CN111265751A - Single-cavity single-bag single-double-lung ventilation catheter - Google Patents

Abstract

The invention relates to a single-cavity single-bag single-double-lung ventilation catheter, which comprises a catheter body and a catheter breathing connector arranged at the tail end of the catheter body, wherein the head part of the catheter body is provided with a catheter side ventilation part and a catheter bag body matched with the catheter side ventilation part, the catheter side ventilation part is communicated with a cavity in the catheter body, and the catheter side ventilation part is positioned on the inner side of the arc-shaped head end of the catheter body; the catheter balloon body is positioned at the head part of the catheter body and wraps the corresponding outer wall except the side vent part of the catheter at the head part of the catheter body; the length direction of the catheter balloon body is consistent with that of the catheter body, the length of the catheter balloon body is larger than that of the side vent part of the catheter, the side vent part of the catheter is located between two ends of the catheter balloon body, and the lower edge of the catheter balloon body is located between the side vent part of the catheter and the end hole of the catheter body. The invention can effectively provide the stability and reliability of ventilation of single lung and double lungs, and is convenient to use.

Description

Single-lumen, single-capsule, single- and double-lung ventilation catheter

technical field

The invention relates to a tracheal catheter, in particular to a single-chamber, single-bag, single-double-lung ventilation catheter, 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 suction 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 the respiratory management and suction operation. 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; the operation side lung cannot be sucked; when the operation side lung needs to be inflated, the bronchus needs to be The gas in the airbag of the occluder is discharged, and the operation side lung is inflated through the single-lumen tube, which will cause the blood or secretions in the operation side lung bronchi to flow into the main trachea, resulting in contamination of the non-operation 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 the operation and needs respiratory support, the single lumen tracheal tube used in conjunction with the tracheal tube needs to use a subglottic sputum suction tracheal tube, which increases the cost 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 short, there is a lack of a simple, effective, safe and practical one-lung ventilation management tool that can effectively exhaust and inflate the surgical side of the lung during surgery, and does not require extubation and intubation when breathing support is required at the end of the operation.

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, single-double-lung ventilation catheter, which has a compact structure and can effectively perform management operations of exhausting and expanding the operating side lung during surgery, and then The purpose of double-lung ventilation can be achieved, the stability and reliability of double-lung ventilation can be improved, and the operation and use are convenient.

According to the technical solution provided by the present invention, the single-lumen, single-bag, single-double-lung ventilation catheter includes a catheter body and a catheter breathing connector disposed at the tail end of the catheter body, and a catheter body is provided at the head end of the catheter body an end hole, the end hole of the conduit body can communicate with the conduit breathing connector through the conduit body;

A catheter side vent portion and a catheter balloon adapted to the catheter side vent portion are provided at the head of the catheter body, the catheter side vent portion is communicated with the cavity in the catheter body, and the catheter The side vent is located at the inner side of the arc-shaped head end of the catheter body;

The catheter balloon is located at the head of the catheter body, and the catheter balloon wraps the corresponding outer wall at the head of the catheter body except for the ventilation part on the side of the catheter; the length direction of the catheter balloon is consistent with the length direction of the catheter body, and the catheter The length of the balloon body is greater than the length of the side vent portion of the catheter, and the side vent portion of the catheter is located between the two ends of the catheter balloon body, and the lower edge of the catheter balloon body is located between the side vent portion of the catheter and the end hole of the catheter body;

A tooth pad mechanism for opening the oral cavity is arranged on the catheter body, and the tooth pad mechanism can be locked on the catheter body; 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 side vent portion of the duct includes one or more side vent holes, and the side vent holes pass through the corresponding side wall of the duct body;

It also includes a balloon inflation and deflation connecting pipe capable of inflating and deflating the catheter balloon, and an inflation and deflation sealing valve adapted and connected to the balloon inflation and deflation connecting pipe; the hole at the end of the catheter body is in the catheter body. The head end is oblique wedge-shaped or flat-mouthed.

When the end hole of the duct body is in an oblique wedge shape at the head end of the duct body, the slope formed by the end hole of the duct body is located on the same side of the duct body as the vent portion on the side of the duct body;

When the end hole of the catheter body is flat at the head end of the catheter body, a head exhaust hole is provided at the head end of the catheter body, the head exhaust hole penetrates the pipe wall of the catheter body, and the head exhaust hole It is located between the lower edge of the catheter balloon and the end hole of the catheter body, and the air vent at the head end and the side ventilation part of the catheter are located on the same side of the catheter body.

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;

When the joint connection sleeve is sleeved on the joint conduit connection pipe, the joint conduit connection pipe is embedded in the joint connection sleeve groove, and the joint conduit connection pipe convex ring can be embedded in the joint connection sleeve positioning groove in the joint connection sleeve. , The joint connecting sleeve can be rotated on the connecting pipe of the joint by using the cooperation between the convex ring of the connecting pipe of the joint and the positioning groove of the connecting sleeve of the joint.

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.

It also includes a video image acquisition mechanism capable of acquiring the position state of the catheter body when it is in use, the video image acquisition mechanism is adapted and connected with the catheter body, and the catheter balloon body is coated with a marking color.

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 downward, and can be discharged through the vent on the side of the catheter and the hole at the end of the catheter body.

The video conduit connection head includes a video connection connecting pipe that can be adapted to the conduit body, an adjustment transition connecting pipe that can be adapted to the video connection connecting pipe, and a video ventilation connecting pipe that is adaptable to the adjusting transition connecting pipe;

The tail end of the catheter body can be sleeved on the video connection tube, and the inner wall of the adjustment transition tube is set with a transition adjustment inner thread. The video ventilation tube can be adapted to connect with the ventilator/anesthesia machine. The video ventilation tube can be adjusted through the transition connection. The pipe can be communicated with the video connection pipe, the adjustment transition pipe can rotate relative to the video connection pipe, and the video ventilation pipe can rotate relative to the adjustment transition pipe;

The outer wall of the sampling connecting rod is provided with a connecting rod outer thread that can be adapted to the transition adjustment inner thread. The outer thread cooperates with the transition adjustment inner thread, which can adjust the position state of the sampling rod in the catheter body.

The advantages of the invention are as follows: the tail end of the catheter body is connected and matched with the catheter breathing connector, the side ventilation part of the catheter is communicated with the cavity in the catheter body, and the side ventilation part of the catheter is located inside the arc-shaped head end of the catheter body; The head of the catheter body wraps the corresponding outer wall except the side vent part of the catheter; the side vent part of the catheter is located between the two ends of the catheter balloon, and the lower edge of the catheter balloon is located between the side ventilation part of the catheter and the end hole of the catheter body Therefore, the gas in the catheter body can be discharged at the same time by using the ventilation part on the side of the catheter and the hole at the end of the catheter body. When the ventilation part on the side of the catheter corresponds to the bronchial opening of the lung on the operating side, the lung on the operating side can be effectively discharged during the operation. The management operation of gas and inflation can then achieve the purpose of double-lung ventilation, improve the stability and reliability of double-lung ventilation, and is easy to operate and use.

Description of drawings

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

FIG. 2 is a cross-sectional view corresponding to the tracheal tube of FIG. 1 .

