Videos Enjoy a selection of projects below and visit our newest videos on YouTube. Tetra transformer Bike – wheelchair cycleThis ingenious “transformer bike” allows physiotherapist Victoria to switch between wheelchair and cycle. Tetra Society volunteer Ron Payne devised this innovative solution. Tetra Leg-LifterVolunteer engineers from Tetra designed this leg-lifter to allow a Vancouver lady with a progressive muscle condition to get into, and leave, her bed independently and with dignity. Wheelchair stroller and accessible cribA roll-under crib and a wheelchair-mounted baby carrier allow this 28-year-old Vancouver mom to pick up and carry her one-year-old baby. These custom inventions are courtesy of Tetra volunteers. Vehicle Transfer AidA pulley system mounted to the roof rack of a family car made it easier to transfer a child when she was younger between her wheelchair and car seat. Today she uses an accessible van. Adapted recorderThis 11-year-old boy, who is unable to use his left hand following surgery to remove a brain tumour, wanted to be like any other student in his school music class. Tetra Society sling vestThis unobtrusive design converts from a vest to a sling, allowing Heather, from Vancouver some relief from arthritis in her collarbones. This design, created by Tetra volunteers, is more comfortable and unobtrusive. Wheelchair Driveway Hoist Bowling Ball Chute Wheelchair Lift Adapted Bike Trailer Scooter travel ramp Tetra Documentary Workshop skills Foot exerciser Wheelchair rifle mount