Portal and septum therefor

摘要

An implantable portal includes a septum that has embedded therein a plurality of formations that together form an indicia adapted to identify at least one characteristic of the portal. The formations are configured from impressions formed on different layers of the septum spatially separated along the vertical axis of the septum. The impressions are filled with a radiopaque material. The superposed formations do not overlap when viewed from atop the septum. When viewed under radiographic imaging from the top of the septum, a 3-D identification indicia is presented to the viewer. The 3-D indicia may be used as a 3-D marker to focus the location of the septum where a needle to access the fluid reservoir of the portal may be inserted.

主权项

1. A self resealable septum, comprising: an elastomeric structure having at least two impressions embedded therein, the impressions being spatially separated from each other along one direction of the structure, each of the impressions configured to have a formation, formations resulting from the impressions spatially separated from each other along the one direction, each of the formations not blocked when viewed along the one direction, the formations together presenting a 3-D identification indicia to a viewer when the structure is viewed along the one direction under radiographic imaging.