Modular MRI Surgical Guide with Adjustable Trajectory Blocks
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Solution Overview
Problem
Current image-guided surgical systems for minimally invasive procedures are inefficient and complex, lacking in reproducibility and ease of use.
Innovation Solution
A guide system comprising a base, an adjustment ring, and multiple guide blocks with incremental rotational orientations, allowing for precise setting of trajectory paths for interventional medical instruments using MRI guidance, reducing complexity and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional image-guided surgical systems are used, then surgical procedures can be performed with imaging guidance, but the systems are highly complex and complicated to utilize or control
Solution Approach 1:
The guide system is divided into separate modular components: a base component that attaches to the patient's anatomy, an adjustable guide body with multiple guide blocks, and interchangeable trajectory stems. Each component can be independently positioned and secured, allowing complex surgical guidance to be achieved through simple, discrete adjustments rather than a monolithic complex system.
Solution Approach 2:
The guide system is designed to provide multiple trajectory paths and angular orientations through a single versatile apparatus. The adjustable guide body can accommodate various guide blocks with different trajectory configurations, enabling one system to perform multiple surgical guidance functions rather than requiring separate specialized devices for each trajectory type.
2Reliability
If traditional image-guided surgical systems are used, then surgical procedures can be performed, but the systems lack efficiency and reproducibility
Solution Approach 1:
Multiple guide blocks with pre-configured trajectory paths are provided in the system. These guide blocks are designed with predetermined angular orientations and trajectory configurations that have been optimized beforehand. During surgery, the appropriate pre-configured guide block can be quickly selected and installed without requiring complex real-time calculations or adjustments, thereby improving surgical efficiency while maintaining reproducibility.
3Measurement precision
If complex systems are used for trajectory setting, then accurate trajectory paths can be achieved, but the systems are complicated to utilize or control
Solution Approach 1:
The guide blocks and trajectory stems are designed with self-aligning features and intuitive mechanical interfaces. The guide blocks automatically orient themselves relative to the base component when installed, and the trajectory stems feature self-retaining mechanisms that secure them in the correct position without requiring complex adjustment procedures. This allows accurate trajectory setting through simple, self-explanatory operations.
Data Source
AI summary
A system and method are provided for a guide system for guiding an interventional medical instrument toward a region of interest (ROI) along a predetermined trajectory path. The guide system comprises a base, an adjustment ring, and a plurality of guide blocks. The adjustment ring is configured to be selectively fixed in one of a plurality of rotational orientations with respect to the base. The plurality of guide blocks are each configured to be selectively fixed in one of a plurality of rotational orientations with respect to the adjustment ring and each include a guide hole. Each of the plurality of guide blocks include at least one of differing angles of trajectory or differing locations of the guide hole from others of the plurality of guide blocks to provide a selectable, predetermined location of the guide hole and angle of trajectory.