Abstract: The treatment couch includes a couch panel, a main supporting structure, an auxiliary supporting structure and a supporting beam. Both ends of the supporting beam are respectively connected to the main supporting structure and the auxiliary supporting structure.

Abstract: Provided is a setup method which can include: acquiring a position of a reference mark point provided on a noninvasive positioning device in an infrared coordinate system of an infrared positioning system; according to the position of the reference mark point in the infrared coordinate system, a relative position between the reference mark point and an image center point in an electronic scanning image, and a position of an isocenter of a radiotherapy equipment in a patient supporting device PSD coordinate system of the radiotherapy equipment, determining a first offset between the image center point and the isocenter in the PSD coordinate system; and adjusting the first offset to a first target offset by adjusting a position of a patient supporting device in the PSD coordinate system.

Abstract: Embodiments of the present disclosure provide a positioning method and apparatus, and a radiation therapy system. The positioning method comprises: acquiring a current gamma angle before radiation beams of a radiation source illuminate a treatment body part; acquiring a reconstructed image corresponding to the current gamma angle, the reconstructed image being an image reconstructed according to an image of the treatment body part acquired in advance; acquiring an IGRT image of the treatment body part corresponding to the current gamma angle, the IGRT image being an image generated by an image guide system; and comparing the reconstructed image with the IGRT image to obtain a deviation of the position of the treatment body part, and sending out the deviation, so that the position of the treatment body part is adjusted according to the deviation when the deviation is greater than a preset threshold.

Abstract: A microwave power control device can include: a microwave signal generator and a signal distribution circuitry connected to the microwave signal generator. The microwave signal generator is configured to generate microwave signals and transmit the microwave signals to the signal distribution circuitry; and the signal distribution circuitry is configured to distribute the microwave signals to n accelerating tubes according to a target microwave power distribution ratio, n being an integer greater than or equal to 2.

Abstract: The present invention relates to a radiotherapy apparatus and a method for determining target positions using a radiotherapy apparatus, so as to accurately detect the motion of the tumor position.

Abstract: A tumor positioning method includes obtaining projection images of a tumor at different angles; and registering the projection images with an initial reference image to obtain a first offset. If it is determined that a virtual reacquisition operation needs to be performed according to the first offset, the method further includes generating a first reference image according to the first offset; and registering the projection images with the first reference image to obtain a second offset. If it is determined that the operation does not need to be performed according to the second offset, the method further includes outputting a first accumulated offset being a sum of the first and second offsets. The method may solve problems of long time consuming and the service life of a treatment couch and acquisition devices being reduced due to repeatedly moving the treatment couch and repeatedly acquiring the X-ray projection images.

Abstract: A method and apparatus for position detection, and a radiotherapy system are provided. The radiotherapy system includes: a treatment couch, a positioning apparatus, an optical tracking system and a computer; the positioning apparatus disposed on the treatment couch, and at least one reference point provided on the positioning apparatus; the optical tracking system disposed above the treatment couch and configured to detect relative positioning between a mark point set on a treated part of a patient and the reference point, determine deviation between the relative and reference positions, and send the deviation to the computer. The computer is configured to determine whether to adjust a position of the treatment couch based on the deviation and deviation range. The system provided by the present disclosure avoids the influence of patient movement on the accuracy of treatment, and prevents a treatment beam from damaging normal tissues of the patient.

Abstract: A mounting mechanism includes: two lateral supports respectively connected to two sides of a radiation head; top supports connected to tops of the lateral supports and configured to be connected to a top of a gantry; and positioning supports connected to the gantry and disposed between the lateral supports and the gantry, wherein the thicknesses of the positioning supports are adjustable. A radiotherapy device is further provided.

Abstract: A multi-leaf collimator includes a first carriage, a second carriage, a drive device, a first set of leaves disposed on the first carriage, and a second set of leaves disposed on the second carriage, wherein the first set of leaves and the second set of leaves are disposed oppositely to each other, and each leaf in each of the sets of leaves is movable relative to each respective carriage; and the drive device is configured to drive the first carriage and the second carriage to move in the same direction synchronously.

Abstract: Provided is a support arm, including a guide assembly configured to be connected to a gantry of a radiotherapy equipment; a support bracket movably connected to the guide assembly and configured to support a detector; and a drive assembly connected to the support bracket and configured to drive the support bracket to move on the guide assembly.

Abstract: The present disclosure provides a radiation therapy device and system. The radiation therapy device includes a first treatment head and a second treatment head. A beam emitted from the second treatment head intersects with a beam emitted from the first treatment head at an intersection point. The first treatment head is an X-ray treatment head, and the second treatment head is an X-ray treatment head, a multi-source focusing treatment head, or an intensity-modulated treatment head. The radiation therapy device may increase a dose rate at the intersection point.

Abstract: A radiotherapy equipment is provided. The radiotherapy equipment comprises at least two radiation apparatuses, the radiation apparatuses are configured to be capable of emitting radiation beams, the radiation beams emitted by at least two of the radiation apparatuses intersect at an intersection point, the radiation apparatuses are rotatable circumferentially about a rotation axis, and radiation positions of at least two of the radiation apparatuses are positioned at different cross-sections with respect to the rotation axis.

Abstract: Provided is a tumor tracking method including: acquiring a detection image when a first ray source is located at a first detection point; determining, from a first reference image sequence in a preset image library, a first reference image corresponding to the detection image; acquiring, from a second reference image sequence corresponding to the first reference image sequence in the preset image library, a second reference image determined at the same time point as the first reference image; and determining a position of a tumor relative to a second ray source according to the second reference image.

Abstract: The treatment couch includes a couch panel, a main supporting structure, an auxiliary supporting structure and a supporting beam. Both ends of the supporting beam are respectively connected to the main supporting structure and the auxiliary supporting structure.

Abstract: An anti-collision simulation device and a radiotherapy system relate to the technical field of medical equipment. The anti-collision simulation device is applied to a radiotherapy device, and includes a supporting frame and a simulation rod rotatably connected to the supporting frame. A space enclosed by a rotation track of the simulation rod is matched with a space in a therapy cabin of the radiotherapy device. The supporting frame includes a fixing frame and a movable frame. The fixing frame is fixedly installed relative to the radiotherapy device. The simulation rod is rotatably connected to the movable frame, and the movable frame is able to move relative to the fixing frame, so as to enable the simulation rod to be located at different positions.

Abstract: A multi-leaf collimator can include a first carriage, a second carriage, a drive device, a first set of leaves disposed on the first carriage, and a second set of leaves disposed on the second carriage, wherein the first set of leaves and the second set of leaves are disposed oppositely to each other, and each leaf in each of the sets of leaves is movable relative to the carriage; and the drive device is configured to drive the first carriage and the second carriage to move in the same direction synchronously.

Abstract: Provided are a radiotherapy device and system. The device includes: a fixed machine frame, a rotary machine frame, an imaging device and a treatment couch disposed on a side of the fixed machine frame. The treatment couch can move away from or close to the fixed machine frame along a first direction. The rotary machine frame is rotatably connected to the fixed machine frame provided with a treatment source; and the imaging device includes a ray emitter and a detector which are disposed oppositely, the ray emitter and/or the detector are/is disposed on the fixed machine frame, and rays emitted by the ray emitter are received by the detector after passing the affected part of patient, for capturing images of the affected part of the patient. The imaging device and the radiotherapy device are integrally designed, thereby effectively improving the locating accuracy of radiotherapy device, and improving effects of radiotherapy.

Abstract: A device and method for controlling the rotation of radiotherapy equipment are provided. The device includes: a detector, configured to detect the rotation of a rotational load of the radiotherapy equipment, and record a rotational deviation amount when the rotational load rotationally deviates; and a controller, configured to generate correction instructions for eliminating the deviation according to the rotational deviation amount when the detector detects the rotational load of the radiotherapy equipment rotationally deviates. The deviation occurred to the rotation of the rotational load is timely corrected by monitoring the actual rotation of the rotational load of the radiotherapy equipment, thereby improving the safety and positioning accuracy of the radiotherapy equipment.

Abstract: A positioning stud for radioactive therapy includes a stud rod, a stud tip, and an insulating component. The insulating component is connected between the stud rod and the stud tip, and is used to prevent contact between the stud rod and the stud tip.