Patent ID: 7025744
Filing Date: 2006-04-11
Classification: A61M

Abstract:
1. 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 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 generally rigid retention zone surrounding said central opening, to engage and retain a connector tube having a leading end which is advanced into said central opening to displace said elastomeric wall to weaken the resistance to flow of a closed perforation extending substantially through said elastomeric wall, said retention zone being sized to engage and hold said connector tube before said leading end completely penetrates said elastomeric wall, whereby the perforation of said elastomeric wall remains sealed, but can be opened for fluid flow by application of a low pressure differential in one direction to cause fluid flow through the perforation of said elastomeric wall, while said elastomeric wall exhibits a substantially higher resistance to said fluid flow under pressure when said elastomeric wall is not displaced by said connector tube.