Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2011-03-22
2011-03-22
Winakur, Eric F (Department: 3768)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S425000
Reexamination Certificate
active
07912532
ABSTRACT:
The invention relates to a method for positional optimization in navigation, in particular neural navigation in surgery with an operation microscope and at least one optoelectronic image detector which may be connected to the microscope and also a computer system. The data obtained from the at least one image detector which lie in the microscope field-of-view for the operator, contain information on the position of an operation instrument, in particular the instrument tip. The actual position of the instrument in the x- and y-direction as well as in the z-direction of a three-dimensional coordinate system is continuously or intermittently determined from the relevant positional data. A separation determination is carried out for the positional determination in the z-direction by means of depth of focus evaluation and/or stereoscopic image analysis. The invention further relates to a navigation instrument, using marking, close to the instrument tip, lying within the field of view of the microscope during use thereof.
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Eckert Lars
Grigat Rolf-Rainer
Hoell Thomas
Koetke Jochen
Oelckers Stefan
Laryea Lawrence N
Moeller-Wedel GmbH
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Winakur Eric F
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