Bed that converts to wheelchair puts nurses, doctors in driver's seat

Leslie D. Green Special to Crain's Detroit Business - When his sister injured her back after lifting a patient, a young Bob Karwal thought it was an inevitable part of his sister's nursing job. Yet many years later, when the mechanical engineer tried finding a suitable wheelchair for his grandfather, he said, "enough is enough." "We have robots that lift door panels to help workers in the factory, we should have things of this nature to help lift your grandfather, your grandmother, your sister, your brother. We don't have that ability." Nurses,