System for modeling patient spinal changes

Inventors

Casey, Niall Patrick • Nicolau, Rodrigo Junqueira

Assignees

Carlsmed Inc

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Publication Number

US-12232885-B2

Patent

Publication Date

2025-02-25

Expiration Date


Abstract

Systems and methods for modeling anatomical changes in a patient after installation of a patient-specific implant are disclosed. The system can model changes to a thoracic spine based on changes to the lumbar spine in a patient. The system can calculate and display reciprocal changes to nearby anatomy due to correction of index anatomy. For example, the system models the anatomical changes to the thoracic and cervical spines based on corrections to the lumbar spine.

Core Innovation

The invention provides a computer-implemented method and system for designing a patient-specific lumbar implant based on modeled anatomical changes. Patient data include image data of a spinal region of a patient, including at least portions of a lumbar spine, a thoracic spine, and a cervical spine, and a virtual three-dimensional model of the spinal region is generated based on the image data.

The method virtually simulates changes along a spine of the patient caused by implantation of a patient-specific lumbar implant. One or more lumbar anatomical changes are determined to the lumbar spine to provide a corrective adjustment based on at least one patient-specific lumbar implant that is virtually implanted along the lumbar spine in the virtual three-dimensional model, and one or more anatomical changes to at least one of the thoracic spine or the cervical spine are determined as caused by the one or more lumbar anatomical changes and are determined to be acceptable.

The virtual three-dimensional model is displayed showing the one or more lumbar anatomical changes and the one or more anatomical changes to at least one of the thoracic spine or the cervical spine. After the simulation and acceptability determination, the patient-specific lumbar implant is designed so that it is configured to provide the corrective adjustment when implanted in the patient.

Claims Coverage

Independent claim coverage is directed to a computer-implemented method, corresponding system implementations, and a non-transitory computer-readable medium. The core inventive structure includes virtual three-dimensional spinal modeling from lumbar, thoracic, and cervical image data, simulation of lumbar implantation-caused anatomical changes, determination of acceptable thoracic or cervical changes, display of the simulated changes, and design of a patient-specific lumbar implant configured to provide a corrective adjustment when implanted in the patient.

Virtual 3D spinal modeling from multi-region image data

Receiving patient data including image data of a spinal region including at least portions of a lumbar spine, a thoracic spine, and a cervical spine; generating a virtual three-dimensional model of the spinal region based on the image data, the virtual three-dimensional model including the at least portions of the lumbar spine, the thoracic spine, and the cervical spine.

Lumbar corrective adjustment determination

Virtually simulating changes along a spine caused by implantation by determining one or more lumbar anatomical changes to the lumbar spine to provide a corrective adjustment based on at least one patient-specific lumbar implant that is virtually implanted along the lumbar spine in the virtual three-dimensional model.

Acceptable thoracic/cervical anatomical changes caused by lumbar changes

Determining one or more anatomical changes to at least one of the thoracic spine or the cervical spine caused by the one or more lumbar anatomical changes; determining the one or more anatomical changes to at least one of the thoracic spine or the cervical spine to be acceptable.

Display of simulated anatomical changes and implant design

Displaying the virtual three-dimensional model showing the one or more lumbar anatomical changes and the one or more anatomical changes to at least one of the thoracic spine or the cervical spine; designing the patient-specific lumbar implant configured to provide the corrective adjustment when implanted in the patient.

Singular anatomical structure modeling of thoracic or cervical spine

Modeling, in the virtual three-dimensional model, the thoracic spine or the cervical spine as a singular anatomical structure; determining changes to the singular anatomical structure based on a position of the thoracic spine relative to the corrective adjustment to the lumbar spine.

Pain-data-based virtual model adjustment and pain reduction score

Receiving patient pain data; determining one or more adjustments to the virtual three-dimensional model of a spinal anatomy of the patient based at least partially on the received patient pain data; determining a pain reduction score based on the one or more adjustments; after determining the pain reduction score, designing the patient-specific lumbar implant configured to provide the corrective adjustment when implanted in the patient.

The claims are centered on virtual 3D spine modeling and simulation, determining lumbar anatomical changes as a corrective adjustment, deriving thoracic and/or cervical changes and evaluating them as acceptable, optionally modeling the thoracic or cervical spine as a singular anatomical structure, and optionally incorporating patient pain data before designing the patient-specific lumbar implant.

Stated Advantages

Not explicitly described in patent.

Documented Applications

Not explicitly described in patent.

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