Abstract: A child safety seat and a side impact protection device. The side impact protection device comprises a fixed seat assembled on the backrest and a side impact protection block pivotally coupled to the fixed seat via a pivot shaft. The side impact protection block has at least an extended position and a retracted position during a pivoting process around an axis of the pivot shaft in respect to the fixed seat, one of the fixed seat and the side impact protection block has a locking structure, and the other one of the fixed seat and the side impact protection block has a cooperative locking structure being cooperating with the locking structure, the locking structure is automatically locked with the cooperative locking structure when the side impact protection block is pivoted to the extended position around the axis. The side impact protection device is simple in structure and easy in operation.

Abstract: Provided is a method for performing image guidance, including: acquiring a 3D magnetic resonance (MR) image of a target individual, wherein at least one region range of an object of interest is marked in the 3D MR image; acquiring a reference 3D image of the target individual, wherein the reference 3D image is a 3D-reconstructed computed tomography (CT) image; performing a 3D-3D registration on the 3D MR image and the reference 3D image, so as to mark each region range of the object of interest in the reference 3D image; and performing image guidance on the basis that the reference 3D image is adopted to characterize an initial position state.

Abstract: A radiation treatment device is provided. The device includes an imaging unit and a single radiotherapy unit adjacent to a second end of the imaging unit. The imaging unit includes a first opening at a first end of the imaging unit adapted to receive a patient; at least one imaging source; and at least one imager arranged opposite the imaging source. The imaging source and the imager are rotatable about the rotational axis. The radiotherapy unit includes a source body carrying radioactive sources and a collimator having collimation channels. The collimation channels permit treatment beams emitted by the radioactive sources to be projected inside the imaging unit and focused at an intersection point located within an imaging beam of the imaging unit. The source body and the collimator are arranged concentric about the rotational axis and close a second opening at the second end.

Abstract: A radiotherapy device and a control driving method thereof are provided. The radiotherapy device includes a radiation source apparatus having a plurality of radiation sources, a source carrier and a collimator. The source carrier includes a source box and a source box region conforming to a shape of the source box, the source box is detachably fixed at the source box region, the plurality of radiation sources are mounted in the source box, the source box is provided with a first connecting part, the source carrier is provided with a second connecting part, and the first connecting part is configured to connect the second connecting part.

Abstract: A shielding apparatus is provided. The shielding apparatus includes: at least one shielding shell segment, the at least one shielding shell segment constituting a shielding chamber, the shielding chamber being arranged on a periphery of a radiation device and shielding radiation generated by the radiation device. The shielding chamber is arranged on the periphery of the radiation device, and the shielding chamber at least partially shields scattering radiation generated by the radiation device, which can thus reduce the requirements of the radiation device for radiation shielding of a dedicated machine room or get rid of the dependence of the radiotherapy device on a dedicated machine room.

Abstract: A radiotherapy device and a control driving method thereof are provided. The radiotherapy device includes a radiation source apparatus having a plurality of radiation sources, a source carrier and a collimator. The source carrier includes a source box and a source box region conforming to a shape of the source box, the source box is detachably fixed at the source box region, the plurality of radiation sources are mounted in the source box, the source box is provided with a first connecting part, the source carrier is provided with a second connecting part, and the first connecting part is configured to connect the second connecting part.

Abstract: Embodiments of the present disclosure provide a positioning apparatus for magnetic resonance imaging, including a three-dimensional frame structure formed by marking plate assemblies. The marking plate assemblies include an inner marking plate, an outer marking plate arranged opposite to the inner marking plate, and an image developing tube in which a developer solution is enclosed, opposite surfaces of the inner marking plate and the outer marking plate are respectively provided with groove structures, the image developing tube is arranged in a cavity formed by the groove structure in the inner marking plate and the groove structure in the outer marking plate, and the number of the marking plate assemblies is greater than or equal to 4.

Abstract: A mask positioning assembly is provided. The mask positioning assembly includes a cradle frame, an adapter frame, and a positioning mask. The cradle frame is connected to both the adapter frame and the positioning mask. The adapter frame can be configured to be connected to any of positioning assembly support frames in different types of positioning systems. A positioning system is also provided.

Abstract: Provided is a verification phantom. The verification phantom is provided with a slot for holding a film, wherein the slot includes a first slot and a second slot; an opening of the first slot and an opening of the second slot are both disposed on a first outer surface of the verification phantom; and an extraction groove is disposed at a junction, on the first outer surface, of the opening of the first slot and the opening of the second slot.

Abstract: Embodiments of the present disclosure provide a positioning apparatus for magnetic resonance imaging, including a three-dimensional frame structure formed by marking plate assemblies. The marking plate assemblies include an inner marking plate, an outer marking plate arranged opposite to the inner marking plate, and an image developing tube in which a developer solution is enclosed, opposite surfaces of the inner marking plate and the outer marking plate are respectively provided with groove structures, the image developing tube is arranged in a cavity formed by the groove structure in the inner marking plate and the groove structure in the outer marking plate, and the number of the marking plate assemblies is greater than or equal to 4.

