Elcam Medical Agricultural Cooperative Association Ltd.
대리인 / 주소
Sughrue Mion, PLLC
인용정보
피인용 횟수 :
2인용 특허 :
57
초록▼
A fluid flow connector including a housing assembly, having a first end and a second end arranged along a common longitudinal axis, and a resilient fluid flow conduit member having a forward end, disposed alongside the first end of the housing assembly, formed with a selectably closable slit and wit
A fluid flow connector including a housing assembly, having a first end and a second end arranged along a common longitudinal axis, and a resilient fluid flow conduit member having a forward end, disposed alongside the first end of the housing assembly, formed with a selectably closable slit and with at least one side opening. The resilient fluid flow conduit member is positionable in a closed position wherein the slit is closed but the at least one side opening is open and in an open position, allowing the slit to open and leaving the at least one side opening open, whereby when the resilient fluid flow conduit member is in the open position, the selectably closable slit and the at least one side opening each provide a fluid flow pathway between an interior of the resilient fluid flow conduit member and the first end of the housing assembly.
대표청구항▼
1. A fluid flow connector comprising: a housing assembly having a first end and a second end arranged along a common longitudinal axis; anda resilient fluid flow conduit member disposed within said housing assembly, said resilient fluid flow conduit member having a forward end disposed alongside sai
1. A fluid flow connector comprising: a housing assembly having a first end and a second end arranged along a common longitudinal axis; anda resilient fluid flow conduit member disposed within said housing assembly, said resilient fluid flow conduit member having a forward end disposed alongside said first end of said housing assembly, said forward end being formed with a selectably closable slit and with at least one side opening;said resilient fluid flow conduit member being positionable in a closed position wherein said slit is closed but said at least one side opening is open; andsaid resilient fluid flow conduit member being positionable in an open position, thereby allowing said slit to open and leaving said at least one side opening open, whereby when said resilient fluid flow conduit member is in said open position, said selectably closable slit and said at least one side opening each provide a fluid flow pathway between an interior of said resilient fluid flow conduit member and said first end of said housing assembly,said resilient fluid flow conduit member being pre-tensioned and thereby urged to said closed position. 2. A fluid flow connector according to claim 1 and wherein said resilient fluid flow conduit member is arranged for displacement between said closed position and said open position along said common longitudinal axis. 3. A fluid flow connector according to claim 1 and wherein said selectably closable slit extends along said longitudinal axis. 4. A fluid flow connector according to claim 1 and wherein said first end is an internally threaded end and said second end is an externally threaded end. 5. A fluid flow connector according to claim 1 and wherein said at least one side opening extends generally perpendicularly to said longitudinal axis. 6. A fluid flow connector according to claim 1 and wherein said resilient fluid flow conduit member is displaceable, against the urging produced by its being pre-tensioned, to said open position. 7. A fluid flow connector according to claim 1 and wherein said resilient fluid flow conduit member includes: a displacement engagement location formed rearwardly of said forward end for engagement of said resilient fluid flow conduit member by a displacement actuator to provide rearward displacement of said resilient fluid flow conduit member relative to said housing assembly along said longitudinal axis;a generally cylindrical portion extending rearwardly of said displacement engagement location and having a forward part and a rearward part; anda radially outwardly extending tensionable connecting portion integrally joined to said generally cylindrical portion at a joining location rearwardly spaced from said displacement engagement location intermediate said forward part and said rearward part. 8. A fluid flow connector according to claim 7 and wherein said tensionable connecting portion terminates in a generally circularly cylindrical mounting portion. 9. A fluid flow connector according to claim 8 and wherein said generally circularly cylindrical mounting portion is locked within said housing assembly intermediate said first end and said second end. 10. A fluid flow connector according to claim 1 and wherein: said resilient fluid flow conduit member is formed with an elongate bore which defines a fluid flow conduit; andsaid slit and said at least one side opening communicate with said elongate bore. 11. A fluid flow connector according to claim 10 and wherein when said resilient fluid flow conduit member is positioned in said closed position, said forward end engages a forward conduit having a forwardly facing aperture, thereby closing said slit but leaving said at least one side opening open for fluid communication between an interior of said resilient fluid flow conduit member and an exterior of said resilient fluid flow conduit member within said forward conduit, thereby sealing said forwardly facing aperture. 