QUANTITATIVE SYRINGE-TYPE EJECTOR

摘要

A quantitative syringe-type ejector capable of ejecting the contents packed in one syringe in small quantities is provided. The quantitative syringe-type ejector includes a syringe and a plunger. The plunger includes a piston holding member and a plunger operation member. The piston holding member has at least one arm having: a slide projection slidable on an inner peripheral surface of the syringe; and a lock projection to be releasably locked to a back end of the syringe. The plunger operation member has a lock part to be releasably locked to the back end of the syringe.

主权项

1. A quantitative syringe-type ejector comprising:
a syringe; and a plunger pushable into the syringe, wherein the plunger includes: a piston holding member having a piston in front and at least one arm extending backward; and a plunger operation member located behind the piston holding member to press the arm forward, the piston holding member has, on the arm: a slide projection for deforming the arm inward while sliding on an inner peripheral surface of the syringe; and a lock projection located behind the slide projection to be locked to a back end of the syringe, the lock of the lock projection to the back end of the syringe is released when the plunger operation member is pushed in a state where the arm is deformed inward, and the plunger operation member has a lock part to be releasably locked to the back end of the syringe.