WO2019051756A1 - 放射治疗设备及系统 - Google Patents

放射治疗设备及系统 Download PDF

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Publication number
WO2019051756A1
WO2019051756A1 PCT/CN2017/101841 CN2017101841W WO2019051756A1 WO 2019051756 A1 WO2019051756 A1 WO 2019051756A1 CN 2017101841 W CN2017101841 W CN 2017101841W WO 2019051756 A1 WO2019051756 A1 WO 2019051756A1
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WIPO (PCT)
Prior art keywords
support arm
image
radiation therapy
detector
disposed
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PCT/CN2017/101841
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English (en)
French (fr)
Inventor
刘海峰
昝鹏
Original Assignee
深圳市奥沃医学新技术发展有限公司
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Application filed by 深圳市奥沃医学新技术发展有限公司 filed Critical 深圳市奥沃医学新技术发展有限公司
Priority to CN201790000647.1U priority Critical patent/CN209917084U/zh
Priority to US16/090,615 priority patent/US11033759B2/en
Priority to PCT/CN2017/101841 priority patent/WO2019051756A1/zh
Publication of WO2019051756A1 publication Critical patent/WO2019051756A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1077—Beam delivery systems
    • A61N5/1081—Rotating beam systems with a specific mechanical construction, e.g. gantries
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1042—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy with spatial modulation of the radiation beam within the treatment head
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A61N2005/1061—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using an x-ray imaging system having a separate imaging source
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1092—Details
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1064—Monitoring, verifying, controlling systems and methods for adjusting radiation treatment in response to monitoring
    • A61N5/1065—Beam adjustment

