Patent ID: 8657788

Claim:
An infusion set comprising: a base having upper and lower sides, a rigid base cannula permanently attached to and extending downwardly from a portion of the lower side, below a port extending upwardly from the upper side, the port being in fluid communication with the rigid base cannula, and the port comprising a septum adapted to substantially seal said port from fluid communication therethrough; a needleless introducer cap adapted to be pressed against the upper side of the base and removably coupled to the base, the introducer cap comprising upper and lower sides and at least one generally flat surface for grasping the introducer cap and base assembly, whereby the coupled base and introducer cap assembly is adapted to be pressed against a patient's skin such that the rigid base cannula pierces the skin and an adhesive layer on the lower side of the base contacts the skin; a infusion cap comprising: an upper side and a lower side, the infusion cap being adapted to be pressed against the upper side of the base and removably attached to the base after disengagement of the introducer cap from the base and being adapted to rotate with respect to the base about an axis that is generally perpendicular to the lower side of the base while the infusion cap and the base are engaged; an infusion cannula extending downwardly from the lower side of the infusion cap; at least one retention member configured to engage the base, thereby removably coupling the infusion cap to the base; releasing members configured to release the at least one retention member from the base 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 rigid base cannula; wherein the needleless introducer cap is configured to be removed from the base prior to attachment of the infusion cap to the base.