CN111437483A - Single-cavity single-sac tracheal catheter capable of conveniently implementing single-lung and double-lung ventilation - Google Patents

Abstract

The invention relates to a ventilation catheter, in particular to a single-chamber single-bag tracheal catheter that can facilitate single- and double-lung ventilation, and belongs to the technical field of tracheal catheters. The airbag vacancy area is set on the side of the catheter sealing bag at the head end of the catheter, and communicates with the operation tube of the surgical lung. When the catheter sealing bag is inflated, it can form a sealing airbag with a groove on the side. The catheter sealing bag seals the bronchial opening of the non-surgical side lung, which can provide respiratory support to the non-surgical side lung; at the same time, the vacancy area of the air bag is adjusted to correspond to the bronchial opening of the surgical side lung. The collapse and expansion of the lung and the clearing of secretions can effectively realize the convenient management of single-lung ventilation; the opening of the head of the catheter is used to place it into the main trachea, and the catheter sealing bag is also located in the main trachea, which can be used as a single-lumen tracheal catheter. Achieve full-function dual-lung or single-lung ventilation management.

Description

Single-lumen and single-balloon endotracheal tube for convenient implementation of single- and double-lung ventilation

technical field

The invention relates to a ventilation catheter, in particular to a single-chamber and single-bag tracheal catheter that can facilitate single- and double-lung ventilation, and belongs to the technical field of tracheal catheters.

Background technique

In thoracic surgery, in order to free up enough surgical space, it is necessary to suspend breathing on the surgical side to collapse the surgical lung, and at the same time, single-lung ventilation is performed on the non-operated lung to meet the demand for oxygen supply during the operation. After the lung operation is completed, it is necessary to temporarily ventilate the surgical side of the lung to detect the airtightness of the surgical side lung resection margin, so as to avoid complications such as pneumothorax caused by air leakage from the surgical side lung incision margin after the chest wall is directly closed. After the operation, it is necessary to perform double-lung ventilation to re-inflate the collapsed operative side of the lung during the operation to achieve the purpose of breathing and exchanging gas.

At present, the main and most common method of implementing one-lung ventilation is the use of a double-lumen bronchial tube to manage the airway. Double-lumen bronchial catheters have the following disadvantages:

1) The double-lumen bronchial catheter is limited by the inner diameter of the trachea of the human body, resulting in a small diameter of a single lumen. During one-lung ventilation, especially in patients with asthma and COPD (chronic obstructive pulmonary disease), the airway pressure is high, May cause damage to the non-operated lung. In patients with pulmonary bullae, it is easy to cause bullae rupture and pneumothorax occurs;

2) The double-lumen bronchial catheter has two ventilation lumens and the influence of the catheter wall, the overall outer diameter of the double-lumen bronchial catheter is relatively thick, and the damage to the glottis and pharynx during intubation is greater, resulting in more complications. , the most common is postoperative throat pain and hoarseness, and even lead to arytenoid cartilage dislocation;

3) The double-lumen bronchial catheter is limited by the inner diameter of the trachea of the human body. Due to the limitation of the inner diameter of the glottis in children, the diameter of a single lumen is small, and it is impossible to produce thinner products suitable for children, which limits its use in children. applications in groups. The current double-lumen bronchial catheter can only be used by children over the age of 10;

4) The double-lumen bronchial catheter is limited by the inner diameter of the trachea of the human body, resulting in a small diameter of a single lumen, which is not conducive to the secretion cleaning operation. In some patients with poor lung function or other reasons who cannot resume spontaneous breathing after surgery and need mechanical respiratory support, at the end of the operation, the double-lumen bronchial catheter needs to be pulled out and the single-lumen tracheal catheter is reinserted to facilitate respiratory support. During respiratory management and secretion clearing operations. It increases the workload of anesthesiologists, and at the same time, increases the related adverse reactions caused by patient intubation. In some patients with poor intubation conditions, hypoxia, cardiac arrest, and even death due to intubation failure.

The bronchial occluder combined with the single-lumen tracheal tube is the most common method for single-lung ventilation and airway management besides the double-lumen bronchial tube. When the tracheal tube needs to be retained for respiratory support after surgery, there is no need to change the tube, and the bronchial occluder can be pulled out. It also has many flaws:

1) The positioning of the bronchial occluder is relatively difficult, and video tools are needed to assist, that is to say, the video tools and the bronchial occluder need to be operated at the same time, the operation is more complicated, and an experienced anesthesiologist is required to implement it smoothly;

2) When positioning the bronchial occluder, it is necessary to simultaneously place the video tool and the bronchial occluder into the single-lumen tracheal tube used in conjunction with it. It is determined that the lumen of the single-lumen tracheal tube cannot be less than 5.5mm, that is to say, the bronchial occluder can only be used. It is difficult to use in patients over 6 years old and children under 6 years old;

3) When in use, the bronchial blocker is used to block the bronchial orifice of the operation side lung, and it is difficult to discharge the air in the operation side lung; it is impossible to clear the secretions of the operation side lung; when the operation side lung needs to be inflated, the The air in the air bag of the bronchial blocker is discharged, and the single-lumen tube inflates the operating side lung, which will cause the blood or secretions in the operating side bronchus to flow into the main trachea, resulting in pollution of the non-operated side lung and main trachea;

4) The balloon of the bronchial occluder is not easy to fix, the lung isolation effect is unstable, and the lung isolation effect is poor due to easy displacement during the operation, and the high pressure and low volume balloon is easy to cause mucosal damage;

5) If the tube cannot be extubated after surgery and breathing support is required, the single-lumen tracheal tube used in conjunction with the tracheal tube needs to be cleaned with subglottic secretions, and the cost will increase significantly;

6) The manufacturing process of the bronchial occluder is more difficult and expensive, which is several times that of the double-lumen bronchial catheter, which imposes a heavy economic burden on the patient.

At present, when children lack effective single-lung breathing management tools, single-lumen tracheal tubes are often inserted into the non-operative side to implement single-lung ventilation. Of course, single-lumen tracheal tubes can also be used in groups other than children. Tracheal tubes have significant disadvantages:

1) The single-lumen endotracheal tube needs to be placed in the non-surgical side bronchus, which causes the bronchial opening of the surgical side to be basically blocked, and it is difficult to discharge the air in the surgical side, which is not conducive to the collapse of the surgical side, and is not conducive to providing sufficient operating space for surgery. ;

2) When the operation side lung needs to be inflated during the operation or at the end of the operation, the single-lumen endotracheal tube needs to be withdrawn a little, and the head end opening of the single-lumen endotracheal tube should be withdrawn into the main trachea, so as to complete the operation-side lung under double-lung ventilation. expansion. The airway itself is short in children, and the tracheal tube can easily be pulled out of the airway due to the withdrawal of the tube. Emergency lateral tracheal intubation may occur, resulting in hypoxia, cardiac arrest, or even death;

3) When the operation side lung needs to be temporarily inflated during the operation, the single-lumen endotracheal tube needs to be retracted a little, and the opening of the single-lumen endotracheal tube is withdrawn to the main trachea to complete the double-lung ventilation, and then the single-lumen endotracheal tube needs to be re-installed. The tip is reinserted into the non-surgical side cannula. This operation is a positioning operation, the depth needs to be more accurate, and it often takes several times to complete, which can lead to mucosal damage at the bronchial opening, bleeding, and even bronchospasm;

4) The pulmonary hemorrhage and mucus on the surgical side accumulate above the single-lumen endotracheal tube balloon, and there is no effective suction method. It is easy to cause atelectasis due to blood clots or mucus blocking the opening of the bronchial opening on the surgical side, or because blood or mucus flows into the bronchus on the non-operated side and causes atelectasis. Main trachea, resulting in contamination of the non-operated lung and main trachea.

In a word, there is a lack of a simple, effective, safe and practical single-lung method that can effectively degass, inflate, and clear the secretions of the operating side lung during thoracic surgery. Ventilation management tool.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the deficiencies in the prior art, and to provide a single-chamber single-sac tracheal catheter that can facilitate single- and double-lung ventilation. The management operation improves the convenience and controllability of the secretion cleaning operation during the operation, and can effectively improve the stability and reliability of the ventilation state of the right lung.

According to the technical solution provided by the present invention, the single-lumen and single-sac tracheal catheter that can facilitate single- and double-lung ventilation includes a catheter body and a catheter breathing connector disposed at the tail end of the catheter body, and the head end of the catheter body has a The end hole of the catheter body, the end hole of the catheter body can be communicated with the catheter breathing connector through the lumen of the catheter body; a catheter sealing bag is provided on the outer wall of the catheter body head, and the catheter sealing bag is connected to the catheter body. The balloon body inflation and deflation connecting pipes of the catheter sealing bag are connected and communicated, and an inflation and deflation sealing valve is arranged at the end of the balloon body inflation and deflation connecting pipes;

It also includes a balloon vacancy area arranged on the head of the catheter body, the catheter sealing bag annularly wraps the corresponding outer wall except the balloon vacancy area on the catheter body, the balloon vacancy area is located in the guide, and the length of the catheter sealing bag is greater than that of the balloon. The length of the vacant area, the vacant area of the balloon is located between the corresponding upper and lower edges on one side of the catheter sealing bag;

The lower edge of the catheter sealing bag is located between the empty area of the airbag and the hole at the end of the catheter body. After the catheter sealing bag is inflated and inflated, the inflated catheter sealing bag and the empty area of the airbag can form an outer side groove on the side of the catheter body head. The annular cylindrical bag body, the outer side groove formed by the air bag vacancy area is located in the upper middle and upper part of one side of the annular cylindrical bag body;

A number of side holes of the catheter are arranged on the wall of the catheter body corresponding to the void area of the balloon, the side holes of the catheter are isolated from the lumen in the catheter body, and the side holes of the catheter in the void area of the balloon are connected to those that can be embedded in the catheter. The surgical lung operation tube in the body is connected, and the surgical lung operation joint on the surgical lung operation tube can be adapted and connected with the breathing support mechanism and/or the negative pressure suction mechanism, and the surgical lung operation joint and the surgical lung operation tube are located outside the catheter. End seal connection.

The conduit body comprises a main body part of the tube and an arc-shaped head part connected with the main body part of the tube. In the middle of the bag, the included angle α between the axis of the main body of the tube and the axis of the arc head is 15°-45°;

The distance between the lower edge of the catheter sealing bag and the end hole of the catheter body is 0.5cm-1.5cm; the distance between the lower edge of the airbag vacancy area and the end hole of the catheter body is 0.5cm-3cm.

The length of the balloon void area along the length direction of the catheter body is 0.5cm-3cm; the length of the balloon void area along the length direction perpendicular to the catheter body is 0.25 to 0.5 times the outer circumference of the catheter.

The surgical lung operation joint includes a breathing operation interface communicated with the surgical lung operation tube, a suction operation interface, and a joint sealing mechanism that can be adapted to the breathing operation interface and the suction operation interface, and can be adapted and connected to the breathing support mechanism through the breathing operation interface. , can be connected with the negative pressure suction mechanism through the suction operation interface;

The joint sealing mechanism includes a breathing operation interface head capable of sealing the breathing operation interface and a suction operation interface head capable of sealing the suction operation interface.

The end hole of the duct body is set as an oblique wedge-shaped opening or a flat-shaped opening at the head end of the duct body;

When the end hole of the catheter body is set as an oblique wedge-shaped opening, the slope surface formed by the oblique wedge-shaped opening is located on the catheter body in a direction opposite to the void area of the balloon;

When the end hole of the catheter body is set as a flat opening, a head end exhaust hole is provided at the head end of the catheter body, and the head end exhaust hole is located between the lower edge of the catheter sealing bag and the end hole of the catheter body. The end exhaust hole penetrates through the corresponding pipe wall of the catheter body, and the head end exhaust hole is located on the catheter body in the opposite side of the airbag vacancy area.

The conduit breathing connector includes a joint conduit connecting pipe that can be fitted and connected with the tail end of the conduit body and a joint connecting sleeve for fittingly connected with the ventilator/anesthesia machine, and the tail end of the conduit body can be sleeved on the joint conduit. On the connecting pipe, the joint connecting sleeve can be sleeved on the joint conduit connecting pipe, the joint connecting sleeve can communicate with the conduit body through the joint conduit connecting pipe, and the joint connecting sleeve can rotate relative to the joint conduit connecting pipe and the conduit body.

The joint conduit connecting pipe is provided with a joint conduit conduit convex ring, and a joint conduit conduit groove allowing the joint conduit conduit to be embedded is arranged in the pipe wall of the joint conduit conduit; the joint conduit conduit is sleeved on the joint conduit conduit At the same time, the joint conduit connecting pipe is embedded in the joint connecting casing groove, and the joint conduit connecting pipe convex ring can be embedded in the joint connecting casing positioning groove in the joint connecting casing, and the joint conduit connecting pipe convex ring is used to connect with the joint. With the cooperation of the sleeve positioning groove, the joint connecting sleeve can be rotated on the joint conduit connecting pipe.

A tooth pad mechanism for opening the oral cavity is arranged on the catheter body, the tooth pad mechanism can be locked on the catheter body, and when the locked state of the tooth pad mechanism and the catheter body is released, the catheter body and the tooth pad mechanism can be locked relative motion.

The tooth pad mechanism includes a tooth pad locking connection sleeve that can be sleeved on the catheter body and a locking adjustment connecting tube that can be sleeved on the catheter body and can be fitted and connected with the tooth cushion locking connection sleeve. The tube is covered with a tooth cushion cover for teeth occlusion;

The inner wall of the locking and adjusting connecting pipe is provided with the inner thread of the adjusting connecting pipe, and the thickness of the pipe wall of the locking and adjusting connecting pipe is gradually changed; the outer wall of the tooth cushion locking connecting sleeve is provided with a locking sleeve which can be matched with the inner thread of the adjusting connecting pipe External thread, the head end of the tooth pad locking connecting sleeve can extend into the locking adjustment connecting pipe and be tightly connected with the locking adjusting connecting pipe, and the tail end of the tooth cushion locking connecting sleeve is divided to form a plurality of connecting locking pieces;

The relative movement of the locking adjustment connecting tube and the tooth pad locking connecting sleeve makes the connecting locking piece shrink toward the catheter body, so that the tooth cushion locking connecting sleeve and the catheter body can be mutually locked; the relative movement of the locking adjusting connecting tube and the tooth cushion locking connecting sleeve makes the connection When the locking piece is opened away from the catheter body, the locking state of the tooth pad locking connecting sleeve and the catheter body can be released.

The tooth pad cover is provided with tooth pad grooves that allow teeth to be embedded, and the tooth pad grooves are symmetrically distributed on the tooth pad cover; at least one cover body that can be adapted to the secretion cleaning tube is also arranged on the tooth pad cover The sleeve body groove is located between two tooth cushion grooves on the tooth pad sleeve, and the secretion cleaning tube can be placed in the oral cavity through the sleeve body groove.

It also includes a video image acquisition mechanism capable of acquiring the position state of the catheter body when it is in use, and the video image acquisition mechanism is adapted and connected to the catheter body;

The video avatar collecting mechanism includes a sampling connecting rod that can be embedded in the catheter body and a connecting rod video head located at the head end of the sampling connecting rod, and the length of the sampling connecting rod is greater than that of the catheter body; The connecting rod video head can pass through the hole at the end of the catheter body, or the connecting rod video head can be withdrawn from the catheter body through the sampling connecting rod; the connecting rod video head can be connected with the connecting rod video line embedded in the sampling connecting rod. The connecting rod video output connector is electrically connected;

A video conduit connector is set at the end of the sampling connecting rod, and the conduit breathing connector is detachably connected to the conduit body. When the conduit breathing connector is disassembled and separated from the conduit body, the video conduit connector is adapted to connect with the tail end of the conduit body. The video conduit connector is detachably connected to the tail end of the conduit body;

After the video catheter connector is adapted and connected with the catheter body, the sampling rod can be inserted into the catheter body; the video catheter connector is connected with the catheter body, and the catheter body can be connected with the ventilator/anesthesia machine through the video catheter connector;

The sampling connecting rod includes a number of evenly distributed connecting rod pieces, and a gas flow groove that allows gas to pass through can be formed between adjacent connecting rod pieces; The guide flows down and can be discharged through the void area of the balloon and the end hole of the catheter body.

The video image acquisition mechanism includes a wire body video head located in the lumen of the catheter body and a connecting wire body electrically connected to the wire body video head, and a tube wall of the catheter body is provided with a wire body allowing the connection wire body to pass through. The tube body line hole, the tube body line hole and the airbag vacancy area are respectively located on the two sides corresponding to the catheter body; the connecting line body is also electrically connected with the line body video connector, and the line body video connector is located outside the catheter body; pull When connecting the line body, the position of the line body video head in the catheter body can be adjusted.

The advantages of the present invention: the airbag vacancy area can be communicated with the operation tube of the surgical lung, the airbag vacancy area and the catheter sealing bag are matched to form a groove on the outer side of the catheter body, and the catheter body and the catheter sealing bag are used to perform breathing support for the non-surgical side lung. The airbag vacancy area corresponds to the bronchial opening of the operating side lung, and the operation side operation tube and the airbag vacancy area can be used together to realize the management of the operating side, so as to effectively realize the management operation of the deflated lung and tympanic lung of the operating side lung, and improve the The convenience and controllability of the secretion cleaning operation during the operation, the head-end exhaust hole can be set at the head end of the catheter body, and the head-end exhaust hole is used to correspond to the upper lobe bronchus of the right lung, which can effectively improve the right lung. Stability and reliability of ventilation status.

Description of drawings

FIG. 1 is a perspective view of an implementation structure of the present invention.

Fig. 2 is a perspective view when the end hole of the catheter body of the present invention is in an oblique wedge shape.

FIG. 3 is a cross-sectional view of the embodiment of FIG. 1 .

Fig. 4 is a perspective view of the present invention when a vent hole on the side of the head is provided on the catheter body.

FIG. 5 is a perspective view of the back side of the implementation structure of FIG. 2 .

FIG. 6 is a perspective view of the present invention when a head end exhaust hole is provided.

FIG. 7 is a cross-sectional view when the structure in FIG. 4 is implemented.

FIG. 8 is a perspective view of the present invention when the end hole of the catheter body is in a wedge shape and a head end exhaust hole is provided on the catheter body.

FIG. 9 is a perspective view of the implementation structure of FIG. 8 .

Fig. 10 is a cross-sectional view of the present invention when the end hole of the catheter body is in the shape of a flat mouth and the head end exhaust hole is provided on the catheter body.

FIG. 11 is a schematic diagram of the video image acquisition mechanism using the sampling link and the catheter body in cooperation with the present invention.

FIG. 12 is a cross-sectional view of an embodiment corresponding to FIG. 11 .

FIG. 13 is a schematic diagram of the video image acquisition mechanism in FIGS. 11 and 12 .

Fig. 14 is a partial enlarged view of the sampling connecting rod.

Figure 15 is a perspective view of the video conduit connector of the present invention.

Figure 16 is a cross-sectional view of the video conduit connector of the present invention.

Fig. 17 is a perspective view of the video ventilation connecting pipe of the present invention.

Fig. 18 is a perspective view of the adjusting transition pipe of the present invention.

Fig. 19 is a perspective view of the video connection pipe of the present invention.

FIG. 20 is a perspective view of the first ring body rotatably connected according to the present invention.

FIG. 21 is a perspective view of the video image acquisition mechanism using the connecting wire body in cooperation with the catheter body according to the present invention.

FIG. 22 is a cross-sectional view of the mating in FIG. 21 .

23 is a cross-sectional view of the connecting wire body of the present invention in the catheter body.

FIG. 24 is a cross-sectional view of the linear video head of the present invention in the catheter body.

Figure 25 is a perspective view of the catheter breathing connector of the present invention.

Figure 26 is a cross-sectional view of the catheter breathing connector of the present invention.

Figure 27 is a perspective view of the tooth pad mechanism of the present invention.

Fig. 28 is a perspective view of the connection and cooperation of the tooth pad cover and the tooth pad locking connecting sleeve according to the present invention.

FIG. 29 is a perspective view of the connection and cooperation of the locking adjustment connecting tube and the tooth pad locking connecting sleeve according to the present invention.

Figure 30 is a cross-sectional view of the locking adjustment coupling of the present invention.

Fig. 31 is a schematic diagram of the angle between the main body portion of the pipe and the arc-shaped head portion of the present invention.

Description of reference numerals: 1-catheter body, 2-catheter sealing bag, 3-catheter side hole, 4-outer side groove, 5-balloon body inflating and deflating connecting pipe, 6-inflating and deflating sealing valve, 7- Joint connection sleeve, 8- tooth cushion sleeve, 9- tooth cushion sleeve, 10- tooth cushion sleeve protrusion, 11- sleeve body groove, 12- locking adjustment connecting tube, 13- surgical lung operation tube, 14- breathing operation interface , 15 - suction operation interface, 16 - breathing operation interface head, 17 - head carrier plate, 18 - suction operation interface head, 19 - slope surface, 20 - catheter body end hole, 21 - carrier board connector, 22-Joint conduit connection tube, 23-Tooth pad locking connection sleeve, 24-Head side vent hole, 25-Head end vent hole, 26-Joint conduit connection tube convex ring, 27-Link video head, 28- Linkage video cable, 29-linkage video output connector, 30-video ventilation pipe, 31-video connection pipe, 32-rotational connection to the first ring body, 33-rotational connection to the second ring body, 34-video connection connecting pipe, 35-sampling connecting rod, 36- connecting rod hole, 37- connecting rod external thread, 38- connecting rod piece, 39- ventilation connecting pipe lumen, 40- adjusting transition connecting pipe, 41- side pipe positioning seal, 42-Internal thread for transition adjustment, 43-The lower body of the ventilation connecting pipe, 44-The first groove for the rotation connection, 45-The second groove for the rotation connection, 46-The rotation positioning groove for the video connection connection pipe, 47-The video connection connection pipe end plate, 48-Limit block in video connection tube, 49-ring body, 50-ring body step, 51-ring body end groove, 52-connecting line body, 53-line body video connector, 54-line body video head, 55 - Video head base, 56- Base guide limit groove, 57- Joint connection casing wall groove, 58- Joint pipe connection pipe end plate, 59- Joint connection casing positioning groove, 60- Joint connection casing groove, 61- Adjust the inner thread of connecting pipe, 62-connection locking piece, 63-locking sleeve outer thread, 64-locking piece dividing groove, 65-pipe main body and 66-arc head.

Detailed ways

The present invention will be further described below with reference to the specific drawings and embodiments.

As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 10, Figure 11, Figure 12, Figure 21 and Figure 22: The non-surgical side lung single-lung ventilation and the operation side lung deflated lung and tympanic lung management operations improve the convenience and controllability of the operation side lung secretion clearance operation during the operation. The present invention includes a catheter body 1 and a The catheter breathing connector at the tail end of the catheter body 1 has a catheter body end hole 20 at the head end of the catheter body 1, and the catheter body end hole 20 can communicate with the catheter breathing connector through the lumen of the catheter body 1 , the head end of the inner cavity of the catheter body 1 is opened to form a catheter body end hole 20; a catheter sealing bag 2 is arranged on the outer wall of the head of the catheter body 1, and the catheter sealing bag 2 is connected to the catheter sealing bag. 2. The inflating and deflating bag body inflating and deflating connecting pipes 5 are connected and communicated, and an inflating and deflating sealing valve 6 is provided at the end of the bag body inflating and deflating connecting pipes 5;

It also includes a balloon vacancy area arranged on the head of the catheter body 1, the catheter sealing bag 2 annularly wraps the corresponding outer wall except the balloon vacancy area on the catheter body 1, the balloon vacancy area is located in the guide, and the catheter sealing bag 2 The length of the airbag is greater than the length of the airbag vacancy area, and the airbag vacancy area is located between the corresponding upper edge and lower edge of the catheter sealing bag 2 side;

The lower edge of the catheter sealing bag 2 is located between the void area of the balloon and the end hole 20 of the catheter body. After the catheter sealing bag 2 is inflated and inflated, a side surface can be formed on the head of the catheter body 1 through the expanded catheter sealing bag 2 and the void area of the balloon. An annular cylindrical bag body with an outer side groove 4, and the outer side groove 4 formed by the airbag vacancy area is located in the middle and upper part of one side of the annular cylindrical bag body;

A plurality of catheter side holes 3 are provided on the wall of the catheter body 1 corresponding to the void area of the balloon, the side holes 3 of the catheter are isolated from the lumen in the catheter body 1, and the side holes of the catheter in the void area of the balloon are 3. It is communicated with the surgical lung operation tube 13 that can be embedded in the catheter body 1, and the surgical lung operation joint on the surgical lung operation tube 13 can be adapted to be connected with a breathing support mechanism and/or a negative pressure suction mechanism. The joint is sealingly connected with the end of the surgical lung operation tube 13 located outside the catheter body 1 .

