Single-lung collapse bronchial catheter

Abstract

The utility model discloses a single-lung collapse bronchial catheter, which relates to the related technical field of medical equipment and comprises a catheter, a through air cavity pipeline is arranged in the catheter, and a cuff inflation cavity is arranged on one side of the air cavity pipeline of the catheter; one end of the catheter is connected with a cuff, the other end of the catheter is connected with an adapter used for being connected with the outside, and the adapter is connected with an inflation structure communicated with an inflation cavity of the cuff; the utility model solves the problems that the existing plugging trachea cannula cannot realize real single-lung collapse; no strict operation sequence exists; when the device is used in cooperation with the laryngeal mask, the risk of displacement of the laryngeal mask is reduced; the size of the catheter is increased, so that short-time natural lung collapse and an independent collapse channel can be realized through the inner cavity of the catheter, mechanical ventilation and plugging are not influenced, and the operation time can be shortened; the three cavities of the main pipe are independent of one another, so that plugging, collapsing and visual functions are not mutually influenced.

Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, and in particular to a single-lung collapse bronchial tube. Background Technology

[0002] Currently, there are two main methods for achieving unilateral lung collapse in clinical practice. One method involves inserting a endotracheal tube into the bronchus on the side of the surgery, then performing bilateral lung collapse through the main trachea or endotracheal intubation channel. After the lung collapse is completed, the endotracheal tube on the side of the surgery is used to block the lung, and then the breathing circuit is reconnected to provide mechanical ventilation to the healthy lung.

[0003] Another method is unilateral lung collapse caused by lateral bronchial tube occlusion.

[0004] Endotracheal intubation and endotracheal tube occlusion solution: After inserting the endotracheal tube into the patient's airway, the occlusion endotracheal tube is inserted along the endotracheal tube lumen. The occlusion endotracheal tube is inserted to the location in the operated lung where occlusion is needed. Then, lung collapse is performed through the endotracheal tube channel. After the lung collapse is ideal, the operated lung is occluded, and mechanical ventilation is then initiated on the healthy lung. This approach has a very strict sequence, and both lungs are connected to the main trachea when lung collapse is achieved. It cannot achieve true single-lung collapse, mechanical ventilation cannot be initiated during the collapse process, and the airway pressure is relatively high during the operation.

[0005] The laryngeal mask airway (LMA) with endotracheal intubation and bronchial occlusion solution involves inserting the LMA into the affected laryngopharynx, followed by the insertion of the occlusion endotracheal tube. The occlusion endotracheal tube is then inserted to the desired location on the operated lung. Lung collapse is then initiated through the main tracheal passage. Once the lung has collapsed to the desired state, the operated lung is occluded, and mechanical ventilation is then initiated on the healthy lung. This solution is very similar to Solution 1, with a very strict sequence. While both lungs are connected to the main trachea during lung collapse, true single-lung collapse is not possible. Mechanical ventilation cannot be initiated during the collapse process, and the LMA is prone to displacement.

[0006] Double-lumen endotracheal intubation solution: A double-lumen endotracheal tube is inserted into the patient's trachea, the occlusion chamber is placed in the bronchus of the affected lung, the ventilation chamber ventilates the healthy lung, and the occlusion chamber seals the affected lung. However, its disadvantages include the large size of double-lumen endotracheal tubes; the smallest available on the market is 26Fr, and there is no matching size for use with infants and young children. Furthermore, due to its large size, double-lumen endotracheal tubes can cause significant injury to the patient during use, and the airway pressure is high during the procedure, limiting its use to adult patients.

[0007] The double-lumen endotracheal tube with publication number CN112642037A, structurally speaking, features a double-lumen tube structure (main tube 11 + auxiliary tube 12). While achieving ventilation and occlusion, its outer diameter is significantly larger than that of a single-lumen tube, resulting in greater patient trauma during insertion. After the main tube 11 is inserted into the trachea, ventilation can lead to elevated airway pressure. The dual-cuff design (main cuff 21 and auxiliary cuff 22) increases the complexity of the procedure. Insertion via fiberoptic endoscope 31 is cumbersome, and the cuff position cannot be accurately determined by the fiberoptic endoscope under the main tube 11, affecting the accuracy of occlusion. Utility Model Content

[0008] Purpose of the invention: The purpose of this utility model is to provide a single-lung collapsed bronchial tube to solve the problems of existing bronchial tubes, which have strict operating procedures, poor sealing effect, and are prone to tracheal damage to patients.

