A system of medical devices implantable in the human body using transabdominal gastroscopy surgery to repair failing sphincters and to prevent obesity. A stainless steel non-magnetic spring covered with silicon or other long-term tissue friendly plastic can be installed in place of a natural sphincter by tunneling through a non-functional natural sphincter and pulling the artificial sphincter into the tunnel to form a ring. The device can be tied on the end with suture to form a permanent structure. Without pressure, the device will be continuously closed however, it will open under natural pressure on it just as a natural sphincter. A intragastric suspended balloon can be sutured into the stomach to cut appetite. The balloon can be roughly the shape of a pepper and take up room in the stomach without closing it off.
