Brave Capsule??

My husband just had an end. yesterday and not telling us they put this brave capsule in him. Now he is suppose to carry this electrical device with him and record his times of eating, sleeping and whenever he feels heartburn, chest pains- Well my husband is all man and what man really does this?? He doesn't have heartburn ever- He is having chest pains and they ruled out his heart- and the scope down his throat didn't show anything- so why did this Dr. do the brave capsule for? For the insurance money?? Is the brave capsule safe?? How new is this/? Any comments??? Just had to vent- Mad at Dr.- Mad at husband-