Composite structures and methods for ablating tissue to form complex lesion patterns in the treatment of cardiac conditions and the like

  • US 6,241,754 B1
  • Filed: 11/18/1996
  • Issued: 06/05/2001
  • Est. Priority Date: 10/15/1993
  • Status: Expired due to Term
First Claim
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1. A method of creating a lesion pattern in heart tissue, comprising the steps of:

  • introducing an elongate element, having an energy emitting portion that can be flexed along its length from a generally straight shape into a curvilinear shape, into the heart;

    positioning the element in a first position adjacent to a first surface within the heart while maintaining the energy emitting portion in a desired shape;

    applying ablating energy to the energy emitting portion while maintaining the element in the first position to form an elongate lesion having a shape corresponding to the shape of the element;

    changing at least one of the shape of the element and the position of the element within heart; and

    forming a convoluted lesion pattern by repeating the positioning, applying and changing steps.

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