CN110251791A - A kind of visualization air flue tube ejector - Google Patents

Abstract

The embodiment of the present invention discloses a visualized airway tube replacement device, which includes a tube replacement catheter and a tracheal intubation tube. A first airbag is installed around the proximal side wall of the tube replacement catheter. The tube is connected with a first inflatable device arranged at the distal end of the tube-changing catheter; the tube-changing catheter is sleeved inside the endotracheal tube, and a second air bag is installed around the proximal side wall of the endotracheal tube. The second air bag is connected with the second inflation device arranged at the distal end of the tracheal intubation through the second inflation tube; the proximal end of the tube changing catheter is equipped with a camera with a cold light source, and both the camera and the cold light source are connected through a power cord It is connected to the monitor installed at the distal end of the tube replacement catheter. The invention uses visualization technology to clearly observe the structure of the oral cavity and throat, quickly and effectively establish an emergency artificial airway, guide the replacement of the tube replacement catheter, reduce airway damage, and effectively resolve uncertainties. Sexually difficult airway problems, protect the safety of ventilation.

Description

A visual airway tube replacement device

technical field

The embodiment of the present invention relates to the technical field of airway tube changing device, in particular to a visualized airway tube changing device.

Background technique

In clinical work, when patients need mechanical ventilation, tracheal intubation and double-lung ventilation are routinely used in clinical practice. Or perform unilateral lung occlusion and one-lung ventilation during thoracic surgery. Endotracheal tubes have been widely used as an important airway tool for assisted ventilation of patients, which can quickly and effectively establish artificial airway. However, due to the complexity of the anatomical structure of the human body and the differences in the tolerance of the airway mucosa, problems such as airway mucosal damage, difficulty in intubation, and displacement of the endotracheal endotracheal tube lead to poor ventilation and even the tube's detachment from the trachea often occur. Ventilation failure, and even serious complications such as suffocation. In addition, traditional tracheal intubation, double-lumen bronchial intubation and bronchial occluder cannot perform visual airway management on patients during ventilation. If it is necessary to adjust the depth or orientation of the tracheal tube in clinical work, it is often invisible to the naked eye. Therefore, the adjustment process of the endotracheal tube in the trachea is a blind operation, resulting in damage to the airway and its subsidiary structures such as the glottis and cricoarytenoid joints, and even irreversible damage to the physiological structure, which wastes time and prolongs the patient's hypoxic time , Even delay the rescue time of patients. The main reasons are as follows:

First of all, tracheal intubation is an important ventilation method used in general anesthesia or cardiopulmonary resuscitation and rescue of critically ill patients with respiratory dysfunction. The success rate of tracheal intubation and difficult airway intubation, shortening the intubation time, and reducing damage to the airway are the key issues in current clinical work. In clinical practice, if a patient with a difficult airway needs to change the endotracheal tube, or when a thoracic patient changes from a double-lumen endotracheal tube to a single-lumen endotracheal tube, the tube changer is often used as a guiding tool, that is, firstly insert the endotracheal tube into the airway. Insert a thinner tube changer into the endotracheal tube, and then pull out the inserted endotracheal tube along the changer to the outside of the body. Insert the catheter into the airway according to the path of the device, and finally insert the endotracheal tube under the guidance of the tube changer to achieve the purpose of guiding tracheal tube placement or tube change. The traditional tube changer is a bendable, non-scaled plastic solid guide core. Its main function is to guide the endotracheal tube into the trachea. Therefore, it is impossible to accurately judge whether the insertion depth of the tube changer is in the trachea, and it is impossible to judge whether the front end of the tube changer pierces the trachea wall when the tube changer is inserted, and it is impossible to ensure that the tube changer is used for replacement. The tube changer did not come out of the airway during the endotracheal tube, resulting in the failure of the endotracheal tube placement.

