Guidewire Navigation for Sinuplasty Using Real-Time Tracking
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Solution Overview
Problem
Current image-guided surgery systems for ENT procedures, such as sinuplasty, face challenges in providing precise visualization and guidance for surgeons, especially when anatomical landmarks are difficult to visualize endoscopically, and there is a need for enhanced real-time tracking and instructional feedback during surgical procedures.
Innovation Solution
The development of an image-guided surgery system that uses a guidewire with a sensing coil and optic fiber for real-time tracking, combined with a processing unit that generates customized instructional images based on preoperative imaging data, allowing for precise instrument positioning and orientation within the nasal cavity, and providing a roadmap for surgical procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional endoscopic visualization is used for sinuplasty procedures, then the surgical approach is simple and direct, but the ability to visualize and navigate complex anatomical structures is insufficient
Solution Approach 1:
The patent combines multiple guidance systems (electromagnetic tracking, optical coherence tomography, and preoperative imaging) into a single integrated image-guided surgery system. This merging allows the system to provide comprehensive real-time visualization of complex anatomical structures while maintaining coordinated operation of all components through a unified control interface.
Solution Approach 2:
The patent introduces a computer as an intermediary that processes and correlates data from multiple sensors and imaging modalities. The computer generates fused images that combine preoperative CT/MRI data with real-time instrument position information, providing enhanced anatomical visualization without requiring direct complex hardware integration between all system components.
2Loss of information
If preoperative imaging alone is used for surgical planning, then the surgical plan can be prepared in advance, but real-time instrument position tracking is unavailable
Solution Approach 1:
The patent implements real-time feedback through sensors mounted on surgical instruments that continuously transmit position data to the image-guided system. This feedback loop allows the system to update instrument location displays and provide immediate guidance to the surgeon, enabling both comprehensive information availability and efficient real-time decision-making.
Solution Approach 2:
The patent performs preoperative image processing and three-dimensional reconstruction before surgery to create detailed anatomical models. This preliminary action allows surgical plans to be developed in advance with precise anatomical knowledge, while the system then transitions to real-time tracking mode during the actual procedure, combining both advantages.
3Measurement precision
If multiple sensors are mounted on surgical instruments for tracking, then real-time position data is obtained, but the device complexity and cost increase
Solution Approach 1:
The patent employs electromagnetic sensors that serve multiple functions: they provide real-time position tracking, enable three-dimensional localization, and work across different surgical instruments. This multi-functionality reduces the need for separate specialized sensors for each instrument, thereby limiting the increase in overall device complexity while maintaining high position tracking precision.
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 system enables more precise and efficient ENT procedures by offering real-time tracking and customized instructional images, improving the surgeon's ability to navigate complex anatomical structures and follow surgical plans, thereby reducing trauma to the patient and enhancing procedural accuracy.
Implementation Method 1
Instruments having sensors (e.g., electromagnetic coils that emit electromagnetic fields and/or are responsive to externally generated electromagnetic fields) mounted thereon are used to perform the procedure while the sensors send data to the computer indicating the current position of each surgical instrument
Implementation Method 2
The development of an image-guided surgery system that uses a guidewire with a sensing coil and optic fiber for real-time tracking
Data Source
AI summary
A method includes receiving image data, receiving surgical procedure data, and generating an operation plan. The image data is associated with anatomical structures in a nasal cavity of a patient. The image data and the surgical procedure data are received through a computing system. The act of generating an operation plan includes identifying a path for a surgical instrument in accordance with the image data and in accordance with the surgical procedure data. The act of generating the operation plan is performed through a computing system. The act of generating an operation plan further includes generating one or more instructional images depicting the identified path for the surgical instrument in a depiction of anatomical structures in the nasal cavity of the patient.