Specifically, the catheter body 1, the catheter breathing connector, and the catheter sealing bag 2 all need to be made of materials that meet medical standards, and the length and outer diameter of the catheter body 1 can all use the same specifications as the existing single-lumen tracheal catheters. , which can be selected as required, and will not be repeated here. The catheter breathing connector is connected to the tail end of the catheter body 1 , and the catheter body 1 can be adapted and connected to the ventilator/anesthesia machine for breathing support through the catheter breathing connector, so that the required breathing support can be performed through the catheter body 1 . Generally, the conduit breathing connector and the conduit body 1 are in a sealed connection, that is, the gas in the conduit body 1 will not escape through the joint between the conduit body 1 and the conduit breathing connector. The end hole 20 of the catheter body is located at the head end of the catheter body 1, and the end hole 20 of the catheter body is communicated with the catheter body 1. During the respiratory support process, the gas entering and leaving the catheter body 1 can pass through the end hole 20 of the catheter body. Breathing replacement of air in the lungs.

The void area of the balloon does not penetrate the tube wall on the side where the catheter body 1 is located, that is, the gas in the catheter body 1 will not be discharged through the void area of the balloon. In order to achieve the sealing effect during ventilation, a catheter sealing bag 2 needs to be provided at the head end of the catheter body 1 , and the catheter sealing bag 2 is wrapped on the outer wall of the catheter body 1 . In the embodiment of the present invention, the length direction of the catheter sealing bag 2 is consistent with the length direction of the catheter body 1, but the length of the catheter sealing bag 2 is much smaller than the length of the catheter body 1, generally 3cm-5cm. In order not to affect the function of the airbag vacancy area, the catheter sealing bag 2 wraps the corresponding outer wall of the airbag vacancy area on the head of the catheter body 1, and the airbag vacancy area is located between the two ends of the catheter sealing bag 2, that is, the outer ring of the airbag vacancy area. In order to wrap the catheter sealing bag 2 of the catheter body 1, the lower edge of the catheter sealing bag 2 is located between the void area of the balloon and the end hole 20 of the catheter body, and the void area of the balloon is located between the upper edge of the catheter sealing bag 2 and the lower part of the catheter sealing bag 2. between the edges.

In the embodiment of the present invention, the airbag vacancy area and the surgical lung operation tube 13 are communicated through the side hole 3 of the catheter, and the operation of the surgical side lung can be performed by the cooperation of the surgical lung operation tube 13 and the airbag vacancy area, including deflation of the lung, tympanic lung, feeding Oxygen or secretion cleaning, among which, deflated lung refers to the extraction of the air in the lung on the operating side, so that the lung on the operating side collapses, freeing up the space of the chest cavity on the operating side to facilitate the operation; In the lateral lung, the collapsed lung can be re-inflated; the secretion cleaning operation specifically refers to attracting the secretion produced during the operation out of the body to reduce the secretion of the secretion from blocking the small airway (in clinical practice, it usually refers to small bronchioles with an inner diameter of less than 2 mm). Atelectasis caused by reduced secretions caused by lung infections.

In specific use, when the operative side lung is the left lung, the right lung is required for respiratory support during the operation. After anesthesia, the catheter body 1 is inserted into the airway by common technical means, and the depth and position of the catheter body 1 are adjusted to seal the catheter. The balloon 2 is located on the right side of the carina, that is, the front half of the catheter sealing balloon 2 is located in the right bronchial opening, and the rear half of the catheter sealing balloon 2 (including the balloon vacancy area) is behind the carina in the trachea. At this time, the balloon vacancy area is located in the main trachea. It is posterior to the left side of the inner carina, so that the air sac vacancy area is directly opposite the opening of the left bronchus. The catheter sealing bag 2 is filled with an appropriate amount of gas, the catheter sealing bag 2 is inflated, the front half of the catheter sealing bag 2 blocks the right bronchus, and the latter half of the catheter sealing bag 2 blocks the main trachea. The catheter body 1 can provide respiratory support to the right lung through the end hole 20 of the catheter body, and at the same time, can manage the left lung through the surgical lung operation tube 13 and the air bag vacancy area, such as: the left lung can be operated through the surgical lung operation tube 13 and air bag vacancy. The area is connected to the outside world, which can discharge the gas from the left lung and realize the collapse of the left lung; or through the operation of the surgical lung operation tube 13 and the airbag vacancy area and external negative pressure suction equipment to achieve operations such as secretion cleaning; through the surgical lung operation tube 13 and when the air bag vacancy area can send gas to the left lung, the collapsed left lung can be inflated, that is, the lung lung operation; through the operation of the lung operation tube 13 and the air bag vacancy area, pure oxygen can be sent to the left lung, which can achieve auxiliary Oxygen support. In specific implementation, the first half of the catheter sealing bag 2 specifically guides the part of the catheter sealing bag 2 adjacent to the end hole 20 of the catheter body, and the second half of the catheter sealing bag 2 specifically guides the part of the catheter sealing bag 2 away from the end hole 20 of the catheter body .

Before the start of the operation, the catheter breathing connector at the tail of catheter body 1 is connected to the ventilator/anesthesia machine, and the ventilator/anesthesia machine provides respiratory support to the right lung to ensure the oxygen supply of the patient. At the same time, the left bronchus of the left lung is communicated with the outside by the cooperation of the air bag vacancy area and the surgical lung operation tube 13, so that the air in the left lung is discharged, and the left lung is collapsed, so that the left thoracic cavity has enough operation space. If necessary, a negative pressure suction device can be connected to the tail of the surgical lung operation tube 13 to perform negative pressure suction, so as to discharge the gas in the left lung. When the lung compliance of COPD patients is poor, negative pressure suction is often required to assist in the expulsion of gas from the lungs on the surgical side.

At the beginning of the operation, the catheter body 1 provides single-lung breathing support to the right lung through the end hole 20 of the catheter body, and implements single-lung ventilation of the right lung to ensure the oxygen supply of the patient. The left lung in a collapsed state can avoid damage to the left lung during chest wall incision. At the same time, during the operation, there is enough space in the thoracic cavity on the operating side to facilitate the operation, reducing the difficulty of the operation and improving the safety of the operation.

For some patients with poor pulmonary exchange function, the oxygen supply of the right lung alone may be insufficient, and the simple right lung ventilation during the operation may lead to hypoxemia in the patient, which increases the risk of surgery and is not good for the patient. At this time, oxygen can be connected to the tail of the surgical lung operation tube 13 to supply low-pressure oxygen to the left lung on the surgical side, so that the small airway of the collapsed left lung is filled with oxygen, and the oxygen can be exchanged with blood, thereby increasing the patient's oxygen supply and improving hypoxic blood. disease.

When it is necessary to suction the left lung with negative pressure to clear the secretions during the operation, it is only necessary to connect the tail end of the surgical lung operation tube 13 to the negative pressure device. During the operation, the operative lung is on the upper side, and the non-operative side is on the lower side. When there is secretion in the operative lung, under the action of gravity, the secretion will flow to the bronchial mouth of the operative side, and the secretion will pass through the grooves on the lateral side. After storage, the secretion can be sucked and cleaned through the surgical lung operation tube 13 . When necessary, a small amount of normal saline can be injected into the bronchi of the operation side lung through the operation lung operation tube 13 to dilute the bronchial secretions of the operation side lung, and then suction and discharge with negative pressure to ensure the cleaning effect of negative pressure. In principle, the normal saline for each flushing should be controlled within 20ml, to avoid excessive absorption of normal saline through the lungs, and postoperative atelectasis caused by the reduction of active substances distributed on the inner surface of the alveoli. The operation of injecting normal saline into the operating lung through the operating lung operation tube 13 and the airbag vacancy area for irrigation and suction is the same as the operation of using normal saline to rinse the bronchial anastomosis when the transplanted lung anastomosis is completed in the existing lung transplantation operation. It is well known to those skilled in the art and will not be repeated here.

When the operation of the left lung is completed, it is necessary to check the tightness of the left lung incision and anastomosis, and the left lung can be inflated and filled with gas through the operation lung operation tube 13 and the air bag vacancy area to realize the tympanic operation. If the incision and anastomosis leaks, the left lung gas is discharged through the surgical lung operation tube 13 again, so that the left lung is collapsed, and it is convenient to strengthen the repair of the leaking incision and suture. Until the incision and anastomosis detection is satisfactory, the left lung can be completed. surgical operation.

After the operation of the left lung is completed, the double-lung ventilation should be resumed in time. At this time, the left lung is sucked by negative pressure through the operation tube 13 to clear the secretions, and then the left lung is inflated to inflate the left lung. Zhang (in medicine, lung recruitment refers to the re-inflated state in the lung tissue), and then the catheter body 1 is retracted by 3cm-5cm, so that the catheter sealing bag 2 is retracted into the main trachea. The void area of the air bag corresponds to the side wall of the main trachea, and can form a blind hole state. The ventilator/anesthesia function can be connected and matched with the catheter body 1 through the catheter breathing connector at the tail end of the catheter body 1, so as to realize the support of double-lung ventilation. On the one hand, it can reduce the stimulation of the carina by the catheter sealing bag 2 and reduce the cardiovascular response; on the other hand, it can reduce the collapse time of the operated lung as much as possible, reduce the decrease of alveolar surfactant, and reduce the probability of atelectasis caused by this. .

In the same way, when the operated lung is the right lung, the left lung is required for respiratory support during the operation. After anesthesia, the catheter body 1 is inserted into the main trachea by using common technical means, and the depth and position of the catheter body 1 are adjusted to seal the catheter. The balloon 2 is located on the left side of the carina, that is, the front half of the catheter sealing balloon 2 is located in the left bronchial opening, and the rear half of the catheter sealing balloon 2 (including the balloon vacancy area) is behind the carina in the trachea. At this time, the balloon vacancy area is located in the main trachea. Right posterior to the inner carina, so that the air sac vacancy area is directly opposite the opening of the right bronchus. The catheter sealing bag 2 is filled with an appropriate amount of gas, the catheter sealing bag 2 is inflated, the front half of the catheter sealing bag 2 blocks the left bronchus, and the latter half of the catheter sealing bag 2 blocks the main trachea. The catheter body 1 can provide respiratory support to the left lung through the hole 20 at the end of the catheter body, and at the same time, it can manage the right lung through the surgical lung operation tube 13 and the airbag vacancy area. The specific operation process is similar to that of the left side operation. Here No longer.

In some special cases, when it is necessary to operate on both lungs in sequence, firstly position the catheter body 1 according to the above method, so that the anterior half of the catheter sealing bag 2 enters the bronchial opening of the A side lung, and the air bag vacancy area is facing the B side lung. At the bronchial opening, until the B side lung completes the required surgery. After the B-side lung operation is completed, the catheter body 1 is retracted by 3cm-5cm, and the catheter sealing bag 2 is retracted into the main trachea. Reposition the catheter body 1 so that the anterior half of the catheter sealing bag 2 enters the bronchial opening of the B side lung, and the vacant area of the balloon faces the bronchial opening of the A side lung until the operation of the A side lung is completed. In this way, bilateral lung surgeries can be performed sequentially without changing airway management tools. The above-mentioned A side lung is one of the left lung or the right lung, and the B side lung is the other side lung corresponding to the A side lung. Of course, when performing the above-mentioned conversion of the A-side lung and the B-side lung, it is also necessary to perform the same operations as the above-mentioned sealing inspection of the incision and anastomosis, secretion cleaning, etc. The specific operation process can refer to the above description, and will not be repeated here.

In some patients with extremely poor pulmonary function, when the pulmonary function after surgery is not enough to support the patient's spontaneous breathing (the judgment standard is that the patient's arterial oxygenation index is lower than 250 mmhg), the tracheal tube cannot be pulled out after surgery, and only the catheter body 1 needs to be withdrawn. 3cm-5cm, so that the catheter sealing bag 2 is retracted into the main trachea. The void area of the airbag corresponds to the side wall of the main trachea, forming a blind hole state. The ventilator/anesthesia function can realize double-lung ventilation by cooperating with the catheter body 1 through the catheter breathing connector at the tail end of the catheter body 1, and perform post-operative breathing management.

