Orthopedic bracing mechanism for facilitating hip reciprocation

Details Orthopedic bracing mechanism for facilitating hip reciprocation Orthopedic bracing mechanism for facilitating hip reciprocation

1992-12-15

1994-06-14

Hafer, Robert A.

Surgery: splint, brace, or bandage

Orthopedic bandage

Splint or brace

482 51, A63B 2304

Patent

active

053205901

ABSTRACT:
An orthopedic bracing device worn around the posterior pelvic area of a person suffering from severe lower extremity weakness such as found with certain spinal cord injuries resulting in paraplegia. Children born with Spina Bifida who are paraplegics are also potential users of this type of brace. This device is a mechanism whereby the user is forced to extend one hip joint backwards when the other hip joint is flexed forward, thus generating the normal walking pattern of reciprocation. The mechanism consists of two pivot bars with their pivot point located equidistant from the center of the pelvic band. Two lever arms extend from each pivot point. The longer lever arm curves around towards the mechanical hip joint of the brace and attaches through a semi-rigid linkage system. The shorter lever arm extends downwards and attaches to an adjustable connecter bar. The connecter bar joins the two identical pivot bars. As one leg steps forward, forces are transferred through the mechanism forcing the other leg to extend backwards.

REFERENCES:
patent: 62982 (1867-03-01), Tucker
patent: 3095875 (1963-07-01), Davidson et al.
patent: 4263901 (1981-04-01), Nichols
patent: 4497315 (1985-02-01), Fettweis et al.
patent: 4697808 (1987-10-01), Larson et al.
patent: 4946156 (1990-08-01), Hart
patent: 4964628 (1990-10-01), Poplawski

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