Prospective single-center feasible study of innovative autorelease bile duct supporter to delay adverse events after endoscopic papillectomy

Figure 1 Endoscopic views of endoscopic papillectomy and autorelease biliary supporter placement in a patient with a laterally spreading tumors of the major duodenal papilla. A: Duodenal papilla tumor was examined by duodenoscopy with indigo carmine staining; B: Submucosal injection was performed to lift the lesion; C: Muscularis propria wound after piecemeal submucosal resection with duodenal papilla; D: The wound was closed with endoscopic hemoclips, and the novel autorelease bile stent was inserted via a guide wire by endoscopic retrograde cholangiopancreatography; E: Fibrin glue was sprayed to cover the wound; F: Specimen of piecemeal papilla polypectomy; G: X-ray image showed autorelease biliary stents were successfully placed; H: The autorelease biliary supporter fell off naturally and arrived in colon about 10 d after this operation.

Figure 2 The novel autorelease bile supporter was inserted through a guide wire using endoscopic retrograde cholangiopancreatography.