Control of radiation therapy devices via PLC technology
Synchronization and control of linear accelerator, multi-leaf collimator, gantry system, patient support system and x-ray beam generation system at the same time is difficult to establish, particularly with hard real-time requirements. The presented technology comprises a control unit consisting of standardized
Common therapeutic devices for treating a patient with rays, particularly accelerator devices on the market, typically comprise a plurality of controlling units for controlling subsystems such as linear accelerator (LINAC), multi-leaf collimator, gantry system, patient support system and x-ray beam generation system. Synchronization and control of all subsystems at the same time is difficult to establish, particularly with hard real-time requirements. Dynamic and 4D treatment methods are very often limited due to non-open standard solutions. Since combinations with third party vendors are rarely possible, known therapeutic devices for treating a predefined body part of a patient with rays and known methods for controlling these devices and their uses are disadvantageous and detrimental in several ways.
The technology comprises a control unit consisting of standardized programmable logic controllers (PLCs) for real-time operation of at least the collimator, the ray positioning system and the patient positioning system of a radiation therapy device. Thus, the technology allows precise and dynamic patient treatment with high time resolution.
- Coordinated real-time control of all radiotherapy device components for precise and dynamic patient treatment
- Usage of reliable and inexpensive PLCs guarantees a high degree of compatibility and maintainability
- Control unit can be located off-site
The technology can be used for developing and distributing a new generation of especially compact radiation therapy devices, where PLCs control the main operating system.