MODULAR DIALYSIS SYSTEM

• US 20110189048A1
• Filed: 12/03/2010
• Published: 08/04/2011
• Est. Priority Date: 12/05/2009
• Status: Abandoned Application

• Current Assignee: Outset Medical, Inc.
• Original Assignee: Outset Medical, Inc.
• Inventors: Baker, Michael, Smejtek, Dalibor Jan, Curtis, James R.
• Application Number:
  US12/960,373
• Publication Number:
  US 20110189048A1
• Time in Patent Office: Days
• US Class Current: 422/3
• CPC Class Codes: A61M 1/14 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 Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 2209/08 Supports for equipment
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 40/63 for local operation

Abstract

A dialysis system includes a plurality of modular components. The modular components can be coupled to one another in various configurations, wherein each configuration is optimized for use in a particular environment, such as in a home environment or a travel environment or a dialysis center.

Claims

1. A modular dialysis system, comprising:

a plurality of modules adapted to be operatively removably coupled together to collectively form a dialysis system capable of performing a dialysis procedure on a patient, the modules including;

a user interface module comprising at least one user input element and at least one display element;

a water treatment module comprising water treatment components configured to treat water for use in the dialysis procedure; and

a dialysis module comprising components configured to perform dialysis.

2. The system of claim 1, wherein the water treatment module is configured to prepare dialysate.

3. The system of claim 2, wherein the water treatment module is adapted to deliver dialysate to the dialysis module when the water treatment module is attached to the dialysis module.

4. The system of claim 1, wherein the dialysis module removably attaches to the water treatment module via plumbing connections.

5. The system of claim 3, wherein the dialysis module stacks on top of the water treatment module and the weight of the dialysis module provides a secure coupling between the plumbing connections.

6. The system of claim 1, wherein the dialysis module includes a dialyzer flow balancer that controls flow of dialysate to the dialyzer.

7. The system of claim 1, wherein the user interface module couples to at least one of the other modules via a wired connection.

8. The system of claim 1, wherein the user interface module couples to at least one of the other modules via a wireless connection.

9. The system of claim 1, further comprising a sanitation module adapted to provide a sanitizing solution to the other modules.

10. The system of claim 1, wherein the dialysis module comprises a dialyzer.

11. A sanitation module for sanitizing a flow stream of a dialysis system, comprising;

a sanitizing solution including a sanitizing agent and a tracer agent, the sanitizing solution adapted for sanitizing the flow stream of the dialysis system; and

a conductivity sensor within the flow stream, the tracer adapted to provide the detection by the conductivity sensor of the presence of sanitizing solution in the flow stream of the dialysis system.

12. The sanitation module of claim 11, wherein the tracer agent is sodium chloride.

13. A dialysis system, comprising:

a water supply system;

a dialysate handling system; and

a sanitation module, the water supply system adapted to supply filtered water to the dialysate handling system, wherein the dialysate handling system comprises a supply module, a mixer module, a concentrate control module, and a dialysate module, the dialysate module including an acid concentrate module, a bicarbonate concentrate module, and a sodium chloride concentrate module, the dialysate handling system adapted to prepare the dialysate to a predetermined chemistry and supply the dialysate to a dialyzer, the supply module adapted to supply a diluted acid solution to the supply module, the bicarbonate concentrate module adapted to supply bicarbonate to the mixer module, the sodium chloride concentrate module of the dialysate module adapted to provide a sodium chloride solution to the mixer module, the mixer module adapted to supply dialysate to the dialyzer, a pH sensor provided in the flow stream after the supply module adapted to communicate pH data to the concentrate control module, the concentrate control module adapted to control the acid concentrate module so as to adjust the pH of the solution exiting the supply module to a predetermined value, an alkalinity sensor provided in the flow stream within the mixer module adapted to communicate total alkalinity to the concentrate control module, the concentrate control module adapted to control the bicarbonate concentrate module so as to adjust the total alkalinity of the solution exiting the mixer module to a predetermined value, a conductivity sensor provided after the mixer module adapted to communicate sodium chloride concentration to the concentrate control module, the concentrate control module adapted to control the sodium chloride concentrate module so as to adjust the sodium chloride concentration of the solution exiting the mixer module to a predetermined value, the sanitation module including a sanitizing solution, the sanitizing solution comprising a sanitizing agent and a tracer agent, the sanitation module adapted to supply the sanitizing solution to the mixer module, the sanitizing agent adapted to sanitize the flow stream of the dialysis system, the conductivity sensor adapted to detect the presence of the tracer agent during a sanitizing and rinse process.

14. The dialysis system of claim 13, wherein the tracer agent is sodium chloride.

15. The dialysis system of claim 13, wherein the sanitizing agent comprises sodium hypochlorite.

16. A method for sanitizing a flow stream of a dialyzer system comprising:

providing a predetermined sanitizing solution comprising a sanitizing agent and a tracer agent into a respective flow stream for a predetermined amount of time suitable for sanitizing the flow stream;

providing purified water to the respective flow stream for a predetermined amount of time suitable for flushing out the sanitizing solution from the respective flow stream;

using an electrical conductivity sensor in the flow stream for detecting the presence of the tracer agent, the duration of providing the sanitizing solution predetermined wherein the electrical conductivity sensor detects a predetermined concentration of the tracer agent in the flow stream signifying that sanitizing solution of sufficient concentration is present in the respective flow stream; and

using the electrical conductivity sensor in the flow stream for detecting the presence of the tracer agent, the duration of providing the purified water predetermined wherein the electrical conductivity sensor detects a predetermined concentration of the tracer agent in the flow stream signifying that sanitizing solution is sufficiently rinsed from the respective flow stream.

17. The method of claim 16, wherein providing a predetermined sanitizing solution comprising a sanitizing agent and a tracer agent comprises providing a predetermined sanitizing solution comprising sodium hypochlorite and sodium chloride.