Expandable microporous prosthesis
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 17, 1998
Grant Date -
N/A
app pub date -
Nov 21, 1996
filing date -
Jul 29, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a tubular prosthesis formed by rolling a perforated sheet around a longitudinal axis. Preferably, the prosthesis is self expandable under the radially outwardly directed spring bias of the rolled sheet. The perforations in the sheet are configured to provide throughholes in the wall of the multilayer prosthesis, when the prosthesis is in the implanted diameter within a vessel. The throughholes are configured to facilitate neointimal cell growth, and in a preferred embodiment, to minimize roll bias in the prosthesis as it is expanded from its reduced, insertion diameter to its expanded, implanted diameter. The prosthesis may be used as a graft or a stent.
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