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Doppler transceiver and probe for use in minimally invasive procedures

  • US 8,206,304 B1
  • Filed: 12/16/2004
  • Issued: 06/26/2012
  • Est. Priority Date: 12/16/2003
  • Status: Active Grant
First Claim
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1. A system for the detection of blood flow, the system comprising:

  • a non-imaging Doppler transceiver unit comprising a signal generator having a plurality of factory defined preset signal sensitivity depth selectors, said preset signal sensitivity depth selectors being configured to allow a user to transition between standard signal depths during a procedure;

    a Doppler probe for insertion in to a body cavity, said cavity being external to a target blood vessel during minimally invasive surgical procedures coupled to said transceiver;

    said Doppler probe comprising;

    a piezoelectric crystal disposed at a first end of said Doppler probe;

    at least one wire transmitting signals between said transceiver unit to said piezoelectric crystal and a transceiver unit coupler disposed at a second end of said Doppler probe.

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