Load signaling device for a patient's foot

Details Load signaling device for a patient's foot Load signaling device for a patient's foot

1974-07-22

1976-08-10

Caldwell, John W.

Communications: electrical

Systems

Call station

340240, 340279, 200 85R, 200 865, 177209, 128 2S, 73172, 33 3A, G01D 2104, A61B 500, G01M 1900

Patent

active

039744914

ABSTRACT:
A device for signaling a patient when a predetermined load is placed on the patient's foot comprises a resilient foot pad having a toe end and a heel end and adapted to substantially cover the inner sole of a shoe. A resilient liquid filled tube is mounted within the pad with the tube extending from adjacent the toe end to adjacent the heel end of the pad. A signaling device is controlled by a pressure responsive means in communication with the liquid in the tube for the actuation of the signaling means at a predetermined pressure of said liquid.

REFERENCES:
patent: 1824663 (1931-09-01), Munbrun
patent: 2558805 (1951-07-01), Yaglou
patent: 2972132 (1961-02-01), Putney
patent: 3305036 (1967-02-01), Walters
patent: 3699398 (1972-10-01), Newmeyer
patent: 3702999 (1972-11-01), Gradisar
patent: 3791375 (1974-02-01), Pfeiffer

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