Figure 1. The Telemedicine Mobile Treatment Unit (TM-MTU).

The inset shows the interior of the TM-MTU, which allows space for a waiting area, a kitchen with a refrigerator, a bathroom that can be used for observed urine collection, and a private meeting room for video encounters (TM appointments) between patients and physicians from the Division of Addiction Research and Treatment. All interactive video conferencing sessions are conducted point-to-point using Health Insurance Portability and Accountability Act–compliant Advanced Encryption Standard algorithm via internet protocol connections. The mobile unit backup power supply uses a Tripp Lite Medical-Grade kit, which includes 2 modules: a power supply module and a battery module. When the 2 modules are connected (and attached to a remote user interface), they provide AC power for a variety of equipment on the MTU.