Ambulation assistance device

Details Ambulation assistance device Ambulation assistance device

1975-06-16

1976-10-19

Yasko, John D.

Surgery

Truss

Perineal

3 4, 135 68, 272 703, A61F 504

Patent

active

039865029

ABSTRACT:
A device to assist ambulation. The device includes an arcuate edge whose center of curvature is located substantially at a point of load transfer from the body to the frame of the device. That point moves in the ambulation direction as a consequence of rolling contact of the arcuate edge with the ground. The arc is not necessarily a circular arc. In one embodiment, the load transfer point is at the knee, and the device can increase the stride of a normal leg or can act as a prosthetic substitution for a missing lower part of a leg. In another embodiment, the load transfer point can be at the armpit, and the device becomes a support in the nature of a crutch that renders crippled ambulation surprisingly smooth and stable. In fact, the device is so stable that the user can at least partially be sling-supported by it. In another embodiment, the load transfer point is at the hand, and the device can be used as a cane.

REFERENCES:
patent: 267680 (1882-11-01), Crandall
patent: 1277009 (1918-08-01), Weldon
patent: 1323629 (1919-12-01), Hall
patent: 1905112 (1933-04-01), Lang
patent: 1934346 (1933-11-01), Fisher
patent: 2762367 (1956-09-01), Rubin
patent: 3254659 (1966-06-01), Williams
patent: 3633906 (1972-01-01), Fowler

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