FIG. 3 is a schematic diagram of the cooperation of the video image acquisition mechanism using the sampling link and the catheter body according to the present invention.

FIG. 4 is a cross-sectional view of the mating in FIG. 3 .

FIG. 5 is a schematic diagram of the video image acquisition mechanism in FIG. 3 .

FIG. 6 is a specific enlarged view of the sampling connecting rod of the present invention.

FIG. 7 is a perspective view of the video conduit connector of the present invention.

Figure 8 is a cross-sectional view of the video conduit connector of the present invention.

FIG. 9 is a perspective view of the video ventilation connecting pipe of the present invention.

Fig. 10 is a perspective view of the adjusting transition connecting pipe of the present invention.

FIG. 11 is a perspective view of the video connection pipe of the present invention.

FIG. 12 is a perspective view of the first ring body rotatably connected according to the present invention.

FIG. 13 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. 14 is a cross-sectional view of the mating in FIG. 13 .

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

Fig. 16 is a cross-sectional view of the linear video head of the present invention in the catheter body.

FIG. 17 is a schematic diagram showing the positions of the linear video head in the catheter body and the vent portion on the side of the catheter according to the present invention.

FIG. 18 is a schematic view of the present invention when the end hole of the catheter body is in an oblique wedge shape at the head end of the catheter body.

Fig. 19 is a schematic diagram of the arrangement of the head-end exhaust hole on the catheter body of the present invention.

Fig. 20 is a schematic view of the end hole of the catheter body in the shape of a flat mouth at the head end of the catheter body according to the present invention.

Figure 21 is a perspective view of the catheter breathing connector of the present invention.

Figure 22 is a cross-sectional view of the catheter breathing connector of the present invention.

Figure 23 is a perspective view of the tooth pad mechanism of the present invention.

Fig. 24 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. 25 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 26 is a cross-sectional view of the locking adjustment coupling of the present invention.

Description of reference numerals: 1- catheter body, 2- catheter balloon, 3- side vent hole, 4- inflation and deflation sealing valve, 5- balloon inflation and deflation connecting pipe, 6- locking adjustment connecting pipe, 7- Joint connection sleeve, 8- tooth cushion sleeve, 9- tooth cushion sleeve, 10- tooth cushion sleeve protrusion, 11- sleeve body groove, 12- joint pipe connecting pipe convex ring, 13- joint pipe connecting pipe, 14- connecting pipe Rod Video Head, 15-Sampling Link, 16-Link Video Output Connector, 17-Link Video Cable, 18-Video Ventilation Connector, 19-Tooth Block Locking Connector, 20-Adjust Transition Connector, 21- Video connection connecting pipe, 22-video ventilation line body side pipe, 23-rotating connection to the first ring body, 24-rotating connection to the second ring body, 25-connecting rod external thread, 26-connecting rod piece, 27-connecting rod hole , 28-ventilation connecting tube lumen, 29-side tube positioning sealing body, 30-transition adjustment inner thread, 31-ventilating connecting tube lower body, 32-rotating connection first groove, 33-rotating connection second groove, 34-joint Connection casing wall groove, 35-Video connection connection pipe end plate, 36-Video connection connection pipe rotation positioning groove, 37-Video connection connection pipe inner limit block, 38-Annular body, 39-Annular body end groove, 40-Annular Body step, 41-connecting line body, 42-line body video connector, 43-line body video head, 44-base guide limit slot, 45-head exhaust hole, 46-joint connection sleeve positioning slot, 47 -Joint conduit connecting pipe end plate, 48-Slope surface, 49-Joint connecting sleeve groove, 50-Adjusting connecting pipe internal thread, 51-Connecting locking piece, 52-Locking sleeve external thread, 53-Locking piece dividing groove and 54- Catheter body end hole and 55-video head base.

Detailed ways

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

In order to effectively ensure the ventilation state of the right lung and improve the convenience of use, the present invention includes a catheter body 1 and a catheter breathing connector disposed at the tail end of the catheter body 1, and a catheter is provided at the head end of the catheter body 1 Body end hole 54, the catheter body end hole 54 can communicate with the catheter breathing connector through the catheter body 1;

On the head of the catheter body 1, a catheter side vent portion and a catheter balloon 2 adapted to the catheter side vent portion are provided, and the catheter side vent portion is communicated with the cavity in the catheter body 1, And the side ventilation part of the catheter is located inside the arc-shaped head end of the catheter body 1;

The catheter balloon 2 is located at the head of the catheter body 1, and the catheter balloon 2 wraps the corresponding outer wall at the head of the catheter body 1 except for the side vent portion of the catheter; the length direction of the catheter balloon 2 is the same as that of the catheter body 1. The length direction is consistent, the length of the catheter balloon 2 is greater than the length of the side vent portion of the catheter, and the side vent portion of the catheter is located between the two ends of the catheter balloon 2, and the lower edge of the catheter balloon 2 is located between the side vent portion of the catheter and the catheter. Between the holes 54 at the end of the catheter body.

Specifically, the catheter body 1, the catheter breathing connector and the catheter balloon body 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 existing specifications. selection, which 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 . Of course, after the catheter breathing connector is connected to the tail end of the catheter body 1 , the sealing ability of the connection between the catheter body connector and the tail end of the catheter body 1 can be ensured. The end hole 54 of the catheter body is located at the head end of the catheter body 1, and the end hole 54 of the catheter body is communicated with the catheter body 1. During the breathing support process, the gas entering the catheter body 1 can pass through the end hole 54 of the catheter body. freed.

Generally, the head end of the catheter body 1 has an arc shape, and the side vent portion of the catheter is located at the bottom of the arc opening of the catheter body 1 , that is, the side vent portion of the catheter is located inside the arc head portion of the catheter body 1 . The side ventilation part of the catheter penetrates the tube wall on the side where the catheter body 1 is located, that is, when the catheter body 1 performs breathing support after intubation, the side ventilation part of the catheter can also be used to release gas, so that the gas in the catheter body 1 can be released. The gas is simultaneously released through the end hole 54 of the catheter body and the vent portion on the side of the catheter, thereby effectively realizing breathing support.

In order to achieve the effect of ventilation, a catheter balloon 2 needs to be provided at the head end of the catheter body 1 , and the catheter balloon 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 balloon 2 is consistent with the length direction of the catheter body 1 , but the length of the catheter balloon 2 is much smaller than the length of the catheter body 1 . In order not to affect the release of gas through the side vent portion of the catheter, the catheter balloon 2 wraps the head of the catheter body 1 except the corresponding outer wall of the side vent portion of the catheter, and the side vent portion of the catheter is located at both ends of the catheter balloon 2 In other words, the outer ring of the side vent portion of the catheter is the catheter balloon 2 surrounding the catheter body 1, and the lower edge of the catheter balloon 2 is located between the side vent portion of the catheter and the end hole 54 of the catheter body.

