Brasco's Bladder Surgery

Brasco is a 6 year old vibrant chi/pin. While having a routine teeth cleaning, it was discovered he had bladder stones. He has 3 stones in total and one that is already blocking his urnine when he pees. We did not see this coming since he is normally a very heathly pup. He will need surgery as soon as possible. We would greatly appericate any help you may be able to give.