Therapeutic traction apparatus

Details Therapeutic traction apparatus Therapeutic traction apparatus

1980-09-05

1983-04-05

Apley, Richard J.

Surgery

Truss

Perineal

A61F 500

Patent

active

043787916

ABSTRACT:
An apparatus is disclosed which is adapted to statically or intermittently apply a traction force to the body of a patient for therapeutic purposes. The apparatus includes a novel control means for cyclically reversing the direction of rotation of the wind-up drum upon predetermined minimum and maximum forces being present in the tension cord, and wherein the actual tension in the cord is monitored by a control circuit which provides an electrical output which is linearly porportional to the tension. The output signal is fed to a comparator circuit, where it is compared with independently selectable signals representing minimum and maximum tension forces, to control the wind-up and wind-down of the cord on the drum. The apparatus further includes several safety features for assuring the proper and safe functioning of the apparatus.

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patent: 4258707 (1981-03-01), Lettinga
patent: 4266537 (1981-05-01), Bonin

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