Preoperative planning and associated intraoperative registration for a surgical system
First Claim
1. A method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone, the method comprising:
- obtaining patient data associated with at least a portion of the patient bone, the patient data captured using a medical imaging machine;
generating a three-dimensional patient bone model from the patient data, the patient bone model comprising a polygonal surface mesh;
identifying a location of a posterior point on the polygonal surface mesh;
creating a three-dimensional shape centered at or near the location;
identifying a most posterior vertex of all vertices of the polygonal surface mesh that are enclosed by the three-dimensional shape;
using the most posterior vertex as a factor for determining a posterior resection depth; and
generating resection data using the posterior resection depth, the resection data configured to be utilized by a navigation system during the arthroplasty procedure.
1 Assignment
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Accused Products
Abstract
Aspects of the disclosure may involve a method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone. The method may include: obtaining patient data associated with at least a portion of the patient bone, the patient data captured using a medical imaging machine; generating a three-dimensional patient bone model from the patient data, the patient bone model including a polygonal surface mesh; identifying a location of a posterior point on the polygonal surface mesh; creating a three-dimensional shape centered at or near the location; identifying a most posterior vertex of all vertices of the polygonal surface mesh that may be enclosed by the three-dimensional shape; using the most posterior vertex as a factor for determining a posterior resection depth; and generating resection data using the posterior resection depth, the resection data configured to be utilized by a navigation system during the arthroplasty procedure.
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Citations
39 Claims
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1. A method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone, the method comprising:
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obtaining patient data associated with at least a portion of the patient bone, the patient data captured using a medical imaging machine; generating a three-dimensional patient bone model from the patient data, the patient bone model comprising a polygonal surface mesh; identifying a location of a posterior point on the polygonal surface mesh; creating a three-dimensional shape centered at or near the location; identifying a most posterior vertex of all vertices of the polygonal surface mesh that are enclosed by the three-dimensional shape; using the most posterior vertex as a factor for determining a posterior resection depth; and generating resection data using the posterior resection depth, the resection data configured to be utilized by a navigation system during the arthroplasty procedure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone, the method comprising:
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obtaining patient data associated with at least a portion of the patient bone, the patient data captured using a medical imaging machine; generating a three-dimensional patient bone model from the patient data, the patient bone model comprising a polygonal surface mesh; identifying a location of a distal point on the polygonal surface mesh; creating a three-dimensional shape centered at or near the location; identifying a most distal vertex of all vertices of the polygonal surface mesh that are enclosed by the three-dimensional shape; determining if the most distal vertex is too close to a boundary of the three-dimensional shape; using the most distal vertex as a basis for determining a distal resection depth if the most distal vertex is not too close to the boundary of the three-dimensional shape; and generating resection data using the distal resection depth, the resection data configured to be utilized by a navigation system during the arthroplasty procedure. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone, the method comprising:
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obtaining patient data associated with at least a portion of the patient bone, the patient data captured using a medical imaging machine; generating a three-dimensional patient bone model from the patient data, the patient bone model comprising a polygonal surface mesh; identifying a location of a distal point on the polygonal surface mesh; creating a first three-dimensional shape centered at or near the location; identifying a most distal vertex of all vertices of the polygonal surface mesh that are enclosed by the first three-dimensional shape; determining if the most distal vertex is located on an osteophyte; using the most distal vertex or an adjusted location of the most distal vertex as a basis for determining a distal resection depth based on whether or not the most distal vertex is located on the osteophyte; and generating resection data using the distal resection depth, the resection data configured to be utilized by a navigation system during the arthroplasty procedure. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method of generating resection plane data for use in planning an arthroplasty procedure on a patient bone, the method comprising:
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obtaining patient data associated with at least a portion of the patient bone; generating a three-dimensional patient bone model from the patient data, the patient bone model oriented in a three-dimensional coordinate system and comprising a polygonal surface mesh; identifying a particular direction in the three-dimensional coordinate system associated with a resection plane; identifying a location on the polygonal surface mesh; creating a surface at or near the location; identifying a particular vertex of all vertices of the polygonal surface mesh that extends furthest beyond the surface in the particular direction; using the particular vertex as a factor for determining a particular resection depth; and generating resection data using the particular resection depth, the particular resection data configured to be utilized by a navigation system during the arthroplasty procedure. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification