CN108498928B - A tracheal intubation kit that can remove bronchial obstruction under the guidance of fiberoptic bronchoscope - Google Patents

Abstract

The invention relates to a tracheal intubation kit that can remove bronchial blockage under the guidance of a fiberoptic bronchoscope. The tracheal intubation kit includes a blocking catheter and a tracheal tube; the blocking catheter includes a catheter body; and the front end position of the catheter body A first cuff and a first annular cuff are provided respectively; the tracheal tube includes a tracheal tube body, a first threaded tube interface, a second threaded tube interface, and a second annular cuff; the front end position of the tracheal tube body A second cuff is provided; the second annular cuff is located inside the end of the endotracheal tube body. Its advantages include: effectively blocking the bronchi of the affected lung while ventilating the unaffected lung; the tracheal tube is inserted into the trachea without touching the carina at the intersection of the left and right bronchi, and will not cause harm to the carina. Stimulation and nerve reflex; the blocking catheter can be quickly and accurately placed into the bronchus that needs to be blocked under the direct guidance of the fiberoptic bronchoscope.

Description

A tracheal intubation kit that can remove bronchial obstruction under the guidance of fiberoptic bronchoscope

Technical field

The present invention relates to the technical field of medical intubation kits. Specifically, it is a tracheal intubation kit that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

Background technique

At present, one-lung ventilation technology is a commonly used technology. It is often used for minimally invasive thoracoscopic surgery or thoracotomy for lung and esophageal surgery on one lung. The lung on the side that requires thoracotomy collapses to expose the surgical space. , at the same time, after the bronchi on the affected side of the lung are blocked, some lung lesions on the affected side, especially those involving bronchiectasis, blood, thick sputum and infectious substances, cannot flow into the unaffected lung. While ensuring effective ventilation, the unaffected lung can It also serves as an effective physical barrier. Bilateral lung ventilation will be implemented after the surgical lesions are removed.

Currently, a double-lumen endotracheal tube is commonly used in clinical practice, which can perform single-lung ventilation and block the lungs. However, this double-lumen endotracheal tube has a large diameter and is difficult to insert, especially for some difficult-to-insert tubes. For patients with tubes, it is not only more difficult, but also more damaging. In addition, this kind of tube needs to be inserted into the trachea to reach the carina to perform one-lung ventilation. The front end of the tube is bound to easily irritate the tracheal carina, causing a damaging intubation reaction, which the patient cannot tolerate. tube and other unfavorable factors. In addition, if the patient needs to wear an endotracheal tube to continue ventilator support treatment after surgery, he or she needs to be replaced with a single-lumen endotracheal tube. Repeated invasive operations increase the risk of injury and the incidence of adverse events. There is also a blocked catheter, but it lacks visual guidance and is difficult to operate. What is even more dangerous is that if the patient's lower main trachea or bronchi have lesions or stenosis, inserting a tube that is too thick or too deep can easily cause bleeding and damage, resulting in irreparable consequences. It is not suitable for the insertion of a double-lumen endotracheal tube.

Chinese patent document: CN201110316610.9, application date 2011.10.18, patent name: single-lumen endotracheal tube-bronchial occluder single-lung ventilation integrated device. An integrated single-lumen tracheal tube-bronchial occluder single-lung ventilation device is disclosed, which belongs to a medical device and includes a "y"-shaped tee connected to the single-lumen tracheal tube. The front end of the single-lumen tracheal tube is equipped with Catheter sac, the left and right sides of the front of the catheter sac are equipped with bronchial openings on the healthy and affected sides, and the tip is equipped with a "V" shaped carina card. The bronchial blocking system and the single-lumen endotracheal tube are integrated structures, and the front end of the blocking tube is at the upper edge of the bronchial opening on the affected side. It is penetrated and equipped with a blocking bag, which is shaped upward in the wall of the catheter body, and the tail end is penetrated at the root of the affected side of the catheter body, connected to a two-way blocking tube switch, and equipped with an elastic guide wire specially used to clear the blocked tube.

