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Fixation device for coronary venous lead

  • US 7,477,946 B2
  • Filed: 04/26/2005
  • Issued: 01/13/2009
  • Est. Priority Date: 04/26/2005
  • Status: Expired due to Fees
First Claim
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1. A cardiac lead system adapted for anchoring in a vessel, the system comprising:

  • a lead body including at least one electrode and having a proximal end and a distal end, the lead body defining at least one lead lumen extending between the proximal and distal ends and a plurality of stops located on an outer surface of the lead body; and

    an expandable fixation mechanism having an expanded position adapted to engage an inner surface of the vessel and including a structure slidable over an outer surface of the lead body between the plurality of stops, such that the lead body is adapted to move longitudinally relative to the fixation mechanism when the fixation mechanism is in the expanded position; and

    wherein the plurality of stops are adapted to contact the structure to resist the longitudinal movement of the lead body relative to the fixation mechanism when the fixation mechanism is in the expanded position.

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