Secondly, as a non-visualized airway ventilation device, the double-lumen endotracheal tube is widely used as an important tool for assisting mechanical ventilation in thoracic patients. The double-lumen endotracheal tube is inserted during the operation, which can connect the patient's diseased side lung and healthy side lung. Isolate and separate to prevent the diseased lung secretions and pathogens from spreading to the healthy lung, causing acute airway obstruction or the risk of infection of the healthy lung. The double-lumen tracheal tube can realize independent or synchronous ventilation of one lung in intrathoracic lung surgery or critically ill patients. After the operation, bilateral lung ventilation was performed to avoid postoperative atelectasis and lung collapse. The clinical operation of double-lumen tracheal tube insertion is complicated and requires a lot of clinical practice. It is currently the standard ventilation method for effectively establishing lung isolation ventilation and one-lung ventilation in clinical work. However, in clinical practice, the main tube of the traditional double-lumen endotracheal tube has a relatively large cross-sectional area, and there is no visible probe. The traditional double-lumen endotracheal tube has a large damage during blind intubation, which may cause damage to the physiological and anatomical structure of the glottis and tracheal wall scratches. injury, or even tearing, resulting in serious clinical adverse events. In addition, due to its relatively thick outer diameter, the double-lumen endotracheal tube has external pressure on the trachea in clinical work, so it is easy to cause external pressure damage to the patient's trachea during maintenance and extubation after insertion.

That is, the traditional tracheal intubation, double-lumen bronchial intubation, etc. existing in the prior art have the problem of airway damage and inaccurate positioning under the condition of non-visual operation.

Contents of the invention

For this reason, the embodiment of the present invention provides a visualized airway tube changing device to solve the problem of airway damage and inaccurate positioning of traditional tube changing catheters and double-lumen endotracheal tubes in the prior art under non-visualized operations. The problem.

In order to achieve the above purpose, embodiments of the present invention provide the following technical solutions:

A visualized airway tube replacement device, comprising a replacement tube catheter and an auxiliary endotracheal intubation tube, a first air bag is installed around the proximal side wall of the tube replacement catheter, and the first air bag is connected to a The first inflation device at the distal end of the tube-changing catheter; the tube-changing catheter is sleeved inside the tracheal intubation, and a second airbag is installed around the proximal side wall of the tracheal intubation, and the second airbag passes through the first The second inflatable tube is connected with a second inflatable device arranged at the distal end of the endotracheal tube;

The proximal end of the tube changing catheter is equipped with a camera with a cold light source, and the camera and the cold light source are connected to the display at the far end of the tube changing catheter through a power cord.

The embodiment of the present invention is also characterized in that the inside of the tube changing catheter is provided with a power cord chamber for accommodating the near-end camera and the middle and far-end power cords, and a ventilation chamber for ventilating the inside of the tube changing catheter And a first air-filled chamber for accommodating the first air-filled tube, the distal end of the ventilation chamber is connected with a lung ventilation device.

The embodiment of the present invention is also characterized in that the proximal side wall of the endotracheal tube, that is, the inner side wall of the second air bag is provided with an inflation opening of the second air bag.

The embodiment of the present invention is also characterized in that the distal end of the tracheal intubation tube is connected to the distal end of the catheter by a three-way tube.

The embodiment of the present invention is also characterized in that the tube walls of the catheter for changing tubes and the endotracheal tube are all provided with scale marks.

The embodiment of the present invention is also characterized in that the camera and the cold light source are integrally surrounded by the outer wall of the guide core, and the proximal end of the tube changing catheter is in the shape of a blunt arc.

The embodiment of the present invention is also characterized in that the outer diameter of the catheter core is 3.0 mm to 5.5 mm, and the length is 450 mm to 850 mm.

The embodiment of the present invention is also characterized in that the main body of the tube replacement catheter adopts extrusion or injection molding technology, and is a hollow structure, and the proximal end adopts a protective cap to cover the body or a blunt fusion tip.

The embodiment of the present invention is also characterized in that the main part of the tube changing catheter is made of transparent silicone material, and the proximal hollow tube core of the tube changing catheter covers the camera.

