TTFields are delivered to the body region where the tumor is located using a medical device. The device is lightweight, and battery-operated. Patients using the device wear four Transducer Arrays that are placed on the skin to deliver TTFields treatment non-invasively to the tumor site. Treatment should last around 18 hours per day on average.
Patients may not necessarily be physically carrying the device most of the time, but will rather use it while it is placed continuously in one location (e.g. on a desk, a table or on the floor inside the carrying bag). The device was designed to allow patients the option of maintaining their normal daily routines. The device comes with a carrying bag, which can be worn as a shoulder bag, a backpack or hand-held.