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:
Nov. 10, 2020
Filed:
Jan. 04, 2017
Yaping LI, Ningbo, CN;
Yaping Li, Ningbo, CN;
Sang Li, Ningbo, CN;
Haijiao Mao, Ningbo, CN;
Tingting Tang, Ningbo, CN;
Jun Fu, Ningbo, CN;
Hanfeng Xiong, Ningbo, CN;
Lei Nie, Ningbo, CN;
Jianmin Zheng, Ningbo, CN;
Guofeng Zhang, Ningbo, CN;
Other;
Abstract
A method for preparing a degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold by subjecting a calcined bovine cancellous bone mineral porous scaffold to a treatment using a ternary system containing a magnesium source, a sulfur source and a phosphorus source, taking out and drying, and subjecting to a high-temperature calcination. The degradable magnesium-containing calcium phosphate-calcium sulfate porous composite biological scaffold has good three-dimensional interconnected mesh structure, osteoconductivity, degradability, good mechanical strength and biocompatibility, simultaneously. At the same time, calcium sulfate whiskers with larger length-diameter ratio grow in the mesh, thereby increasing the specific surface area of the material and possibly improve the adhesion of cells. The composite biological scaffold may have potential osteoinductivity due to the effective addition of the osteogenic active ionized magnesium and the calcium sulfate which can produce a local high-calcium environment when degraded.