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:
Aug. 10, 1999
Filed:
Feb. 25, 1997
Alfred A Iversen, Wayzata, MN (US);
PMT Corporaton, Chanhassen, MN (US);
Abstract
A method of manufacturing a laminated item such as a prosthesis or tissue expander having a flexible, expandable membrane surrounding an interior lumen to enhance the strength and performance of the membrane comprises the steps of applying a first layer of a fluid, resilient, stretchable material to a mandrel; allowing the fluid material to drain off the mandrel in a first flow direction; allowing the fluid material to harden to form a resilient, stretchable first layer on the mandrel; applying a second layer of the fluid material on the first layer; changing the orientation of the mandrel to allow the fluid material to drain off the mandrel in a second flow direction, the second flow direction being at an angle to the first flow direction; and allowing the fluid material to harden to form a resilient, stretchable second layer on the first layer.