Patient-specific computed tomography guides
AssigneeBiomet Manufacturing, LLC
InventorsJoshua B. Catanzarite, Ryan J. Schoenefeld
Life of this patent
Estimating the term…
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.
Claims21
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.
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 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.
A method of manufacturing a patient-specific alignment guide comprising:
- 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.
Dependencies are inferred from the claim text.