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US 2026/0256591 A1Published application
Patient-specific vertebral implants with positioning features
AssigneeCarlsmed, Inc.
InventorsNiall Patrick CASEY, Gregory MUNDIS
Life of this patent
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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.
Claims23
A patient-specific implant system, comprising:
- an implant design program, the implant design program including a processor and a memory storing instructions that, when executed by the processor, cause the implant design program to perform operations comprising—
- receiving, at a computer system, image data of a spine of a patient;
- generating, using the computer system, a virtual model of the spine based at least in part on the image data;
- positioning, using the computer system, 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, a 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 toward the first target position and/or maintain the patient-specific cage at the first target position.
6 more elements
A patient-specific implant system, comprising:
- a patient-specific cage sized and shaped to be positioned at a first target position in an intervertebral space between a first vertebra and a 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
- 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 system 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 toward the first target position and/or maintain the patient-specific cage at the first target position.
1 more element
A patient-specific implant system, comprising:
- a patient-specific cage sized and shaped to be positioned at a first target position in an intervertebral space between a first vertebra and a second vertebra, the patient-specific cage having a patient-specific topography designed to mate with contouring of the first vertebra and the second vertebra when seated at the first target position;
- and
- an anterior positioning structure configured to engage an anterior or lateral surface of the first vertebra or the second vertebra, wherein the anterior positioning structure includes a posterior extension coupleable to the patient-specific cage,
- wherein the patient-specific implant system is configured such that placing the anterior positioning structure against the anterior or lateral surface of the first vertebra or the second vertebra positions at least a portion of the posterior extension in an intervertebral space between the first vertebra and the second vertebra to direct the patient-specific cage toward the first target position and/or maintain the patient-specific cage at the first target position.
1 more element
Dependencies are inferred from the claim text.