Luer receiver and method for fluid transfer

摘要

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.

主权项

1. A luer receiving valve, for fluid connection with a luer lock connector including a male luer having a distal tip, the luer receiving valve comprising:
a housing defining a proximal portion, a chamber, an inlet and an outlet, the proximal portion being sized to be received into and lockingly engaged within the luer lock connector; an elastomeric member comprising a septum defining a longitudinal axis and mounted to said housing so as to be disposed at least partially within the inlet, said septum having a proximal portion and a proximal face; a sealed slit extending at least partially through the septum, the slit being sized to receive at least a portion of said male luer into said septum through said face and through at least a portion of said slit as said proximal portion of the housing is received into and lockingly engaged with the luer lock connector, at least a portion of said septum being displaced lateral to said longitudinal axis by the penetrating male luer when the male luer is advanced into said septum, the luer lock connector defining a narrow space lateral to the male luer, the narrow space having a width less than the diameter of the male luer, the septum being configured so that the extent of lateral expansion of the septum is contained within said narrow space when the male luer is advanced into the septum so that the luer receiving valve can be threaded into the limited confines of the cylindrical luer lock connector; the proximal portion of the housing being configured to apply a longitudinal force to the elastomeric member to longitudinally displace at least a portion of the elastomeric member, the longitudinal force inducing an inwardly directed sealing force to the slit.