Electromagnetic Navigation Device Guidewire Hub Tracking
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Solution Overview
Problem
Current endovascular aneurysm repair (EVAR) procedures face complications such as endoleaks and ischemia due to inadequate imaging and tool misplacement, which are exacerbated by the need for redesigning interventional tools to incorporate electromagnetic tracking systems, increasing the burden and complexity of tool development and deployment.
Innovation Solution
The integration of guidewires and hubs with electromagnetic sensors for guiding and tracking interventional tools within anatomical regions, allowing for electromagnetic sensing of position and orientation, thereby facilitating more precise navigation and reducing the need for extensive redesign of existing tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electromagnetic sensors are integrated at the tip of interventional tools, then navigation precision is improved, but device complexity and redesign burden increase
Solution Approach 1:
The electromagnetic tracking system is segmented into separate components: a guidewire with EM sensors and a hub that attaches to the interventional tool. This allows the EM sensing capability to be separated from the main tool design, reducing the complexity burden on the interventional tool while maintaining navigation precision through the guidewire's integrated sensors.
Solution Approach 2:
The guidewire acts as an intermediary carrier for the electromagnetic sensors. Instead of directly integrating sensors into the complex interventional tool, the sensors are placed on the guidewire which then mediates the tracking function, simplifying the overall system architecture while preserving measurement precision.
2Adaptability or versatility
If additional lumens are added to connect EM sensors to measurement systems, then electromagnetic tracking capability is improved, but manufacturing complexity increases
Solution Approach 1:
The guidewire serves multiple functions: it provides mechanical guidance, supports the electromagnetic sensors, and acts as a signal transmission medium. This multi-functionality eliminates the need for separate lumens dedicated solely to EM sensor connections, reducing manufacturing complexity while maintaining tracking capability.
Solution Approach 2:
The electromagnetic sensor connections are merged with the existing guidewire structure. Rather than adding separate lumens for EM signal transmission, the system combines the sensing and transmission functions into the guidewire's existing architecture, simplifying manufacturing processes.
3Reliability
If EM sensors are embedded in interventional tools, then real-time tracking is improved, but the burden of re-design and re-verification increases
Solution Approach 1:
The tracking system is segmented into a reusable guidewire module with EM sensors and a separate hub interface. This segmentation allows the EM sensing component to be independently verified and reused across different interventional tools, reducing the overall re-design and re-verification burden while maintaining real-time tracking reliability.
Solution Approach 2:
The guidewire with integrated EM sensors serves as a standardized template that can be replicated and applied to various interventional tools. Once the EM sensing guidewire is verified, it can be copied and used with different hubs and tools without requiring re-verification of the core sensing mechanism, reducing the re-design burden.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the precision and safety of EVAR procedures by providing real-time tracking and navigation data, reducing the risk of endoleaks and ischemia, and simplifying the integration of electromagnetic tracking into existing interventional tools.
Implementation Method 1
the guidewire includes one or more guidance electromagnetic sensors generating guidance data informative of an electromagnetic sensing of a position and/or an orientation of the guidewire within the anatomical region
Implementation Method 2
the hub includes a tracking electromagnetic sensor generating tracking data informative of an electromagnetic sensing of a position and/or an orientation of the hub relative to the guidewire
Data Source
AI summary
An electromagnetic navigation device for guiding and tracking an interventional tool (40) within an anatomical region. The electromagnetic navigation device employs a guidewire (20) insertable into the anatomical region, and a hub (30) translatable and/or rotatable in conjunction with the interventional tool (40) relative to the guidewire (20). In operation, the guidewire (20) includes one or more guidance electromagnetic sensors generating guidance data informative of an electromagnetic sensing of a position and/or an orientation of the guidewire (20) relative to the anatomical region, and the hub (30) includes a tracking electromagnetic sensor (31) generating tracking data informative of an electromagnetic sensing of a position and/or an orientation of the hub (30) relative to the guidewire (20). Responsive to the electromagnetic sensing data, a navigation controller (76) controls a determination of a position and/or an orientation of the interventional tool (40) relative to the guidewire (20).