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Endoscopic system and method for positioning an indwelling tube

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TLDR
An endoscope including a fixing member detachably mounted to a distal end portion of an endoscope insertion part for detachably fixing and holding an indwelling tube or a guide member for guiding the insertion part is described in this paper.
Abstract
An endoscope including; a fixing member detachably mounted to a distal end portion of an endoscope insertion part for detachably fixing and holding a distal end portion of an indwelling tube or a distal end portion of a guide member for guiding the indwelling tube, both of which are provided along the axial direction of the insertion part, to the distal end portion of the insertion part.

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References
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TL;DR: An endoscope (E, E', E'') has a sterilizable, reusable, elongated, optical capsule section (C, C') and a separable, disposable, sterile channel section (S), which is removable after use as discussed by the authors.
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