Prosthesis (i.e. – artificial body members) – parts thereof – or ai – Arterial prosthesis – Stent combined with surgical delivery system
Reexamination Certificate
2005-09-20
2005-09-20
Ho, (Jackie) Tan-Uyen T. (Department: 3731)
Prosthesis (i.e., artificial body members), parts thereof, or ai
Arterial prosthesis
Stent combined with surgical delivery system
Reexamination Certificate
active
06945989
ABSTRACT:
An apparatus for delivering a stent into a blood vessel includes a sheath having a rounded bullet-shaped distal portion including a plurality of flexible leaflets integrally molded thereto. The stent is disposed in its contracted condition within a lumen of the sheath proximate the distal portion. A bumper is slidably disposed within the lumen that includes a helical compression coil, a bumper element attached to the helical coil including a blunt distal edge for abutting the stent, and an extension element extending distally from the bumper element through the stent and between the leaflets to facilitate introducing the apparatus over a guidewire. The sheath is formed by inserting a bullet into a blunt-ended tube, and inserting the tube into a bullet-shaped bore in a heated die until the tube material is softened and deforms into a rounded bullet shape. Slits are then cut into the distal portion to create the leaflets.
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EPO Publication No. EP O 873 733 A1, “Controllable Stent Delivery System”, Oct. 28, 1998.
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PCT Publication No. WO 99/48908, “A Delivery Catheter”, Oct. 7, 1999.
Betelia Rainier
Gillis Edward M
Rourke Jonathan M.
Yang Yi
Endotex Interventional Systems, Inc.
Ho (Jackie ) Tan-Uyen T.
Orrick Herrington & Sutcliffe LLP
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