The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 27, 2016

Filed:

Dec. 23, 2013
Applicants:

Samsung Electronics Co., Ltd., Gyeonggi-do, KR;

The University of Tokyo, Tokyo, JP;

Inventors:

Kazuo Iijima, Kanagawa, JP;

Ken Masamune, Tokyo, JP;

Takahiro Tokumiya, Kanagawa, JP;

Siyang Zuo, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 31/00 (2006.01); A61M 25/00 (2006.01); A61M 25/01 (2006.01);
U.S. Cl.
CPC ...
A61M 25/0052 (2013.01); A61M 25/0144 (2013.01); A61M 2025/0003 (2013.01);
Abstract

A medical tube which is highly flexible and has a very small diameter and a flexibility-variable mechanism having the medical tube are provided. The medical tube includes an interior tube and a plurality of annular segments of a cylindrical shape into which the interior tube is inserted. The medical tube is configured by sequentially connecting the plurality of annular segments while the interior tube is inserted inside of the plurality of annular segments. Each annular segment includes a fitting portion that allows any other annular segment to be fitted to the annular segment, and a fitted portion which may be fitted on the fitting portion of any other annular segment, which has a diameter that increases toward an end of the annular segment and includes at least one slit extending in a direction crossing a diametric direction. When the spacing of the slit is narrowed, the fitting portion of the annular segment and the fitted portion of any other annular segment are engaged with each other so that the annular segments are fixed to each other.


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