Medical electron linear accelerator (KylinRay-MELAC) integrates various innovative technologies, including in vivo dose monitoring and guidance, multi-mode image guidance, multi-dimensional precision control of the beam, etc. It achieves high accuracy, high dose rate, high applicabillity for tumor radiotherapy. Combined with advanced clinical treatment modes, personalized and accurate treatment can be delivered for each patient, greatly improving the efficiency of tumor treatment while ensuring the efficacy of tumor radiotherapy.
Accelerator Basic Information
Product name: Medical Electron Linear Accelerator
Model: KylinRay-MELAC
Product structure composition: The product consists of a gantry, beam system, couch, beam limiting system, image-guided system, control system, and Treatment plan system.
Main Uses and Characteristics of Accelerator
Intended purpose
This product is intended to provide Treatment Planning System, Image Guided Radiation Therapy, Conformal Radiation Therapy and Intensity Modulation Radiation Therapy for lesions, tumors and conditions anywhere in the body where X-ray radiation treatment is indicated.
Characteristics of accelerators
Medical electron linear accelerators are large medical devices used for radiation therapy, designed for long-distance external radiation therapy activities in human medical practice.
This accelerator is a medical standing wave linear accelerator designed based on the principle of isocenter, which can generate X-rays, and be used to treat deep tumors.
The accelerator must be operated by operators with the necessary skills for special medical applications under the guidance of licensed or qualified personnel.
The installation of this accelerator must be operated by trained personnel designated by SuperAccuracy. The installation personnel can be found through the contact number provided in this manual.
Basic performance
The basic performance consists of two basic functions that enable its specific use: patient positioning and radiation projection.
1）Patient positioning
a）The patient is positioned on the couch as required.
b）The image guidance system can display the internal anatomical structure and quantitatively determine the deviation between the current position of the patient's anatomical structure and the expected position of the treatment plan reference image.
c）It is not always necessary to prevent treatment when the patient's position deviates from the expected position during each single treatment.
2）Radiation projection
a）The system will generate a nominal 6MV X-ray beam and accurately project the dose relative to the isocenter.
b）The system will accurately locate the radiation beam relative to the isocenter of radiation.
c）The system provides beam conformal function.
d）Converting the treatment plan into machine specific instructions, and then executing the instructions by coordinating and synchronously controlling the beam position and shape.
e）The treatment will stop once all machine axes have reached their planned positions.
f）Record and export treatment records.
The basic performance also includes terminating the beam when the specified conditions are not met (according to the basic performance items specified in EN IEC 60601-2-1, 201.10).
Intended clinical benefit
The basic mechanisms of Radiotherapy is primarily used to target and destroy cancer cells in the treated area, eliminate or shrink tumors through precise radiation doses leading to local tumor control and preventing the spread of cancer to surrounding tissues.
Intended users
The intended users of KylinRay-MELAC include Physicists and Radiotherapy Technicians.
Intended patient population
Patients with tumor need receive radiation therapy after evaluation.
Main performance of accelerator
Energy: 6MV
Maximum dose rate: 600cGy/min @ FF
MLC:
Number of leafs: 60 pairs
Maximum open field: 40cm×40cm
maximum speed: 40 mm/s
Gantry:
Rotation Range: 370° （-185°~185°）
Rotation Speed: 0-1 rpm, continuously adjustable
Safety Assurance
The design principle of accelerator is to ensure maximum safety and reliability, while not reducing the performance of the system. However, improper use can still harm the human body or equipment.
In order to use and operate the accelerator correctly and safely, it is necessary to understand the serious hazards of accelerator in the event of an accident and be familiar with various emergency procedures. Users are responsible for establishing emergency procedures and safety regulations to ensure safe operation.
Unfamiliar or careless operation can affect the performance of the accelerator, damage the accelerator or its components, and potentially cause serious personal injury. All personnel, including operators, maintenance personnel, and any other personnel related to the accelerator, must be familiar with the product, and take preventive measures to protect themselves and patients, while also preventing equipment damage.
The safety issues may be involved in operating and maintaining the accelerator are as follows:
a）X-ray radiation
b）RF radiation
c）Electrical risks
d）Collision risk: mechanical collisions with humans, collisions between equipment
e）Patient safety risks: Patient falls from the couch, unsafe weight distribution on the couch surface, pinch points, couch movement failure, and couch modifications
f）Laser beam
g）High temperature burn
h）Electromagnetic interference
i）Toxic gas: Sulfur Hexafluoride (SF6) and ozone
j）Lead hazard
k）Software security