As shown in FIGS. 1 and 5 , an outer side groove 4 is formed on the outer side of the head of the catheter body 1 through the catheter sealing bag 2 and the balloon void area; the balloon void area includes one or more catheter side holes 3, All the side holes 3 of the catheter in the void area of the balloon can be communicated with the surgical operation tube 13 embedded in the catheter body 1;

The tail of the surgical lung manipulation tube 13 is located outside the catheter body 1, and a surgical lung manipulation joint is provided at the tail end of the surgical lung manipulation tube 13. The surgical lung manipulation tube 13 can be connected to a breathing support mechanism and/or negative pressure through the surgical lung manipulation joint. The suction mechanism is adapted to connect.

In the embodiment of the present invention, since the catheter sealing bag 2 is wrapped on the catheter body 1, the vacant area of the airbag that is not wrapped by the catheter sealing bag 2 can form an outer side groove 4 on the outer surface of the head of the catheter body 1. The said The outer ring of the groove 4 on the outer side is the catheter sealing bag 2 . The balloon void area includes a plurality of catheter side holes 3, and the catheter side holes 3 can be distributed in an array on the catheter body 1, or only one catheter side hole 3 with a larger diameter can be set on the catheter body 1. The specific situation can be The selection is made according to actual needs, and details are not repeated here. As shown in FIG. 1 and FIG. 5 , the catheter body 1 is provided with a row of catheter side holes 3 , and the arrangement direction of the plurality of catheter side holes 3 is consistent with the length direction of the catheter body 1 , so that the operation of the lung The operation tube 13 corresponds to and communicates with the bronchial opening of the operation side lung through the catheter side hole 3 in the airbag vacancy area, so that the operation side lung can be operated on the operation side lung through the operation lung operation pipe 13 .

In specific implementation, in order to communicate with the side hole 3 of the catheter, the head of the surgical lung operation tube 13 is embedded in the catheter body 1 , and of course, the main body of the surgical lung operation tube 13 is also embedded in the tube wall of the catheter body 1 , the tail of the surgical lung operation tube 13 is located outside the catheter body 1 . The tail end of the surgical lung operating tube 13 is provided with a surgical lung operating joint, and the surgical lung operating joint can be adapted to connect with a ventilator/anesthesia machine, a simple breathing balloon or a negative pressure suction mechanism; wherein, the ventilator/anesthesia machine or The simple breathing balloon can achieve the purpose of feeding the required gas into the surgical lung operation tube 13 to achieve the purpose of inflating the lungs or supplying oxygen. The negative pressure suction mechanism can achieve negative pressure suction to clear the secretions and realize the air in the lungs on the operating side. discharge.

Further, the surgical lung operation joint includes a breathing operation interface 14 communicating with the tail end of the surgical lung operation tube 13, and a suction operation interface 15 is provided on the breathing operation interface 14, and the suction operation interface 15 passes through the breathing operation interface 14. Can communicate with the surgical lung operation tube 13;

It also includes a joint sealing mechanism that can be adapted to the breathing operation interface 14 and the suction operation interface 15. The joint sealing mechanism includes a breathing operation interface head 16 that can seal the breathing operation interface 14 and a suction operation interface that can seal the suction operation interface 15. The operation interface head 18, the breathing operation interface head 16 and the suction operation interface head 18 are respectively located on both sides of the head carrier plate 17, and the head carrier plate 17 is connected to the surgical lung operation tube through the carrier plate connecting body 21. 13 Adapter connection. Of course, the head 16 of the breathing operation interface and the head 18 of the suction operation interface may be arranged on the same side, or the two may be arranged independently.

In the embodiment of the present invention, the breathing operation interface 14 is connected and communicated with the tail end of the surgical lung operation tube 13. The outer diameter of the breathing operation interface 14 is generally larger than that of the surgical lung operation tube 13, and is a standard breathing interface, which can be realized through the breathing operation interface 14. Adapted and connected to the ventilator/anesthesia machine, the specific size and shape of the breathing operation interface 14 are matched with the corresponding interface of the ventilator/anesthesia machine, which are well known to those skilled in the art, and will not be repeated here. The suction operation interface 15 is located on the breathing operation interface 14, the length direction of the suction operation interface 15 and the length direction of the breathing operation interface 14 can be perpendicular to each other, and the suction operation interface 15 can be communicated with the breathing operation interface 14, so that the suction operation interface 15 is operated by breathing. The interface 14 can communicate with the surgical lung operation tube 13 . The diameter of the suction operation interface 15 is smaller than that of the breathing operation interface 14. The size and shape of the suction operation interface 15 need to be matched with the connected negative pressure suction equipment, so that the suction operation interface 15 can be adapted to the negative pressure suction equipment. with connection.

In order to avoid the mutual influence between the process of lung inflation and the process of deflated lung and suction, the breathing operation interface 14 and/or the suction operation interface 15 can be sealed by the joint sealing mechanism. Specifically, the joint sealing mechanism can seal the breathing operation interface 14 through the breathing operation interface head 16 , and can seal the suction operation interface 15 through the suction operation interface head 20 . Generally, the breathing operation interface head 16 is covered on the breathing operation interface 14 or can be inserted into the breathing operation interface 14, as long as the breathing operation interface 14 can be realized; the suction operation interface head 20 is covered on the suction operation interface 15 or It is inserted into the suction operation interface 15 to realize the sealing of the suction operation interface 15, and the specific form can be selected according to needs, which will not be repeated here.

In the embodiment of the present invention, the breathing operation interface head 16 and the suction operation interface head 20 are located on the head carrier 17 , but the breathing operation interface head 16 and the suction operation interface head 20 are located on both sides of the head carrier 17 , the head carrier plate 17 is adapted and connected to the surgical lung operation tube 13 through the carrier plate connector 21 . In specific implementation, the carrier board connecting body 21 can be a connecting wire body, or a foldable and stretchable form. After the carrier board connecting board 21 is connected with the surgical lung operation tube 13, the head carrier board 17 can be moved, thereby The suction operation interface 15 and the breathing operation interface 14 can be sealed, and at the same time, through the connection between the surgical lung operation tubes 13, the loss of the head carrier plate 17 can be avoided, and the convenience of use can be improved.

As shown in FIG. 31 , the catheter body includes a pipe main body 65 and an arc head 66 connected to the pipe main part 65 , the arc head 66 and the pipe main part 65 communicate with each other, and the arc head The joint part of the part 66 and the tube main body part 65 is located in the middle part of the catheter sealing bag 2, and the included angle α between the axis of the tube main body part 65 and the axis of the arc-shaped head part 66 is 15°-45°; The arc-shaped opening bottoms of 66 are located on the corresponding two sides of the catheter body 1 respectively.

In the embodiment of the present invention, the main body portion 65 of the pipe generally includes the tail portion and the middle region of the catheter body 1 , the arc-shaped head portion 66 is generally the head portion of the catheter body 1 , and the main body portion 65 of the pipe generally has a straight tubular shape or an overall straight tubular shape. The curved head 66 is arc-shaped, the length of the arc-shaped head 66 is much smaller than that of the pipe main body 65, the arc-shaped head 66 is communicated with the pipe main body 65, and the catheter body end hole 20 is located at the end of the arc-shaped head 66. department. Specifically, the joint portion of the arc-shaped head portion 66 and the tube main body portion 65 is located in the middle of the catheter sealing bag 2, generally not exceeding the upper edge of the void area of the balloon. Due to the shape relationship between the main body part 65 of the pipe and the arc head 66, the axis of the main pipe part 65 and the axis of the arc head 66 have an angle α, and the size of the angle α is 15°˜45° °. In specific implementation, the angle α between the arc-shaped head 66 and the tube main body 65 is used to make the arc-shaped head 66 carry its own direction, which can have a guiding function during intubation, and can improve the non-surgical placement of the catheter body 1. Convenience and reliability of lateral lungs. When the catheter body 1 is inserted into the corresponding bronchus from the main airway, the arc-shaped head 66 is used to have its own shaping effect, and the tail of the catheter body 1 is rotated to drive the arc-shaped head 66 to rotate, so that the arc-shaped head 66 faces the target. The direction of the bronchial orifice is convenient for the arc head 66 to enter the target bronchus, and after the arc head 66 enters the corresponding bronchus, the required intubation process of the catheter body 1 can be realized.

In specific implementation, the arc-shaped head 66 has an arc-shaped opening, and the side of the arc-shaped head 66 corresponding to the bottom of the arc-shaped opening corresponds to the side of the catheter body 1 where the airbag vacancy area is located, that is, the arc-shaped opening of the arc-shaped head 66 is the same as The vacant areas of the balloon are located on the corresponding two sides of the catheter body 1 respectively, and the vacant areas of the balloon are located on the opposite side of the deflection direction of the arc-shaped head 66 .

Further, the distance between the lower edge of the catheter sealing bag 2 and the end hole 20 of the catheter body is 0.5cm to 1.5cm; the distance between the lower edge of the airbag vacancy area and the end hole 20 of the catheter body is 0.5cm to 3cm .

The length of the balloon void area along the length direction of the catheter body 1 is 0.5cm-3cm; the length of the balloon void area along the length direction perpendicular to the catheter body 1 is 0.25 to 0.5 times the outer circumference of the catheter body 1 .

In the embodiment of the present invention, the length of the vacant area of the airbag is 0.5 cm to 3 cm, and the length of the vacant area of the airbag specifically refers to the length that is consistent with the length direction of the catheter body 1 . The length of the side hole 3 of the catheter is preferably consistent with the length of the void area of the balloon. Of course, the length of the side hole 3 of the catheter can also be smaller than the length of the void area of the balloon. The length of the cross section perpendicular to the longitudinal direction of the catheter body 1 of the airbag vacancy area is 0.25 times to 0.5 times the outer circumference of the side wall of the catheter body 1 .

In specific implementation, the distance between the lower edge of the catheter sealing bag 2 and the end hole 20 of the catheter body is 0.5 cm to 1.5 cm, and the distance between the upper edge of the catheter sealing bag 2 and the outer edge of the balloon void area is 0.8 cm to 2 cm; The distance between the lower edge of the vacant area of the balloon and the hole 20 at the end of the catheter body is 0.5 cm to 3 cm. By setting the length of the sealing bag 2 and the hole 20 at the end of the catheter body and the vacant area of the balloon, the non-surgical side can be effectively adjusted. The ventilation of the lung can also realize the correspondence between the airbag vacancy area and the lung on the operating side, which can not only effectively improve the ventilation effect of the non-operating side lung, but also realize the management of the operating side lung. The specific setting of the value can be matched according to the anatomical value of the human trachea and bronchus. The value is larger for adults and smaller for children.

Further, it also includes a bag body inflating and deflating connecting pipe 5 capable of inflating and deflating the catheter sealing bag 2 and an inflating and deflating air sealing valve 6 adapted to connect with the bag body inflating and deflating connecting pipe 5; the catheter The body end hole 20 is in the shape of an oblique wedge or a flat mouth at the head end of the catheter body 1 .

In the embodiment of the present invention, the catheter sealing bag 2 can be inflated and deflated through the bag inflation and deflation connecting pipe 5 and the inflation and deflation sealing valve 6. The process of inflating and deflating the catheter sealing bag 2 is consistent with the prior art, which is well known to those skilled in the art, and will not be repeated here.

Further, when the end hole 20 of the catheter body is in an oblique wedge shape at the head end of the catheter body 1, the front surface of the inclined plane formed by the end hole 20 of the catheter body and the airbag vacancy area are respectively located on both sides of the catheter body 1;

When the end of the catheter body 20 is in the shape of a flat mouth, a head exhaust hole 25 is provided at the head end of the catheter body 1 , and the head exhaust hole 25 penetrates the pipe wall of the catheter body 1 The vent hole 25 at the head end is located between the lower edge of the catheter sealing bag 2 and the end hole 20 of the catheter body, and the vent hole 25 at the head end and the void area of the balloon are located on both sides of the catheter body 1 respectively.

In the embodiment of the present invention, when the head end of the catheter body 1 is obliquely wedge-shaped, the end hole 20 of the catheter body is consistent with the head end of the existing catheter body 1 , as shown in FIGS. 2 , 5 , 8 , and 9 . , Figure 21 and Figure 22, shows the catheter body end hole 20 at the head end of the catheter body 1 is oblique wedge-shaped situation. A sloped surface 19 can be formed at the head end of the catheter body 1 through the wedge-shaped end hole 20 of the catheter body. Located on both sides of the catheter body 1, specifically, along the direction from the tail end of the catheter body 1 to the head end, the height of the slope surface 19 gradually decreases. The front face of the ramp surface 19 is formed by the cut surface of the arc-shaped opening of the arc-shaped head 66 .

