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. 24, 1998
Filed:
Jan. 03, 1997
Applicant:
Inventors:
Anna Gunilla Sturrock, Acton, MA (US);
Dale P Devore, Chelmsford, MA (US);
Assignee:
AutoImmune, Inc., Lexington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07K / ; C07K / ; C07K / ;
U.S. Cl.
CPC ...
530356 ; 514-2 ; 530350 ;
Abstract
An method is disclosed for removing Type I collagen-containing tissue adjoining Type II collagen-containing animal tissue comprising treatment of unprocessed Type II collagen-containing tissue in an acidic solution in the presence of an acid proteinase and subjecting the mixture to moderate agitation for a period of time sufficient to cause digestion or separation of the Type I collagen-containing tissue from the Type II collagen-containing tissue. Also disclosed are methods for removing proteoglycans from Type II collagen-containing tissue.