CN211068564U - Improved right-side double-cavity bronchial catheter - Google Patents

Abstract

The utility model discloses an improved right double-lumen bronchial catheter, which comprises a right catheter and a left catheter. The right catheter and the left catheter are arranged side by side, and the total length of the right catheter and the left catheter is between 15-42 centimeters. A bronchial cuff inflation tube is provided at the upper end of the right conduit away from the left conduit, the bronchial cuff inflation tube is provided with a bronchial cuff inflation port at the end away from the right conduit, and the left conduit is far away from the right conduit. The upper end is provided with a tracheal cuff inflation tube, and the end of the tracheal cuff inflation tube away from the left catheter is provided with a tracheal cuff inflation port. The utility model is simple in structure and reasonable in design, avoids the contradiction between double-lung isolation and insufficient ventilation in the process of single-lung ventilation, benefits both surgical operation and anesthesia management, has simple operation, strong clinical practicability, simplifies the manufacturing process, and can basically Right-sided dual-chamber ventilation to replace existing airway management medical devices.

Description

A modified right double lumen bronchial catheter

technical field

The utility model relates to the technical field of medical equipment, in particular to an improved right double-lumen bronchial catheter.

Background technique

Thoracic surgery requires intraoperative separation of the two lungs and the ability to perform one-lung ventilation. At present, double-lumen bronchial catheters are mostly used, and the right double-lumen trachea has the following disadvantages:

1. The positioning of the intubation is difficult. Because the right main bronchus is very short, it cannot fully accommodate the bronchial cuff and its distal catheter. Without the assistance of fiberoptic bronchoscopy, some patients have difficulty in intubation and cannot accurately align the bronchial air port of the human body. It is easy to damage the airway and block the opening of the main bronchus of the right upper lung;

2. Difficulty in intraoperative management: if the catheter is inserted too deep, it will be difficult to maintain intraoperative oxygen saturation;

3. Difficulty in fixing the catheter: Since the lateral decubitus is required for thoracic surgery, the intraoperative position change can easily cause the catheter to shift;

4. Waste of financial resources and resources: The double-lumen bronchial catheter is expensive, and the model is mainly determined by height and weight and imaging evaluation. However, it is difficult to accurately evaluate the bronchial tube when there is mediastinal tumor compression or congenital variation. Change the model, resulting in greater economic losses;

5. The production process is complicated: the overlapping part of the right bronchial cuff and the ventilation hole of the right bronchial cuff is a special arc structure, and the production cost is high.

In order to solve the above-mentioned problems in single-lung ventilation, one of the methods most of clinical anesthesiologists use is to use the left double-lumen bronchial catheter for single-lung ventilation. The bronchial catheter affects the surgeon's operation and is not conducive to the smooth operation of the operation. In addition, a right-sided double-lumen bronchial catheter must be used in the following situations: Abnormal access to the left common bronchus, such as intraluminal tumor or extraluminal compression, descending thoracic aortic aneurysm; surgical procedures involving the left common bronchus, such as left pneumonectomy , Left lung sleeve resection, left lung transplantation, left bronchial rupture.

Utility model content

The purpose of the present utility model is to provide an improved right-side double-lumen bronchial catheter to solve the problems raised in the above-mentioned background art.

To achieve the above object, the utility model provides the following technical solutions:

1. an improved right side double-lumen bronchial catheter, comprising a right catheter and a left catheter, arranged side by side between the right catheter and the left catheter, and the upper end of the right catheter away from the left catheter side is provided with a bronchial cuff inflation tube One end of the bronchial cuff inflation tube away from the right conduit is provided with a bronchial cuff inflation port, the upper end of the left conduit away from the right conduit is provided with a tracheal cuff inflation tube, and the tracheal cuff inflation tube is far away from the left conduit One end of the bronchial cuff is provided with a tracheal cuff inflation port, and the upper ends of the bronchial cuff inflation tube and the tracheal cuff inflation tube are provided with a backflow prevention mechanism, and the backflow prevention mechanism is composed of a connecting bag, a spring and a baffle. Both the cuff inflatable tube and the tracheal cuff inflatable tube are provided with a connecting bag, a spring is arranged on the lower end surface of the connecting bag, and a baffle is arranged on the upper end of the spring. The bronchial cuff inflatable tube and the tracheal cuff The balloon inflation tube is provided with a deflation tube at the lower end of the connecting bag, the right catheter and the left catheter are provided with a thread-like structure at the upper end of the bronchial cuff inflation tube, and the upper end of the thread-like structure is provided with a breathing circuit interface, the The lower ends of the right conduit and the left conduit are all provided with a tracheal cuff, the lower end of the right conduit is provided with a bronchial cuff, and the right conduit is provided with a diamond-shaped mesh tube at the lower end of the bronchial cuff, and its length is 2-3 cm, The length of the tube diameter is smaller than the diameter of the bronchial tube at the upper end of the bronchial cuff, and a plurality of air guide holes are arranged around the diamond-shaped mesh tube.

Preferably, the bronchial cuff inflation tube and the tracheal cuff inflation tube are arranged at a right angle of ninety degrees.

