A - Human Necessities – 61 – F
Patent
A - Human Necessities
61
F
A61F 2/44 (2006.01)
Patent
CA 2342633
A small profile, peanut spectacle-shaped prosthetic disc device (20) is provided. The device housing is comprised of two longitudinally split hollow halves (22, 24), 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, even under maximum physiological loads, do not contact one another directly. The shell shape permits relatively easy introduction of the intervertebral spaces in the thoracic or lumbar region of the human spine.
Cette prothèse discale (20), en forme d'arachide ou de lunettes, à profil mince, comprend un logement fendu longitudinalement et présentant deux moitiés creuses (22, 24) entre lesquelles on a disposé plusieurs corps souples (41, 42), de forme discoïde, lesquels peuvent être du type polymère ou peuvent contenir un hydrogel. Ces corps peuvent reposer sur des surfaces concaves (51, 52) situées à l'intérieur de chaque côté du logement cylindrique divisé en deux moitiés, lesquelles, même sous des charges physiologiques maximales, n'entrent pas en contact direct l'une avec l'autre. La forme de coquille permet une introduction relativement facile dans les espaces intervertébraux de la région thoracique ou lombaire de la colonne vertébrale humaine.
Mckay-Carey & Company
Sdgi Holdings Inc.
Spinal Dynamics Corporation
LandOfFree
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