Jump to content

Sip-and-puff

Edit links
From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by 31.222.223.251 (talk) at 10:44, 6 March 2013 (→‎Calibration and Setup). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

the Patient Operated Selector Mechanism (POSM or POSSUM), was developed in the early 1960s, and used a sip-and-puff control mechanism

Sip-and-Puff or Sip 'n' Puff (SNP) technology is a method used to send signals to a device using air pressure by "sipping" (inhaling) or "puffing" (exhaling) on a straw, tube or "wand." It is primarily used by people who do not have the use of their hands. It is commonly used to control a motorized wheelchair by quadriplegics with very high injury to their spinal column or people with ALS. [1]

you divs get a life

Motorized Wheelchair Control

Typical applications of Sip-and-Puff devices are for control of a motorized wheelchair. Control typically consists of four different inputs from the user. An initial hard puff will enable the wheelchair to move forward, while a hard sip will stop the wheelchair. Conversely, an initial hard sip will enable the wheelchair to move backward, while a hard puff will stop the wheelchair. A continuous soft sip or soft puff will enable the wheelchair to move left or right respectively depending on how long the user blows into the tube, straw or "wand".

Computer input device

The mouth-controlled input provide users a simple and effective way to control mouse movement. Movement and operation of this joystick is similar to that of a mouthstick. Mouse button clicking is accomplished with the help of sips or puffs function of the joystick.

A sip-and-puff input device combined with scanning software means many keyboard-accessible programs can be used with this device.

References

  1. ^ "Alternative wheelchair control - ATWiki". Atwiki.assistivetech.net. Retrieved 2011-11-04.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Sip-and-puff&oldid=542354668"