# US 12,758,696 B2 · Automated peritoneal dialysis device, system and method of customizing dialysate solutions

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- Number: US 12,758,696 B2
- Document ID: US12758696B2
- Status: Granted
- Kind: B2
- Application number: 18/614,836
- Filed: 2024-03-25
- Published: 2024-08-01
- Granted: 2026-10-13
- Earliest claimed: 2019-08-09
- Assignees: Simergent LLC
- Applicants: Simergent LLC
- Inventors: Steve J. Lindo; Richard A. Pendergraft; Jacob Henderson
- Web page: https://patentgrep.com/patent/US12758696B2

## CPC

- A61M 1/287: {Dialysates therefor}
- A61M 1/155: {with treatment-fluid pumping means or components thereof}
- A61M 1/1565: {Details of valves}
- A61M 1/159: {specially adapted for peritoneal dialysis}
- A61M 1/1605: {Physical characteristics of the dialysate fluid}
- A61M 1/1654: {Dialysates therefor}
- A61M 1/1656: {Apparatus for preparing dialysates}
- A61M 1/267: {used for pumping}
- A61M 1/282: {Operational modes}
- A61M 1/285: {Catheters therefor}
- A61M 2205/121: interface between cassette and base
- A61M 2205/125: with incorporated filters
- A61M 2205/128: with incorporated valves
- A61M 2205/52: with memories providing a history of measured variating parameters of apparatus or patient
- G01F 22/02: involving measurement of pressure
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- G01F: MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME

## Abstract

An automated peritoneal dialysis (APD) device, system and method is provided, which utilizes mechanisms to admix customized dialysate solutions from multiple sources, while maximizing volumetric accuracy. The present automated peritoneal dialysis (APD) device can accomplish these goals all within the convenience and comfort of the patient's home utilizing filtered tap water.

## Claims

### Claim 1

A method for determining an appropriate peritoneal dialysis prescription tailored to meet treatment needs of a patient, the method comprising the steps of;
providing an input computing device configured for receiving health parameters of the patient;
inputting the patient health parameters into the computing device;
providing at least one bag containing an electrolyte solution;
calculating a concentration of electrolytes from the electrolyte solution for a treatment solution based on the patient health parameters at a time of treatment;
inputting the calculated concentration of electrolytes from the electrolyte solution into an automated peritoneal dialysis (APD) device;
mixing the concentration of electrolytes in the APD device into the treatment solution suitable for administration to the patient;
administering the treatment solution to the patient,
wherein the method further includes removing a determined quantity of sodium from the patient's bloodstream at the time of each treatment based on the patient health parameters.

### Claim 2 (depends on 1)

The method of claim 1, wherein the electrolytes are at least one of sodium or potassium.

### Claim 3 (depends on 1)

The method of claim 1, wherein the method further includes providing a bag containing a dextrose solution.

### Claim 4 (depends on 3)

The method of claim 3, wherein the method further includes using the input computing device to calculate an amount of a dextrose concentration to deliver to the patient based on a sodium concentration.

### Claim 5 (depends on 4)

The method of claim 4, wherein the input computing device automatically adjusts the dextrose concentration higher when a lower sodium concentration is selected.

### Claim 6 (depends on 5)

The method of claim 5, wherein the method further includes maintaining an osmotic gradient by adjusting the dextrose concentration as a function of the sodium concentration.

### Claim 7 (depends on 3)

The method of claim 3, wherein the method further includes using the input computing device to calculate a dextrose concentration to deliver to the patient based on a potassium concentration.

### Claim 8 (depends on 7)

The method of claim 7, wherein the input computing device automatically adjusts the dextrose concentration lower when a higher potassium concentration is selected.

### Claim 9 (depends on 8)

The method of claim 8, wherein the method further includes maintaining an osmotic gradient by adjusting the dextrose concentration as a function of the potassium concentration.

### Claim 10

A method for determining an appropriate peritoneal dialysis prescription tailored to meet treatment needs of a patient, the method comprising the steps of:
providing an input computing device configured for receiving health parameters of the patient;
inputting the patient health parameters into the computing device;
providing at least one bag containing an electrolyte solution;
calculating a concentration of electrolytes from the electrolyte solution for a treatment solution based on the patient health parameters at a time of treatment;
inputting the calculated concentration of electrolytes from the electrolyte solution into an automated peritoneal dialysis (APD) device;
mixing the concentration of electrolytes in the APD device into the treatment solution suitable for administration to the patient;
administering the treatment solution to the patient,
wherein the method includes adding a determined quantity of potassium to the patient's bloodstream at the time of each treatment based on the patient health parameters.