Surgery – Instruments – Stereotaxic device
Reexamination Certificate
2005-02-15
2005-02-15
Dawson, Glenn K. (Department: 3731)
Surgery
Instruments
Stereotaxic device
C378S206000, C385S147000, C430S945000, C359S641000, C033S227000
Reexamination Certificate
active
06855152
ABSTRACT:
A device to be used in combination with a surgical navigation system for defining the position of a straight line determined by an operating surgeon within a three-dimensional coordinate system in an operating theater. The devices includes a body (1) with a surface (2) and at least three markers (3) which emit waves (19) and the position of which can be determined within a three-dimensional coordinate system by a position detector belonging to the surgical navigation system. A laser (4) mounted on the body (1) emits a laser beam (5), directed away from the body (1), which has a geometrical central beam (6) and a wavelength in the visible range. The laser beam (5) is emitted in a geometrically defined position relative to the markers (3) so that the position of the central beam (6) relative to the three-dimensional coordinate system can be calculated from the previously measured positions of the markers (3) by a computer, which is also part of the surgical navigation system.
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Hehli Markus
Messmer Peter
Muller Paul
Regazzoni Pietro
Suhm Norbert
Dawson Glenn K.
Rankin, Hill Porter & Clark LLP
Synthes AG Chur
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