Patent 7018361 was granted and assigned to Baxter International on March, 2006 by the United States Patent and Trademark Office.
An infusion pump (10) is configured to be powered by either a disposable battery source or a rechargeable battery source. The infusion pump (10) has a housing (12) having a recess (33). A motor is positioned within the housing (12) and is operably connected to an electrical contact (94) disposed in the recess (33). The motor powers the pump (10). The recess (33) receives one of a rechargeable battery unit (90) having an electrical contact (98) that contacts the recess electrical contact (94), and a disposable battery unit (92) having an electrical contact (144) that contacts the recess electrical contact (94).