Patient-specific numerically controlled instrument
First Claim
1. A method for preparing a bone of a joint of a patient comprising:
- mounting a patient specific reference guide on a bone of a joint of a patient, the patient specific reference guide having a three-dimensional inner surface preoperatively configured to mate and closely nest to a corresponding surface of the bone only in one position, wherein mounting the patient specific reference guide on a bone of a joint of a patient includes mounting the reference guide on a femoral head surface of the patient, and wherein the reference guide is configured for mating with the femoral head surface of the patient;
coupling a housing of a numerically-controlled instrument to a connecting portion coupled to an outer surface of the reference guide;
automatically registering the numerically controlled instrument to the bone by coupling the housing to the reference guide and without intraoperative computer-aided navigation;
coupling a cutting tool to the housing;
guiding the cutting tool along a patient-specific tool path using the numerically-controlled instrument while the housing is mounted to the reference guide, the patient-specific tool path determined preoperatively and stored in the numerically-controlled instrument; and
preparing a portion of the bone using the cutting tool.
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Accused Products
Abstract
A method for preparing a bone of a joint of a patient includes mounting a patient-specific reference guide on a bone of a joint of a patient. A connecting portion of the reference guide is coupled to a miniaturized numerically controlled instrument having a housing including a controller, a processor and a tool driver. The patient-specific reference guide has a three-dimensional inner surface preoperatively configured to mirror and mate with a corresponding surface of a bone of a joint of a patient in only one position. The patient-specific reference guide is configured to automatically register the numerically controlled instrument to the patient'"'"'s bone portion intraoperatively. The cutting tool is guided by the controlled with signals from the processor along a patient-specific tool path determined during the preoperative plan for preparing a portion of the bone.
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Citations
19 Claims
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1. A method for preparing a bone of a joint of a patient comprising:
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mounting a patient specific reference guide on a bone of a joint of a patient, the patient specific reference guide having a three-dimensional inner surface preoperatively configured to mate and closely nest to a corresponding surface of the bone only in one position, wherein mounting the patient specific reference guide on a bone of a joint of a patient includes mounting the reference guide on a femoral head surface of the patient, and wherein the reference guide is configured for mating with the femoral head surface of the patient; coupling a housing of a numerically-controlled instrument to a connecting portion coupled to an outer surface of the reference guide; automatically registering the numerically controlled instrument to the bone by coupling the housing to the reference guide and without intraoperative computer-aided navigation; coupling a cutting tool to the housing; guiding the cutting tool along a patient-specific tool path using the numerically-controlled instrument while the housing is mounted to the reference guide, the patient-specific tool path determined preoperatively and stored in the numerically-controlled instrument; and preparing a portion of the bone using the cutting tool. - View Dependent Claims (2)
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3. A method for preparing a bone of a joint of a patient comprising:
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mounting a patient specific reference guide on a bone of a joint of a patient, the patient specific reference guide having a three-dimensional inner surface preoperatively configured from preoperative scans of the bone of the joint to mirror and mate with a corresponding surface of the bone only in one position; coupling a guide connector of a housing of a miniaturized numerically-controlled instrument to a connecting portion coupled to an outer surface of the reference guide, the housing including the guide connector, a controller, a processor and a tool driver; automatically registering the numerically controlled instrument to the bone by coupling the housing to the reference guide; converting by the processor a patient-specific tool path to signals for the controller, the patient-specific tool path determined preoperatively and stored in the numerically-controlled instrument;
removably coupling a cutting tool to the housing;operating by the controller the tool driver from the signals; and guiding the cutting tool along the patient-specific tool path using the numerically-controlled instrument while the housing is mounted to the reference guide. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for preparing a bone of a joint of a patient comprising:
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mounting a patient specific reference guide on a bone of a joint of a patient, the patient specific reference guide having a three-dimensional inner surface preoperatively configured from preoperative scans of the bone of the joint to mirror and mate with a corresponding surface of the bone only in one position, the reference guide including a connecting portion; coupling a housing of a miniaturized numerically-controlled instrument to the connecting portion of the reference guide, the housing including a controller, a processor and a tool driver; automatically registering the numerically controlled instrument to the bone by coupling the housing to the inner surface of the reference guide; processing and converting a patient-specific tool path to signals for the controller, the patient-specific tool path determined preoperatively and stored in the numerically-controlled instrument; removably coupling a cutting tool to the housing; controlling the tool driver from the signals; and guiding the cutting tool along the patient-specific tool path using the numerically-controlled instrument while the housing is mounted to the reference guide. - View Dependent Claims (14, 15)
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16. A method for preparing a bone of a joint of a patient comprising:
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mounting a patient specific reference guide on a bone of a joint of a patient, the patient specific reference guide having a three-dimensional inner surface preoperatively configured to mate and closely nest to a corresponding surface of the bone only in one position, wherein mounting the patient specific reference guide on a bone of a joint of a patient includes mounting the reference guide on an acetabulum of the patient; coupling a housing of a numerically-controlled instrument to a connecting portion coupled to an outer surface of the reference guide; automatically registering the numerically controlled instrument to the bone by coupling the housing to the reference guide and without intraoperative computer-aided navigation; coupling a cutting tool to the housing; guiding the cutting tool along a patient-specific tool path using the numerically-controlled instrument while the housing is mounted to the reference guide, the patient-specific tool path determined preoperatively and stored in the numerically-controlled instrument; and preparing a portion of the bone using the cutting tool. - View Dependent Claims (17, 18, 19)
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Specification