1 , 3 , 4 , 6 , 7 , 10 , 11 and 12 , it is shown that the end hole 20 of the catheter body is in the shape of a flat mouth at the head end of the catheter body 1 , that is, the catheter body The head end of 1 is a straight end face. Compared with the slanted wedge shape of the end hole 20 of the catheter body at the head end of the catheter body 1, the use of the end hole 20 of the catheter body at the head end of the catheter body 1 can effectively reduce the size of the catheter body. The length of 1 further improves the convenience of intubation and other operations.

The opening of the secondary bronchus in the right upper lung is high and very close to the carina. During left lung surgery, right one-lung ventilation is required. The catheter body 1 is placed in the right bronchus, and the curved head 66 can easily block the opening of the secondary bronchus of the right upper lung, which is extremely unfavorable for the ventilation and oxygen supply of the right lung. In order to reduce this adverse effect on the ventilation of the upper lobe bronchus of the right lung, the catheter body 1 is provided with a head-end exhaust hole 25, the head-end exhaust hole 25 passing through the catheter body 1, generally, the head-end exhaust hole 25 and the void area of the balloon are respectively located on both sides of the catheter body 1 , that is, the vent hole 25 at the head end is located on the same side as the bottom of the arc at the head end of the catheter body 1 . The head end vent hole 25 is located between the lower edge of the catheter sealing bag 2 and the end hole 20 of the catheter body. In specific implementation, the number of the head-end exhaust holes 54 provided at the head end of the duct body 1 can be selected according to needs. When the end hole 20 of the catheter body 1 enters the right bronchus, the vent hole 25 at the head end can prevent the opening of the right upper lung bronchus from being blocked, and the vent hole 25 at the head end is used to supply air to the upper lobe bronchus of the right lung , to further improve the reliability of right lung ventilation support in respiratory support. In a specific implementation, the head-end exhaust hole 25 is located on the arc-shaped head 66 . The head end vent 25 is located at the bottom of the arcuate opening of the arcuate head 66 .

As shown in Fig. 25 and Fig. 26 , the catheter breathing connection head includes a joint conduit connecting pipe 22 that can be adapted to connect with the tail end of the catheter body 1 and a joint connection sleeve for adapting to the ventilator/anesthesia machine. 7. The tail end of the conduit body 1 can be sleeved on the joint conduit connecting pipe 22, the joint connecting sleeve 7 can be sleeved on the joint conduit connecting pipe 22, and the joint connecting sleeve 7 can be communicated with the conduit body 1 through the joint conduit connecting pipe 22. , and the joint connecting sleeve 7 can rotate relative to the joint pipe connecting pipe 22 and the pipe body 1 .

In the embodiment of the present invention, the tail end of the conduit body 1 can be sleeved on the joint conduit connecting pipe 22, and after the conduit body 1 is sleeved on the joint conduit connecting pipe 22, the joint of the conduit body 1 and the joint conduit connecting pipe 22 can be ensured. The sealing performance can ensure that the gas will not escape through the joint of the conduit body 1 and the joint conduit connecting pipe 22 . The joint connection sleeve 7 can be adapted to be connected with the ventilator/anesthesia machine, that is, the size, shape, etc. of the joint connection sleeve 7 can be adapted to the ventilator/anesthesia machine, so that the joint connection sleeve 7 can be connected with the ventilator/anesthesia machine. machine connection. The joint connection sleeve 7 can communicate with the catheter body 1 through the joint catheter connection pipe 22 , so that the ventilator/anesthesia function can send gas into the catheter body 1 . In specific implementation, the joint connecting sleeve 7 can rotate relative to the joint conduit connecting pipe 22 , and the joint conduit connecting pipe 22 remains stable after being connected with the conduit body 1 . At this time, the joint connecting sleeve 7 can also rotate relative to the conduit body 1 .

After the catheter body 1 is connected to the ventilator/anesthesia machine through the joint connecting sleeve 7, due to the distorted relationship between the breathing support patient and the ventilator/anesthesia machine, it is easy to cause the catheter body 1 to be twisted, and shear force will be generated, resulting in the catheter body. 1 or bending or displacement of the threaded pipe that is matched with the catheter body 1, or even the catheter body 1 is prolapsed and the breathing circuit is disconnected, resulting in unpredictable complications. In the embodiment of the present invention, after the catheter body 1 is connected to the ventilator/anesthesia machine through the joint connection sleeve 7, if the catheter body 1 is twisted, the catheter body 1 and the joint connection sleeve 7 can be rotated relative to each other to eliminate the catheter The twist on the body 1 will not affect the normal breathing support state through the catheter body 1 during the process of eliminating the twisted state of the catheter body 1 .

Further, the joint conduit connecting pipe 22 is provided with a joint conduit conduit convex ring 26, and a joint conduit conduit groove 60 allowing the joint conduit conduit conduit 22 to be embedded is provided in the pipe wall of the joint conduit conduit 7;

When the joint connecting sleeve 7 is sleeved on the joint connecting pipe 22, the joint connecting pipe 22 is embedded in the joint connecting sleeve groove 60, and the joint connecting pipe convex ring 26 can be embedded in the joint connecting sleeve 7. In the joint connecting sleeve positioning groove 59 , the joint connecting sleeve 7 can be rotated on the joint connecting pipe connecting pipe 22 by the cooperation of the joint connecting pipe connecting pipe convex ring 26 and the joint connecting sleeve positioning groove 59 .

In the embodiment of the present invention, the joint conduit connecting pipe convex ring 26 is protruded on the joint conduit connecting pipe 22 , and the joint conduit connecting pipe convex ring 26 is distributed along the circumferential surface of the joint conduit connecting pipe 22 . A joint connection sleeve groove 60 is provided in the pipe wall of the joint connection sleeve 7 , and the length of the joint connection sleeve groove 60 is smaller than the length of the joint connection sleeve 7 . The joint conduit connecting pipe 22 can extend into the joint connecting sleeve groove 60 , and the joint connecting sleeve groove 60 is in the shape of a ring groove in the joint connecting sleeve 7 . A joint connecting sleeve positioning groove 59 is provided on the inner wall of the joint connecting sleeve groove 60 , and the joint connecting sleeve positioning groove 59 can allow the joint pipe connecting pipe convex ring 26 to be embedded. When the joint conduit connecting pipe convex ring 26 is embedded in the joint connecting casing positioning groove 59, the joint connecting casing 7 can be rotated on the joint conduit connecting pipe 22, that is, the joint connecting casing 7 and the joint conduit connecting pipe 22 can be connected. relative rotation between. Generally, the joint conduit connecting pipe convex ring 26 adopts a clearance fit between the joint connecting casing positioning grooves 59 , that is, the rotation of the joint connecting casing 7 relative to the joint conduit connecting pipe 22 is not affected.

In a specific implementation, a joint connecting casing wall groove 57 is provided on the joint connecting casing 7, and the joint connecting casing wall groove 57 penetrates the joint connecting casing 7. Generally, the joint connecting casing wall groove 57 is positioned with the joint connecting casing. Slot 59 corresponds exactly. The joint connection sleeve positioning groove 59 is annular, while the joint connection sleeve wall groove 57 is in the form of one or more discontinuities. In addition, through the cooperation between the joint connection sleeve 7 and the contact surface of the joint conduit connection pipe 22, the gas in the joint connection sleeve 7 can not pass through the joint connection sleeve groove 60, or through the joint connection sleeve groove 60, the joint The connecting sleeve wall slot 57 escapes. Of course, a sealing ring can also be provided at the joint of the joint connecting sleeve 7 and the joint conduit connecting pipe 22 to further ensure the air tightness in use; The rotation on the joint conduit connection tube 22 is the criterion. The joint conduit connecting tube 22 is also provided with joint conduit connecting tube end plates 58 distributed on opposite sides. The joint conduit connecting tube end plate 58 can conveniently hold the entire conduit breathing connector.

Further, a tooth pad mechanism for propping up the upper incisor and the lower incisor is arranged on the catheter body 1, so as to avoid the occlusion of the catheter body 1 caused by the patient's unintentional occlusion. The tooth pad mechanism can be locked on the catheter body 1 , and when the locked state of the tooth pad mechanism and the catheter body 1 is released, the tooth pad mechanism can move relative to the catheter body 1 on the catheter body 1 .

In the embodiment of the present invention, the tooth pad mechanism is arranged on the catheter body 1. When in use, the tooth pad mechanism is fixed between the patient's upper incisor and lower incisor. The mechanism can support the patient's upper incisors and lower incisors, and ensure that the inner cavity of the catheter body 1 is unobstructed. The tooth pad mechanism can be locked on the catheter body 1, and when locked on the catheter body 1, the stability of the mouth opening can be facilitated. When the position of the catheter body 1 needs to be adjusted, the tooth pad mechanism fixed between the patient's upper incisors and lower incisors does not need to be removed and re-fixed. It is only necessary to release the locked state between the tooth pad mechanism and the catheter body 1. After the body 1 is locked, the tooth pad mechanism and the catheter body 1 can move relative to each other. The relative movement specifically includes the rotation of the catheter body 1 relative to the tooth pad mechanism, or the tooth pad mechanism can be pulled/pushed when the catheter body 1 is set. The catheter body 1 moves. Compared with the connection and cooperation between the existing dental pad and the catheter body 1 , the convenience of adjusting the catheter body 1 can be improved. During the operation, the tooth pad mechanism can also be used to keep the oral cavity open, so that the secretion cleaning tube can be inserted through the mouth to clean the oral secretions of the patient.

In specific implementation, when the operation is completed, the end hole 20 of the catheter body 1 needs to be withdrawn into the main airway, and the catheter body 1 is used to perform double-lung ventilation and breathing support. Specifically, keep the tooth pad mechanism between the patient's upper incisors and lower incisors, release the locked state of the tooth pad mechanism and the catheter body 1, so that the catheter body 1 can move relative to the tooth pad mechanism, and seal the catheter 2 The gas inside is extracted. Pull the catheter body 1 back in the airway by 3cm-5cm, and make the end hole 20 of the catheter body retreat into the main trachea. During the process of pulling the catheter body 1, the patient's teeth can always bite on the tooth pad mechanism. After the catheter body end hole 20 of the catheter body 1 is located in the main trachea, the tooth pad mechanism is locked on the catheter body 1 again, and then the catheter sealing bag 2 is inflated. Lung ventilation, the specific process of double-lung ventilation is consistent with the existing ones, and will not be repeated here. In the process of double-lung ventilation, the wall of the main airway can cooperate with the vacant area of the airbag, so that the vacant area of the airbag is in the shape of a blind hole, which will not affect the double-lung ventilation. The principle and function are consistent.

In addition, when the patient changes the body position, or when the operation side lung and the non-operation side lung are to be changed, that is, the catheter body 1 needs to be placed in different side lungs. Specifically, keep the tooth block mechanism between the patient's upper incisors and lower incisors still, first release the locked state between the tooth block mechanism and the catheter body 1, so that the catheter body 1 can move relative to the tooth block mechanism, and withdraw The catheter seals the gas inside the capsule 2 . Pull the catheter body 1 so that the catheter body end hole 20 of the catheter body 1 is withdrawn from the current bronchus into the main trachea, reposition, turn the catheter body 1 and place the catheter body end hole 20 of the catheter body 1 into another Inside the bronchi of the lateral lung. The catheter body 1 can use conventional technical means to insert the end hole 20 of the catheter body into the desired bronchial opening, or use the curved head 66 of the catheter body 1 to easily enter the desired bronchial opening. After the catheter body 1 is placed in place, the tooth pad mechanism and the catheter body 1 are locked again, and then the catheter sealing bag 2 is inflated. At this time, the desired one-lung ventilation can be performed by using the catheter body 1 . At the same time, during the single-lung ventilation using the catheter body 1, the airbag vacancy area of the catheter body 1 needs to correspond to the bronchial opening of the operating side lung, so that the airbag vacancy area and the operating lung operating tube 13 can be used to perform the required operations on the operating side lung. manage. During the process of pulling the catheter body 1 and rotating the catheter body 1, the patient's teeth can always be engaged on the tooth pad mechanism. Compared with the connection and cooperation between the existing tooth pad and the catheter body 1, the position state of the catheter body 1 can be greatly improved. convenience.

As shown in Fig. 27, Fig. 28, Fig. 29 and Fig. 30, the tooth pad mechanism includes a tooth pad locking connection sleeve 23 that can be fitted over the catheter body 1 and a tooth pad locking connection sleeve 23 that can be fitted over the conduit body 1 and can be connected to the mouth pad. The locking connecting sleeve 23 is adapted to be connected to the locking adjusting connecting pipe 12, and the tooth cushion cover 8 for teeth occlusion is sleeved on the locking adjusting connecting pipe 12;

The inner wall of the locking and adjusting connecting pipe 12 is provided with an inner thread 61 of the adjusting connecting pipe, and the thickness of the pipe wall of the locking adjusting connecting pipe 12 is gradually changed; The external thread 63 of the locking sleeve is adapted, the head end of the tooth pad locking connecting sleeve 23 can extend into the locking adjustment connecting pipe 12 and is tightly connected with the locking adjusting connecting pipe 12, and the tail end of the tooth cushion locking connecting sleeve 23 is divided to form a plurality of connection locking pieces 62;

The relative movement of the locking adjustment connecting tube 12 and the tooth pad locking connecting sleeve 23 makes the connecting locking piece 62 shrink toward the catheter body 1, which can lock the tooth cushion locking connecting sleeve 23 and the catheter body 1 to each other; the locking adjusting connecting tube 12 and the tooth cushion The relative movement of the locking connection sleeve 23 makes the connection locking piece 62 open away from the catheter body 1 , and the locking state of the tooth pad locking connection sleeve 23 and the catheter body 1 can be released.

In the embodiment of the present invention, both the locking adjustment connecting tube 12 and the tooth pad locking connecting sleeve 19 can be sleeved on the catheter body 1, the tooth cushion sleeve 8 is sleeved on the locking adjustment connecting tube 12, and the tooth cushion sleeve 8 is sleeved on the locking adjustment connecting sleeve. After the tube 12 is installed, the tooth pad cover 8 can maintain stability with the locking and adjusting connecting tube 12, that is, the stability of opening the oral cavity can be realized.

The inner wall of the locking and adjusting connecting pipe 12 is provided with an adjusting connecting pipe inner thread 61 , and the thickness of the pipe wall of the locking and adjusting connecting pipe 12 is in a state of gradual change, as shown in FIG. 30 . In FIG. 30 , along the direction from top to bottom, the wall of the locking and adjusting connecting pipe 12 gradually becomes thinner, and the inner thread 61 of the adjusting connecting pipe also follows the wall of the locking and adjusting connecting pipe 12 . The outer wall of the tooth pad locking connecting sleeve 19 is provided with a locking sleeve external thread 63 , and the tooth cushion locking connecting sleeve 19 can be connected and matched with the adjusting connecting pipe internal thread 61 of the locking adjusting connecting pipe 12 through the locking sleeve external thread 63 . The rear end of the tooth pad locking connecting sleeve 19 can form several connecting locking pieces 62 through several locking piece dividing grooves 64 , and each connecting locking piece 62 also has a locking sleeve external thread 63 .

It can be seen from the above description that the change of the inner wall thickness of the locking adjustment connecting tube 12 is used to cooperate with the tooth pad locking connecting sleeve 19 and the connecting locking piece 62, and the relative movement of the locking adjusting connecting tube 12 and the tooth pad locking connecting sleeve 19 can be used to make the tooth pad lock. The connection locking piece 62 of the locking connection sleeve 19 is contracted and pressed on the catheter body 1 , thereby realizing the mutual locking of the tooth pad locking connection sleeve 19 and the catheter body 1 , that is, the mutual locking of the tooth cushion mechanism and the catheter body 1 . When the locking adjustment connecting tube 12 is rotated and the connecting locking piece 62 is pressed on the catheter body 1, the locking state of the tooth pad locking connecting sleeve 19 and the catheter body 1 can be released, that is, the locking of the tooth pad mechanism and the catheter body 1 can be realized. state. In a specific implementation, when the position of the locking adjustment connecting pipe 12 with a larger wall thickness is tightly connected with the connecting locking piece 62 , the connecting locking piece 62 can be pressed against the catheter body 1 .

Further, the tooth cushion cover 8 is provided with a tooth cushion groove 9 that allows teeth to be embedded, and the tooth cushion groove 9 is symmetrically distributed on the tooth cushion cover 8; The sleeve body groove 11 is adapted to the secretion cleaning tube, and the sleeve body groove 11 is located between the two tooth pad grooves 9 on the tooth pad sleeve 8, and the secretion cleaning tube can be placed in the oral cavity through the sleeve body groove 11.

In the embodiment of the present invention, the dental pad cover 8 is generally made of medical silica gel, the dental pad groove 9 is recessed on the dental pad cover 8, the dental pad groove 9 is elliptical, and the length direction of the dental pad groove 9 is the same as the length direction of the teeth. correspond. Generally, two symmetrically distributed sleeve body grooves 11 are arranged on the tooth cushion groove 8, and each sleeve body groove 11 is formed by arranging two tooth cushion sleeve protrusions 10 on the tooth cushion sleeve 8. Provide a space for the secretion cleaning tube, etc., so that the secretion cleaning tube is placed in the oral cavity through the sleeve body groove 11, and the stability and reliability of the secretion cleaning tube during secretion cleaning are improved.

4 , 7 , 8 , 9 and 10 , it also includes a head side vent hole 24 disposed on the head of the catheter body 1 , and the head side vent hole 24 penetrates through the side wall of the catheter body 1 , and the vent hole 24 on the side of the head and the airbag vacancy area are located on the corresponding sides of the catheter body 1, respectively, and the catheter sealing bag 2 wraps the corresponding part of the head of the catheter body 1 except for the airbag vacancy area and the vent hole 24 on the side of the head. Outer wall, the gas in the catheter body 1 can be discharged through the vent hole 24 on the side of the head and the end hole 20 of the catheter body.

In the embodiment of the present invention, the vent hole 24 on the side of the head penetrates the side wall of the duct body 1, that is, the gas in the duct body 1 can be discharged through the vent hole 24 on the side of the head. Generally, the vent hole 24 on the side of the head and The airbag vacancies are located on the corresponding two sides of the catheter body 1 respectively, and the vent holes 24 on the side of the head correspond to the airbag vacancies. It can be seen from the above description that an outer side groove 4 can be formed on the catheter body 1 in the void area of the balloon and the catheter sealing bag 2. Similarly, the vent hole 24 on the side of the head and the catheter sealing bag 2 can also be formed on the catheter body 1. An inner side groove, the inner side groove is corresponding to the outer side groove 4 . In specific implementation, the size of the inner side groove is smaller than the size of the outer side groove 4, which is 0.5cm-1.5cm; at the bottom of the inner side groove, the vent hole 24 on the side of the head can be one or more, specifically It can be selected as required, and details are not repeated here.

When the groove 4 on the lateral side corresponds to the bronchial opening of the operating side lung, the management of the operating side lung can be realized, wherein, when performing secretion clearance, the operating side lung is located on the upper side of the patient, and the operating side bronchial opening is located in the operating side lung. At the lowest point, the secretions from the lung and bronchus on the operating side can be discharged to the bronchial opening on the operating side, and are stored in the lateral groove 4 formed by the airbag vacancy area. in vitro. During the operation, the lung on the operating side does not need to be ventilated, and only the side hole 3 of the catheter needs to be used to supply low-pressure oxygen to the lung on the operating side to increase static oxygenation. The ventilating hole 24 on the side of the head has the same function as the venting hole 25 on the head end, that is, both can ensure the ventilation reliability of the bronchus of the upper lobe of the right lung. Generally, the position of the vent hole 24 on the side of the head on the duct body 1 is similar to the position of the air exhaust 45 on the head end on the duct body 1, that is, only the vent hole 24 on the side of the head or the head end is provided on the duct body 1 The exhaust hole 25 can be specifically selected according to needs.

In the embodiment of the present invention, when a head side vent hole 24 is provided, the diameter of the head side vent hole 24 is generally consistent with the inner diameter of the entire inner side groove, that is, the diameter of the head side vent hole 24 is generally Much larger than the side hole 3 of the catheter.

Further, a video image capturing mechanism capable of capturing the position state of the catheter body 1 in use is also included, the video image capturing mechanism is adapted and connected to the catheter body 1 , and the catheter sealing bag 2 is coated with a marking color.

In the embodiment of the present invention, the position state of the catheter body 1 can be collected by the video image acquisition mechanism, for example, the position state information of the catheter body 1 during intubation and during use can be collected, so as to improve the accuracy of the intubation process and the intubation efficiency. When video image information can also be collected for the position state during use, it can also effectively monitor the entire breathing process. During specific implementation, the catheter body 1 is generally transparent, and the catheter sealing bag 2 is painted with a marking color to avoid the situation that the position of the catheter sealing bag 2 cannot be effectively observed when the existing catheter sealing bag 2 adopts a transparent color.

As shown in FIG. 11 , FIG. 12 , FIG. 13 and FIG. 14 , the video head capture mechanism includes a sampling link 35 that can be embedded in the catheter body 1 and a link video head 27 located at the head end of the sampling link 35 , the length of the sampling link 35 is greater than the length of the catheter body 1; the sampling link 35 can enable the link video head 27 to pass through the end hole 20 of the catheter body, or the sampling link 35 can make the link video The head 27 is withdrawn from the catheter body 1 ; the connecting rod video head 27 can be electrically connected to the connecting rod video output connector 29 through the connecting rod video cable 28 embedded in the sampling connecting rod 35 .

In the embodiment of the present invention, the connecting rod video head 27 is located at the end of the sampling connecting rod 35, and the connecting rod video head 27 can take the form of video image sampling such as the existing commonly used camera, and the specific form can be selected according to needs. Repeat. Generally, the length of the sampling link 35 is greater than the length of the catheter body 1 , so that the link video head 27 can pass through the head end of the catheter body 1 , as shown in FIGS. 11 and 12 . The outer diameter of the sampling connecting rod 35 is generally smaller than the inner diameter of the catheter body 1, and the position of the connecting rod video head 27 can be adjusted through the sampling connecting rod 35. The rod video head 27 is withdrawn from the catheter body 1 .

The main body of the connecting rod video line 28 is embedded in the sampling connecting rod 35, and the connecting rod video output connector 29 is located outside the sampling connecting rod 35, that is, the connecting rod video line 28 has a part outside the sampling connecting rod 35, and the connecting rod video output connection The head 29 can be electrically connected with a video display device, such as a display screen, etc. The specific form of the link video output connector 29 is related to the type of the video display device, such as a USB connector or other commonly used video and image transmission. The connector type can be selected as required, and will not be repeated here.

Further, a video conduit connector is provided at the end of the sampling connecting rod 35, and the conduit breathing connector is detachably connected to the conduit body 1. When the conduit breathing connector is disassembled and separated from the conduit body 1, the video conduit connector is connected to the conduit body 1. The tail end of the video conduit is adapted and connected, and the video conduit connector is detachably connected to the tail end of the conduit body 1;

After the video catheter connector is adapted and connected to the catheter body 1, the sampling connecting rod 35 can be inserted into the catheter body 1; the video catheter connector is communicated with the catheter body 1, and the catheter body 1 can be connected to the ventilator/ Anesthesia machine adapter connection;

The sampling connecting rod 35 includes a plurality of evenly distributed connecting rod pieces 38, and a gas flow groove that allows gas to pass through can be formed between adjacent connecting rod pieces 38; The gas flows under the guidance of the gas flow groove, and can be discharged through the vacant area of the balloon and the hole 20 at the end of the catheter body.

In the embodiment of the present invention, when a video catheter connector is provided at the end of the sampling rod 35, a detachable connection is required between the catheter breathing connector and the catheter body 1, that is, when the sampling rod 35 is placed in the catheter body 1, The catheter connector needs to be separated from the catheter body 1 so that the sampling link 35 is adapted to be connected to the rear end of the catheter body 1 through the video catheter connector. The video conduit connector and the connecting rod video head 27 are located at both ends of the conduit body 1 respectively. Of course, after the video catheter connector is connected to the catheter body 1, the video catheter connector and the catheter body 1 can also be disassembled and separated, so that the catheter breathing connector can be connected and matched with the rear end of the catheter body 1 again, so that the catheter body 1 can be intubated in place. Connection to ventilator/anesthesia machine.

As can be seen from the above description, when the sampling rod 35 is matched with the catheter body 1 , the sampling rod 35 needs to be inserted into the catheter body 1 . In order to achieve the purpose of ventilation during the intubation process, the video catheter connector can communicate with the catheter body 1, and the catheter body 1 can be adapted and connected to the ventilator/anesthesia machine through the video catheter connector.

In specific implementation, the sampling connecting rod 35 has a plurality of evenly distributed connecting rod pieces 38, and the space between the adjacent connecting rod pieces 38 can form a gas flow groove. When the sampling connecting rod 35 is inserted into the catheter body 1, the gas flow groove A gas circulation channel is formed between the inner wall of the catheter body 1, so that the gas sent by the ventilator/anesthesia machine into the catheter body 1 through the video catheter connector can circulate in the catheter body 1 through the gas circulation channel, and can pass through the airbag vacancy. The area and the hole 20 at the end of the catheter body are discharged, that is, the breathing support during the intubation of the catheter body 1 is realized. During the intubation process, the link video head 27 can be used to observe the position state during the intubation process in real time. A rod hole 36 is provided in the sampling link 35 , and the link video cable 28 can be embedded in the sampling link 35 through the rod hole 36 to realize connection and cooperation with the link video head 27 .

As shown in FIGS. 15 , 16 , 17 , 18 , 19 and 20 , the video conduit connection head includes a video connection connecting pipe 34 that can be adapted to the conduit body 1 , and the video connecting connecting pipe 34 An adapted adjustment transition tube 40 and a video vent tube 30 adapted to the adjustment transition tube 40 .

The tail end of the catheter body 1 can be sleeved on the video connection connecting pipe 34, and the inner wall of the adjusting transition connecting pipe 40 is provided with a transition adjusting inner thread 42, and the video ventilation connecting pipe 30 can be adapted and connected with the ventilator/anesthesia machine. The pipe 30 can communicate with the video connection pipe 34 by adjusting the transition pipe 40 , the adjustment transition pipe 40 can rotate relative to the video connection pipe 34 , and the video ventilation pipe 30 can rotate relative to the adjustment transition pipe 40 .

The outer wall of the sampling connecting rod 35 is provided with a connecting rod outer thread 37 that can be adapted to the transition adjustment inner thread 42 . Enter into the catheter body 1; the position state of the sampling rod 35 in the catheter body 1 can be adjusted through the cooperation between the outer thread 37 of the connecting rod and the inner thread 42 of the transition adjustment.

In the embodiment of the present invention, the video connection connecting pipe 34 can be connected with the tail end of the catheter body 1, and the tail end of the catheter body 1 can be sleeved on the video connection connecting pipe 34. It can be seen from the above description that the catheter body 1 is sleeved on the video connection connecting pipe 34. After the video connection connecting pipe 34 is attached, the catheter body 1 and the video connection connecting pipe 34 can be disassembled and separated, so as to facilitate the subsequent reconnection and cooperation between the catheter body 1 and the catheter breathing connector.

The inner wall of the adjustment transition connecting pipe 40 has a transition adjustment inner thread 42, which can be connected with the ventilator/anesthesia machine through the video ventilation connecting pipe 30, that is, the size, shape, etc. Adaptation to meet the needs of connecting with ventilator/anesthesia machine. The video ventilation connecting pipe 30 can be communicated with the video connecting connecting pipe 34 by adjusting the transition connecting pipe 40, so that when the video connecting connecting pipe 34 is connected with the catheter body 1, the video ventilation connecting pipe 30 can be communicated with the catheter body 1. After the tube 30 is adapted and connected to the ventilator/anesthesia machine, the ventilator/anesthesia machine can deliver the required gas into the catheter body 1 through the video ventilation connecting tube 30, the adjusting transition connecting tube 40 and the video connecting connecting tube 34. During specific implementation, the adjustment transition connecting pipe 40 and the video connecting connecting pipe 34 can rotate relative to each other, and the video ventilation connecting pipe 30 and the adjusting transition connecting pipe 40 can also rotate relative to each other.

A connecting rod external thread 37 is provided on the outer wall of the sampling connecting rod 35 , and the connecting rod external thread 37 can be adapted to the transition adjustment internal thread 42 . During specific implementation, a connecting rod external thread can be set in the area at the tail of the sampling connecting rod 35 37. The fine adjustment of the position of the sampling connecting rod 35 can be realized by cooperating with the outer thread 37 of the connecting rod and the inner thread 42 of the transition adjustment. Since the adjusting transition connecting pipe 40 can rotate relative to the video connecting connecting pipe 34, when the transition adjusting connecting pipe 40 is rotated, the rotation of the adjusting transition connecting pipe 40 relative to the video connecting connecting pipe 34 can be driven, so that the sampling link 35 can be adjusted in the conduit. Fine-tuning of position within body 1.

During specific implementation, a video ventilation wire body side pipe 31 is also provided on the video ventilation connection pipe 30, the video ventilation wire body side pipe 31 is communicated with the video ventilation connection pipe 30, and the video ventilation wire body side pipe 31 is located in the video ventilation connection pipe 31. One side of the tube 30, and the length direction of the video ventilation wire body side tube 31 and the video ventilation connecting tube 30 are perpendicular to each other. A side tube positioning sealing body 41 is provided in the video ventilation wire body side tube 31 . The connecting rod video output connector 29 is located outside the video ventilation connecting pipe 30, that is, the connecting rod video line 28 passes through the side pipe 31 of the video ventilation line body, and the side pipe is used to locate the sealing body 41 to realize the connection between the connecting rod video line 28 and the video ventilation line. The body-side tube 31 is sealed.

In order to realize the rotation of the video ventilation connection pipe 30 relative to the adjustment transition connection pipe 40, the video ventilation connection pipe 30 is connected and matched with the adjustment transition connection pipe 40 by connecting the first ring body 32 by rotation; similarly, the adjustment transition connection pipe 40 is connected by rotation. The second ring body 33 is connected and matched with the video connection connecting pipe 34 . Specifically, the rotationally connected first ring body 32 and the rotationally connected second ring body 33 adopt the same structural form. The video ventilation tube 30 is provided with a ventilation tube lumen 28 , a video ventilation tube ring groove is set on the ventilation tube lower body 31 at the lower part of the video ventilation tube 30 , and the outer diameter of the ventilation tube lower body 31 is smaller than the video ventilation tube 30 . The outer diameter of the upper part. A first groove 44 for rotating connection is arranged on the upper part of the adjustment transition connecting pipe 40 , the lower part of the video ventilation connecting pipe 30 can be embedded in the adjusting transition connecting pipe 40 , and the video ventilation connecting pipe 30 is embedded in the adjusting transition connecting pipe 40 after the video ventilation connecting pipe 30 is embedded in the adjusting transition connecting pipe 40 , the annular groove of the video ventilation pipe can be directly corresponding to the first groove 44 of the rotary connection.

The specific structure of rotationally connecting the first ring body 32 and rotationally connecting the second ring body 33 is shown in FIG. 12 . Specifically, it includes a ring body 49 , which is arc-shaped and has a ring shape at both ends of the ring body 49 . Body end grooves 51 , the annular body end grooves 51 are located on the outer side of the annular body 49 , and there are annular body steps 50 on the inner sides of both ends of the annular body 49 . The annular body 49 can be embedded in the first groove 44 of the rotatable connection, and at the same time embedded in the annular groove of the fitting vent connecting pipe. The first groove 44 for rotating connection is arc-shaped, and the arc length of the first groove 44 for rotating connection is slightly larger than the arc length for the annular body 49, so that the annular body 49 can use the end groove 51 of the annular body to connect with the two parts of the first groove 44 for rotating connection. End connection, and can prevent the annular body 49 from being separated from the first groove 44 of the rotary connection, the annular body 49 can be embedded in the annular groove of the matching ventilation connecting pipe by the annular body step 50, so as to make the video ventilation connecting pipe 38 and the adjustment transition transition The connecting pipe 40 can rotate around the annular body 49 to realize the relative rotation between the video ventilation connecting pipe 38 and the adjusting transition connecting pipe 40 .

A second groove 45 for rotating connection is provided at the lower part of the adjusting transition connecting pipe 40, and the second groove 45 for rotating connecting passes through the pipe wall of the adjusting transition connecting pipe 40. Of course, the first groove 44 for rotating connecting also passes through the corresponding pipe of the adjusting transition connecting pipe 40. wall. The end of the video connection pipe 34 can extend into the adjustment transition pipe 40. The video connection pipe 34 is provided with a video connection pipe rotation positioning groove 46, and the video connection pipe rotation positioning groove 46 is in the shape of a ring groove. When the video connection pipe 34 is embedded in the adjustment transition pipe 40, the rotation positioning groove 46 of the video connection pipe can be directly corresponding to the second groove 45 of the rotation connection, so that the second ring body 33 can be connected with the rotation of the second ring body 33 by the rotation connection. The groove 45 and the video connection connecting pipe rotation positioning groove 46 are matched, so that the adjusting transition connecting pipe 40 and the video connecting connecting pipe 34 can rotate around the rotating connection second ring body 33, so as to realize the adjustment between the transition connecting pipe 40 and the video connecting connecting pipe 34. The relative rotation of the second ring body 33 and the connection and cooperation process of the rotational connection of the second ring body 33 can be referred to the above description, which will not be repeated here.

In specific implementation, the video connection connecting pipe inner limit block 48 is arranged in the video connection connecting pipe 34 , and the sampling link 35 can be limited by using the video connecting connecting pipe inner limit block 48 . The video connection connection pipe 34 is also provided with a video connection connection pipe end plate 47. The video connection connection pipe end plate 47 is symmetrically distributed on the outer wall of the video connection connection pipe 34. Through the video connection connection pipe end plate 47, the conduit body 1 can be connected to the The connection limit between the video connection pipes 34 can also facilitate the holding of the video connection pipes 34 .

As shown in FIG. 21 , FIG. 22 , FIG. 23 and FIG. 24 , the video image acquisition mechanism includes a wire body video head 54 located in the lumen of the catheter body 1 and a connecting wire body electrically connected to the wire body video head 54 52. In the tube wall of the catheter body 1, a tube body wire hole that allows the connecting wire body 52 to pass through is provided, and the tube body wire hole and the airbag vacancy area are respectively located on the two sides corresponding to the catheter body 1; the connecting wire body 52 is also electrically connected to the line body video connector 53, which is located outside the catheter body 1; when the connecting line body 52 is pulled, the position of the line body video head 54 in the catheter body 1 can be adjusted.

In the embodiment of the present invention, a tube body wire hole is provided in the tube wall of the catheter body 1, and the tube body wire hole allows the connection wire body 52 to pass through, and the wire body video connector 53 is located outside the catheter body 1. Therefore, the connection wire The main part of the body 52 is located in the tube wall of the catheter body 1 through the tube body wire hole, and the part of the connecting wire body 52 located outside the tail end of the catheter body 1 is electrically connected with the wire body video connector 53, and the length of the tube body wire hole is smaller than that of the catheter. The length of the body 1, the wire hole of the tube body and the void area of the balloon are on different sides of the catheter body 1. In specific implementation, the linear video head 54 can be located outside the side hole 3 of the catheter in the catheter body 1, that is, the linear video head 54 is located between the side hole 3 of the catheter and the end hole 20 of the catheter body. The head 54 enables video and image capture of information in front of the catheter body end bore 20. For the specific situation of the line-body video connector 53, reference may be made to the description of the link video output connector 29, which will not be repeated here. Of course, during the specific implementation, the position of the linear video head 54 can be selected as required, and the purpose of capturing video and images within the required range is the criterion, which is well known to those skilled in the art and will not be repeated here.

Of course, a structure for limiting the position of the linear video head 54 can also be arranged in the catheter body 1 to prevent the linear video head 54 from being far from the side hole 3 of the catheter. By pulling the connecting wire body 52, the linear video head can also be 54 is directly corresponding to the side hole 3 of the catheter, so as to collect video and image information of the part corresponding to the side hole 3 of the catheter. Specifically, a base guide limiting groove 56 is provided in the catheter body 1, and the video head base 55 of the line body video head 54 can be adapted to the base guide limit groove 56, so that the line body video head 54 is installed through the video head base 55 on the In the base guide limit groove 56, the video head base 55 can move in the base guide limit groove 56. The length of the base guide limit groove 56 cooperates with the video head base 55, so that the linear video head 54 can be installed in the conduit body 1. limit within. When the linear video head 54 is installed in the catheter body 1 through the video head base 55 , the linear video head 54 is generally attached to the inner wall of the catheter body 1 .

