Healthcare worker assault

I am not sure the right place to post this, but today at work I was put in a chokehold by a patient, none of the staff member’s around intervened, in fact it was another patient that helped me. The DON, ADON, supervisor or any manager never checked on me or even acknowledged the situation. I feel very alone in this and I don’t know what to do. I don’t know what happens after this but I just had a breakdown thinking I just need to let it go since everyone else did. The management did not even have me fill out a report or anything, I took pictures and made a report on my own but the facility wouldn’t even take it.