NEEDLE There are two types of needles:1 – hypodermic needle; Used for injection or instillation. 2 – Surgical Needle; A sharp-pointed instrument is usually used to puncture tissue, thread or wire for sutures, or ligate vessels. Classification of surgical needleDepending on the shape Straight Needles Curved needles Based on the cutting edge Round body needles Cutting needles Based on his (EYE) eye Needle with eye Eyeless Needle (Atraumatic) Based on