Active Implant Pose Tracking for Anatomical Model Registration
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Solution Overview
Problem
Existing medical procedures face challenges in accurately locating and relocalizing target tissue due to anatomical variations and movements, especially in organs like the lungs, which can lead to inefficiencies and complications during sequential treatments, as conventional markers like dye dissipate quickly and require precise anatomical registration.
Innovation Solution
The use of an active implant that provides positional information within an anatomical model, allowing for real-time navigation and updating of the model to account for anatomical changes, facilitating accurate and efficient localization of target tissue during follow-up procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional markers like dye are used for localization, then the procedure is simple to perform, but the markers dissipate quickly and require precise anatomical registration
Solution Approach 1:
The active implant is deployed during an initial procedure to establish a reference pose within the anatomical model before subsequent treatments. This preliminary placement creates a stable, trackable reference point that persists through multiple procedures, eliminating the need for repeated precise anatomical registration while maintaining simple procedural steps.
2Productivity
If multiple sequential treatments are performed on moving anatomy, then comprehensive treatment is achieved, but localization accuracy deteriorates due to anatomical variations and movements
Solution Approach 1:
The system continuously tracks the pose of the active implant relative to the anatomical model across multiple procedures. By establishing the implant pose as a reference in the anatomical model and using this reference for subsequent procedures, the system provides feedback that compensates for anatomical variations and movements, maintaining localization accuracy throughout the treatment sequence.
3Measurement precision
If anatomical registration is performed precisely for each procedure, then localization accuracy is maintained, but the complexity and time of procedures increase
Solution Approach 1:
The anatomical model and implant reference pose are established during an initial procedure. This preliminary registration creates a persistent reference framework that eliminates the need for repeated complex anatomical registration procedures, maintaining localization accuracy while significantly reducing procedural complexity and time for subsequent treatments.
4Measurement precision
If anatomical registration is performed precisely for each procedure, then localization accuracy is maintained, but the time required for procedures increases
Solution Approach 1:
The reference anatomical model and implant pose are established in advance during an initial procedure. This preliminary action creates a reusable reference framework that eliminates time-consuming repeated registration steps in subsequent procedures, maintaining localization accuracy while reducing overall procedure time.
Data Source
AI summary
Medical procedures, systems and related methods are disclosed. In some examples, a system may include an instrument for delivery of an active implant and at least one processor configured to receive information describing a pose of the active implant, determine a location of the active implant within an anatomical model based on the information describing a location of the active implant, and establish the location of the active implant as a reference within the anatomical model. In some examples, a method may include obtaining an anatomical model of a subject anatomy, determining a pose of the active implant, and registering the anatomical model to a reference frame of an instrument based on the pose of the active implant.