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Balloon catheter

A balloon catheter and balloon technology, applied in catheters, balloon catheters, dilators, etc., can solve problems such as increased pain, incomplete dilation of bifurcations, vascular dissection, etc., to avoid pain, reduce surgical complexity, and save surgery. effect of time

Pending Publication Date: 2019-02-26
HANGZHOU WEIQIANG MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment method has the following disadvantages: insufficiency of expansion in the middle of the bifurcation; excessive tearing of blood vessels caused by multiple expansions; high cost of using multiple balloon catheters; the patient is intubated multiple times, and the pain increases; repeated intubation dilation, The operation is complicated, takes a long time, and the doctor's work intensity is high
This treatment method has the following disadvantages: the blood vessel in the posterior segment of the bifurcation is severely torn, which can easily lead to vascular dissection, and then other means of remedy (such as implanting a stent) are required; secondary stenosis

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] See figure 1 , the balloon catheter provided by Embodiment 1 of the present invention includes a push catheter and at least two expandable balloons located at the distal end of the push catheter.

[0030] The pushing catheter includes a catheter body 100 and a branch body 200 disposed at the distal end of the catheter body 100 . The branch pipe body 200 includes at least two branches. Specifically, in this embodiment, the branch pipe body 200 has a Y-shaped structure, and has a first branch 210 and a second branch 220 respectively extending in different directions. The expandable balloon includes at least one first balloon 300 disposed at the distal end of the first branch 210 and at least one second balloon 400 disposed at the distal end of the second branch 220 . Specifically, in this embodiment, a first balloon 300 is provided at the distal end of the first branch 210 , and a second balloon 400 is provided at the distal end of the second branch 220 . In this way, ...

Embodiment 2

[0051] The structure of the balloon catheter provided in the second embodiment is basically the same as the structure of the balloon catheter provided in the first embodiment. The difference is that, in the balloon catheter provided in the second embodiment, the structure of the catheter body is different from that of the balloon catheter in the first embodiment.

[0052]Specifically, in this embodiment, the catheter body includes an outer tube (ie, the first tube body) and at least one inner tube (ie, the second tube body) worn in the outer tube. The first pipe body and the second pipe body are fixedly connected together and cannot move relative to each other. The distal end of the inner tube or the outer tube is respectively connected to the proximal end of the first branch or the proximal end of the second branch. The outer tube or / and the inner tube are provided with a first guide wire cavity, a second guide wire cavity, a first filling cavity and a second filling cavity ...

Embodiment 3

[0062] The structure of the balloon catheter provided in the third embodiment is basically the same as the structure of the balloon catheter provided in the first embodiment. The difference is that in the balloon catheter provided in the third embodiment, the structure of the catheter body is different from that of the balloon catheter in the first embodiment.

[0063] Specifically, see Figure 11 , the catheter body 100 of the pushing catheter includes a first tube body 110 and a second tube body 120 . The first tube body 110 and the second tube body 120 can move relative to each other along the axial direction. The distal end of the first tube body 110 is connected to the proximal end of the first branch 210 . The distal end of the second tube body 120 is connected to the proximal end of the second branch 220 . Thus, the first branch 210 and the second branch 220 in the branch pipe body 200 can move axially and radially at the same time. That is, the position between the...

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Abstract

The invention discloses a balloon catheter which comprises a push catheter and at least two expandable balloons at the distal end of the push catheter. The push catheter comprises a catheter body anda branch body disposed at a distal end of the catheter body. The branch body comprises at least a first branch and a second branch extending in different directions respectively. The angle between theaxial direction of the first branch and the axial direction of the second branch is (0 DEG, 180 DEG). The expandable balloon comprises at least one first balloon disposed distally of the first branchand at least one second balloon disposed distally of the second branch. The proximal end diameter of the working segment of at least one of the first balloon and the second balloon is less than the diameter of the remainder of the working segment of the balloon. The balloon catheter of the invention can expand the narrow lesion of the bifurcated blood vessel at one time, reduce the number of intubation, make the expansion fully, avoid the tear of the blood vessel, save the operation time, and reduce the operation cost and complexity.

Description

technical field [0001] The invention belongs to the technical field of medical devices and relates to a balloon catheter. Background technique [0002] Balloon catheter is a tool for endovascular angioplasty, which has been widely used in clinical medicine of percutaneous transluminal angioplasty and percutaneous transluminal coronary angioplasty. The existing balloon catheter structure is usually a single-balloon catheter with an expandable balloon at the distal end of the catheter. When using this single-balloon catheter to treat bifurcation vascular lesions, there are two commonly used treatment methods: [0003] One way is to dilate the anterior part of the bifurcation and the posterior part of the bifurcation with a single-balloon catheter first, and then dilate the branch vessels with a single-balloon catheter. This treatment method has the following disadvantages: insufficiency of expansion in the middle of the bifurcation; excessive tearing of blood vessels caused ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10
CPCA61M25/1002A61M25/1011A61M25/104A61M29/00A61M2025/1045A61M2025/1015
Inventor 张庭超李敬
Owner HANGZHOU WEIQIANG MEDICAL TECH CO LTD
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