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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.:

US 11696974 B1

PDFFull Text
Date of Patent:
Jul. 11, 2023

Filed:

Jul. 12, 2019

Method for preparing a functionally gradient material for guided periodontal hard and soft tissue regeneration

Applicant:

Sichuan University, Chengdu, CN;

Inventors:

Jidong Li, Chengdu, CN;

Shu'e Jin, Chengdu, CN;

Yubao Li, Chengdu, CN;

Yi Zuo, Chengdu, CN;

Chen Yuan, Chengdu, CN;

Assignee:

Sichuan University, Chengdu, CN;

Attorney:

Bayramoglu Law Offices LLC

Primary Examiner:

Leo B Tentoni

Int. Cl.
CPC ...
B29C 41/22 (2006.01); B29C 64/112 (2017.01); B29C 64/118 (2017.01); B29C 70/68 (2006.01); B29C 70/78 (2006.01); B33Y 10/00 (2015.01); D01D 1/02 (2006.01); D01D 7/00 (2006.01); D01D 11/06 (2006.01); D01F 6/70 (2006.01); D01F 6/84 (2006.01); D01F 6/96 (2006.01); A61L 27/56 (2006.01); A61L 27/46 (2006.01); A61L 27/58 (2006.01); D01F 1/10 (2006.01); D01F 6/92 (2006.01); D04H 1/728 (2012.01); D01D 5/00 (2006.01); B32B 37/14 (2006.01); D01F 6/62 (2006.01); C08L 67/04 (2006.01); C08L 89/00 (2006.01); B29K 67/00 (2006.01); B29K 73/00 (2006.01); B29K 75/00 (2006.01);
U.S. Cl.
CPC ...
A61L 27/56 (2013.01); A61L 27/46 (2013.01); A61L 27/58 (2013.01); B32B 37/144 (2013.01); D01D 5/003 (2013.01); D01D 5/0038 (2013.01); D01D 5/0084 (2013.01); D01F 1/10 (2013.01); D01F 6/625 (2013.01); D01F 6/92 (2013.01); D04H 1/728 (2013.01); B29K 2005/00 (2013.01); B29K 2067/04 (2013.01); B29K 2067/043 (2013.01); B29K 2067/046 (2013.01); B29K 2073/00 (2013.01); B29K 2075/00 (2013.01); C08L 67/04 (2013.01); C08L 89/00 (2013.01); D10B 2331/04 (2013.01); D10B 2331/041 (2013.01); D10B 2331/10 (2013.01); D10B 2331/30 (2013.01);
Abstract

A functionally gradient material for guided periodontal hard and soft tissue regeneration includes a 3D printed scaffold layer and an electrospun fibrous membrane layer. The content of hydroxyapatite in the 3D printed scaffold layer is higher than the content of hydroxyapatite in the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is larger than the pore size of the electrospun fibrous membrane layer. The pore size of the 3D printed scaffold layer is 100-1000 μm, and the fiber diameter of the electrospun fibrous membrane layer is 300-5000 nm. The electrospun fibrous membrane layer is in a random distribution or an oriented arrangement or has a mesh structure. The thickness of the electrospun fibrous membrane layer is 0.08-1 mm.

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