The single-lumen endotracheal tube-bronchial occluder single-lung ventilation integrated device in the above-mentioned patent document has a simple structure and a reasonable design. It integrates many advantages of the current single-lung ventilation device and can provide a convenient, accurate, single-lung ventilation device for clinical use. A new type of one-lung ventilation device with flexible switching of double-lung ventilation, allowing the affected lung to remain in a static and collapsed state. However, under the direct vision guidance of fiberoptic bronchoscopy, it can effectively block the bronchi of the patient's affected lung while ventilating the healthy side of the lung. The endotracheal tube will not cause any damage to the patient's lungs during the insertion process. The protuberance between them produces compression and stimulation, which reduces the patient's adverse nerve reflexes and can quickly and intuitively determine the location of the blocked catheter during bronchoscopy. It can be used to guide the bronchial obstruction of the trachea under the guidance of a bronchoscope. There are currently no relevant reports on intubation kits.

In summary, there is an urgent need for a device that can be used under direct vision guidance of a fiberoptic bronchoscope to effectively block the bronchi of the patient's affected lung while ventilating the healthy side of the lung. The endotracheal tube does not need to be inserted during the insertion process. It will squeeze and stimulate the protuberance between the patient's lungs, reduce the patient's adverse nerve reflexes, and can quickly and intuitively determine the location of the blocked catheter during bronchoscopy. It can be guided by the bronchoscope. Endotracheal intubation kit for descending bronchus obstruction.

Contents of the invention

The purpose of the present invention is to address the deficiencies in the prior art and provide an endotracheal tube for use under direct vision guidance of a fiberoptic bronchoscope, which can effectively block the bronchi of the patient's affected lung while simultaneously ventilating the healthy side of the lung. During the insertion process, it will not squeeze or stimulate the protrusion between the patient's lungs, reduce the patient's adverse neurological reflexes, and can quickly and intuitively determine the location of the blocked catheter during bronchoscopy. A tracheal intubation kit that can remove bronchial obstruction under the guidance of fiberoptic bronchoscope.

In order to achieve the above objects, the technical solutions adopted by the present invention are:

A tracheal intubation kit that can remove bronchial blockage under the guidance of a fiberoptic bronchoscope. The tracheal intubation kit includes a blocking catheter and a tracheal tube; the blocking catheter includes a catheter body; the surface of the catheter body is provided with scale lines ; The front end of the catheter body is provided with a first cuff; the upper position of the first cuff is provided with a first annular cuff; the ends of the catheter body are respectively provided with connecting first cuffs through thin tubes , the first inflation valve and the second inflation valve of the first annular cuff; the bottom of the catheter body is connected with a cap; the thin tube body is located in the wall of the catheter body; the inner wall of the catheter body There are also thin steel wires in it;

The tracheal tube includes a tracheal tube body, a first threaded tube interface, a second threaded tube interface, and a second annular cuff; the surface of the tracheal tube body is also provided with scale marks; the front end of the tracheal tube body is located There is a second cuff; the first threaded tube interface is located at the end side of the tracheal tube body; the second threaded tube interface is located at the end of the tracheal tube body; the first threaded interface and the second threaded interface The tracheal caps are respectively connected to the tracheal caps; the second annular cuff is located inside the end of the tracheal tube body; the end of the tracheal tube body is respectively connected to the second cuff and the second annular cuff through a thin tube. The third inflation valve and the fourth inflation valve of the bag; the main body of the thin tube is arranged in the conduit wall of the tracheal tube body; the inner wall of the tracheal tube body is also provided with a thin steel wire; when the plugged conduit is used, Placed in an endotracheal tube.

As a preferred technical solution, the first cuff and the first annular cuff have an arc-shaped structure of 10° to 20°, with a distance of 1cm-3cm between them, and the arc angle is at the same angle as the annular cuff. The plane direction is opposite.

As a preferred technical solution, the plugged catheter is a hollow structure with a diameter of 1mm-4.5mm.

As a preferred technical solution, the tracheal tube is a single-lumen tracheal tube body.

