×

System and method for determining the proximity between a medical probe and a tissue surface

  • US 7,517,315 B2
  • Filed: 08/26/2005
  • Issued: 04/14/2009
  • Est. Priority Date: 08/26/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method of determining a proximity between a medical probe having an ultrasound transducer and a tissue surface, comprising:

  • operating the ultrasound transducer in a first resonant mode to transmit a first ultrasound signal that intersects the tissue surface to create a first reflected ultrasound signal;

    operating the ultrasound transducer in a second different resonant mode to transmit a second ultrasound signal that intersects the tissue surface to create a second reflected ultrasound signal;

    receiving the first and second reflected ultrasound signals; and

    determining a proximity between a portion of the medical probe and the tissue surface based on the received first and second reflected ultrasound signals.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×