Control system for driving fluids through an extracorporeal blood circuit

• US 20060219644A1
• Filed: 06/01/2006
• Published: 10/05/2006
• Est. Priority Date: 09/03/2003
• Status: Abandoned Application

• Current Assignee: Therakos, Inc (Mallinckrodt plc)
• Original Assignee: Therakos, Inc (Mallinckrodt plc)
• Inventors: Briggs, Dennis, Watters, Tom, O'Hara, Gerald P. Jr., Hutchinson, Michael, Gara, Stephen
• Application Number:
  US11/444,929
• Publication Number:
  US 20060219644A1
• Time in Patent Office: Days
• US Class Current: 210/782
• CPC Class Codes: A61M 1/0227 and means for securing the filter against damage, e.g. during centrifugation
• CPC Class Codes: A61M 1/3603 in the same direction
• CPC Class Codes: A61M 1/3606 Arrangements for blood-volume reduction of extra-corporeal circuits
• CPC Class Codes: A61M 1/36224 with sensing means or components thereof
• CPC Class Codes: A61M 1/36225 with blood pumping means or components thereof
• CPC Class Codes: A61M 1/36226 Constructional details of cassettes, e.g. specific details on material or shape
• CPC Class Codes: A61M 1/362261 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
• CPC Class Codes: A61M 1/362263 Details of incorporated filters
• CPC Class Codes: A61M 1/362266 Means for adding solutions or substances to the blood
• CPC Class Codes: A61M 1/3627 Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
• CPC Class Codes: A61M 1/3633 Blood component filters, e.g. leukocyte filters
• CPC Class Codes: A61M 1/3681 by irradiation
• CPC Class Codes: A61M 1/3686 by removing photoactive agents after irradiation
• CPC Class Codes: A61M 1/3696 with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation
• CPC Class Codes: A61M 2205/125 with incorporated filters
• CPC Class Codes: A61M 2205/128 with incorporated valves
• CPC Class Codes: A61M 2205/3561 local, e.g. within room or hospital
• CPC Class Codes: A61M 2205/75 with filters
• CPC Class Codes: F04B 43/0081 systems, control, safety measures
• CPC Class Codes: F04B 43/1292 Pumps specially adapted for several tubular flexible members

Abstract

A control deck and system for controlling and driving blood fluids through an extracorporeal blood circuit kit. In one aspect, the invention is a deck having an improved mechanism for securing a cassette in place during treatment operations. The improved deck comprises catches for slidably receiving tabs of the cassette and one or more rotating clamps for locking and securing the cassette in a loaded position. In another aspect the invention is a system for controlling and driving blood fluids having infrared communication abilities to transmit and receive real time data. In still another aspect, the invention is a system for controlling and driving blood fluids having an upright tower design that reduces the footprint of the system. In this embodiment, a centrifuge chamber is positioned in an upper portion of the system while the control deck and photoactivation chamber are located in a base portion of the system.

Claims

1. A system for driving blood fluids through an extracorporeal blood circuit kit comprising:

a controller

a housing having the deck for receiving and controlling a cassette for directing fluid flow through the kit;

a centrifuge chamber within the housing; and

an infrared communication port coupled to the controller.

2. The system of claim 1 wherein the infrared communication port is adapted to transmit real time data relating to a therapy session being performed on the system to a remote device.

3. The system of claim 1 further comprising a photoactivation chamber for receiving an irradiation chamber of the kit in the housing.

4. The system of claim 3 wherein the photoactivation chamber is vertically oriented.

5. The system of claim 3 further comprising a leak detector in the photoactivation chamber.

6. The system of claim 5 wherein the leak detector comprises at least two U-shaped electrodes, a solid state switch connected to a first end of the electrodes, and an integrated circuit connected to a second end of the electrodes, the leak detector coupled to the controller.

7. The system of claim 1 further comprising a leak detector in the centrifuge chamber.

8. The system of claim 7 wherein the leak detector comprises at least two U-shaped electrodes, a solid state switch connected to a first end of the electrodes, and an integrated circuit connected to a second end of the electrodes, the leak detector coupled to the controller.

9. The system of claim 1 further comprising wheels at or near a bottom of the housing.

10. The system of claim 1 further comprising means to hang a plurality of fluid bags from the housing.

11. The system of claim 1 wherein the centrifuge chamber is in an upper portion of the housing and the deck is located on a top of a base portion of the housing, the centrifuge chamber being above the deck.

12. The system of claim 11 wherein the height of the system is less than about 60 inches.

13. The system of claim 1 further comprising means to authenticate a unique identifier associated with the kit, the authentication means coupled to the controller.

14. The system of claim 13 wherein the means to authenticate is a data card receiving slot coupled to the controller.

15. The system of claim 1 further comprising at least one compression actuator on the deck, the compression actuator adapted to move between a raised position and a lowered position, wherein when the cassette is loaded onto a cassette loading area and the compression actuator is in the raised position, the compression actuator will occlude a portion of flexible tubing within the cassette by compressing the portion of flexible tubing against a housing of the cassette.

16. The system of claim 1 wherein the deck comprises a plate having a cassette loading area;

at least one catch for slidably receiving a corresponding tab of the cassette, the catch positioned on the plate adjacent to the cassette loading area;

at least one rotating clamp rotatable between an open position and a closed position, the rotating clamp positioned on the plate adjacent to the cassette loading area;

wherein when the rotating clamp is in the open position, the rotating clamp does not obstruct the cassette from being removed from the cassette loading area; and

wherein when the rotating clamp is in the closed position and the cassette loaded onto the cassette loading area, the rotating clamp prohibits the cassette from being removed from the cassette loading area.

17. A system for driving blood fluids through an extracorporeal blood circuit kit comprising:

a controller;

a base portion having a top having a deck for receiving and controlling a cassette for directing fluid flow through the kit;

an upper portion atop the top; and

a centrifuge chamber within the upper portion.

18. The system of claim 17 further comprising a photoactivation chamber in the base portion for receiving an irradiation chamber of the kit.

19. The system of claim 18 wherein the photoactivation chamber is vertically oriented and has a leak detector in the photoactivation chamber.

20. The system of claim 19 wherein the leak detector comprises two U-shaped electrodes, a solid state switch connected to a first end of the electrodes, and an integrated circuit connected to a second end of the electrodes.

21. The system of claim 17 further comprising a leak detector in the centrifuge chamber.

22. The system of claim 21 wherein the leak detector comprises two U-shaped electrodes, a solid state switch connected to s first end of the electrodes, and an integrated circuit connected to a second end of the electrodes.

23. The system of claim 17 wherein the height of the system is less than about 60 inches.

24. The system of claim 17 further comprising at least one peristaltic pump for driving fluids through the kit, the peristaltic pumps located on the deck.

25. The system of claim 24 wherein the peristaltic pump comprises a rotor rotatably mounted about a rotor axis;

a housing having a curved wall surrounding at least a portion of the rotor and forming a tube pumping region between the rotor and the curved wall;

the rotor comprising at least one drive roller for progressively compressing a loop of tubing against the curved wall;

the rotor comprising a flange above the housing and an angled guide extending upward from the flange for displacing the loop of tubing toward the flange upon the rotor being rotated in a forward direction;

the flange having an opening with a leading edge and a trailing edge for capturing and feeding the loop of tubing into the tube pumping region upon the rotor being rotated in the forward direction; and

wherein the trailing edge is higher than the leading edge.

26. The system of claim 17 further comprising one or more catches for receiving a tab of the cassette, and one or more rotating clamps for engaging and securing the cassette to the deck.

27. The system of claim 17 further comprising an infrared communication port adapted to transmit real time data relating to a therapy session being performed on the system to a remote device.

28. The system of claim 17 further comprising a plurality of compression actuators for closing off fluid passageways of the kit by compressing a portion flexible tube against a housing of the cassette.

29. The system of claim 17 further comprising means to authenticate a unique identifier associated with the kit, the authentication means coupled to the controller.

30. The system of claim 29 wherein the means to authenticate is a data card receiving slot.

31. A system for driving blood fluids through an extracorporeal blood circuit kit comprising:

a controller;

a base portion having a top surface having a deck for receiving and controlling a cassette for directing fluid flow through the kit;

an upper portion atop the top surface;

a centrifuge chamber within the upper portion.

a photoactivation chamber for receiving an irradiation chamber of the kit, the photoactivation vertically oriented and located in the base portion below the deck;

a first leak detector in the photoactivation chamber and a second leak detector in the centrifuge chamber;

wherein a height of the system is less than about 60 inches;

five peristaltic pumps for driving fluid flow through the kit on the deck;

one or more catches for receiving a corresponding tab of the cassette, and one or more rotating clamps for engaging and securing the cassette to the deck;

a plurality of compression actuators for closing off fluid passageways of the kit by compressing a portion flexible tube;

means to hang a plurality of fluid bags;

means to authenticate a unique identifier associated with the kit, the authentication means coupled to the controller; and

an infrared communication port.