Catheter balloon and catheter

A catheter balloon, balloon technology, applied in the direction of catheters, balloon catheters, medical science, etc., to achieve the effect of avoiding rupture

Inactive Publication Date: 2015-04-29
TOKAI MEDICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diameter of balloons using materials with higher elasticity (such as latex or silicone) can be made arbitrarily large, resulting in the problem that instruments or devices are required to accurately control the deployment of the inflatable balloon. diameter
Therefore, the balloon moves freely, so there is a problem that extremely high skill and attention are required to place the balloon at a predetermined position

Method used

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  • Catheter balloon and catheter
  • Catheter balloon and catheter
  • Catheter balloon and catheter

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Hereinafter, the catheter balloon 10, the catheter 100, and the method for preparing the catheter balloon 10 according to one embodiment will be described in detail with reference to the accompanying drawings. figure 1 A is a schematic diagram showing a state in which only the shoulder 23 of the catheter balloon 10 according to the embodiment is deployed. figure 1 B is a schematic diagram showing a state in which the waist portion 30 of the balloon is inflated. figure 2 is a schematic diagram showing a state in which the waist portion 30 of the catheter balloon 10 according to the embodiment is substantially inflated. In this specification, the term "deployment" means that the balloon expands only by an increase in its internal pressure, and does not mean that the balloon itself is substantially inflated to inflate. The term "inflated" means that the balloon expands itself so that the diameter becomes larger. The term "stretched" means that the heated plastic film is...

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Abstract

[Problem] To provide a catheter balloon which, when treating calcific aortic stenosis, rheumatic and congenital aortic stenosis, etc., facilitates control of the expanded outer diameter of the stretchable balloon, enables effectively prevention of balloon migration, and can be easily fixed in a prescribed position. [Solution] This catheter is provided with: a balloon (20) having shoulder sections (23) formed from a non-stretch material or a low-stretching material, and a stretchable waist section (30); and a catheter main body (70) to which the balloon (20) is attached.

Description

technical field [0001] The present invention relates to catheter balloons and catheters. Background technique [0002] The etiology of aortic stenosis is, for example, acquired calcific aortic stenosis or rheumatic aortic stenosis, as well as congenital aortic stenosis. For example, in the case of calcific aortic stenosis, when the lesion progresses, the calcification of the valve leaflet develops, causing the valve leaflet to gradually harden. As a result, the range of movement of the valve leaflets is gradually restricted, leading to cardiac insufficiency. For this reason, in cases of severe leaflet stenosis, surgical treatment of the stenosis is required. [0003] For the treatment of this disease, balloon valvuloplasty is proposed as a less invasive procedure for expanding narrowed valves such as calcified aortic stenosis, or rheumatic aortic stenosis and congenital aortic stenosis. The current conventional procedure for the treatment of calcified aortic stenosis is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10
CPCA61B2017/22098A61M25/1002A61M25/1029A61M29/02A61M2025/1059A61M2025/1084
Inventor 筒井宣政筒井康弘村木康宏
Owner TOKAI MEDICAL PROD
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