Patent ID: 6896893

Claim:
A method of administering a medicament parenterally to a patient without the use of a needle, the method comprising: providing a needle-less device comprising: a housing; a barrel member connected to the housing, the barrel member comprising a bore for receipt of the medicament, the bore having first and second ends; a fluid reservoir arranged within the housing; a conduit arranged to conduct fluid from the reservoir to the first end of the bore in the barrel member; a valve arranged within the conduit between the reservoir and the first end of the bore; an operating button operatively connected on the valve, wherein the operating button is depressed to open the valve to enable fluid to flow from the reservoir through the conduit and into the first end of the bore to move the medicament in the bore out of the second end of the bore and through the skin of a patient when the barrel member is pressed against the skin of the patient; contacting the barrel member to the patient's skin; and depressing the operating button, thereby forcing the medicament through the skin, to thereby administer the medicament to the patient.