12. A fluid flow connector according to claim 11 and wherein when said resilient fluid flow conduit member is positioned in said open position, said forward end does not engage said forward conduit, thereby allowing said slit to open and leaving said at least one side opening open for fluid communication between said interior of said resilient fluid flow conduit member and said exterior of said resilient fluid flow conduit member within said forward conduit and thereby unsealing said forwardly facing aperture. 13. A fluid flow connector according to claim 11 and wherein said forward conduit is formed with an interior bore having a forwardly tapered portion. 14. A fluid flow connector according to claim 13 and wherein when said resilient fluid flow conduit member is positioned in said closed position, said forward end sealingly engages said forwardly tapered portion of said interior bore, thereby squeezing said forward end transversely to said longitudinal axis and thereby closing said slit and sealing said forwardly facing aperture but leaving said at least one side opening open for fluid communication between said interior of said resilient fluid flow conduit member and said exterior thereof within said interior bore of said forward conduit. 15. A fluid flow connector according to claim 13 and wherein when said resilient fluid flow conduit member is positioned in said open position, said forward end is rearwardly positioned out of engagement with said forwardly tapered portion of said interior bore, thereby unsealing said forwardly facing aperture, and thereby allowing said slit to open and leaving said at least one side opening open, thereby providing fluid communication between said elongate bore of said resilient fluid flow conduit member, said exterior of said resilient fluid flow conduit member, said interior bore of said forward conduit and said forwardly facing aperture, both via said slit and via said at least one side opening. 16. A fluid flow connector according to claim 7 and wherein said displacement actuator is arranged to be displaced rearwardly along said longitudinal axis by engagement therewith of a rearwardly facing end of an external conduit, which engages said first end. 17. A fluid flow connector according to claim 13 and wherein said resilient fluid flow conduit member is formed with a sealing ring extending radially outward therefrom, slightly rearwardly of said forward end. 18. A fluid flow connector according to claim 7 and wherein said resilient fluid flow conduit member is formed with a radially outer sealing surface extending radially outward from a rearward end thereof. 19. A fluid flow connector according to claim 18 and wherein said housing assembly includes a rearward conduit extending forwardly from said second end. 20. A fluid flow connector comprising: a housing assembly having a first end and a second end arranged along a common longitudinal axis; anda resilient fluid flow conduit member disposed within said housing assembly, said resilient fluid flow conduit member having a forward end disposed alongside said first end of said housing assembly, said forward end being formed with a selectably closable slit and with at least one side opening;said resilient fluid flow conduit member being positionable in a closed position wherein said slit is closed but said at least one side opening is open;said resilient fluid flow conduit member being positionable in an open position, thereby allowing said slit to open and leaving said at least one side opening open, whereby when said resilient fluid flow conduit member is in said open position, said selectably closable slit and said at least one side opening each provide a fluid flow pathway between an interior of said resilient fluid flow conduit member and said first end of said housing assembly,said resilient fluid flow conduit member including: a displacement engagement location formed rearwardly of said forward end for engagement of said resilient fluid flow conduit member by a displacement actuator to provide rearward displacement of said resilient fluid flow conduit member relative to said housing assembly along said longitudinal axis;a generally cylindrical portion extending rearwardly of said displacement engagement location and having a forward part and a rearward part; anda radially outwardly extending tensionable connecting portion integrally joined to said generally cylindrical portion at a joining location rearwardly spaced from said displacement engagement location intermediate said forward part and said rearward part,said resilient fluid flow conduit member being formed with a radially outer sealing surface extending radially outward from a rearward end thereof,said housing assembly including a rearward conduit extending forwardly from said second end, andsaid radially outer sealing surface of said resilient fluid flow conduit member and an inner facing surface of said rearward conduit being in slidable sealing engagement, said sealing engagement preventing fluid which enters said fluid flow connector via said rearward conduit from entering a volume rearward of said connecting portion, thereby preventing said volume from acting as a “dead space” which could undesirably retain said fluid. 21. A fluid flow connector according to claim 17 and wherein said sealing ring of said resilient fluid flow conduit member and said interior bore of said forward conduit are in slidable sealing engagement, said sealing engagement preventing fluid which passes through said slit and said at least one side opening from entering a volume within said interior bore rearward of said sealing ring, thereby preventing said volume from acting as a “dead space” which could undesirably retain said fluid. 