Preparation method of chitosan tubular bracket
Title：
Preparation method of chitosan tubular bracket
Application Number：
 200410009091
Application Date：
 2004/05/14
Announcement Date：
 2005/01/26
Pub. Date：
 2007/02/07
Publication Number：
 1568904
Announcement Number：
 1298298
Grant Date：
 2007-2-7
Granted Pub. Date：
 2007-2-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 A61F 2/04, A61L 27/20
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Zhang Xiufang, Wang Aijun, Gong Yandao
Key Words：
 Preparation method, chitosan, tubular bracket
Abstract：
 A preparation method of chitosan tubular stent, which uses chitosan yarn as raw material, preparing hollow net tube structures of different specifications by means of spinning, and then inserting corresponding core model, coating chitosan, collagen, or gelatin biomacromolecule liquor, withdrawing the core model after drying, and obtaining a chitosan tube with wall thickness of approximately 0.5~2.5mm and inside diameter of 1~20mm. The method is simple and easy, and is suitable for mass production. The chitosan tube prepared by the invention has the characteristics of thick wall, controllable inside diameter, optional length, modeling in one go, good elasticity and intensity, and firm saturation in operation. All the raw materials in the preparation process adopts natural biodegradable materials, with their metabolic products having no toxic and side effects on human body, and are suitable for being used as tissue repair materials or tissue engineering stent materials.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
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