Recording goniometer

Details Recording goniometer Recording goniometer

1992-04-30

1993-11-23

Pellegrino, Stephen C.

Surgery

Truss

Pad

128774, 33471, 33512, A61B 5103, G01B 910

Patent

active

052634922

ABSTRACT:
A recording goniometer for affixation to an area surrounding a flexing joint. The goniometer measures and records the flexibility or extent of limb movement about a joint and further permits separate comparative recordation of joint movement as a determination of healing progress. The goniometer comprises extension elements distally connected to permit angular separation. For accuracy in measuring the extent of angular separation, the extension elements are also connected with a geared movement. In use, each extension element is removably attached to respective parts of the limb which extend from the joint, with the area of attachment proximally covering the joint. A platen member is integrated with one of the extension elements and a scribing element is inegrated with the other extension element. A replaceable recordation paper, with a preprinted measurement scale, is affixed to the platen member into writable contact with the scribing element, which circumscribes an arc on the recordation paper in congruence with the extent of movement of the joint. The scribing element is movable, along the radial length of the extension element with which it is integrated, into various locked positions. With such movement, it can record concentric arc segments which readily indicate comparative subtended arc segments as an indication of change or improvement of joint movement and the extent thereof.

REFERENCES:
patent: 1590499 (1926-06-01), Cozad
patent: 4436099 (1984-03-01), Raftopoulos
patent: 4485825 (1984-12-01), Domjan et al.
patent: 4549555 (1985-10-01), Fraser et al.
patent: 4586495 (1986-05-01), Petrofsky
patent: 4771548 (1988-09-01), Donnery
patent: 4883066 (1989-11-01), Widdoes et al.
patent: 5027688 (1991-07-01), Suzuki et al.

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