NEEDLELESS CONNECTOR

Title:

NEEDLELESS CONNECTOR

Document Type and Number:

WIPO Patent Application WO/2013/099261

Kind Code:

A1

Abstract:

Provided is a needleless connector having a novel structure making it possible to effectively implement both stable administration of a drug solution or the like and to prevent backflow of blood or the like by stably and quickly switching between communication and shutoff of a drug solution flow path in a simple structure. A bottomed, cylindrical hollow elastic body (16) that opens toward an outlet side of a drug solution flow path (80) is accommodated and arranged in a accommodation section (20) formed in a housing (12), and a middle protrusion (66) is provided toward an inlet side of the drug solution flow path (80) from a middle portion of a bottom wall (70) of the hollow elastic body (16). Insertion of a male Luer (86) pushes on a distal end of the middle protrusion (66) and causes the bottom wall (70) of the hollow elastic body (16) to be elastically deformed so as to penetrate into a peripheral wall (68), expanding the volume of the drug solution flow path (80), which is formed between an outer surface of the hollow elastic body (16) and an inner surface of the accommodation section (20). Taking out the male Luer (86) and releasing the elastic deformation of the hollow elastic body (16) causes the volume of the drug solution flow path (80) to be reduced.

Inventors:

YAMAGUCHI TAKESHI (JP)
UCHIMURA TOMOHIRO (JP)
ISHIKURA KOHZO (JP)

Application Number:

PCT/JP2012/008371

Publication Date:

July 04, 2013

Filing Date:

December 27, 2012

Export Citation:

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Assignee:

NIPRO CORP (JP)

International Classes:

A61M39/02; A61M39/00

Foreign References:

JP2004275472A	2004-10-07
US20080172003A1	2008-07-17
US5730418A	1998-03-24
JPH08168535A	1996-07-02
JP2006515220A	2006-05-25
US5730418A	1998-03-24

Other References: