Preparation method of meshy degradable blood vessel stent

A vascular stent and mesh stent technology are applied in the field of mesh degradable vascular stent and its preparation, and achieve the effects of good ray transmittance, favorable for accurate tracking, and improved toughness
CN102048602BInactive Publication Date: 2012-11-07TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2012-11-07
Estimated Expiration
Not applicable Β· inactive patent
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Abstract

The invention relates to the technical field of medical apparatuses and instruments, in particular to a meshy degradable blood vessel stent and a preparation method thereof. The meshy degradable blood vessel stent is woven by degradable polymer filaments and has a certain shape; the filament is composed of degradable polymer and a certain content of auxiliary agent; a degradable polymer solution containing a drug and / or an X-ray developer forms a film on the surface of the meshy stent; and the degradable blood vessel stent has an automatically swelling function, has enough intensity to resistthe resilience force of the arterial wall, and can automatically degrade after finishing a certain time of mechanical support on the organ tube wall; and the degraded product has no toxic and side effect on the tissue, thus a secondary operation for taking out the conduit is unnecessary, and the treatment and diagnosis on the vascular diseases are enhanced through coating the drug or the X-ray developer.
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Description

technical field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a mesh degradable vascular stent and a preparation method thereof. Background technique

[0002] Interventional therapy is an emerging treatment method between surgical and medical treatments, including endovascular intervention and non-vascular interventional therapy. Vascular stents belong to vascular interventional therapy and are mainly used to treat vascular stenosis.

[0003] Domestic medical catheters used for interventional treatment of vascular stenosis are basically metal stents. The surface of the metal stent used initially is bare metal. Although the bare metal stent meets the mechanical performance requirements, it has poor blood compatibility after being inserted into the human body. In addition, bare metal stents will release heavy metal ions in the blood, and these heavy metal ions will promote the formation of thrombus. At present, the coated...

Claims

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