Instrument for viscoelastic measurement
AssigneeYeda Research and Development Co. Ltd.
InventorsEphraim H. Frei, Bruce D. Sollish, Shmuel Yerushalmi, Sidney B. Lang, Mordechai Moshitzky
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Abstract
An instrument for viscoelastic measurement, particularly for breast palpation, uses a plurality of spaced elongated electret strips which are pressed into the body being examined by a pressure member which applies a given periodic or steady stress to the tissue beneath the electret strips. Electronic measuring means then interrogates the output voltage of each of the strips in turn and the output of each strip is displayed to produce a display characteristic which will show the presence of an inclusion in the breast tissue being examined.
Claims8
An instrument for viscoelastic measurement of human tissue comprising a thin, flat, flexible support sheet;
- a plurality of spaced transducer elements supported on said support sheet, a planar pressure applying member in surface-to-surface contact with one surface of said support sheet for pressing said spaced transducer elements into a body being examined, means for applying a varying force to said pressure applying member at a given frequency, and circuit means connected to each of said transducer elements for determining a difference in the output of adjacent elements which is indicative of an inclusion in said tissue.
Dependencies are inferred from the claim text.