Adjustable flexion-extension hinge for hinged limb immobilizer

Details Adjustable flexion-extension hinge for hinged limb immobilizer Adjustable flexion-extension hinge for hinged limb immobilizer

1990-01-16

1991-03-19

Hafer, Robert A.

Surgery

Truss

Perineal

128 80F, 128882, 128 88, A61F 300, A61F 500, A61F 537, A61F 504

Patent

active

050001698

ABSTRACT:
A hinged limb immobilizer device for setting and securely maintaining a predefined range of motion for a limb, requires no special tools for installation or adjustment. Limit stops are adjusted by simply loosening the appropriate thumbscrew, and moving the limit stop to the prescribed setting. Separate color-coded, labelled scales for flexion and extension match-up with separate color-coded thumbscrews to avoid misunderstandings. Security of adjustment is optimized by limit stops which embody both friction stop and positive stop characteristics, resulting in a unique "three-point locking" mechanism.

REFERENCES:
patent: 4088130 (1978-05-01), Applegate
patent: 4463751 (1984-08-01), Bledsoe
patent: 4523585 (1985-06-01), Lamb
patent: 4554913 (1985-11-01), Womack
patent: 4599998 (1986-07-01), Castillo
patent: 4620532 (1986-11-01), Houswerth
patent: 4628916 (1986-12-01), Lerman
patent: 4697583 (1987-10-01), Mason
patent: 4732143 (1988-03-01), Kausek
patent: 4773404 (1988-09-01), Townsend
patent: 4856500 (1989-08-01), Spademan

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