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Method and apparatus for fixating an implantable medical device

  • US 8,052,711 B2
  • Filed: 03/03/2004
  • Issued: 11/08/2011
  • Est. Priority Date: 04/03/2002
  • Status: Active Grant
First Claim
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1. An implantable device, comprising:

  • an elongate body including a proximal portion and a distal portion;

    a fixation mechanism formed about the body, extending from the proximal portion to the distal portion and comprising;

    a fixation segment positioned in proximity to a distal end of the fixation mechanism and including a deployable lobe,a push tube segment extending from the fixation segment proximally to a proximal end of the fixation mechanism, andan anchor fixedly coupling the fixation mechanism distal end to the body at a location spaced from a distal end of the body such that a portion of the distal portion of the body is located between the fixation mechanism distal end and the distal end of the body;

    a lubricious interface between the body and a portion of the push tube;

    wherein the distal portion of the body comprises a bend formed therein, wherein the bend is located between the fixation mechanism distal end and a distal end of the body, and wherein, when the portion of the body about which the fixation mechanism is formed is straight and a longitudinal axis is drawn through the center of that portion, the bend is such that a distal end of the body is deflected by a distance from the longitudinal axis that is greater than a height of the deployed lobe as measured from the longitudinal axis; and

    wherein the deployable lobe is deployed when the push tube segment is pushed distally.

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