When the video image capture mechanism adopts the sampling link 35 to cooperate with the video head 27 of the link, the video head capture mechanism can be reused, that is, the cooperation with different catheter bodies 1 can be realized. When the video image acquisition mechanism adopts the line video head 54 to cooperate with the connecting line body 52, the line video head 54 is always located in the catheter body 1 after the catheter body 1 is intubated, that is, the line body video head 54 is generally Cannot be reused.

In addition, a fixed camera can also be embedded inside the arc of the tip end of the catheter body 1, and the camera head can be wrapped by the catheter sealing bag 2, so as to avoid the contamination of the surface of the camera caused by blood and the like during intubation and use, and improve the imaging performance. Process stability and reliability. The fixed camera can be in the lower edge of the catheter sealing bag 2, or in the outer ring of the catheter sealing bag 2 adjacent to the vacancy area of the balloon, as long as the required range during the intubation process of the catheter body 1 and the use after intubation can be effectively achieved. Both video capture and image capture are available.

Of course, in the specific implementation, the video image acquisition mechanism can also adopt other structural forms, as long as the video image acquisition needs of the catheter body 1 during the intubation process and after the intubation can be achieved. The needs of the personnel are selected and determined, which will not be repeated here.

Claims (13)

1. A single-chamber single-sac tracheal catheter that can easily implement single and double-lung ventilation, comprising a catheter body (1) and a catheter breathing connector that is arranged at the tail end of the catheter body (1), in the catheter body (1) The head end has a catheter body end hole (20), and the catheter body end hole (20) can communicate with the catheter breathing connector through the lumen of the catheter body (1); A catheter sealing bag (2) is provided on the outer wall, and the catheter sealing bag (2) is connected and communicated with a bag body inflating and deflating connecting pipe (5) capable of inflating and deflating the catheter sealing bag (2). An inflating and deflating sealing valve (6) is arranged at the end of the air bag inflation and deflation connecting pipe (5); it is characterized by: It also includes a balloon vacancy area arranged on the head of the catheter body (1), the catheter sealing bag (2) annularly wraps the corresponding outer wall except the balloon vacancy area on the catheter body (1), and the balloon vacancy area is located in the guide, The length of the catheter sealing bag (2) is greater than the length of the void area of the airbag, and the void area of the airbag is located between the corresponding upper edge and the lower edge of one side of the catheter sealing bag (2); The lower edge of the catheter sealing bag (2) is located between the airbag vacancy area and the end hole (20) of the catheter body, and after the catheter sealing bag (2) is inflated and inflated, the inflated catheter sealing bag (2) and the airbag vacancy area can be used for energy. An annular cylindrical balloon having a lateral groove (4) on the side of the catheter body (1) is formed at the head, and the lateral groove (4) formed through the void area of the balloon is located in the middle and upper part of one side of the annular cylindrical balloon; A plurality of catheter side holes (3) are provided on the tube wall of the catheter body (1) corresponding to the void area of the balloon, the catheter side holes (3) are isolated from the lumen in the catheter body (1), and the balloon The side hole (3) of the catheter in the vacant area is communicated with the surgical lung operation tube (13) which can be embedded in the catheter body (1), and can be connected with the respiratory support mechanism through the surgical lung operation joint on the surgical lung operation tube (13). And/or the negative pressure suction mechanism is adapted and connected, and the surgical lung operation joint is sealedly connected with the end of the surgical lung operation tube (13) located outside the catheter body (1). 2. The single-lumen single-sac tracheal catheter according to claim 1, characterized in that: the catheter body comprises a pipe main body (65) and is connected to the pipe main body (65). The arc-shaped head (66) is in communication with the tube main body (65), and the junction of the arc-shaped head (66) and the tube main body (65) is located in the catheter sealing bag In the middle of (2), the included angle α between the axis of the main body part (65) and the axis of the arc head (66) is 15° to 45°; the airbag vacancy area and the arc opening bottom of the arc head (66) They are respectively located on the corresponding two sides of the catheter body (1). 3. The single-chamber single-sac tracheal catheter according to claim 1 or 2, characterized in that: the lower edge of the catheter sealing bag (2) and the catheter body end hole (20) The distance between them is 0.5cm-1.5cm; the distance between the lower edge of the vacant area of the balloon and the hole (20) at the end of the catheter body is 0.5cm-3cm. 4. The single-chamber single-bag tracheal catheter according to claim 1 or 2, characterized in that: the length of the balloon vacancy area along the length direction of the catheter body (1) is 0.5cm～3cm ; The length of the void area of the balloon along the longitudinal direction of the vertical catheter body (1) is 0.25 times to 0.5 times the outer circumference of the catheter body (1). 5. The single-chamber single-sac tracheal catheter according to claim 2, characterized in that: the surgical lung operation joint comprises a breathing operation interface (14) communicated with the surgical lung operation tube (13). ), the suction operation interface (15) and the joint sealing mechanism that can be adapted with the breathing operation interface (14) and the suction operation interface (15), and can be connected with the breathing support mechanism through the breathing operation interface (14). The interface (15) can be adapted and connected with the negative pressure suction mechanism; The joint sealing mechanism comprises a breathing operation interface head (16) capable of sealing the breathing operation interface (14) and a suction operation interface head (18) capable of sealing the suction operation interface (15). 6. The single-chamber single-sac tracheal catheter according to claim 1, characterized in that: the end hole (20) of the catheter body is set to be inclined at the head end of the catheter body (1). Wedge-shaped opening or flat-shaped opening; When the end hole (20) of the catheter body is set as an oblique wedge-shaped opening, the slope surface formed by the oblique wedge-shaped opening is located on the catheter body (1) in the opposite side of the airbag vacancy area; When the end hole (20) of the catheter body is provided with a flat opening, a head end exhaust hole (25) is provided at the head end of the catheter body (1), and the head end exhaust hole (25) is located in the catheter sealing bag (2). ) and the end hole (20) of the conduit body, the head exhaust hole (25) penetrates the corresponding pipe wall of the conduit body (1), and the head exhaust hole (25) is in the conduit body (1) It is located on the opposite side of the airbag void area. 7. The single-chamber single-sac tracheal catheter according to claim 1, wherein the single-chamber single-sac tracheal catheter according to claim 1 is characterized in that: said catheter breathing connection head comprises a joint that can be fitted and connected with the tail end of the catheter body (1). The conduit connecting pipe (22) and the joint connecting sleeve (7) for adapting and connecting with the ventilator/anesthesia machine, the tail end of the conduit body (1) can be sleeved on the joint conduit connecting pipe (22), and the joint connecting sleeve The pipe (7) can be sleeved on the joint conduit connecting pipe (22), the joint connecting sleeve (7) can be communicated with the conduit body (1) through the joint conduit connecting pipe (22), and the joint connecting sleeve (7) can be connected with the conduit body (1). The joint pipe connecting pipe (22) and the pipe body (1) rotate relatively. 8. The single-chamber single-sac tracheal catheter according to claim 7, which is characterized in that: a joint catheter-connecting tube convex ring (26) is provided on the joint catheter-connecting pipe (22). A joint connecting sleeve groove (60) allowing the joint conduit connecting pipe (22) to be embedded is arranged in the pipe wall of the joint connecting sleeve (7); when the joint connecting sleeve (7) is sleeved on the joint conduit connecting pipe (22) , the joint conduit connecting pipe (22) is embedded in the joint connecting casing groove (60), and the joint conduit connecting pipe convex ring (26) can be embedded in the joint connecting casing positioning groove in the joint connecting casing (7) In (59), the joint connecting sleeve (7) can be rotated on the joint conduit connecting pipe (22) by the cooperation of the joint conduit connecting pipe convex ring (26) and the joint connecting sleeve positioning groove (59). 9. The single-chamber single-sac tracheal catheter according to claim 1, characterized in that: a tooth pad mechanism for opening the oral cavity is provided on the catheter body (1), and the The tooth pad mechanism can be locked on the duct body (1), and when the locked state of the tooth pad mechanism and the duct body (1) is released, the duct body (1) and the tooth pad mechanism can move relatively. 10. The single-chamber single-sac tracheal catheter according to claim 9, characterized in that: the tooth pad mechanism comprises a tooth pad locking connecting sleeve ( 23) and a locking adjustment connecting pipe (12) that can be sleeved on the catheter body (1) and can be fitted and connected with the tooth pad locking connecting sleeve (23), and sleeved on the locking adjustment connecting pipe (12) There is a mouthpiece (8) for occlusal teeth; An adjustment connecting pipe internal thread (61) is arranged on the inner wall of the locking adjustment connecting pipe (12), and the thickness of the pipe wall of the locking adjusting connecting pipe (12) changes gradually; on the outer wall of the tooth pad locking connecting sleeve (23) A locking sleeve external thread (63) that can be adapted to the inner thread (61) of the adjusting connecting pipe is provided, and the head end of the tooth pad locking connecting sleeve (23) can be inserted into the locking adjusting connecting pipe (12) and connected with the locking adjusting connecting pipe (12) Fastening the connection, the rear end of the tooth pad locking connection sleeve (23) is divided to form a plurality of connection locking pieces (62); The relative movement of the locking adjustment connecting tube (12) and the tooth pad locking connecting sleeve (23) causes the connecting locking piece (62) to shrink toward the duct body (1), so that the tooth pad locking connecting sleeve (23) and the duct body (1) can be locked together. ) lock each other; the relative movement of the locking adjustment connecting pipe (12) and the tooth pad locking connecting sleeve (23) makes the connecting locking piece (62) open away from the catheter body (1), the tooth cushion locking connecting sleeve (23) and the catheter can be released. The locked state of the body (1). 11. The single-chamber single-sac tracheal catheter according to claim 10, characterized in that: a tooth-pad groove (9) allowing teeth to be embedded is provided on the tooth-pad cover (8), The tooth cushion grooves (9) are symmetrically distributed on the tooth cushion cover (8); at least one sleeve body groove (11) that can be adapted to the secretion cleaning tube is also arranged on the tooth cushion cover (8), and the The sleeve body groove (11) is located between the two tooth cushion grooves (9) on the tooth cushion sleeve (8), and the secretion cleaning tube can be placed in the oral cavity through the sleeve body groove (11). 12. The single-chamber single-sac tracheal catheter according to claim 1, characterized in that it further comprises a video image acquisition mechanism capable of collecting the position state of the catheter body (1) when in use, the video The image acquisition mechanism is adapted and connected to the catheter body (1); The video head capture mechanism includes a sampling link (35) that can be embedded in the catheter body (1) and a link video head (27) located at the head end of the sampling link (35), and the sampling link ( The length of 35) is greater than the length of the catheter body (1); the connecting rod video head (27) can be passed through the end hole (20) of the catheter body through the sampling connecting rod (35), or the sampling connecting rod (35) The connecting rod video head (27) can be withdrawn from the catheter body (1); the connecting rod video head (27) can be connected with the connecting rod video cable (28) through the connecting rod video line (28) embedded in the sampling connecting rod (35). The output connector (29) is electrically connected; A video conduit connector is provided at the end of the sampling connecting rod (35). The conduit breathing connector is detachably connected to the conduit body (1). When the conduit breathing connector is disassembled and separated from the conduit body (1), the video conduit connector is connected to The tail end of the conduit body (1) is adapted and connected, and the video conduit connector is detachably connected to the tail end of the conduit body (1); After the video conduit connector is adapted and connected to the conduit body (1), the sampling connecting rod (35) can be inserted into the conduit body (1); the video conduit connector is communicated with the conduit body (1), and the conduit body (1) It can be connected with the ventilator/anesthesia machine through the video catheter connector; The sampling connecting rod (35) includes a plurality of evenly distributed connecting rod pieces (38), and a gas flow groove for allowing gas to pass through can be formed between adjacent connecting rod pieces (38); the gas enters the duct body ( 1), the gas in the catheter body (1) flows under the guidance of the gas flow groove, and can be discharged through the void area of the balloon and the hole (20) at the end of the catheter body. 13. The single-chamber single-sac tracheal catheter according to claim 10, characterized in that: the video image acquisition mechanism comprises a linear video head (1) located in the lumen of the catheter body (1). 54) and a connecting wire body (52) electrically connected to the wire body video head (54), a tube body wire hole allowing the connecting wire body (52) to pass through is provided in the tube wall of the conduit body (1) , the wire hole of the tube body and the void area of the airbag are respectively located on the two sides corresponding to the catheter body (1); the connecting wire body (52) is also electrically connected with the wire body video connector (53), which is (53) is located outside the catheter body (1); when the connecting cable body (52) is pulled, the position of the cable body video head (54) in the catheter body (1) can be adjusted.

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