52 results about "Radiotherapy unit" patented technology

A device for concentrating ionizing radiation fluence is disclosed having a coupling structure linking the external radiotherapy device with linear accelerator to an external structure, whose central axis is hollow with an input window through which electrons enter attaching to the rotation device; a rotation system linking the coupling structure with a coupling flange rotating an inner structure; a deflection system in the inner structure, wherein the deflection system has first and second magnetic deflection devices; a system for controlling the focal point, which is in the electron deflection system, having an electronic control system controlling a set of motors that produce coordinated movements of the second magnetic deflection device, a correction element and a collimator, which change the position of the focal point; and at least two laser diodes on the edge of the collimator pointing towards the focal point determining the position of the electron beam generated.

The present disclosure provides a modular radiation therapy apparatus comprising a plurality of modules configured to sequentially interlock within one another in an annular arrangement, wherein the plurality of modules are individually extractable from the annular arrangement and at least a subset of the plurality of modules comprise computing elements configured to communicate with one another, the plurality of modules comprising a collimator module comprising a multi-leaf collimator (MLC) and at least one sensor, a linear accelerator (LINAC) module comprising at least one of a magnetron or a klystron, at least one imaging module comprising at least one of an image detector, an imaging source, a magnetic imaging system, a single photon emission computed tomography (SPECT) system, or a positron emission tomography (PET) system, a patient tracking module, a cooling module, and a vacuum module, and performing at least one of: monitoring a respective status of the plurality of modules via onboard sensors and computing elements to determine whether any module is in an error state and provisioning status information and module identifiers to a remote computing environment; or distributing computational workloads among the plurality of modules and communicating with a remote computing environment to offload processing tasks using federated processing operations.

An x-ray FLASH radiotherapy device uses an electron beam to generate x-rays on a target element. The focal area on the target element is about 1 to about 12 cm2. The target element is separated from a radiotherapy patient by a thin aerogel insulator. Using about 50 to 200 kV of power, the x-ray FLASH radiotherapy device administers 40 Gy / s of radiation or more during short bursts or pulses of one second or less. Due to the short duration of these pulses, heating of the target element is limited, thereby reducing the source to surface distance between the radiation source and the patient.

A radiotherapy apparatus is described. The radiotherapy apparatus comprises a radiation source, a beam shaping apparatus, a beam receiving apparatus, and a controller configured to control the beam shaping apparatus. The radiation source is configured to deliver radiation in each of a coplanar configuration and at least one non-coplanar configuration. The beam shaping apparatus is configured to direct the radiation produced by the radiation source towards the beam receiving apparatus in each of the coplanar configuration and the at least one non-coplanar configuration. The controller is configured to control the beam shaping apparatus to apply a limit on a field of radiation produced by the radiation source based on whether the radiation source is configured in the coplanar configuration or the at least one non-coplanar configuration.

To provide a positioning apparatus, a radiation therapy apparatus and a positioning method which can perform highly accurate positioning of a patient while reducing a calculation time.SOLUTION: An image acquisition unit 21 acquires a plurality of perspective X-ray images obtained by imaging a subject. A pseudo perspective X-ray image creation unit 22 creates a pseudo perspective image obtained by projecting a three-dimensional perspective image of the subject on a detection surface with respect to an imaging axis for each imaging axis of the perspective X-ray image. An image collation unit 24 obtains a correction axis that corrects the imaging axis on the basis of a two-dimensional movement amount being a deviation amount between the perspective X-ray image and the pseudo perspective X-ray image according to the imaging axis for each of the plurality of imaging axes, and calculates a movement amount from an intersection of each imaging axis to a middle point on a common perpendicular of each correction axis as a bed movement amount of moving a bed.SELECTED DRAWING: Figure 1

The present application relates to a kind of image guided radiotherapy device and control method.According to a specific embodiment, the radiotherapy device includes: treatment unit, which includes treatment head, the treatment head is used to generate the ray of radiotherapy;Imaging unit is used to image the target area of patient, the imaging unit is integrally installed with the treatment head;And planning unit is connected with the treatment unit and the imaging unit by cable.The radiotherapy device of the present application can be suitable for external radiotherapy and intraoperative radiotherapy, and has higher radiotherapy precision.

The utility model discloses a radiotherapy device with a turnover structure, which relates to the technical field of radiotherapy devices and comprises a fixed support, a first motor is arranged at the front end of the fixed support, a glass plate is arranged above the fixed support, and a turntable is arranged at the front ends of a vertical column and a cover plate. A third motor is arranged on the outer surface of the rear end of the stand column, an extension rod is arranged on the outer surface of the front end of the rotating disc, a radiotherapy irradiation mechanism is arranged below the extension rod, and a signal receiving plate is arranged below the radiotherapy irradiation mechanism. According to the radiotherapy device with the turnover structure, a patient lies above the glass plate, the lead screw is controlled to rotate through the arranged first motor, so that the glass plate is moved to the position below the radiotherapy irradiation mechanism to be irradiated, the irradiation result is received through the arranged signal receiving plate, and the radiotherapy irradiation result is transmitted to the patient through the signal receiving plate. And the cover plate is controlled to rotate through the arranged third motor, so that the radiotherapy irradiation mechanism is driven to turn over, and multi-angle irradiation is realized.

The present invention provides treatment equipment and a radiation therapy device that can reduce the size of the treatment room while minimizing the limitations on the range of motion of the treatment table. [Solution] During the first slide, the movable door 70 slides to the left in the lateral direction D1 relative to the irradiation port 55a, and during the second slide, the movable door 70 slides to the right in the lateral direction D1 relative to the irradiation port 55a. In other words, when the movable door 70 slides to one side in the lateral direction D1, there is no movable door 70 on the other side, and when it slides to the other side in the lateral direction D1, there is no movable door 70 on one side. Therefore, when the treatment table 60 moves to be close to the wall 103 (as shown in Figures 5(a) and 5(b)), the movable door 70 can be slid to the opposite side of the treatment table 60 to secure space for the treatment table 60. At this time, the movable door 70 does not need to be moved further away from the irradiation port 55a than necessary to prevent interference with the treatment table 60.

A radiotherapy couch top configured to support a subject such as a patient, which can be included as a part of a patient support apparatus of a radiotherapy apparatus can include a first longitudinal portion with a first lateral width and a second longitudinal portion with a second lateral width. The second lateral width can be smaller than the first lateral width, and the second longitudinal portion is integrally formed with the first longitudinal portion.

A method for needle position optimization for prostate brachytherapy for use with a radiation delivery device configured to use a plurality of needles inserted into a prostate of a patient includes obtaining imagery of the prostate of the patient, generating a needle pool for prostate brachytherapy treatment of the patient based on the imagery of the prostate of the patient, and determining at a computing device an optimum prostate brachytherapy treatment plan for the patient by iteratively removing needles from the needle pool by forming and computationally solving a convex optimization problem wherein the convex optimization problem uses a quadratic dosimetric penalty function, dwell time regularization by total variation, and block sparsity regularization term.

An image guided radiotherapy apparatus and a control method are provided. According to a specific embodiment, the radiotherapy apparatus includes: a treatment unit, which includes a treatment head for generating radiation beam for radiotherapy; an imaging unit for imaging a target area of a patient, wherein the imaging unit is integrated mounted with the treatment head. The radiotherapy apparatus of the present invention can be applicable to both extracorporeal and intraoperative radiotherapy, and has a high radiotherapy accuracy.

The radiotherapy device comprises a rotatable gantry, a support surface and a plurality of cameras. The rotatable gantry comprises a front 250, a rear 260 and a bore 180. The support surface 110 is mo

A radiation therapy arrangement includes a holding device, an x-ray source, on which an applicator can be arranged, wherein the x-ray source is arranged on the holding device and is held with the holding device so as to be positionable and orientable, a sensor system, which is configured to capture a pose and / or a pose change of the x-ray source and / or of the applicator at least during radiation, and a control device, wherein the control device is configured to evaluate the captured pose and / or the captured pose change and, proceeding from the captured pose and / or the captured and / or a determined pose change, to perform or initiate a shut-off of the x-ray source. Furthermore, the disclosure relates to a method for operating a radiation therapy arrangement.

