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Probe penetration detector and method of operation

  • US 6,603,997 B2
  • Filed: 11/02/2001
  • Issued: 08/05/2003
  • Est. Priority Date: 11/02/2001
  • Status: Expired due to Fees
First Claim
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1. A probe penetration detector system for the surgical examination by an operator of respective layers of body tissue and a body cavity of a patient, comprising:

  • an electrically conductive probe adapted for being inserted into the respective layers of body tissue and into the body cavity of the patient, said probe serving as an antenna while proximal of respective layers of body tissue and the body cavity of the patient;

    a transmitter for generation of a plurality of radio frequency signals transmitted to said probe;

    a connector in electrical connection with said transmitter, said connector disposed proximal of said probe for transmission by capacitive coupling of said radio frequency signals to said probe; and

    a detector to monitor a selected feedback parameter for said probe, said detector including circuitry for notification of said selected feedback parameter in to the operator as each respective layer of the body tissue and the body cavity is penetrated by said probe;

    whereby said selected feedback parameter provides the operator with an indicator of penetration of said probe through the respective layers of body tissue and into the body cavity of the patient.

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