A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 8/00 (2006.01) A61C 1/08 (2006.01) A61C 3/00 (2006.01) A61C 19/04 (2006.01)
Patent
CA 2477107
The invention relates to a method and device for placing implants (1) using a surgical template (11) which is made from tomographic cuts in the patient's jawbone (7). According to the invention, step drills (4) and calibrating drills (5), having a single standard diameter for each type of implant (1), are guided through drill bushings (18) which are inserted into bores (15) in the template (11) in order to produce any drilling sequence corresponding to an implant plan. The penetration depth of the drills (4, 5) is controlled by the height of the bores (15) or by the drill rings (21). The aforementioned template (11) bores (15) serve as a guide for the precise placement of the implants (1) owing to the adapted implant supports (3). Moreover, washers (23), which are mounted around the implant supports (3), limit compression in relation to the implants (1) while said implants are being placed (20). The above-mentioned characteristics serve to limit the required number of drills (4, 5) and implant supports (3) to the longest models only. The inventive method and device are particularly suitable for computer-assisted implantology systems.
L~invention concerne un procédé et un dispositif de mise en place d~implants (1) au moyen d~un gabarit (11) chirurgical élaboré à partir des coupes tomographiques de la mâchoire (7) d~un patient. Des forets étagés (4) et des forets calibreurs (5), d~un seul diamètre standard par type d~implants (1), sont guidés par des canons de forage (18) insérés dans des alésages (15) du gabarit (11) pour réaliser n~importe quelle séquence de forage correspondant à une planification implantaire. La profondeur de pénétration des forets (4, 5) est contrôlée par la hauteur des alésages (15) ou par des anneaux de forets (21). Les alésages (15) du gabarit (11) servent de guide pour le placement précis des implants (1) grâce à des porte-implants (3) adaptés. Des rondelles (23) insérées autour des porte-implants (3) limitent l~enfoncement des implants (1) au cours du placement (20). Ces caractéristiques permettent de restreindre le nombre des forets (4, 5) et des porte-implants (3) requis aux seuls modèles les plus longs. Le procédé et le dispositif selon l~invention conviennent particulièrement aux systèmes d~implantologie assistée par ordinateur.
Tardieu Philippe
Vrielinck Luc
Materialise Dental N.v.
Materialise Nv
Smart & Biggar
LandOfFree
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