As a preferred technical solution, a closed space is formed between the second annular cuff and the end of the blocking tube.

As a preferred technical solution, the first threaded pipe interface is an international standard ventilator interface.

As a preferred technical solution, the tracheal tube further includes an air cavity tube and an injection valve.

As a preferred technical solution, the air lumen catheter is respectively located above the first annular cuff and the second cuff, has a hollow annular structure, and is separated from the first cuff and the second cuff respectively. The injection valve is located at the end of the endotracheal tube body at a distance of 0.2cm-0.6cm.

As a preferred technical solution, the air cavity conduit and the injection valve are connected to each other, and a plurality of small holes are provided on the surface of the air cavity conduit.

The advantages of the present invention are:

1. Utilizing the complementary cooperation between the blocking tube and the endotracheal tube, the patient can effectively block and collapse the affected lung when undergoing one-lung ventilation treatment. The blocking tube can block the bronchi of the affected lung to avoid blood or sputum. At the same time, the hollow plugged catheter is used to deliver oxygen and attract blood or secretions to the lungs on the affected side when necessary. After blocking the affected lung, the healthy lung can effectively implement one-lung ventilation to ensure the body's oxygen supply.

2. Use the first annular cuff at the front end of the plugging catheter to fully and fix the lens end of the fiber branch, so that during the insertion process of the plugging catheter, the fiber bronchoscope can be used to guide the catheterization, which facilitates inspection and treatment and makes placement easier. The tube is completed quickly.

3. Use the blocking catheter to block the bronchi of the patient's affected lung. On the one hand, it facilitates the exposure of the surgical space in the chest cavity on the affected side and facilitates surgical treatment. On the other hand, it prevents the blood or sputum in the affected lung from flowing to the healthy patient. in the side lung, thereby effectively avoiding the risk of infection in the healthy side lung.

4. The front end of the endotracheal tube is a single-lumen tube. Since the insertion depth only reaches the upper and middle sections of the main trachea, it can avoid the endotracheal tube from squeezing and irritating the carina between the patient's lungs during the insertion process, thus reducing the risk of The patient's adverse neurological reflexes.

5. Use the fourth inflation valve to inflate the second annular cuff inside the end of the endotracheal tube body, so that the second annular cuff can fix the end of the blocked tube, and a gap is formed between the second annular cuff and the blocked tube. It closes the space and at the same time, can play a good role in pressurizing and fixing the blocked catheter and measuring the scale.

6. By controlling the first threaded pipe interface located on the end side of the endotracheal tube body to connect to the ventilator, the breathing work of the patient's healthy side lungs can be completed through the endotracheal tube, and the second annular cuff and blocked tube are used The closed space formed between the ends prevents the gas in the endotracheal tube from leaking out, so that the patient can continue to treat the affected lungs and ventilate the healthy lungs.

7. When the patient needs continuous ventilator support in the intensive care unit, he only needs to withdraw the blocked tube and cover the second threaded tube interface at the end of the endotracheal tube body with the tracheal cover, and then the ventilator can be used to continuously deliver oxygen to the patient. , thereby avoiding the need to replace other catheters and repeat catheterization, greatly reducing patient risks and the incidence of adverse events.

8. The hollow structure of the blocking catheter is designed so that after the catheter body has blocked the bronchus of the affected lung, the cap on the bottom of the catheter body can be removed and the lungs on the affected side can be exhausted using the catheter body. The lungs are completely collapsed, making it easy to expose the surgical space. At the same time, due to the hollow design, the blocking catheter can deliver oxygen to the affected lungs and attract blood and secretions from the affected lungs when necessary.

9. By providing an air cavity pipeline on the blocked tube and endotracheal tube, an injection valve is used to inject anesthetic drugs into the pipeline through a thin tube. After the anesthetic drugs overflow through the small holes, the patient's carina and glottis can be injected up and down and up and down. Topical anesthesia at the larynx greatly reduces the patient's intolerance to the insertion of a tracheal tube, greatly reduces the use of sedative drugs, helps promote the patient's expectoration and recovery of respiratory function, reduces the incidence of pneumonia, and reduces death. rate, medical expenses and hospitalization time, which is conducive to the rapid recovery of patients.

