Differentially expanded vascular graft

Details Differentially expanded vascular graft Differentially expanded vascular graft

2004-12-31

2010-12-28

Willse, David H. (Department: 3738)

Prosthesis (i.e., artificial body members), parts thereof, or ai

Arterial prosthesis

Having pores

Reexamination Certificate

active

07857843

ABSTRACT:
A differentially expanded vascular graft for implantation within a body includes a PTFE tube formed of a homogeneous material. The PTFE tube has a longitudinal first portion which has been longitudinally expanded, and a longitudinal second portion which has been longitudinally expanded. The first and second portions have respective microstructures which are different from one another. A method and apparatus for making the differentially expanded vascular graft of the present invention facilitates the formation of the various expanded portions of the PTFE tube.

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