Surgery – Truss – Perineal
Patent
1978-12-08
1981-06-23
Michell, Robert W.
Surgery
Truss
Perineal
128 92R, A61F 500
Patent
active
042744016
ABSTRACT:
The present invention provides an apparatus for use in the correction of spinal deformities, such as scoliosis, by posterior surgical procedures. It has been a problem to achieve secure hooking attachment to either laminae or transverse processes due to transverse and angular displacements of the individual vertebrae; and it has been a problem to provide adequate rotational forces for correction of rotational deformities. The present invention solves these problems by the use of a carrier (88) and a hook (90) that is attached to the carrier (88) by a spherical surface (102) of an attaching portion (100), and by the use of an angular pull carrier (182) that increases the rotational correcting force of a hook (90). The principle uses of the invention include orthesis and prosthesis.
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Harrington (R); Harrington Spine Instrumentation & Fusion Techniques, Zimmer Catalog - 1973 - Warsaw, Indiana.
Zielke; Ventrole Derotationsspondylodese; Arch Orthop. Unfall-Chir 85, 257-277, (1976).
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Armstrong et al.; A Transverse Loading System Applied to a Modified Harrington Inst.; Clinical Orthopaedics & Related Research, #108, May 1978, Submitted by Applicant.
Dwyer; Instrumentation for Dwyer Spinal Technique; Zimmer Catalog - No date, Submitted by Appl.
Herrmann; Metal Plate Fixation . . . Cervical Spine; Acta Neurochirurgica 32, 101-111, (1975), Submitted by App.
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Harrington (U); Harrington Distraction System; pp. 2-5, Zimmer Catalog - No date, Submitted by App.
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Cotrel D. T. T.; Cotrel D. T. T. System; Adin J. of Bone & Joint Surgery - Sep. 78.
Michell Robert W.
Miller Wendell E.
Rose Arthur S.
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