Patent ID: 7241285

Claim:
A medical site connector for connecting a fluid passage and a needleless injection site, the needleless injection site comprising a housing and a valve element contained within the housing, the valve element having a thin diaphragm and the housing having an inwardly extending flange defining an inner surface surrounding an exposed surface of the thin diaphragm, the connector comprising: a cannula for engaging the exposed surface of the thin diaphragm sufficiently to open the thin diaphragm to establish an open fluid passage wherein the cannula has a reduced diameter smaller than the diameter of the inner surface of the flange; a collar surrounding the cannula for engaging the housing of the injection site; and an enlarged annular land portion extending axially from a back interior surface of the connector and surrounding the cannula, the annular land portion defining an outer surface for engaging within the inner surface of the flange for forming an interference fit with the inner surface.