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US 11,931,049 B2Granted
Apparatus and method for fabricating a customized patient-specific orthopaedic instrument
AssigneeDePuy Synthes Products, Inc.
InventorsBryan Rose, Jeffrey R. Roose, Luke J. Aram, Dimitri Sokolov
Life of this patent
Estimating the term…
Abstract
A number of orthopaedic surgical instruments are disclosed. A method, apparatus, and system for fabricating such instruments are also disclosed.
Claims20
A method comprising:
- generating a digital bone model using medical images that show a distal portion of a patient's femur, wherein the medical images consist of a plurality of X-ray images, the plurality of X-ray images including (i) an anterior/posterior X-ray image showing a coronal profile of the distal portion of the patient's femur, and (ii) a medial/lateral X-ray image showing a sagittal profile of the distal portion of the patient's femur, and
- generating a digital plan for a customized patient-specific orthopaedic surgical instrument using the digital bone model, wherein the digital plan is configured to be used by a fabrication machine to fabricate the customized patient-specific orthopaedic surgical instrument, the digital plan defining a contoured surface configured to (i) match at least an anterior portion of the sagittal profile shown in the medial/lateral X-ray image and a distal portion of the sagittal profile shown in the medial/lateral X-ray image and (ii) not contact portions of the femur that are not visible in the medical images.
A method comprising:
- generating a digital bone model using medical images that show a proximal portion of a patient's tibia, wherein the medical images consist of a plurality of X-ray images, the plurality of X-ray images including (i) an anterior/posterior X-ray image showing a coronal profile of the proximal portion of the patient's tibia, and (ii) a medial/lateral X-ray image showing a sagittal profile of the proximal portion of the patient's tibia, and
- generating a digital plan for a customized patient-specific orthopaedic surgical instrument using the digital bone model, wherein the digital plan is configured to be used by a fabrication machine to fabricate the customized patient-specific orthopaedic surgical instrument, the digital plan defining a contoured surface configured to (i) match at least an anterior portion of the sagittal profile shown in the medial/lateral X-ray image and a proximal portion of the sagittal profile shown in the medial/lateral X-ray image and (ii) not contact portions of the tibia that are not visible in the medical images.
A method comprising:
- obtaining an anterior/posterior X-ray image showing a coronal profile of a portion of a patient's knee bone,
- obtaining a medial/lateral X-ray image showing a sagittal profile of the portion of the patient's knee bone, and
- positioning a customized patient-specific orthopaedic surgical instrument on the patient's knee bone with a patient-specific contoured surface of the customized patient-specific orthopaedic surgical instrument overlaying at least a portion of the sagittal profile of the patient's knee bone that was shown in the medial/lateral X-ray image, wherein the customized patient-specific orthopaedic surgical instrument is made using a digital bone model generated from the anterior/posterior X-ray image and the medial/lateral X-ray image of the patient's knee bone.
Dependencies are inferred from the claim text.