When the operated lung is the left lung, 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 so that the catheter body 2 is located on the right side of the carina, that is, the front half of the catheter body 2 The ventilated portion of the catheter is located in the right bronchial opening, and the rear half of the catheter balloon 2 is located behind the endotracheal carina. At this time, the ventilating portion of the lateral catheter is located behind the endotracheal eminence of the main trachea, so that the venting portion of the lateral ventilating portion of the catheter is facing the opening of the left bronchus. Fill the catheter balloon 2 with an appropriate amount of gas, the catheter balloon 2 is inflated, the front half of the catheter balloon 2 blocks the right bronchus, and at the same time, the rear half of the catheter balloon 2 blocks the main trachea, and the catheter body 1 can pass through the catheter body The outer hole 54 provides respiratory support to the right lung, and at the same time, the catheter body 1 can provide respiratory support to the left lung through the ventilating portion on the side of the catheter, so that double-lung ventilation can be implemented. In specific implementation, the first half of the catheter balloon 2 specifically guides the part of the catheter balloon 2 adjacent to the end hole 54 of the catheter body, and the second half of the catheter balloon 2 specifically guides the part of the catheter balloon 2 away from the catheter body end hole 54 .

Before the operation starts, disconnect the breathing connection of the catheter at the end of the catheter body 1 from the ventilator/anesthesia machine to suspend breathing support for three minutes. The end hole 54 of the catheter body and the gas in the left lung pass through the ventilating part on the side of the catheter, and are discharged from the body through the tail of the catheter body 1. At this time, both the left lung and the right lung are in a collapsed state.

At the beginning of the operation, keep the depth position of the catheter body 1 unchanged, rotate the catheter body 1 at an angle of 180 degrees, so that the ventilation part on the side of the catheter is changed from facing the left bronchial opening to facing the right side wall behind the carina, and the catheter is again placed. The catheter breathing connector at the tail of body 1 is connected to the ventilator/anesthesia machine for the required breathing support. Since the vent on the side of the duct corresponds to the right side wall behind the carina, the side vent of the duct is closed by the cooperation of the side wall and the vent on the side of the duct, so that the vent on the side of the duct forms a blind hole; The one-lung ventilation of the right lung is supported by the hole 54 at the end of the catheter body, and the right-sided one-lung ventilation can be implemented. The collapsed left lung allows enough space in the left thoracic cavity on the surgical side for surgical operations.

When the operation is over and the left lung ventilation needs to be checked for left lung airtightness or bilateral lung ventilation, keep the depth position of the catheter body 1 unchanged again, and rotate the catheter body 1 at an angle of 180 degrees, so that the ventilation part on the side of the catheter is facing the left side again. The bronchus is open, and the use of the catheter body end hole 54 of the catheter body 1 and the side ventilation part of the catheter can simultaneously realize the bilateral lung ventilation of the right lung and the left lung; The incised and sutured parts are strengthened and repaired until the detection of the incision and anastomosis is satisfactory, and the operation of the left lung can be completed. That is, in the whole process, the catheter body 1 needs to be withdrawn into the main trachea, and the catheter body 1 only needs to be rotated, which can avoid the existing problems caused by withdrawing the catheter body 1 into the main trachea, and improve the convenience of operation during double-lung ventilation. and reliability.

After the operation of the left lung is completed, double-lung ventilation should be resumed in time, which 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. When it is determined that the left lung operation is completed and the chest cavity can be closed, the catheter body 1 is retracted by 3cm-5cm, and the catheter balloon body 2 is retracted into the main trachea, which can reduce the stimulation of the catheter balloon body 2 to the carina and reduce the cardiovascular response; , the side ventilation part of the catheter corresponds to the side wall of the main trachea, and can form a blind hole state, which will not affect the normal bilateral lung ventilation.

Similarly, when the operating lung is the right lung, the specific process of using the catheter body 1 to perform the surgical operation on the left lung and the right lung can refer to the above description. The specific process is well known to those skilled in the art and will not be repeated here. .

Further, the side vent portion of the duct includes one or more side vent holes 3, the side vent holes 3 pass through the corresponding side wall of the duct body 1, and the length of the side vent portion of the duct is 1.5cm～3cm;

The distance between the lower edge of the catheter balloon 2 and the end hole 54 of the catheter body is 0.8cm-2cm; the distance between the upper edge of the catheter balloon 2 and the outer edge of the vent portion on the side of the catheter is 0.8cm-2cm.

In the embodiment of the present invention, the side vent portion of the duct can be one or more side vent holes 3, and the side vent hole 3 penetrates the pipe wall on the side where the duct body 1 is located. When the side vent portion of the duct is a side vent hole 3, the diameter and size of the side vent hole 3 are consistent with the side vent portion of the catheter, so as to improve the ventilation effect as much as possible. 1 , 2 , 3 , 4 , 13 , 14 , 18 , 19 and 20 all show the implementation of a side ventilation hole 3 for the side ventilation part of the catheter. The length of the side vent portion of the catheter is 1.5cm to 3cm. The length of the side vent portion of the catheter specifically refers to the length that is consistent with the length direction of the catheter body 1. When a side vent hole 3 is used for the side vent portion of the catheter, the The length of the side vent hole 3 is consistent with the length of the side vent portion of the catheter.

In specific implementation, the distance between the lower edge of the catheter balloon 2 and the hole 54 at the end of the catheter body is 0.8 cm to 2 cm, and the distance between the upper edge of the catheter balloon 2 and the outer edge of the vent portion on the side of the catheter is 0.8 cm to 2 cm By setting the distance between the catheter balloon body 2 and the end hole 54 of the catheter body and the ventilation part on the side of the catheter body, it can not only ensure the ventilation of the non-surgical side lung, but also ensure that the operation side lung can be ventilated when needed. It can effectively achieve the purpose of double-lung ventilation.

Further, it also includes a balloon inflation and deflation connecting pipe 5 capable of inflating and deflating the catheter balloon 2 and an inflation and deflation sealing valve 4 adapted to connect with the balloon inflation and deflation connecting pipe 5; the catheter The body end hole 54 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 balloon 2 can be inflated and deflated through the balloon inflation and deflation connecting pipe 5 and the inflation and deflation sealing valve 4 . The process of inflating and deflating the catheter balloon 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 54 of the duct body is in an oblique wedge shape at the head end of the duct body 1, the slope formed by the end hole 54 of the duct body and the side vent portion of the duct body are located on the same side of the duct body 1;

When the end hole 54 of the duct body is in the shape of a flat mouth, the head end of the duct body 1 is provided with a head end exhaust hole 45 , and the head end exhaust hole 45 penetrates the pipe wall of the duct body 1 The head exhaust hole 45 is located between the lower edge of the catheter balloon 2 and the end hole 54 of the catheter body, and the head exhaust hole 45 and the side vent portion of the catheter are located on the same side of the catheter body 1 .

In the embodiment of the present invention, when the head end of the catheter body 1 is in an oblique wedge shape, the hole 54 at the end of the catheter body is consistent with the head end of the existing catheter body 1. As shown in FIG. 18 , the end of the catheter body is shown. The case where the portion hole 54 is in an oblique wedge shape at the tip end of the catheter body 1 . A sloped surface 48 can be formed at the head end of the catheter body 1 through the wedge-shaped end hole 54 of the catheter body. The side vents are located on both sides of the catheter body 1 respectively. The height of the slope surface 48 is gradually reduced along the direction from the tail end of the catheter body 1 to the head end of the catheter body 1 , so that a tip shape can be formed at the head end of the catheter body 1 .

