US Patent 7445614 Subcutaneously implantable access port

A chamber for the infusion of a medicament. The chamber includes a reservoir, an outer casing having a base wall and a lateral wall, a region for access to the reservoir, and a duct for the diffusion of the medicament. A contour of the base wall is substantially triangular. The casing has a shape tapered in a first direction, and a terminal portion of the diffusion duct extends tranversely, and preferably perpendicularly, to the direction of tapering.