Resource-generating dialysis system

Patent metadata

Field	Value
Publication number	US-11701456-B2
Application number	US-202016820153-A
Country	US
Kind code	B2
Filing date	Mar 16, 2020
Priority date	Dec 31, 2015
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

Abstract

A dialysis system (e.g., a hemodialysis (HD) system) can be designed to operate in alternative environments, such as disaster relief settings or underdeveloped regions. The dialysis system can include a solar panel for generating electricity to power the dialysis machine and an atmospheric water generator for extracting water from ambient air. The extracted water can be used to generate dialysate and saline on-site. One or more of the components of the dialysis machine can be discrete components that are configured to facilitate fast shipping and simple on-site assembly (e.g., at a remote location). In some implementations, the discrete components may be configured to be attached to an existing dialysis system (e.g., a dialysis system designed for operation in a traditional environment) to permit the dialysis system to operate in an alternative environment.

First claim

What is claimed is:

1. A hemodialysis machine comprising:
a blood pump configured to pump blood to and from a patient;
an electrical interface;
a power source configured to connect to the electrical interface and provide electricity;
an atmospheric water generator configured to be powered by the generated electricity and configured to extract water from ambient air and pump a first portion of the extracted water to a mixing chamber;
the mixing chamber configured to mix one or more substances with the first portion of the extracted water to generate dialysate; and
a dialyzer configured to receive the blood and the dialysate, remove toxins from the blood, and provide filtered blood to the patient,
wherein in a first configuration, the hemodialysis machine operates in an emergency mode using the power source, the atmospheric water generator, and the mixing chamber, and
wherein in a second configuration, the hemodialysis machine operates in a clinic mode in which the power source, the atmospheric water generator, and the mixing chamber are removed and in which the electrical interface is connected to a power outlet, and the dialyzer receives the dialysate from a dialysate supply line.

2. The hemodialysis machine of claim 1 , further comprising a sorbent device configured to remove toxins from spent dialysate flowing from the dialyzer.

3. The hemodialysis machine of claim 1 , further comprising a battery configured to store a charge derived from the generated electricity.

4. The hemodialysis machine of claim 1 , further comprising a water heater configured to heat the extracted water.

5. The hemodialysis machine of claim 4 , wherein the water heater comprises a container for storing heated water.

6. The hemodialysis machine of claim 4 , wherein the water heater comprises a second power source.

7. The hemodialysis machine of claim 1 , wherein the blood pump comprises a mechanical component that is configured to be manually operated.

8. The hemodialysis machine of claim 7 , wherein the mechanical component comprises one or both of a hand pump and a foot pump.

9. The hemodialysis machine of claim 7 , wherein the mechanical component is configured to generate electricity in response to manual operation of the blood pump.

10. The hemodialysis machine of claim 9 , further comprising a battery configured to store a charge derived from the electricity generated by one or both of the mechanical component and the power source.

11. The hemodialysis machine of claim 1 , wherein the blood pump comprises one or more valves configured to control a flow rate of the blood pumped to and from the patient.

12. The hemodialysis machine of claim 1 , further comprising a forward osmosis container that comprises:
a first compartment configured to store a salt concentrate;
a second compartment configured to receive the extracted water; and
a membrane that separates the first compartment from the second compartment, the membrane configured to allow the extracted water to mix with the salt concentrate to produce a saline solution.

13. The hemodialysis machine of claim 12 , wherein the forward osmosis container further comprises one or more conductivity sensors configured to ensure that the salt concentrate has a salt concentration commensurate with saline solution.

14. The hemodialysis machine of claim 1 , further comprising a sorbent device configured to (i) remove toxins from spent dialysate flowing from the dialyzer to produce recycled dialysate, and (ii) provide the recycled dialysate to the dialyzer for further cleansing of the blood of the patient.

15. The hemodialysis machine of claim 1 , wherein the power source is a mechanical actuated power source or a battery power source.

Assignees

• Fresenius Medical Care Holdings Inc

Inventors

• Caluya Roger
• Crnkovich Martin Joseph
• Egley Bert D
• Griffith Jr David Charles
• Levin Roland
• Nasseri Houssein
• Plahey Kulwinder S
• Yuds David

Classifications

• A61M1/1656 Primary

  Apparatus for preparing dialysates · CPC title

• A61M1/16

  with membranes · CPC title

• A61M1/166

  Heating (for sterilisation A61M1/1686) · CPC title

• A61M1/167

  Flexible packaging for solid concentrates · CPC title

• A61M1/1666

  by dissolving solids · CPC title