Implantable access port

  • US 8,926,573 B2
  • Filed: 09/08/2008
  • Issued: 01/06/2015
  • Est. Priority Date: 04/02/2002
  • Status: Active Grant
First Claim
Patent Images

1. An implantable access port comprising:

  • a reservoir having an opening fluidly sealed by an elastomeric needle-penetrable septum, the reservoir in fluid communication with an outlet stem extending away from the reservoir;

    wherein the septum has a top and bottom septum surface, the bottom septum surface running along a continuously, concave down curve, the continuously concave down curve having a maxima disposed in substantially a center of the septum,wherein the reservoir has a bottom reservoir surface, the bottom reservoir surface running along a concave up curve, the concave up curve having a minima disposed in substantially a center of the reservoir,wherein the maxima and the minima run along a common vertical axis,wherein the reservoir has a reservoir outlet positioned substantially at the minima of the reservoir with the outlet stem extending substantially tangentially therefrom, andwherein the outlet stem is disposed substantially tangential to the minima of the bottom reservoir surface.

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