Surgery – Truss – Perineal
Patent
1984-09-14
1986-10-14
Shay, F. Barry
Surgery
Truss
Perineal
269328, 128 84B, A61G 1300
Patent
active
046166378
ABSTRACT:
A shoulder traction applying apparatus which clamps to an operating table. The forearm of a patient is gripped by a tapering sleeve-like member and a cord therefrom is entrained over a pair of pulleys at opposite ends of a boom member. The remote end of the cord is selectively weighted to apply tension to the cord and achieve a desired traction. The boom is secured to the top member of a pair of separable members of which the lower member is clamped to the operating table. The top member is rotatable by a hand crank which turns a worm gear that meshes with a spur gear fixedly secured to the top member. The lower member may be raised or lowered by cranking a pinion of a rack and pinion assembly wherein the rack is mounted on the lower member. Hand controlled spring pressure locks the lower member in the position selected by the rack and pinion assembly. A caster-mounted stand stores the top and lower members when the apparatus is not in use.
REFERENCES:
patent: 1257764 (1918-02-01), Tascarella
patent: 2306929 (1942-12-01), Bergamini
patent: 2590739 (1952-03-01), Wagner et al.
Caspari Richard B.
Thimsen James A.
Whipple Terry L.
Matthews Richard P.
Precision Surgical Instruments, Inc.
Shay F. Barry
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