Patent ID: 8377039

Claim:
A medical device having an interior for containment of fluids; an opening into the interior; an elastomeric wall comprising a fixedly placed, flexible barrier across said opening and having at least one closed perforation centrally positioned; and a retention wall positioned adjacent to a peripheral portion of said elastomeric wall, said retention wall defining a central opening, said retention wall having a retention zone surrounding said central opening, to engage and retain a connector tube having a length and having a leading end which is advanced into said central opening to press against and partially displace said elastomeric wall, and to open said centrally positioned perforation through said elastomeric wall, for direct flow through said perforation into said connector tube, said retention zone being made of a material of sufficient hardness that material of a minor portion of the length of an engaged and retained connector tube is deformed by engagement with the retention zone, to increase strength of retention between the retention wall and the connector tube, said retention zone being sized to engage and hold said connector tube before said leading end fully penetrates said elastomeric wall.