Method and device for instrument, bone segment, tissue and organ navigation
First Claim
1. A method for instrument and bone segment as well as tissue and organ navigation, comprising the steps of:
- detecting position data of position reference bodies arranged on bones, tissue or organs and contour data and/or surface data of geometric figures arranged on or spatially correlated with the position reference bodies, and mathematically processing the data in such a way that the position data and the contour and/or surface data can be represented in a common coordinate system.
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Abstract
The invention relates to a method and device for referencing between a data set, which describes geometrically the spatial model of a body, and the real physical environment in which the body is placed. A three-dimensional position reference body is used on the real body. The position reference body has one or more elementary bodies or markers whose 3-dimensional position can be detected with sensors and which define a fixed geometric reference with respect to the center of gravity of the body or to other body reference volumes. For registration, the position reference body and/or its elementary bodies are correlated in the data model and in the physical world.
15 Citations
17 Claims
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1. A method for instrument and bone segment as well as tissue and organ navigation, comprising the steps of:
- detecting position data of position reference bodies arranged on bones, tissue or organs and contour data and/or surface data of geometric figures arranged on or spatially correlated with the position reference bodies, and mathematically processing the data in such a way that the position data and the contour and/or surface data can be represented in a common coordinate system.
- View Dependent Claims (2)
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3. A device for instrument and bone segment as well as tissue and organ navigation, comprising
a 3-D marker position detection unit for detecting signals from 3-D markers, the 3-D marker position detection unit being coupled to an optical 3-D scanner or radar unit for detecting surfaces; - and a geometric figure arrangement being one or both of at least one geometric figures connected with each of said 3-D markers or at least one 3-D markers shaped as a geometric figures, wherein the geometric figure is detectrable by the 3-D scanner, thereby allowing a determination of the coordinates of the 3-D markers on the display and processing unit.
- View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification