Maybe this has a name in some martial art, but to me, this is pure Hollywood fantasy with no real-life value as a technique.
Just consider what is needed for that to function:
- You have to bend the offender's arm towards their body.
- Without you getting cut.
- Without them simply moving back..or turning.
I see no way for that to happen. You would have to be able to grab their neck in order to hinder them from going back and to support breaking their frame. Stiffening the arm is a natural behavior when you hold a knife, ie. you would have to bend their arm with force, which is impossible without having a hold (or wall) to push against. It is possible to hit into the crook of the arm for support, but other than the knee, it has no bending reflex if hit there, so the effect will be limited against an equally strong or stronger opponent. Additionally, I see no reason why the offender would...like...NEVER turn their wrist or their body at any point, making the whole thing useless.
Just compare to the knife fight in John Wick 2 (a movie which generally is...at least more realistic when it comes to martial arts). It shows just how much force it takes even with pushing against an obstacle. And this man has a back-hand grip, which makes it actually harder to push back for him.
What's worse: You would put yourself into the danger zone. One flick of the wrist and it's you on the receiving end. Not worth it. Ever. If you can hold that knife away from you while getting within distance - which would use a stiff arm as a frame holding the knife down - you punch and knee until the offender has other things to do rather than concentrating on the pointy thing in their hands. I see no reason why one should try to move that knife in such a way since it keeps the offender's focus on that knife, where it was all the time. A main aspect of knife defense involves using the fact that they concentrate on the knife and attacking the offender directly, only to use disorientation and pain to disarm afterward, if at all.
The reasons I presented in this answer of mine hold here as well: When it comes to knife fight, what we have is fast and messy and you would never EVER train once in a lifetime moves like this one.