Implant planning using areas representing cartilage
First Claim
1. A surgical planning computerized method comprising:
- determining, using a computer programmed to perform the steps of the method, a predetermined number of control points for generating a predetermined number of areas representing cartilage, wherein the predetermined number of control points are associated with specified locations on a first implant component of a multiple-component implant;
receiving measurements corresponding to a plurality of measured cartilage points, wherein each cartilage point is based on an associated control point from the predetermined number of control points;
generating a plurality of areas representing cartilage, based on and in proximity to each cartilage point, wherein each area representing cartilage is associated with a control point, and wherein each area representing cartilage is larger than and projects to an associated control point from the predetermined number of control points;
selecting a properly-sized multiple-component implant by computing a distance between two or more measured cartilage points and selecting a multiple-component implant having a distance between the two or more associated control points of the first implant that best matches the computed distance between the two or more cartilage points;
positioning a representation of a first implant component of the properly-sized multiple-component implant by aligning the control points for the first implant with the associated measured cartilage points;
automatically positioning a representation of a second implant component of the properly-sized multiple-component implant based on the position of the representation of the first implant component; and
generating at least one virtual cutting boundary based on the position of the representation of a first implant component and the position of the representation of the second implant component, wherein the virtual cutting boundary is configured to provide perceptible feedback to guide a surgical tool during preparation of a bone to receive the first implant component and the second implant component.
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Accused Products
Abstract
Described are computer-based methods and apparatuses, including computer program products, for implant planning using areas representing cartilage. A predetermined number of control points for generating a predetermined number of areas representing cartilage are determined, wherein the predetermined number of control points are based on an implant component. Measurements corresponding to a plurality of measured cartilage points are received, wherein each cartilage point is based on an associated control point from the predetermined number of control points. A plurality of areas representing cartilage are generated, wherein each area representing cartilage is larger than and projects to an associated control point from the plurality of control points. A representation of the implant component is positioned based on a representation of a bone, the representation of the bone comprising representations of the plurality of areas representing cartilage.
123 Citations
21 Claims
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1. A surgical planning computerized method comprising:
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determining, using a computer programmed to perform the steps of the method, a predetermined number of control points for generating a predetermined number of areas representing cartilage, wherein the predetermined number of control points are associated with specified locations on a first implant component of a multiple-component implant; receiving measurements corresponding to a plurality of measured cartilage points, wherein each cartilage point is based on an associated control point from the predetermined number of control points; generating a plurality of areas representing cartilage, based on and in proximity to each cartilage point, wherein each area representing cartilage is associated with a control point, and wherein each area representing cartilage is larger than and projects to an associated control point from the predetermined number of control points; selecting a properly-sized multiple-component implant by computing a distance between two or more measured cartilage points and selecting a multiple-component implant having a distance between the two or more associated control points of the first implant that best matches the computed distance between the two or more cartilage points; positioning a representation of a first implant component of the properly-sized multiple-component implant by aligning the control points for the first implant with the associated measured cartilage points; automatically positioning a representation of a second implant component of the properly-sized multiple-component implant based on the position of the representation of the first implant component; and generating at least one virtual cutting boundary based on the position of the representation of a first implant component and the position of the representation of the second implant component, wherein the virtual cutting boundary is configured to provide perceptible feedback to guide a surgical tool during preparation of a bone to receive the first implant component and the second implant component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A surgical planning system comprising:
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a computer programmed to; determine a predetermined number of control points for generating a predetermined number of areas representing cartilage, wherein the predetermined number of control points are associated with specified locations on a first implant component of a multiple-component implant; and a probe configured to measure a plurality of cartilage points, wherein each cartilage point is based on an associated control point from the predetermined number of control points; wherein the computer is further programmed to; generate a plurality of areas representing cartilage based on and in proximity to each cartilage point, wherein each area representing cartilage is associated with a control point, and wherein each area representing cartilage is larger than and projects to an associated control point from the predetermined of control points; and select a properly-sized multiple-component implant by computing a distance between two or more measured cartilage points and selecting a multiple-component implant having a distance between the two or more associated control points of the first implant that best matches the computed distance between the two or more cartilage points; position a representation of a first implant component of the properly-sized multiple-component implant by aligning the control points for the first implant with the associated measured cartilage points; automatically position a representation of a second implant component of the properly-sized multiple-component implant based on the position of the representation of the first implant component; and generate at least one virtual cutting boundary based on the position of the representation of a first implant component and the position of the representation of the second implant component, wherein the virtual cutting boundary is configured to provide perceptible feedback to guide a surgical tool during preparation of a bone to receive the first implant component and the second implant component. - View Dependent Claims (16, 17, 18, 19)
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20. A non-transitory tangible computer-readable storage medium having instructions embodied thereon that, when executed by a computing device, cause the computing device to perform operations comprising:
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determining a predetermined number of control points for generating a predetermined number of areas representing cartilage, wherein the predetermined number of control points are associated with specified locations on a first implant component of a multiple-component implant; receiving measurements corresponding to a plurality of measured cartilage points, wherein each cartilage point is based on an associated control point from the predetermined number of control points; generating a plurality of areas representing cartilage based on and in proximity to each cartilage point, wherein each area representing cartilage is associated with a control point, and wherein each area representing cartilage is larger than and projects to an associated control point from the predetermined number of control points; selecting a properly-sized multiple-component implant by computing a distance between two or more measured cartilage points and selecting a multiple-component implant having a distance between the two or more associated control points of the first implant that best matches the computed distance between the two or more cartilage points; positioning a representation of a first implant component of the properly-sized multiple-component implant by aligning the control points for the first implant with the associated measured cartilage points; automatically positioning a representation of a second implant component of the properly-sized multiple-component implant based on the position of the representation of the first implant component; and generating at least one virtual cutting boundary based on the position of the representation of a first implant component and the position of the representation of the second implant component, wherein the virtual cutting boundary is configured to provide perceptible feedback to guide a surgical tool during preparation of a bone to receive the first implant component and the second implant component.
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21. A system comprising:
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means for determining a predetermined number of control points for generating a predetermined number of areas representing cartilage, wherein the predetermined number of control points are associated with specified locations on a first implant component of a multiple-component implant; means for receiving measurements corresponding to a plurality of measured cartilage points, wherein each cartilage point is based on an associated control point from the predetermined number of control points; means for generating a plurality of areas representing cartilage based on and in proximity to each cartilage point, wherein each area representing cartilage is associated with a control point, and wherein each area representing cartilage is larger than and projects to an associated control point from the predetermined number of control points; means for selecting a properly-sized multiple-component implant by computing a distance between two or more measured cartilage points and selecting a multiple-component implant having a distance between the two or more associated control points of the first implant that best matches the computed distance between the two or more cartilage points; means for positioning a representation of a first implant component of the properly-sized multiple-component implant by aligning the control points for the first implant with the associated measured cartilage points; means for automatically positioning a representation of a second implant component of the properly-sized multiple-component implant based on the position of the representation of the first implant component; and means for generating at least one virtual cutting boundary based on the position of the representation of a first implant component and the position of the representation of the second implant component, wherein the virtual cutting boundary is configured to provide perceptible feedback to guide a surgical tool during preparation of a bone to receive the first implant component and the second implant component.
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Specification