Method and instrument for surgical navigation
First Claim
1. A method for optimizing identification of a current position of an operating instrument in surgical navigation, including neuronavigation, with an operating microscope having an optoelectronic image receiver, the method comprising:
- obtaining first location data of a location of the operating instrument from an optical or magnetic navigation system;
obtaining second location data of a location of the operating instrument from the optoelectronic image receiver of the operating microscope, said second location data further including data resulting from performing a depth of focus evaluation, a stereoscopic image analysis, or an evaluation of signals obtained by a PMD (Photonic Mixer Device) including the pertinent modulated illumination to supplement a depth component of the second location data; and
determining an actual position of the operating instrument in a three-dimensional coordinate system based on the obtained first and second location data.
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Accused Products
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.
47 Citations
26 Claims
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1. A method for optimizing identification of a current position of an operating instrument in surgical navigation, including neuronavigation, with an operating microscope having an optoelectronic image receiver, the method comprising:
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obtaining first location data of a location of the operating instrument from an optical or magnetic navigation system; obtaining second location data of a location of the operating instrument from the optoelectronic image receiver of the operating microscope, said second location data further including data resulting from performing a depth of focus evaluation, a stereoscopic image analysis, or an evaluation of signals obtained by a PMD (Photonic Mixer Device) including the pertinent modulated illumination to supplement a depth component of the second location data; and determining an actual position of the operating instrument in a three-dimensional coordinate system based on the obtained first and second location data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A system for optimizing identification of a current position of an operating instrument in surgical navigation, including neuronavigation, the system comprising:
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an operating microscope including an optoelectronic image receiver; means for obtaining first location data of a location of the operating instrument from an optical or magnetic navigation system; means for obtaining second location data of a location of the operating instrument from the optoelectronic image receiver of the operating microscope, said second location data further including data resulting from performing a depth of focus evaluation, a stereoscopic image analysis, or an evaluation of signals obtained by a PMD (Photonic Mixer Device) including the pertinent modulated illumination to supplement a depth component of the second location data; and means for determining an actual position of the operating instrument in a three-dimensional coordinate system based on the obtained first and second location data.
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Specification