What is this fixture on an institutional toilet? (pictures)

Factual Questions
1

I saw this toilet in a bathroom at Boston University Medical Center, and it has a fixture on it that looks like a little shower head that pivots up and down from the water supply pipe at the back of the bowl. I thought it might be some sort of bidet, but when you pull it down into positon, the water sprays downward, into the bowl.

What is this for?

Picture #1
Picture #2
Picture #3

2

It’s used for rinsing out urinals, bedpans and bedside commode pots. Many hospital bathrooms have them and they are very handy for the purpose.

3

Thank you! I knew it had to be hospital specific, but that never occurred to me. Makes sense.