Patent ID: 7651483
Filing Date: 2010-01-26
Classification: A61M

Abstract:
1. A surgically implantable injection port comprising: a needle penetrable septum configured for access by a needle from a proximal side of the implantable injection port; a needle puncturable housing of unitary construction comprising a housing bore extending into said housing distal from said septum and further comprising a bottom having a sidewall extending proximally therefrom to said septum to define a reservoir; and a non-permeable metallic member attached to a flat portion of said bottom of said housing bore and directly supported thereby, internal to said housing bore, wherein said metallic member is free from contact with said sidewall at areas proximal to a distalmost end of said sidewall, and said metallic member is configured to protect said bottom of said housing bore from puncture when a needle penetrates into said septum and into said reservoir; wherein said metallic member is retained in place by a retaining lip overlying at least a portion of said metallic member; wherein said housing defines a recess extending into said bottom of said housing bore, said recess having a periphery, said retaining lip initially extending upwardly from adjacent at least a portion of said periphery, said retaining lip being deformed to overlie at least a portion of said metallic member.