Determination of deformations of surgical tools
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Apr 30, 2003
filing date -
Nov 3, 2000
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a method of determining deformations of instruments having a tool with a central axis and a tool holder comprises the steps of establishing a mathematical relationship between the tool holder and the body, displacing the tool relative to the body, determining the relative position and spatial orientation of the tool with respect to the body, establishing mechanical contact between the tool and the body and/or entering the body with the tool and determining the deformation of the tool with respect to the virtual, non-deformed tool resulting from the load application onto the tool. The measurements in order to determine the deformation of the tool may be performed on the one hand by measuring the position and orientation of the tool holder and the body with respect to an on-site three-dimensional system of coordinates or on the other hand by means of forces gauges apt to measure the loads being effective on the tool holder.
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