TREATMENT INSTRUMENT INSERTION ASSISTING TOOL
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United States of America Patent
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app pub date -
Oct 19, 2016
filing date -
Sep 9, 2014
priority date (Note) -
Abandoned
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Abstract
A treatment instrument insertion assisting tool is provided with: a connection portion configured to be connected to a channel of a tool inserted into a subject; an introduction port for a treatment instrument inserted into the channel via the connection portion; a cylindrical guiding portion tapered from the introduction port to the connection portion; and a plurality of recess portions provided on an outer circumferential edge of the introduction port, each of the recess portions having such a shape that gradually increases in width from the connection portion side toward the introduction port side and that is recessed toward the connection portion side.
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