AKICIF: Anime about Elderly Care?

[jeriendhal]

I'm trying to remember the title of an anime movie that was shown several times on the Sci-Fi Channel back when they had a Saturday Morning Anime line up. The premise was one of those "only in Japan" things, where a highly robotized hospital bed was caring for a very elderly man, and through the actions of a candy striper and some retired computer programmers accidentally give it sentience and it takes its patient on a wild ride through Japan, trying to get the old man to a the beach to relive some happy memories he had of his wife, modifying itself into a tank along the way.

It was probably a satire of attempts in Japan to introduce robots into elderly care at the time.