Injection system, syringe, and adapter

Abstract

An injection system includes: a syringe having a cylinder to be filled with a chemical liquid, a flange projecting laterally from the cylinder, an end portion through which the chemical liquid passes when the chemical liquid is pushed out, and a syringe screw portion formed on a side opposite to the end portion; an adapter for holding the syringe, the adapter having a receiving portion for receiving the cylinder, a regulating wall for abutting the flange, and an adapter screw portion engaged with the syringe screw portion; and an injection device provided with a holder to which the adapter is to be attached. In this injection system, a tightening direction by the syringe screw portion and the adapter screw portion is set in a direction toward the end portion.

Dependencies are inferred from the claim text.