Abstract: A fuel injection valve comprises a convex portion prominently formed on an outer end surface of a nozzle body, stepped recesses each of which has plural steps formed by press forming on the convex portion, and multi orifices as fuel nozzle holes formed by press forming so that an outlet of each of the orifices is located at a bottom face of each of the stepped recesses. Furthermore, the fuel injection valve has plural sets each of which comprises one of the stepped recesses and the relevant orifice, the orifices incline to each other, and a step on a downstream side in each of the stepped recesses has a larger diameter than a step on an upstream side thereof.

Abstract: A fluid circuit connects a pressure applying portion (17, 20) and a distal device (1) to charge fluid into the distal device (1). The fluid circuit includes a controller (10, 11) to control the movement of ligating rings (13). The controller (10, 11) senses a pressure drop in the distal device (1) when one or a plural number of the ligating rings (13) are separated from the distal device (1). The movement of the ligating rings (13) is stopped in accordance with the pressure drop so that at least two or more of the ligating rings can be separated at a time. Accordingly, ligation of esophageal varices and internal hemorrhoids can be performed successively.