1981-08-31
1982-12-21
Frinks, Ronald L.
3 21, 3 32, 3 33, A61F 108
Patent
active
043641288
ABSTRACT:
An artificial foot for attachment to a prosthetic device securable to a leg stump. The artificial foot is adjustable in length and in height of the instep so as to permit the foot to be snugly inserted in a conventional shoe. The artificial foot includes a simulated toe portion which is horizontally pivotally connected to a sole plate. A spring-pressed linkage normally maintains the simulated toe portion in an aligned position with the sole plate, but permits upward pivotal movement of the toe portion in response to the forces encountered in taking a step. A latching lever frictionally engages the spring-pressed linkage to latch the pivoted toe portion in its upward position during that portion of the step wherein the weight is carried by the other foot. The artificial foot is connected to the bottom plate of a prosthetic device by a plurality of cushion plugs. The rearmost one of the cushion plugs mounts a depending plunger which is operatively connected with the latching lever to release same when the heel portion of the artificial foot first engages the ground at the end of a step, thereby permitting the simulated toe portion to resume its aligned position.
REFERENCES:
patent: 1289580 (1918-12-01), Vincenti
patent: 2036830 (1936-04-01), Rowley
patent: 2470480 (1949-05-01), Fogg
patent: 2475372 (1949-07-01), Catranis
patent: 2687533 (1954-08-01), McCormick
patent: 2731645 (1956-01-01), Woodall
patent: 3551914 (1971-01-01), Woodall
patent: 3800334 (1974-04-01), Friberg
Frinks Ronald L.
Jobst Institute Inc.
LandOfFree
Artificial foot does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Artificial foot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Artificial foot will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-400368