10. Due to the double-port design of the endotracheal tube, one end can be connected to a ventilator for ventilation, and the other port is closed when not in use. If the patient needs to undergo fiberoptic bronchoscopy examination and treatment, a passage can be provided for the patient, and the annular shape inside the end of the endotracheal tube The cuff has a controllable closing function. After the fiberoptic bronchoscope enters the endotracheal tube, the annular cuff is properly inflated to ensure a certain degree of sealing while ensuring inspection, and does not affect the first threaded interface to deliver oxygen to the patient.

11. While the first threaded interface is connected to the ventilator for oxygen inhalation, a catheter can be inserted through the pipeline through the second threaded interface, and then the annular cuff in the endotracheal tube is properly inflated to a closed state, and aerosol inhalation or intratracheal inhalation can be performed for the patient in a timely or continuous manner. medical treatement.

Description of the drawings

1 is a schematic three-dimensional structural diagram of a tracheal intubation kit blocking tube capable of removing bronchial obstruction under the guidance of a fiberoptic bronchoscope according to the present invention.

2 is a schematic plan view of a tracheal intubation kit blocking tube of the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

3 is a schematic three-dimensional structural diagram of an endotracheal intubation kit and tracheal tube according to the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

4 is a schematic plan view of an endotracheal intubation kit and tracheal tube according to the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

Figure 5 is an enlarged schematic diagram of the second annular cuff at the end of the tracheal tube body of a tracheal intubation kit capable of removing bronchial obstruction under the guidance of a fiberoptic bronchoscope according to the present invention.

Figure 6 is a schematic structural diagram of the tracheal intubation kit in use according to the present invention, which can be used to remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

Figure 7 is a schematic plan view of a tracheal intubation kit according to the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope to simulate occlusion of a patient's left bronchus.

Figure 8 is a schematic diagram of the three-dimensional structure of another tracheal intubation kit of the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

9 is a schematic three-dimensional structural diagram of another endotracheal intubation kit blocking catheter according to the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

Figure 10 is a schematic plan view of the air cavity tube of another tracheal intubation kit according to the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope.

Figure 11 is a schematic plan view of a conventional fiber bronchoscope.

Detailed ways

The specific embodiments provided by the present invention will be described in detail below with reference to the accompanying drawings.

The reference signs and components involved in the drawings are as follows:

11.Catheter body

12. Scale 13. First cuff

134. First inflation valve 135. Second inflation valve

14. First annular cuff 15. Thin tube

16. Cap 17. Pipe wall

18. Thin steel wire 2. Endotracheal tube

21. Tracheal tube body 22. First threaded tube interface

23. Second threaded pipe interface 234. Trachea cover

24. Second annular cuff 245. Third inflation valve

246. The fourth charging valve

26. Catheter wall 27. Air cavity catheter

271. Small hole 28. Injection valve

3. Fiber bronchoscope

Example 1

Please refer to accompanying drawings 1, 2, 3 and 4. Figure 1 is a schematic three-dimensional structural view of the blocking catheter of a tracheal intubation kit capable of removing bronchial obstruction under the guidance of a fiberoptic bronchoscope, a schematic plan view of the blocking catheter, and a three-dimensional view of the tracheal tube. Structural diagram and plan view of the endotracheal tube. A tracheal intubation kit that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope. The tracheal intubation kit includes a blocking catheter and a tracheal tube 2; the blocking catheter includes a catheter body 11; the surface of the catheter body 11 is provided with There is a scale mark 12; a first cuff 13 is provided at the front end of the catheter body 1; a first annular cuff 14 is provided above the first cuff 13; the first cuff 13 and the An annular cuff 14 has an arc-shaped curved structure in front; the end position of the catheter body 11 is provided with a first inflation valve 134 and a second inflation valve respectively connecting the first cuff 13 and the first annular cuff 14 through the thin tube 15 Valve 135; the bottom of the conduit body 11 is connected with a cap 16; the main body of the thin tube 15 is located in the wall 17 of the conduit body 1; the inner wall of the conduit body 11 is also provided with a thin steel wire 18 ;

