Device, method and system for digitizing position and...

Details Device, method and system for digitizing position and... Device, method and system for digitizing position and...

A - Human Necessities

61

B

A61B 5/103 (2006.01) A61F 2/30 (2006.01)

Patent

CA 2537594

A device (10,10',20,20') for digitizing a center of rotation of a hip joint implant component (A,F) with respect to a bone element in computer-assisted surgery. The device (10,10',20,20') comprises a detectable member (12,22) trackable for position and orientation by a computer-assisted surgery system (30). A body (11,21) is connected to the detectable member (12,22) in a known geometry. The body (11,21) has a coupling portion (14,14',24,25) adapted to be coupled to the hip joint implant component (A,F) in a predetermined configuration. The center of rotation of the hip joint implant component (A,F) is calculable in the predetermined configuration as a function of the known geometry and of the position and orientation of the detectable member (12,22).

L'invention concerne un dispositif (10, 10', 20, 20') destiné à la numérisation d'un centre de rotation d'une composante de prothèse de la hanche (A, F) par rapport à un élément osseux en chirurgie assistée par ordinateur. Ce dispositif (10, 10', 20, 20') comprend un élément décelable (12, 22) indiquant une position et une orientation à un système de chirurgie assistée par ordinateur (30). Un corps (11, 21) est relié à l'élément décelable (12, 22) selon une géométrie connue. Ce corps (11, 21) comporte une partie de couplage (14, 14', 24, 25) conçue pour être couplée à la composante de prothèse de la hanche (A, F) selon une configuration prédéterminée. Le centre de rotation de la composante de prothèse de la hanche (A, F) peut être calculé dans la configuration prédéterminée sur la base de la géométrie connue, de la position et de l'orientation de l'élément décelable (12, 22).

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