CN217187420U

CN217187420U - Catheter capable of adjusting pressure of catheter wall

Info

Publication number: CN217187420U
Application number: CN202220799318.0U
Authority: CN
Inventors: 陆耀光; 陶月仙; 范天翔
Original assignee: Hangzhou Normal University
Current assignee: Hangzhou Normal University
Priority date: 2022-04-07
Filing date: 2022-04-07
Publication date: 2022-08-16
Anticipated expiration: 2032-04-07

Abstract

The utility model relates to a catheter of adjustable pipe wall pressure. The air bag of the utility model is arranged at the placing end of the catheter, the catheter comprises an outer tube and an inner tube, and the inner tube is arranged in the outer tube; a closed inflation cavity is formed between the outer pipe and the inner pipe, a rubber catheter is arranged in the inflation cavity, and a first air inlet and a second air inlet are formed at the end, far away from the air bag, of the inflation cavity; the first air inlet is used for inflating the inflation cavity, and the second air inlet is connected with the air bag through a rubber conduit and is used for keeping the air bag from being inflated between the air bag and the inflation cavity; one-way valves are arranged at the tail ends of the first air inlet and the second air inlet; the pipe is made of PP and TPU materials, and the inner pipe wall is slightly thicker than the outer pipe wall. The utility model discloses a PP, TPU material possess better income body and experience. The tail ends of the first air inlet passage and the second air inlet passage are provided with one-way air valves, so that the air and the liquid in the pipe cavity and the air bag can not overflow. The air supply head which can be matched with the existing injector nipple specification is matched, so that air supply of an air inlet passage with a smaller diameter is met; the size of the rubber conduit is slightly smaller than the diameter of the inner pipe, so that the rubber conduit plays a role in guiding.

Description

Catheter capable of adjusting pressure of catheter wall

Technical Field

The utility model belongs to the technical field of medical apparatus, concretely relates to catheter of adjustable pipe wall pressure.

Background

The catheter of clinical application is the rubber material individual layer solid construction mostly at present, supports the official cavity through the hardness of rubber material itself, keeps the pipe diameter unobstructed. During use, the urinary catheter will exert different pressures on the urethral walls of the individual due to the individual's urethral condition. And different experience feelings and application effects are brought. In individuals with small urethral diameters, there is a strong feeling of distending foreign bodies. But for patients with a loose urethra. Failure to ensure good filling performance can lead to urine leakage. Although the catheter with different tube diameters is provided, the clinical use requirements and application effects can not be better solved.

Disclosure of Invention

An object of the utility model is to provide a catheter of adjustable pipe wall pressure.

The utility model comprises an air bag and a catheter, wherein the air bag is arranged at the placing end of the catheter; the catheter comprises an outer tube and an inner tube, wherein the inner tube is arranged in the outer tube; a closed inflation cavity is formed between the outer pipe and the inner pipe, a rubber catheter is arranged in the inflation cavity, and a first air inlet and a second air inlet are formed at the end, far away from the air bag, of the inflation cavity; the first air inlet is used for inflating the inflation cavity, and the second air inlet is connected with the air bag through a rubber conduit and is used for keeping the air bag from being inflated between the air bag and the inflation cavity; one-way valves are arranged at the tail ends of the first air inlet and the second air inlet; the catheter is made of PP and TPU materials, and the inner pipe wall is slightly thicker than the outer pipe wall.

Further, the diameter of the rubber conduit is smaller than the minimum inner diameter of the inflation cavity.

Furthermore, the first air inlet and the second air inlet are matched with an injector for inflation through an inflation conversion head, one end of the inflation conversion head is connected with the injector nipple, and the other end of the inflation conversion head is matched with a one-way valve of the air inlet.

The utility model discloses a have had the PP, the TPU material of better application effect in other medical equipment (keeping somewhere needle tubing), possess better income body and experience. The tail ends of the first air inlet passage and the second air inlet passage are provided with one-way air valves, so that the air and the liquid in the tube cavity and the air bag can not overflow. The air supply head which can be matched with the existing injector nipple specification is matched, so that the air supply of an air inlet passage with a smaller diameter is met; the size of the rubber conduit is slightly smaller than the diameter of the inner pipe, so that the rubber conduit plays a role in guiding.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic view of the gas supply head of the present invention.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in figure 1, the catheter capable of adjusting the pressure of the catheter wall comprises a balloon 1 and a catheter, wherein the balloon 1 is arranged at the built-in end of the catheter (inserted into a human body); the catheter comprises an outer tube 2 and an inner tube 3, wherein the inner tube 3 is arranged in the outer tube 2; as shown in fig. 2, a closed inflation cavity 4 is formed between the outer tube 2 and the inner tube 3, a rubber catheter is arranged in the inflation cavity 4, and a first air inlet 5 and a second air inlet 6 are arranged at the ends of the inflation cavity, which are far away from the air bag; the first air inlet 5 is used for inflating the inflation cavity 4, the second air inlet 6 is connected with the air bag 1 through a rubber conduit and is used for inflating the air bag, and the size of the rubber conduit is slightly smaller than the inner diameter of the inflation cavity 4, so that a guiding effect is achieved. The air bag and the inflation cavity are not ventilated. One-way valves are arranged at the tail ends of the first and second air inlets.

In order to meet the requirement of air supply of an air inlet passage with a smaller diameter, the embodiment is provided with an inflation conversion head as shown in figure 3, one end of the inflation conversion head is connected with a nipple of an injector, and the other end of the inflation conversion head is matched with a one-way valve of an air inlet.

The catheter is made of PP and TPU materials, the inner pipe wall is slightly thicker than the outer pipe wall, a circular pipe cavity (an inflation cavity) is formed between the outer pipe wall and the inner pipe wall, and gas is injected through the first gas inlet to enable the pipe cavity to be full and keep smooth; the air bag at the head end of the catheter is inflated through the second air inlet passage, so that the air bag is kept expanded and is convenient to fix.

When the inflatable tube is used, after the injector is connected with the inflatable conversion head, the first air inlet and the second air inlet respectively inflate the air bag and the tube cavity, so that the air bag is expanded to a fixed position, and the tube cavity is expanded to keep smooth; in the use process, the first air inlet is used for inflating or inhaling the tube cavity to meet the requirement of continuous and adjustable tube wall pressure.

Claims

1. A catheter capable of adjusting the pressure of a catheter wall is characterized in that: comprises a balloon and a catheter, wherein the balloon is arranged at the built-in end of the catheter; the catheter comprises an outer tube and an inner tube, wherein the inner tube is arranged in the outer tube; a closed inflation cavity is formed between the outer pipe and the inner pipe, a rubber catheter is arranged in the inflation cavity, and a first air inlet and a second air inlet are formed at the end, far away from the air bag, of the inflation cavity; the first air inlet is used for inflating the inflation cavity, and the second air inlet is connected with the air bag through a rubber conduit and is used for keeping the air bag from being inflated between the air bag and the inflation cavity; one-way valves are arranged at the tail ends of the first air inlet and the second air inlet; the pipe is made of PP and TPU materials, and the inner pipe wall is slightly thicker than the outer pipe wall.

2. The adjustable wall pressure catheter according to claim 1, wherein: the diameter of the rubber conduit is smaller than the minimum inner diameter of the inflation cavity.

3. The adjustable wall pressure catheter according to claim 1, wherein: the first air inlet and the second air inlet are matched with the injector for inflation through the inflation conversion head, one end of the inflation conversion head is connected with the injector nipple, and the other end of the inflation conversion head is matched with the one-way valve of the air inlet.