Multi-mode Medical Device System for MR Tracking and Internal Imaging
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Solution Overview
Problem
Current endovascular procedures rely on x-ray fluoroscopy and angiography, which expose patients and staff to ionizing radiation and require multiple devices for tracking and imaging, increasing procedural complexity and risk.
Innovation Solution
A multi-mode medical device system capable of MR internal imaging and tracking, integrating a medical device with a tracking device and an imaging device to allow for simultaneous position tracking and anatomical structure imaging under MR guidance, reducing the need for multiple device insertions and extractions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If x-ray fluoroscopy and angiography are used for guidance, then real-time imaging is achieved, but ionizing radiation exposure increases
Solution Approach 1:
The patent combines tracking device functionality with imaging device functionality into a single integrated system. The tracking device includes both a position tracking component and an internal imaging component, allowing simultaneous tracking and imaging without requiring separate devices, thereby eliminating radiation exposure while maintaining real-time monitoring capabilities.
Solution Approach 2:
The patent replaces the x-ray based imaging system with an MR-compatible tracking and imaging system. Instead of using ionizing radiation (x-rays), the system uses MR-compatible tracking devices with internal imaging capabilities that operate within the MR scanner's magnetic field, substituting a harmful physical mechanism with a safer alternative.
2Adaptability or versatility
If multiple separate devices are used for tracking and imaging, then specialized functions are achieved, but device complexity and procedural risk increase
Solution Approach 1:
The patent merges the tracking device and imaging device into a single integrated unit. The tracking device includes both position tracking functionality and internal imaging functionality, allowing both specialized functions to be performed by one device rather than multiple separate devices, thereby reducing procedural complexity and risk.
Solution Approach 2:
The tracking device is designed with multi-functionality, serving both as a position tracker and an internal imager. This universal device can perform multiple functions that previously required separate specialized devices, reducing the overall number of devices needed while maintaining specialized capabilities for both tracking and imaging.
3Adaptability or versatility
If multiple device insertions and extractions are performed, then comprehensive tracking and imaging are achieved, but procedural time and risk increase
Solution Approach 1:
The patent combines tracking and imaging functions in a single device that can be inserted once. This integrated device performs both tracking and imaging during a single procedural pass, eliminating the need for multiple insertions and extractions of separate devices, thereby reducing procedural time and associated risks.
Solution Approach 2:
The integrated tracking and imaging device enables continuous monitoring and imaging throughout the procedure without interruption. Both functions operate simultaneously during a single continuous procedural pass, maintaining useful action without the breaks required by multiple device insertions and extractions.
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 approach minimizes radiation exposure, enhances imaging capabilities with 3D visualization, and simplifies procedures by enabling single-pass tracking, visualization, and imaging, thereby improving safety and efficiency in endovascular therapies.
Implementation Method 1
magnetic resonance (MR) has been used to a large extent solely for diagnostic applications
Implementation Method 2
MR angiographic techniques are increasingly being used for diagnostic evaluation of these patients
Data Source
AI summary
A multi-mode medical device system and method of performing an interventional procedure. The multi-mode medical device system can be capable of MR internal imaging and of being tracked using an MRI system. The multi-mode medical device system can include a medical device, and an electrical circuit coupled to the medical device and electrically coupled to the MRI system. The electrical circuit can include a tracking device configured to transmit a signal to the MRI system indicative of the position of the tracking device relative to a roadmap image, and an imaging device electrically coupled to the tracking device and configured to internally image anatomical structures from the point of view of the medical device. The imaging device can be further configured to be visualized using MR imaging. Tracking the tracking device and internally imaging with the imaging device can be performed in a single pass of the multi-mode medical device system.