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US 12,636,158 B1Granted
Patient-specific vertebral implants with positioning features
AssigneeCarlsmed, Inc.
InventorsNiall Patrick Casey, Gregory Mundis
Life of this patent
Estimating the term…
Abstract
The present technology provides patient-specific vertebral implants. The implants can include a cage having a geometry contoured to mate with an inferior surface of a superior vertebra and a superior surface of an inferior vertebra at a first target position. The implants can also include a plate having a geometry contoured to mate with an identified anatomical structure at a second target position. The cage and plate can be coupled in a predetermined three-dimensional orientation that simultaneously permits the cage to occupy the first target position and the plate to occupy the second target position when the implant is implanted.
Claims20
A computer-implemented method for designing a patient-specific lumbar implant assembly for a patient, the method comprising:
- receiving, at a computer system, image data of a lumbar region of a spine of the patient;
- generating, using the computer system, a virtual model of the lumbar region based at least in part on the image data;
- manipulating, using the computer system, a spatial relationship between a first vertebra and a second vertebra within the virtual model of the lumbar region to reflect a planned surgical correction to the lumbar region;
- measuring from the virtual model, using the computer system, a spinal metric of the lumbar region with the planned surgical correction, wherein the spinal metric includes one or more of a lumbar lordosis, a pelvic incidence, or a Cobb angle;
- and
- in response to the measured spinal metric complying with a predetermined criteria, designing, using the computer system, the patient-specific lumbar implant assembly to achieve the planned surgical correction when implanted in the lumbar region of the patient, wherein designing the patient-specific lumbar implant assembly includes—
- designing a patient-specific cage sized and shaped to be positioned at a first target position in an intervertebral space between the first vertebra and the second vertebra, the patient-specific cage having a first patient-specific topography designed to mate with contouring of the first vertebra and the second vertebra when seated at the first target position, and
- designing a patient-specific plate sized and shaped to be positioned at a second target position at which a first portion of the patient-specific plate engages an anterior or lateral surface of the first vertebra or the second vertebra, and a second portion of the patient-specific plate extends at least partially into the intervertebral space between the first vertebra and the second vertebra to engage the patient-specific cage, wherein the first portion has a second patient-specific topography designed to mate with contouring of the anterior or lateral surface of the first vertebra or the second vertebra,
- wherein the patient-specific implant assembly is configured such that placing the patient-specific plate at the second target position causes the second portion of the patient-specific plate to direct the patient-specific cage into the first target position.
6 more elements
A computer-implemented method for designing a patient-specific implant assembly for a patient, the method comprising:
- receiving, at a computer system, image data of a spinal region of a spine of the patient;
- generating, using the computer system, a virtual model of the spinal region based at least in part on the image data;
- manipulating, using the computer system, a spatial relationship between a first vertebra and a second vertebra within the virtual model of the spinal region to reflect a planned surgical correction to the spinal region;
- measuring from the virtual model, using the computer system, a spinal metric of the spinal region with the planned surgical correction;
- and
- in response to the measured spinal metric complying with a predetermined criteria, designing, using the computer system, the patient-specific implant assembly to achieve the planned surgical correction when implanted in the spinal region of the patient, wherein designing the patient-specific implant assembly includes—
- designing a patient-specific cage sized and shaped to be positioned at a first target position in an intervertebral space between the first vertebra and the second vertebra, the patient-specific cage having a first patient-specific topography designed to mate with contouring of the first vertebra and the second vertebra when seated at the first target position, and
- designing a patient-specific plate sized and shaped to be positioned at a second target position at which a first portion of the patient-specific plate engages an anterior or lateral surface of the first vertebra or the second vertebra, and a second portion of the patient-specific plate extends at least partially into the intervertebral space between the first vertebra and the second vertebra to engage the patient-specific cage, wherein the first portion has a second patient-specific topography designed to mate with contouring of the anterior or lateral surface of the first vertebra or the second vertebra,
- wherein the patient-specific implant assembly is configured such that placing the patient-specific plate at the second target position causes the second portion of the patient-specific plate to direct the patient-specific cage into the first target position.
6 more elements
A computer-implemented method for designing a patient-specific implant assembly for a patient, the method comprising:
- receiving, at a computer system, image data of a spine of the patient;
- generating, using the computer system, a virtual model of the spine based at least in part on the image data;
- manipulating, using the computer system, a spatial relationship between a first vertebra and a second vertebra within the virtual model of the spine to reflect a planned surgical correction to the spine;
- and
- designing, using the computer system, the patient-specific implant assembly to achieve the planned surgical correction when implanted in the spine of the patient, wherein designing the patient-specific implant assembly includes—
- designing a patient-specific cage sized and shaped to be positioned at a first target position in an intervertebral space between the first vertebra and the second vertebra, the patient-specific cage having a first patient-specific topography designed to mate with contouring of the first vertebra and the second vertebra when seated at the first target position, and
- designing a patient-specific plate sized and shaped to be positioned at a second target position at which a first portion of the patient-specific plate engages an anterior or lateral surface of the first vertebra or the second vertebra, and a second portion of the patient-specific plate extends at least partially into the intervertebral space between the first vertebra and the second vertebra to engage the patient-specific cage, wherein the first portion has a second patient-specific topography designed to mate with contouring of the anterior or lateral surface of the first vertebra or the second vertebra,
- wherein the patient-specific implant assembly is configured such that placing the patient-specific plate at the second target position causes the second portion of the patient-specific plate to direct the patient-specific cage into the first target position.
5 more elements
Dependencies are inferred from the claim text.