Devices for passive motion of joints under traction

Details Devices for passive motion of joints under traction Devices for passive motion of joints under traction

1997-10-10

1999-09-21

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 58, A61B 1756

Patent

active

059547219

ABSTRACT:
A device for generating passive motion of a joint while applying traction has a proximal bracket for engaging a pin drilled into a proximal bone adjacent to the joint, and a distal bracket for engaging a pin drilled into a distal bone adjacent to the joint. The two brackets are connected by a tension-hinge mechanism which includes a hinge for permitting relative rotational movement of the brackets, and an adjustment mechanism. The adjustment mechanism is configured to allow substantially continuous adjustment of the distance between the hinge and at least one of the brackets so as to apply tension across the joint. The adjustment mechanism also includes a number of elastic elements deployed so as to allow elastic variation of the distance between the two brackets.

REFERENCES:
patent: 5100403 (1992-03-01), Hotchkiss et al.
patent: 5391167 (1995-02-01), Pong et al.
Krakauer et al, "Hinged Device for Fractures Involving The Proximal Interphalangeal Joint", Clinical Orthopaedics and Related Research,327: 29-37, 1996.
Schenck, R., "The Dynamic Traction Method", Hand Clinics, 10(2): 187-198, 1994.
Kearney et al, "The Therapist's Management of Intra-Articular Fractures", Hand Clinics, 10(2): 199-209, 1994.
Fahmy, N.R.M.., "Stockport Serpentine Spring System for the Treatment of Displaced Comminuted Intra-Articular Phalangeal Fractures", J. Hand Surgery, 15B(3): 303-311, 1990.
Fahmy et al, "The "S" Quatro in the Management of Fractures of the Hand", J. Hand Surgery, 17B: 321-331, 1992.
Fahmy et al, "Chronic Fracture Dislocations of the Proximal Interphalangeal Joint", J. Hand Surgery, 19B(6): 783-787, 1994.
Brochure, "S Quatro", Surgicraft Ltd., Redditch, Worcestershire B97 6HF, England.
Brochure, "Compass.RTM. Proximal Interphalangeal (PIP) JointHinge", Smith & Nephew Richards Inc., 1450 Brooks Rd., Memphis, TN 38116.
Advertisement for Pennig Dynamic Wrist Fixator, EBI Medical Sysytems 6 Upper Pond Rd., Patsappany, NJ.
Advertisement for Toronto Medical Corp., 901 Dillingham Rd., Pickering, Ont., Can., L1W 2Y5.
Advertisement for Danninger Medical Technology, Inc., 4140 Fisher Rd., Columbus, Ohio 43228-1067.

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