A University of Alberta researcher who developed a device to help
patients with spinal cord injuries walk was awarded a $50,000
grant on Wednesday.
Dr. Dick Stein was awarded the grant, from a foundation created by
Toronto journalist Barbara Turnbull, at a ceremony in Edmonton.
Turnbull was left a quadriplegic at age 18 after she was shot during a
convenience store robbery.
The ceremony recognized Stein's WalkAide system, a small computer
worn under clothing that delivers electrical impulses to
trigger leg movements, helping patients walk.
"When the foot is behind the leg, it activates muscles to pick up
the foot and bring the foot through. And then when the leg is in front
of the body, then it turns the stimulator off so that the foot lands
naturally on the floor," he explained.
Edgar Jackson, who was left partially paralyzed and in a
wheelchair after a motorcycle accident, said the device will allow
him to walk his daughters down the aisle.
"My daughters are 21 and 24 … Lindsay and Jennifer. And
thanks to Dr. Stein, when the day comes I'll be able to walk them both
down the aisle," said Jackson, who is already using the device.
Stein said he will use the grant money to help create a device that will allow patients to walk seamlessly.
WalkAide has only one sensor to instruct the body on how to
move, while the human body relies on more than 10,000, he
said. As well, the current device lacks the multiple sensory
perceptions used by the body — such as feedback from muscle
and skin — that helps walkers adapt to the
terrain.
To improve the system, he said, "We're looking at ways in which the
rays of electrodes could be implanted in the spinal cord itself to
access that circuitry that's still present after a spinal cord injury."