Customized patient-specific surgical instrument systems and methods
AssigneeDePuy Synthes Products, Inc.
InventorDaniel D. Fritzinger
Life of this patent
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Abstract
An orthopaedic surgical instrument comprising a metallic customized patient-specific surgical instrument is disclosed. The metallic customized patient-specific surgical instrument includes a base plate sized to be positioned on a resected surface of a distal end of a patient's femur, an anterior resection guide body attached to, and extending from, the distal surface of the base plate to a free distal end, a posterior resection guide body attached to, and extending from, the distal surface to a free distal end, and a pair of chamfer resection guide bodies attached to, and extending from, the distal surface.
Claims20
An orthopaedic surgical system comprising:
- a first customized patient-specific surgical instrument, comprising:
- a first base plate sized to be positioned on a patient's femur, the base plate having (i) a first bone-facing surface including a customized patient-specific negative contour configured to receive a corresponding positive contour of the patient's femur and (ii) a first outer surface positioned opposite the first bone-facing surface, and
- a first guide body attached to, and extending from, the first outer surface to a first free distal end, the first guide body including a first cutting guide slot sized to receive a cutting saw blade to form a resected surface on the patient's femur, and
- a second customized patient-specific surgical instrument, comprising:
- a second base plate sized to be positioned on the resected surface of the patient's femur, the second base plate having (i) a second bone-facing surface configured to contact the resected surface of the patient's femur, (ii) a second outer surface positioned opposite the second bone-facing surface, and (iii) a customized patient-specific outer edge extending between the second bone-facing surface and the second outer surface, wherein the customized patient-specific outer edge is shaped to match an outer edge of the resected surface of the patient's femur, and
- a second guide body attached to, and extending from, the second outer surface to a second free distal end, the second guide body including a second cutting guide slot sized to receive the cutting saw blade.
A customized patient-specific surgical instrument, comprising:
- a base plate sized to be positioned on a resected surface of a patient's femur, the base plate having (i) a bone-facing surface configured to contact the resected surface of the patient's femur, (ii) an outer surface positioned opposite the bone-facing surface, and (iii) a customized patient-specific outer edge extending between the bone-facing surface and the outer surface, wherein the customized patient-specific outer edge is shaped to match an outer edge of the resected surface of the patient's femur, and
- a guide body attached to, and extending from, the outer surface to a free distal end, the guide body including a cutting guide slot sized to receive a cutting saw blade.
A method of resecting a patient's femur, comprising:
- resecting a patient's bone to form a first resected surface on the patient's bone,
- positioning a customized patient-specific surgical instrument in contact with the first resected surface of the patient's bone, and
- aligning an outer perimeter edge of the first resected surface with a customized, patient-specific outer edge of a bone-facing surface of the customized patient-specific surgical instrument.
Dependencies are inferred from the claim text.