Therapeutic traction appliance having self-calibrating mechanism

Details Therapeutic traction appliance having self-calibrating mechanism Therapeutic traction appliance having self-calibrating mechanism

1984-03-02

1985-10-15

Apley, Richard J.

Surgery

Truss

Perineal

188 718, A61F 501, F16D 6552

Patent

active

045467668

ABSTRACT:
A device for applying a controlled amount of traction to a human body. The device includes an arm one end of which is connected by a harness to a patient for applying traction periodically as the patient pivots the arm and the other end of which is connected by a ratchet assembly to a drag wheel rotatably mounted in a frame. The magnitude of the traction applied is determined by the amount of friction applied to the wheel by a pair of opposed brake pads engaging opposite sides of the wheel. A manual adjusting mechanism is provided for one of the brake pads to set a desired level of traction to be applied by the arm, and a calibrating mechanism is connected to the other brake pad for automatically adjusting the same during operation of the manual adjusting mechanism.

REFERENCES:
patent: 2822805 (1958-02-01), Hill
patent: 3550728 (1970-12-01), Seip et al.

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