IMPLANT AND DELIVERY SYSTEM WITH MULTIPLE MARKER INTERLOCKS
First Claim
Patent Images
1. A medical device comprising:
- an implant having a proximal and distal end and a self-expanding portion with a constrained diameter d and constrained length l; and
an implant delivery system comprising a tubular catheter having outer shaft sheath slidably disposed about an inner member;
a mechanism for enabling increases in the constrained length l of the implant disposed intermediate the inner member and outer sheath when the outer sheath moves relative to the inner member.
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Abstract
An implant delivery system has one or more interlock assemblies which connect the implant delivery catheter to the implant, an improved inner tubular member and an outer tubular member. The interlock assemblies, improved inner tubular member and outer tubular member cooperate to place the implant in tension during deployment, thereby reducing implant deployment force.
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Citations
25 Claims
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1. A medical device comprising:
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an implant having a proximal and distal end and a self-expanding portion with a constrained diameter d and constrained length l; and
an implant delivery system comprising a tubular catheter having outer shaft sheath slidably disposed about an inner member;
a mechanism for enabling increases in the constrained length l of the implant disposed intermediate the inner member and outer sheath when the outer sheath moves relative to the inner member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device comprising:
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an implant having a proximal and a distal end and a self-expanding portion with a constrained diameter d and constrained length l; and
an implant delivery system comprising a tubular catheter having outer shaft sheath slidably disposed about an inner member, a mechanism for decreasing the constrained diameter d of the implant disposed intermediate the inner member when the outer sheath moves relative to the inner member. - View Dependent Claims (11, 12, 13)
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14. A system for delivering a medical device within a body lumen comprising:
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a tubular catheter having proximal and distal ends and comprising an outer shaft member slidably disposed about an inner shaft member;
a medical device comprising a tubular, self-expanding section carried by the inner shaft member and disposed intermediate the inner shaft member and the outer shaft member, the implant having a length l and a constrained diameter d which frictionally engages an inner surface of the outer shaft member; and
a tensioning mechanism for causing tensioning of the medical device when the outer shaft member moves relative to the inner shaft member. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A method for deploying an implant comprising:
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a) providing an implant delivery system comprising an at least partially self expanding implant carried by an inner member and outer sheath slidably mounted over the inner member, the implant having a constrained length l and a constrained diameter d when disposed intermediate the inner member and the outer sheath; and
b) placing the implant in tension while enabling axial movement of the outer sheath relative to the implant. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification