A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/44 (2006.01) A61F 2/00 (2006.01) A61F 2/30 (2006.01) A61F 2/46 (2006.01)
Patent
CA 2338379
A small profile, cylindrically shaped prosthetic disc device (10) is provided. The device housing is comprised of two longitudinally split hollow halves (20, 30), between which are contained multiple discoid shaped resilient bodies (41, 42) which may be of a polymeric type, or they may contain hydrogel. These bodies may lie in concave surfaces (51, 52) located on the interior of each side of the split cylindrical housing. The housing halves (20, 30) even under maximum physiological loads, do not contact one another directly. Threads on the exterior surface of the cylindrical housing facilitates insertion and retention in the prepared bone opening.
Cette invention a trait à un dispositif constituant une prothèse discale (10), mince et de forme cylindrique. L'enveloppe du dispositif est composée de deux moitiés creuses fendues longitudinalement (20, 30) entre lesquelles sont contenus plusieurs corps élastiques de forme discoïde (41, 42), pouvant être de type polymère ou contenir un hydrogel. Ces corps peuvent reposer sur des surfaces concaves (51, 52) se trouvant de chaque coté de l'enveloppe fendue longitudinalement. Ces moitiés d'enveloppe (20, 30) n'entrent pas directement en contact l'une avec l'autre même si des charges physiologiques maximales s'exercent sur elles. Les filets se trouvant à la surface extérieure de l'enveloppe cylindrique facilitent l'insertion et le maintien en place dans l'ouverture osseuse ménagée à cet effet.
Bryan Vincent
Kunzler Alex
Mckay-Carey & Company
Sdgi Holdings Inc.
Spinal Dynamics Corporation
LandOfFree
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