The tracheal tube 2 includes a tracheal tube body 21, a first threaded tube interface 22, a second threaded tube interface 23, and a second annular cuff 24; the surface of the tracheal tube body 21 is also provided with scale lines 12; A second cuff is provided at the front end of the tracheal tube body 21; the first threaded tube interface 22 is located on the end side of the tracheal tube body 21; the second threaded tube interface 23 is located at the end of the tracheal tube body 21; The first threaded interface 22 and the second threaded interface 23 are respectively connected with a tracheal cover 234; the second annular cuff is located inside the end of the tracheal tube body 21; the end of the tracheal tube body 21 passes through Similarly, the third inflation valve 245 and the fourth inflation valve 246 are respectively provided through the thin tube 15 to connect the second cuff and the second annular cuff 24; the main body of the thin tube 15 is provided on the catheter wall 26 of the endotracheal tube body 21 In; the inner wall of the endotracheal tube body 21 is also provided with a thin steel wire 18; the blocking tube is placed in the endotracheal tube 2 during use.

It should be noted that: the blocking catheter and the endotracheal tube 2 are made of special soft resin materials and have good flexibility. They are independent entities and complement each other when used; the top of the blocking catheter is horizontal The cross-section is a blunt structure, and the bottom is provided with side holes, which can prevent the blocking catheter from damaging the tracheal wall during the insertion process; the top of the tracheal tube 2 is an oblique open structure, and the bottom is also provided with side holes; The catheter body 11 is a hollow structure with a diameter of 1mm-4.5mm, and the top cross-section is a blunt structure; after the cap 16 provided at the bottom is removed, the catheter body 11 can be used to perform an operation on the lungs on the affected side. Exhaust, causing the lungs to completely collapse, which facilitates exposure of the surgical space and treatment; the first cuff 13 and the first annular cuff 14 provided at the front end of the catheter body 11 have a 10° to 20° structure. And the distance between the two is 1cm-3cm, and the direction of the arc angle is on the same plane and opposite to the annular cuff, which facilitates the placement of the plugging catheter; the first annular cuff 13 is a granular cuff, which can be After inflating, the particles are used to increase the friction between the bronchoscope and the bronchoscope to ensure that the bronchoscope and the blocked catheter are firmly fixed; when the blocked tube 1 is used, the lens end of the fiber bronchoscope is placed at the front end of the catheter body 11 After the first annular cuff 14 is in the position, use the second inflation valve 135 to inflate the first annular cuff 14 so that the first annular cuff 14 fixes the lens end of the fiber branch, and inserts and threads the blocking tube 1 In the endotracheal tube 2, by utilizing the fiber bronchoscope guiding function at the front end of the blocking tube 1, the head end of the blocking tube 1 can be quickly and intuitively placed at the site that needs to be blocked;

After the blocked tube 1 is placed at a designated position using the guidance function of the bronchoscope, the first cuff 13 can be effectively used to fix the blocked tube 1 body by controlling the first inflation valve 134 to inflate the first cuff 13 . And block the bronchus that needs to be blocked in the patient's affected lung, thereby preventing the blood or sputum in the affected lung from flowing out to the unaffected lung, causing infection of the unaffected lung, and at the same time, blocking the affected lung, Pulmonary ventilation is detected; when the first cuff 13 completes the obstruction of the bronchus of the affected lung, and then controls the second inflation valve 135 to discharge the gas in the first annular cuff 14, the first annular cuff 14 Once loose, the bronchoscope body can be quickly and safely withdrawn; the scale mark 12 provided on the surface of the catheter body 11 is used to determine the depth and position of the blocked catheter into the patient's trachea;

