Strain gauge plethysmograph

Details Strain gauge plethysmograph Strain gauge plethysmograph

1979-02-09

1981-03-31

Howell, Kyle L.

Surgery

Truss

Pad

128721, 128687, 128774, A61B 502

Patent

active

042587204

ABSTRACT:
A strain gauge plethysmograph is provided comprising an elastic tubular member (2) filled with a non-mercury electrically conductive gallium-indium alloy which is fluid at room temperature. The tubular member (2) is attached to an inelastic strap member (1) at spaced points (5,6). The length of the strap (1) between the points of attachment (5,6) is limited to approximately 120% of the nominal length of the tubular member (2) for restricting stretching of the tubular member (2).

REFERENCES:
patent: 2518906 (1950-08-01), Kocmich
patent: 3097639 (1963-07-01), Streimer
patent: 3268845 (1966-08-01), Whitmore
patent: 3290521 (1966-12-01), Coleman et al.
patent: 3332280 (1967-07-01), Fish et al.
patent: 3520294 (1970-07-01), Fuzzell et al.
Hokanson, D. E. et al., IEEE Trans. on Bio-Med. Engng., BME-22, No. 1, Jan. 1975, pp. 25-29.
Youdin, M. et al., Annals of Bio.-Med. Engng., vol. 4, No. 3, Sep. (1976), pp. 220-231.

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