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A, Integrated electric motor of the novel enteroscope. B, Disposable short spiral overtube and rotation coupler of the insertion tube. C, The spiral overtube is connected to the rotation coupler. D, Prototype spiral enteroscope ready for use. E, Spiral rotation force indicator. F, Insertion of spiral portion of the endoscope. G, Detection of arteriovenous malformation of the jejunum during spiral enteroscopy. H, Treatment of arteriovenous malformation by argon plasma coagulation.