When the tracheal tube 2 is used, under the observation of a laryngoscope, the front end of the tube is placed in the patient's trachea, and the third inflation valve 245 provided at the end of the tracheal tube body 21 is controlled to inflate the second cuff, thereby The position of the tracheal tube 2 can be fixed; the front end of the tracheal tube 2 is a single-lumen tube, which can avoid the tracheal tube 2 from squeezing and irritating the carina between the patient's lungs during the insertion process, thereby causing Reducing the patient's adverse neurological reflexes; after the position of the tracheal tube 2 is fixed, the blocked tube is inserted into the bronchi of the patient's affected lung to complete the fixed blocking of the blocked tube and the withdrawal of the fiberoptic bronchoscope, and then the fourth step is controlled by The inflation valve 246 inflates the second annular cuff 24 provided inside the end of the endotracheal tube body 21, so that the second annular cuff 24 can fix the end of the blocking tube 1 while the second annular cuff 24 is in contact with the blocking tube 1. A closed space is formed between the ends;

The first threaded pipe interface 22 is an international standard ventilator interface; the external connection to the ventilator can be accomplished through the tracheal tube 2 by controlling the first threaded pipe interface 22 located on the end side of the tracheal tube body 21 The breathing work of the patient's unaffected lungs is performed, and the closed space formed between the second annular cuff 24 and the end of the blocking tube 1 is utilized so that the gas in the endotracheal tube 2 does not leak out, so that the patient can be continuously treated. Hemostasis treatment for blockage in the affected lung and oxygen delivery to the unaffected lung; the surface of the tracheal tube body 21 is also provided with a scale mark 12 for judging the depth and position of the tracheal tube 2 entering the patient's trachea;

When the patient needs to be transferred to the ward for monitoring after the thoracic surgery is completed, if the patient still needs continuous assisted ventilation treatment with a ventilator after the evaluation, then, at this time, only the first inflation valve 134 and the fourth inflation valve 246 can be controlled. After the gas in the first cuff 13 and the second annular cuff 24 is released and the blocked tube 1 is taken out, the second threaded tube interface at the end of the tracheal tube body 21 is covered with the tracheal cover 234, so that the tracheal tube 1 body does not leak. The ventilator can be directly used to provide assisted ventilation treatment to the patient, thereby avoiding the need to replace other catheters and repeat catheterization, greatly reducing the risk of nursing and reducing adverse reactions; the first threaded pipe interface When 22 and the second threaded pipe interface 23 are not in use, the connected tracheal cover 234 can be used to cover the interior of the tracheal tube 2 from contamination, thereby improving the safety of the tracheal tube.

A method of using the tracheal intubation kit of the present invention that can remove bronchial blockage under the guidance of a fiberoptic bronchoscope: first, insert the tracheal tube 2 into the corresponding position in the patient's trachea through the laryngoscope, and control the third inflation valve 245 to inject the air into the patient's trachea. The two cuffs are inflated to fix the position of the endotracheal tube 2. Secondly, by placing the fiber branch lens end in the first annular cuff 14 provided at the front end of the blocking tube 1, and controlling the second inflation valve 135 to inflate the first annular cuff 14, the fiber bronchoscope can be fixed. , and then pass the front end of the blocking tube through the endotracheal tube 2. After determining the placement position of the head end of the blocking tube 1 through the guidance of the fiberoptic bronchoscope, inflate the first cuff 13 by controlling the first inflation valve 134 and fix it. After the blocking tube 1 is in position, the first annular cuff 14 is deflated by controlling the second inflation valve 135, and then the bronchoscope is taken out. Finally, the fourth inflation valve 246 is controlled to inflate the second annular cuff 24 provided inside the end of the endotracheal tube 2, so that the second annular cuff 24 fixes the end of the blocked tube 1, and a closed space is formed between the two. , and then connect the ventilator externally through the first threaded pipe interface 22, so that through the above steps, the isolation of the patient's affected side lungs and the ventilation of the patient's healthy side lungs can be completed.

