Disclosed in the present invention is a radiation therapy device which relates to the technical field of medical instruments and solves the problem of isocenter offsetting caused by the drooping of atreatment head in an existing radiation therapy device. A radiation therapy device, comprising a framework, a suspension arm, and a treatment head; the suspension arm comprises a connected end and a free end, the connected end of the suspension arm being connected to the framework and the free end of the suspension arm being connected to the treatment head; the radiation therapy device further comprises a support device which is provided between the free end and the connected end of the suspension arm and is connected to the suspension arm and/or the treatment head.

本发明公开了一种放射治疗设备，涉及医疗器械技术领域，解决了现有的放射治疗设备由于治疗头下垂带来的等中心偏移的问题。一种放射治疗设备，包括：机架、悬臂以及治疗头，其中，所述悬臂包括连接端和自由端，所述悬臂的连接端与所述机架连接，所述悬臂的自由端与所述治疗头连接；还包括支撑装置，所述支撑装置设置在所述悬臂的自由端和连接端之间，并与所述悬臂和/或所述治疗头连接。