The present application relates to a kind of multi-head radiotherapy device, belong to radiotherapy technical field, including particle source, beam splitting element, deflection element and multiple independent head, particle source is used to generate charged particle beam pulse, charged particle beam pulse is cut into multiple sub-pulse of different transmission direction by beam splitting element, the transmission direction of sub-pulse is deflected again by deflection element, after deflection sub-pulse is injected into head by transmission beam line, multiple head is located and different, it is irradiated to tumor from different directions, the present application can complete the irradiation of multiple beams to tumor target area simultaneously in very short time, shorten the entire radiotherapy time, at the same time, it can be conformal to target area without rotating head, save time and cost, novel structure.

Methods, systems and computer-readable media for controlling a radiotherapy apparatus are disclosed. A method for controlling a radiotherapy apparatus comprises obtaining a first treatment plan comprising positioning information of a beam shaping apparatus of the radiotherapy apparatus; receiving, during delivery of a radiation therapeutic beam to a target on a patient, information including a positional shift of the target; and generating a revised treatment plan based on the first treatment plan, the generating of the revised treatment plan comprising determining an updated configuration of the beam shaping apparatus from the positioning information of the first treatment plan based on the positional shift of the target.

The present disclosure provides radiotherapy control and radiotherapy plan generation methods, device, and system, and a medium. The method includes: controlling a diagnosis-treatment integrated couch to move a target object to a diagnostic device, so as to acquire a diagnostic image of the target object through the diagnostic device; and controlling the diagnosis-treatment integrated couch to move the target object from the diagnostic device to a radiotherapy device, and synchronously triggering generation of a radiotherapy plan for the target object based on the diagnostic image.

A microwave source used in the radiotherapy device can be provided. The microwave source may include an anode block and one or more cathodes. The cathode of the microwave source may include a cathode support element having a plurality of slots. The plurality of slots can be axially around a circumference of the cathode support element. The microwave source may include a cathode heater including at least one filament. A first part of the at least one filament may be wound around the cathode support element along a first direction and received by a first portion of the plurality of slots, and a second part of the at least one filament may be wound around the cathode support element along a second direction and received by a second portion of the plurality of slots.

A time-series signal prediction device according to an embodiment includes a time-series signal acquirer, a block converter, a feature vector acquirer, and a feature vector converter. The time-series signal acquirer acquires a time-series signal associated with a patient's biological information. The block converter divides the time-series signal into sub signals at predetermined intervals and converts the sub signals to block signals of a time series which is shorter than a time series of the time-series signal. The feature vector acquirer acquires, from the block signals, a feature vector indicating a time-series signal at a time subsequent to the time at which the time-series signal has been acquired. The feature vector converter converts the feature vector to a prediction signal associated with the patient's biological information.

A method of determining whether a radiotherapy device configured to provide therapeutic radiation to a patient should be authorised for use. The device comprises a plurality of components, each component of the plurality of components being coupled with at least one identifier configured to provide data identifying the component it is coupled with. The method comprises receiving, from the identifiers, data identifying each of the plurality of components of the radiotherapy device and determining whether at least one authorisation criterion is met based on the identifying data and authorisation data; and if the at least one authorisation criterion is met, determining that the radiotherapy device is authorised for use.

Disclosed herein is a method of producing an irradiation sequence for a radiotherapy device to deliver radiation according to a treatment plan. The radiotherapy device comprises a rotation gantry, a radiation source coupled to the rotation gantry for rotation through arc segments, and a multi-leaf collimator comprising a plurality of moveable leaves. The multi-leaf collimator is configured to delimit radiation from the radiation source by controlling the position of each of the moveable leaves. The method comprises receiving a treatment plan comprising, for each of a plurality of arc-segments, a set of leaf positions comprising a position for each of the plurality of moveable leaves; and ordering the plurality of arc-segments into an irradiation sequence based on the sets of leaf positions, wherein the irradiation sequence, when executed by a radiotherapy device, delivers radiation according to the treatment plan.

