Patent ID: 7931621
Filing Date: 2011-04-26
Classification: A61M

Abstract:
1. A cannula assembly comprising: a cannula subassembly including a substantially planar base having a first surface and a second surface, the first surface being opposite the second surface and adapted to adhere to a patient's skin, a cannula projecting from the base first surface at a preset angle other than ninety degrees with respect to the patient's skin so as to be beneath the patient's skin when the subassembly is deployed, and a generally cylindrical docking structure having a center axis substantially perpendicular to the base second surface and arranged to receive a source of liquid medicament to be dispensed from the cannula; and a cannula driver arranged to drive the cannula subassembly base first surface to a deployed position on the skin of the patient along a path defining the preset angle with respect to the patient's skin.