Patent ID: 8366687

Claim:
An access port comprising: a housing with a first and second openings formed therein; and a septum mounted within the housing sealing the first opening, the septum including: a solid, disk-shaped operative portion engaging the first opening and self-sealing after penetration by a needle; and an annular attachment portion for securing the septum to the housing, the attachment portion being coupled to the operative surface by a chamfered portion which, when the septum is mounted within the housing, is not coplanar with the annular surface and is subject to a force oriented substantially perpendicularly with respect to the annular surface, the chamfered portion redirecting a portion of the force to compress the operative surface in a direction substantially parallel to the annular surface, wherein the chamfered portion comprises an elastomeric material extending continuously, without interruption, along a cross-sectional plane, wherein the chamfer is not perpendicular to the operative surface and the annular surface, and wherein the second opening is adapted to connect to a catheter and is substantially perpendicular to the first opening.