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Expansible coronary stent provided with collagen tectorial membrane

A collagen and cardiovascular technology, applied in stents, coatings, medical science, etc., can solve problems such as increasing thrombosis and prolonging the time of vascular endothelialization.

Inactive Publication Date: 2015-04-08
DONGGUAN REVOLUTION PROD DESIGN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, while improving hemodynamic abnormalities, the capsule also increases the contact area between the stent and the blood vessel, prolongs the time of vascular endothelialization, and makes the stent exposed to the blood for a long time as a foreign body, which increases the chance of thrombosis

Method used

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  • Expansible coronary stent provided with collagen tectorial membrane
  • Expansible coronary stent provided with collagen tectorial membrane
  • Expansible coronary stent provided with collagen tectorial membrane

Examples

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Embodiment Construction

[0022] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments, but the embodiments of the present invention are not limited thereto.

[0023] refer to figure 1 and figure 2 , an expandable cardiovascular stent with a collagen coating, comprising a mesh-like stent 1 and a capsule (not shown) attached to the mesh-like stent. Both the tubular stent 1 and the coating have elongation; the coating covers the grid of the tubular stent 1 and its outer and inner surfaces. The mesh 2 of the mesh tubular stent 1 is corrugated or prismatic, and other shapes can also be selected. It should be understood that the present invention only limits the shape of the net 2, which can be flexibly changed according to needs.

[0024] refer to image 3 The net 2 of the net tubular stent 1 is provided with pores 3 so as to facilitate the carrying of medicines on the net 2 . Or the surface of the net 3 is set to be uneven to incr...

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Abstract

The invention provides an expansible coronary stent provided with a collagen tectorial membrane. The expansible coronary stent comprises a net tube-like stent and an integument attached to the net tube-like stent, wherein both the net tube-like stent and the integument have an elongation rate. The integument is arranged in grids, the outer side surface and the inner side surface of the net tube-like stent in a coating manner. The net tube-like stent is coated with collagen which is a main component of connective tissues such as skin, blood vessels, bones, teeth and cartilages, so the net tube-like stent is relatively good in biocompatibility and adaptability, can be used for fully isolating a lesion location from blood flow, can be degraded, absorbed and utilized by the human body and does not affect the endothelialization time of the blood vessels, so the expansible coronary stent has a quite important significance.

Description

technical field [0001] The invention relates to the technical field of cardiovascular stents, in particular to an expandable cardiovascular stent with a collagen coating. Background technique [0002] With the development of science and technology, vascular stents are constantly being updated, from bare stents without any drugs, to drug-coated stents, to degradable stents, the therapeutic effect is getting better and higher, and the safety is getting higher and higher. [0003] Vascular stents can be divided into bare type, coated type and covered type according to the surface treatment. The bare surface is only polished; the coated type is coated with heparin, titanium oxide and other substances on the metal surface; the coated type is coated with a degradable or non-degradable polymer film on the outside of the metal stent. [0004] The covered stent not only preserves the supporting function of the ordinary stent, but also can effectively improve the abnormal blood flow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L31/10A61L31/14A61L31/16
CPCA61L31/10A61L31/14A61F2/90A61L31/022C08L89/06
Inventor 李扬德
Owner DONGGUAN REVOLUTION PROD DESIGN
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