Patent ID: 7731691

Claim:
A method for introducing an infusion device into a subcutaneous layer of skin of a patient, comprising: providing an infusion device preloaded onto a needle of an insertion device so that the needle extends through a cannula of the infusion device, and a sleeve coupled to a housing of the insertion device that hides the needle prior to retraction, wherein the needle is coupled to the housing of the insertion device so that, as the housing is moved relative to the sleeve, the needle is moved relative to the sleeve; positioning the insertion device adjacent to the skin of the patient; allowing a patient to manually introduce the cannula of the infusion device into a subcutaneous layer of skin of the patient by manually moving the housing and the needle of the insertion device relative to the sleeve from a retracted position to an extended position, wherein manually moving the needle is accomplished by allowing the patient to move the housing relative to the sleeve towards the skin of the patient; and upon full manual insertion of the cannula by the insertion device and the insertion device reaching a trigger state, automatically moving the needle of the insertion device from the extended position to the retracted position while leaving the sleeve in contact with the skin of the patient.