Flow Controllers

• US 20080108955A1
• Filed: 11/02/2006
• Published: 05/08/2008
• Est. Priority Date: 11/02/2006
• Status: Abandoned Application

• Current Assignee: Fenwal Incorporated (Fresenius SE & Co. KGaA)
• Original Assignee: Fenwal Incorporated (Fresenius SE & Co. KGaA)
• Inventors: Blickhan, Bryan J.
• Application Number:
  US11/555,868
• Publication Number:
  US 20080108955A1
• Time in Patent Office: Days
• US Class Current: 604/248
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/16804 Flow controllers
• 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

Abstract

Flow controllers are provided for interconnecting a fluid source to two separate collection zones The flow controllers include a body having a fluid inlet communicating with the source and two fluid outlets, each communicating with one of the collection zones An actuator member received within a cavity of the body selectively establishes fluid communication between the inlet and an outlet In a first position, the fluid inlet is in fluid communication with one of the fluid outlets and the associated collection zone. The actuator member is non-rotationally moved to a second position within the cavity to establish fluid communication between the fluid inlet and the other fluid outlet, thereby halting flow through the first outlet and allowing fluid communication with the other collection zone. An optional safety feature prevents movement of the actuator member from the second position to the first position.

Claims

1. A flow controller comprising;

a body comprising a fluid inlet, a first fluid outlet, and a second fluid outlet, said body being adapted to receive a movable actuator member for selectively bringing the fluid inlet and fluid outlets into fluid communication; and

an actuator member at least partially received within the body, wherein said actuator member is adapted for at least substantially non-rotational movement between a first position and a second position within the body, whereby

in the first position, the fluid inlet is in fluid communication with the first fluid outlet and not the second fluid outlet and in the second position, the fluid inlet is in fluid communication with the second fluid outlet and not the first fluid outlet and the actuator member is prevented from moving from said second position to said first position

2. The flow controller of claim 1, further comprising a single flow channel of the actuator member, wherein the flow channel allows for fluid communication between the fluid inlet and the first fluid outlet in said first position and allows for fluid communication between the fluid inlet and the second fluid outlet in said second position.

3. The flow controller of claim 1, whereby in said first position fluid communication between the fluid inlet and second fluid outlet is substantially prevented, and in said second position fluid communication between the fluid inlet and the first fluid outlet is substantially prevented.

4. The flow controller of claim 1, further comprising a sanitary seal substantially enclosing the actuator member within the body.

5. The flow controller of claim 4, said body further comprising a finger grip, wherein said sanitary seal is connected to the finger grip.

6. The flow controller of claim 1, further comprising a sealing member between the actuator member and the body.

7. The flow controller of claim 1, wherein said fluid inlet and said second fluid outlet are substantially coaxial, and wherein said first fluid outlet is substantially non-coaxial with said fluid inlet.

8. The flow controller of claim 1, wherein said actuator member is substantially non-cylindrical.

9. A flow controller comprising:

a body defining a cavity, said body comprising a fluid inlet, a first fluid outlet, and a second fluid outlet;

an actuator member at least partially received within the cavity and adapted for movement from a first position to a second position within said cavity; and

a flow channel defined by the actuator member and comprising a fluid entrance and a fluid exit, wherein

the fluid entrance is adjacent to the fluid inlet and the fluid exit is adjacent to the first fluid outlet for allowing fluid communication between the fluid inlet and the first fluid outlet in said first position,

the fluid entrance is adjacent to the fluid inlet and the fluid exit is adjacent to the second fluid outlet for allowing fluid communication between the fluid inlet and the second fluid outlet in said second position,

said fluid entrance is substantially larger than the fluid inlet, and said fluid exit is substantially larger than each of the fluid outlets, and

the actuator member is prevented from moving from said second position to said first position.

10. The flow controller of claim 9, wherein said flow channel is generally Z-shaped.

11. The flow controller of claim 9, wherein the actuator member is adapted for at least substantially non-rotational movement from the first position to the second position.