1 , 2 , 3 , 4 , 13 , 14 , 18 and 19 , it is shown that the end hole 54 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 54 of the catheter body at the head end of the catheter body 1, the use of the catheter body end hole 54 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. When using the catheter body 1 and the catheter body end hole 54 to support the right lung, in order to adapt to the ventilation of the upper lobe bronchus of the right lung, the catheter body 1 is provided with a head end exhaust hole 45, the head end The vent hole 45 passes through the catheter body 1. Generally, the head end vent hole 45 can be located on the same side as the side vent portion of the catheter, and the head end vent hole 45 is located at the lower edge of the catheter balloon 2 and the end hole 54 of the catheter body. between. During specific implementation, the number of the head-end exhaust holes 54 provided at the head end of the catheter body 1 can be selected according to needs. When the catheter body end hole 54 of the catheter body 1 enters the right bronchus, the head exhaust hole 45 can be used to supply air to the upper lobe bronchus of the right lung, and it can also prevent the catheter body 1 from being sucked by the bronchial tube during intubation. In the case of wall blockage, the ventilation effect of the non-surgical side lung is affected, and the reliability of respiratory support is further improved.

As shown in Fig. 21 and Fig. 22, the catheter breathing connection head includes a joint conduit connecting pipe 13 that can be adapted to be connected with the rear end of the catheter body 1 and a joint connection sleeve used to be adapted to be connected to a ventilator/anesthesia machine 7. The tail end of the conduit body 1 can be sleeved on the joint conduit connecting pipe 13, the joint connecting sleeve 7 can be sleeved on the joint conduit connecting pipe 13, and the joint connecting sleeve 7 can be communicated with the conduit body 1 through the joint conduit connecting pipe 13. , and the joint connecting sleeve 7 can rotate relative to the joint pipe connecting pipe 13 and the pipe body 1 .

In the embodiment of the present invention, the tail end of the conduit body 1 can be sheathed on the joint conduit connecting pipe 13, and after the conduit body 1 is sheathed on the joint conduit connecting pipe 13, the joint of the conduit body 1 and the joint conduit connecting pipe 13 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 13 . 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 13 , so that the ventilator/anesthesia function can send gas into the catheter body 1 . In specific implementation, the joint connection sleeve 7 can rotate relative to the joint conduit connection pipe 13 , and the joint conduit connection pipe 13 remains stable after being connected with the conduit body 1 . At this time, the joint connection 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 connection sleeve 7, due to the positional relationship between the breathing support patient and the ventilator/anesthesia machine, etc., the catheter body 1 is easily twisted, and the twisted state of the catheter body 1 will affect the ventilation effect. , which will seriously affect the connection with the ventilator/anesthesia machine. 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 13 is provided with a joint conduit conduit convex ring 12, and a joint conduit conduit groove 49 is arranged in the pipe wall of the joint conduit conduit 7 to allow the joint conduit conduit 13 to be embedded;

When the joint connecting sleeve 7 is sleeved on the joint connecting pipe 13, the joint connecting pipe 13 is embedded in the joint connecting sleeve groove 49, and the joint connecting pipe convex ring 12 can be embedded in the joint connecting sleeve 7. In the joint connecting sleeve positioning groove 46 , the joint connecting sleeve 7 can be rotated on the joint conduit connecting pipe 13 by the cooperation of the joint conduit connecting pipe convex ring 12 and the joint connecting sleeve positioning groove 46 .

In the embodiment of the present invention, the joint conduit connecting pipe convex ring 12 is protruded on the joint conduit connecting pipe 13 , and the joint conduit connecting pipe convex ring 12 is distributed along the circumferential surface of the joint conduit connecting pipe 13 . A joint connection sleeve groove 49 is provided in the pipe wall of the joint connection sleeve 7 , and the length of the joint connection sleeve groove 49 is smaller than the length of the joint connection sleeve 7 . The joint conduit connecting pipe 13 can extend into the joint connecting sleeve groove 49 . The joint connection sleeve groove 49 is in the shape of an annular groove in the joint connection sleeve 7 . A joint connecting sleeve positioning groove 46 is provided on the inner wall of the joint connecting sleeve groove 49 , and the joint connecting sleeve positioning groove 46 can allow the joint pipe connecting pipe convex ring 12 to be embedded. When the joint conduit connecting pipe convex ring 12 is embedded in the joint connecting casing positioning groove 46, the joint connecting casing 7 can be rotated on the joint conduit connecting pipe 13, that is, the joint connecting casing 7 and the joint conduit connecting pipe 13 can be connected. relative rotation between. Generally, the joint conduit connecting pipe convex ring 12 adopts a clearance fit between the joint connecting casing positioning grooves 46, that is, the rotation of the joint connecting casing 7 relative to the joint conduit connecting pipe 13 is not affected.

In the specific implementation, the joint connecting casing wall groove 34 is provided on the joint connecting casing 7, the joint connecting casing wall groove 34 penetrates the joint connecting casing 7, and the joint connecting casing wall groove 34 and the joint connecting casing positioning groove 46 are in the same direction. correspond. The splice sleeve locating groove 46 is annular, while the splice sleeve wall groove 34 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 13, the gas in the joint connection sleeve 7 can be prevented from passing through the joint connection sleeve groove 49, or through the joint connection sleeve groove 49, the joint The connecting sleeve wall slot 34 escapes. Of course, a sealing ring can also be provided at the joint of the joint connection sleeve 7 and the joint conduit connection pipe 13 to further ensure the air tightness in use; The joint pipe connecting pipe 13 shall be rotated upwards. The joint conduit connecting tube 13 is also provided with joint conduit connecting tube end plates 47 distributed on opposite sides, and the entire conduit breathing connection head can be conveniently held through the joint conduit connecting tube end plate 47 .

Further, a tooth pad mechanism for opening the oral cavity is provided on the catheter body 1, the tooth pad mechanism can be locked on the catheter body 1, and when the locked state between the tooth pad mechanism and the catheter body 1 is released, the teeth The pad mechanism is movable 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, and the oral cavity can be opened by the tooth pad mechanism, and the patient's teeth can also be bitten on the tooth pad mechanism. 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, it is necessary to release the locked state between the tooth pad mechanism and the catheter body 1. After the unlocked state with the catheter body 1 is released, the tooth pad mechanism and the catheter body 1 can move relative to each other. The movement specifically includes the rotation of the catheter body 1 relative to the tooth pad mechanism, or the catheter body 1 can be pulled/pushed to move. During the movement of the catheter body 1, the oral cavity can be kept open by using the tooth pad mechanism. 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.

