Surgery – Truss – Pad
Patent
1978-08-14
1980-05-13
Little, Willis
Surgery
Truss
Pad
33174D, 128781, A61B 510
Patent
active
042023556
ABSTRACT:
An X-ray grid orthometer including a support having a generally horizontal surface over which is disposed a frame swingable from side-to-side relative to a fixed indicator which permits alignment of the frame with an X-ray tube of an associated X-ray machine. The frame can be in the form of a slide bearing, which includes a pair of substantially parallel slides separately mounted on associated slide guides for independent movement, and terminating in foot rests against which can be placed the legs of a person lying on the horizontal support surface in order to obtain an indication of leg length of the person, or the frame can be a four-link parallel-motion mechanism using a pair of parallel links in place of the slides. A weight bearing effect, also known as a spine-limb compression, can be achieved despite the prone position of the patient by use of a flexible element disposed about a pair of pulleys mounted on the support so as to permit the person whose leg lengths are being measured to pull with both hands and, thus, compress the feet thereof against plates of the foot rest. In this manner, visceral obstruction can be reduced by placing the subject in a supine position.
REFERENCES:
patent: 3520293 (1970-07-01), Atherholt
Jacobson Harvey B.
Little Willis
O#Brien Clarence A.
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