Biomechanical ankle

Details Biomechanical ankle Biomechanical ankle

1984-03-12

1991-07-09

Isabella, David J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Leg

Ankle

A61F 266

Patent

active

050302396

ABSTRACT:
An improved biomechanical ankle is provided which imitates the three primary categories of movement in a human foot. Parallel sole and limb supporting plates are held in spaced relationship by an upright post. The limb supporting plate is connected to the post with a ball and socket joint. A helical spring is fixed between the plates to provide resilient support to the anterior portion of the foot in imitation of normal muscular control. The ball and socket joint, in cooperation with the spring, permits the biomechanical ankle to imitate the inversion-eversion, plantar flexion-dorsiflexion, and lateral rotation found in a normal human foot.

REFERENCES:
patent: 2470480 (1949-05-01), Fogg
patent: 3196463 (1965-07-01), Farneth
patent: 4306320 (1981-12-01), Delp
patent: 4442554 (1984-04-01), Copes

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