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Miniature ultrasonic transducer with focusing lens for intracardiac and intracavity applications

  • US 20050251127A1
  • Filed: 04/12/2005
  • Published: 11/10/2005
  • Est. Priority Date: 10/15/2003
  • Status: Abandoned Application
First Claim
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1. A method, comprising:

  • advancing a device through a passageway inside a patient'"'"'s body toward a target location, the device including a piezoelectric element and an ultrasonic lens, the ultrasonic lens including an inner surface defining a passage, the piezoelectric element being received in the passage and being acoustically coupled to the inner surface, the ultrasonic lens including an outer surface opposite the inner surface, the outer surface defining a shape with a concave profile;

    after the advancing, maintaining the device in a selected position in the passageway to orient the concave profile relative to the target location;

    while the concave profile is oriented relative to the target location, generating ultrasonic energy with the piezoelectric element of the device; and

    ablating tissue at the target location by focusing the ultrasonic energy with the concave profile of the lens.

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