Surgery – Instruments – Orthopedic instrumentation
Patent
1997-12-09
1999-08-03
Tucker, Guy V.
Surgery
Instruments
Orthopedic instrumentation
606 54, H61B 1760
Patent
active
059318376
ABSTRACT:
A fixator for adjustably securing a first skeletal element on a superior side of an ankle joint relative to a skeletal element on the inferior side of the ankle joint. The fixator includes a bone screw clamping assembly that preferably secures a pair of screws to the bones of the foot. The bone screw clamping assembly is attached to a central body of the fixator and is operative for articulating the pair of bone screws about an axis substantially co-axial with the anatomical pivot axis of the ankle joint. The bone screw clamping assembly further defines a radiographic window for permitting lateral radiographic examination of the anatomical pivot axis of the ankle joint.
REFERENCES:
patent: 2020262 (1935-11-01), Longfellow
patent: 5112140 (1992-05-01), Asche et al.
patent: 5437667 (1995-08-01), Papierski et al.
patent: 5620442 (1997-04-01), Bailey et al.
patent: 5662650 (1997-09-01), Bailey et al.
Bonar, S.K., Marsh, J.L.; Unilateral External Fixation For Severe Pilon Fractures, Foot and Ankle, 14:57-64, 1993.
Marsh, J.L., Bonar S., Nepola, J.V., DeCoster, T.A., Hurwitz, S.R., Use of An Articulated External Fixator For Fractures of the Tibial Plafond; J Bone Joint Surg 77-A:1498-1509, 1995.
Fitzpatrick, D.C., Marsh, J.L., and Brown T.D.; Articulated External Fixation of Pilon Fractures: The Effects On Ankle Joint Kinematics; J. Orthop Trauma; 9:76-82, 1995.
Fitzpatrick, D.; Foels, W.S., Pedersen, D.R.; Marsh, J.L; Saltzman, C.L., Brown, T.D.; An Articulated Ankle External Fixation System That Can Be Aligned With the Ankle Axis; Iowa Orthop. Journal, vol. 15, 197-203, 1995.
Bottlang, M., Marsh, J.L., Brown, T.D.; Pathway of Instant Axes of Rotation of the Ankle Joint for the Application of External Articulated Fixation. Abstract, 2 pages, undated.
Bottlang, M., Marsh, J.L., Brown, T.D.; Articulated External Ankle Fixation: Effect of Hinge Axis Position on Joint Kinetics, 2 pages, undated.
EBI Medical Systems brochure, "New Ball Joint Articulating Ankle", 1 page, dated Jul., 1994.
EBI Medical Systems brochure, "If You Think Orthofix Is Just for Fractures . . . Think Again|", 1 page, dated Jan., 1994.
Bottlang Michael
Marsh J. Lawrence
Tucker Guy V.
University of Iowa Research Foundation
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