Toyota Unveils Quartet of Healthcare Robots; Coming to a Hospital Near You Around 2013

I like the Walk Training Assist one.
http://www.medgadget.com/2011/11/toyota-unveils-quartet-of-healthcare-robots-coming-to-a-hospital-near-you-around-2013.html
First is the Walk Training Assist robot, which helps patients walk by using sensors to detect the intention to make a walking movement, and subsequently helping in swinging the knee forward.

Others at link with video.
Independent Walk Assist
Balance Training Assist
Patient Transfer Assist