Six-button Click Interface for a Disabled User by an Adjustable Multi-level Sip-and-Puff Switch

C. Gerdtman
School of Innovation, Design and Engineering, Mälardalen University, Västerås, Sweden \ Motion Control i Västerås aktiebolag, Västerås, Sweden

M. Lindén
Motion Control i Västerås aktiebolag, Västerås, Sweden

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Ingår i: Proceedings of SIGRAD 2010

Linköping Electronic Conference Proceedings 52:10, s. 59-63

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Publicerad: 2010-11-29

ISBN: 978-91-7393-281-3

ISSN: 1650-3686 (tryckt), 1650-3740 (online)


There are various ways to control a computer; but today the mouse function; to move a cursor and to perform a click function; is essential. For motion-disabled persons; especially persons with high spinal cord injuries; special aids are needed to perform these interactions. In this study; an alternative way to perform a click function has been investigated; the sip-and-puff function. The purpose of the study was to improve an existing equipment used for click function; a sip-and-puff unit. An user-centred design approach was used; which means that the users took an active role in the development process; testing the prototypes in each development step and providing input for improvements. A survey of existing sip-and-puff units were performed; and from this and successive tests with the users; a sip-an-puff system was developed. As a result; a six level sip-and-puff unit to control a computer was developed. It was shown that spinal cord injured with high neck injuries could control a computer by using a multi-level sip-and-puff and that they could control the computer faster when they used a multileveled sip-and-puff instead of using a traditional sip-and-puff that only had two levels.

Categories and Subject Descriptors (according to ACM CCS): H.5.2 [Information Interfaces and Presentation]: User Interfaces—Input Devices and Strategies


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