Abstract: A gap control part controls a clamping device so that mating surfaces in a die face each other across a gap, and thereby a cavity and an external part of the die communicate across the gap. A molten metal feed control part controls a molten metal feed device so as to feed molten metal into a sleeve when the gap is being maintained. An injection control part controls an injection device so as to start a forward movement of a plunger at a time when the gap is maintained and there is the molten metal in the sleeve. A clamping control part controls a clamping device so as to make the mating surfaces abut against each other to eliminate the gap after the forward movement of the plunger is started and before the molten metal reaches a molten metal surface height at which the molten metal flows into the gap.

Abstract: An object of the present invention is to provide a safe surgical needle apparatus, and a surgical needle and a needle holder used therein, which can prevent the medical participants from being erroneously punctured with a tip end of the surgical needle and can permit a smooth tissue penetration of the surgical needle only when performing a suturing work.