Medical balloon and preparation method thereof

A balloon and medical technology, applied in the field of medical devices, can solve the problem of easy falling off of stents, and achieve the effects of reducing the risk of falling off, facilitating processing, and avoiding the problem of falling off.

Inactive Publication Date: 2018-01-23
SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
View PDF11 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a medical balloon to solve the problem that the stent is easy to fall off in the prior art

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The core idea of ​​the present invention is: a layer of damping material is provided on the outer surface of the balloon, so that the friction coefficient of the outer surface with the damping material is greater than that of the outer surface without the damping material, so as to increase the distance between the bracket and the balloon. The purpose of frictional resistance between. Compared with the prior art, the invention solves the shedding problem of the stent by changing the physical properties of the balloon surface, does not increase the passing outer diameter of the balloon, and is easy to process and shape.

[0042] In order to make the purpose, advantages and characteristics of the present invention clearer, the following in conjunction with the attached Figure 1-9 The medical balloon proposed by the present invention is further described in detail. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
hardnessaaaaaaaaaa
thicknessaaaaaaaaaa
angleaaaaaaaaaa
Login to view more

Abstract

The invention provides a medical balloon and a preparation method of the medical balloon. The medical balloon comprises an inner layer and an outer layer, wherein the outer layer at least partially covers the inner layer, the inner layer has a first friction coefficient, the outer layer has a second friction coefficient, and the second friction coefficient is greater than the first friction coefficient. For the medical balloon, the falling problem of a stent is solved by changing the physical attribute of the surface of the balloon, the passing outer diameter of the balloon is not increased, processing and forming are also convenient, meanwhile, the frictional resistance suffered by the stent is relatively high, falling seldom occurs, and the breakdown resistance is good. Particularly, theinner layer of the medical balloon is made of a first material, the outer layer is made of a second material, the hardness of the second material is smaller than the hardness of the first material, the lower the hardness is, the higher the friction coefficient is, therefore, the outer layer formed by the material with relatively low hardness is beneficial for improving the frictional resistance between the balloon and the stent, thus the falling problem of the stent can be avoided, in addition, the structure is simple, and the processing is convenient.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a medical balloon for dilating blood vessels. Background technique [0002] At present, percutaneous coronary intervention (PCI) has become the mainstream treatment method for the treatment of myocardial ischemia, angina pectoris, arrhythmia and other heart diseases. Among them, methods such as percutaneous balloon coronary angioplasty (PTCA) and coronary artery stent implantation have been widely used. Although coronary artery stent implantation can successfully solve the problem of postoperative restenosis, stent fall-off is still one of the most difficult and difficult to prevent complications during clinical operation. [0003] Theoretically, the anti-falling ability of the stent depends on the resistance between the stent and the balloon used to fix the stent, including friction and static positive pressure; the former is related to the friction coefficient between ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/958B29C55/22
Inventor 岳斌姚映忠朱笑蒙王婷胡燕
Owner SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap