×

Ultrasonic densitometer device and method

  • US 5,042,489 A
  • Filed: 10/10/1990
  • Issued: 08/27/1991
  • Est. Priority Date: 05/11/1988
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for measuring the physical properties and integrity of a member in vivo comprising the steps of:

  • (a) providing a pair of spaced ultrasonic transducers;

    (b) launching at least two acoustic signals between the transducers, one of the signals being through at least the member and the other of the signals being through a standard inanimate homogeneous material of known acoustic properties, the distance between the two transducers remaining fixed for the two signal launches;

    (c) determining the transit time for each of the two acoustic signals between the two transducers;

    (d) making a mathematical time comparison between the transit time of the signal through the member with the transit time of the signal through the standard material; and

    (e) relating the mathematical time comparison to the physical properties of the member.

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