CN219354984U

CN219354984U - Quick-positioning bronchus plugging catheter

Info

Publication number: CN219354984U
Application number: CN202320985639.4U
Authority: CN
Inventors: 罗少波; 罗炜婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-07-18
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to a quick-positioning bronchus plugging catheter, which comprises an outer catheter and an inner catheter detachably inserted in the outer catheter; the outer catheter comprises a first indication bag, a first inflation tube and a first balloon, and one end of the first inflation tube penetrates through the outer wall of the outer catheter and is communicated with the first balloon; the inner catheter comprises a second indication bag, a second inflation tube and a second balloon, and one end of the second inflation tube penetrates through the outer wall of the inner catheter and is communicated with the second balloon; the insertion end of the outer catheter is provided with a bevel end formed by beveling; the pipe wall of the insertion end of the outer catheter, which is positioned at the bevel end, is provided with a strip-shaped notch along the insertion direction; the insertion end of the outer catheter is inserted into the bronchus of the healthy side lung, and the elastic expansion of the strip-shaped notch forms a quick positioning structure which is easy to shrink and insert and then is opened at the bronchus insertion part after the insertion; the inner catheter is inserted into bronchus of the patient side lung, and after the second balloon is inflated, the bar-shaped notch forms a supporting and positioning structure of the second balloon. Has the advantages of easy insertion and quick positioning.

Description

Quick-positioning bronchus plugging catheter

Technical Field

The utility model relates to the field of medical equipment, in particular to a quick-positioning bronchial occlusion catheter.

Background

Tracheal intubation is a device used in the medical treatment of patients in need of anesthesia, artificial ventilation or other assisted breathing. The tracheal cannula is suitable for chest surgery and needs lung isolation technology, one catheter of the tracheal cannula is inserted into the patient side lung to isolate, and the other catheter is inserted into the healthy side lung to perform single-lung ventilation. When the tracheal cannula in the prior art is inserted in place, the outer catheter end is only blocked at the bifurcation part of the left bronchus and the right bronchus, so that the tracheal bulge is extremely easily damaged by the outer catheter end, and meanwhile, the outer catheter end is easily shifted to be blocked, so that the ventilation of the lung on the healthy side is influenced.

The structure of the insertion end of the tracheal cannula embodying the prior art is shown in figure 1, a hanging hole 11 is commonly arranged on the wall of the insertion end of the outer catheter, and the hanging hole has the function of supporting and positioning the inflatable plugging saccule of the inner catheter so as not to shift; however, the provision of the hanging hole seriously hinders the insertion and extraction of the inner catheter, and the outer catheter often needs to be rotated in an adjustment direction when being inserted, and the rotation of the outer catheter can move the inner catheter passing through the hanging hole to displace the balloon of the inner catheter.

Disclosure of Invention

The utility model aims to solve the problems that the outer catheter end is difficult to insert and is easy to shift in the prior art, and the other problem is that the inner catheter is not influenced to insert and withdraw, and the second balloon can be supported and positioned.

The purpose of the utility model is realized in the following way: a quick-positioning bronchus plugging catheter comprises an outer catheter and an inner catheter detachably inserted in the outer catheter; the outer catheter comprises a first indication bag, a first inflation tube and a first balloon, and one end of the first inflation tube penetrates through the outer wall of the outer catheter and is communicated with the first balloon; the inner catheter comprises a second indication bag, a second inflation tube and a second balloon, and one end of the second inflation tube penetrates through the outer wall of the inner catheter and is communicated with the second balloon; the insertion end of the outer catheter is provided with a bevel end formed by beveling; the pipe wall of the insertion end of the outer catheter, which is positioned at the bevel end, is provided with a strip-shaped notch which is approximately U-shaped along the insertion direction; the tube wall at the bevel end forms an elastic telescopic structure through a strip-shaped notch, the insertion end of the outer catheter is inserted into the bronchus of the healthy side lung, and a rapid positioning structure is formed that the insertion end of the outer catheter is easy to shrink and insert and then is opened at the bronchus insertion part after the insertion; the inner catheter is inserted into bronchus of the patient side lung, and after the second balloon is inflated, the bar-shaped notch forms a supporting and positioning structure of the second balloon.

