Ambulatory infusion pumps were a critical addition to the infusion therapy market, as they allowed patients to be more mobile during therapy sessions. These devices were usually battery-powered and could be placed in a backpack or pocket. They are inexpensive and easy to use, and free up hospital beds for patients with more debilitating ailments. The rise of the home and alternate care segments in the medical device market not only increased the need for ambulatory infusion pumps, but also allowed device manufacturers to develop a new type of device for the specific needs of these segments. These alternate care settings tend to be much more sensitive to device cost and overhead costs associated with the infusion therapy. Conventional infusion pumps not only require a large initial investment to purchase, but there are also additional costs associated with maintenance and sterilization. Additionally, conventional infusion pumps, particularly those referred to as smart pumps, which have extensive drug libraries and safety features, can require extensive training before they can be used properly and effectively.