The utility model relates to the field of radiotherapy technique, and specifically, relate to a kind of radiotherapy device.Radiotherapy device includes drive assembly, ray component.Ray component includes irradiation unit, first control unit, second control unit;First control unit includes first control body, multiple first holes;Second control unit includes second control body, multiple second holes;The center interval of adjacent first hole along array direction is A;The center interval of adjacent second hole along third direction is A;The center interval of adjacent second hole along fourth direction is B;Radiotherapy device includes first state, second state;The included angle between the irradiation position of first state and adjacent second state irradiation position is 45 °;The ray of first state has scanning area;The ray of second state passes through scanning area.This has solved the problem of how to reduce the damage to normal tissue when efficiently treating tumor.

A radiotherapy phantom 300 configured for evaluating a radiotherapy device comprising a first three-dimensional structure 302 configured for detection by a kV imaging system and a second three-dimensi

A radiotherapy device can include a radiation source configured to deliver kilovolt (KV) or megavolt (MV) radiation and a detector configured to detect the delivered radiation and generate a plurality of images of a subject located between the radiation source and the detector. The radiotherapy device can further include a controller configured to detect an erroneous pixel in an image of the plurality of images and generate an averaged image. Each pixel of the averaged image can be generated by taking an average of two or more respective pixels in two or more corresponding locations of one or more of the plurality of images, and generating a pixel of the averaged image in a corresponding location to the erroneous pixel comprises excluding the erroneous pixel from the taking of the average.

A dose adjustment mechanism is to reduce an influence of radiation in the dose adjustment mechanism of a radiation therapy apparatus and to prevent occurrence of a failure. A dose adjustment mechanism 40 includes an actuator 42 disposed apart from a radiation axis irradiated with radiation by a radiation therapy apparatus 10, and a flattening filter 33 which is an interference element that moves in a direction perpendicular to the radiation axis by an operation of the actuator 42 and that is capable of switching between a state in which the interference element is disposed on an axis of the radiation axis and a state in which the interference element is not disposed on the axis of the radiation axis. An operation shaft of the actuator 42 does not intersect the radiation axis.

The present invention provides brachytherapy radiation delivery device designed to topically treat cutaneous skin lesions in patient tissue. The topical radiation delivery device includes a layer of one or more radionuclides. The topical radiation delivery device includes a high Z top shielding layer placed adjacent the side of the radionuclide layer away from the patient tissue. The top shielding layer attenuating the energy of the radionuclide from the environment external to the patient. The patch further includes a bolus layer placed between the patient tissue and the radionuclide layer which attenuates the beta radiation fluence. The one or more radionuclides of the brachytherapy radiation delivery device producing a gamma and beta radiation fluence to achieve a desired Percent Depth Dose within the cutaneous skin lesion.

Provided are a positioning device, a radiotherapy device, and a positioning method that enable highly accurate patient positioning while reducing calculation time. An image acquisition part 21 acquires a plurality of X-ray fluoroscopic images obtained by imaging a subject.. For each imaging axis of the X-ray fluoroscopic image, the simulated-X-ray fluoroscopic image creation part 22 creates a simulated fluoroscopic image obtained by projecting a three-dimensional fluoroscopic image of the subject onto the detection surface with respect to the imaging axis. For each of the plurality of imaging axes, the image collation part 24 obtains a correction axis obtained by correcting the imaging axis based on a two-dimensional motion amount, which is a deviation amount between the X-ray fluoroscopic image and the simulated-X-ray fluoroscopic image corresponding to the imaging axis, and calculates, as a treatment-couch motion amount by which the treatment-couch is to be moved, a motion amount from an intersection of the imaging axes to a midpoint of a common perpendicular of the correction axes.