Self sealing disconnect device

• US 6,902,207 B2
• Filed: 05/01/2002
• Issued: 06/07/2005
• Est. Priority Date: 05/01/2002
• Status: Active Grant

• Current Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Minimed Incorporated (Medtronic Plc)
• Inventors: Lickliter, Hans
• Primary Examiner(s): Bochna, David
• Application Number:
  US10/136,643
• Publication Number:
  US 20030205901A1
• Time in Patent Office: 1,133 Days
• Field of Search: 285/3, 285/921, 285/331, 292/82, 604/905
• US Class Current: 285/331
• CPC Class Codes: A61M 2039/1027 Quick-acting type connectors
• CPC Class Codes: A61M 2039/1072 with a septum present in the connector
• CPC Class Codes: A61M 39/1011 Locking means for securing connection; Additional tamper safeties A61M39/16 takes precedence
• CPC Class Codes: A61M 39/14 for connecting tubes having sealed ends needle sets A61M5/162; having valves closing automatically on disconnection of line A61M39/26
• CPC Class Codes: A61M 39/165 Shrouds or protectors for aseptically enclosing the connector
• CPC Class Codes: A61M 39/18 Methods or apparatus for making the connection under sterile conditions, i.e. sterile docking
• CPC Class Codes: A61M 39/26 Valves closing automatically on disconnecting the line and opening on reconnection thereof check valves A61M39/24
• CPC Class Codes: Y10S 285/921 Snap-fit
• CPC Class Codes: Y10S 604/905 Aseptic connectors or couplings, e.g. frangible, piercable
• CPC Class Codes: Y10T 29/53987 Tube, sleeve or ferrule

Abstract

Apparatuses and methods for connecting and disconnected fluid conduits (e.g. medical tubing) are disclosed. Typical embodiments of the Apparatuses and methods disclosed herein operate with two separate components, the first having a moveable septum and the second having a fixed septum. When the components are engaged, the device allows the flow of fluid through a conduit to which they are coupled. When the components are uncoupled, the device prevents the flow of fluid through the conduit. An exemplary embodiment of the invention includes a housing, a moveable septum slideably coupled with the housing to be alternately disposed in at least a first and second position and a piercing member having a passage for conducting fluid. The moveable septum closes the passage in the first position and is penetrated by the piercing member to open the passage in the second position.

Claims

1. An apparatus, comprising:

a housing; and

a moveable septum slideably coupled with the housing to be disposed in at least a first and a second position;

a fluid conduit comprising a piercing member having a passage and an opening for conducting fluid;

at least one retention feature coupled to the moveable septum, wherein the retention feature it adapted to engage a mating retention feature of a component including fixed septum and wherein the retention feature includes a snap fitting;

wherein the piercing member is at least partially within the moveable septum to close the opening and inhibit a fluid flow in the fluid conduit coupled to the apparatus in the first position and the movable septum is penetrated by the piercing member in the second position such that the fluid flow is not inhibited through the opening of the piercing member.

2. The apparatus of claim 1, further including a carrier for holding the moveable septum and slideably coupling with the housing.

3. The apparatus of claim 1, wherein the housing includes a stop to retain the moveable septum in slideable coupling.

4. The apparatus of claim 1, wherein the apparatus is coupleable to a component including a fixed septum such that the fixed septum is pierced by the fluid conduit when the apparatus is coupled to the fixed septum component and the moveable septum is in the second position.

5. The apparatus of claim 1, wherein the retention feature is adapted to position the moveable septum in the first position before the fixed septum component is uncoupled from the fluid conduit.

6. The apparatus of claim 1, wherein the retention feature is integral to the moveable septum.

7. The apparatus of claim 1, wherein the retention feature in disposed on a carrier for holding the moveable septum and slideably coupling with the housing.

8. The apparatus of claim 1, wherein the housing includes a housing engagement feature for coupling to the fixed septum component.

9. The apparatus of claim 1, wherein the piercing member is fixed to the housing.

10. The apparatus of claim 1, wherein the piercing member is blunted.

11. The apparatus of claim 1, wherein the passage of the piercing member includes a radial opening.

12. The apparatus of claim 1, wherein the passage of the piercing member includes an axial opening.

13. A method of connecting a fluid conduit, comprising the steps of:

providing a housing;

providing at least one retention feature coupled to a moveable septum, wherein the retention feature is adapted to engage a mating retention feature of a fixed septum component and wherein the retention feature includes a snap fitting;

slideably coupling a moveable septum with the housing to be alternately disposed in at least a first and second position wherein a fluid conduit comprising a piercing member having a passage and an opening for conducting fluid has the piercing member at least partially within the moveable septum to close the opening and inhibit a fluid flow in the fluid conduit in the first position and the movable septum is penetrated by the piercing member to permit the fluid flow through the opening of the piercing member in the second position; and

coupling the fluid conduit to the fixed septum component including a fixed septum that is pierced by the piercing member when the fixed septum component is coupled and the moveable septum is in the second position.

14. The method of claim 13, further including holding the moveable septum in a carrier and slideably coupling the moveable septum with the housing.

