Patent ID: 8066680
Filing Date: 2011-11-29
Classification: A61D,A61M

Abstract:
1. A method of injecting a medical substance into the skin using a delivery device so that the medical substance is only injected into the dermis layer of the skin, comprising the steps of: providing said delivery device comprising a prefillable container adapted for storing a medical substance; pressing a needle cannula attached to said delivery device said needle cannula having a forward tip extending away from said delivery device and a hub portion secured around said needle cannula and a limiter portion surrounding said needle cannula and extending away from said hub portion toward said forward tip of said needle cannula, said limiter portion, said forward tip extending a pre-selected fixed distance beyond a skin engaging surface of approximately 0.5 mm to approximately 3 mm, engaging the surface of the skin with the skin engaging surface extending in a plane generally perpendicular to an axis of said needle cannula wherein said limiter portion limits penetration of said needle cannula into the dermis layer of the skin of the animal thereby injecting substance into the dermis layer of the animal; wherein said hub portion defines a locator for said limiter thereby positioning said limiter upon said device; and deploying an enclosure for concealing said needle cannula after administering said intradermal injection, wherein said enclosure does not comprise any portion of said limiter.