A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 19/00 (2006.01) A61F 2/46 (2006.01) B25J 13/08 (2006.01) G01B 21/16 (2006.01)
Patent
CA 2416139
The method of fast impingement detection between at least two bodies essentially comprises the steps of a) acquisition of three-dimensional image data of the at least two bodies (1;2) and thereof obtaining a data set of points on the surface of the bodies (1;2) by means of a computer (11); b) attaching a reference element (5;6) comprising at least three markers (7) each at each of the bodies (1;2) and measuring the three-dimensional coordinates of the markers (7) with respect to an on-site three-dimensional system of coordinates (4) by means of a position measurement device (14) and during displacement of the bodies (1;2); c) computing if and where two surface points (9;10) being each on the surface of separate body (1;2) and being closest to each other coincide within the on-site three-dimensional system of coordinates (4) by means of the computer (11).
L'invention concerne un procédé de détection de collision rapide entre au moins deux corps. Ce procédé consiste à (a) acquérir les données d'images tridimensionnelles d'au moins deux corps (1 ; 2) et à obtenir un ensemble de données de points sur la surface des corps (1 ; 2) au moyen d'un ordinateur (11) ; (b) fixer un élément de référence (5,6) comprenant au moins trois marqueurs (7) chacun à chacun des corps (1 ;2) et à mesurer les coordonnées tridimensionnelles des marqueurs (7) par rapport à un système tridimensionnel de coordonnées (4) sur le site au moyen d'un dispositif de mesure de position (14) et pendant le déplacement des corps (1 ;2) ; (c) calculer, à l'aide de l'ordinateur (11) si les deux points de surface (9 ; 10) sur la surface du corps séparé (1 ;2) et plus près l'un de l'autre correspondent dans le système tridimensionnel de coordonnées (4) et à quel endroit.
Ao Technology Ag
Osler Hoskin & Harcourt Llp
Synthes (u.s.a.)
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