“…Conservative procedures for controlling digestive tract bleeding include cold water rinsing through a sonde or endoscope, local diffusion or injection of vasoconstrictive agents, and other measures differently reported; spraying of clotting factors (Linscheer and Fazio 1979), clipping hemostasis (Hayashi et al 1975), high frequency current coagulation (Papp 1975;Matek et al 1979), and laser coagulation (Kiefhaber et al 1977). Either of them, however, proving more or less faulty, the present author was struck with an idea that whether bleeding in the digestive tract could be suppressed if the tissue involving a bleeding site was locally solidified.…”