Robert E. Ailinger,James J. Frassica,Richard M. Andrews,Hiroaki Miyoshi
申请号：
US14980987
公开号：
US20160100744A1
申请日:
2015.12.28
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A spiral unit into which an insertion section of an introduction apparatus having a longitudinal axis is to be inserted, and is rotatable to the insertion section in a state of being disposed on the insertion section, includes a regulator which is removably arranged in a tubular section, holds a state of expanding an inner diameter of the tubular section to regulate reduction of the inner diameter of the tubular section.
