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:
Jan. 13, 2009
Filed:
Jun. 27, 2003
Applicants:
Charles J. Doillon, Quebec, CA;
May Griffith, Carp, CA;
Fengfu LI, Ottawa, CA;
Shigeto Shimmura, Kawasaki, JP;
Inventors:
Charles J. Doillon, Quebec, CA;
May Griffith, Carp, CA;
Fengfu Li, Ottawa, CA;
Shigeto Shimmura, Kawasaki, JP;
Assignee:
Universite Laval, Quebec, Quebec, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 2/00 (2006.01); A61F 2/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A membrane for corneal implant or keratoprosthesis comprising a biological polymer and a polyacrylamide is described. The mixture of both polymers produces a hydrogel that becomes a transparent film or membrane upon drying. The resulting device and tissue engineered implants are useful for biomedical applications of the cornea, such as tissue repair and transplantation.