Vertebra Zone Mapping for Faster Spinal Implant Planning
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Solution Overview
Problem
Existing surgical navigation systems require manual editing of alert zones and implant poses for each vertebra during spinal surgery, which is cumbersome and time-consuming, especially when multiple vertebrae are involved.
Innovation Solution
A system and method for automatically mapping and adjusting zones and implant poses using a three-dimensional anatomic model, allowing for input from medical professionals to refine these positions based on historical preferences and patient-specific data, thereby optimizing the planning process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual editing of alert zones and implant poses is performed for each vertebra, then customization and precision can be adjusted, but the time required and complexity increase significantly
Solution Approach 1:
The system performs preliminary actions by automatically generating alert zones and implant poses for multiple vertebrae before the surgical procedure. The computer automatically maps the three-dimensional anatomic model to patient imaging data and generates surgical plans in advance, so that when the surgeon needs to operate, the planning is already complete or substantially complete, eliminating the need for time-consuming manual editing during the procedure.
Solution Approach 2:
The system creates a digital copy of the patient's anatomy through three-dimensional anatomic models that can be automatically manipulated and edited. These virtual models serve as templates that can be replicated across multiple vertebrae, allowing the system to generate consistent alert zones and implant poses for each vertebra by copying and adapting the same planning process rather than manually recreating each one.
2Productivity
If automated generation of alert zones is used, then productivity increases, but the ability to customize according to medical professional preferences decreases
Solution Approach 1:
The system provides dynamic adjustability where the automatically generated alert zones and implant poses can be easily modified by the medical professional. The interface allows real-time editing of zone parameters, implant positions, and orientations, enabling the system to transition from automated generation to customized adjustment as needed. This dynamic capability maintains both productivity through automation and ease of operation through flexibility.
Solution Approach 2:
The system incorporates feedback mechanisms where the medical professional can review and correct automatically generated plans, and these corrections can be fed back into the system to improve future automated generations. The interface provides visual feedback showing the relationship between the three-dimensional model, alert zones, and patient anatomy, allowing professionals to make intuitive adjustments while maintaining the benefits of automation.
3Adaptability or versatility
If manual editing of alert zones for multiple vertebrae is performed, then customization is possible, but device complexity and operational difficulty increase
Solution Approach 1:
The system uses a universal three-dimensional anatomic model that can represent multiple vertebrae and anatomical structures within a single integrated framework. This universal model serves multiple functions: it provides the basis for automated alert zone generation, serves as a template for implant planning, and can be adapted to different surgical scenarios. The same underlying technology handles various vertebrae and surgical procedures, reducing overall system complexity while maintaining adaptability.
Data Source
AI summary
Systems and methods for mapping zones for monitoring a position of a surgical instrument during a procedure from a model vertebra to a 3D image of a patient vertebra. A model vertebra in a first coordinate system is received, the model vertebra including a plurality of model features localized in the first coordinate system and a pose of a model zone in the first coordinate system. A 3D image of a first and second vertebra of a patient in a second coordinate system is also received. The model vertebra including the model zone is mapped to the first vertebra such that a zone for the first vertebra is generated. Input indicating a revised pose of the zone for the first vertebra is received, and a zone for the second vertebra is generated based on the revised pose of the zone for the first vertebra.