Flexible joint, manufacturing method thereof, and bending section for surgical instruments

Abstract

A flexible joint and a manufacturing method thereof, and a bending section for surgical instruments are provided. The flexible joint comprises a first sub-joint, two opposite sides of which are each provided with a rotation slot and a rotary joint protruding from the rotation slot; a second sub-joint provided with two protruding rotation wings corresponding to each rotation slot, and a rotation interface for the rotary joint to be embedded; the rotation wing being embedded into the rotation slot and capable of rotating along a slot wall of the rotation slot with the rotary joint as a rotation center; wherein two opposite sides of the first sub-joint are each provided with an engaging part, and the second sub-joint is provided with a corresponding engaged part; the engaging part and the engaged part being fitted with each other to prevent the first sub-joint and the second sub-joint from being separated.

Dependencies are inferred from the claim text.