# US 10,441,703 B2 · Weight controlled and/or sorbent hybrid blood and peritoneal dialysis treatment systems and methods

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- Number: US 10,441,703 B2
- Document ID: US10441703B2
- Status: Granted
- Kind: B2
- Application number: 15/467,112
- Filed: 2017-03-23
- Published: 2017-07-06
- Granted: 2019-10-15
- Earliest claimed: 2007-07-05
- Assignees: Baxter International Inc.; Baxter Healthcare S.A.
- Applicants: Baxter International Inc.; Baxter Healthcare SA
- Inventors: Gino Cicchello; Christian Bernard; Robert W. Childers; Anthony Simiele
- Web page: https://patentgrep.com/patent/US10441703B2

## CPC

- A61M 1/282: {Operational modes}
- A61M 1/153: {the cassette being adapted for heating or cooling the treating fluid, e.g. the dialysate or the treating gas}
- A61M 1/154: {with sensing means or components thereof}
- A61M 1/155: {with treatment-fluid pumping means or components thereof}
- A61M 1/1561: {at least one cassette surface or portion thereof being flexible, e.g. the cassette having a rigid base portion with preformed channels and being covered with a foil}
- A61M 1/15625: {the reservoirs acting as balance chambers}
- A61M 1/1565: {Details of valves}
- A61M 1/159: {specially adapted for peritoneal dialysis}
- A61M 1/16: with membranes
- A61M 1/1601: {Control or regulation}
- A61M 1/1603: {Regulation parameters}
- A61M 1/1611: {Weight of the patient}
- A61M 1/1639: {linked by membranes}
- A61M 1/168: {Sterilisation or cleaning before or after use}
- A61M 1/1682: {both machine and membrane module, i.e. also the module blood side}
- A61M 1/1686: {by heat}
- A61M 1/1688: {with recirculation of the sterilising fluid}
- A61M 1/169: {using chemical substances}
- A61M 1/1694: {with recirculating dialysing liquid}
- A61M 1/1696: {with dialysate regeneration}
- A61M 1/28: Peritoneal dialysis {; Other peritoneal treatment, e.g. oxygenation}
- A61M 1/284: {Continuous flow peritoneal dialysis [CFPD]}
- A61M 1/288: {Priming (priming in extracorporeal blood circuits A61M1/3643)}
- A61M 1/30: Single needle dialysis {; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis}
- A61M 1/34: Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration
- A61M 1/3417: {using distinct filters for dialysis and ultra-filtration}
- A61M 1/3427: {back through the membrane, e.g. by inverted trans-membrane pressure [TMP]}
- A61M 1/3431: {upstream of the filter}
- A61M 1/3444: {in which the collected ultra-filtrate expels an equal volume of substitution fluid from a reservoir}
- A61M 1/36224: {with sensing means or components thereof}
- A61M 1/36225: {with blood pumping means or components thereof}
- A61M 1/362262: {Details of incorporated reservoirs}
- A61M 1/362265: {Details of valves}
- A61M 60/279: Peristaltic pumps, e.g. roller pumps
- G16H 20/40: relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
- A61M 1/3437: {downstream of the filter, e.g. post-dilution with filtrate}
- A61M 2205/12: with interchangeable cassettes forming partially or totally the fluid circuit
- A61M 2205/128: with incorporated valves
- A61M 2205/3331: Pressure; Flow
- A61M 2205/3344: Measuring or controlling pressure at the body treatment site
- A61M 2205/3368: Temperature
- A61M 2205/3379: Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M 2205/50: with microprocessors or computers
- A61M 2205/502: User interfaces, e.g. screens or keyboards
- A61M 2210/1017: Peritoneal cavity
- 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)}
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system includes: a reservoir; a weigh scale operably coupled with the reservoir; and at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir.

## Claims

### Claim 1

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system comprising:
a reservoir;
a weigh scale operably coupled with the reservoir;
at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir;
a dialysis fluid pumping unit fluidly connected to the reservoir;
an HD cassette configured for connection to the dialysis fluid pumping unit to run at least the fresh and used HD dialysis fluid portion of (i); and
a PD cassette configured for connection to the dialysis fluid pumping unit to run (ii), the PD cassette being interchangeable with the HD cassette for connection to the dialysis fluid pumping unit.

### Claim 2 (depends on 1)

The hybrid HD/PD system of claim 1, further comprising a blood cassette configured to run the blood portion of (i).

### Claim 3 (depends on 2)

The hybrid HD/PD system of claim 2, further comprising a dialysis fluid pumping apparatus configured to operate with either of the HD and PD cassettes.

