Method and apparatus for perspective inversion
First Claim
Patent Images
1. A method for orienting a displayed representation of a surgical instrument while using a surgical instrument navigation system, comprising:
- operating the surgical instrument navigation system to display a two-dimensional image of a patient that is based on an x-ray projection through the patient;
operating the surgical instrument navigation system to track an instrument location of the surgical instrument relative to the patient;
selecting a three-dimensional graphic rendering to represent the surgical instrument to be superimposed on the displayed two-dimensional image, wherein the three-dimensional graphic rendering is selected from one of a rendered first three-dimensional representation of the surgical instrument as the surgical instrument would visually appear from a first perspective at a position relative to the patient or a rendered second three-dimensional representation of the surgical instrument as the surgical instrument would visually appear from a second perspective that is different from the first perspective at the position relative to the patient, wherein the selection is based on an actual operator perspective of the surgical instrument relative to the patient, wherein a profile of the graphic rendering is the same between the rendered first three-dimensional representation of the surgical instrument and the rendered second three-dimensional representation of the surgical instrument; and
viewing the selected three-dimensional rendering that represents the surgical instrument superimposed on the displayed two-dimensional image, wherein the selected three-dimensional rendering that represents the surgical instrument is one of the rendered first three-dimensional representation or the rendered second three-dimensional representation;
wherein the first perspective represents a first orientation of two possible orientations of the surgical instrument relative to the patient and the second perspective represents a second orientation of the two possible orientations of the surgical instrument relative to the patient.
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Abstract
A surgical instrument navigation system is disclosed that allows a surgeon to invert the three-dimensional perspective of the instrument to match their perspective of the actual instrument. A data processor is operable to generate a three-dimensional representation of a surgical instrument as it would visually appear from either of at least two different perspectives and to overlay the representation of the surgical instrument onto an image data of the patient. The image data and the representations can be displayed on a display.
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Citations
27 Claims
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1. A method for orienting a displayed representation of a surgical instrument while using a surgical instrument navigation system, comprising:
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operating the surgical instrument navigation system to display a two-dimensional image of a patient that is based on an x-ray projection through the patient; operating the surgical instrument navigation system to track an instrument location of the surgical instrument relative to the patient; selecting a three-dimensional graphic rendering to represent the surgical instrument to be superimposed on the displayed two-dimensional image, wherein the three-dimensional graphic rendering is selected from one of a rendered first three-dimensional representation of the surgical instrument as the surgical instrument would visually appear from a first perspective at a position relative to the patient or a rendered second three-dimensional representation of the surgical instrument as the surgical instrument would visually appear from a second perspective that is different from the first perspective at the position relative to the patient, wherein the selection is based on an actual operator perspective of the surgical instrument relative to the patient, wherein a profile of the graphic rendering is the same between the rendered first three-dimensional representation of the surgical instrument and the rendered second three-dimensional representation of the surgical instrument; and viewing the selected three-dimensional rendering that represents the surgical instrument superimposed on the displayed two-dimensional image, wherein the selected three-dimensional rendering that represents the surgical instrument is one of the rendered first three-dimensional representation or the rendered second three-dimensional representation; wherein the first perspective represents a first orientation of two possible orientations of the surgical instrument relative to the patient and the second perspective represents a second orientation of the two possible orientations of the surgical instrument relative to the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for orienting a displayed representation of a surgical instrument while using a surgical instrument navigation system, comprising:
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operating the surgical instrument navigation system to display a two-dimensional image of a patient acquired from a first perspective of a x-ray image receiver; operating the surgical instrument navigation system to track an instrument location of the surgical instrument relative to the patient; selecting a three-dimensional graphical representation from one of a first rendered three-dimensional graphical representation of the surgical instrument at the instrument location at a first instrument perspective relative to the patient and the x-ray image receiver or a second rendered three-dimensional graphical representation of the surgical instrument at the instrument location at a second instrument perspective relative to a x-ray radiation source that is opposite the x-ray image receiver; and viewing on a display the selected three-dimensional graphical representation of the first rendered three-dimensional graphical representation of the first instrument perspective or the second rendered three-dimensional graphical representation of the second instrument perspective superimposed on the two-dimensional image at the tracked instrument location superimposed on the two-dimensional image of the patient; wherein the profile is the same and only contours are affected of the selected three-dimensional graphic representation superimposed on the displayed two-dimensional image between the first rendered three-dimensional graphical representation and second rendered three-dimensional graphical representation, wherein the contours give the respective first rendered three-dimensional graphical representation or the second rendered three-dimensional graphical representation of the surgical instrument a first appearance that is inverted relative to a second appearance relative to the displayed two-dimensional image. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for orienting a displayed representation of a surgical instrument while using a surgical instrument navigation system, comprising:
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viewing, by a user, a displayed image including a two-dimensional image of a patient received from an x-ray imaging device; operating the surgical instrument navigation system to track a first instrument position of the surgical instrument relative to the patient; inputting, by the user, a first selected perspective of the surgical instrument into the surgical instrument navigation system, wherein the selected perspective is an actual perspective of the surgical instrument as the surgical instrument visually appears from a perspective of the user relative to the patient when viewing the surgical instrument at a location of the user at the tracked first instrument position or a second selected perspective of the surgical instrument into the surgical instrument navigation system, wherein the second selected alternative perspective is different than the first selected perspective; viewing on a display device a superimposed three-dimensional graphical rendering of the surgical instrument at the inputted first selected perspective or the second selected perspective of the surgical instrument on the viewed two-dimensional image of the patient; and maintaining a profile of the three-dimensional graphical rendering of the surgical instrument superimposed on the displayed image to be the same between (i) the inputted first selected perspective and (ii) the inputted second selected perspective; wherein only contours are effected between (i) the three-dimensional graphical rendering of the surgical instrument superimposed on the displayed image at the inputted first selected perspective and (ii) the three-dimensional graphical rendering of the surgical instrument superimposed on the displayed image at the inputted second selected perspective to give the respective (i) three-dimensional graphical rendering of the surgical instrument superimposed on the displayed image at the inputted first selected perspective or (ii) the three-dimensional graphical rendering of the surgical instrument superimposed on the displayed image at the inputted second selected perspective an appearance of into or out of the displayed image. - View Dependent Claims (22, 23, 24, 25, 26)
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27. A method for orienting a displayed representation of a surgical instrument while using a surgical instrument navigation system, comprising:
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viewing, by a user, a displayed image including a two-dimensional image of a patient received from an x-ray imaging device; operating the surgical instrument navigation system to track a first instrument position of the surgical instrument relative to the patient; inputting, by the user, a selected perspective of the surgical instrument into the surgical instrument navigation system, wherein the selected perspective is an actual perspective of the surgical instrument as the surgical instrument visually appears from a perspective of the user relative to the patient when viewing the surgical instrument at a location of the user at the tracked first instrument position; viewing on a display device a superimposed three-dimensional graphical rendering of the surgical instrument at the inputted selected perspective of the surgical instrument on the viewed two-dimensional image of the patient; and maintaining a profile of the three-dimensional graphical rendering to be the same between a first selected perspective rendered three-dimensional representation of the surgical instrument and a second selected perspective rendered three-dimensional representation of the surgical instrument; wherein the three-dimensional graphical rendering superimposed on the displayed image of the first selected perspective rendered three-dimensional representation of the surgical instrument or the second selected perspective rendered three-dimensional representation of the surgical instrument only affects contours that give the respective first selected perspective rendered three-dimensional representation of the surgical instrument or the second selected perspective rendered three-dimensional representation of the surgical instrument an appearance into or out of the displayed image.
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Specification