Keep the Wheelchair From Rolling Away

Correspondence from www.saferwheelchairs.com reports that the U.S. Consumer Product Safety Commission has recorded 167 deaths due to wheelchair-related accidents from 1997-1999. Of these, 105 were wheelchairs rolling away from the person for one reason or another.

The response? A mistake-proofing device that locks the wheelchair when no one is sitting in it.  An unlocking lever on the handle allows the wheelchair to be moved when empty.