Preferably, the bronchial cuff inflation port, the tracheal cuff inflation port and the thread-like structure are all set as arc surfaces at the connecting end of the breathing circuit interface.

Preferably, the upper end of the baffle is conical.

Preferably, a rubber plug is provided at the air outlet end of the air release pipe.

Preferably, the diameter of the diamond-shaped mesh tube is smaller than the inner diameter of the right catheter.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The modified right double-lumen bronchus corresponds to the teeth through the thread-like structure at the distal end of the left and right catheters, which can basically ensure that the catheter position remains unchanged during the operation, so as to avoid the difficulty of ventilation caused by the change of catheter position. and bilateral lung isolation failure, simplifying intraoperative airway management;

2. The rhombic mesh tube wall makes the catheter placement and fixation not limited by the direction and diameter of the tube, which solves the problem that the existing right double-lumen bronchial catheter does not match the anatomical structure of Chinese people;

3. The utility model is provided with a backflow prevention mechanism on the upper ends of the bronchial cuff inflatable tube and the tracheal cuff inflatable tube, and the anti-return mechanism is composed of a connecting bag, a spring and a baffle. The tube is provided with a deflation tube at the lower end of the connecting bag. Through the action of the anti-reflux mechanism and the air release tube, the backflow of the bronchial cuff inflation tube and the tracheal cuff inflation tube can be effectively prevented, so that the bronchial cuff inflation tube and the tracheal cuff inflation tube can be effectively prevented. Inflating and deflating the inflation tube is easier and more convenient.

Description of drawings

Fig. 1 is the overall front view of a kind of improved right double-lumen bronchial catheter of the present utility model;

2 is a schematic diagram of the internal structure of an improved right side double-lumen bronchial connecting bag of the present invention;

Figure 3 is a front view of an improved right side double-lumen bronchial bronchial cuff inflation port of the present invention.

In the figure: 1, right catheter; 2, left catheter; 3, bronchial cuff inflation tube; 31, bronchial cuff inflation port; 4, tracheal cuff inflation tube; 41, tracheal cuff inflation port; 5, anti-reflux mechanism ; 51, connecting bag; 52, spring; 53, baffle; 6, air release tube; 61, rubber stopper; 7, thread-like structure; 71, breathing circuit interface; 8, tracheal cuff; 9, bronchial cuff; 10 , diamond-shaped mesh tube; 101, air guide holes.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: an improved right-side double-lumen bronchial catheter, comprising a right catheter 1 and a left catheter 2, and the right catheter 1 and the left catheter 2 are placed between the right catheter 1 and the left catheter 2 by thermal fusion Parallel connection, the total length of the right catheter 1 and the left catheter 2 is between 15-42 cm according to the size of the model, the upper end of the right catheter 1 away from the left catheter 2 is attached with a bronchial cuff inflation tube 3, and a bronchial cuff inflation tube 3 One end away from the right catheter 1 is provided with a bronchial cuff inflation port 31, the upper end of the left catheter 2 away from the right catheter 1 is attached with a tracheal cuff inflation tube 4, and one end of the tracheal cuff inflation tube 4 away from the left catheter 2 is provided with a trachea. The cuff inflation port 41, the bronchial cuff inflation tube 3 and the tracheal cuff inflation tube 4 have diameters between 10-17mm and 0.7-1.2mm respectively, and the tube walls of the bronchial cuff inflation tube 3 and the tracheal cuff inflation tube 4 The thickness is between 0.5-2.5mm, and the size is consistent with the inner diameter of the Chinese bronchus and trachea. The upper ends of the bronchial cuff inflatable tube 3 and the tracheal cuff inflatable tube 4 are equipped with a backflow prevention mechanism 5, which is composed of a connecting bag 51, a spring 52 and a baffle 53. The bronchial cuff inflatable tube 3 and the tracheal cuff A connecting bag 51 is sealed on the inflation tube 4, a spring 52 is installed on the lower end surface of the connecting bag 51, a baffle 53 is installed on the upper end of the spring 52, and the bronchial cuff inflation tube 3 and the tracheal cuff inflation tube 4 are connected. The lower end of the bag 51 is sealed and connected with the air release tube 6, the right catheter 1 and the left catheter 2 are sealed and connected with a thread-like structure 7 at the part of the upper end of the bronchial cuff inflatable tube 3 corresponding to the tooth, and the upper end of the thread-like structure 7 is provided with a breathing circuit. Interface 71, the lower ends of the right catheter 1 and the left catheter 2 are equipped with a tracheal cuff 8, the lower end of the right catheter 1 is equipped with a bronchial cuff 9, and the right catheter 1 is equipped with a diamond-shaped mesh tube 10 at the lower end of the bronchial cuff 9, Its length is 2-3 cm, and the diameter of the tube is slightly smaller than the diameter of the bronchial tube at the upper end of the bronchial cuff 9 .

The bronchial cuff inflatable tube 3 and the tracheal cuff inflatable tube 4 are arranged at a right angle of 90 degrees, which is conducive to adjustment within a certain range.

