Title:
分岐管
Document Type and Number:
Japanese Patent JP6831955
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a branch pipe which is connected to a tubular member, in which one of branching passages is a chemical solution circulation passage and the other is an insertion passage of an introduced object to a tubular member lumen, and which can easily incorporate the introduced object without damaging the introduced object at the time of incorporating the introduced object into the tubular member through the insertion passage.SOLUTION: A branch pipe which becomes a connection part with a tubular member having the tip introduced into the body, and in which a chemical solution passage and an insertion passage of an introduced member are formed by branching a lumen from the tip side to the base end side is configured that a plurality of rows of recessed surfaces 1112 and projection surfaces 1111 are alternately provided in the axial direction in the entire part or a portion of the insertion passage of the introduced member, the protrusion surface is made to be a contact part with the introduced member and the recessed surface is made to be a non-contact part. The insertion passage of the introduced member includes: a first inner diameter portion 1110 which is set to the branch part side; a second inner diameter portion 1120 which is set to the opening side and is formed to be a larger diameter than the first inner diameter portion; and a tapered portion 1130 which connects the first and second inner diameter portions.SELECTED DRAWING: Figure 2
Inventors:
Nakazawa Takaki
Application Number:
JP2016205646A
Publication Date:
February 24, 2021
Filing Date:
October 20, 2016
Export Citation:
Assignee:
Hakko Co., Ltd.
International Classes:
A61M25/00; A61M25/06; A61M25/08; A61M39/00
Domestic Patent References:
| JP2000014791A | ||||
| JP7163666A | ||||
| JP2000140121A | ||||
| JP2016067455A |
Foreign References:
| WO2009091018A1 | ||||
| US5507732 |