Apparatus for imparting continuous passive motion to a lower lim

Details Apparatus for imparting continuous passive motion to a lower lim Apparatus for imparting continuous passive motion to a lower lim

1989-01-23

1990-06-05

Apley, Richard J.

Surgery

Truss

Perineal

A61H 102

Patent

active

049304976

ABSTRACT:
An apparatus is provided for imparting passive motion exercise to a lower limb of a patient. The apparatus includes a base and a thigh support member having a pair of elongated parallel spaced-apart brace members pivoted at their respective first ends to the base. The other ends of the thigh support brace members terminate at a mechanical hinge. A lower leg support includes a pair of parallel spaced-apart brace members extending from the mechanical hinge. The base is provided with a slide surface for supporting the other ends of the brace members of the lower leg support while allowing for extension and retraction thereof. The mechanical hinge includes at least a shaft fixed to the thigh support with the brace members lower leg support journaled to the shaft. An electric motor is mounted to the lower leg support to drive the shaft such that the angular movement is provided between the thigh support and the lower leg support, whereby the angular speed is maintained constant when motor speed is constant.

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