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Ablation device with jaws

  • US 7,875,028 B2
  • Filed: 07/08/2009
  • Issued: 01/25/2011
  • Est. Priority Date: 06/02/2004
  • Status: Active Grant
First Claim
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1. An ablation device for ablating target tissue adjacent pulmonary veins of a patient, the ablation device comprising:

  • a hinge including a cam assembly, the cam assembly including at least one rider and at least one finger;

    a moving arm coupled to the hinge, the moving arm including a cam surface that engages the at least one rider;

    a floating jaw coupled to the moving arm, the at least one finger engaging the floating jaw to hold the floating jaw in a first position with respect to the moving arm as the floating jaw is moved from an open position partially toward a closed position, the floating jaw including a first electrode that receives ablation energy; and

    a lower jaw coupled to the hinge, the lower jaw including a channel that receives the at least one finger, the channel allowing the floating jaw to move to a second position that is reoriented with respect to the moving arm after partial closing of the floating jaw from an open position toward a closed position, the lower jaw including a second electrode that receives ablation energy.

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