Connector and transfusion set

Patent metadata

Field	Value
Publication number	US-11065383-B2
Application number	US-201615010562-A
Country	US
Kind code	B2
Filing date	Jan 29, 2016
Priority date	Jul 31, 2013
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A connector provided with a housing which defines an insertion section into which a male connector is inserted from the outside and a flow path communicating with the insertion section and an elastic valve body which has a slit and blocks the insertion section. The housing includes a tip receiving section formed on an inner wall defining the flow path, the tip receiving section receiving a tip of the male connector inserted through the slit of the elastic valve body. The tip receiving section is formed on only a part of the inner wall in a cross section that is perpendicular to an insertion direction of the male connector and includes at least a part of the tip receiving section.

First claim

What is claimed is:

1. A connector comprising:
a housing defining an insertion section configured for a male connector to be inserted therein from outside and a flow path communicating with the insertion section; and
an elastic valve body having a slit and blocking the insertion section;
wherein the housing includes a tip receiving section formed on an inner wall defining the flow path, the tip receiving section configured for receiving a tip of the male connector inserted through the slit of the elastic valve body;
wherein the tip receiving section is formed on only a part of the inner wall in a cross section that is perpendicular to an insertion direction of the male connector such that the tip receiving section extends along less than an entire circumference of the inner wall defining the flow path;
wherein the tip receiving section comprises a plurality of projections projecting toward the flow path in a direction perpendicular to the insertion direction, each of the plurality of projections including a first side and a second side, each of the plurality of projections extending from a base of the projection to an apex of the projection in the direction perpendicular to the insertion direction and toward the flow path;
each of the projections gradually and continuously narrowing from the base of the projection to the apex of the projection; and
wherein the inner wall includes the plurality of projections and at least one circular arc section continuous between the first side of one of the plurality of projections and the first side of another of the plurality of projections in the cross section.

2. The connector according to claim 1 , wherein the tip receiving section is adjacent to the flow path in the cross section.

3. The connector according to claim 1 , wherein each of the plurality of projections includes a tip receiving face, the tip receiving face receiving the tip of the male connector, has an extending section extending in such a manner that a projecting amount toward the flow path in the direction perpendicular to the insertion direction increases toward the insertion direction.

4. The connector according to claim 1 , wherein the housing includes a branch port holding the elastic valve body and defining the flow path, and an upstream port located on one side of the branch port and a downstream port located on the other side of the branch port with the flow path interposed therebetween in a direction perpendicular to the insertion direction of the male connector, and, when the flow path is defined as a first flow path, the upstream port defines a substantially cylindrical second flow path communicating with the first flow path and the downstream port defines a substantially cylindrical third flow path communicating with the first flow path.

5. The connector according to claim 1 , wherein
the housing includes a substantially cylindrical holder main body,
a cock defining a hollow section together with an inner wall of the holder main body is rotatably housed inside the holder main body,
when the flow path is defined as a first flow path, a branch port holding the elastic valve body and defining the first flow path communicatable with the hollow section, an upstream port defining a substantially cylindrical second flow path communicatable with the hollow section, and a downstream port defining a substantially cylindrical third flow path communicatable with the hollow section are disposed on an outer wall of the holder main body, and
the connector is capable of supplying liquid flowing in the second flow path to the third flow path through the hollow section and the first flow path.

6. The connector according to claim 4 , wherein
the housing includes a partition wall dividing the flow path defined by the branch port into two flow paths in the direction perpendicular to the insertion direction of the male connector inserted into the branch port, and
the tip of the male connector and the partition wall are not in contact with each other when the tip receiving section receives the tip of the male connector.

7. The connector according to claim 1 , wherein the tip receiving section receives the tip of the male connector through the elastic valve body.

8. An infusion set comprising the connector according to claim 1 .

9. The connector according to claim 1 , wherein the elastic valve body includes a top face and a bottom face, the slit not extending through the bottom face.

10. The connector according to claim 1 , wherein each of said plurality of projections defines a tip receiving face configured to abut the tip of the male connector.

11. The connector according to claim 10 , wherein the tip receiving face includes a first extending section and a second extending section.

12. The connector according to claim 1 , wherein the connector comprises a stopcock connector.

13. The connector according to claim 1 , wherein the connector comprises a T-connector.

14. The connector according to claim 1 , wherein the connector comprises an inline connector.

15. A connector comprising:
a housing defining an insertion section configured for a male connector to be inserted therein from outside and a flow path communicating with the insertion section; and
an elastic valve body having a slit and blocking the insertion section;
the housing including a tip receiving section formed on an inner wall defining the flow path, the tip receiving section configured for receiving a tip of the male connector inserted through the slit of the elastic valve body;
the tip receiving section being formed on only a part of the inner wall in a cross section that is perpendicular to an insertion direction of the male connector such that the tip receiving section extends along less than an entire circumference of the inner wall defining the flow path;
the tip receiving section comprising a plurality of projections projecting toward the flow path in a direction perpendicular to the insertion direction, each of the plurality of projections including a first side and a second side;
the inner wall including the plurality of projections and at least one circular arc section continuous between the first side of one of the plurality of projections and the first side of another of the plurality of projections in the cross section;
each of the plurality of projections possessing a tip receiving face which receives the tip of the male connector when the male connector is inserted through the slit of the elastic valve body, the tip receiving face extending from a base of the projection to an apex of the projection;
the tip receiving face of each projection comprising a first extending section and a second extending section, the first extending section of each projection extending radially inwardly in a direction away from the inner wall of the housing so that the radially inwardly extending first extending section extends from the base of the projection to the second extending section, the tip receiving face of the second extending section of each projection facing towards the elastic valve body, the second extending section of each projection extending radially inwardly in a direction away from the inner wall of the housing so that the second extending section extending radially inwardly extends from the first extending section to the apex of the projection, the second extending section of each projection intersecting the first extending section of the respective projection at an angle; and
the first extending section of each projection and the elastic valve body being configured so that when the male connector is inserted through the slit of the e

Assignees

• Terumo Corp

Inventors

• Ueda Yasuhiro

Classifications

• A61M39/223 Primary

  Multiway valves · CPC title

• A61M2039/2426

  Slit valve · CPC title

• A61M2039/1083

  having a plurality of female connectors, e.g. Luer connectors · CPC title

• A61M2039/1088

  having a plurality of male connectors, e.g. Luer connectors · CPC title

• A61M2039/1072

  with a septum present in the connector · CPC title