I need help with how to find ways to keep dad in his home.

In Sept dad had bladder cancer operation he also has a heart valve that is inoperatable. Up until this happened he worked a full time job and is very alet. He is becoming frail and is having trouble getting out of his recliner because of the radiation his back is sore and weak. He lives alone but I am there everyday to help him with things but I also have to work. He is not financially set for life and his medical bills are high. We can not afford home heath care or a retirement place. I could move in with him but my marrige would end. I need help with how to find ways to keep him in his home. How do I get help with home equiptment. I need to make him comfortable. thank you diane