Expandable microporous prosthesis

Details Expandable microporous prosthesis Expandable microporous prosthesis

1996-11-21

1998-03-17

Milano, Michael J.

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

Arterial prosthesis

Stent structure

623 12, A61F 206

Patent

active

057281505

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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