Thumb and finger extension device

Details Thumb and finger extension device Thumb and finger extension device

1983-08-25

1986-03-04

Peshock, Robert

Surgery

Truss

Perineal

128 84R, 128 92G, A61F 504

Patent

active

045734593

ABSTRACT:
A device for extending a phalangeal bone in the thumb or one of the fingers of a hand. The device includes proximal and distal pairs of bone pins, a pair of screw threaded bars for adjusting the distance between the pairs of bone pins, first and second pairs of guide posts and four pairs of pin retaining members. The guide posts and pin retaining members retain the bone pins in relative alignment as the thumb or finger is progressively extended by adjustment of the bars. Each bar is laterally offset from the corresponding pair of guide posts, while each pair of guide posts is symmetrically positioned relative to the bone pins. The device further includes a brass bushing press fit within each of the apertures which serves to maintain accurate alignment of the bone pins as the thumb or finger is extended. A retaining clip is removably attached at one end of each of the guide posts. Each bar includes a rectangular head for turning the bars and a measuring block medially positioned along the length thereof to assist in measuring the amount of thumb or finger extension.

REFERENCES:
patent: 2002021 (1935-05-01), Rouse
patent: 2185322 (1940-01-01), Anderson
patent: 2204266 (1940-06-01), Wilcox
patent: 2237251 (1941-04-01), Longfellow
patent: 2247187 (1941-06-01), Cunningham
patent: 2371519 (1945-03-01), Haynes
patent: 2434431 (1948-01-01), Pincock
patent: 3583397 (1971-06-01), Baddour
patent: 3709219 (1973-01-01), Halloran
patent: 3809075 (1974-05-01), Matles
patent: 3900025 (1975-08-01), Barnes, Jr.
patent: 4006740 (1977-02-01), Volkov et al.
patent: 4159716 (1979-07-01), Borchers
patent: 4187841 (1980-02-01), Kautson
patent: 4220146 (1980-09-01), Cloutier

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