Thermal detachment system for implantable devices
First Claim
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1. An implant delivery system comprising:
- a. a delivery pusher;
b. an implant connected to said delivery pusher;
c. a tether connecting said implant to said delivery pusher;
d. a heater;
e. wherein said tether is in a pre-tensioned state such that said implant device is released from said delivery pusher less than 1 second after activation of said heater.
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Abstract
The present invention provides for implant device delivery apparatuses and related methods of use. The delivery systems of the present invention incorporate a stretch resistant tube that advantageously makes the implant device, such as an embolic coil, stretch resistant while a delivery system is being used to position the implant device at a desired target site.
140 Citations
34 Claims
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1. An implant delivery system comprising:
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a. a delivery pusher;
b. an implant connected to said delivery pusher;
c. a tether connecting said implant to said delivery pusher;
d. a heater;
e. wherein said tether is in a pre-tensioned state such that said implant device is released from said delivery pusher less than 1 second after activation of said heater. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of releasing an implant from a delivery device comprising:
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a. providing a delivery device having an implant connected to said delivery device with a tether;
b. positioning said implant at a target location within a lumen of a patient;
c. activating a heater of said delivery device such that said implant is released from said delivery device in less than about 1 second after activation of said heater. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An implant delivery system comprising:
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a. a delivery pusher having an outer surface;
b. an implant connected to said delivery pusher;
c. a tether connecting said implant to said delivery pusher;
d. a heater;
wherein said tether is in a pre-tensioned state such that said implant device is released from said delivery pusher after activation of said heater and prior to a temperature of said outer surface of said delivery pusher exceeding about 50°
C. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An implant delivery system comprising:
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a. a delivery pusher;
b. an implant connected to said delivery pusher;
c. a tether connecting said implant to said delivery pusher;
d. a heater;
wherein said tether is pre-tensioned so that release of said implant from said delivery pusher occurs by releasing potential energy thereby applying a force on said implant. - View Dependent Claims (31, 32, 33)
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34-98. -98. (canceled)
Specification