Patient-specific cutting block and method of manufacturing same
First Claim
1. A patient-specific cutting assembly, the assembly comprising:
- a model file including geometrical data of a bone of the patient, of an intramedullary canal of the bone, and a planned orientation of a cutting block;
a fixing rod adapted to be longitudinally inserted in and extending partially from the intramedullary canal; and
a patient-specific cutting block connectable to the fixing rod, the patient-specific cutting block including at least;
a structure having a patient specific geometry corresponding to the model file of the patient, the structure configured to be connected to a portion of the fixing rod projecting from the bone to reach a unique coupling orientation with the structure coupled to the bone when the structure is connected to a portion of the fixing rod; and
a cutting guide connected to the structure, the cutting guide being in the planned orientation when the structure is connected to the portion of the fixing rod projecting from the bone.
1 Assignment
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Accused Products
Abstract
A patient-specific cutting assembly comprises a model file including geometrical data of a bone of the patient, of an intramedullary canal of the bone, and a planned orientation of a cutting block. A fixing rod is adapted to be longitudinally inserted in and extending partially from the intramedullary canal. A patient-specific cutting block is connectable to the fixing rod. The patient-specific cutting block includes a structure having a patient specific geometry corresponding to the model file of the patient, the structure configured to be connected to a portion of the fixing rod projecting from the bone in a unique coupling orientation. A cutting guide is connected to the structure, the cutting guide being in the planned orientation when the structure is connected to the portion of the fixing rod projecting from the bone.
309 Citations
8 Claims
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1. A patient-specific cutting assembly, the assembly comprising:
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a model file including geometrical data of a bone of the patient, of an intramedullary canal of the bone, and a planned orientation of a cutting block; a fixing rod adapted to be longitudinally inserted in and extending partially from the intramedullary canal; and a patient-specific cutting block connectable to the fixing rod, the patient-specific cutting block including at least; a structure having a patient specific geometry corresponding to the model file of the patient, the structure configured to be connected to a portion of the fixing rod projecting from the bone to reach a unique coupling orientation with the structure coupled to the bone when the structure is connected to a portion of the fixing rod; and a cutting guide connected to the structure, the cutting guide being in the planned orientation when the structure is connected to the portion of the fixing rod projecting from the bone. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of cutting a bone of a patient in preparation of placement of an implant onto the bone, the method comprising, sequentially:
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inserting a fixing rod longitudinally in an intramedullary canal of the bone with a portion of the fixing rod extending outside the bone; connecting a patient-specific structure of a cutting block onto the portion of the fixing rod extending outside the bone and placing a cutting guide of the patient-specific cutting block in abutment with the bone, while the structure is coupled to the bone in a unique coupling orientation; and cutting the bone with the cutting guide. - View Dependent Claims (8)
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Specification