A novel accelerometer tilt switch device for switch actuation in the patient with profound disability.
case_report · Level V
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- Record sourced from PubMed, PMID 12808551.
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Abstract
We describe the design and operation of a new switch that can be operated by patients with severely limited movement. The basis for the switch is an inexpensive single-chip accelerometer device. The switch responds to a relatively rapid rotation of the active components. We have ensured that the sensitivity of the switch device is adjustable over a wide range. The device automatically adjusts for changes in attitude of the device that result from a patient changing posture. We show that the device can operate in a wide range of attitudes. We describe 2 case studies in which the switch was successfully used as a head tilt switch.
Medical subject headings
- Brain Diseases
- Communication Devices for People with Disabilities
- Persons with Disabilities
- Self-Help Devices
- User-Computer Interface