In-vivo drug eluting stent and preparation method

A technology for eluting stents and organisms, applied in the field of drug-eluting stents in vivo, can solve the problems of stents with thrombus and cannot effectively solve the stents at the same time, and achieves the effects of reducing thrombus, promoting endothelial healing, and simplifying the manufacturing process.

Inactive Publication Date: 2021-01-26
绍兴市高砚智生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the existing drug-eluting stents in vivo cannot effectively solve the problem of restenosis in the stent and the occurrence of thrombus in the stent; In vivo drug eluting stent

Method used

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  • In-vivo drug eluting stent and preparation method
  • In-vivo drug eluting stent and preparation method
  • In-vivo drug eluting stent and preparation method

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050] In vivo drug-eluting stent

[0051] The invention provides a drug-eluting stent in a living body, such as figure 1 , figure 2 with image 3 shown, including:

[0052] Frame 1, which includes several elastic limbs 100 crossing each other, each adjacent two elastic limbs 100 have a tendency to deviate from each other, frame 1 is a network ring structure, and the network ring shape is a plurality of elastic limbs cross-woven into a network and ring-shaped;

[0053] the balloon 2 connected between the elastic limbs 100; and

[0054] The drug eluting part 3 embedded outside the frame ...

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Abstract

The invention relates to an in-vivo drug eluting stent which comprises a frame, the frame comprises a plurality of crossed elastic limbs, every two adjacent elastic limbs have the tendency of deviating from each other, the frame is of a net ring structure, and the net ring is formed by weaving a plurality of elastic limbs into a net in a crossed mode and is an annular barrel shape; balloons whichare connected between the elastic limbs; and a drug eluting part which is embedded outside the frame. The in-vivo drug eluting stent provided by the invention can inhibit the proliferation of smooth muscle cells and reduce the occurrence of restenosis in the stent; capture the endothelial progenitor cells in blood flow, the endothelial progenitor cells at the injured position caused by implantingthe instrument are gathered again to promote endothelial healing, reduce thrombus in the stent and promote endothelial repair.

Description

technical field [0001] The invention relates to the technical field of biomedical device sterilization, in particular to a drug-eluting stent in a living body and a method thereof. Background technique [0002] Atherosclerosis is a leading cause of death and disability in the world. Atherosclerosis leads to stenosis and even occlusion of the lumen, resulting in ischemia and necrosis of the blood-supplying tissue, which is disabled or life-threatening. Coronary atherosclerotic disease (CAD) is the most common and serious life-threatening disease in modern society. In the United States, 1.15 million people die of myocardial infarction every year, of which 600,000 (40) die of acute myocardial infarction. The incidence of myocardial infarction in China is increasing year by year, seriously endangering people's health and increasing social medical burden. [0003] Coronary artery disease can be treated with percutaneous transluminal coronary angioplasty (PTCA). More than 1 mill...

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Application Information

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IPC IPC(8): A61F2/82A61L31/08A61L31/10A61L31/14A61L31/16
CPCA61F2/82A61F2250/0067A61L31/08A61L31/10A61L31/14A61L31/148A61L31/16A61L2300/412A61L2300/416A61L2300/42A61L2300/602A61L2300/606A61L2400/18A61L2420/02A61L2420/08
Inventor 费小涛向燕琼邓素清
Owner 绍兴市高砚智生物科技有限公司
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