Patent ID: 8394060
Filing Date: 2013-03-12
Classification: A61M,Y10T

Abstract:
1. A method of preventing condensate on an interior window portion contained in a housing in a reservoir unit for an insulin pump device, wherein the window allows a user to inspect the drug contained in the reservoir, the method comprising the steps of: placing the reservoir unit in a refrigerator and allowing it to reach a first stable condition having a first temperature and humidity; removing the reservoir unit from the refrigerator and placing it in an environment with a second temperature and humidity, wherein the second temperature is higher than the first temperature; venting an interior portion of housing to the ambient air; wherein the venting allows an 80% pressure equalization between the interior of the housing and the exterior at a pressure differential of 350 mBar in less than 60 minutes and wherein the venting allows ambient aqueous vapour to pass from the exterior to the interior of the reservoir unit; and preventing visible water condensation from forming on the interior surface of the window portion.