Blood purification device and coupler

Patent metadata

Field	Value
Publication number	US-11850343-B2
Application number	US-201916393044-A
Country	US
Kind code	B2
Filing date	Apr 24, 2019
Priority date	Oct 25, 2016
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

A blood purification device includes: a control device that controls supply of a dialysis solution to a blood purifier; a dialysis solution supply tube in which a dialysis solution flows from the control device toward the blood purifier; a dialysis solution discharge tube in which the dialysis solution flows from the blood purifier toward the control device; a supply side coupler that connects between the dialysis solution supply tube and a dialysis solution inflow pipe of the blood purifier; and a discharge side coupler that connects between the dialysis solution discharge tube and a dialysis solution outflow pipe of the blood purifier. At least one of the supply side coupler and the discharge side coupler includes a light source unit configured to irradiate the interior of the coupler with ultraviolet light.

First claim

What is claimed is:

1. A device for controlling and supplying a dialysis solution to a blood purifier, comprising:
a control device that controls supply of the dialysis solution to the blood purifier;
a dialysis solution supply tube in which the dialysis solution flows from the control device toward the blood purifier;
a dialysis solution discharge tube in which the dialysis solution flows from the blood purifier toward the control device;
a supply side coupler that connects between the dialysis solution supply tube and a dialysis solution inflow pipe of the blood purifier; and
a discharge side coupler that connects between the dialysis solution discharge tube and a dialysis solution outflow pipe of the blood purifier,
wherein the control device comprises:
a coupler holder configured to temporarily hold the supply side coupler detached from the dialysis solution inflow pipe and the discharge side coupler detached from the dialysis solution outflow pipe; and
a power feeding unit for supplying power;
wherein at least one of the supply side coupler and the discharge side coupler comprises:
a light source unit configured to irradiate an interior of the coupler with ultraviolet light; and
a power reception unit configured to receive power from the power feeding unit in a contactless scheme or in a contact scheme while the supply side coupler and the discharge side coupler are being held by the coupler holder,
wherein the power reception unit is configured not to receive power from the power feeding unit while the supply side coupler and the discharge side coupler are detached from the coupler holder,
wherein the light source unit is lighted by using power fed from the power feeding unit when the supply side coupler and the discharge side coupler are being held by the coupler holder and is not lighted when the supply side coupler and the discharge side coupler are detached from the coupler holder, and
wherein a distance between the power feeding unit and the light source unit is configured to change when the supply side coupler and the discharge side coupler are disconnected from the blood purifier and held on the coupler holder, and are disconnected from the couple holder and connected to the blood purifier.

2. The device according to claim 1 , wherein
the control device includes a power feeding terminal provided in the coupler holder, and
the power reception unit includes a power receiving terminal configured to come into contact with the power feeding terminal to establish connection.

3. The device according to claim 1 , wherein
the supply side coupler includes a pipe connection part detachably connected to the dialysis solution inflow pipe,
the discharge side coupler includes a pipe connection part detachably connected to the dialysis solution outflow pipe, and
the light source unit is configured to irradiate the pipe connection part exposed by being detached from the dialysis solution inflow pipe or the dialysis solution outflow pipe with ultraviolet light.

4. The device according to claim 1 , wherein
the control device is configured to perform a cleaning process of circulating a cleaning solution in a route passing through the dialysis solution supply tube, the supply side coupler, the discharge side coupler, and the dialysis solution discharge tube while the supply side coupler detached from the dialysis solution inflow pipe and the discharge side coupler detached from the dialysis solution outflow pipe are connected to each other, and
the light source unit radiates ultraviolet light while the cleaning process is being performed.

5. The device according to claim 1 , wherein
the light source unit is configured to be detachable from a main part of the supply side coupler or the discharge side coupler.

6. The device according to claim 1 , wherein
a main part of at least one of the supply side coupler and the discharge side coupler is provided with a window member that transmits ultraviolet light from the light source unit.

7. The device according to claim 1 , wherein
at least one of the supply side coupler and the discharge side coupler includes a main part, a pipe connection part adjacent to the main part in an axial direction, and a tube connection part extending from the main part in a direction perpendicular to the axial direction so as to form an L shape, and
the light source unit is configured to radiate ultraviolet light in the axial direction from the main part toward the pipe connection part.

8. The device according to claim 1 , wherein
the power feeding unit comprises a coil for supplying power,
the power reception unit comprises a coil for receiving power from the coil of the power feeding unit.

Assignees

• Nikkiso Co Ltd

Inventors

• Mochizuki Hiroaki

Classifications

• A61M1/168 Primary

  Sterilisation or cleaning before or after use · CPC title

• A61L2/10 Primary

  Ultraviolet [UV] radiation · CPC title

• A61L2/26

  Accessories · CPC title

• A61M1/14

  Dialysis systems; Artificial kidneys; Blood oxygenators (semi-permeable membranes characterised by the material, manufacturing processes therefor B01D71/00){; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis} · CPC title

• A61M1/16

  with membranes · CPC title