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:
Jul. 01, 1997
Filed:
Feb. 21, 1995
John F Lontz, Wilmington, DE (US);
Fibrin Corporation, Wilmington, DE (US);
Abstract
A process for producing a fibrinogen concentrate for use as a tissue adhesive from mammalian plasma includes freezing the plasma to a temperature of at most about -20.degree. C. for less than four hours in a container having a surface to volume ratio of from about 4.38:1 to about 1.65:1 reciprocal centimeters, thereby producing frozen plasma; thawing the frozen plasma at a temperature of at least about 4.degree. C. for a time sufficient to attain about 5% to about 95% residual icing, thereby producing thawed plasma; and centrifuging the thawed plasma to produce a fibrinogen concentrate having a solids content of about 6% to about 44% solids by weight of the concentrate.