Low Profile Venous Access Port Assembly

A venous access port assembly, comprising:

• a housing having a housing base and a discharge port extending from a distal end of the port assembly;
• a needle-penetrable septum;
• a cap being securable to the housing and further capable of retaining the needle-penetrable septum securely in the port assembly, the cap further comprising a tab-receiving recess;
• and
• a base tab located adjacent a bottom surface of the housing base that facilitates the appropriate orientation of the housing base to the cap during assembly, by cooperation with the tab-receiving recess,
• wherein the discharge port comprises a discharge stem, the discharge stem having a pair of axially spaced ridges that facilitate mechanical connection to a catheter, and
• wherein the pair of axially spaced ridges comprises:
• a first rounded annular ridge disposed on an outer surface of the discharge stem at a first position, and
• a second rounded annular ridge disposed on the outer surface of the discharge stem at a second position,
• the first position being more proximal to the housing than the second position, and
• wherein each of the first rounded annular ridge and the second rounded annular ridge has an upper rounded cross-section and a lower rounded cross-section in a section view taken along a central longitudinal plane of the discharge stem.

A venous access port assembly, comprising:

• a housing having a discharge port extending from a distal end of the port assembly;
• a needle-penetrable septum comprising a flattened top surface, an annular seating flange, and a ridge disposed on at least one of an upper seating flange surface and a lower seating flange surface;
• a cap being securable to the housing and further capable of retaining the needle-penetrable septum securely in the port assembly, the cap further comprising a tab-receiving recess,
• wherein the housing has a top surface that is a seat for the annular seating flange, and
• wherein the discharge port comprises a discharge stem with a first rounded annular ridge disposed on an outer surface of the discharge stem and a second rounded annular ridge disposed on the outer surface of the discharge stem, the first rounded annular ridge being separated from the second rounded annular ridge by a distance, each of the first rounded annular ridge and the second rounded annular ridge being positioned on a same axis along the discharge stem,
• wherein each of the first rounded annular ridge and the second rounded annular ridge has an upper rounded cross-section and a lower rounded cross-section in a section view taken along a central longitudinal plane of the discharge stem, and
• wherein the first rounded annular ridge and the second rounded annular ridge facilitating mechanical connection to a catheter.