Have they tried changing his batteries.
I understand the process is that they roll you onto your stomach, pull up the bed gown, apply large quantitys of KY gel to 4 or 5 (depending on what model you are) Lithium 'D' Cell batteries and using a croquet mallet they forcibly.... well i guess you can work out the rest yourself

all joking aside, its good to hear he's on the mend.