Method and apparatus for measurement of acoustic impedance trans

Details Method and apparatus for measurement of acoustic impedance trans Method and apparatus for measurement of acoustic impedance trans

1974-08-05

1978-06-13

Howell, Kyle L.

Surgery

Truss

Perineal

73574, 128 205Z, A61B 1000

Patent

active

040943046

ABSTRACT:
Acoustic impedance transitions in human or animal bodies or other media are measured for identification and diagnostic purposes by exposing the body to acoustic energy pulses to produce echo pulses which are detected. The echo pulses are processed to indicate the relative specific acoustic impedance of the exposed body as a function of the time/distance relationship of the echo pulses relative to the medium, thereby to enable the determination of the relative extent and position of irregularities in the body, for example.

REFERENCES:
patent: 3088541 (1963-05-01), Alexander et al.
patent: 3156110 (1964-11-01), Clynes
patent: 3640271 (1972-02-01), Horton
patent: 3690158 (1972-09-01), Lichtenstein
patent: 3695252 (1972-10-01), Gordon
patent: 3830223 (1974-08-01), Beretsky et al.
Kikuchi, Y. et al., Japan Electronic Engnrg, Oct. 1970, pp. 53-60.

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