[0009] Technical solution:

[0010] A single-lung collapsed bronchial catheter includes a catheter with a through-hole air chamber tube inside the catheter, and a cuff inflation chamber on one side of the air chamber tube; one end of the catheter is connected to a cuff, and the other end of the catheter is connected to a conversion connector for external connection, and the conversion connector is connected to an inflation structure communicating with the cuff inflation chamber.

[0011] Preferably, the outer diameter of the catheter is 4~9mm and the wall thickness is 0.35~1.0mm.

[0012] Preferably, the catheter also has a suture cavity, and a camera module is provided in the suture cavity near the cuff.

[0013] Preferably, the adapter is also connected to a data connector, which extends into the buried wire cavity and connects to the camera module.

[0014] Preferably, the inflation structure includes an automatic inflation device and an inflation device.

[0015] Preferably, the cuff is connected to an insertion end, and the angle between the insertion end and the cuff is the Tampa angle.

[0016] Preferably, the adapter and the laryngeal mask are detachably connected.

[0017] Beneficial effects: It solves the problem that current endotracheal occlusion intubation cannot achieve true single-lung collapse; there is no strict procedure sequence; it reduces the preoperative occlusion procedure time; and when used in conjunction with a laryngeal mask airway, it reduces the risk of laryngeal mask airway displacement.

[0018] Larger catheter sizes allow for short-term natural lung collapse through the catheter lumen. The separate collapse channel does not affect mechanical ventilation or occlusion, thus reducing surgical time.

[0019] The three cavities are each independent, so that the blockage, collapse and visibility functions do not affect each other. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the catheter of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of this utility model.

[0023] Reference numerals: 1. Catheter; 2. Cuff; 3. Adapter; 4. Data connector; 5. Inflation device; 6. Automatic inflation device; 11. Insertion end; 12. Handheld end; 13. Cuff inflation chamber; 14. Embedded suture chamber; 15. Lung collapse chamber and suction chamber; 21. Locking connector; 31. Camera module. Detailed Implementation

[0024] To make the technical solution of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figure 1-3 As shown, a single-lung collapse bronchial catheter includes a catheter 1, which is the main body. In this application, the outer diameter of the catheter 1 is selected to be 4-9 mm. Different outer diameter catheters can achieve different single-lung spontaneous collapse times. In this application, the spontaneous collapse time of the catheter 1 with an outer diameter of 5 mm is 25 s; the spontaneous collapse time of the catheter 1 with an outer diameter of 6 mm is 18 s; and the spontaneous collapse time of the catheter 1 with an outer diameter of 7 mm is 12 s, which is far greater than the spontaneous collapse time of existing double-lumen bronchioles.

[0027] Furthermore, the catheter 1 is provided with an air cavity channel 15, which is the main channel. The catheter 1 is also provided with a suture embedding cavity 14 and a cuff inflation cavity 13. The inner diameter of the air cavity channel 15 is much larger than that of the suture embedding cavity 14 and the cuff inflation cavity 13. The air cavity channel 15 is used for venting the lungs in case of lung collapse. At the same time, the air cavity channel 15 can also be used for suctioning sputum from the patient's lateral lungs. The suture embedding cavity 14 is used to place the transmission line. The catheter 1 is provided with a camera module 31 at one end of the suture embedding cavity 14 to facilitate imaging and observation of the patient's lungs. In another embodiment, the suture embedding cavity 14 may not contain the camera module 31, and the device can be a conventional type without visual functions.

[0028] In this application, the wall thickness is between 0.35 and 1 mm, preferably 0.6 mm. A suitable wall thickness can better distribute the inner diameter of the air cavity pipe 15, the embedded wire cavity 14 and the bladder inflation cavity 13, which is convenient to use and can improve the natural collapse time.

[0029] A cuff 2 is connected to one end of the catheter 1. The cuff 2 and the cuff inflation chamber 13 are connected. The cuff 2 is inflated through the cuff inflation chamber 13 to achieve the effect of blocking the lung on the operated side. The air inlet pipe of the cuff 2 and the air outlet pipe of the lung on the operated side, namely the air chamber pipe 15 and the cuff inflation chamber 13, are not connected and can work at the same time. The blocking and air outlet work can be carried out at the same time, which is more efficient.

[0030] Furthermore, the connection angle between the cuff 2 and the catheter 1 is the Tampa angle. The front end of the cuff 2 is connected to the insertion end 11. The tip of the insertion end is guided by the Tampa angle, making it easier and safer for the catheter to enter the affected lung, reducing the risk of airway injury to the patient. At the same time, the front end of the insertion end plug is made of silicone and the thickness is increased, making the insertion end more flexible and reducing tracheal damage caused by improper insertion.

