Patent ID: 8262627
Filing Date: 2012-09-11
Classification: A61M

Abstract:
1. An infusion device comprising: a body having a body passageway, a single inlet port that provides the body's only access for delivering medication to the body passageway, a top, a bottom, and an accessible surface that generally gets broader from the top to the bottom; an adhesive laminate member coupled to the bottom of the body; a polymer cannula having a portion extending from the body, including a portion that will be beneath a patient's skin surface when the infusion device is used, the cannula also having a portion closer to the top of the body than is the adhesive laminate member; and a septum positioned within the body passageway but not in contact with the cannula, the septum having a top, a bottom, and an outer surface that includes an inwardly-tapered portion; the septum also having a cross-section positioned parallel to an axis that is that is parallel to and centered in a portion of the body passageway, the septum cross-section having (a) a first dimension that is parallel to the axis and (b) a second dimension that is perpendicular to the axis and greater than the first dimension; the body passageway having an inwardly-tapered portion that is closer to the cannula than is the top of the septum; the infusion device being configured such that the portion of the cannula that will be beneath the patient's skin surface when the infusion device is used will extend a fixed length beneath the skin surface during normal use of the infusion device.