An auxiliary device for facilitating reciprocal movement of the syringe piston

摘要

The present invention discloses an auxiliary device that can easily adjust the reciprocating movement of a syringe piston. The present invention relates to a syringe comprising a cylinder and a piston by sucking blood from a blood vessel or injecting an injection into a blood vessel, wherein a fastening member is attached to a circular member at the rear end of the piston, and a projecting member And the movement of the piston can be adjusted by pushing and pulling to facilitate the fine reciprocating motion of the piston in the cylinder. In addition, when the blood is drawn through the blood vessel of a patient or a livestock, or when an injection is injected into a blood vessel, And the blood collection operation or injection operation is completed within a short time, thereby reducing the pain and stress of the patient and the livestock.