World Laparoscopy Hospital - Scissors

Jean-Claude Margueron of Emar in Fourteenth Century BC invented Scissors [1]. Scissors are one of the oldest surgical instruments used by surgeons. Scissors are used to perform many tasks in open surgical procedure but its use in minimal access surgery is restricted. In minimal access surgery scissors require greater skill because in inexperienced hand it may cause unnecessary bleeding and damage to important structures.

Scissors works on the principle of class 1 lever (two class 1 levers). In class 1 Lever, the pivot (fulcrum) is between the effort and the load. The more the length of the handle or the fulcrum of the scissors, the less force of cutting will be required. The laparoscopic scissors do not apply the exact law of lever because of the cylinder action of the long shaft, but the design of handle helps in the amplification of force by lever action.