Structure
--Sliding barrel
--Trigger button
--Cover of trigger button
--Lancet carrier
--Lancing device cover
--Internal barrel
--Regulator
--Spring cap
--Spring in the front
--Spring at the back
 Purpose
The lancing device is used for gather blood form human body as essential instruments,can reduce the sufferings of patients.The lancing deviceu have very good effects to improve the level of medical treatment and public health