INFUSION PUMP FLOW BALANCING AND SYNCHRONIZATION SYSTEM

• US 20120143116A1
• Filed: 02/03/2012
• Published: 06/07/2012
• Est. Priority Date: 10/15/2003
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Inventors: Ware, Lee C., Boehnlein, Arnold F.
• Granted Patent: US 9,138,526 B2
• Time in Patent Office: Days
• US Class Current: 604/6.09
• CPC Class Codes: A61M 1/3434 with pre-dilution and post-dilution
• CPC Class Codes: A61M 1/3437 downstream of the filter, e.g. post-dilution with filtrate
• CPC Class Codes: A61M 1/3441 Substitution rate control as a function of the ultrafiltration rate
• CPC Class Codes: A61M 1/3451 the difference in weight between both ultra-filtrate and substitution reservoir being used as control signal
• CPC Class Codes: A61M 2005/14208 with a programmable infusion control system, characterised by the infusion program
• CPC Class Codes: A61M 5/142 Pressure infusion, e.g. using pumps
• CPC Class Codes: A61M 5/16827 controlling delivery of multiple fluids, e.g. sequencing, mixing or via separate flow-paths infusion of multiple fluids without using a controller A61M5/1407
• CPC Class Codes: G16H 20/17 delivered via infusion or injection
• CPC Class Codes: G16H 40/67 for remote operation

Abstract

A renal failure therapy system includes a blood pump, a dialysis fluid pump, a filtrate pump, at least one infusion pump, and a control unit configured to synchronize operation of the infusion pump to the blood pump or the filtrate pump.

Claims

1. A dialysis system comprising:

a blood pump;

a dialysis fluid pump;

a filtrate pump;

an infusion pump;

a dialyzer, arterial and venous blood lines in fluid communication with the dialyzer, the blood pump positioned and arranged to pump blood within the arterial and venous blood lines;

a dialysis fluid line in fluid communication with the dialyzer, the dialysis fluid pump positioned and arranged to pump dialysis fluid within the dialysis fluid line;

a spent dialysis fluid line in fluid communication with the dialyzer, the filtrate pump positioned and arranged to remove ultrafiltration via the spent dialysis fluid line;

an infusion line in fluid communication with one of the arterial and venous blood lines, the infusion pump positioned and arranged to pump an infusion solution within the infusion line; and

a controller in operable communication with the blood pump, dialysis fluid pump, filtrate pump and infusion pump, the controller configured to synchronize operation of the infusion pump to the blood pump or the filtrate pump.

2. The dialysis system of claim 1, wherein the controller is further configured and arranged to allow user-selected synchronization of the infusion pump to either the blood pump or the filtrate pump.

3. The dialysis system of claim 1, wherein synchronization includes only allowing the filtrate pump to be activated when the blood pump or the filtrate pump is activated.

4. The dialysis system of claim 1, wherein synchronization includes adjusting a flowrate of the infusion pump with respect to a flowrate of the blood pump or the dialysate pump.

5. The dialysis system of claim 1, which includes a substitution fluid pump pumping substitution fluid through a substitution fluid line to one of the arterial and venous blood lines.

6. The dialysis system of claim 1, wherein the controller is a remote controller operating with at least one of:

an external personal computer, a local area network, a wide area network or an internet.

7. The dialysis system of claim 1, which includes a user interface in operable communication with the controller, the user interface configured to enable a user to select whether to synchronize the infusion pump with the blood pump or the filtrate pump.

8. The dialysis system of claim 7, wherein the user interface is additionally configured to enable the user to select not to synchronize the infusion pump with another pump.

9. The dialysis system of claim 7, wherein the user interface is further configured to display at least one of a volume of the infusion solution remaining to deliver or a time remaining to deliver the infusion solution.

10. The dialysis system of claim 7, wherein the user interface displays an entered flowrate for the infusion solution, the entered flowrate set to a value or to keep vein open.

11. The dialysis system of claim 1, wherein the controller is further configured and arranged to synchronize operation of the dialysis fluid pump to the blood pump.

12. The dialysis system of claim 1, wherein the controller is further configured and arranged to synchronize operation of the blood pump to the dialysis fluid pump.

13. The dialysis system of claim 1, wherein the controller is further configured to operate the filtrate pump at a flowrate that takes into account a flowrate of the infusion pump.

14. The dialysis system of claim 1, which includes a housing for the blood pump, dialysis fluid pump and the filtrate pump, and wherein the infusion pump is located external to the housing.

15. A dialysis system comprising:

a blood pump;

a dialysis fluid pump;

a filtrate pump;

a first infusion pump;

a second infusion pump;

a dialyzer, arterial and venous blood lines in fluid communication with the dialyzer, the blood pump positioned and arranged to pump blood through one of the arterial and venous blood lines;

a dialysis fluid line in fluid communication with the dialyzer, the dialysis fluid pump positioned and arranged to pump dialysis fluid within the dialysis fluid line;

a spent dialysis fluid line in fluid communication with the dialyzer, the filtrate pump positioned and arranged to remove ultrafiltration via the spent dialysis fluid line;

first and second infusion lines in fluid communication with one of the arterial and venous blood lines, the first infusion pump positioned and arranged to pump a first infusion fluid through the first infusion line, the second infusion pump positioned and arranged to pump a second infusion fluid through the second infusion line; and

a controller in operable communication with the blood pump, dialysis fluid pump, filtrate pump, first infusion pump and second infusion pump, the controller configured to synchronize operation of both the first and second infusion pumps to the blood pump or the filtrate pump.

16. The dialysis system of claim 15, wherein the controller is further configured to allow user-selected synchronization of both the first and second infusion pumps to either the blood pump or the filtrate pump.

17. The dialysis system of claim 16, wherein the first infusion pump can be selectively synchronized with the blood pump while the second infusion pump is synchronized to the filtrate pump.

18. The dialysis system of claim 15, wherein the controller is additionally configured to allow a user to select not to synchronize operation of either or both of the first and second infusion pumps to any other pump.

19. The dialysis system of claim 15, wherein synchronization includes (i) only allowing the infusion pumps to be activated when the blood pump or the filtrate pump is activated or (ii) adjusting a flowrate of the first and second infusion pumps with respect to a flowrate of the blood pump or the filtrate pump.

20. A dialysis system comprising:

a blood pump;

a dialysis fluid pump;

a first infusion pump;

a second infusion pump;

a dialyzer, arterial and venous blood lines in fluid communication with the dialyzer, the blood pump positioned and arranged to pump blood through one of the arterial and venous blood lines;

a dialysis fluid line in fluid communication with the dialyzer, the dialysis fluid pump positioned and arranged to pump dialysis fluid within the dialysis fluid line;

first and second infusion lines in fluid communication with one of the arterial and venous blood lines, the first infusion pump positioned and arranged to pump a first infusion fluid through the first infusion line, the second infusion pump positioned and arranged to pump a second infusion fluid through the second infusion line; and

a user interface configured and arranged to selectively allow a user to synchronize either one or both of the first and second infusion pumps to the blood pump.