Endoscopic mucosal resection and endoscopic submucosal dissection for early gastric cancer: Current and original devices

Figure 1 Irrigation prelooped cap.

Figure 2 The 2-channel soft prelooped hood.

Figure 3 The internally retained snare (IRS) cap. A: Photograph; B: Schema.

Figure 4 EAMC hood. A: Placed at the tip of the endoscope and outside-CCD camera; B: Schema of endoscope with EAMC hood. EAMC: endoscopic aspiration mucosectomy and closure.

Figure 5 Vibration hood at the tip of the endoscope.

Figure 6 The 1-channel camera-hood. A: Placed at the tip of the endoscope; B: Schema of the 1-channel camera-hood (B); C: Schematic representation of endoscopic mucosal resection (EMR) using the 1-channel camera-hood.

Figure 7 Irrigation hood knife. A: Photo; B: Schematic representation of endoscopic submucosal dissection (ESD) using the hood-knife.

Figure 8 Cap-knife attachment (Type KUME) with a fixed snare placed on the tip of the endoscope through grasping forceps.

Figure 9 The irrigation wiper-knife. A: Photo; B: Schema of a needle-knife moving like a windshield wiper (both ends red arrow); C: Schematic representation of the ESD using the wiper-knife.

Figure 10 Vibration endoscope.

Figure 11 Irrigation cap (Type KUME) placed on the tip of the endoscope through clipping device.

Figure 12 Coagula-irrigation hood (CI hood).

Figure 13 Endoscopic fan device. A: Blowing type; B: Ventilation type.