ONE-HAND-OPERATED BLOOD-TAKING SYRINGE

摘要

Novelty: a one-hand-operated blood-taking syringe is disclosed. Constitution: the main body Δ, the piston e, the guide (ΣΤ) seated on the main body and the toothed stem A adapted and moving on the aforementioned guide with the assistance of the gear Γ which is stabilized on the projection of the main body B. Purpose: to take blood with one hand, the other hand remaining free.