What results were you expecting with a mouse trap?
A broken neck.......
You could make him a latex suit, complete with multitudes of zippers and call the MouseGeek, or just put him down.

He may recover, but he may not.

How much time do you really want to spend nursing it? If it's a feeder, feed it off.

Unless you put out rodent poison. In that case, just put it down and throw it out
Well I will spend months if I have to as long as it has a shot. by the way its wild.