Sealed infusion device with electrical connector port

An ambulatory infusion pump, comprising:

• a housing having a front surface and a back surface that are spaced apart and enclosed by side surfaces to define an internal cavity;
• an electrical connector port fitted to the housing and extending into the internal cavity, the electrical connector port operably connected to a power isolation connector and a data isolation connector disposed within the housing, the electrical connector port adapted to receive electrical power and data via a direct electrical connection, and direct the electrical power to the power isolation connector and the data to the data isolation connector;
• an overmold mechanically coupled to the housing and having an upper portion and a lower portion, wherein the electrical connector port is disposed between the upper portion and the lower portion such that the overmold physically separates the electrical connector from the housing, and wherein the overmold, the housing, and the electrical connector port are configured to provide a seal preventing passage of moisture into the internal cavity, and wherein the power isolation connector is coupled to a power isolation circuit;
• a transformer disposed within the overmold and configured to control electrical input from the electrical connector port;
• and
• a battery charger disposed within the overmold and configured to receive substantially constant output from the transformer.