Patent ID: 7935090
Filing Date: 2011-05-03
Classification: A61M

Abstract:
1. An infusion device comprising: a body having a body passageway and a bottom; an adhesive laminate member attached to the bottom; a cannula having a portion extending from the body, and a cannula passageway defined by a cannula passageway wall that has (a) an inwardly-tapered portion positioned above the adhesive laminate member, and (b) a cannula passageway wall portion that surrounds infusion device material that directly borders open space within the body passageway, the cannula passageway having a cannula passageway end positioned outside the body, the cannula passageway end having a perimeter; and a septum separate from but coupled to the body and positioned within the body passageway, the septum having a septum top surface, a septum bottom surface, and a bottommost portion, the septum top surface having a septum top surface portion accessible to an injection needle, the septum top surface portion being bounded by a septum top surface portion perimeter that is greater than the perimeter of the cannula passageway end; the septum being configured such that space above the bottommost portion and below the septum top surface that is occupied by an insertion needle during infusion device insertion is re-occupied by septum material after the insertion needle is removed.