2025-01-17
Flexible endoscopes: generally consist of the following basic configurations: anterior portion, curved portion, insertion tube, maneuvering portion, eyepiece portion, and imaging interface portion. The anterior portion is the rigid portion with multiple chambers and windows on the end face, which are the outlet holes for water and gas delivery, biopsy forceps outlet holes, objective lenses, and light guide windows. The water and gas supply is a common outlet, when injecting gas, the gas enters the body cavity through this hole to expand the cavity; when injecting water, the water comes out from this hole to rinse the surface of the objective lens and the surgical field, so that the field of view remains clear. Negative pressure suction and biopsy forceps exit hole is the same orifice, when there is too much liquid in the cavity to prevent observation, press the suction button, the liquid can be sucked into the suction bottle through this hole; biopsy forceps and other treatment instruments also enter the body cavity through this hole. The bending part is located between the front end and the insertion tube, and consists of a number of ring-like parts to form a snake tube, and each pair of neighboring ring-like parts can be used in all directions between the activities. The insertion tube, also called the mirror body or hose section, contains various types of pipes and wires. The maneuvering section includes an angle control knob, suction valve button, water and air supply button, and biopsy tube opening, where the operator can operate various buttons to complete the endoscopic examination and treatment.
