Cordis Corporation

Ivan A Toyos

Kenneth S Solovay

Robert P Letendre

Joaquin Villalobos

A delivery apparatus for a self-expanding stent allows for ease of repositioning. The apparatus includes an outer sheath made from an elongated tubular member having distal and proximal ends, and an inner shaft located coaxially within the outer sheath. The shaft has a distal end and a proximal end. The shaft includes a removable member on an exterior surface thereof adjacent to its proximal end. The removable member being sized such that it prevents the sheath from sliding along the shaft proximal to the member until it is removed therefrom. Preferably, the distal end of the shaft further including at least two grooves disposed thereon. Preferably the apparatus includes a substantially cylindrical self-expanding stent located within the sheath. The self-expanding member having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior. The self-expanding stent further including at least two spaced apart longitudinal legs having distal and proximal ends, the distal ends of the legs attached to the proximal end of the member. The legs extending proximally away from the member and each the leg including a flange adjacent its proximal end, wherein the flanges are set within the grooves of the inner shaft so as to releasably attach the stent to the inner shaft.

Delivery apparatus for a self expanding retractable stent

A precursor stent for implantation within the body of a patient is utilized in combination with an aortic graft for repairing an abdominal aortic aneurysm. The stent is designed to receive a pair of grafts placed side by side within the interior of the stent. The stent includes a substantially cylindrical and expandable member having a proximal end, a distal end, a longitudinal axis extending therebetween and an interior. The stent further includes an occlusive member attached to the expandable member. The occlusive member at least partially occludes a passageway or stent lumen which extends through the interior of the expandable member extending between its distal end and proximal end. The occlusive member has an opening extending therethrough designed to receive a guidewire for one of the grafts. Therefore, when the guidewire for the other graft is introduced, after deployment of the stent within a body, it will go through the portion of the interior not covered by the occlusive member. This helps to ensure proper side by side placement of the two grafts.

Growing community of inventors

Hialeah, FL, United States of America

Ivan A Toyos