Medical fluid cassettes and related systems

Patent metadata

Field	Value
Publication number	US-11826503-B2
Application number	US-201816762281-A
Country	US
Kind code	B2
Filing date	Nov 13, 2018
Priority date	Nov 13, 2017
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

Systems relate to a reusable console system that can be used with a plurality of different types of disposable cassettes. The cassettes may be structured for different therapies, different fluid volumes, among others, or a combination thereof. The disposable cassette may include a plurality of fluid circuits. Each circuit may include a pump chamber disposed along the path. The disposable cassette and the panel of a console may be configured to mate so that each of the one or more actuators of the console align with a pump chamber of the disposable cassette. The console may be configured to control a flow of the fluid in the path in the cassette when the disposable cassette is mated on the panel. Because the console can be mated with different cassettes, the system can efficiently and accurately deliver different medical fluid therapies and/or different patient populations (e.g., pediatric and adult).

First claim

What is claimed is:

1. A medical fluid therapy delivery system, comprising:
a console configured to provide multiple medical fluid treatment types, the console having a panel, the console including a first combination of a first actuator and a first pair of pinch valves and a second combination of a second actuator and second pair of pinch valves, wherein the first actuator and the second actuator are disposed between a first pinch valve and a second pinch valve of the first pair of pinch valves and the second pair of pinch valves respectively, the first and second actuators configured to move with respect to the panel; and
a first disposable cassette configured to mate with the first combination and a second disposable cassette configured to mate with the second combination, the first disposable cassette structured for a first medical fluid treatment type and the second disposable cassette structure for a second medical treatment type different from the first medical fluid treatment type, wherein each disposable cassette includes a plurality of fluid circuits, each fluid circuit includes a path being defined by one and more inlets and outlets in which a fluid flows, and a pump chamber disposed between a first valve receiving member and a second valve receiving member along the path;
wherein the panel is configured to mate separately with both of the first and the second disposable cassettes so that:
the first actuator of the first combination aligns with a first pump chamber of the first disposable cassette and the first pair of pinch valves align and interface with the corresponding first valve receiving member and the second valve receiving member of the first disposable cassette; and
the second actuator of the first combination aligns with a second pump chamber of the second disposable cassette and the second pair of pinch valves align and interface with the corresponding first valve receiving member and the second valve receiving member of the second disposable cassettes,

wherein the console is configured to control the movement of the actuators and the first and the second pinch valves of each combination to control a flow of the fluid in the path when the disposable cassettes and the panel are mated.

2. The system according to claim 1 , wherein:
each of the disposable cassettes includes one or more pressure sensors disposed along the path of one or more fluid circuits and an electrical communication interface that communicates with each pressure sensor;
the console includes one or more fluid sensors to measure fluid characteristics of the flow along the path of one or more fluid circuits and an electrical communication interface that is complimentary to the electrical communication interface of the disposable cassette; and
when either the first or the second disposable cassette and the panel are mated, the electrical communication interface of the first or the second disposable cassette is configured to transmit the pressure to the console via the electrical communication interface of the console.

3. The system according to claim 1 , further comprising:
a filter; and
one or more containers;
wherein when either the first or the second the disposable cassette and the panel are mated, the first or the second disposable cassette is configured to be disposed on the panel between the filter and the one or more containers so that the filter and the one or more containers are disposed adjacent to a first side and a second side of the first or the second disposable cassette, respectively.

4. The system according to claim 3 , further comprising:
a dialysate circuit configured to connect to the filter.

5. The system according to claim 3 , wherein:
each fluid circuit is configured for unidirectional fluid flow along the path; and
the fluid circuits include a blood circuit, an ultrafiltrate circuit, a replacement fluid circuit and a return circuit.

6. The system according to claim 5 , wherein the blood circuit includes an inlet and an outlet disposed on the first side.

7. The system according to claim 5 , wherein a length of the path of the blood circuit is shorter than a length of the paths of the ultrafiltrate circuit, the replacement fluid circuit and the return circuit.

8. The system according to claim 5 , wherein the fluid circuits are disposed with respect to the top of the first or the second disposable cassette when mated with the console as follows: the blood circuit, the ultrafiltrate circuit, the replacement fluid circuit and the return circuit.

9. The system of according to claim 1 , wherein the first disposable cassette is structured for use with an adult and the second disposable cassette is structured for use with a child.

10. A medical fluid therapy delivery system configured to apply multiple types of fluid renal treatment, comprising:
a console comprising:
a panel including a plurality of combinations of an actuator and a pair of pinch valves, the actuators configured to move with respect to the panel; and
an identification reading device; and

a plurality of disposable cassettes configured to mate with the panel of the console, wherein each of the plurality of disposable cassettes are configured for different fluid renal treatment types, wherein each of the plurality of the disposable cassettes comprises:
a plurality of fluid circuits, each fluid circuit includes a path being defined by one and more inlets and outlets in which a fluid flows;
a pump chamber disposed between a first valve receiving member and a second valve receiving member along the path; and
an identification device used to identify the type of fluid renal treatment for which the disposable cassette is configured for use,

wherein the panel is configured to mate separately with the plurality of disposable cassettes, and wherein the identification reading device is configured to read the identification device of each disposable cassette to determine the fluid renal treatment for the console to perform.

11. The medical fluid therapy delivery system of claim 10 , wherein the plurality of fluid circuits of each disposable cassette corresponds to the type of fluid renal treatment.

12. The medical fluid therapy delivery system of claim 10 , wherein the identification device is an RFD.

13. The medical fluid therapy delivery system of claim 10 , wherein the console further comprises a main controller in communication with the identification reading device, wherein upon receiving the identification of the type of the type of fluid renal treatment associated with the disposable cassette, the main controller is configured to automatically set up the treatment parameters for the fluid renal treatment.

14. The medical fluid therapy delivery system of claim 10 , wherein each disposable cassette further comprises a pump chamber, wherein at least one of the plurality of combination of actuators and pinch valve pairs is configured to align with the pump chamber of the disposable cassette, wherein based upon the identification of the disposable cassette mated with the panel, the console is further configured to control the movement of the actuator and the first and the second pinch valves to control a flow of the fluid in the path when the disposable cassette and the panel are mated.

15. The medical fluid therapy delivery system of claim 10 , wherein the multiple fluid renal treatment therapy comprises continuous renal replacement therapies (CRRTs).

16. The medical fluid therapy delivery system of claim 15 , wherein the CRRTs comprise slow continuous ultrafiltration (SCUF) therapy, continuous veno-venous hemofilt

Assignees

• Georgia Tech Res Inst
• Univ Emory
• Childrens Healthcare Atlanta Inc

Inventors

• Paden Matthew
• Arjunon Sivakkumar
• Yoganathan Ajit
• Walsh Brian

Classifications

• A61M1/306 Primary

  Pressure control, e.g. using substantially rigid closed or gas buffered or elastic reservoirs · CPC title

• A61M1/302

  having a reservoir for withdrawn untreated blood · CPC title

• A61M1/3606 Primary

  Arrangements for blood-volume reduction of extra-corporeal circuits · CPC title

• A61M2205/121

  interface between cassette and base · CPC title

• A61M2205/125

  with incorporated filters · CPC title