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Devices and methods for transluminal or transthoracic interstitial electrode placement

  • US 20040015193A1
  • Filed: 04/11/2003
  • Published: 01/22/2004
  • Est. Priority Date: 04/11/2002
  • Status: Active Grant
First Claim
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1. A method for implantation of an electrode at an intended location outside of the lumen of a blood vessel or other anatomical conduit within the a human or veterinary patient, the method comprising the steps of:

  • a) providing a tissue penetrating catheter that comprises i) an elongate catheter body, ii) a hollow tissue penetrator advanceable from the catheter body and iii) an orientation element useable to pre-determine the specific trajectory or direction in which the penetration will advance from the catheter body;

    b) positioning the catheter body in the blood vessel or other anatomical conduit;

    c) using the orientation element to position and rotationally orient the catheter body such that when the penetration is subsequently advanced the penetration will substantially enter the intended location where the electrode is to be implanted; and

    , thereafter, d) implanting a pacing electrode at the intended location by at least one of the following procedures;

    i) advancing a pacing electrode through the lumen of the penetration and into the intended extravascular location;

    or, ii) advancing a guidewire through the penetration and into the intended extravascular location and, thereafter, advancing the pacing electrode over the guidewire and into the intended implantation location;

    or, iii) advancing a guidewire through the penetration and into the intended extravascular location, advancing a tract enlarging apparatus over the guidewire and using the tract enlarging apparatus to enlarge the tract created by the penetration and/or the guidewire and, thereafter, advancing the pacing electrode over the guidewire and through the enlarged penetration tract to the intended implantation location.

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