Surgical navigation tracker, system and method
First Claim
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1. A system for orienting a surgical device, comprising:
- a surgical navigation system having a display unit;
a navigation tracker having a body including a geometrical feature defining an unobstructed axial channel extending along the body between opposite open ends and capable of being movably coupled to a surgical device having an effector axis, the navigation tracker capable of being tracked by the navigation system, wherein there is a known relation between the navigation tracker and the effector axis when the surgical device is disposed in and moving longitudinally along the axial channel;
a first circuit adapted to calculate an orientation of the effector axis of the surgical device from the known relation between the navigation tracker and the effector axis while the surgical device is movably coupled in and moving longitudinally along the axial channel; and
a second circuit for displaying the orientation of the effector axis of the surgical device on a display unit.
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Abstract
An adapter can be easily used to assist a surgical navigation system to determine the effector axis or the effector plane of a surgical device. The adapter has a body with a geometrical feature, the geometrical feature has a known relation with a navigation tracker device that can be attached to the adapter. When the adapter is held against a surgical device in a non-fixed manner, the effector axis or the effector plane of the device can be tracked by the surgical navigation system. The method includes a calibration method to determine the known relation between the effector axis or the effector plane and the location of the navigation tracker.
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Citations
30 Claims
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1. A system for orienting a surgical device, comprising:
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a surgical navigation system having a display unit; a navigation tracker having a body including a geometrical feature defining an unobstructed axial channel extending along the body between opposite open ends and capable of being movably coupled to a surgical device having an effector axis, the navigation tracker capable of being tracked by the navigation system, wherein there is a known relation between the navigation tracker and the effector axis when the surgical device is disposed in and moving longitudinally along the axial channel; a first circuit adapted to calculate an orientation of the effector axis of the surgical device from the known relation between the navigation tracker and the effector axis while the surgical device is movably coupled in and moving longitudinally along the axial channel; and a second circuit for displaying the orientation of the effector axis of the surgical device on a display unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for orienting a surgical device, the method comprising the steps of:
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coupling by a user'"'"'s hand a navigation tracker to a surgical device that has an effector axis in a movable manner using a geometrical feature associated with the navigation tracker, wherein the navigation tracker is capable of communicating with a navigation system, and wherein there is a known relation between the navigation tracker and the effector axis; calculating orientation data for the effector axis of the surgical device from the known relation between the navigation tracker and the effector axis, wherein the calculating step is performed while the surgical device is moving longitudinally along the geometrical feature and movably coupled to the navigation tracker by the user'"'"'s hand; and displaying the orientation data for the effector axis of the surgical device on a display unit of the navigation system so that when the surgical device is used with the navigation system, the orientation of the effector axis of the surgical device can be tracked by the navigation system. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification