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:
Sep. 08, 2009
Filed:
Apr. 14, 2006
Reynolds G. Gorsuch, Yountville, CA (US);
Henry Grage, Alpharetta, GA (US);
Harold H. Handley, Jr., Encinitas, CA (US);
Harold W. Peters, Martinez, CA (US);
Jacob C. Kearns, Martinez, CA (US);
Reynolds G. Gorsuch, Yountville, CA (US);
Henry Grage, Alpharetta, GA (US);
Harold H. Handley, Jr., Encinitas, CA (US);
Harold W. Peters, Martinez, CA (US);
Jacob C. Kearns, Martinez, CA (US);
Transvivo, Inc., Napa, CA (US);
Abstract
A plasmapheresis and/or ultrafiltration membrane comprises elongated hollow fibers each fiber having an interior lumen extending along the fiber length, the fiber wall having a plurality of zones between the inner and outer wall surfaces, each of the zones having a mass density different than the mass density of an adjacent zone. The fiber wall is characterized by having a lower mass density zone at the inner wall surface and a higher mass density zone at the outer wall surface. The fiber is further characterized by having an average elongation breaking force strength of at least about 0.2 lbs. and an average elongation of at least about 45%.