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Systems and methods for electrode contact assessment

  • US 8,162,935 B2
  • Filed: 10/27/2006
  • Issued: 04/24/2012
  • Est. Priority Date: 10/27/2005
  • Status: Expired due to Fees
First Claim
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1. An electrode contact sensing system that provides information indicative of contact between an electrode and tissue, the system comprisingan electrode housed within a distal portion of a catheter shaft having a wall;

  • at least one substantially arcuate electromechanical sensor inside the wall of the catheter shaft and operatively associated with the electrode, the electromechanical sensor adapted to generate an electrical signal in response to a mechanical load on said sensor resulting from contact between said electrode and the tissue, a longitudinal axis of the electromechanical sensor extending substantially parallel to a central axis of the catheter shaft; and

    an output device electrically connected to said at least one sensor, the output device being adapted to receive the electrical signal and to present to a user of the system an indicator of contact between the electrode and the tissue.

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