A kind of introscope ball and socket structure with plural bending curvature,Include: a backbone,With elasticity； An at least articular lamella,On the fixed what backbone,An at least articular lamella has at least a pair of of perforation and an at least hollow-out parts through its plate face； One head end connector and a tail end connector,The head end and tail end of the what backbone are set respectively； And at least one control cable,Across the perforation of the tail end connector and an at least articular lamella,And fix the what head end connector； Wherein,It defines the backbone and is divided into leading portion and Hou section,Spacing between an at least articular lamella and the tail end connector of the spacing system big what position what backbone Hou section between an at least articular lamella and the head end connector of the position what backbone leading portion. Thereby, have and be easy production, cost is lower, and has the effect of differently curved curvature.一種具有複數彎曲曲率的內視鏡關節構造，包含有：一骨幹，具有彈性；至少一關節板，固設於該骨幹上，該至少一關節板具有貫穿其板面的至少一對穿孔以及至少一鏤空部；一頭端連接件及一尾端連接件，分別設於該骨幹的頭端及尾端；以及至少一控制纜，穿過該尾端連接件以及該至少一關節板之穿孔，而固定於該頭端連接件；其中，定義該骨幹分為前段及後段，位於該骨幹前段的該至少一關節板與該頭端連接件之間的間距係大於位於該骨幹後段的該至少一關節板與該尾端連接件之間的間距。藉此，具有容易生產，成本更低，且具有不同彎曲曲率的效果。
