Self-expanding stent delivery system
First Claim
Patent Images
1. A catheter assembly, comprising:
- an elongated catheter having a proximal end and a distal end;
the catheter having an inner member and an outer member extending along a longitudinal axis, the inner member and the outer member having a coaxial configuration and dimensioned for relative axial movement;
a control handle positioned at the catheter proximal end for providing relative axial movement between the inner member and the outer member;
a self-expanding stent having an open, flexible structural member configured to be biased from a delivery configuration having a reduced cross-section and a predetermined length to an open configuration with an enlarged cross-section and being positioned within a distal end of the outer member in the delivery configuration; and
an elastomeric sleeve attached to the distal end of the inner member wherein the inner member distal end and the sleeve are positioned within the stent, and wherein the elastomeric sleeve is formed of a polymeric material having attachment projections extending therefrom to fill the stent structural member to facilitate the removable attachment of the stent about said inner member.
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Abstract
A stent-delivery catheter system delivers and implants a self-expanding stent intraluminally into a human patient'"'"'s body lumen. A self-expanding stent is removabaly attached to the distal end of an inner member so that attachment projections prevent axial movement of the stent on the inner member while the stent is being delivered and implanted in a patient'"'"'s body lumen.
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Citations
6 Claims
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1. A catheter assembly, comprising:
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an elongated catheter having a proximal end and a distal end;
the catheter having an inner member and an outer member extending along a longitudinal axis, the inner member and the outer member having a coaxial configuration and dimensioned for relative axial movement;
a control handle positioned at the catheter proximal end for providing relative axial movement between the inner member and the outer member;
a self-expanding stent having an open, flexible structural member configured to be biased from a delivery configuration having a reduced cross-section and a predetermined length to an open configuration with an enlarged cross-section and being positioned within a distal end of the outer member in the delivery configuration; and
an elastomeric sleeve attached to the distal end of the inner member wherein the inner member distal end and the sleeve are positioned within the stent, and wherein the elastomeric sleeve is formed of a polymeric material having attachment projections extending therefrom to fill the stent structural member to facilitate the removable attachment of the stent about said inner member. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification