PATIENT-SPECIFIC COMPUTED TOMOGRAPHY GUIDES
First Claim
1. An orthopedic device for joint arthroplasty comprising:
- a patient-specific alignment guide constructed and configured for a specific patient from medical scans that show a bone surface of a bone of the patient without any overlying soft tissue, wherein the patient-specific alignment guide includes;
a patient-specific inner surface configured to be offset from and mimic the bone surface and form a clearance for soft tissue overlying the bone surface; and
a plurality of patient-specific contact areas configured to mate and register directly on the bone surface without intervening soft tissue for direct bone registration, and wherein the plurality of patient-specific contact areas includes non-contiguous surface contact areas.
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Accused Products
Abstract
An orthopedic device for joint arthroplasty includes a patient-specific alignment guide constructed and configured for a specific patient from medical scans that show a bone surface of a bone of the patient without any overlying soft tissue. The patient-specific alignment guide includes a patient-specific inner surface configured to be offset from and mimic the bone surface and form a clearance for soft tissue overlying the bone surface. The alignment guide also includes a plurality of patient-specific contact areas configured to mate and register directly on the bone surface without intervening soft tissue for direct bone registration. The plurality of patient-specific contact areas includes non-contiguous surface contact areas.
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Citations
21 Claims
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1. An orthopedic device for joint arthroplasty comprising:
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a patient-specific alignment guide constructed and configured for a specific patient from medical scans that show a bone surface of a bone of the patient without any overlying soft tissue, wherein the patient-specific alignment guide includes; a patient-specific inner surface configured to be offset from and mimic the bone surface and form a clearance for soft tissue overlying the bone surface; and a plurality of patient-specific contact areas configured to mate and register directly on the bone surface without intervening soft tissue for direct bone registration, and wherein the plurality of patient-specific contact areas includes non-contiguous surface contact areas. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An orthopedic device for joint arthroplasty comprising:
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a patient-specific alignment guide constructed and configured for a specific patient from medical scans that show a bone surface of a bone of the patient without any overlying soft tissue, wherein the patient-specific alignment guide includes; a patient-specific inner surface configured to be offset from the bone surface and form a clearance for soft tissue overlying the bone surface; a plurality of patient-specific contact areas configured to mate and register directly on the bone surface without intervening soft tissue for direct bone registration, and wherein the plurality of patient-specific contact areas includes non-contiguous surface contact areas; a first pair of patient-specific guiding formations having corresponding bores for guiding a tool therethrough; and a second pair of patient-specific guiding formations having corresponding bores for guiding a tool therethrough. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of manufacturing a patient-specific alignment guide comprising:
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forming an inner surface of a patient-specific alignment guide to conform and mimic a bone surface of a patient'"'"'s bone; offsetting the inner surface to avoid articular cartilage and other soft tissue; and forming on the alignment guide a plurality of patient-specific contact areas for direct bone registration.
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Specification