Embodiments of the present invention have the following advantages:

The present invention effectively utilizes the existing visualization technology, can clearly observe the structure of the oral cavity and throat, quickly, accurately and effectively establish an emergency artificial airway, guide the replacement of the tracheal tube, and block the bronchi. Less damage, effectively solve the problem of uncertain and difficult airway, and protect the safety of ventilation. The specific benefits are as follows:

(1) Visual operation: the present invention can quickly guide the endotracheal tube through the glottis for intubation, reduce airway damage, improve the success rate of intubation, and can observe the situation of heterosexual reflux or secretions in the airway in real time to ensure the safety of the airway. unobstructed;

(2) Safe tube replacement: For patients with difficult airways that may have airway collapse or difficult intubation, conventional extubation and tube replacement have a greater risk. Pull out the original tracheal tube, and then intubate the new tube Sleeve the catheter for tube replacement, guide the new endotracheal intubation into the trachea along the path established by the present invention, this method is safer to operate;

(3) Safe extubation: the present invention prevents non-deterministic difficult airway patients, and airway collapse or obstruction occurs after deflation and extubation. If necessary, the device of the present invention can be repeatedly intubated to effectively and quickly establish and open the airway;

(4) Anti-aspiration: The proximal end of the tube-changing catheter of the present invention is designed to block the air bag structure, and the air bag of the tube-changing catheter is inflated before extubation, so as to prevent foreign matter from falling off the airway in the process of pulling out the tracheal intubation, and improve foreign body blocking and cleaning isolation effect to ensure ventilation safety;

(5) The air bag structure of the device of the present invention can reduce the dissociative damage at the proximal end of the tube changing catheter, reduce airway irritation and damage, and ensure ventilation safety;

(6) The tube replacement catheter of the device of the present invention is made of flexible plastic material, which is not easy to damage the airway, is not easy to corrode, and does not have leakage and conduction phenomena. The LED cold light source is designed to prevent thermal damage to the airway.

Description of drawings

In order to illustrate the embodiment of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiment or the prior art. Apparently, the accompanying drawings in the following description are only exemplary, and those of ordinary skill in the art can also obtain other implementation drawings according to the provided drawings without creative work.

The structures, proportions, sizes, etc. shown in this manual are only used to cooperate with the content disclosed in the manual, so that people familiar with this technology can understand and read, and are not used to limit the conditions for the implementation of the present invention, so there is no technical In the substantive meaning above, any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the technical content disclosed in the present invention without affecting the functions and objectives of the present invention. within the range that can be covered.

FIG. 1 is a schematic diagram of the overall structure provided by an embodiment of the present invention;

Fig. 2 is the schematic cross-sectional structure diagram of A-A' in Fig. 1 that the embodiment of the present invention provides;

Fig. 3 is the schematic cross-sectional structure diagram of B-B' in Fig. 1 provided by the embodiment of the present invention;

Fig. 4 is a perspective structural schematic diagram provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of a partial structure provided by an embodiment of the present invention.

In the picture:

1- tube replacement catheter; 2- endotracheal intubation; 3- three-way tube;

11-the first air bag; 12-the first inflatable tube; 13-the first inflatable device; 14-camera; 15-cold light source; 16-power cord; 17-monitor; 18-lung ventilation device;

21-the second air bag; 22-the second inflation tube; 23-the second inflation device;

101-power line chamber; 102-ventilation chamber; 103-first air-filled chamber; 104-tracheal ring; 105-mark mark; 201-opening through hole.

Detailed ways

The implementation mode of the present invention is illustrated by specific specific examples below, and those who are familiar with this technology can easily understand other advantages and effects of the present invention from the contents disclosed in this description. Obviously, the described embodiments are a part of the present invention. , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall also be regarded as the implementable scope of the present invention without substantive change of the technical content.