Example 2

Please refer to Figures 8, 9 and 10. Figure 8 is a schematic diagram of the three-dimensional structure of another tracheal intubation kit of the present invention that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope. Figure 9 is a schematic diagram of another tracheal intubation kit of the present invention that can be Figure 10 is a schematic plan view of the air lumen tube of another endotracheal intubation kit that can block the descending bronchus under the guidance of a fiberoptic bronchoscope according to the present invention. This embodiment is basically the same as Embodiment 1. The difference is that in this embodiment, the first annular cuff 14 in the blocking catheter and the second annular cuff 24 in the endotracheal tube 2 are both provided with air cavity tubes 27; The air cavity duct 27 is provided with a plurality of small holes 271; the interior of the air cavity duct 27 is an annular hollow structure, which is built into the wall 17 of the blocking conduit and the conduit wall 26 of the endotracheal tube; The distance between the first annular cuff 14 and the first annular annular cuff and the air cavity tube 27 is 0.2cm-0.6cm respectively; the ends of the blocking catheter and the endotracheal tube 2 are also connected through thin tubes 15. Injection valve 28 of the air cavity pipe 27; the air cavity pipe 27 is respectively provided on the plugged catheter and the endotracheal tube 2. The injection valve 28 is used to inject anesthetic drugs into the pipes through the thin tube 15, and the anesthetic drugs overflow through the small holes 271. Afterwards, topical anesthesia can be performed on the patient's carina, upper and lower glottis, and larynx to reduce the irritation of the carina, greatly reduce the patient's intolerance to the insertion of the endotracheal tube, and greatly reduce the need for sedative drugs. The use is conducive to the rapid recovery of patients.

The present invention is a tracheal intubation kit that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope. By utilizing the complementary cooperation between the blocking tube and the tracheal tube, the affected side can be blocked by the blocking tube when the patient is undergoing one-lung ventilation treatment. The endotracheal tube in the lungs effectively blocks both lungs and collapses the lung on the affected side, which facilitates minimally invasive thoracoscopic surgery and thoracotomy on the affected side to expose the surgical field, avoid the outflow of blood or sputum, and facilitate ventilation of the unaffected lung. ; The front end of the plugging catheter is curved and arc-shaped, and the first annular cuff is used to fix the lens end of the fiber branch, so that during the insertion process of the plugging catheter, the fiber bronchoscope can be used to guide the insertion, which facilitates inspection and treatment. At the same time, it is more intuitive and convenient for insertion and blocking operations; using the blocking catheter to block the bronchus of the patient's affected side lungs, on the one hand, it facilitates the surgical treatment of the affected side lungs, and on the other hand, it avoids blood or obstruction in the affected side lungs. The sputum flows to the healthy side of the lung, thereby effectively avoiding the risk of infection of the healthy side of the lung. At the same time, if necessary, it can deliver oxygen to the affected side of the lung and complete the suction of blood and secretions.

The front end of the endotracheal tube is a single-lumen tube. Since the insertion only reaches the middle and upper part of the trachea, it can avoid the endotracheal tube from squeezing and irritating the carina between the patient's lungs during the insertion process, thereby alleviating the patient's adverse neurological symptoms. Reflection; control the fourth inflation valve to inflate the second annular cuff inside the end of the endotracheal tube body, so that the second annular cuff can fix the end of the blocked tube, and a gap is formed between the second annular cuff and the blocked tube. Enclosed space; by controlling the first threaded pipe interface located on the end side of the endotracheal tube body to connect to the ventilator, the breathing work of the patient's healthy side lungs can be completed through the endotracheal tube, and the second annular cuff and blockage are used The closed space formed between the ends of the tube prevents the gas in the endotracheal tube from leaking out, so that the patient can continue to block the lungs on the affected side and deliver oxygen to the healthy side of the lungs; the patient needs to continue to work in the intensive care unit. When performing ventilator-assisted breathing, you only need to withdraw the blocked tube and cover the second threaded tube interface at the end of the endotracheal tube body with the tracheal cover, and then the ventilator can be continuously used to provide ventilator-assisted breathing treatment to the patient, thus avoiding the need for The need to replace other catheters and repeat catheterization greatly reduces the risk of invasive procedures and reduces the incidence of adverse events for patients;

