GRIPPING APPARATUS FOR PLUG SEALING MEMBER AND INDWELLING DEVICE FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a gripping apparatus for a sealing plug member and its indwelling device capable of securely gripping the sealing plug member at a desired position.

SOLUTION: A gripping apparatus 10 for a sealing plug member comprises an end part 10a and the other end part 10b, which is a tubular body of an almost fixed first outer diameter D1, and an expansible one when a power to radially expand from an inside of the tubular body is applied. The other end part 10b expands to a second outer diameter D2 that is larger than the first outer diameter D1 and the end part 10a expands a little larger than the first outer diameter D1 or virtually keeps it when the power to radially expand from the inside of the tubular body is applied. A sealing plug member gripping part 11 is provided on the end part 10a or an intermediate part 10c between the end part 10a and the other end part 10b.

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