As shown in Figures 1 to 5, a visualized airway tube changing device includes a tube changing tube 1 and an endotracheal tube 2, and the tube changing tube 1 is set inside the endotracheal tube 2 for guiding the replacement of the endotracheal tube 2 . The distal end of the endotracheal intubation tube 2 is connected with the distal end of the tube changing catheter 1 through a three-way tube 3 . The relative fixation between the tube changing catheter 1 and the tracheal intubation tube 2 can be realized. Extract the old endotracheal tube 2 under the guidance of the tube changing catheter 1 and replace the new endotracheal tube 2. It can quickly and effectively guide the establishment of an emergency artificial airway, realize ventilation positioning, guide the tracheal intubation tube 2 into the airway, and reduce the difficulty of intubation.

Surrounding the near-end sidewall of the tube-changing catheter 1, a first air bag 11 is installed, and the first balloon 11 is connected with a first inflation device 13 arranged at the far-end of the tube-changing catheter 1 through a first inflation tube 12. The first inflation device 13 inflates and deflates the first airbag 11 through the first inflation tube 12.

Surrounding the proximal side wall of the endotracheal tube 2, a second air bag 21 is installed, and the proximal side wall of the endotracheal tube 2, that is, the second air bag 21 inner side wall is provided with an inflation opening of the second air bag 21. The second air bag 21 is connected with the second inflation device 23 that is arranged on the distal end of the endotracheal tube 2 through the second inflation tube 22. The second inflation device 23 inflates and deflates the second air bag 21 through the second inflation tube 22 . Through the above structure, for patients under anesthesia, without the assistance of laryngoscope, seamless switching of tracheal intubation 1, emergency airway establishment and unilateral pulmonary visual ventilation management can be performed.

In order to make the device of the present invention have a visual airway tube changing function, the front end of the tube changing catheter 1 is equipped with a camera 14 that is provided with a cold light source 15. Preferably, the cold light source 15 is an LED cold light source lamp. The camera 14 and the cold light source 15 are all connected to the display 17 arranged at the far end of the tube changing catheter 1 through the power cord 16, and have functions such as independent display, shooting, video recording and storage. The cold light source design is beneficial to protect the airway mucosa; the wired transmission design transmits the operation surface to the display 17, the signal is more stable, the interference of electronic components in the operating room or monitoring room is reduced, and refined visual operation is realized.

Preferably, the inside of the tube changing catheter 1 is provided with a power cord chamber 101 for accommodating the power cord 16 , a ventilation chamber 102 for ventilating inside the tube changing catheter 1 and a first air-filled chamber for accommodating the first inflatable tube 12 Chamber 103, the end of the ventilation chamber 102 is connected with a pulmonary ventilation device 18. The pipelines are all located inside the tube changing catheter 1, the structure is simplified, and the tube changing operation is more convenient. The main part of the replacement catheter 1 adopts extrusion or injection molding technology, which is a hollow structure. The main part of the replacement catheter 1 is made of transparent silicone material, which has good flexibility. The proximal hollow tube core of the replacement catheter 1 includes a camera 14. Both the camera 14 and the cold light source 15 are integrally surrounded by the outer wall of the guide core, and the proximal end of the tube replacement catheter 1 is in the shape of a blunt arc. The proximal end of the tube changing catheter 1 adopts a protective cap to wrap around or a blunt fusion tip. At the same time, with the proximal softening technology, it is easy to guide the replacement catheter 1 into the airway, improve the ease of use of the catheter, ensure the safety of the catheter, and reduce the mucosal damage during the catheterization process. Tube replacement catheter 1 and endotracheal intubation tube 2 are heat-insulated and anti-scald to protect the safety of catheter placement and reduce mucosal damage. The patient end of the endotracheal intubation tube 1 is blocked by a camera 14 and a cold light source 15 in cooperation with a blunt fusion tip, and the distal end of the tube changing catheter 1 is blocked by melting, which can be cleaned to reduce cross-infection while protecting the airway. Combined with the caliber and length of the trachea, preferably, the outer diameter of the catheter 1 core is 3.0 mm to 5.5 mm, and the length is 450 mm to 850 mm, which is convenient for guiding the smooth insertion and extraction of the tracheal intubation tube 2 .

