A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/70 (2006.01) F16F 1/12 (2006.01) F16F 3/10 (2006.01)
Patent
CA 2469008
The invention relates to a damping element (1) , comprising: A) two spring elements (2; 4), coaxial or parallel to a longitudinal axis (3) and axially terminated with two connector pieces (5; 6), whereby B) the first spring element (2) has a spring rate (F), C) the second spring element (4) has a spring rate (f) and D) the spring rates (F) and (f) are different from each other. The invention further relates to a device for stabilising adjacent vertebral bodies with A) N pedicle screws or pedicle hooks (12), where N >= 3, whereby B) each pedicle screw or a pedicle hook (12) has attachment means (13) which permit the attachment of longitudinal fixing elements (7) and C) an element (14) acting as a spring is placed between two adjacent pedicle screws (12) or pedicle hooks.
L'invention concerne un élément d'amortissement (1) comportant A) deux éléments ressort (2, 4) parallèles ou coaxiaux à l'axe longitudinal (3), et deux éléments de connexion (5, 6) sur l'extrémité axiale ; B) le premier élément ressort (2) présente une raideur F ; C) le deuxième élément ressort (4) présente une raideur f ; et, D) les raideurs F et f sont différentes. L'invention concerne également un dispositif de stabilisation de vertèbres adjacentes comportant A) N vis pédiculaires ou crochets pédiculaires (12), N >= 3 ; B) chaque vis pédiculaire ou crochet pédiculaire (12) comporte des éléments de réception (13) permettant la réception d'éléments de fixation longitudinaux (7) ; et ; C) un élément (14) servant de ressort est logé entre deux vis pédiculaires (12) ou crochets pédiculaires adjacents.
Frigg Robert
Studer Armin
Marks & Clerk
Mathys Medizinaltechnik Ag
Synthes (usa)
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