Chapter7 Basic Handing Skills of Surgery

针头：needle针尖：needle针梗：needle stem针栓：needle plug乳头：hub空管：barrel注射器：syringe活塞：plunger活塞柄：plunger handle活塞轴：plunger axle。Fix the needle and collect blood samples or inject medication as needed ﹒ The needle should be withdrawn as soon as possible and press the ......