A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01) A61B 17/88 (2006.01)
Patent
CA 2678189
A dynamic fixation medical implant having at least two bone anchors includes a longitudinal connecting member assembly having an inner elastic molded core and an outer spacer, the core and spacer being disposed between a pair of solid substantially rigid end portions. The assembly may further include a washer and a nut with the inner core or core portion being pre-tensioned. Alternatively, the outer spacer is molded over the inner elastic core, the core being in a neutral, compressed, tensioned or bent orientation during over molding of the spacer.
L'invention concerne un implant médical à fixation dynamique présentant au moins deux ancrages osseux qui comprennent un ensemble élément de liaison longitudinal muni d'un noyau intérieur élastique moulé et d'un élément d'espacement extérieur, le noyau et l'élément d'espacement étant disposés entre une paire de parties d'extrémité sensiblement rigides pleines. L'ensemble peut comprendre également une rondelle et un écrou, le noyau intérieur ou la partie de noyau étant préalablement soumis à une tension. En variante, l'élément d'espacement extérieur est moulé sur le noyau intérieur élastique qui est positionné selon une orientation neutre, comprimée, tendue ou incurvée pendant un surmoulage de l'élément d'espacement.
Fetherstonhaugh & Co.
Jackson Roger P.
LandOfFree
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