Method of and means for implanting a pressure and force sensing

Details Method of and means for implanting a pressure and force sensing Method of and means for implanting a pressure and force sensing

1991-02-14

1992-01-28

Howell, Kyle L.

Surgery

Truss

Pad

A61B 5103

Patent

active

050835734

ABSTRACT:
This apparatus is adapted for replaceable implantation in soft body tissues for the measurement of the mechanical behavior of the soft tissues of the body. The apparatus consists of a thin walled tube containing a longitudinal slot down one side with at least one piezo-resistive strain gauge element bonded to its inner or outer walls. Tension in tissue fiber bundles results in a squeezing pressure against the sides of the tube, which produces a change in the shape of the tube and thus a change in the resistance of the strain gauge element. This resistance change is then measured and displayed. A method of inserting and removing the apparatus is also described, as are several techniques for calibration.

REFERENCES:
patent: 3905356 (1975-09-01), Fletcher et al.
patent: 4204544 (1980-05-01), Feldstein et al.
patent: 4294015 (1981-10-01), Drouin et al.
patent: 4813435 (1989-03-01), Arms
patent: 4993428 (1991-02-01), Arms

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