Medical connector

Patent metadata

Field	Value
Publication number	US-11633585-B2
Application number	US-201916562245-A
Country	US
Kind code	B2
Filing date	Sep 5, 2019
Priority date	Mar 22, 2017
Publication date	Apr 25, 2023
Grant date	Apr 25, 2023

Abstract

A medical connector that allows ventilation of vapor used in vapor sterilization and has an internal flow route that is tightly closable without using any separate clamping device. A medical connector includes a body having an internal flow route connected to an other flow route, proximal portions included in the body and having respective one-side connection ports at which the internal flow route is connectable to the one flow route, a distal portion having an other-side connection port at which the internal flow route is connectable to the other flow route, one-side lid portion, and an other-side lid portion whose state is switchable between a closing state and a ventilating state in which the other-side lid portion covers the other-side connection port such that ventilation is allowed.

First claim

The invention claimed is:

1. A medical connector to be provided between and connectable to one flow route and an other flow route through which liquid is allowed to flow, the medical connector comprising:
a body having an internal flow route through which the liquid flowing in the one flow route is allowed to flow into the other flow route;
a proximal portion included in the body and having a one-side connection port at which the internal flow route is connectable to the one flow route;
a distal portion included in the body and having an other-side connection port at which the internal flow route is connectable to the other flow route;
a plurality of lids, at least one of the plurality of lids comprising:
a one-side lid portion with which the one-side connection port is closable; and

at least one of the plurality of lids comprising:
an other-side lid portion whose state is switchable between a closing state in which a first side of the other-side lid portion is in direct contact with and closes the other-side connection port such that the internal flow route is tightly closed and a ventilating state in which a second side of the other-side lid portion is in direct contact with and covers the other-side connection port such that ventilation is allowed through the second side of the other-side lid portion.

2. The medical connector according to claim 1 , wherein a locking portion with which the other-side connection port connected to the other flow route is lockable is provided on an outer periphery of the other-side connection port; and wherein the other-side lid portion in the closing state is tightly in contact with an inner peripheral surface or an outer peripheral surface of the other-side connection port such that the other-side connection port is sealed, and the other-side lid portion in the ventilating state is in contact with the locking portion and covers the other-side connection port such that ventilation is allowed.

3. The medical connector according to claim 2 , wherein the other-side lid portion includes a closing part on the first side that establishes the closing state and a covering part on the second side that establishes the ventilating state; and wherein the covering part has a rib integrally formed on the covering part and with which ventilation through the other-side connection port is allowed.

4. The medical connector according to claim 3 , wherein the medical connector is a manifold including a plurality of proximal portions each of the plurality of proximal portions being a proximal portion of the manifold; and wherein the one-side connection port provided in the plurality of proximal portions are closable with respective one-side lid portions each being the one-side lid portion.

5. The medical connector according to claim 2 , wherein the medical connector is a manifold including a plurality of proximal portions each of the plurality of proximal portions being a proximal portion of the manifold; and wherein the one-side connection port provided in the plurality of proximal portions are closable with respective one-side lid portions each being the one-side lid portion.

6. The medical connector according to claim 1 , wherein the other-side lid portion includes a closing part on the first side that establishes the closing state and a covering part on the second side that establishes the ventilating state; and wherein the covering part has a rib integrally formed on the covering part and with which ventilation through the other-side connection port is allowed.

7. The medical connector according to claim 6 , wherein the other-side lid portion is a cap-like member including the closing part on the first side at one end face and the covering part on the second side at an other end face.

8. The medical connector according to claim 7 , wherein the medical connector is a manifold including a plurality of proximal portions each of the plurality of proximal portions being a proximal portion of the manifold; and wherein the one-side connection port provided in the plurality of proximal portions are closable with respective one-side lid portions each being the one-side lid portion.

9. The medical connector according to claim 6 , wherein the medical connector is a manifold including a plurality of proximal portions each of the plurality of proximal portions being a proximal portion of the manifold; and wherein the one-side connection port provided in the plurality of proximal portions are closable with respective one-side lid portions each being the one-side lid portion.

10. The medical connector according to claim 6 , wherein the rib is located on an inner bottom surface of the covering part and is in contact with an open part of the distal portion.

11. The medical connector according to claim 1 , wherein the medical connector is a manifold including a plurality of proximal portions each of the plurality of proximal portions being a proximal portion of the manifold; and wherein the one-side connection port provided in the plurality of proximal portions are closable with respective one-side lid portions each being the one-side lid portion.

12. The medical connector according to claim 11 , wherein the one flow route includes an arterial blood circuit and a venous blood circuit for causing blood of a patient to extracorporeally circulate; wherein the one-side connection ports include a first one-side connection port connectable to a distal portion of the arterial blood circuit and a second one-side connection port connectable to a distal portion of the venous blood circuit; and wherein the liquid that is caused to flow through the arterial blood circuit and the venous blood circuit is dischargeable from the other-side connection port.

13. A blood circuit in which the arterial blood circuit or the venous blood circuit is connected to the one-side connection port of the medical connector according to claim 12 .

14. The medical connector according to claim 1 , further comprising:
a locking portion with which the other-side connection port connected to the other flow route is lockable is provided on an outer periphery of the other-side connected port, and the other-side lid portion includes a covering part that establishes the ventilating state, wherein the locking portion includes either or both a rugged part in the locking portion or a retaining part in the covering part, and the covering part has a rib integrally formed thereon and with which ventilation through the other-side connection port is allowed.

15. The medical connector according to claim 1 , wherein the state of the other-side lid portion is switchable between the closing state and the ventilating state by turning over the other-side lid portion and attaching it to the distal portion.

16. The medical connector according to claim 1 , wherein a closing part has an inner peripheral surface that is tightly in contact with and seals an outer peripheral surface of the outer side connection port.

17. The medical connector according to claim 1 , wherein the one side-lid portion and other-side lid portion are connected to the body with a band part.

Assignees

• Nikkiso Co Ltd

Inventors

• Sasahara Shigeru
• Ono Kazuhide
• Kato Ryo
• Sugiyama Hironobu

Classifications

• A61M2005/1402

  Priming · CPC title

• A61M39/20 Primary

  Closure caps or plugs for connectors or open ends of tubes · CPC title

• A61M1/3643 Primary

  Priming, rinsing before or after use · CPC title

• A61M2039/1077

  Adapters, e.g. couplings adapting a connector to one or several other connectors · CPC title

• A61M1/3652

  using gas, e.g. air · CPC title