Patent ID: 7309326

Claim:
An infusion set comprising: a generally round base having upper and lower sides, an outer edge, a base cannula extending downwardly from the lower side, a retaining rim disposed at the outer edge, and a port extending upwardly from the upper side, the port being in fluid communication with the base cannula, and the port comprising a septum of a different material from the port, positioned above the retaining rim, and adapted to seal said port from fluid communication therethrough; an adhesive layer mounted to the lower side of the base; an introducer cap adapted to be pressed against and cover substantially all of the upper side of the base and to be removably coupled to the base at the outer radial periphery of the retaining rim, the introducer cap comprising upper and lower sides, and a needle extending downwardly from the lower side, the needle being adapted to extend through the septum on the upper side of the base and through the base cannula on the lower side of the base, whereby the attached base and introducer cap are adapted to be pressed against a patient's skin such that the introducer needle pierces the skin and the adhesive layer on the lower side of the base contacts the skin; and an infusion cap comprising an upper side and a lower side, the infusion cap being adapted to be pressed against and generally cover the upper side of the base and to be removably attached to the base at the retaining rim after disengagement of the introducer cap from the base such that a foot disposed on the infusion cap extends radially inwardly farther than the outer radial periphery of the retaining rim, the infusion cap being adapted to rotate with respect to the base while engaged, the infusion cap comprising an infusion cannula extending downwardly from the lower side of the infusion cap, and an elongate flexible lumen in fluid communication with the infusion cannula, the infusion cannula being adapted to extend through the septum on the upper side of the base upon engagement of the infusion cap and the base to place the flexible lumen and the infusion cap in fluid communication with the base cannula.