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US 11,759,244 B2Granted
Implant and guide
AssigneeMaterialise N.V.
InventorsGuillaume Dubois, Patrick Goudot, Thomas Schouman
Life of this patent
Estimating the term…
Abstract
A method for configuring a surgical guide and an associated implant. The implant and surgical guide are for maxillofacial osteosynthesis. Three-dimensional models of the pre- and post-operative anatomy are used to define attachment points. These attachment points are used to determine a structure for the implant and surgical guide.
Claims20
A method for configuring a surgical guide and an associated implant for maxillofacial osteosynthesis, the method comprising:
- accessing data indicative of a pre-operative maxillofacial anatomy of a patient and generating a three-dimensional model of said anatomy using said data;
- generating a modified three-dimensional model indicative of a desired post-operative orientation of first and second bone portions based on an arrangement of the second bone portion in relation to the first bone portion, said arrangement comprising at least one of a translation and a rotation of the second bone portion in relation to the first bone portion, the first and second bone portions having been defined by a simulated osteotomy on the three-dimensional model of the pre-operative maxillofacial anatomy, said simulated osteotomy defining at least one cut that results in the second bone portion being separated from the first bone portion, said osteotomy resulting in an absence of any bone coupling the first and second bone portions together;
- determining a monolithic three-dimensional structure for the implant that couples first and second pluralities of attachment points in the modified three-dimensional model, wherein on the modified three-dimensional model the first plurality of attachment points have been defined on the first bone portion and the second plurality of attachment points have been defined on the second bone portion, and wherein the monolithic three-dimensional structure for the implant has a shape that varies in each of three dimensions to arrange the second bone portion relative to the first bone portion in accordance with the desired post-operative orientation, each of at least one of the attachment points corresponding to an aperture for a bone fixation device in said structure for the implant;
- mapping the first and second plurality of attachment points to corresponding locations on the three-dimensional model of the pre-operative maxillofacial anatomy;
- and
- determining a monolithic three-dimensional structure for the surgical guide that couples the corresponding locations in the three-dimensional model of the pre-operative maxillofacial anatomy, wherein each of at least one of the corresponding locations corresponds to a guide aperture in said structure for the surgical guide.
3 more elements
A method for configuring a surgical guide and an associated implant for maxillofacial osteosynthesis, the method comprising:
- accessing data indicative of a pre-operative maxillofacial anatomy of a patient and generating a three-dimensional model of said anatomy using said data;
- generating a modified three-dimensional model indicative of a desired post-operative orientation of first and second bone portions based on an arrangement of the second bone portion in relation to the first bone portion, said arrangement comprising at least one of a translation and a rotation of the second bone portion in relation to the first bone portion, the first and second bone portions having been defined by a simulated osteotomy on the three-dimensional model of the pre-operative maxillofacial anatomy, said simulated osteotomy defining at least one cut that results in the second bone portion being separated from the first bone portion, said osteotomy resulting in an absence of any bone coupling the first and second bone portions together;
- determining a monolithic three-dimensional structure for the implant that couples first and second pluralities of attachment points in the modified three-dimensional model, wherein on the modified three-dimensional model the first plurality of attachment points have been defined on the first bone portion and the second plurality of attachment points have been defined on the second bone portion, and wherein the monolithic three-dimensional structure for the implant has a shape that varies in each of three dimensions to arrange the second bone portion relative to the first bone portion in accordance with the desired post-operative orientation, each of at least one of the attachment points corresponding to an aperture for a bone fixation device in said structure for the implant;
- mapping the first and second plurality of attachment points to corresponding locations on the three-dimensional model of the pre-operative maxillofacial anatomy;
- determining a monolithic three-dimensional structure for the surgical guide that couples the corresponding locations in the three-dimensional model of the pre-operative maxillofacial anatomy, wherein each of at least one of the corresponding locations corresponds to a guide aperture in said structure for the surgical guide;
- and
- manufacturing the implant based on the determined monolithic three-dimensional structure for the implant.
4 more elements
A method for configuring a surgical guide and an associated implant for maxillofacial osteosynthesis, the method comprising:
- accessing data indicative of a pre-operative maxillofacial anatomy of a patient and generating a three-dimensional model of said anatomy using said data;
- generating a modified three-dimensional model indicative of a desired post-operative orientation of first and second bone portions based on an arrangement of the second bone portion in relation to the first bone portion, said arrangement comprising at least one of a translation and a rotation of the second bone portion in relation to the first bone portion, the first and second bone portions having been defined by a simulated osteotomy on the three-dimensional model of the pre-operative maxillofacial anatomy, said simulated osteotomy defining at least one cut that results in the second bone portion being separated from the first bone portion, said osteotomy resulting in an absence of any bone coupling the first and second bone portions together;
- determining a monolithic three-dimensional structure for the implant that couples first and second pluralities of attachment points in the modified three-dimensional model, wherein on the modified three-dimensional model the first plurality of attachment points have been defined on the first bone portion and the second plurality of attachment points have been defined on the second bone portion, and wherein the monolithic three-dimensional structure for the implant has a shape that varies in each of three dimensions to arrange the second bone portion relative to the first bone portion in accordance with the desired post-operative orientation, each of at least one of the attachment points corresponding to an aperture for a bone fixation device in said structure for the implant;
- mapping the first and second plurality of attachment points to corresponding locations on the three-dimensional model of the pre-operative maxillofacial anatomy;
- determining a monolithic three-dimensional structure for the surgical guide that couples the corresponding locations in the three-dimensional model of the pre-operative maxillofacial anatomy, wherein each of at least one of the corresponding locations corresponds to a guide aperture in said structure for the surgical guide;
- and
- manufacturing the surgical guide based on the determined monolithic three-dimensional structure for the surgical guide.
4 more elements
Dependencies are inferred from the claim text.