As shown in Fig. 23, Fig. 24, Fig. 25 and Fig. 26, the tooth pad mechanism includes a tooth pad locking connection sleeve 19 that can be fitted over the catheter body 1 and a tooth pad locking connection sleeve 19 that can be fitted over the conduit body 1 and can be connected with the tooth pad The locking connecting sleeve 19 is adapted to be connected to the locking adjusting connecting pipe 6, and a tooth cushion cover 8 for teeth occlusion is sleeved on the locking adjusting connecting pipe 6;

The inner wall of the locking and adjusting connecting pipe 6 is provided with an internal thread 50 of the adjusting connecting pipe, and the thickness of the pipe wall of the locking adjusting connecting pipe 6 is gradually changed; The external thread 52 of the adapted locking sleeve, the head end of the tooth pad locking connecting sleeve 19 can extend into the locking adjustment connecting pipe 6 and be tightly connected with the locking adjusting connecting pipe 6, and the tail end of the tooth cushion locking connecting sleeve 19 is divided into a plurality of connection locking pieces 51;

The relative movement of the locking adjustment connecting tube 6 and the tooth pad locking connecting sleeve 19 makes the connecting locking piece 51 shrink toward the catheter body 1, which can mutually lock the tooth cushion locking connecting sleeve 19 and the catheter body 1; the locking adjusting connecting tube 6 and the tooth pad The relative movement of the locking connecting sleeve 19 makes the connecting locking piece 51 open away from the catheter body 1 , and the locking state of the tooth pad locking connecting sleeve 19 and the catheter body 1 can be released.

In the embodiment of the present invention, both the locking adjustment connecting tube 6 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 6, and the tooth cushion sleeve 8 is sleeved on the locking adjustment connecting sleeve. After the tube 6 is installed, the tooth pad cover 8 can maintain stability with the locking and adjusting connecting tube 6, that is, the stability of opening the oral cavity can be realized.

The inner wall of the locking and adjusting connecting pipe 6 is provided with an adjusting connecting pipe inner thread 50 , and the thickness of the pipe wall of the locking and adjusting connecting pipe 6 is in a state of gradual change, as shown in FIG. 26 . In FIG. 26 , along the direction from top to bottom, the pipe wall of the locking and adjusting connecting pipe 6 gradually becomes thinner, and the inner thread 50 of the adjusting connecting pipe also follows the pipe wall of the locking connecting pipe 6 . The outer wall of the tooth pad locking connecting sleeve 19 is provided with a locking sleeve external thread 52 , and the tooth cushion locking connecting sleeve 19 can be connected and matched with the adjusting connecting pipe internal thread 50 of the locking adjusting connecting pipe 6 through the locking sleeve external thread 52 . The rear end of the tooth pad locking connecting sleeve 19 can form several connecting locking pieces 51 through several locking piece dividing grooves 53 , and each connecting locking piece 51 also has a locking sleeve external thread 52 .

It can be seen from the above description that the change of the inner wall thickness of the locking adjustment connecting tube 6 is used to cooperate with the tooth pad locking connecting sleeve 19 and the connecting locking piece 51. The connection locking piece 51 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 6 is rotated and the connecting locking piece 51 is pressed against 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 adjusting connecting pipe 6 with a larger wall thickness is tightly connected with the connecting locking piece 51 , the connecting locking piece 51 can be pressed against the catheter body 1 .

Further, the tooth pad cover 8 is provided with tooth pad grooves 9 that allow teeth to be embedded, and the tooth pad grooves 9 are symmetrically distributed on the tooth pad cover 8; The sleeve body groove 11 fitted with the sputum tube, the sleeve body groove 11 is located between the two tooth cushion grooves 9 on the tooth cushion sleeve 8 , and the sputum suction 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 space for a sputum suction tube, etc., so that the sputum suction tube is placed in the oral cavity through the sleeve body groove 11, thereby improving the stability and reliability when using the sputum suction tube to suck sputum.

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 balloon body 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 balloon body 2 is painted with a marking color, so as to avoid the situation where the position state of the catheter balloon body 2 cannot be effectively observed when the existing catheter balloon body 2 adopts a transparent color.

As shown in FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , the video head capture mechanism includes a sampling link 15 that can be embedded in the catheter body 1 and a link video head 14 located at the head end of the sampling link 15 , the length of the sampling connecting rod 15 is greater than the length of the catheter body 1; the sampling connecting rod 15 can enable the connecting rod video head 14 to pass through the end hole 54 of the catheter body, or the sampling connecting rod 15 can make the connecting rod video The head 14 is withdrawn from the catheter body 1 ; the connecting rod video head 14 can be electrically connected to the connecting rod video output connector 16 through the connecting rod video cable 17 embedded in the sampling connecting rod 15 .

In the embodiment of the present invention, the connecting rod video head 14 is located at the end of the sampling connecting rod 15, and the connecting rod video head 14 can take the form of video image sampling such as the existing commonly used camera, and the specific form can be selected according to the needs. Repeat. Generally, the length of the sampling rod 15 is greater than the length of the catheter body 1 , so that the video head 14 of the rod can pass through the head end of the catheter body 1 , as shown in FIGS. 3 and 4 . The outer diameter of the sampling connecting rod 15 is generally smaller than the inner diameter of the catheter body 1, and the position of the connecting rod video head 14 can be adjusted through the sampling connecting rod 15. The rod video head 14 is withdrawn from the catheter body 1 .

The main body of the connecting rod video line 17 is embedded in the sampling connecting rod 15, and the connecting rod video output connector 16 is located outside the sampling connecting rod 15, that is, the connecting rod video line 17 has a part outside the sampling connecting rod 15, and the connecting rod video output connection The head 16 can be electrically connected with a video display device, such as a display screen, etc. The specific form of the link video output connector 16 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 15, 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 15 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 15 includes a plurality of evenly distributed connecting rod pieces 26, and a gas flow groove that allows gas to pass through can be formed between the adjacent connecting rod pieces 26; The gas flows under the guidance of the gas flow groove, and can be discharged through the ventilation part on the side of the duct and the hole 54 at the end of the duct body.

In the embodiment of the present invention, when a video catheter connector is provided at the end of the sampling rod 15, a detachable connection is required between the catheter breathing connector and the catheter body 1, that is, when the sampling rod 15 is placed in the catheter body 1, The catheter connector needs to be separated from the catheter body 1 so that the sampling link 15 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 14 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 15 is matched with the catheter body 1 , the sampling rod 15 needs to be inserted into the catheter body 1 . In order to achieve the effect of ventilation during the intubation process, the video catheter connection head can be communicated with the catheter body 1, and the catheter body 1 can be adapted and connected to the ventilator/anesthesia machine through the video catheter connection head.

In specific implementation, the sampling connecting rod 15 has a plurality of evenly distributed connecting rod pieces 26, and the space between the adjacent connecting rod pieces 26 can form a gas flow groove. When the sampling connecting rod 15 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 catheter side. The side vent and the end hole 54 of the catheter body are discharged, that is, the breathing support during the intubation process of the catheter body 1 is realized. During the intubation process, the link video head 14 can be used to observe the position state during the intubation process in real time. A rod hole 27 is provided in the sampling link 15 , and the link video cable 17 can be embedded in the sampling link 15 through the rod hole 27 to realize connection and cooperation with the link video head 14 .

As shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , the video conduit connection head includes a video connection connecting pipe 21 that can be adapted to the conduit body 1 , and a video connection connecting pipe 21 that can be adapted to Adjusting the transition connecting pipe 20 and the video ventilation connecting pipe 18 adapted to the adjusting transition connecting pipe 20;

The tail end of the catheter body 1 can be sleeved on the video connection connecting pipe 21, and the inner wall of the adjusting transition connecting pipe 20 is provided with a transition adjusting inner thread 30, and the video ventilation connecting pipe 18 can be adapted and connected with the ventilator/anesthesia machine. The pipe 18 can be communicated with the video connection pipe 21 by adjusting the transition pipe 20, the adjustment transition pipe 20 can rotate relative to the video connection pipe 21, and the video ventilation pipe 18 can rotate relative to the adjustment transition pipe 20;

The outer wall of the sampling connecting rod 15 is provided with a connecting rod outer thread 25 that can be adapted to the transition adjustment inner thread 30 . Enter into the catheter body 1; the position state of the sampling rod 15 in the catheter body 1 can be adjusted through the cooperation between the outer thread 25 of the connecting rod and the inner thread 30 of the transition adjustment.

In the embodiment of the present invention, the video connection connecting pipe 21 can be connected to 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 21. It can be seen from the above description that the catheter body 1 is sleeved on the video connection connecting pipe 21. After the video connection connecting pipe 21 is attached, the catheter body 1 and the video connection connecting pipe 21 can be disassembled and separated, so as to facilitate the subsequent reconnection and cooperation between the catheter body 1 and the breathing connection of the catheter.

The inner wall of the adjustment transition connecting pipe 20 has a transition adjustment inner thread 30, which can be connected with the ventilator/anesthesia machine through the video ventilation connecting pipe 18, that is, the size, shape, etc. Adaptation to meet the needs of connecting with ventilator/anesthesia machine. The video ventilation connecting pipe 18 can be communicated with the video connecting connecting pipe 21 by adjusting the transition connecting pipe 20, so that when the video connecting connecting pipe 21 is connected with the catheter body 1, the video ventilation connecting pipe 18 can be communicated with the catheter body 1. After the pipe 18 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 pipe 18 , the adjusting transition connecting pipe 20 and the video connecting connecting pipe 21 . During specific implementation, the adjusting transition connecting pipe 20 and the video connecting connecting pipe 21 can rotate relative to each other, and the video ventilation connecting pipe 18 and the adjusting transition connecting pipe 20 can also rotate relative to each other.

A connecting rod external thread 25 is provided on the outer wall of the sampling connecting rod 15 , and the connecting rod external thread 25 can be adapted to the transition adjustment internal thread 30 . In specific implementation, a connecting rod external thread can be set in the area at the tail of the sampling connecting rod 15 25. By cooperating with the outer thread 25 of the connecting rod and the inner thread 30 of the transition adjustment, the fine adjustment of the position of the sampling connecting rod 15 can be realized. Since the adjustment transition connecting pipe 20 can rotate relative to the video connecting connecting pipe 21, when the transition adjusting connecting rod 20 rotates, the rotation of the adjusting transition connecting pipe 20 relative to the video connecting connecting pipe 21 can be driven, so that the sampling link 15 can be adjusted in the conduit. Fine-tuning of position within body 1.

During specific implementation, a video ventilation line body side pipe 22 is also provided on the video ventilation connecting pipe 18, the video ventilation line body side pipe 22 is communicated with the video ventilation connecting pipe 18, and the video ventilation line body side pipe 22 is located in the video ventilation connecting pipe 22. One side of the tube 18, and the length direction of the video ventilation wire body side tube 22 and the video ventilation connecting tube 18 are perpendicular to each other. A side tube positioning sealing body 29 is provided in the video ventilation wire body side tube 22 . The connecting rod video output connector 16 is located outside the video ventilation connecting pipe 18, that is, the connecting rod video line 17 is passed through the side pipe 22 of the video ventilation line body, and the side pipe is used to locate the sealing body 29 to realize the connection between the connecting rod video line 17 and the video ventilation line. The body side tube 22 is sealed.

In order to realize the rotation of the video ventilation connection pipe 18 relative to the adjustment transition connection pipe 20, the video ventilation connection pipe 18 is connected and matched with the adjustment transition connection pipe 20 by connecting the first ring body 23 by rotation; similarly, the adjustment transition connection pipe 20 is connected by rotation The second ring body 24 is connected and matched with the video connection connecting pipe 21 . Specifically, the rotationally connected first ring body 23 and the rotationally connected second ring body 24 adopt the same structural form. The video ventilation tube 18 is provided with a ventilation tube lumen 28 , and a video ventilation tube ring groove is set on the ventilation tube lower body 31 at the lower part of the video ventilation tube 18 , and the outer diameter of the ventilation tube lower body 31 is smaller than the video ventilation tube 18 . The outer diameter of the upper part. A first groove 32 for rotational connection is arranged on the upper part of the adjustment transition connecting pipe 20 , the lower part of the video ventilation connecting pipe 18 can be embedded in the adjusting transition connecting pipe 20 , and the video ventilation connecting pipe 18 is embedded in the adjusting transition connecting pipe 20 after the video ventilation connecting pipe 18 is embedded in the adjusting transition connecting pipe 20 , the ring groove of the video ventilation pipe can be directly corresponding to the first groove 32 of the rotary connection.

The specific structure of the first ring body 23 rotatably connected to the second ring body 24 is shown in FIG. 12 . Specifically, the ring body 38 is included. The ring body 38 is arc-shaped and has a ring shape at both ends of the ring body 38 . Body end grooves 39 , the annular body end grooves 39 are located on the outer side of the annular body 38 , and there are annular body steps 40 on the inner sides of both ends of the annular body 38 . The annular body 38 can be embedded in the first groove 32 of the rotatable connection, and at the same time embedded in the annular groove of the fitting vent connecting pipe. The arc length of the first groove 32 for rotating connection is slightly larger than the arc length of the annular body 38, so that the annular body 38 can be connected with both ends of the first rotating groove 32 by using the end groove 39 of the annular body, and the annular body 38 can be prevented from being rotated from the first groove 38. The first groove 32 is separated, and the annular body 38 can be embedded in the annular groove of the matching ventilation connecting pipe by the annular body step 40, so that the video ventilation connecting pipe 38 and the adjusting transition connecting pipe 20 can be rotated around the annular body 38 to realize the video ventilation. The connecting pipe 38 and the adjusting transition connecting pipe 20 rotate relative to each other.

A second groove 33 for rotating connection is arranged at the lower part of the adjusting transition connecting pipe 20 , and the second groove 33 for rotating connecting passes through the pipe wall of the adjusting transition connecting pipe 20 . Of course, the first groove 32 for rotating connecting also passes through the corresponding pipe of the adjusting transition connecting pipe 20 . wall. The end of the video connection pipe 21 can extend into the adjustment transition pipe 20, and the video connection pipe 21 is provided with a video connection pipe rotation positioning groove 36, and the video connection pipe rotation positioning groove 36 is in the shape of a ring groove. When the video connection pipe 21 is embedded in the adjustment transition pipe 20, the rotation positioning groove 36 of the video connection pipe can be directly corresponding to the second groove 33 of the rotation connection, so that the second ring body 24 can be connected with the rotation of the second ring body 24 by the rotation connection. The groove 33 and the video connection connecting pipe rotation positioning groove 36 are matched, so that the adjusting transition connecting pipe 20 and the video connecting connecting pipe 21 can rotate around the rotating connecting second ring body 24, so as to realize the adjustment between the transition connecting pipe 20 and the video connecting connecting pipe 21. The relative rotation of the second ring body 24 and the connection and cooperation process of the rotational connection of the second ring body 24 can be referred to the above description, which will not be repeated here.

In specific implementation, the video connection connecting pipe inner limit block 37 is arranged in the video connection connecting pipe 21 , and the sampling link 15 can be limited by using the video connecting connecting pipe inner limit block 37 . The video connection connection pipe 21 is also provided with a video connection connection pipe end plate 35. The video connection connection pipe end plate 35 is symmetrically distributed on the outer wall of the video connection connection pipe 21. Through the video connection connection pipe end plate 35, the conduit body 1 can be connected to the The connection limit between the video connection pipes 21 can also facilitate the holding of the video connection pipes 21 .

As shown in FIG. 13 , FIG. 14 , FIG. 15 , FIG. 16 and FIG. 17 , the video image acquisition mechanism includes a linear video head 43 located in the lumen of the catheter body 1 and a video head 43 electrically connected to the linear video head 43 . The connecting wire body 41 is provided with a tube body wire hole that allows the connecting wire body 41 to pass through in the tube wall of the catheter body 1 , and the tube body wire hole and the side ventilation part of the catheter are respectively located at two corresponding sides of the catheter body 1 . side; the connecting line body 41 is also electrically connected with the line body video connector 42, which is located outside the catheter body 1; when the connecting line body 41 is pulled, the line body video head 43 can be adjusted inside the catheter body 1 s position.

Specifically, compared with the above-mentioned video image acquisition mechanism using the sampling link 15 and the link video head 14, the linear video head 43 is placed in the lumen of the catheter body 1, and the specific type of the linear video head 43 can refer to the connecting rod The description of the video header 14 is acceptable as long as the video image collection can be realized, and will not be repeated here. The connecting wire body 41 can adopt the existing commonly used cable, the wire body video connector 42 is electrically connected with the wire body video head 43 through the connecting wire body 41, and the specific situation of the wire body video connector 42 can refer to the connecting rod video output connector 16, the video and images collected by the linear video head 43 can be transmitted through the linear video connector 42, which will not be repeated here.

In the embodiment of the present invention, a tube body wire hole is provided in the tube wall of the catheter body 1, the tube body wire hole allows the connecting wire body 41 to pass through, and the wire body video connector 42 is located outside the catheter body 1. Therefore, the connecting wire The main part of the body 41 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 41 located outside the tail end of the catheter body 1 is electrically connected to the wire body video connector 42, and the length of the tube body wire hole is smaller than that of the catheter. The length of the body 1 , the line hole of the tube body and the ventilation part of the side of the catheter are respectively located on both sides of the catheter body 1 . In specific implementation, the linear video head 43 can be located outside the side vent hole 3 in the catheter body 1, that is, the linear video head 43 is located between the side ventilation hole 3 and the end hole 54 of the catheter body, and the linear video The head 43 is capable of video and image capture of the information in front of the hole 54 at the end of the catheter body. For the specific situation of the line-body video connector 42, reference may be made to the description of the link video output connector 16, which will not be repeated here.

Of course, a structure for limiting the position of the linear video head 43 can also be arranged in the catheter body 1 to prevent the linear video head 43 from being far from the side vent holes 3. By pulling the connecting wire body 41, the linear video head can also be made 43 is directly corresponding to the side vent hole 3 to collect video and image information of the part corresponding to the side vent hole 3 . Specifically, a base guide limiting groove 44 is provided in the catheter body 1, and the video head base 55 of the linear video head 43 can be adapted to the base guiding limiting groove 44, so that the linear video head 43 is installed on the base 55 of the video head. In the base guide limit groove 44, the video head base 55 can move in the base guide limit groove 44, and the length of the base guide limit groove 44 cooperates with the video head base 55, so that the linear video head 43 can be installed in the conduit body 1. limit within. When the linear video head 43 is installed in the catheter body 1 through the video head base 55 , the linear video head 43 is generally attached to the inner wall of the catheter body 1 .

When the video image capture mechanism adopts the sampling link 15 to cooperate with the video head 14 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 linear video head 43 to cooperate with the connecting wire body 41, the linear video head 43 is always located in the catheter body 1 after the catheter body 1 is intubated, that is, the linear body video head 43 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 balloon 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 balloon 2, or in the outer ring of the catheter balloon 2 adjacent to the side vent portion of the catheter, as long as the intubation process of the catheter body 1 and the use after intubation can be effectively achieved. Video capture and image capture of the required range 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 (10)

1. A single-chamber, single-sac, single-double-lung ventilation catheter, comprising a catheter body (1) and a catheter breathing connector arranged at the tail end of the catheter body (1), at the head end of the catheter body (1) There is a conduit body end hole (54), and the conduit body end hole (54) can be communicated with the conduit breathing connector through the conduit body (1); it is characterized in that: A catheter side vent portion and a catheter balloon (2) adapted to the catheter side vent portion are provided at the head of the catheter body (1), and the catheter side vent portion is connected to the inside of the catheter body (1). The cavities of the ducts are communicated with each other, and the side vents of the duct are located on the inner side of the arc-shaped head end of the duct body (1); The catheter balloon (2) is located at the head of the catheter body (1), and the catheter balloon (2) wraps the corresponding outer wall at the head of the catheter body (1) except for the vent portion on the side of the catheter; the catheter balloon ( 2) The length direction is consistent with the length direction of the catheter body (1), the length of the catheter balloon (2) is greater than the length of the side vent portion of the catheter, and the side vent portion of the catheter is located at both ends of the catheter balloon (2) During the time, the lower edge of the catheter balloon (2) is located between the side vent portion of the catheter and the end hole (54) of the catheter body; A tooth pad mechanism for opening the mouth is provided on the catheter body (1), and the tooth pad mechanism can be locked on the catheter body (1); the locked state of the tooth pad mechanism and the catheter body (1) is released At the time, the catheter body (1) and the tooth pad mechanism can move relatively. 2. The single-chamber single-sac single-double-lung ventilation catheter according to claim 1, wherein the side ventilation portion of the catheter comprises one or more side ventilation holes (3), and the side ventilation holes (3). 3) Pass through the corresponding side wall of the conduit body (1); It also includes a balloon inflation and deflation connecting pipe (5) capable of inflating and deflating the catheter balloon (2), and an inflation and deflation sealing valve (4) adapted to connect with the balloon inflation and deflation connecting pipe (5). ); the end hole (54) of the catheter body is in the shape of an oblique wedge or a flat mouth at the head end of the catheter body (1). 3. The single-chamber, single-sac, single-double-lung ventilation catheter according to claim 2, characterized in that: when the end hole (54) of the catheter body is in an oblique wedge shape at the head end of the catheter body (1), The inclined surface formed by the end hole (54) of the duct body is located on the same side of the duct body (1) as the side vent portion of the duct; When the duct body end hole (54) is in the shape of a flat mouth at the head end of the duct body (1), a head end exhaust hole (45) is provided at the head end of the duct body (1). (45) Passing through the wall of the catheter body (1), the head-end exhaust hole (45) is located between the lower edge of the catheter balloon (2) and the end hole (54) of the catheter body, and the head-end exhaust hole (45) ) is located on the same side of the duct body (1) as the vent portion on the side of the duct. 4. The single-chamber, single-sac, single-double-lung ventilation catheter according to claim 1, characterized in that: the catheter breathing connection head comprises a joint catheter connecting pipe (13) that can be adapted to be connected with the tail end of the catheter body (1). ) and a joint connecting sleeve (7) for adapting and connecting with the ventilator/anesthesia machine, the tail end of the catheter body (1) can be sleeved on the joint conduit connecting pipe (13), and the joint connecting sleeve (7) can be Sleeve on the joint conduit connecting pipe (13), the joint connecting sleeve (7) can be communicated with the conduit body (1) through the joint conduit connecting pipe (13), and the joint connecting sleeve (7) can be connected with the joint conduit connecting pipe (13). 13) and the relative rotation of the catheter body (1). 5. The single-chamber, single-sac, and single-double-lung ventilation catheter according to claim 1, characterized in that: the joint conduit connecting pipe (13) is provided with a joint conduit connecting pipe convex ring (12), and the joint connecting sleeve ( 7) A joint connecting sleeve groove (49) that allows the joint conduit connecting pipe (13) to be embedded is arranged in the pipe wall; When the joint connecting sleeve (7) is sleeved on the joint conduit connecting pipe (13), the joint conduit connecting pipe (13) is embedded in the joint connecting casing groove (49), and the joint conduit connecting pipe convex ring (12) can The joint connecting casing is embedded in the joint connecting casing positioning groove (46) in the joint connecting casing (7), and the joint connecting casing is matched by the joint conduit connecting pipe convex ring (12) and the joint connecting casing positioning groove (46), and the joint connecting casing (7) Can be rotated on the joint conduit connecting pipe (13). 6. The single-chamber, single-sac, single-double-lung ventilation catheter according to claim 1, wherein the tooth pad mechanism comprises a tooth pad locking connection sleeve (19) that can be sleeved on the catheter body (1) and an energy sleeve. On the catheter body (1), a locking adjustment connecting tube (6) that can be fitted and connected with the tooth pad locking connecting sleeve (19) is sleeved on the locking adjusting connecting tube (6) for teeth occlusion. dental pad cover(8); An adjustment connecting pipe internal thread (50) is arranged on the inner wall of the locking and adjusting connecting pipe (6), and the thickness of the pipe wall of the locking adjusting connecting pipe (6) changes gradually; on the outer wall of the tooth pad locking connecting sleeve (19) A locking sleeve external thread (52) that can be adapted to the inner thread (50) of the adjusting connecting pipe is provided, and the head end of the tooth pad locking connecting sleeve (19) can extend into the locking adjusting connecting pipe (6) and connect with the locking adjusting connecting pipe (6) Fastening the connection, the rear end of the tooth pad locking connection sleeve (19) is divided to form a plurality of connection locking pieces (51); The relative movement of the locking adjustment connecting tube (6) and the tooth pad locking connecting sleeve (19) causes the connecting locking piece (51) to shrink toward the catheter body (1), so that the tooth cushion locking connecting sleeve (19) and the catheter body (1) can be locked together. ) are mutually locked; the relative movement of the locking adjustment connecting pipe (6) and the tooth pad locking connecting sleeve (19) makes the connecting locking piece (51) open away from the catheter body (1), the tooth cushion locking connecting sleeve (19) and the catheter can be released. The locked state of the body (1). 7. The single-chamber, single-sac, single-double-lung ventilation catheter according to claim 1, further comprising a video image acquisition mechanism capable of collecting the position state of the catheter body (1) when in use, the video image acquisition mechanism and the catheter The body (1) is adapted and connected, and a marking color is painted on the catheter balloon body (2). 8. The single-chamber, single-sac, single-double-lung ventilation catheter according to claim 7, characterized in that: the video avatar collection mechanism comprises a sampling connecting rod (15) that can be embedded in the catheter body (1) and a sampling rod (15) located in the The connecting rod video head (14) at the head end of the sampling connecting rod (15), the length of the sampling connecting rod (15) is greater than the length of the catheter body (1); the sampling connecting rod (15) can make the connecting rod video head ( 14) The connecting rod video head (14) can be withdrawn from the catheter body (1) through the sampling connecting rod (15) through the end hole (54) of the catheter body; the connecting rod video head (14) The connecting rod video cable (17) embedded in the sampling connecting rod (15) can be electrically connected to the connecting rod video output connector (16). 9. The single-chamber single-bag single-double-lung ventilation catheter according to claim 8 is characterized in that: a video catheter connector is provided at the end of the sampling connecting rod (15), and the catheter breathing connector and the catheter body (1) adopt Removable connection, when the catheter breathing connector is disassembled and separated from the catheter body (1), the video catheter connector is adapted and connected to the tail end of the catheter body (1), and the video catheter connector is connected to the tail end of the catheter body (1). Use detachable connection; After the video conduit connector is adapted and connected to the conduit body (1), the sampling connecting rod (15) 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 (15) includes a plurality of connecting rod pieces (26) evenly distributed, and a gas flow groove for allowing gas to pass through can be formed between adjacent connecting rod pieces (26); the gas enters the duct body ( 1), the gas in the duct body (1) flows under the guidance of the gas flow groove, and can be discharged through the vent portion on the side of the duct and the hole (54) at the end of the duct body. 10. The single-chamber, single-bag, single-double-lung ventilation catheter according to claim 9, characterized in that: the video catheter connector comprises a video connection connecting pipe (21) that can be adapted to the catheter body (1), an adjustment transition connection pipe (20) adapted to the video connection connection pipe (21) and a video ventilation connection pipe (18) adapted to the adjustment transition connection pipe (20); The tail end of the catheter body (1) can be sleeved on the video connection connecting pipe (21), the inner wall of the adjusting transition connecting pipe (20) is provided with a transition adjusting inner thread (30), and the video ventilation connecting pipe (18) can be connected with the ventilator through the video ventilation connecting pipe (18). / The anesthesia machine is adapted and connected, the video ventilation connecting pipe (18) can be connected with the video connecting connecting pipe (21) by adjusting the transition connecting pipe (20), and the adjusting transition connecting pipe (20) can be rotated relative to the video connecting connecting pipe (21) , the video ventilation connecting pipe (18) can rotate relative to the adjusting transition connecting pipe (20); A connecting rod outer thread (25) that can be adapted to the transition adjustment inner thread (30) is arranged on the outer wall of the sampling connecting rod (15), and the sampling connecting rod (15) sequentially passes through the video ventilation connecting pipe (18), adjusts the transition The connecting pipe (20) and the video connecting connecting pipe (21) enter into the catheter body (1); the outer thread (25) of the connecting rod cooperates with the inner thread (30) for transition adjustment, so that the sampling connecting rod (15) can be adjusted in the catheter. The position state of the body (1).

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