Abstract
There are several advantages to using portable disposable infusing devices (Baxter Infuser PCA). First, the initial costs of introducing their devices are very low and are paid by health insurance in Japan. Second, their mechanism is so simple that it is easy to educate medical staff members and patients on management of their devices. Therefore, misapplication of them is rare and it is not necessary to collect their waste devices. There are some disadvantages of portable disposable infusing devices, such as they have no recording or alarm systems. It is not variable to fine infusing dose in comparison with electric mechanical pumps. However, Baxter Infuser PCA has the advantage of being able to administer drug to a patient for a long period of time, especially over five days. Its disadvantages are that it is difficult to visually check its residual volume correctly and for the patient to push its PCA button on his or her own.