### Claim 4 (depends on 3)

The hybrid HD/PD system of claim 3, further comprising an additional HD unit configured to run the blood portion of (i).

### Claim 5 (depends on 1)

The hybrid HD/PD system of claim 1, wherein a sorbent and/or carbon filled cartridge is located upstream of the reservoir to clean the used HD dialysis fluid being delivered to the reservoir.

### Claim 6 (depends on 5)

The hybrid HD/PD system of claim 5, wherein the sorbent and/or carbon filled cartridge is located downstream of the dialysis fluid compartment of the dialyzer in (i).

### Claim 7 (depends on 1)

The hybrid HD/PD system of claim 1, wherein the fresh HD dialysis fluid is pumped via a peristaltic pump under control of the at least one controller.

### Claim 8 (depends on 7)

The hybrid HD/PD system of claim 7, wherein the fresh HD dialysis fluid and the fresh PD dialysis fluid are pumped at different times via the same peristaltic pump under control of the at least one controller.

### Claim 9 (depends on 1)

The hybrid HD/PD system of claim 1, wherein the fresh PD dialysis fluid is pumped via a peristaltic pump under control of the at least one controller.

### Claim 10 (depends on 1)

The hybrid HD/PD system of claim 1, wherein blood is pumped via a peristaltic pump under control of the at least one controller.

### Claim 11 (depends on 1)

The hybrid HD/PD system of claim 1, wherein used HD and PD dialysis fluids pumped to the reservoir are weighed by the weigh scale in (i) and (ii), respectively, for analysis by the at least one controller.

### Claim 12 (depends on 11)

The hybrid HD/PD system of claim 11, wherein at least one of the fresh HD dialysis fluid or the fresh PD dialysis fluid is weighed by the weigh scale for analysis by the at least one controller.

### Claim 13 (depends on 12)

The hybrid HD/PD system of claim 12, wherein the at least one of the fresh HD dialysis fluid or fresh PD dialysis fluid is weighed by the weigh scale.

### Claim 14

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system comprising:
a reservoir;
a weigh scale operably coupled with the reservoir;
a sorbent and/or carbon filled cartridge located upstream of the reservoir;
at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer, through the sorbent and/or carbon filled cartridge, to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir;
a dialysis fluid pumping unit fluidly connected to the reservoir;
an HD cassette configured for connection to the dialysis fluid pumping unit to run at least the fresh and used HD dialysis fluid portion of (i); and
a PD cassette configured for connection to the dialysis fluid pumping unit to run (ii), the PD cassette being interchangeable with the HD cassette for connection to the dialysis fluid pumping unit.

### Claim 15 (depends on 14)

The hybrid HD/PD system of claim 14, wherein in (ii) the used PD dialysis fluid is pumped from the patient, through the sorbent and/or carbon filled cartridge, to the reservoir.

### Claim 16 (depends on 14)

The hybrid HD/PD system of claim 14, wherein the sorbent and/or carbon filled cartridge is configured for a single one of the HD treatments.

### Claim 17 (depends on 14)

The hybrid HD/PD system of claim 14, wherein the sorbent and/or carbon filled cartridge is configured for multiple ones of the HD treatments.

### Claim 18

A hybrid hemodialysis (“HD”)/peritoneal dialysis (“PD”) system comprising:
a reservoir;
at least one controller programmed to run (i) an HD treatment in which blood is pumped to a blood compartment of a dialyzer, fresh HD dialysis fluid is pumped to a dialysis fluid compartment of the dialyzer, and used HD dialysis fluid is pumped from the dialysis fluid compartment of the dialyzer to the reservoir, and at a different time (ii) a PD treatment in which fresh PD dialysis fluid is pumped to a patient and used PD dialysis fluid is pumped from the patient to the reservoir;
a pumping unit fluidly connected to the reservoir;
an HD cassette configured for connection to the pumping unit to run at least the fresh and used HD dialysis fluid portion of (i); and
a PD cassette configured for connection to the pumping unit to run (ii), the PD cassette being interchangeable with the HD cassette for connection to the pumping unit.

### Claim 19 (depends on 18)

The hybrid HD/PD system of claim 18, which includes a weigh scale outputting to the at least one controller a weight measurement of the reservoir.

### Claim 20 (depends on 18)

The hybrid HD/PD system of claim 18, wherein the controller is configured to adjust the programming for running at least one of (i) or (ii) based on the weight measurement from the weigh scale.