System and method for image segmentation in generating computer models of a joint to undergo arthroplasty
First Claim
1. A method of generating design data associated with a custom arthroplasty guide, the method comprising:
- receiving patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area, the patient data captured using a medical imaging system;
generating a model of the portion of the patient bone from golden bone data that has been modified using the patient data, the golden bone data being associated with an exemplary bone other than the patient bone; and
generating arthroplasty guide design data from the model using a processor, the arthroplasty guide design data including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is configured to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner.
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Accused Products
Abstract
A custom arthroplasty guide and a method of manufacturing such a guide are disclosed herein. The method of manufacturing the custom arthroplasty guide includes: a) generating medical imaging slices of the portion of the patient bone; b) identifying landmarks on bone boundaries in the medical imaging slices; c) providing model data including image data associated with a bone other than the patient bone; d) adjusting the model data to match the landmarks; e) using the adjusted model data to generate a three dimensional computer model of the portion of the patient bone; f) using the three dimensional computer model to generate design data associated with the custom arthroplasty guide; and g) using the design data in manufacturing the custom arthroplasty guide.
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Citations
27 Claims
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1. A method of generating design data associated with a custom arthroplasty guide, the method comprising:
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receiving patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area, the patient data captured using a medical imaging system; generating a model of the portion of the patient bone from golden bone data that has been modified using the patient data, the golden bone data being associated with an exemplary bone other than the patient bone; and generating arthroplasty guide design data from the model using a processor, the arthroplasty guide design data including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is configured to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. One or more tangible computer-readable storage media storing computer-executable instructions for performing a computer process on a computing system, the computer process comprising:
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receiving patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area; modifying golden bone data associated with an exemplary bone other than the patient bone using the patient data; generating a model of the portion of the patient bone from the modified golden bone data; and generating arthroplasty guide design data using the model, the arthroplasty guide design data including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is configured to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner. - View Dependent Claims (15, 16)
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17. A method of manufacturing a custom arthroplasty guide, the method comprising:
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receiving arthroplasty guide design data generated based on a patient bone model, the patient bone model being generated using golden bone data that has been modified using patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area, the golden bone data being associated with an exemplary bone other than the patient bone; receiving a blank arthroplasty guide; and manufacturing the custom arthroplasty guide from the blank arthroplasty guide using the arthroplasty guide design data, the custom arthroplasty guide including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is adapted to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A system for manufacturing a custom arthroplasty guide, the system comprising:
a computer controlled machining system configured to manufacture the custom arthroplasty guide from a blank arthroplasty guide using arthroplasty guide design data generated based on a patient bone model, the patient bone model being generated using golden bone data that has been modified using patient data associated with a portion of a patient bone having a surface contour of an arthroplasty target area, the golden bone data being associated with an exemplary bone other than the patient bone, the custom arthroplasty guide including a mating region having a surface contour that is generally a negative of the surface contour of the arthroplasty target area such that the surface contour of the mating region is configured to matingly receive the surface contour of the arthroplasty target area in a generally matching or interdigitating manner. - View Dependent Claims (25, 26, 27)
Specification