3D Head Scan Model for Accurate EEG Patch Placement
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Solution Overview
Problem
Current methods for electrical brain stimulation and EEG brain wave inspection face challenges in accurately attaching patches due to the variability in brain structures and head shapes, making it difficult to deliver targeted treatments effectively.
Innovation Solution
A patch guide method and program that utilizes a depth camera to acquire a 3-dimensional scan model of the head, matches it with a 3-dimensional brain MRI model, and guides the attachment of patches to specific locations based on simulated electrical stimulus delivery, ensuring accurate placement and optimal treatment outcomes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If patches are attached based on standard head models, then the process is simple and quick, but the accuracy of patch placement varies due to individual differences in head shapes and brain structures
Solution Approach 1:
The patent creates a 3D copy of the patient's actual head geometry using surface scanning, which is then registered with the patient's specific MRI data. This personalized 3D head model serves as a custom template that accurately represents the individual's anatomical features, allowing precise patch placement that accounts for unique head shape variations while maintaining procedural simplicity
Solution Approach 2:
The system performs preliminary actions by pre-calculating optimal patch placement locations on the personalized 3D head model before the actual procedure. The registration between the 3D head model and MRI data is completed in advance, and the guidance system is prepared with pre-determined target coordinates, enabling accurate and efficient patch attachment during the procedure without requiring complex real-time calculations
2Measurement precision
If individualized MRI-based guidance is used, then patch placement accuracy is improved, but the time and complexity of the procedure increases
Solution Approach 1:
The patent performs all complex preprocessing operations in advance: the 3D head model is generated from surface scans, registered with the patient's MRI data, and used to pre-calculate the optimal coordinates for patch placement on the brain. This preliminary preparation ensures that during the actual procedure, the system only needs to display pre-determined guidance information, significantly reducing procedure time while maintaining high accuracy
Solution Approach 2:
The system creates a virtual 3D copy of the patient's head and brain anatomy that can be manipulated and measured without affecting the actual patient. This virtual model allows for precise measurement and planning of patch placement locations, and the same model is used throughout the procedure for consistent, accurate guidance without requiring repeated imaging or calculations
Data Source
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AI summary
Disclosed is a patch guide method including acquiring a 3-dimensional scan model including the head of an object by using a depth camera, by a computer, acquiring a 3-dimensional brain MRI model of the object, matching the scan model and the brain MRI model to acquire a matched model, acquiring an image captured by photographing the head of the object by using the depth camera, and matching one location of the captured image and one location on the matched model.