Multifaceted tracker device for computer-assisted surgery
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United States of America Patent
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Feb 26, 2013
Grant Date -
May 3, 2007
app pub date -
Nov 2, 2006
filing date -
Nov 3, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A tracker device of the type is associated with a surgical instrument and being trackable in space by a CAS system such that a position of the surgical instrument is calculable. A support is adapted to be connected to the surgical instrument. Optical elements are mounted to the support in a first pattern so as to be detectable by the CAS system along a first range of visibility. Other optical elements are mounted to the support in a second pattern so as to be detectable by the CAS system along a second range of visibility, with the first range of visibility and the second range of visibility having at most a common portion, whereby a position of the surgical instrument is tracked within the first and the second range of visibility as a function of the detection of any one of the patterns of the optical elements.
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