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Apparatus and methods for stimulating revascularization and/or tissue growth

  • US 6,120,520 A
  • Filed: 03/17/1999
  • Issued: 09/19/2000
  • Est. Priority Date: 05/27/1997
  • Status: Expired
First Claim
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1. Apparatus for treating an interior region of a cardiac chamber, the apparatus comprising:

  • a catheter configured for insertion into a cardiac chamber, the catheter having a deflectable end region;

    an end effector disposed within the deflectable end region, the end effector adapted to form a needle track at a treatment site in an interior region of the cardiac chamber, the end effector movable between a first position, wherein the end effector is retracted within the end region, and a second position, wherein the end effector is extended beyond a distal endface of the catheter; and

    means for moving the end region between the first and second positions,wherein the end effector further comprises means for depositing a controlled amount of a bioactive agent at the treatment site.

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