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Mechanical characteristics of micro-switches adapted for the physically disabled
1School of Physical and Occupational Therapy, McGill University, Montreal, Canada.
Journal of Biomedical Engineering
|September 1, 1990
Summary
This study measured mechanical characteristics of adapted switches, providing quantitative data on their performance. This information helps clinicians select the best assistive technology switches for users.
Area of Science:
- Engineering
- Rehabilitation Technology
- Assistive Technology
Background:
- Adapted switches are crucial assistive technology for individuals with motor impairments.
- Standardized mechanical characterization of these switches is lacking.
- Objective data is needed to guide clinical selection and prescription.
Observation:
- A mechanical testing setup was developed using a stepping motor and strain gauges.
- Key mechanical properties measured included activation force, deactivation force, travel distance, and switch compliance.
- Multiple commonly used adapted switches were evaluated.
Findings:
- Significant variations in mechanical characteristics were observed among different adapted switches.
- Quantitative data on operating forces and travel were successfully collected and compared.
- Switch compliance varied, impacting the effort required for activation and deactivation.
Implications:
- Provides clinicians with objective data for informed prescription of adapted switches.
- Enables a more precise match between user needs and switch capabilities.
- Contributes to optimizing the effectiveness of assistive technology for improved functional outcomes.