US Patent 11931545 Drug infusion port

A medical system configured to aid a user in locating an access port of an implantable medical device, the medical system including an implantable port comprising a medicament chamber accessible through a septum, a localizer base operably coupled to the implantable port comprising an array of electromagnetic field emitting coils, an antenna array comprising a plurality of electromagnetic field sensing coils, and a user interface adapted to display data received from the antenna array to visually depict a relative position of the antenna array relative to the localizer base.