Combined lateral-limiting-type trachea and bronchus catheter

Abstract

The invention discloses a combined lateral-limiting-type trachea and bronchus catheter. The combined lateral-limiting-type trachea and bronchus catheter comprises a lateral-limiting-type trachea catheter and a bronchus blocking pipe, wherein a lateral opening is formed at the lower end of the lateral-limiting-type trachea catheter, and the opening direction is not coaxial with the trachea catheter and points to the side surface. The combined lateral-limiting-type trachea and bronchus catheter has the advantages that while the normal ventilation function of the trachea catheter is kept, at the upper end of the trachea catheter, the bronchus blocking pipe can be accurately and simply guided to one side through direction change by virtue of a lateral limiting part and the lateral opening at the lower end, and is easily fed into the target lateral bronchus, so that the selective use of left and right lung isolation and single lung ventilation in clinic is met. With the device, the placing and positioning of the bronchus catheter become simple, accurate and reliable.

Description

technical field [0001] The invention relates to a trachea and bronchus catheter, in particular to a combined side-restricted trachea and bronchus catheter. It is mainly suitable for anesthesia in thoracic surgery, etc., and can provide a simple, effective and reliable technique for double-lung isolation and single-lung ventilation. Background technique [0002] One-lung ventilation can provide lung isolation and facilitate surgical field exposure and intraoperative respiratory management. There are three types of lung isolation technology devices commonly used to provide one-lung ventilation: 1. Double lumen endobronchial tube (DLT), 2. Bronchial obstructor (BB), and 3. Single lumen endobronchial tube (ET). ET was widely used in early thoracic surgery, but with the development of the first two techniques, ET has been gradually eliminated. [0003] The two technical devices commonly used today still have different limitations. [0004] Double-lumen endobronchial tube (DLT)...

AI Technical Summary

Problems solved by technology

[0005] 1) The total tube diameter is thick, the texture is relatively hard, the relative damage to the trachea and tissues is large, and the irritation is strong

[0006] 2) Can not be used for a long time

If the patient needs to continue respiratory support after the operation, the catheter is often removed and replaced with a single-lumen endotracheal catheter, and the replacement process not only increases tissue damage, but also may cause other accidents due to the difficulty of re-intubation

[0007] 3) During the operation, due to body position changes and surgical operations, sometimes the position of the catheter will shift and slip out of the bronchi, making it difficult to adjust the position, which will affect the ventilation method required by the operation and increase the difficulty of the operation

[0008] 4) The positioning of the intubation is technically difficult, and the precise positioning still depends on the fiberoptic bronchoscope

[0010] 1) It is difficult to accurately place the target bronchus, and it is necessary to use a bronchoscope to accurately locate

[0011] 2) It takes a long time to complete the tube placement and it is easy to slip off with body position changes, and it is difficult to position the tube again after slipping off

[0012] 3) The application of anesthesia in right thoracic surgery is often limited

[0013] 4) There are problems of complex manufacturing process and high cost

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