[0031] The height difference between the cuff 2 and the bending position of the insertion end 11 is shortened to 12~17mm. After the insertion end 11 is bent, the height difference with the catheter 1 conforms to the anatomical dimensions of the anterior-posterior diameter of the human trachea, thereby reducing the difficulty of catheter placement.

[0032] One end of the catheter 1 is connected to the cuff 2, which has a height of 26mm to 32mm. The other end of the catheter 1 is connected to a conversion connector 3, which is used to connect other tools, including an inflation structure. In this application, the inflation structure includes an inflation device 5 and an automatic inflation device 6. Both the inflation device 5 and the automatic inflation device 6 are connected through a pipe and the conversion connector 3. The conversion connector 3 connects the cuff inflation chamber 13 to the inflation device 5 and the automatic inflation device 6. Both the inflation device 5 and the automatic inflation device 6 can perform inflation and deflation operations, which is convenient for medical staff to perform inflation and deflation operations independently.

[0033] Furthermore, a data connector 4 is also connected to the adapter 3. The wires of the data connector 4 pass through the adapter 3 and extend into the implantation cavity 14. The wires of the data connector 4 are connected to the camera module 31 to enable observation of the patient's operated lung.

[0034] In this embodiment, when in use, the catheter 1 is inserted into the patient's body, and the adapter 3 is located at the patient's mouth. The adapter 3 can be connected with the laryngeal mask airway to prevent the catheter from moving arbitrarily.

[0035] The adapter 3 is also connected to a handheld terminal 12, which allows for better control.

[0036] During use: 1. Begin after laryngeal mask airway (LMA) endotracheal intubation is completed; 2. Lubricate the outer wall of the catheter; 3. Insert the catheter along the LMA ventilation cavity; connect the adapter to the LMA connector; 4. Pass the catheter through the LMA, glottis, trachea, and carina to reach the bronchus of the operated lung; 5. Rotate the locking connector to fix the catheter position; 6. Inflate the cuff using the inflation device or automatic inflation device to block the operated lung; 7. Collapse the operated lung.

[0037] There is no strict order for mechanical ventilation, occlusion, and lung collapse; lung collapse is achieved through the main trachea of ​​the endotracheal tube, resulting in true single-lung collapse; when used in conjunction with a laryngeal mask airway, the occlusion can be directly positioned after the endotracheal tube reaches the occlusion location, and it is connected to the laryngeal mask airway, reducing the risk of displacement of the two instruments, and the airway is not high during the operation; the diameter of the endotracheal tube is smaller than that of a double-lumen endotracheal tube, resulting in less damage to the patient's airway during use; mechanical ventilation can be resumed immediately after occlusion, reducing the interruption time of mechanical ventilation.

[0038] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A single-lung collapsed bronchial catheter, comprising a catheter (1), characterized in that: The conduit (1) has a through air chamber pipe (15) inside, and the conduit (1) has a cuff inflation chamber (13) on one side of the air chamber pipe (15); one end of the conduit (1) is connected to a cuff (2), and the other end of the conduit (1) is connected to a conversion connector (3) for connection with the outside, and the conversion connector (3) is connected to an inflation structure that communicates with the cuff inflation chamber (13).

2. The single-lung collapsed bronchial tube according to claim 1, characterized in that: The outer diameter of the catheter (1) is 4~9mm and the wall thickness is 0.35~1.0mm.

3. The single-lung collapsed bronchial tube according to claim 1, characterized in that: The catheter (1) also has a suture cavity (14), and a camera module (31) is provided on the side of the suture cavity (14) near the sheath (2).

4. A single-lung collapsed bronchial tube according to claim 3, characterized in that: The adapter (3) is also connected to a data connector (4), which extends into the buried wire cavity (14) and connects to the camera module (31).

5. A single-lung collapsed bronchial tube according to claim 1, characterized in that: The inflation structure includes an automatic inflation device (6) and an inflation device (5).

6. A single-lung collapsed bronchial catheter according to claim 1, characterized in that: The cuff (2) is connected to an insertion end (11), and the angle between the insertion end (11) and the cuff (2) is the Tampa angle.

7. A single-lung collapsed bronchial tube according to claim 1, characterized in that: The adapter (3) and the laryngeal mask are detachably connected.

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