22. A fluid flow connector according to claim 20 and wherein said slidable sealing engagement between said radially outer sealing surface of said resilient fluid flow conduit member and an inner facing surface of said rearward conduit and said slidable sealing engagement between said sealing ring of said resilient fluid flow conduit member and said interior bore of said forward conduit together maintain a pressurized fluid seal for pressurized fluid in said rearward conduit and in said resilient fluid flow conduit member. 23. A fluid flow connector comprising: a housing assembly having an externally threaded end and an internally threaded end arranged along a common longitudinal axis at opposite ends thereof; anda resilient fluid flow conduit member disposed within said housing assembly and arranged for displacement along said common longitudinal axis, said resilient fluid flow conduit member defining a fluid flow pathway extending interiorly thereof along said longitudinal axis between a rearward end thereof adjacent said externally threaded end of said housing assembly and a forward end thereof adjacent said internally threaded end of said housing assembly;said resilient fluid flow conduit member having at least one opening at said forward end thereof, enabling fluid communication between said fluid flow pathway and a location outside of said forward end;said resilient fluid flow conduit member having a displacement engagement location formed rearwardly of said forward end for engagement of said resilient fluid flow conduit member by a displacement actuator to provide rearward displacement of said resilient fluid flow conduit member relative to said housing assembly between a closed position and an open position along said longitudinal axis;said resilient fluid flow conduit member having a generally cylindrical portion extending rearwardly of said displacement engagement location and having a forward part and a rearward part; andsaid resilient fluid flow conduit member having a radially outwardly extending tensionable connecting portion integrally joined to said generally cylindrical portion at a joining location rearwardly spaced from said displacement engagement location intermediate said forward part and said rearward part,said radially outwardly extending tensionable connecting portion of said resilient fluid flow conduit member being pre-tensioned and thereby urging said resilient fluid flow conduit member to said closed position. 24. A fluid flow connector according to claim 23 and wherein said tensionable connecting portion terminates in a generally circularly cylindrical mounting portion. 25. A fluid flow connector according to claim 24 and wherein said generally circularly cylindrical mounting portion is locked within said housing assembly intermediate said internally threaded end and said externally threaded end. 26. A fluid flow connector according claim 23 and wherein said resilient fluid flow conduit member defines a generally incompressible fluid flow pathway extending axially along an interior thereof between said rearward end thereof and said forward end thereof. 27. A fluid flow connector according to claim 23 and wherein said at least one opening at said forward end thereof comprises a selectably closable slit extending along said longitudinal axis. 28. A fluid flow connector according to claim 27 and wherein when said resilient fluid flow conduit member is positioned in said closed position, said forward end engages a forward conduit having a forwardly facing aperture, thereby closing said slit, thereby sealing said forwardly facing aperture. 29. A fluid flow connector according to claim 28 and wherein when said resilient fluid flow conduit member is positioned in said open position, said forward end does not engage said forward conduit, thereby allowing said slit to open and thereby unsealing said forwardly facing aperture. 30. A fluid flow connector according to claim 23 and wherein said resilient fluid flow conduit member is displaceable, against the urging produced by said radially outwardly extending tensionable connecting portion its being pre-tensioned, to said open position. 31. A fluid flow connector according to claim 28 and wherein said forward conduit is formed with an interior bore having a forwardly tapered portion. 32. A fluid flow connector according to claim 31 and wherein when said resilient fluid flow conduit member is positioned in said closed position, said forward end sealingly engages said forwardly tapered portion of said interior bore, thereby squeezing said forward end transversely to said longitudinal axis and thereby closing said slit. 33. A fluid flow connector according to claim 31 and wherein: said resilient fluid flow conduit member is formed with an elongate bore which defines a fluid flow conduit, andwhen said resilient fluid flow conduit member is positioned in said open position said forward end is rearwardly positioned out of engagement with said forwardly tapered portion of said interior bore, thereby unsealing said forwardly facing aperture, allowing said slit to open, thereby providing fluid communication between said elongate bore of said resilient fluid flow conduit member, an exterior of said resilient fluid flow conduit member, said interior bore of said forward conduit and said forwardly facing aperture, via said slit. 34. A fluid flow connector according to claim 23 and wherein said displacement actuator is arranged to be displaced rearwardly along said longitudinal axis by engagement therewith of a rearwardly facing end of an external conduit, which engages said internally threaded end. 35. A fluid flow connector according to claim 31 and wherein: said forward end is formed with a forwardly tapered portion and a tip portion, forwardly of said forwardly tapered portion of said forward end, said tip portion having an oval cross section, which is compressible into a circular cross section; andsaid at least one opening extends through said forwardly tapered portion of said forward end and through said tip portion. 