PATIENT-SPECIFIC-BONE-CUTTING GUIDANCE INSTRUMENTS AND METHODS
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Abstract
An orthopedic device for cutting or resurfacing an outer bone surface of a bone of a patient includes first and second guides. Each guide has a patient-specific surface preoperatively configured as a negative surface of a portion of the outer bone surface of the bone and a plurality of elongated slots. The elongated slots of the second guide are offset relative to the elongated slots of the first guide and configured for guiding a tool to resurface the outer bone surface.
7 Citations
43 Claims
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1-23. -23. (canceled)
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24. A patient-specific alignment guide system for cutting or resurfacing an outer bone surface of a bone of a patient, the alignment guide system comprising:
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a patient-specific alignment guide having an engagement surface mirroring the outer bone surface; a first guiding formation connected to the alignment guide on a non-engaging surface to direct a reference pin into the bone at a desired location; and a reference pin configured to extend through the first guiding formation. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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32. A cutting effector system for cutting or resurfacing an outer bone surface of a bone of a patient, the cutting effector system comprising:
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a vibratory cutting tool having a patient-specific cutting surface mirroring the outer bone surface; a guide member having a reference pin for insertion into the bone at a patient-specific location; and a guide connecting the vibratory cutting tool and the guide member; wherein the guide is translatable on the guide member to bring the patient-specific cutting surface into engagement with the outer bone surface that is mirrored by the patient-specific cutting surface. - View Dependent Claims (33, 34, 35, 36)
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37. A patient-specific cutting system for cutting or resurfacing an outer bone surface of a bone of a patient, the cutting system comprising:
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a patient-specific resurfacing guide comprising; a guide surface configured to mirror and mate with a corresponding portion of the outer bone surface; and a slot extending along the patient-specific resurfacing guide; and a resurfacing tool configured to ride in the slot to resurface the outer bone surface adjacent the guide surface. - View Dependent Claims (38, 39, 40, 41, 42, 43)
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Specification