Luer receiver and method for fluid transfer
First Claim
1. A luer receiver for receiving a male luer tip, the receiver comprising:
- a housing defining an inner wall, the housing having a proximal end and a distal end and a bore extending from said proximal end towards distal end, a proximal end of said housing being sized to be received into said luer lock connector, a septum having a longitudinal axis and mounted to said housing so as to be disposed at least partially within said bore adjacent said proximal end, said septum having an upper portion with an upper face, an extension portion projecting downwardly from said upper portion, and a slit extending from adjacent said upper face through said upper portion and at least partially through said extension portion, a force being applied by said housing to said septum adjacent said upper face thereby to seal said slit adjacent said upper 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.
2 Assignments
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.
807 Citations
65 Claims
-
1. A luer receiver for receiving a male luer tip, the receiver comprising:
-
a housing defining an inner wall, the housing having a proximal end and a distal end and a bore extending from said proximal end towards distal end, a proximal end of said housing being sized to be received into said luer lock connector, a septum having a longitudinal axis and mounted to said housing so as to be disposed at least partially within said bore adjacent said proximal end, said septum having an upper portion with an upper face, an extension portion projecting downwardly from said upper portion, and a slit extending from adjacent said upper face through said upper portion and at least partially through said extension portion, a force being applied by said housing to said septum adjacent said upper face thereby to seal said slit adjacent said upper 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A medical luer receiver, comprising:
-
a housing having a proximal portion, a central portion, and a distal portion, and a bore extending axially through said proximal portion and said central portion into said distal portion;
a septum 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 housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
-
-
48. A luer receiver for connecting with a luer lock connector having a male luer tip and a surrounding female threaded end, the receiver comprising:
-
a housing having a side wall, a proximal end, a distal end, and a bore extending from said proximal end towards distal end, said proximal end of said housing being sized to be received into said luer lock connector, said housing further including a transverse wall portion;
a septum having a longitudinal axis and mounted at least partially within said bore adjacent said proximal end, said septum having an upper face and a slit extending from said face at least partially through said septum, said septum 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;
a receptacle being defined by said transverse wall portion and said side wall, said receptacle and said septum being sized and configured such that said displaced septum portion is received into said receptacle under said wall portion and into contact with said side wall when said luer tip is advanced into said slit. - View Dependent Claims (49, 50, 51, 52, 53)
-
-
54. A luer receiver for connecting with a luer lock connector having a male luer tip and a surrounding female threaded end, the receiver comprising:
-
a housing having an inner wall, a proximal end, a distal end, and a bore extending from said proximal end towards distal end, said proximal end of said housing being sized to be received into said luer lock connector, a septum defining a longitudinal axis and mounted at least partially within said bore adjacent said proximal end, said septum having an upper face and a slit extending from said face at least partially through said septum, said septum 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, at least one cavity defined at a periphery of said septum for receiving at least a portion of said displaced septum portion upon insertion of said tip into said septum, said cavity having a distal end, and a seal being provided adjacent said distal end of said cavity for sealing said cavity. - View Dependent Claims (55, 56, 57)
-
-
58. A method of placing a septum of a luer receiver having a slit into a configuration inducing enhanced sealing, the septum having a proximal end defining an outer face and a slit extending from said outer face at least partially through said septum, the septum further including a lateral portion, the method including the step of:
displacing said lateral portion of said septum in a generally proximal direction, said displacement of said lateral portion inducing tight sealing of said slit at said face. - View Dependent Claims (59, 60, 61, 62)
-
63. A method for the transfer of fluid, comprising the steps of:
-
providing a medical luer receiver, including;
a housing having a proximal portion, a central portion, and a distal portion, and a bore extending axially through said proximal and said central portions into said distal portion; and
a septum formed at least in part from an elastomeric material and having an outer face, 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 housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform;
pressing a male luer tip of another medical device against the outer face of the septum, the ring structure holding the upper portion of the septum in position while the luer tip penetrates into the slit and into the septum;
deflecting walls of said slit laterally such that opposing inner faces of said walls directly press against an outer wall of said cannula after the luer tip has been advanced into the slit, and flowing liquid through the luer tip and into said distal portion of said housing. - View Dependent Claims (64)
-
-
65. A method of transferring medical liquid between a medical liquid storage container and a chamber using a luer connector, the connector having a central male luer cannula, the connector being mounted in fluid connection with the container, the chamber having a luer receiver mounted in flow communication therewith, the receiver including a housing having an inlet, the housing containing a sealing septum mounted adjacent the inlet, the septum having an upper portion including an outer face and a perforation, the septum including a septum extension projecting axially of the housing, said septum upper portion having a width greater than a width of said septum extension, a proximal end of said housing comprising a substantially continuous ring structure defining a platform, said upper portion of said septum being seated on said platform;
-
the method comprising steps of;
pressing a tip of the male luer cannula against the outer face, the ring structure holding the upper portion of the septum in position adjacent the inlet such that the upper portion is held while the luer tip penetrates into the slit and into the outer face of the septum and into the extension, deflecting the extension laterally with the luer cannula such that the extension is elastically expanded within the housing in direct contact with the male luer cannula, the cannula penetrating at least partially through the extension into fluid connection with the chamber, and flowing liquid through the luer tip and into the chamber.
-
Specification