Rapid exchange stent delivery system and associated components
AssigneeSciMed Life Systems, Inc.
InventorsMichael Gerdts, Mary Bronson, August Powell
Life of this patent
Estimating the term…
Abstract
A rapid exchange stent delivery catheter which includes an inner tubular member and an outer tubular member slidably disposed thereon. The inner tubular member and the outer tubular member have rapid exchange type guide wire openings. The guide wire opening of the outer tubular member is preferably shorter in length than the guide wire opening of the inner tubular member to protect the inner workings of the catheter. The outer tubular member may include a guide wire access sleeve having a guide wire ramp extending into the guide wire lumen of the inner tubular member. The guide wire sleeve may be a separate component from the remainder of the outer tubular member to facilitate efficient manufacture.
Claims18
A rapid-exchange stent delivery catheter, comprising:
- an inner tubular member, having a proximal end, a distal end, and a guide wire lumen extending from a proximal guide wire opening disposed distal of the proximal end of the inner tubular member to a distal guide wire opening disposed at the distal end of the inner tubular member;
- an outer tubular member disposed about at least a portion of the inner tubular member, having a proximal end, a distal end, and a guide wire opening disposed within the outer tubular member distal of the proximal end of the outer tubular member;
- the guide wire opening of the outer tubular member further comprising a guide wire ramp extending into the proximal guide wire opening of the inner tubular member;
- and
- a distal head disposed near the distal end of the inner tubular member, the distal head restricting longitudinal movement of the outer tubular member relative to the inner tubular member.
A rapid-exchange stent delivery catheter, comprising:
- a catheter shaft including an inner tubular member and an outer tubular member,
- the inner tubular member, having a proximal end, a distal end, and a guide wire lumen extending from a proximal guide wire opening disposed distal of the proximal end of the inner tubular member to a distal guide wire opening disposed at the distal end of the inner tubular member, the inner tubular member extending substantially the length of the catheter shaft,
- the outer tubular member, having a proximal end, a distal end, and a guide wire opening disposed within the outer tubular member distal of the proximal end of the outer tubular member, the outer tubular member extending substantially the length of the catheter shaft;
- and
- the guide wire opening of the outer tubular member having a guide wire ramp extending into the proximal guide wire opening of the inner tubular member.
A rapid-exchange stent delivery catheter, comprising:
- an inner tubular member, having a proximal end, a distal end, and a guide wire lumen extending from a proximal guide wire opening disposed distal of the proximal end of the inner tubular member to a distal guide wire opening disposed at the distal end of the inner tubular member,
- an outer tubular member slidably disposed about the inner tubular member allowing longitudinal motion, having a proximal portion, a distal portion, and a guide wire sleeve disposed intermediate the proximal and distal portions,
- the guide wire sleeve having a proximal portion, a distal portion, a lumen therethrough, and a guide wire opening having a ramp extending into the lumen of the guide wire sleeve;
- and
- a stent disposed about the inner tubular member proximate the distal end of the inner tubular member.
Dependencies are inferred from the claim text.