36. A fluid flow connector according to claim 35 and wherein when said resilient fluid flow conduit member is positioned in said closed position, axial pressure engagement of said forwardly tapered portion of said forward end with said forwardly tapered portion of said interior bore of said forward conduit is operative to squeeze said forward end of said resilient fluid flow conduit member transversely to said longitudinal axis, thereby closing said slit and changing a generally oval configuration of said forwardly tapered portion of said forward end to a generally circular configuration. 37. A fluid flow connector according to claim 36 and wherein when said resilient fluid flow conduit member is positioned in said open position, elimination of axial pressure engagement of said forwardly tapered portion of said forward end with said forwardly tapered portion of said interior bore of said forward conduit causes said forward end of said resilient fluid flow conduit member to no longer be squeezed transversely to said longitudinal axis, thereby allowing said slit to open and allowing said forwardly tapered portion of said forward end to return to said generally oval configuration. 38. A fluid flow connector comprising: a housing assembly having an externally threaded end and an internally threaded end arranged along a common longitudinal axis at opposite ends thereof; anda resilient fluid flow conduit member disposed within said housing assembly and arranged for displacement along said common longitudinal axis, said resilient fluid flow conduit member defining a fluid flow pathway extending interiorly thereof along said longitudinal axis between a rearward end thereof adjacent said externally threaded end of said housing assembly and a forward end thereof adjacent said internally threaded end of said housing assembly;said resilient fluid flow conduit member having at least one opening at said forward end thereof, enabling fluid communication between said fluid flow pathway and a location outside of said forward end;said resilient fluid flow conduit member having a displacement engagement location formed rearwardly of said forward end for engagement of said resilient fluid flow conduit member by a displacement actuator to provide rearward displacement of said resilient fluid flow conduit member relative to said housing assembly between a closed position and an open position along said longitudinal axis;said resilient fluid flow conduit member having a generally cylindrical portion extending rearwardly of said displacement location and having a forward part and a rearward part;said resilient fluid flow conduit member having a radially outwardly extending tensionable connecting portion integrally joined to said generally cylindrical portion at a joining location rearwardly spaced from said displacement engagement location intermediate said forward part and said rearward part,said at least one opening at said forward end thereof comprising a selectably closable slit extending along said longitudinal axis,said forward end engaging a forward conduit having a forwardly facing aperture, when said resilient fluid flow conduit member is positioned in said closed position, thereby closing said slit, thereby sealing said forwardly facing aperture,said forward conduit being formed with an interior bore having a forwardly tapered portion;said resilient fluid flow conduit member being formed with a radially outer sealing surface extending radially outward from said rearward end thereof; andsaid radially outer sealing surface of said resilient fluid flow conduit member and an inner facing surface of a rearward conduit extending forwardly from said externally threaded end being in slidable sealing engagement, said sealing engagement preventing fluid which enters said fluid flow connector via said rearward conduit from entering a volume rearward of said connecting portion, thereby preventing said volume from acting as a “dead space” which could undesirably retain said fluid. 39. A fluid flow connector according to claim 38 and wherein: said resilient fluid flow conduit member is formed with a sealing ring extending radially outward therefrom, slightly rearwardly of said forward end; andsaid sealing ring of said resilient fluid flow conduit member and said interior bore of said forward conduit are in slidable sealing engagement, said sealing engagement preventing fluid which passes through said slit from entering a volume within said interior bore rearward of said sealing ring, thereby preventing said volume within said interior bore from acting as a “dead space” which could undesirably retain said fluid which passes through said slit. 40. A fluid flow connector according to claim 39 and wherein said slidable sealing engagement between said radially outer sealing surface of said resilient fluid flow conduit member and said inner facing surface of said rearward conduit and said slidable sealing engagement between said sealing ring of said resilient fluid flow conduit member and said interior bore of said forward conduit together maintain a pressurized fluid seal for pressurized fluid in said rearward conduit and in said resilient fluid flow conduit member.
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