Method of manufacturing a prosthesis to be fixed to implants...

A - Human Necessities – 61 – C

Patent

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A61C 13/00 (2006.01)

Patent

CA 2168104

The invention provides a method for manufacturing a prosthesis to be fixed to implants in the jawbone of a patient. The method has as a characteristic feature that by means of at least one camera (40, 41, 42) arranged at the opened mouth of the patient, recordings are made of die implants (31-37) already fixed to the jaw of the patient from at least two different positions; these recordings ace converted into electrical signals; by means of a photogrammetric method the electrical signals an processed using at least one calculating unit (47) for obtaining position and orientation information of the implants; and the position and orientation information is used for the highly accurate manufacture of at least a part of die prosthesis.

L'invention concerne un procédé de fabrication d'une prothèse se fixant sur des implants placés dans la mâchoire d'un patient. Ce procédé a la particularité d'enregistrer, grâce au moins à une caméra (40, 41, 42) placée devant la bouche ouverte du patient, les implants (31-37) déjà fixés sur la mâchoire du patient à partir d'au moins deux positions différentes; on convertit ces enregistrements en signaux électriques; au moyen d'un procédé photogrammétrique, on traite les signaux électriques à l'aide d'au moins une unité de calcul (47), en vue d'obtenir des informations sur la position et l'orientation des implants; puis les informations sur la position et l'orientation de ces implants sont utilisées en vue de procéder à une fabrication de haute précision d'au moins une partie de la prothèse.

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