Patent ID: 7993306
Filing Date: 2011-08-09
Classification: A61M

Abstract:
1. A site for a subcutaneous infusion device, the site comprising: a base including a surface that is oriented towards skin of a patient; and a cannula extending from the surface of the base and configured to be introduced into a subcutaneous layer of skin of the patient at a generally ninety-degree angle with respect to the skin using a needle; wherein the cannula includes first and second ends and defines a bore extending from the first end to the second end, the first end being coupled to the base, and the second end being positionable in the skin; wherein the cannula includes a tapered wall portion formed at the first end and extending from adjacent to the surface of the base towards the second end of the cannula that is positionable in the skin, the tapered wall portion being tapered along its entirety from a greater wall thickness to a lesser wall thickness as the tapered wall portion extends through the base towards the second end; wherein the tapered wall portion extends outside the surface of the base into the skin and is spaced apart from the second end of the cannula that is positionable in the skin; and wherein the first end of the cannula includes a flanged portion having a bottom side configured to engage a bottom surface in a cavity of the base, and a tapered top side opening into the cavity, and wherein the cannula extends through a central aperture of the base generally perpendicular to the base such that the second end of the cannula is positioned outside the base.