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Systems and methods for tissue mapping and ablation

  • US 5,916,213 A
  • Filed: 02/04/1997
  • Issued: 06/29/1999
  • Est. Priority Date: 02/04/1997
  • Status: Expired due to Term
First Claim
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1. An apparatus for recording electrical signals and/or for applying energy to a target site within a patient comprising:

  • a shaft having distal and proximal end portions and a longitudinal axis therebetween;

    an ablation segment comprising first and second arms pivotally mounted to the distal end portion of the shaft by a hinge for movement between generally parallel and spaced-apart positions, the arms each having a distal end spaced-apart from the hinge, each arm having a plurality of ablation electrodes;

    a connector extending through the shaft for electrically coupling the electrodes to a source of electrical energy; and

    a force element coupled to the shaft and disposed to apply an axially directed force to the arms between the distal ends of the arms.

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