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Difference Between Flexible and Rigid Endoscopy in Structures

Flexible endoscope: Generally, it includes the following basic structures: the front end, the bending part, the insertion tube, the manipulation part, the joint part and the imaging interface part. The front end is a Rigid part, and the end face is provided with a plurality of cavities and windows, namely, a water supply and air supply outlet hole, a biopsy forceps outlet hole, an objective lens and a light guide window. The air supply is a common outlet, and when air is injected, the air enters the cavity of the human body through this hole to expand the cavity; When water is injected, the water comes out from this hole to wash the objective lens and the operating field, so that the visual field can be kept clear. The outlet holes of suction forceps and biopsy forceps are the same nozzle. When there is too much liquid in the cavity that hinders observation, press the suction button, and the liquid can be sucked into the suction bottle through this hole. Biopsy forceps and other therapeutic instruments also enter the body cavity through this hole. The manipulation part includes an angle control knob, suction valve button, water supply and air supply button and biopsy tube opening, where the operator can operate various buttons to complete endoscopic examination and treatment.

Rigid endoscope: All kinds of Rigid-tube endoscope structures generally include the outer endoscope tube (or sheath), the endoscope body, the light guide bundle interface, the target end connection and the imaging interface. Unlike Flexible endoscopes, which all have operating channels, some rigid endoscopes for sale have no instruments and water vapor channels, such as laparoscopy, thoracoscopy, mediastinoscopy and arthroscopy.