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:
Oct. 16, 2018
Filed:
Aug. 21, 2015
Applicant:
Abbott Cardiovascular Systems Inc., Santa Clara, CA (US);
Inventors:
Syed F. A. Hossainy, Hayward, CA (US);
Manish B. Gada, Santa Clara, CA (US);
Assignee:
Abbott Cardiovascular Systems Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 49/04 (2006.01); B29C 69/00 (2006.01); B29C 55/26 (2006.01); A61F 2/915 (2013.01); B29K 67/00 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B29C 69/001 (2013.01); A61F 2/915 (2013.01); B29C 55/26 (2013.01); A61F 2002/91533 (2013.01); A61F 2002/91558 (2013.01); A61F 2210/0004 (2013.01); A61F 2210/0071 (2013.01); A61F 2240/001 (2013.01); B29K 2067/046 (2013.01); B29K 2995/004 (2013.01); B29K 2995/0056 (2013.01); B29K 2995/0077 (2013.01); B29K 2995/0088 (2013.01); B29K 2995/0097 (2013.01); B29L 2031/7534 (2013.01);
Abstract
Methods of fabricating a polymer scaffold with increased radial strength including steps of elongation or strain of a biaxially oriented tube and annealing or thermal processing of the strained tube at a constant strain are disclosed. The steps of elongation and thermal processing increase axial direction chain orientation and lamellar crystal growth, increase radial strength, and decrease the thickness of the tube. The method allows fabrication of a scaffold with thinner struts which provide sufficient radial strength.