The utility model adopts the structure that the pipe wall of the outer catheter, which is positioned at the inclined port end, is provided with the approximately U-shaped strip-shaped notch along the insertion direction, thereby being easy to shrink and insert and automatically open, being capable of rapidly positioning and not shifting, and being capable of limiting the inner catheter balloon to slide into the outer catheter due to the strip-shaped notch; thus, one structure realizes multiple functions; the device is fast to position and does not shift, repeated plugging and unplugging are avoided, and lung injury and infection are reduced; in addition, as the inner catheter is inserted and pulled out without resistance, the direction is easy to control, and the operation can be basically carried out without a matched diving scope.

The utility model is further illustrated by the following examples in conjunction with the accompanying description.

Drawings

FIG. 1 is a schematic view of the structure of the insertion end of a prior art endotracheal tube;

FIG. 2 is a schematic diagram of the structure of one embodiment of the present utility model;

FIG. 3 is a schematic view of the embodiment of FIG. 1 beginning insertion into the lungs;

fig. 4 is a schematic view of the embodiment of fig. 1 after insertion into the lungs.

In the figure, 1, an outer catheter; 2. a first indicator bladder; 3. a first inflation tube; 4. a first balloon; 5. an inner catheter; 6. a second indicator bladder; 7. a second inflation tube; 8. a second balloon; 9. a bevel end; 10. a strip-shaped notch; 11. a hanging hole; 12. the trachea of the patient; a. strengthening the lung; b. the lung is on the side.

Description of the embodiments

Referring to fig. 2, the present embodiment is a rapidly positionable bronchial occlusion catheter comprising an outer catheter 1 and an inner catheter 5 removably inserted into the outer catheter; the outer catheter comprises a first indication balloon 2, a first inflation tube 3 and a first balloon 4, and one end of the first inflation tube penetrates through the outer wall of the outer catheter and is communicated with the first balloon; the inner catheter comprises a second indication balloon 6, a second inflation tube 7 and a second balloon 8, and one end of the second inflation tube penetrates through the outer wall of the inner catheter and is communicated with the second balloon; the insertion end of the outer catheter has a bevel end 9 formed by beveling; the pipe wall of the insertion end of the outer catheter at the bevel end is provided with a strip-shaped notch 10 which is approximately U-shaped along the insertion direction; the tube wall at the bevel end forms an elastic telescopic structure through a strip-shaped notch, the insertion end of the outer catheter is inserted into the bronchus of the healthy lung a, and a rapid positioning structure is formed that the insertion end of the outer catheter is easy to shrink and insert and then is opened at the bronchus insertion part after the insertion; the inner catheter is inserted into the bronchus of the patient side lung b, and after the second balloon is inflated, the bar-shaped notch forms a supporting and positioning structure of the second balloon.

Use of the present utility model, referring to fig. 3, the outer catheter is inserted into the patient's trachea 12, the inner catheter is inserted into the bronchi of the patient's side lung b, the outer catheter is rotated in the adjustment direction, and is inserted into the bronchi of the healthy side lung a, as shown in fig. 4; the insertion degree of the inner catheter is adjusted, the second balloon 8 of the inner catheter is inflated, the strip-shaped notch supports and positions the second balloon, the first balloon 4 of the outer catheter is inflated, and the tracheal intubation is positioned.

The remaining structure of the outer and inner conduits of the present utility model is substantially compatible with commercial products. The utility model is applicable to different surgical objects, the inner catheter can be detached, and the outer catheter can be used independently.

Claims

1. A quick-positioning bronchus plugging catheter comprises an outer catheter (1) and an inner catheter (5) detachably inserted in the outer catheter; the outer catheter comprises a first indication balloon (2), a first inflation tube (3) and a first balloon (4), and one end of the first inflation tube penetrates through the outer wall of the outer catheter and is communicated with the first balloon; the inner catheter comprises a second indication balloon (6), a second inflation tube (7) and a second balloon (8), and one end of the second inflation tube penetrates through the outer wall of the inner catheter and is communicated with the second balloon; the insertion end of the outer catheter is provided with a bevel end (9) formed by beveling; the method is characterized in that:

the pipe wall of the insertion end of the outer catheter, which is positioned at the bevel end, is provided with a strip-shaped notch (10) which is approximately U-shaped along the insertion direction;

the tube wall at the bevel end forms an elastic telescopic structure through a strip-shaped notch, and the insertion end of the outer catheter is inserted into the bronchus of the healthy side lung (a) to form a rapid positioning structure that the insertion end of the outer catheter is easy to shrink and insert and then is opened at the bronchus insertion part after the insertion;

the inner catheter is inserted into the bronchus of the patient side lung (b), and after the second balloon is inflated, the bar-shaped notch forms a supporting and positioning structure of the second balloon.