3D Surgical Guidance Display for Precise Device Trajectory Alignment
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Solution Overview
Problem
Existing medical device systems struggle to provide intuitive spatial guidance for healthcare providers during procedures, making it difficult to accurately position and orient medical devices relative to the target tissue.
Innovation Solution
A system that uses image guidance cues and visual displays to facilitate manual control of medical devices, providing intuitive spatial relationships between the target, medical device, and ultrasound image, allowing operators to adjust position, orientation, or trajectory.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional medical device guidance systems are used, then the system complexity is low, but the spatial guidance precision and ease of operation deteriorate
Solution Approach 1:
The patent combines multiple guidance elements (ultrasound image, trajectory indicator, intersection indicator, and target indicator) into a single integrated visual display. This merging of previously separate guidance systems into one unified interface improves spatial guidance precision without requiring multiple separate devices, thus managing system complexity through integration rather than proliferation of components.
Solution Approach 2:
The patent overlays 2D trajectory and intersection indicators on the ultrasound image plane, adding dimensional context to the guidance display. By projecting 3D device trajectory information onto the 2D ultrasound plane through visual indicators, the system enhances spatial precision without requiring complex 3D visualization hardware, effectively using dimensional projection to resolve the contradiction.
2Measurement precision
If multiple image guidance cues are displayed, then the spatial guidance precision improves, but the information processing complexity increases
Solution Approach 1:
The guidance information is segmented into distinct visual indicators: trajectory indicator showing device path, intersection indicator showing where the trajectory crosses the ultrasound plane, and target indicator showing the treatment goal. This segmentation allows precise positioning information to be conveyed through simple, discrete visual elements rather than complex data processing, improving precision while managing information complexity through structured presentation.
Solution Approach 2:
The visual indicators serve as intermediaries between the complex internal device positioning data and the operator's understanding. Rather than displaying raw coordinate data requiring complex interpretation, the system uses intuitive visual markers (lines, shapes, and symbols) that mediate the information transfer, improving positioning precision while reducing the cognitive processing complexity for the operator.
3Manufacturing precision
If real-time visual feedback is provided, then the procedure precision improves, but the system complexity and computational requirements increase
Solution Approach 1:
The trajectory indicator is calculated and displayed in advance based on the current device position and intended path. By pre-computing the trajectory line and intersection point before the device actually reaches them, the system provides precision guidance without requiring complex real-time computation during device movement, reducing computational complexity while maintaining procedure precision.
Solution Approach 2:
The system continuously provides visual feedback by updating the trajectory and intersection indicators as the device moves. This feedback loop allows the operator to see real-time guidance information that updates with device position, improving procedure precision through continuous correction while managing complexity by using simple visual updates rather than complex control algorithms.
Data Source
AI summary
A system and method for providing image guidance for placement of one or more medical devices at a target location. The system can determine one or more intersections between a medical device and an image region based at least in part on first emplacement data and second emplacement data. Using the determined intersections, the system can cause one or more displays to display perspective views of image guidance cues, including an intersection indicator in a virtual 3D space.