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.
Patent No.:
Date of Patent:
Jul. 02, 2024
Filed:
Jan. 31, 2019
Northwest University, Shaanxi, CN;
Daidi Fan, Shaanxi, CN;
Yang Li, Shaanxi, CN;
Chenhui Zhu, Shaanxi, CN;
Chanyuan Yang, Shaanxi, CN;
Liping Jia, Shaanxi, CN;
Xiaoxuan Ma, Shaanxi, CN;
Jianya Yan, Shaanxi, CN;
NORTHWEST UNIVERSITY, Shaanxi, CN;
Abstract
The present invention relates to a polyvinyl alcohol hydrogel having an asymmetric pore size. the pore size of the upper surface of the polyvinyl alcohol hydrogel is 1-30 μm, the pore size of lower surface thereof is 50-300 μm, and the pore size of the hydrogel gradually increases from the upper surface to the lower surface. The polyvinyl alcohol hydrogel in the present invention has excellent biocompatibility, and has functions of blocking bacteria, anti-adhesion, the absorption of exudate, promoting wound healing, observing in situ of wound healing process and the like.