Mark Tensley Mathis

US Patent:

6743219, Jun 1, 2004

Filed:

Aug 2, 2000

Appl. No.:

09/631002

Inventors:

Clifford J. Dwyer - Weston FL
Luis A. Davila - Pleasanton CA
Frederick Feller, III - Margate FL
Mark L. Mathis - Fremont CA
David J. Wilson - Ft. Lauderdale FL

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61M 2500

US Classification:

604525, 623 111, 606108

Abstract:

A delivery apparatus for self-expanding stents may be utilized to safely deliver stents to a target site. The apparatus has an outer sheath forming an elongated tubular member having distal and proximal ends and an inside and outside diameter. The apparatus also includes an inner shaft located coaxially within the outer sheath. The inner shaft has a distal end, a proximal end and a longitudinal axis extending therebetween. At least a portion of the inner shaft is made from a flexible coiled member. The shaft preferably includes a stop attached thereto, the stop being proximal to the distal end of the sheath. Lastly, the apparatus includes a self-expanding stent located within the outer sheath, wherein the stent makes frictional contact with the outer sheath and the shaft is disposed coaxially within a lumen of the stent. During deployment of the stent, the stent makes contact with the stop.

US Patent:

6773446, Aug 10, 2004

Filed:

Aug 2, 2000

Appl. No.:

09/631026

Inventors:

Clifford J. Dwyer - Weston FL
Luis A. Davila - Pleasanton CA
Frederick Feller, III - Margate FL
Mark L. Mathis - Fremont CA
David J. Wilson - Ft. Lauderdale FL

Assignee:

Cordis Corporation - Miami Lakes FL

International Classification:

A61M 2900

US Classification:

606191, 606108, 606198, 606128, 606200, 606 41

Abstract:

A delivery apparatus for a self-expanding stent is disclosed. The apparatus has an outer sheath forming an elongated tubular member having distal and proximal ends and an inside and outside diameter. The apparatus also includes an inner shaft located coaxially within the outer sheath. The inner shaft has a distal end, a proximal end and longitudinal axis extending therebetween. At least a portion of the inner shaft is made from a flexible coiled member. The shaft preferably includes a stop attached thereto, the stop being proximal to the distal end of the sheath. Lastly, the apparatus includes a self-expanding stent located within the outer sheath, wherein the stent makes frictional contact with the outer sheath and the shaft is disposed coaxially within a lumen of the stent. During deployment of the stent, the stent makes contact with the stop.