Am I entitled to a percentage of my wife's settlement?

Several years ago, my wife had an operation that required her to have a mesh sling put under her bladder. The mesh was faulty, and had expired before the doctor installed it in her. She is now in the process of receiving about $168,000 from a malpractice lawsuit. We no longer live together due to her infidelity, but remain married. Am I entitled to any of this money or is there any way that I can oversee the money so she can't spend it on her boyfriend? I believe the money should stay in our immediate family. She has 2 daughters (my stepdaughters) that I love dearly. Since the operation, my wife has went through cancer and several other operations with me and the girls by her side. I'm not looking for a hand out or being greedy. I just want to make sure that the girls are taken care of and she can't pay someone else's bills. If I am entitled to any of the money, I would like to put a large percentage of my cut into a trust fund of some sort for the girls.