Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent in combination with graft
Reexamination Certificate
2007-09-25
2007-09-25
Gherbi, Suzette (Department: 3738)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent in combination with graft
C623S901000
Reexamination Certificate
active
11431150
ABSTRACT:
The present invention provides for reinforced and drug eluting stent-grafts and related methods of implanting and manufacturing the stent-grafts. A stent-graft of the present invention may include a tubular stent, a biocompatible covering surrounding the stent, and a supporting collar coupled to the proximal end of the stent-graft. A drug agent may be applied to a textured external surface layer of the biocompatible covering, or alternatively to a space between the textured external surface layer and a smooth luminal surface layer of the biocompatible covering, and allowed to elute over time into a wall of a body lumen after the stent-graft is deployed. The collar of the stent-graft absorbs pressure exerted on the stent-graft by fluid flow within the body lumen in order to minimize potential damage to the stent-graft, and may also include barbs to further secure the stent-graft to the body lumen.
REFERENCES:
patent: 6663667 (2003-12-01), Dehdashtian et al.
Gherbi Suzette
O'Melveny & Myers LLP
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