Abstract: A source storing apparatus, source guiding system and source guiding method are provided. The source storing apparatus comprises: a source tank and a shielding plug, the source tank being provided with an opening and an accommodating cavity, the accommodating cavity being configured to accommodate a cobalt source box, the shielding plug being configured to seal an opening of the accommodating cavity; wherein a first connecting structure is provided on the cobalt source box; a second connecting structure is provided on an outer side of the shielding plug, a pickup structure is provided on an inner side of the shielding plug, and the first connecting structure is detachably connected to the pickup structure. The structure of the source storing apparatus is simplified; the installation and operation processes are simple with reduced operation requirements, and are time-consuming and labor-consuming. The cost of the source guiding apparatus is also greatly reduced.

Abstract: Embodiments of the present disclosure provide an imaging system, an imaging method, and a radiotherapy system. The imaging system is used for imaging a patient, including: a X-ray tube and a flat-panel detector, the X-ray tube is arranged opposite to the flat-panel detector, the X-ray tube emits X-rays, the flat-panel detector detects the X-rays to generate image data, and a geometric center of the flat-panel detector has an offset relative to an orthographic projection of a focal of the X-ray tube on the flat-panel detector. In the embodiments of the present disclosure, an imaging accuracy obtained based on the image data is better, and an effect of image guidance in tumor treatment is improved.

Abstract: Provided is a head positioning frame that includes an upright rod, a base ring, and a head nail. The upright rod includes at least two connecting portions, and at least one of the at least two connecting portions is made of an insulating material, such that the upright rod, the base ring, the head nail, and a head to be positioned are incapable of forming an electrical circuit loop.

Abstract: Provided is a method for performing image guidance, including: acquiring a 3D magnetic resonance (MR) image of a target individual, wherein at least one region range of an object of interest is marked in the 3D MR image; acquiring a reference 3D image of the target individual, wherein the reference 3D image is a 3D-reconstructed computed tomography (CT) image; performing a 3D-3D registration on the 3D MR image and the reference 3D image, so as to mark each region range of the object of interest in the reference 3D image; and performing image guidance on the basis that the reference 3D image is adopted to characterize an initial position state.

Abstract: A mask fixing apparatus, a mask component and a radiotherapy device are provided. The mask fixing apparatus includes: a frame, being configured to fix a mask, the frame being U-shaped having an inner boundary line and an outer boundary line, an opening of the frame fitting a neck of a patient, the inner boundary line of the frame being determined based on a periphery of a head of the patient, and the outer boundary line of the frame being determined based on a treatment cavity or an anti-collision cover in the treatment cavity; and a back-head support, being configured to support a back-head of the patient, and being connected with the frame to jointly carry the head of the patient, the inner surface of the back-head support fitting the back-head of the patient, and the outer surface of the back-head support being a curved surface having a preset curvature.

Abstract: A shielding apparatus is provided. The shielding apparatus includes: at least one shielding shell segment, the at least one shielding shell segment constituting a shielding chamber, the shielding chamber being arranged on a periphery of a radiation device and shielding radiation generated by the radiation device. The shielding chamber is arranged on the periphery of the radiation device, and the shielding chamber at least partially shields scattering radiation generated by the radiation device, which can thus reduce the requirements of the radiation device for radiation shielding of a dedicated machine room or get rid of the dependence of the radiotherapy device on a dedicated machine room.

Abstract: A source storing apparatus, source guiding system and source guiding method are provided. The source storing apparatus comprises: a source tank and a shielding plug, the source tank being provided with an opening and an accommodating cavity, the accommodating cavity being configured to accommodate a cobalt source box, the shielding plug being configured to seal an opening of the accommodating cavity; wherein a first connecting structure is provided on the cobalt source box; a second connecting structure is provided on an outer side of the shielding plug, a pickup structure is provided on an inner side of the shielding plug, and the first connecting structure is detachably connected to the pickup structure. The structure of the source storing apparatus is simplified; the installation and operation processes are simple with reduced operation requirements, and are time-consuming and labor-consuming. The cost of the source guiding apparatus is also greatly reduced.

Abstract: A radiotherapy device, a control driving method thereof, and a radiotherapy system are disclosed. The radiotherapy device includes a radioactive source apparatus, the radioactive source apparatus includes a source carrier and a collimator, the source carrier is provided with a plurality of radioactive sources thereon, an angle of the plurality of radioactive sources in a longitude direction is within a preset angle range; the collimator is provided with a collimating hole thereon, and radiation beams emitted from the plurality of radioactive sources intersect at a common focus after passing through the collimating hole on the collimator.

Abstract: A control driving method for a radiotherapy device is disclosed. The radiotherapy device includes a collimator and a plurality of radioactive sources, wherein the radioactive sources are disposed within a preset angle range in a longitude direction, the longitude direction being a circular direction perpendicular to a central axis of the radiotherapy device, and the radioactive sources are configured to emit beams that intersect at a common focus after being collimated by a collimator. The method comprises: obtaining at least one protection angle range and driving the radiotherapy device such that no beam from the plurality of the radioactive sources within the at least one protection angle range is emitted.