System and method for interactive haptic positioning of a medical device
First Claim
1. A surgical method comprising:
- defining a virtual pathway to a target region of an anatomy of a patient on whom a surgical procedure is to be performed, defining the virtual pathway including defining a cutting surface that defines a surface of bone that is to be sculpted to receive an implant device;
storing the defined virtual pathway;
providing virtual pathway haptic feedback to a surgeon indicative of interaction between a surgical instrument attached to a haptic device and the stored virtual pathway;
providing protective haptic feedback to the surgeon indicative of interaction between the surgical instrument and a virtual boundary defining an anatomical structure of the patient to be avoided;
modifying said virtual pathway during the surgical procedure based at least in part on a current pose of the surgical instrument; and
dynamically enabling and disabling portions of the cutting surface to facilitate smoothly transitioning from one portion of the cutting surface to another portion of the cutting surface without leaving sharp edges.
2 Assignments
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Accused Products
Abstract
A combination of a haptic device and a computer-assisted medical system is used for interactive haptic positioning of a medical device coupled to the haptic device. A reconfigurable haptic object facilitates the positioning of the medical device and/or the haptic device. The haptic object may be modified in response to application of a force against the haptic object by a user of the haptic device pushing the haptic device against the haptic object. Preferably, the haptic object moves in the direction of the force applied by the haptic device. The medical device may be guided to a desired pose relative to a target area from its current position. The user may approach the target area from its current position and still be provided with haptic cues to enable the user to guide the medical device to the target area.
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Citations
35 Claims
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1. A surgical method comprising:
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defining a virtual pathway to a target region of an anatomy of a patient on whom a surgical procedure is to be performed, defining the virtual pathway including defining a cutting surface that defines a surface of bone that is to be sculpted to receive an implant device; storing the defined virtual pathway; providing virtual pathway haptic feedback to a surgeon indicative of interaction between a surgical instrument attached to a haptic device and the stored virtual pathway; providing protective haptic feedback to the surgeon indicative of interaction between the surgical instrument and a virtual boundary defining an anatomical structure of the patient to be avoided; modifying said virtual pathway during the surgical procedure based at least in part on a current pose of the surgical instrument; and dynamically enabling and disabling portions of the cutting surface to facilitate smoothly transitioning from one portion of the cutting surface to another portion of the cutting surface without leaving sharp edges. - 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 method for interactive haptic positioning of a haptic device coupled to a bone removal surgical instrument during an orthopedic surgical procedure on a bone of a patient, comprising:
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defining a virtual cutting surface which defines a bone surface to be sculpted in a bone of said patient to receive an implant device; displaying a diagnostic image of said bone with a depiction of the bone removal surgical instrument in a current pose; generating at least one haptic interaction wrench based at least in part on the current pose of said bone removal surgical instrument relative to the virtual cutting surface as the bone removal surgical instrument removes bone adjacent the bone surface to be sculpted; dynamically modifying said virtual cutting surface in response to said at least one haptic interaction wrench such that said virtual cutting surface is dynamically modified based on the current position of said bone removal surgical instrument relative to the virtual cutting surface to avoid abrupt transitions; and guiding a user with haptic feedback in moving said bone removal surgical instrument along the dynamically modified virtual cutting surface to remove bone to form the sculpted bone surface without sharp edges. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A system for haptic positioning of a haptic device during a medical procedure, comprising:
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a display which displays a diagnostic image of an anatomy of a patient containing a target region in which the medical procedure is to be performed; a tracking system which tracks a pose of the haptic device and a bone cutting surgical instrument relative to the target region, the tracking system being connected with the display such that the display displays a current pose of the bone cutting surgical instrument on the image of the anatomy; a processor programmed to; define one or more virtual pathways that define cutting planes indicating a surface of a bone to be left after portions of bone are removed by the bone cutting surgical instrument, control the display to display a visual representation of the virtual pathway on the displayed image of the anatomy, and a haptic feedback system which provides haptic feedback to the haptic device indicative of (1) an interaction between the bone cutting surgical instrument and a region of anatomy of the patient to be avoided and (2) an indication of a relationship of the bone cutting surgical instrument to the virtual pathway. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification