Patent ID: 8647312

Claim:
A medical device comprising: a connector tube; and an injection site comprising: an interior for containment of fluids; an opening into the interior; an elastomeric wall including a flexible barrier having a width at least as great as its depth positioned across said opening; and a retention wall positioned adjacent to a peripheral portion of said elastomeric wall, wherein said retention wall defines a central opening, said elastomeric wall has a periphery that is retained in a fixed position relative to said retention wall, said retention wall has a retention zone surrounding said central opening to engage and retain said connector tube with a leading end that is advanced into said central opening to open a perforation defined through said elastomeric wall for flow through said wall and connector tube, said retention zone and said connector tube are constructed such that a generally annular indentation is formed by engagement of the connector tube with the retention zone, and said retention zone is sized to engage and retain said connector tube before said leading end enters said perforation.