The hollow structure of the blocking catheter is designed so that after the catheter body has blocked the bronchus of the affected lung, the cap provided at the bottom of the catheter body can be removed, and the catheter body can be used to exhaust the lungs on the affected side, so that the lungs on the affected side can be exhausted. The whole part is completely collapsed, which is convenient for surgery and treatment; by providing an air cavity pipeline on the blocked tube and tracheal tube, an injection valve is used to inject anesthetic drugs into the pipeline through a thin tube. After the anesthetic drugs overflow through the small hole, the patient can be treated Topical anesthesia is performed on the bronchi and carina, which reduces the irritation of the carina, greatly reduces the patient's intolerance to the insertion of the endotracheal tube, greatly reduces the use of sedative drugs, and is conducive to the patient's rapid recovery.

The above are only the preferred embodiments of the present invention. It should be pointed out that those of ordinary skill in the art can also make several improvements and supplements without departing from the method of the present invention. These improvements and supplements should also be regarded as It is the protection scope of the present invention.

Claims (8)

1. A tracheal intubation kit that can remove bronchial obstruction under the guidance of a fiberoptic bronchoscope. The tracheal intubation kit includes a blocking catheter and a tracheal tube; the blocking catheter includes a catheter body; the surface of the catheter body is provided with Scale mark; a first cuff is provided at the front end of the catheter body; a first annular cuff is provided above the first cuff; and a first annular cuff is provided at the end of the catheter body through thin tubes. The cuff, the first inflation valve and the second inflation valve of the first annular cuff; the bottom of the catheter body is connected with a cap; the main body of the thin tube is located in the wall of the catheter body; the catheter There are also thin steel wires in the inner wall of the body; The tracheal tube includes a tracheal tube body, a first threaded tube interface, a second threaded tube interface, and a second annular cuff; the surface of the tracheal tube body is also provided with scale marks; the front end of the tracheal tube body is located There is a second cuff; the first threaded tube interface is located at the end side of the tracheal tube body; the second threaded tube interface is located at the end of the tracheal tube body; the first threaded interface and the second threaded interface The tracheal caps are respectively connected to the tracheal caps; the second annular cuff is located inside the end of the tracheal tube body; the end of the tracheal tube body is also connected to the second cuff and the second annular cuff through thin tubes. The third inflation valve and the fourth inflation valve; the thin tube body at the end of the endotracheal tube body is located in the tube wall of the endotracheal tube body; the inner wall of the endotracheal tube body is also provided with a thin steel wire; the blocking tube It is placed in the tracheal tube during use; the first cuff and the first annular cuff have an arc structure of 10° to 20°, with a distance of 1cm-2cm between them, and the arc bevel is in line with the first annular cuff. The cuff is in the same plane but opposite; the cross section of the top of the blocking catheter is a blunt structure, and the top of the endotracheal tube is an oblique open structure. 2. The endotracheal intubation kit according to claim 1, characterized in that the blocking catheter is a hollow structure with a diameter of 1mm-4.5mm. 3. The tracheal intubation kit according to claim 1, wherein the tracheal tube is a single-lumen tracheal tube body. 4. The endotracheal intubation kit according to claim 1, wherein a closed space is formed between the second annular cuff and the end of the blocking tube. 5. The endotracheal intubation kit according to claim 1, wherein the first threaded pipe interface is an international standard ventilator interface. 6. The endotracheal intubation kit according to claim 1, wherein the endotracheal tube further includes an air cavity tube and an injection valve. 7. The tracheal intubation kit according to claim 6, characterized in that the air cavity tubes are respectively provided above the first annular cuff and the second cuff, have a hollow annular structure, and are connected with the first annular cuff. The distance between the cuff and the second cuff is 0.2cm-0.6cm respectively, and the injection valve is located at the end of the endotracheal tube body. 8. The endotracheal intubation kit according to claim 6, wherein the air cavity tube and the injection valve are connected to each other, and a plurality of small holes are provided on the surface of the air cavity tube.