Flow Controllers

• US 20080108954A1
• 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: Rondeau, Georges, Grant, Benjamin S., Bowman, Joseph H., Mathias, Jean-Marie, Bischof, Daniel F., West, Richard L.
• Application Number:
  US11/555,797
• Publication Number:
  US 20080108954A1
• Time in Patent Office: Days
• US Class Current: 604/248
• CPC Class Codes: A61M 1/0209 Multiple bag systems for separating or storing blood components
• CPC Class Codes: A61M 1/0236 with sampling means, e.g. sample bag or sampling port
• CPC Class Codes: A61M 39/223 Multiway valves
• CPC Class Codes: A61M 5/16804 Flow controllers
• CPC Class Codes: F16K 11/0853 having all the connecting conduits situated in a single plane perpendicular to the axis of the plug
• CPC Class Codes: F16K 11/0856 having all the connecting conduits situated in more than one plane perpendicular to the axis of the plug

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 includes first and second flow paths. In a first position, the first flow path is aligned with the fluid inlet of the body to allow 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 align the second flow path with the fluid inlet of the body, thereby halting flow through the first flow path 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 defining a cavity, said body comprising a fluid inlet, a first fluid outlet, and a second fluid outlet; and

an actuator member at least partially received within the cavity and defining a first flow channel and a second flow channel, wherein

the actuator member is adapted for at least substantially non-rotational movement from a first position to a second position within said cavity,

the first flow channel allows for fluid communication between the fluid inlet and the first fluid outlet in said first position,

the second flow channel allows for fluid communication between the fluid inlet and the second fluid outlet in said second position, 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 means for preventing movement of the actuator member from the second position to the first position.

3. The flow controller of claim 1, wherein said flow channels are substantially comprised of a non-compressible material.

4. 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.

5. The flow controller of claim 1, wherein said body is substantially comprised of a first material and said actuator member is substantially comprised of a second material, and wherein one of said first and second materials is more rigid than the other of said first and second materials.

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

7. The flow controller of claim 1, wherein the fluid inlet and the fluid outlets define a flow plane, and wherein the actuator member is linearly movable from the first position to the second position along a path generally perpendicular to the flow plane.

8. The flow controller of claim 1, wherein said actuator member is comprised of a first material and a separate second material, wherein one of said first and second materials is more rigid than the other of said first and second materials.

9. 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.

10. The flow controller of claim 1, wherein said fluid inlet and said fluid outlets are substantially parallel and non-coaxial with each other.

11. The flow controller of claim 1, further comprising a convex bump of the actuator member, wherein said bump is adapted to extend into the second fluid outlet when the actuator member is in the first position.

12. The flow controller of claim 10, further comprising a second convex bump of the actuator member, wherein said second bump is adapted to extend into the first fluid outlet when the actuator member is in the second position

13. The flow controller of claim 1, further comprising a flat wall of the cavity and a flat wall of the actuator member, wherein the flat walls are aligned for the cavity to receive the actuator member.

14. The flow controller of claim 1, further comprising a tactile and/or audible indication when the actuator is moved to the second position.

15. A flow controller comprising:

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

a generally cup-shaped insert received within the cavity, said insert comprising an inlet hole aligned with the fluid inlet, a first outlet hole aligned with the first fluid outlet, and a second outlet hole aligned with the second fluid outlet; and

an actuator member at least partially received within the insert for movement from a first position to a second position within said insert, whereby in said first position the actuator member allows for fluid communication between the fluid inlet and the first fluid outlet, and in said second position the actuator member allows for fluid communication between the fluid inlet and the second fluid outlet.

16. The flow controller of claim 15, further comprising means for preventing movement of the actuator member from the second position to the first position.

17. The flow controller of claim 15, wherein said insert is substantially comprised of a material adapted to bond to the body upon steam sterilization.

18. The flow controller of claim 15, wherein said insert is substantially comprised of a material adapted to resist deformation upon steam sterilization.

19. The flow controller of claim 15, wherein said body is substantially comprised of a first material and said insert is substantially comprised of a second material, and wherein one of said first and second materials is more rigid than the other of said first and second materials.

20. The flow controller of claim 18, wherein said insert is substantially comprised of stainless steel.

21. The flow controller of claim 15, wherein said insert is comprised of an inner layer and an outer layer, and wherein said outer layer is more rigid than said inner layer

22. The flow controller of claim 15, 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.

23. The flow controller of claim 15, 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.

24. The flow controller of claim 15, further comprising a convex bump of the actuator member and a bump-receiving opening below the second outlet hole of the insert, wherein said bump is adapted to extend into the second outlet hole when the actuator member is in the first position and to extend into the bump-receiving opening when the actuator member is in the second position.

25. The flow controller of claim 24, further comprising a second convex bump of the actuator member, wherein said second bump is adapted to extend into the first fluid outlet when the actuator member is in the second position.

26. The flow controller of claim 15, wherein the actuator member is adapted for at least substantially non-rotational movement from the first position to the second position.

27. The flow controller of claim 26, further comprising a flat wall of the insert and a flat wall of the actuator member, wherein the flat walls are aligned for the insert to receive the actuator member.

28. 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 at least partially received within the cavity and defining a first flow channel and a second flow channel, wherein

the actuator member is adapted for at least substantially non-rotational movement from a first position to a second position,

the first flow channel allows for fluid communication between the fluid inlet and the first fluid outlet in said first position,

the second flow channel allows for fluid communication between the fluid inlet and the second fluid outlet in said second position, and

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

29. The fluid processing set of claim 28, 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.

30. The fluid processing set of claim 28, wherein said second collection container is adapted to receive a greater amount of fluid than said first collection container.

31. The fluid processing set of claim 30, wherein said first collection container comprises a blood sample pouch, and wherein said second collection container comprises a main collection container.

32. The fluid processing set of claim 31, wherein said first collection container defines an internal chamber and further includes an internal flow path that extends into said chamber.

33. The fluid processing set of claim 28, further comprising a Y-type access site in fluid communication with said flow controller and said first collection container.

34. The fluid processing set of claim 33, wherein said Y-type access site is adapted to receive a tube holder.

35. The fluid processing set of claim 28, further comprising means for preventing movement of the actuator member from the second position to the first position.

36. The fluid processing set of claim 28, 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.

37. The fluid processing set of claim 28, wherein the fluid inlet and the fluid outlets define a flow plane, and wherein the actuator member is linearly movable from the first position to the second position along a path generally perpendicular to the flow plane.

38. The fluid processing set of claim 28, further comprising a generally cup-shaped insert received within the cavity, said insert comprising an inlet hole aligned with the fluid inlet, a first outlet hole aligned with the first fluid outlet, and a second outlet hole aligned with the second fluid outlet, wherein the actuator member is at least partially received within the insert for movement from a first position to a second position within said insert, whereby in said first position the first flow channel allows for fluid communication between the fluid inlet and the first fluid outlet, and in said second position the second flow channel allows for fluid communication between the fluid inlet and the second fluid outlet.

39. A method of collecting at least two quantities of a fluid from a 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 first flow channel and a second channel separate from said first channel, said actuator member 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 first 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 blood flow through said second 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.

40. The method of claim 39, wherein said fluid is blood.

41. The method of claim 39, wherein said introducing flow includes preventing flow to the second collection container.

42. The method of claim 39, wherein said moving the actuator member includes preventing flow to the first collection container.

43. The method of claim 39, 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.

44. The method of claim 39, wherein said providing an actuator member includes providing a sanitary seal substantially enclosing the actuator member within the body.