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Dilatation balloon and balloon dilatation catheter

A technology for dilating catheters and balloons, which is applied in the direction of balloon catheters, catheters, medical science, etc., can solve the problems of reducing catheter passability, high balloon compliance, and affecting the effect of balloon expansion valves, etc., to ensure passability, Effect of Reducing Left Ventricular Volume and Stroke Volume

Pending Publication Date: 2019-08-16
SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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  • Summary
  • Abstract
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Problems solved by technology

However, there are still problems with this design: first, the structure of the catheter is complex, technically difficult to achieve, and also reduces the passage of the catheter; second, the outer surface of the valve balloon is not fixed or bound, so that the expanded balloon may be deformed, The high compliance of the balloon affects the effect of the balloon to expand the valve, and the calcification of the aortic valve is easy to puncture the balloon

Method used

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  • Dilatation balloon and balloon dilatation catheter
  • Dilatation balloon and balloon dilatation catheter
  • Dilatation balloon and balloon dilatation catheter

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Embodiment Construction

[0029] In order to make the purpose, advantages and characteristics of the present invention clearer, the following in conjunction with the attached Figure 1a-1e The expansion balloon and the balloon expansion catheter proposed by the present invention are further described in detail. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0030] As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense including "and / or" unless the content clearly dictates otherwise. The term "proximal end" generally refers to the end of the corresponding member close to the operator, and "distal end" refers to the end of the corresponding member away from the operator...

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Abstract

The invention provides a dilatation balloon and a balloon dilatation catheter, can help to ensure the effect of balloon dilatation valves, and can reduce the structural complexity of the balloon dilatation catheter and ensure the accessibility of the catheter. The dilatation balloon comprises a balloon body with an intermediate passage and a valve membrane arranged on the intermediate passage. Thevalve membrane shrinks or expands after being stressed so that the intermediate passage can realize unidirectional communication.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an expansion balloon and a balloon expansion catheter. Background technique [0002] Since Inoue successfully carried out percutaneous balloon valvuloplasty (PBV) in 1984, PBV has become one of the important methods for the treatment of heart valve diseases. Percutaneous balloon valvuloplasty has the advantages of less trauma, safety, and definite curative effect, and it has replaced open heart valve incision / dissection to a certain extent. For patients with severe calcific aortic stenosis and surgical contraindications or high risks, transcatheter aortic valve implantation (TAVI) is suitable, and the valve balloon is delivered through the femoral artery to deliver the artificial heart valve to the aortic valve area Open, so as to complete the implantation of the artificial valve and restore the function of the valve. The expansion and dredging of the stenosis by the va...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2433A61M25/1011A61M25/10A61B2017/00783
Inventor 刘琛姚映忠岳斌
Owner SHANGHAI MICROPORT CARDIOFLOW MEDTECH CO LTD
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