Implant Retention, Detachment, And Delivery System
First Claim
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1. A delivery system for an implant, comprising:
- an elongated pusher having a distal pusher end and a proximal pusher end;
a retention structure having a proximal structure end fixed to said pusher near said distal pusher end, and a distal structural end extending distally away from said distal pusher end;
said retention structure having a radially compressed configuration and a radially expanded configuration; and
,and implant located near said distal pusher end and in contact with said retention structure;
wherein said retention structure engages said implant in said radially compressed configuration and releases said implant in said radially expanded configuration.
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Abstract
A medical implant delivery system is described. The system can be used to deliver a variety of implants including stents and/or stent grafts. The delivery system retains the implant during delivery and detaches the implant at a target location.
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Citations
19 Claims
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1. A delivery system for an implant, comprising:
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an elongated pusher having a distal pusher end and a proximal pusher end; a retention structure having a proximal structure end fixed to said pusher near said distal pusher end, and a distal structural end extending distally away from said distal pusher end;
said retention structure having a radially compressed configuration and a radially expanded configuration; and
,and implant located near said distal pusher end and in contact with said retention structure;
wherein said retention structure engages said implant in said radially compressed configuration and releases said implant in said radially expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A delivery system for an implant, comprising:
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a catheter having a passage therethrough between a distal catheter end and a proximal catheter end; an elongated pusher having a distal pusher end and a proximal pusher end;
said elongated pusher being disposed in said passage of said catheter so as to move longitudinally relative to said catheter;a retention structure having a proximal structure end fixed to said pusher near said distal pusher end, and a distal structural end extending distally away from said distal pusher end;
said retention structure having a radially compressed configuration and a radially expanded configuration; and
,and implant located near said distal pusher end and in contact with said retention structure;
wherein said retention structure engages said implant in said radially compressed configuration within said passage of said catheter and releases said implant in said radially expanded configuration when advanced distally outside of said distal catheter end. - View Dependent Claims (13, 14, 15)
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16. A method of delivering a stent, comprising:
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distally advancing an elongated pusher within a passage of a catheter;
said elongated pusher having an implant retention structure on its distal end that is engaged with and disposed over a stent; and
,distally advancing said stent completely out of said catheter while maintaining engagement of said implant retention structure with said stent. - View Dependent Claims (17, 18, 19)
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Specification