I have been doing my evening scan of the blogs and tonight I notice there are a few mentions of falls (not unsurprisingly) and the need to call an ambulance.
Falls was one of the biggest problem my husband had initially and it was very problematic at times getting him up for wherever he fell. The occupational therapist got us a Manga Elk to assist with the lifts and it has been an absolute "God send". With it so far, I have managed to get him out of situations such as falling down the side of the toilet, sliding out of bed to the floor, falling over whilst getting up from his chair, falling on the stairs etc. The other thing I did was a half day manual handling course which was very useful in looking at techniques to move people whilst remaining safe oneself.
Having written the above, it is getting more and more difficult to move my husband as he is becoming very rigid albeit the number of falls have greatly reduced due to increasing immobility.
If you haven't tried a Manga Elk and falls are a big issue it could be worth a try.