System and method for manufacturing arthroplasty jigs
AssigneeOtisMed Corporation
InventorsIlwhan Park, Stephen M. Howell
Life of this patent
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Abstract
Disclosed herein is a method of computer generating a three-dimensional surface model of an arthroplasty target region of a bone forming a joint. The method may include: generating two-dimensional images of at least a portion of the bone; generating an open-loop contour line along the arthroplasty target region in at least some of the two-dimensional images; and generating the three-dimensional model of the arthroplasty target region from the open-loop contour lines.
Claims60
A method of manufacturing an arthroplasty jig, the method comprising:
- generating two-dimensional images of at least a portion of a bone forming a joint;
- generating a first three-dimensional computer model of the at least a portion of the bone from the two-dimensional images;
- generating a second three-dimensional computer model of the at least a portion of the bone from the two-dimensional images;
- causing the first and second three-dimensional computer models to have in common a reference position, wherein the reference position includes at least one of a location and an orientation relative to an origin;
- generating a first type of data with the first three-dimensional computer model;
- generating a second type of data with the second three-dimensional computer model;
- employing the reference position to integrate the first and second types of data into an integrated jig data;
- and
- using the integrated jig data at a manufacturing machine to manufacture the arthroplasty jig.
A method of manufacturing an arthroplasty jig, the method comprising:
- generating two-dimensional images of at least a portion of a bone forming a joint;
- extending an open-loop contour line along an arthroplasty target region in at least some of the two-dimensional images;
- generating a three-dimensional computer model of the arthroplasty target region from the open-loop contour lines;
- generating from the three-dimensional computer model surface contour data pertaining to the arthroplasty target area;
- and
- using the surface contour data at a manufacturing machine to manufacture the arthroplasty jig.
A method of computer generating a three-dimensional surface model of an arthroplasty target region of a bone forming a joint, the method comprising:
- generating two-dimensional images of at least a portion of the bone;
- generating an open-loop contour line along the arthroplasty target region in at least some of the two-dimensional images;
- and
- generating the three-dimensional model of the arthroplasty target region from the open-loop contour lines.
A method of manufacturing an arthroplasty jig, the method comprising:
- determining from an image at least one dimension associated with a portion of a bone;
- comparing the at least one dimension to dimensions of at least two candidate jig blank sizes;
- selecting the smallest of the jig blank sizes that is sufficiently large to accommodate the at least one dimension;
- providing a jig blank of the selected size to a manufacturing machine;
- and
- manufacturing the arthroplasty jig from the jig blank.
A method of generating a three-dimensional arthroplasty jig computer model, the method comprising:
- comparing a dimension of at least a portion of a bone of a joint to candidate jig blank sizes;
- and selecting from the candidate jig blank sizes a smallest jig blank size able to accommodate the dimensions of the at least a portion of the bone.
A method of generating a three-dimensional arthroplasty jig computer model, the method comprising:
- forming an interior three-dimensional surface model representing an arthroplasty target region of at least a portion of a bone;
- forming an exterior three-dimensional surface model representing an exterior surface of a jig blank;
- and combining the interior surface model and exterior surface model to respectively form the interior surface and exterior surface of the three-dimensional arthroplasty jig computer model.
A method of generating a production file associated with the manufacture of arthroplasty jigs, the method comprising:
- generating first data associated a surface contour of an arthroplasty target region of a joint bone;
- generating second data associated with at least one of a saw cut and a drill hole to be administered to the arthroplasty target region during an arthroplasty procedure;
- and
- integrating first and second data,
- wherein a positional relationship of first data relative to an origin and a positional relationship of second data relative to the origin are coordinated with each other to be generally identical during the respective generations of first and second data.
Dependencies are inferred from the claim text.