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Mouth-controlled mouse for quadriplegic disabled people: System design and validation.

Sheng-Yuan Lin1, Cheng-Chi Tai1, Tsui-Ping Lu2

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The Review of Scientific Instruments
|September 5, 2024
PubMed
Summary

This study introduces the bite-press mouth-controlled mouse (BPMCM), a new computer aid for individuals with quadriplegia. The BPMCM enables computer control through head movements and biting, offering convenience and reduced physical exertion.

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Area of Science:

  • Assistive Technology
  • Biomedical Engineering
  • Human-Computer Interaction

Background:

  • Individuals with high cervical cord injuries or quadriplegia experience significant challenges operating standard computer mice.
  • Existing mouth-controlled assistive devices often require complex techniques like sip-and-puff or voice commands, leading to longer adaptation times and reduced convenience.

Purpose of the Study:

  • To develop and evaluate a novel mouth-controlled mouse-aid, the bite-press mouth-controlled mouse (BPMCM), designed to enhance computer accessibility for disabled individuals.
  • To offer a more intuitive and less physically demanding alternative to traditional computer control methods for people with severe motor impairments.

Main Methods:

  • The BPMCM utilizes a joystick controlled by neck and head movements for cursor positioning.
  • Mouse functions (left-click, right-click, drag) are activated via distinct bite-press durations.
  • The device features plug-and-play compatibility with mainstream operating systems.

Main Results:

  • Disabled individuals using the BPMCM demonstrated computer operation capabilities comparable to healthy participants.
  • Both disabled users and healthy participants completed computer tasks within 5 minutes.
  • Voluntary disabled participants showed immediate adaptability to the BPMCM interface.
  • The BPMCM required approximately half the physical exertion compared to other mouth-controlled aids necessitating voice commands.

Conclusions:

  • The bite-press mouth-controlled mouse (BPMCM) effectively enables disabled individuals, particularly those with quadriplegia, to operate computers at a level comparable to healthy users.
  • The BPMCM offers a user-friendly, convenient, and less physically demanding solution for computer access, reducing adaptation time and improving user experience.