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Instrument for viscoelastic measurement

  • US 4,144,877 A
  • Filed: 08/12/1976
  • Issued: 03/20/1979
  • Est. Priority Date: 08/12/1976
  • Status: Expired due to Term
First Claim
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1. A transducer head for palpation of living breast tissue comprising, in combination:

  • at least first and second pressure transducer means spaced from one another and mounted on a common base having a independently for engaging a plurality of fingers;

    said transducer means having sufficient sensitivity to detect viscoelastic changes in breast tissue;

    said first and second transducer means being generally flat and thin, and being normally disposed in a generally common plane;

    each of said transducer means having electrical output leads insulated from one another; and

    circuit means including differential output measuring means connected to each of said transducer means for determining a difference in output between said first and second transducer means when said first and second transducer means are pressed against spaced areas of living breast tissue, thereby to determine local thickened regions in said living breast tissue.

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