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. 02, 1990
Filed:
Jan. 02, 1987
Applicant:
Inventors:
Robert T McNally, Marietta, GA (US);
Albert Heacox, Marietta, GA (US);
Kelvin G Brockbank, Marietta, GA (US);
Harvey L Bank, Charleston, SC (US);
Assignee:
CryoLife, Inc., Atlanta, GA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D / ;
U.S. Cl.
CPC ...
62 65 ; 435-1 ; 435-2 ; 128D / ;
Abstract
A method of freezing, storing and thawing collagen-rich tissue, such as heart valves. The method includes a freezing profile for freezing the tissue down to the temperature of liquid nitrogen with minimal tissue damage due to ice crystal formation. Heart valves cryopreserved according to the present process exhibit a high cell viability when thawed and are suitable for implanting in human patients.