Acoustic imaging device

Details Acoustic imaging device Acoustic imaging device

1994-04-25

1995-05-23

Jaworski, Francis

Surgery

Truss

Pad

73602, A61B 800, G01N 2900

Patent

active

054172187

ABSTRACT:
This invention provides an acoustic imaging device in which a large number of transducers are spaced less than a half acoustic wavelength apart on a circle surrounding an object to be imaged. A signal generator generates discrete acoustic frequencies in the range of 100 kHz to 1.5 MHz. Multiplexer systems are provided to permit each transducer, one at a time, to broadcast a signal while the broadcast signal is detected by the other transducers. Electronic equipment records the detected signal and from the recorded information phase and amplitude data is calculated with respect to each transducer location. A computer programmed with an algorithm computes images of slices through the object using the phase and amplitude data. We utilize single frequency, steady-state acoustic signals which enables the accurate determination of the phase and amplitude of the acoustic signals at each receiver transducer. Finally, in order to reduce the data acquisition time and reduce motion artifacts, we utilize acoustic signals comprised of a plurality of discrete indentifiable frequencies each frequency providing an image of the medium.

REFERENCES:
patent: 4222274 (1980-09-01), Johnson
patent: 4562540 (1985-12-01), Devaney
patent: 4594662 (1986-06-01), Devaney
patent: 4598366 (1986-07-01), Devaney
patent: 4662222 (1987-05-01), Johnson

Affiliated with

Also associated with

Rating

Acoustic imaging device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic imaging device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic imaging device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2134522