The bronchial cuff inflation port 31, the tracheal cuff inflation port 41 and the thread-like structure 7 are all set as arc surfaces at the connecting end of the breathing circuit interface 71.

The upper end of the baffle 53 is set in a conical shape, which is beneficial to increase the sealing performance.

A rubber plug 61 is provided at the air outlet end of the air release pipe 6 , which is beneficial to control the air circulation of the air release pipe 6 .

The diameter of the diamond-shaped mesh tube 10 is smaller than the inner diameter of the right catheter 1 , which is beneficial to the ventilation of the right catheter 1 .

Working principle: When using the device, the right catheter 1 and the left catheter 2 are fully lubricated by applying paraffin cotton ball or lidocaine gel, exhausted through the tracheal cuff 8 and bronchial cuff 9, and the patient is fully inhaled with oxygen and denitrogenated. After general anesthesia was used to induce muscle relaxation, the distal end of the right catheter 1 was first bent concavely forward, and the tip of the right catheter 1 was seen through the glottis with the aid of a laryngoscope, and then the right catheter was rotated 90° to the right or 270° to the left. While rotating, insert it forward. According to auscultation or fiberoptic bronchoscopy, confirm that the bronchial cuff 9 enters the right side, and inflate the tracheal cuff 8 to perform bilateral lung ventilation. The function of the tracheal cuff 8 and the bronchial cuff 9 can be quickly and effectively achieved. The rapid air intake and deflation, the device can effectively prevent the backflow of the bronchial cuff inflatable tube 8 and the tracheal cuff inflatable tube 9, and make the bronchial cuff The balloon inflation tube 8 and the tracheal cuff inflation tube 9 are more simple and convenient to inflate and deflate, which can basically ensure that the position of the catheter remains unchanged when the body position is changed during the operation, and can be quickly and effectively connected to the human ventilation trachea, thereby avoiding the change of the catheter position. Difficult ventilation and failure of double-lung isolation simplify intraoperative airway management, solve the problem that the existing right double-lumen bronchial catheter does not match the anatomical structure of Chinese people, and benefit both surgical operation and anesthesia management, and the operation is simple and clinical. Strong practicability and simplified production process.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. An improved right side double-lumen bronchial catheter, comprising a right catheter (1) and a left catheter (2), characterized in that: the right catheter (1) and the left catheter (2) are arranged side by side, and the The upper end of the right conduit (1) away from the left conduit (2) is provided with a bronchial cuff inflation tube (3), and the end of the bronchial cuff inflation tube (3) away from the right conduit (1) is provided with a bronchial cuff inflation tube. The mouth (31), the upper end of the left conduit (2) away from the right conduit (1) side is provided with a tracheal cuff inflation tube (4), and the tracheal cuff inflation tube (4) is far away from the left conduit (2). One end is provided with a tracheal cuff inflation port (41), the upper ends of the bronchial cuff inflation tube (3) and the tracheal cuff inflation tube (4) are provided with a backflow prevention mechanism (5), the backflow prevention mechanism (5) ) is composed of a connecting bag (51), a spring (52) and a baffle plate (53). A spring (52) is provided on the lower end surface of the connecting bag (51), a baffle plate (53) is provided on the upper end of the spring (52), the bronchial cuff inflation tube (3) and the tracheal cuff inflation tube (4) A deflation tube (6) is provided at the lower end of the connecting bag (51), and the right catheter (1) and the left catheter (2) are provided with a thread-like structure ( 7), the upper end of the thread-like structure (7) is provided with a breathing circuit interface (71), the lower ends of the right conduit (1) and the left conduit (2) are provided with a tracheal cuff (8), The lower end of the catheter (1) is provided with a bronchial cuff (9), and the right catheter (1) is provided with a diamond-shaped mesh tube (10) at the lower end of the bronchial cuff (9), the length of which is 2-3 cm, and the diameter of the pipe is 2-3 cm. The length is smaller than the diameter of the bronchial tube at the upper end of the bronchial cuff (9), and a plurality of air guide holes (101) are provided around the diamond-shaped mesh tube (10). 2. An improved right-side double-lumen bronchial catheter according to claim 1, characterized in that: there is a ninety-degree right angle between the bronchial cuff inflation tube (3) and the tracheal cuff inflation tube (4) set up. 3. An improved right side double-lumen bronchial catheter according to claim 1, characterized in that: the bronchial cuff inflation port (31), the tracheal cuff inflation port (41) and the thread-like structure (7) The connection ends of the breathing circuit interface (71) are all set as circular arc surfaces. 4. An improved right-side double-lumen bronchial catheter according to claim 1, characterized in that: the upper end of the baffle plate (53) is configured in a conical shape. 5. An improved right-side double-lumen bronchial catheter according to claim 1, characterized in that: a rubber plug (61) is provided at the air outlet end of the air release pipe (6). 6. An improved right-sided double-lumen bronchial catheter according to claim 1, characterized in that: the diameter of the diamond-shaped mesh tube (10) is smaller than the inner diameter of the right catheter (1).

Images