Robotic Head Mount for 3D Gaze Stabilization
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Solution Overview
Problem
Existing systems for diagnosing and treating vestibular and ocular disorders are limited in their ability to precisely manipulate and position a human subject's head in three-dimensional space, leading to inaccuracies and inefficiencies in therapy and diagnosis.
Innovation Solution
A robotic arm system with a head mount that allows for precise three-dimensional movement of a human subject's head, combined with sensors and visual targets for data collection and therapy, enabling controlled and reproducible vestibular-ocular rehabilitation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a robotic arm system is used to manipulate the head in three-dimensional space, then head positioning precision and therapy reproducibility are improved, but device complexity increases
Solution Approach 1:
The robotic arm system is divided into multiple segments with independent rotational joints, allowing complex three-dimensional head positioning to be achieved through coordinated movement of simpler modular components. This segmentation enables precise control while maintaining manageable system complexity through standardized interfaces and independent control of each degree of freedom.
Solution Approach 2:
The robotic arm system is designed to perform multiple functions including head positioning, eye movement tracking, and vestibular stimulation. By integrating these functions into a single multi-functional platform, the system achieves high measurement precision across different therapeutic modalities without proportionally increasing overall device complexity.
2Measurement precision
If sensors and data collection systems are integrated into the head mount, then therapy monitoring and diagnosis accuracy are improved, but weight on the subject's head increases
Solution Approach 1:
Traditional mechanical eye tracking systems are replaced with optical sensors that can detect eye position and movement without physical contact. This substitution eliminates the need for heavy mechanical linkages and actuators on the head mount, reducing weight while maintaining high measurement precision through non-contact optical methods.
Solution Approach 2:
The head mount incorporates lightweight flexible materials and thin-film sensor substrates that minimize weight while providing sufficient structural support for sensor integration. These thin-film structures allow sensor placement close to the head without adding significant mass, enabling accurate tracking of head and eye movements with minimal burden on the subject.
Data Source
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AI summary
A system is disclosed that allows a practitioner to rotate a human subject's head in three- dimensional space using a robotic arm with a head mount attached to one end, while the subject is focused on a visual target.