Patent ID: 7033339

Claim:
A luer receiving stopcock, 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 stopcock comprising: a housing defining a central chamber and at least three integral ports in fluid communication with the central chamber, a first one of said ports being adapted for fluid connection to said catheter; a core mounted in sealed relation to said central chamber and rotatable therewithin, said core having a flow passage defined therethrough that extends between at least first and second orifices in a surface of said core for selectively communicating respective pairs of ports of said housing; 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 a portion of said housing to said septum adjacent said outer face thereby to induce a dominant seal creating force serving 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.