A sip-and-puff can make a world of difference to a quadriplegic ... The hollow 3D-printed mouthpiece acts as handle for a joystick module , and a length of tubing connects the mouthpiece to ...

a cursor is moved to a letter using some method (joystick, mouse emulator, buttons, or eye tracking) and that letter is selected with a sip or puff into a tube. [Ana] saw such systems as effective ...

Previously, Alex used to play these games using an assistive device called the Quadstick — a mouth operated joystick with sip-and-puff pressure sensors and a lip position sensor for clicking.

"Mechanical actuators are what edge the ski so as the athlete uses the joystick or the 'sip and puff' it will edge the ski up and let it do its turn.” By “Sip and Puff,” Hanson was ...