Localizing and orienting probe for view devices
First Claim
1. An apparatus for use with a surgical microscope, the apparatus comprising:
- a target for placement on an object of interest in known relationship with a focal axis of the surgical microscope, the target including means, when viewed through the microscope, for providing a visual indication when the visual indication providing means is in alignment with the focal axis of the microscope; and
means for communicating signals indicative of the location of the target.
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0 Petitions
Accused Products
Abstract
A microscope calibrator probe includes a handle, a tool head connected to the handle, a viewable target connected to an end of the tool head opposite the handle, and three or more position signaling devices disposed on the handle for tracking the probe in an image guided surgery system. The tool head includes a bend of approximately 90 degrees to provide easy placement of the viewable target on an object being viewed below a microscope. Other angles for the bend are also acceptable. A precise location of the object being viewed is determined by sensing a location the three or more position signaling devices disposed on the handle with respect to an operating room reference frame and knowing an offset between the position signaling devices and a bottom surface of the viewable target in contact with the object. Additionally, the viewable target includes a viewable aperture for calibrating a line of sight of the microscope and a means for indicating a rotational sense of the viewable target.
210 Citations
30 Claims
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1. An apparatus for use with a surgical microscope, the apparatus comprising:
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a target for placement on an object of interest in known relationship with a focal axis of the surgical microscope, the target including means, when viewed through the microscope, for providing a visual indication when the visual indication providing means is in alignment with the focal axis of the microscope; and means for communicating signals indicative of the location of the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for determining an attribute of a microscope, the system comprising:
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a tool including; a target for placement on an object of interest in known relationship with a focal axis of the microscope, the target including a material free region adapted to provide a visual indication when viewed through the microscope when the target is in said known relationship to said focal axis of the surgical microscope; means for supporting the target; and a plurality of position signaling devices having a known relationship to the target; means for tracking the plurality of position signaling devices; and means for processing information tracked by the means for tracking. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method of determining an attribute of a microscope comprising the steps of:
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focusing the microscope on an object in a field of view of the microscope; positioning a target that includes visual indicating means for indicating when the indicating means is aligned with the focal axis of the microscope; observing the visual indicating means through the microscope; aligning the visual indicating means with the focal axis of the microscope; and sensing the position of the target in relation to the microscope. - View Dependent Claims (27, 28)
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29. A method of calibrating a microscope in an image guided surgery system, comprising the steps of:
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focusing the microscope on an object of interest; positioning a target having means for indicating a rotational sense of the target in contact with an object of interest viewed by the microscope such that the means for indicating the rotational sense of the target is aligned with a desired rotational sense of the microscope; aligning the view of the microscope with the means for indicating the rotational sense of the target; and using the image guided surgery system to determine a position of the target and calibrate the microscope. - View Dependent Claims (30)
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Specification