12. The flow controller of claim 11, wherein said actuator member is substantially non-cylindrical.

13. The flow controller of claim 9, whereby in said first position fluid communication between the fluid inlet and second fluid outlet is substantially prevented, and in said second position fluid communication between the fluid inlet and the first fluid outlet is substantially prevented.

14. The flow controller of claim 9, further comprising a sanitary seal substantially enclosing the actuator member within the cavity.

15. The flow controller of claim 14, said body further comprising a finger grip, wherein said sanitary seal is connected to the finger grip.

16. The flow controller of claim 9, further comprising a sealing member between the actuator member and the body.

17. The flow controller of claim 9, wherein said fluid entrance is at least approximately 200% larger than the fluid inlet, and said fluid exit is at least approximately 200% larger than each of the fluid outlets.

18. The flow controller of claim 9, wherein said fluid inlet and said second fluid outlet are substantially coaxial, and wherein said first fluid outlet is substantially non-coaxial with said fluid inlet.

19. A fluid processing set comprising:

a first collection container;

a second collection container; and

a flow controller comprising

a body defining a cavity, said body comprising a fluid inlet, a first fluid outlet communicating with the first collection container, and a second fluid outlet communicating with the second collection container, and

an actuator member defining a single flow channel and at least partially received within the cavity for at least substantially non-rotational movement from a first position to a second position within the cavity, whereby in said first position the flow channel allows for fluid communication between the fluid inlet and the first fluid outlet of the body, and in said second position the flow channel allows for fluid communication between the fluid inlet and the second fluid outlet of the body, and wherein the actuator member is prevented from moving from said second position to said first position.

20. The fluid processing set of claim 19, wherein said fluid inlet and said second fluid outlet are substantially coaxial, and wherein said first fluid outlet is substantially non-coaxial with said fluid inlet.

21. The fluid processing set of claim 20, wherein said second collection container is adapted to receive a greater amount of fluid than said first collection container.

22. The fluid processing set of claim 21, wherein said first collection container comprises a blood sample pouch, and wherein said second collection container comprises a main collection container.

23. The fluid processing set of claim 22, wherein said first collection container defines an internal chamber and further includes an internal flow path that extends into said chamber.

24. The fluid processing set of claim 19, further comprising a Y-type access site in fluid communication with said flow controller and said first collection container.

25. The fluid processing set of claim 24, wherein said Y-type access site is adapted to receive a tube holder.

26. The fluid processing set of claim 19, whereby in said first position fluid communication between the fluid inlet and second fluid outlet is substantially prevented, and in said second position fluid communication between the fluid inlet and the first fluid outlet is substantially prevented.

27. A method of collecting at least two quantities of a biological fluid from a biological fluid source, comprising:

providing a first collection container and a second collection container;

providing a flow controller body having a fluid inlet, a first fluid outlet communicating with the first collection container, and a second fluid outlet communicating with the second collection container;

providing an actuator member defining a flow channel and movably received by the body;

introducing flow of said fluid to the fluid inlet of the flow controller body with the actuator member in a first position within the flow controller body, thereby directing the flow through said flow channel and said first fluid outlet to said first collection container;

moving the actuator member from the first position to a second position within the flow controller body without substantial rotational movement, thereby directing the flow through said flow channel and said second fluid outlet to said second collection container; and

preventing movement of the actuator member from the second position to the first position

28. The method of claim 27, wherein said biological fluid is blood.

29. The method of claim 27, wherein said introducing flow includes preventing flow to the second collection container.

30. The method of claim 27, wherein said moving the actuator member includes preventing flow to the first collection container.

31. The method of claim 27, wherein said introducing flow includes directing an amount of flow to the first collection container and wherein said moving the actuator member includes directing a greater amount of flow to the second collection container.

32. The method of claim 27, wherein said providing an actuator member includes providing a sanitary seal substantially enclosing the actuator member within the body.