15. The method of claim 13, wherein the housing includes a stop to retain the moveable septum in slideable coupling.

16. The method of claim 13, wherein the retention feature is adapted to position the moveable septum in the first position before the fixed septum component is uncoupled from the fluid conduit.

17. The method of claim 13, wherein the retention feature is integral to the moveable septum.

18. The method of claim 13, wherein the retention feature is disposed on a carrier for holding the moveable septum and slideably coupling with the housing.

19. The method of claim 13, wherein the housing includes a housing engagement feature for coupling to the fixed septum component.

20. The method of claim 13, wherein the piercing member is fixed to the housing.

21. The method of claim 13, wherein the piercing member is blunted.

22. The method of claim 13, wherein the passage of the piercing member includes a radial opening.

23. The method of claim 13, wherein the passage of the piercing member includes an axial opening.

24. An apparatus, comprising:

a housing;

a septum fixed to the housing; and

at least one retention feature including a snap fitting coupleable to a moveable septum component including a fluid conduit comprising a piercing member having a passage and an opening for conducting fluid and adapted to position a moveable septum of the moveable septum component in a first position before the retention feature is uncoupled wherein the piercing member is at least partially within the moveable septum to close the opening and is alternately disposed in a first position where the moveable septum inhibits a fluid flow and a second position where the moveable septum permits the fluid flow through the opening of the piercing member;

wherein the fixed septum is pierced by the piercing member and the moveable septum is disposed in the second position when the retention feature is coupled to the moveable septum component.

25. The apparatus of claim 24, wherein the retention feature is integral to the fixed septum.

26. The apparatus of claim 24, wherein the retention feature is integral to the housing.

27. The apparatus of claim 24, wherein the housing includes a housing engagement feature to engage the moveable septum component.

28. The apparatus of claim 24, wherein the housing includes a housing engagement feature for coupling to the moveable septum component.

29. The apparatus of claim 24, wherein the piercing member is blunted.

30. The apparatus of claim 24, wherein the passage of the piercing member includes a radial opening.

31. The apparatus of claim 24, wherein the passage of the piercing member includes an axial opening.

32. A method of connecting a fluid conduit, comprising the steps of:

providing a fixed septum component having a housing, a septum fixed to the housing and at least one retention feature including a snap fitting coupleable to a moveable septum component, the movable septum component including a fluid conduit comprising a piercing member having a passage and an opening for conducting fluid wherein the piercing member is at least partially within the movable septum to close the opening and inhibit a fluid flow in the fluid conduit in a first position; and

connecting the fixed septum component with the moveable septum component;

wherein the fixed septum is pierced by the piercing member of the movable septum component to a second position permitting a fluid flow through the opening of the piercing member when the retention feature is coupled to the moveable septum component.

33. The method of claim 32, wherein the retention feature is integral to the fixed septum.

34. The method of claim 32, wherein the retention feature is integral to the housing.

35. The method of claim 32, wherein the housing includes a housing engagement feature to engage the moveable septum component.

36. The method claim 32, wherein the housing includes a housing engagement feature to coupling to moveable septum component.

37. The method of claim 32, wherein the piercing member is blunted.

38. The method of claim 32, wherein the passage of the piercing member includes a radial opening.

39. The method of claim 32, wherein the passage of the piercing member includes an axial opening.

40. The method of claim 32, wherein the retention feature is adapted to position the moveable septum in the first position before the retention feature is uncoupled.

41. A fluid coupling system, comprising

a moveable septum component, including:

a first housing;

a piercing member having a passage and an opening for conducting fluid; and

a moveable septum slideably coupled with the first housing to be alternately disposed in at least a first position where the piercing member is at least;

partially within the moveable septum to close the opening and inhibit a fluid flow in the fluid conduit and a second position where the moveable septum is penetrated by the piercing member to permit the fluid flow through the opening of the piercing member; and

a fixed septum component coupleable to the moveable septum component, including;

a second housing;

an immobile septum fixed to the second housing; and

at least one retention feature coupled to the moveable septum, wherein the retention feature includes a snap fitting and is adapted to engage a mating retention feature of the fixed septum component;

wherein the fixed septum is pierced by the piercing member to permit the fluid flow when the fixed septum component and the moveable septum component are coupled with the moveable septum in the second position.

42. The system of claim 41, wherein the a moveable septum component further includes a carrier for holding the moveable septum and slideably coupling with the housing.

43. The system of claim 41, wherein the first housing includes a stop to retain the moveable septum in slideable coupling.

44. The system of claim 41, wherein the retention feature is adapted to position the moveable septum in the first position before she fixed septum component is uncoupled from the fluid conduit.

45. The system of claim 41, wherein the retention feature is integral to the moveable septum.

46. The system of claim 41, wherein the retention feature is disposed on a carrier for holding the moveable septum and slideably coupling with the first housing.

47. The system of claim 41, wherein the first housing includes a housing engagement feature for coupling to a mating housing engagement feature of the second housing.

48. The system of claim 41, wherein the piercing member is fixed to the first housing.

49. The system of claim 41, wherein the piercing member is blunted.

50. The system of claim 41, wherein the passage of the piercing member includes a radial opening.

51. The system of claim 41, wherein the passage of the piercing member includes an axial opening.