Flexible tube and insertion device

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专利权人:

发明人:

Kenichiro Saito,Takahiro Kishi,Naoyuki Hoshi

申请号：

US15602556

公开号：

US10156304B2

申请日:

2017.05.23

申请国别(地区):

US

年份:

2018

代理人:

摘要：

A flexible tube includes an envelope, a spiral tube and a built-in component. The spiral tube includes a first area portion and a second area portion. The spiral tube is under an initial tension throughout the overall length, and the built-in component includes a supplement area portion which supplements the elasticity of the spiral tube.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/