How can I remove my wife's name from the deeds to our house without renewing mortgage?

My wife and I are separated and going through a divorce. She has said that she does not want anything to do with the house (there is no equity at present and I am paying the mortgage). My wife left the matrimonial home when we separated. I need to keep the house on as I have my two children who I have to stay over three/four nights a week, I do not want to sell it. I have looked into remortgaging the house in just my name but cannot raise the necessary amount. Can I get her name removed from the deeds - she is thinking about declaring herself bankrupt as she has racked up a lot of debt since we separated and cannot afford the repayments