Luer receiver and method for fluid transfer
First Claim
1. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
- a housing defining a chamber and at least two integral ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; and
an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum;
wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, the slit defining a long transverse axis, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and
at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;
said housing at said second port defines a bore having a proximal end, said housing at said second port having an upward-facing surface adjacent said proximal end, at least a portion of said septum upper portion being mounted above said upward-facing surface.
1 Assignment
0 Petitions
Accused Products
Abstract
An improved luer lock receiving septum having a configuration which provides rapid and tight resealing and yet allows penetration of the septum by the luer tip with a low penetration force. The elongated septum includes an upper portion of enlarged diameter having a target surface, a central slit, and a central, lower septum extension projecting about the slit below the upper portion and into a housing so that following luer insertion there is provided sufficient room for both the laterally displaced extension of the septum, the luer taper, and the housing to be received into a conventional luer lock connector. The septum is further preferably configured to minimize or eliminate the negative pressure deflection normally associated with the withdrawal of the large diameter luer cannula from an enclosed fluid filled lumen or chamber, by substantially isolating the lumen or chamber from the septum material displacement resultant from luer insertion. In an exemplary embodiment, the luer receiving septum is provided at a port of a stop cock.
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Citations
34 Claims
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1. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two integral ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; and an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, the slit defining a long transverse axis, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;said housing at said second port defines a bore having a proximal end, said housing at said second port having an upward-facing surface adjacent said proximal end, at least a portion of said septum upper portion being mounted above said upward-facing surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 22, 23)
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15. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;said housing at said second end defines a bore having a proximal end, said housing having a projecting portion adjacent said proximal end, said projecting portion projecting against and capturing at least a portion of said septum adjacent said proximal end. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, the slit defining a long transverse axis, a sealing force being applied by a portion of said housing to said septum adjacent said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis to seal said slit at said outer face, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum.
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24. A luer receiver for receiving a male luer tip, the receiver comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber; and a septum having a longitudinal axis and mounted to said housing so as to be disposed at least partially within one of said ports, said septum being formed at least in part from a first elastomeric material and having a proximal portion, an extension portion, and a central slit defined at least partially therethrough, said septum proximal portion including an upper portion having a width greater than a width of said extension portion; a proximal end of said one port of said housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform, wherein said ring structure includes diametrically opposed radially inwardly extending projections. - View Dependent Claims (25, 26)
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27. A luer receiver for receiving a male luer tip, the receiver comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber; and a septum having a longitudinal axis and mounted to said housing so as to be disposed at least partially within one of said ports, said septum being formed as least in part from a first elastomeric material and having a proximal portion, an extension portion, and a central slit defined at least partially therethrough, said septum proximal portion including an upper portion having a width greater than a width of said extension portion, a proximal end of said one port of said housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform, wherein at least first and second diametrically opposed lateral voids are defined in said one port of said housing, distal of said ring structure. - View Dependent Claims (28)
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29. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit defining a long transverse axis and extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum; wherein said housing has an upward facing upper surface at said second port, said upward facing upper surface at least partially inducing said sealing force and wherein said septum includes an upper portion mounted above said upward facing upper surface of said housing.
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30. A luer receiver for receiving a male luer tip, the receiver comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber; a septum having a longitudinal axis and mounted to said housing so as to be disposed at least partially within one of said ports, said septum being formed at least in part from a first elastomeric material and having a proximal portion, an extension portion, and a central slit defined at least partially therethrough, said septum proximal portion including an upper portion having a width greater than a width of said extension portion, a proximal end of said one port of said housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform, wherein upper surfaces of diametrically opposed first and second portions of said ring structure are inclined from a more distal radially inner edge to a more proximal radially outer edge.
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31. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter, said housing having an upward facing upper surface at said second port; and an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and, a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said, fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face, said upper portion mounted above said housing upward facing upper surface, and an extension portion projecting downwardly from said upper portion, said slit defining a long transverse axis and extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit adjacent said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis, said sealing force at least partially induced by said housing upward facing upper surface, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum.
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32. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit defining a long transverse axis and extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said sealing force comprising at least one of an upward force and a force directed to a greater extent toward the long transverse axis of the slit than parallel to said long transverse axis, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;said housing defines a proximal end of said second port; and at rest, at least a portion of said septum upper portion is deflected upward by said housing, adjacent said proximal end, to forcibly seal said slit at said septum outer face.
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33. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;said housing defines a proximal end of said second port; and said housing further comprises a means for capturing said septum against proximal displacement, said means positioned adjacent said proximal end for projecting inwardly against and capturing said septum adjacent said proximal end.
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34. A luer receiving valve, for fluid connection between a catheter in communication with a patient'"'"'s vasculature and at least one fluid system, the fluid system having a luer lock connector including a luer tip, the luer receiving valve comprising:
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a housing defining a chamber and at least two ports in fluid communication with the chamber, a first one of said ports being adapted for fluid connection to said catheter; an elastomeric septum mounted to said housing so as to be disposed at least partially within a second of said ports, said septum having an outer face and a sealed slit, said second port being sized to receive said luer tip of said fluid system luer lock connector, said second port defining a female luer sized to be received into and lockingly engaged with said luer lock connector of said fluid system when said luer tip is advanced against said septum; wherein said septum has a longitudinal axis, an upper portion with said outer face and an extension portion projecting downwardly from said upper portion, said slit extending from adjacent said outer face through said upper portion and at least partially through said extension portion, a sealing force being applied by said housing to said septum adjacent said outer face thereby to seal said slit at said outer face, said extension portion having a width in a direction transverse to said slit that is less than a transverse width of said upper portion, said septum and said slit therein being sized and configured to receive at least a portion of said male luer end into said septum through said face and through at least a portion of said slit, at least a portion of said septum being displaced lateral to said longitudinal axis by said luer tip when said luer tip is advanced into said septum to define a displaced septum portion; and at least one cavity defined lateral to said septum for receiving said displaced septum portion when said luer tip is advanced into said septum;
wherein;said housing at said second port defines a longitudinal axis and a bore extending along said axis, said bore having a proximal end;
said housing at said second port having a projecting portion adjacent said proximal end extending inwardly at least partially transverse to said longitudinal axis, said projecting portion projecting above at least a portion of said septum, engaging said septum so that said housing captures said septum adjacent said proximal end.
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Specification