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Ablation electrodes with capacitive sensors for resolving magnitude and direction of forces imparted to a distal portion of a cardiac catheter

  • US 20110022045A1
  • Filed: 09/29/2010
  • Published: 01/27/2011
  • Est. Priority Date: 12/29/2006
  • Status: Abandoned Application
First Claim
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1. A system for estimating magnitude and direction of a force applied to an object, the system comprising:

  • a sensor including;

    a housing adapted for assembly to the object,at least three capacitive sensing components retained by the housing and each including;

    a first electrode plate,a second electrode plate arranged parallel to and spaced from the first electrode plate to form a capacitor,wherein the housing retains the first and second electrode plates such that the first electrode plate is movable relative to the second electrode plate in response to a force placed upon the housing in establishing a variable gap therebetween;

    an energy source electrically connected to the sensing components; and

    a detector electrically connected to the sensing component;

    wherein the energy source delivers energy to the sensing components and the detector receives an output signal affected by the sensing components, the output signal varying as a function of a size of the gap associated with each of the sensing components such that the output signal is indicative of a magnitude and direction of a force placed upon the housing.

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