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US 2013/0297031 A1Published application
Patient specific instruments and related methods for joint replacement
AssigneeConforMIS, Inc.
InventorMahmoud A. Hafez
Life of this patent
Estimating the term…
Abstract
Devices, tools and techniques for the design, selection and/or modification of patient-specific implants, instruments and related methods are disclosed. Various embodiments include the use of double joint lines, particularly for treating severe deformities during joint repair and/or replacement surgeries.
Claims20
A method of making an implant component for a knee joint of a patient, the method comprising:
- providing patient-specific information associated with the joint;
- deriving information regarding a first joint line of the joint based, at least in part, on the patient-specific information;
- determining a planned level of resection for a first portion of a bone of the joint based, at least in part, on the patient-specific information;
- and
- deriving a dimension of the implant component based, at least in part, on the derived information regarding the first joint line and the planned level of resection for the first portion of the bone.
2 more elements
An implant component for treating a patient's joint, comprising:
- a medial bone-facing surface, the medial bone-facing surface configured to engage a cut bone surface of a medial portion of a proximal tibia at a first level;
- lateral bone-facing surface, the lateral bone-facing surface configured to engage a cut bone surface of a lateral portion of the proximal tibia at a second level;
- and
- one or more joint-facing surfaces having a curvature based, at least in part, on patient-specific information,
- wherein the first level is offset from the second level.
2 more elements
A system for treating a joint of a patient, the system comprising:
- one or more patient-specific instruments;
- a medial tibial implant component, the medial tibial implant component including a bone-facing surface and a joint-facing surface, the joint-facing surface having a curvature based, at least in part, on patient-specific information;
- a lateral tibial implant component, the lateral tibial implant component including a bone-facing surface and a joint-facing surface, the joint-facing surface having a curvature based, at least in part, on patient-specific information;
- and
- a femoral implant component, the femoral implant component including a joint-facing surface having a curvature based, at least in part, on patient-specific information,
- wherein the bone-facing surface of the medial tibial implant component is configured to engage a cut bone surface that is at a level offset from the level of a cut bone surface to which the bone-facing surface of the lateral tibial implant component is configured to engage.
3 more elements
Dependencies are inferred from the claim text.