Thermal detachment system for implantable devices

  • US 8,182,506 B2
  • Filed: 08/25/2005
  • Issued: 05/22/2012
  • Est. Priority Date: 08/25/2004
  • Status: Active Grant
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, said tether having a distal end connected to said implant;

    d. an electrical heating element associated with said tether;

    wherein when activated, said heater causes said tether to break at a point proximal of said distal end such that a distal portion of said tether remains with said implant; and

    wherein said tether is in a pre-tensioned state below the elastic limit of the tether material and wherein said implant device is released from said delivery pusher less than 1 second after activation of said electrical heating element, substantially due to said pre-tensioned state.

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