Luer-receiving medical valve and fluid transfer method

A medical valve for receiving a male luer having an open distal end and for selectively providing fluid communication, said valve comprising:

• a. a male luer having a distal end and an opening therethrough;
• b. a housing having a proximal end and a distal end and a bore, the bore defining a longitudinal axis extending through said housing from said proximal end to said distal end;
• c. said housing including a proximal portion for receiving said male luer end and a distal portion;
• d. an elastomeric septum piston disposed within said bore, the septum piston being moveable along the longitudinal axis of said housing from a proximal position adjacent said proximal portion to a distal position adjacent said distal portion, the septum piston having a sealed perforation extending through said septum piston, said distal region compressing said septum piston when said septum piston is displaced by the distal end of said male luer from said proximal position into said distal position, said compression of said septum piston including an opening through said septum piston.

A medical valve for the transfer of fluid from a fluid receptacle in fluid communication with a connection terminal having an open male end to a tubing system in fluid communication with a patient's blood vessel, the valve comprising:

• a. an outer region support housing defining a longitudinal axis;
• b. a lumen extending within said outer region support housing, said lumen having an inlet and an outlet;
• c. flexible elastomeric occluding member for occluding said inlet, said flexible elastomeric occluding member having an outer face for contact with a male end of a connection terminal and further having a perforation therethrough, said perforation having an upper end adjacent said outer face, at least a portion of said flexible elastomeric occluding member being displaceable along said outer region support housing from a first position wherein said upper end of said perforation is closed to a second position wherein said upper end of said perforation is open;
• d. at least one portion of said outer region support housing being sized and configured to narrow said lumen, said at least one portion functioning to compress said flexible elastomeric occluding member, displacement of said flexible elastomeric occluding member inducing compression of said perforation to open said perforation and to provide fluid communication between an open male end of a connection terminal and said outlet.

A medical valve for receiving a male luer connector having an open distal end and for providing fluid communication, said valve comprising:

• a. a housing having a proximal end and a distal end and a bore, the bore defining a longitudinal axis extending through said housing from said proximal end toward said distal end, said housing including a cylindrical proximal portion, said proximal portion being sized for receiving said male luer distal end and to engage threads of said male luer connector, said housing further including a distal portion;
• b. at least one rigid member mounted within said bore;
• c. an elastomeric septum piston disposed within said bore, said septum piston having at least one longitudinal elastomeric wall, a transverse elastomeric face and a longitudinal slit defined therethrough, the septum piston being moveable distally along the longitudinal axis of said housing from a proximal position adjacent said proximal portion to a distal position, a longitudinal space being defined within said piston at least when said piston is in said distal position, said rigid member being mounted within said bore so that said distal movement of said piston along said longitudinal axis induces a transverse pressing force between said at least one rigid member and said elastomeric piston, said force being transmitted in a direction transverse to said longitudinal axis to deflect said longitudinal elastomeric wall and displace open said longitudinal slit without said rigid member contacting said slit to thereby open fluid communication between said space within said piston and said male luer connector, said space being elastically enlarged by said rigid member as said piston is moved distally, said fluid entering said space upon said distal movement;
• e. said piston being further movable proximally from said distal position toward said proximal position, said longitudinal elastomeric wall rebounding to close said slit to thereby close fluid communication between said space and said male luer connector and to elastically diminish said space to express fluid from within said space upon said movement proximally such that said fluid expressed from within said space is expressed, relative said piston, in a direction opposite the movement of said piston.