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. 15, 2016
Filed:
Sep. 17, 2012
Edwards Lifesciences Corporation, Irvine, CA (US);
Ralph Schneider, Irvine, CA (US);
Bin Tian, Irvine, CA (US);
Jeffrey S. Dove, Santa Ana, CA (US);
Jeff Cohen, Irvine, CA (US);
Ivan Jankovic, Costa Mesa, CA (US);
John F. Migliazza, Belmont Shores, CA (US);
Gregory A. Wright, Orange, CA (US);
James Young, Ladera Ranch, CA (US);
Louis A. Campbell, Santa Ana, CA (US);
Edwards Lifesciences Corporation, Irvine, CA (US);
Abstract
Methods for the conditioning of bioprosthetic material employ bovine pericardial membrane. A laser directed at the fibrous surface of the membrane and moved relative thereto reduces the thickness of the membrane to a specific uniform thickness and smoothes the surface. The wavelength, power and pulse rate of the laser are selected which will smooth the fibrous surface as well as ablate the surface to the appropriate thickness. Alternatively, a dermatome is used to remove a layer of material from the fibrous surface of the membrane. Thinning may also employ compression. Stepwise compression with cross-linking to stabilize the membrane is used to avoid damaging the membrane through inelastic compression. Rather, the membrane is bound in the elastic compressed state through addition cross-linking. The foregoing several thinning techniques may be employed together to achieve strong thin membranes.