The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 17, 2026

Filed:

Jul. 27, 2022
Applicant:

Changchun Institute of Applied Chemistry, Chinese Academy of Science, Jilin, CN;

Inventors:

Xiaoniu Yang, Jilin, CN;

Shuo Li, Jilin, CN;

Hongying Lv, Jilin, CN;

Lei Yang, Jilin, CN;

Jiangshan Tu, Jilin, CN;

Haiyang Wu, Jilin, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B29C 64/00 (2017.01); A61L 27/18 (2006.01); A61L 27/50 (2006.01); B29C 41/12 (2006.01); B29C 41/22 (2006.01); B29K 25/00 (2006.01); B29K 67/00 (2006.01); B29K 75/00 (2006.01); B29L 23/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61L 27/18 (2013.01); A61L 27/507 (2013.01); B29C 41/12 (2013.01); B29C 41/22 (2013.01); B29K 2025/06 (2013.01); B29K 2067/003 (2013.01); B29K 2067/046 (2013.01); B29K 2075/00 (2013.01); B29L 2023/001 (2013.01); B29L 2031/7532 (2013.01);
Abstract

Provided is a preparation method for a tube. The method comprises the following steps: a) adding a polymer solution into a poor solvent, such that the polymer diffuses on the liquid level of the poor solvent, so as to obtain a polymer film, wherein the solvent in the polymer solution is dissolved in the poor solvent; b) curling the polymer film on the liquid level of the poor solvent by using a mold to obtain a bar; and c) removing the mold to obtain a tube. The present invention further provides the use of the above tubular as an artificial tubular tissue.


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