The camera 14 and the cold light source 15 are fixed inside the power cord chamber 101 of the tube changing catheter 1 by means of an inlay, and the tube wall of the power cord chamber 101 is completely wrapped around the camera 14 and the cold light source 15 outside. The camera 14 and the cold light source 15 are entirely surrounded by the outer wall of the guide core, and are in the shape of a blunt arc, which is convenient for extending into the trachea and protecting the airway. Power line 16 and signal line are arranged in the inside of power line chamber 101, and one end of its connector connects camera 14 and cold light source 15, and the other end connects display 17, is convenient to assemble and disassemble with display 17.

In order to facilitate the understanding of the insertion depth of the tube replacement catheter 1 and to provide a reference for inserting a new tube, the tube wall of the tube replacement catheter 1 is made of translucent material, and the tube walls of the tube replacement catheter 1 and the tracheal intubation tube 2 are provided with scale marks 105 . A tracheal ring 104 is provided on the side wall of the distal end of the first balloon 11 , and an auxiliary opening through hole 201 is provided on the side wall of the proximal end of the endotracheal tube 2 . The opening through hole 201 can be observed by sliding the camera 14 up and down, which can assist in confirming the relative position of the tube exchange catheter 1 and the endotracheal tube 2.

As a preferred implementation:

In clinical application, first connect the tube changing catheter 1 to the monitor 17 through the power cord 16, place the monitor 17 on the side of the patient's head, turn on the power, and confirm that the screen of the monitor 17 is normal. Prepare a new tracheal intubation tube 2, confirm that the model is correct, maintain the inflation state of the first air bag 11 of the tube changing catheter 1, get ready, and change the tube.

The three-way tube 3 between the tube replacement catheter 1 and the old endotracheal tube 2 is disconnected. Under the guidance of the tube replacement catheter 1, the endotracheal tube 2 is inserted into the trachea, and the new insertion into the trachea is confirmed by the scale line 105. Depth of cannula 2. The second balloon 21 of the endotracheal tube 2 is inflated by the second inflation device 23. When the tube-changing catheter 1 is extracted, the gas in the first balloon 11 is exhausted, and the tube-changing catheter 1 is extracted under the guidance of the endotracheal tube 2. When pulling out the replacement catheter 1, hold the replacement catheter 1 with your right hand, fix the tracheal intubation tube 2 with your left hand, and pull out the replacement catheter 1 along the inner cavity of the tracheal intubation tube 2. The tube 2 is always located in the trachea, and the patient end of the tube changing catheter 1 of the airway changing device can reduce the contact with the inner wall of the endotracheal tube, and the changing tube 1 can be pulled out smoothly, realizing the free switching between the changing tube 1 and the endotracheal tube 2 .

After the old tube replacement catheter 1 is pulled out of the mouth as a whole, the operator fixes the airway tube replacement device of the present invention by hand, and instructs another person to disconnect the old tube replacement catheter 1 of the airway tube replacement device of the present invention from the power cord 16, Separate the old tube changing catheter 1 from the tracheal intubation tube 2 of the airway tube changing device of the present invention, and then insert the new tube changing catheter 1 into the endotracheal tube 2 of the airway tube changing device of the present invention, and place the camera 14 and the cold light source 15 etc. are reconnected with the power cord 16 of the display 17, the screen is recovered, and the relative position of the new tube changing catheter 1 and the endotracheal intubation tube 2 is reconfirmed.

Put the new tube changing catheter 1 into the trachea along the path established by the tracheal intubation tube 2 of the airway changing device of the present invention, and reach the depth recorded by the previous scale line 105. At this time, slightly retreat the airway changing device of the present invention, and pass The display 17 shows that the open end of the new tube changing catheter 1 is located in the trachea, and the position and depth of the tube changing catheter 1 can be confirmed and monitored in real time.

Inflate the first airbag 11 of the new tube-changing catheter 1 through the first inflation device 13, fix the distal end of the tube-changing catheter 1, confirm again whether the depth of the tube-changing catheter 1 is located in the endotracheal tube 2 is appropriate, and release the second balloon 21. gas, pull out the endotracheal tube 2 of the airway tube changing device of the present invention.

The present invention realizes the whole-process visualization operation of the tube replacement process, can confirm and monitor the position of the tube replacement catheter 1 in real time, and does not need to use a laryngoscope to assist in the clinical operation, reducing the dosage of anesthetics, and aims to provide a visual airway tube replacement device; and The endotracheal intubation tube 2 and tube changing catheter 1 of the present invention are designed with an airbag structure at the proximal end, which can be freely inflated and exhausted through the distal inflation device, can be used for bronchial occlusion ventilation, and can overcome the damage caused by double-lumen bronchial intubation in clinical applications Airway mucosa, a defect that scratches the airway wall.

Although the present invention has been described in detail with general description and specific examples above, it will be obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, these modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims (9)

1. A visualized airway tube changing device, characterized in that: it comprises a tube changing catheter (1) and an endotracheal intubation tube (2), and a first balloon ( 11), the first air bag (11) is connected with the first inflation device (13) arranged at the distal end of the tube changing catheter (1) through the first inflation tube (12); the tube changing catheter (2) is set on Inside the endotracheal tube (1), a second airbag (21) is installed around the proximal side wall of the endotracheal tube (2), and the second airbag (21) passes through the second inflatable tube (22) A second inflation device (23) arranged at the distal end of the endotracheal tube (2) is connected; The proximal end of the tube changing catheter (1) is equipped with a camera (14) with a cold light source (15), and both the camera (14) and the cold light source (15) are connected to the changing tube through a power cord (16). A monitor (17) at the distal end of the catheter (1). 2. A visualized airway tube changing device according to claim 1, characterized in that: the inside of the tube changing catheter (1) is provided with a camera (14) for accommodating the proximal end and a middle and distal power cord (16), the power cord chamber (101), the ventilation chamber (102) used for ventilation inside the catheter (1) and the first gas-filled chamber for accommodating the first gas-filled tube (12) (103), the distal end of the ventilation chamber (102) is connected with a lung ventilation device (18). 3. A visualized airway tube changing device according to claim 1, characterized in that: the proximal side wall of the endotracheal tube (2), that is, the inner side wall of the second balloon (21) is provided with a second The inflation opening of air bag (21). 4. A visualized airway tube changing device according to claim 1, characterized in that: the distal end of the endotracheal intubation tube (2) and the distal end of the tube changing catheter (1) pass through a three-way tube (3 )connect. 5 . The visualized airway tube changing device according to claim 1 , characterized in that: the tube walls of the tube changing catheter ( 1 ) and the tracheal intubation tube ( 2 ) are both provided with scale marks ( 105 ). 6. A visualized airway tube changing device according to claim 1, characterized in that: the camera (14) and the cold light source (15) are integrally surrounded by the outer wall of the guide core, and the tube changing catheter (1 ) is in the shape of a blunt arc at the proximal end. 7. A visualized airway tube changing device according to claim 1, characterized in that: the outer diameter of the tube core of the tube changing catheter (1) is 3.0mm-5.5mm, and the length is 450mm-850mm. 8. A visualized airway tube replacement device according to claim 1, characterized in that: the main part of the tube replacement catheter (1) adopts extrusion or injection molding technology, and is a hollow structure, and the proximal end adopts a protective cap bag Rao or blunt fusion tip method. 9. A visualized airway tube replacement device according to claim 1, characterized in that: the main part of the tube replacement catheter (1) is made of transparent silica gel material, and the proximal hollow tube of the tube replacement catheter (1) The core wraps the camera (14).