Title:
JUNCTION STRUCTURE AND BIOPSY NEEDLE
Document Type and Number:
WIPO Patent Application WO/2015/186746
Kind Code:
A1
Abstract:
Provided is a junction structure or the like with which it possible to firmly join together tubes formed of mutually different metals or alloys. A junction structure is equipped with a needle tube (63) made of a first metal or alloy, a needle (62) made of a second metal or alloy different from the first metal or alloy, a coupling member (66) forming a cylinder inside which a passage (66a) into which the needle tube (63) and the needle (62) can be inserted is provided, the coupling member (66) being provided on a side surface with a through hole (66b) penetrating from the outer portion of the coupling member (66) to the passage (66a), and a brazing material (67) injected from the through hole (66b) in a state in which the end surfaces of the needle tube (63) and the needle (62) are in contact in the passage (66a) for joining the coupling member (66) to the needle tube (63) and the needle (62); the second metal or alloy is more readily oxidized than the first metal or alloy during soldering using the brazing material (67), and the contact position of the needle tube (63) and the needle (62) is located on the needle (62)-side from the through hole (66b) along the direction in which the needle tube (63) and the needle (62) extend.
Inventors:
SUIGETSU NAOKI (JP)
HOSODA CHIE (JP)
HOSODA CHIE (JP)
Application Number:
PCT/JP2015/066062
Publication Date:
December 10, 2015
Filing Date:
June 03, 2015
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B10/04; B23K1/00; B23K1/18; B23K1/19; B23K101/04; B23K103/24
Foreign References:
| JPS5132453A | 1976-03-19 | |||
| JPH0489149A | 1992-03-23 | |||
| JPH11209850A | 1999-08-03 | |||
| JP2008523909A | 2008-07-10 |
Other References:
See also references of EP 3153106A4
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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