Comparison of a portable disposable large-channel gastroscope and a conventional reusable gastroscope in gastric endoscopic submucosal dissection

Figure 1 Portable disposable large-channel endoscope system (model HG-GS100). In this figure, the main components of the portable disposable large-channel endoscope system are shown. The endoscopic host is responsible for powering and controlling the endoscope. The disposable large-channel gastroscope has a distinct structure. The outer diameter of the gastroscope is 9.8 mm, and the channel inner diameter is 3.4 mm with a length of 1450 mm. The tip of the gastroscope contains important components such as the light-emitting diode for illumination, the camera for image capture, and the working channel through which various endoscopic tools can be inserted. The bending section of the endoscope allows for flexible maneuverability during the examination, with an up-bending angle of 180° and down, left, and right bending angles of 160°. These components work in concert to enable effective endoscopic procedures.