Ultrasonic diagnosis apparatus for displaying the distribution o

Details Ultrasonic diagnosis apparatus for displaying the distribution o Ultrasonic diagnosis apparatus for displaying the distribution o

1986-02-06

1988-05-10

Jaworski, Francis J.

Surgery

Truss

Pad

7386125, A61B 1000

Patent

active

047428309

ABSTRACT:
An ultrasonic diagnosis apparatus comprises a probe means for transmitting an ultrasonic pulse beam toward an internal moving part of a living body and receiving the reflected wave therefrom, and a plurality of phasing circuits for simultaneously receiving and phasing the received signal in parallel in a plurality of channels. The received signals of plural channels are mixed with a set of complex reference signals having a complex relation therebetween, thereby converting the received signals into complex signals. Autocorrelators delay the complex signals computes the autocorrelation of the complex signals. Speed operators compute the speed of the internal moving part of the basis of the computed autocorrelation. The result of measurement of the distribution of the speed of the internal moving part is displayed on a display unit.

REFERENCES:
patent: 4254662 (1981-03-01), Kuroda et al.
patent: 4573477 (1986-03-01), Namekawa et al.
patent: 4583409 (1986-04-01), Lannuzel et al.
patent: 4583552 (1986-04-01), Iinuma
patent: 4622977 (1986-11-01), Namekawa et al.

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