Definitions

  • the present invention relates to the field of medical devices, and in particular to a radiation therapy device and system.
  • Radiation therapy devices typically include a gantry and a treatment couch that is annular or C-shaped with a treatment source mounted thereon that can emit a therapeutic beam. Prior to radiation therapy, the patient needs to be placed in a moving therapy bed to align the patient's affected area with the focus of the treatment source.
  • the positioning accuracy depends on the positioning head frame or the laser positioning system, and the positioning error is large, which affects the effect of the radiation therapy.
  • some methods disclose that the image system disposed on the floor and the ceiling is used for positioning, but due to the separate arrangement of the imaging system and the radiotherapy device, the positioning accuracy of the radiotherapy device is low, and the installation and debugging process is complicated and the cycle is long.
  • the present application provides a radiotherapy apparatus and system, which can solve the problem of low placement accuracy of the radiotherapy apparatus in the related art, and the technical solution is as follows:
  • a radiation therapy apparatus comprising: a fixed frame, a rotating frame, an imaging device, and a treatment bed disposed on a side of the fixed frame, the treatment bed being in a first direction Keep away from or close to the fixed rack;
  • the rotating frame is rotatably connected to the fixed frame, and the rotating frame is provided with a treatment source;
  • the image device includes oppositely disposed ray emitters and detectors, and the ray emitters and/or the detectors are disposed on the fixed frame, and the rays emitted by the ray emitters pass through the affected part of the patient The detector is received for collecting an image of the affected part of the patient.
  • the ray emitter and/or the detector are movable relative to the fixed gantry, To approach or away from the treatment couch.
  • the device further includes: a support arm to which the ray emitter and/or the detector are connected, the support arm drives a ray emitter and/or a detector connected thereto Moving on the fixed frame to approach or away from the treatment bed;
  • the fixed frame includes a frame body and a base
  • the support arm is disposed on the frame body, or the support arm is disposed on the base.
  • the support arm moves the radiation emitter and/or the detector connected thereto through the slide rail relative to the fixed frame;
  • the support arm drives the radiation emitter and/or the detector connected thereto through the rotating shaft to move relative to the fixed frame;
  • the support arm is a telescopic arm.
  • the support arm moves the radiation emitter and/or the detector connected thereto through the slide rail relative to the fixed frame;
  • the support arm drives a ray emitter and/or detector connected thereto to move relative to the fixed gantry via a rotating shaft.
  • the radiotherapy apparatus comprises two sets of image devices and two support arms, and the two sets of image devices are disposed on the two support arms;
  • the two support arms are oppositely disposed on opposite sides of the fixed frame in the second direction, and the second direction is perpendicular to the first direction.
  • angles of the rays emitted by the ray emitters in the two sets of image devices are 60 degrees to 120 degrees.
  • a radiation therapy system comprising: the radiation therapy device of the first aspect.
  • the system further includes: a registration module that establishes a communication connection with the radiotherapy apparatus;
  • the radiation therapy device is configured to send an image of the affected part collected at the time of position verification to the registration module;
  • the registration module is configured to determine a placement error according to the image of the affected part and a pre-stored diagnostic scan image of the affected part.
  • the system further includes: establishing respectively with the radiotherapy apparatus and the registration module a position control module having a communication connection;
  • the registration module is further configured to send the placement error to the position control module;
  • the position control module is configured to adjust a position of the treatment bed in the radiation therapy device according to the placement error.
  • the present invention provides a radiotherapy apparatus and system, the radiotherapy apparatus comprising an image device disposed on a fixed frame, the image device including oppositely disposed radiation emitters and detectors, wherein the radiation emitted by the radiation emitter It can be received by the detector after passing through the affected part of the patient to collect images of the affected part of the patient. Due to the integrated design of the imaging device and the radiation therapy device, the positioning accuracy of the radiation therapy device is effectively improved, and the effect of the radiation therapy is improved.
  • One device in the device effectively reduces the time required to install and debug the imaging device.
  • the image device in the radiotherapy apparatus provided by the embodiment of the present invention can be moved relative to the gantry to be close to or away from the treatment bed, and when the image device is in operation, it is moved into the working position, and when the image device stops working, Remove the work position and avoid affecting the operation of the treating physician.
  • FIG. 1 is a schematic structural view of a radiotherapy apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of another radiation therapy apparatus according to an embodiment of the present invention.
  • FIG. 3 is a connection manner of a support arm and a frame according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a radiation therapy system according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of another radiation therapy system according to an embodiment of the present invention.
  • Current radiotherapy equipment typically includes a fixed rack, a rotating rack, and a treatment couch.
  • the fixed frame is rotatably connected to the rotating frame, and the fixed frame can support the rotation of the rotating frame.
  • the rotating frame has an open annular, helmet-shaped or C-shaped structure centered on the rotating frame, and a therapeutic source is mounted on the rotating frame.
  • the treatment couch is located on one side of the fixed frame to support the patient.
  • the radiotherapy apparatus may include: a fixed rack 1, a rotating rack 2, and a side of the fixed rack 1 Treatment bed 5.
  • the rotating frame 2 is provided with a treatment source (not shown), and the treatment bed 5 can be away from or close to the fixed frame 1 in the first direction, which is the direction of the axis m of the fixed frame 1.
  • the treatment source can be rotated around the patient's body under the rotation of the rotating frame 2, and the affected part of the patient is treated from various angles.
  • the arrangement of the rotating gantry 2 can prevent the radiation emitted by the treatment source from continuously illuminating the non-affected parts of the patient (i.e., normal tissues and organs) for a long time.
  • the fixed frame 1 may be annular, and the rotating frame 2 may be in the shape of a helmet having an opening at the center; for the body radiotherapy apparatus, the fixed frame 1 may be annular or rectangular, rotating The frame 2 can be a roller or a C-arm.
  • the head radiotherapy apparatus with the fixed frame 1 as a ring is taken as an example for description.
  • the radiotherapy apparatus of the present invention further includes an imaging device 3, and the imaging device 3 may include oppositely disposed ray emitters 31 and detectors 32, and the ray emitters 31 and/or detectors 32 are disposed in the fixed frame 1.
  • the radiation emitted by the ray emitter 31 is received by the detector 32 after passing through the affected part of the patient for collecting an image of the affected part of the patient.
  • the ray emitter 31 may be an X-ray tube, and the treatment source may emit X-rays or gamma (gamma) rays, wherein the radiant energy emitted by the treatment source is relatively high, generally in the order of megavolts; the radiation emitted by the ray emitter 31 The energy is low, generally in the kilovolt range.
  • the treatment source may emit X-rays or gamma (gamma) rays, wherein the radiant energy emitted by the treatment source is relatively high, generally in the order of megavolts; the radiation emitted by the ray emitter 31 The energy is low, generally in the kilovolt range.
  • the fixed frame 1 includes a frame body 12 and a base 11. Therefore, the radiation emitters 31 and/or the detectors 32 in the image device 3 may be disposed on the frame body 12 or may be disposed on the base 11.
  • the ray emitter 31 and the detector 32 in the imaging device 3 can both be disposed in the rack
  • the main body 12 is disposed on the base 11; on the other hand, one of the radiation emitter 31 and the detector 32 in the image device 3 is disposed on the frame body 12 or on the base 11, in the image device 3
  • the other device may be symmetrically disposed on the ground or the ceiling with the longitudinal section of the axis 1 of the fixed frame 1 as a plane of symmetry.
  • the device in the image device 3 may be directly mounted on the treatment room floor, or The device in the image device 3 is mounted on the ceiling; it can be understood that one of the radiation emitter 31 and the detector 32 in the image device 3 can be disposed on the frame body 12, and another device can be disposed on the base 11.
  • the ray emitter 31 is disposed on the gantry body 12, the detector 32 is disposed on the base 11 at a position opposite to the ray emitter 31, and the radiation emitted by the ray emitter 31 passes through the patient. The affected part is then received by the detector 32, whereby the imaging device 3 can realize the collection of the image of the affected part of the patient.
  • the image device 3 may be a group or a plurality of groups.
  • the ray emitter 31 and the detector 32 in the image device 3 It should be able to move, and when the patient's affected part image is collected, the ray emitter 31 and the detector 32 can be controlled to simultaneously move to ensure that the set of image devices 3 can acquire at least two different angles of the affected part image.
  • the radiotherapy apparatus includes a plurality of sets of image devices 3 at different angles
  • the devices in the image device 3 may not move during the process of performing the image of the affected part of the patient, and the plurality of sets of the image devices 3 are directly used. Get multiple images of the affected part at different angles.
  • the image device 3 can collect the image of the affected part during the position verification process, and send the image of the affected part to the registration module, so that the registration module determines the position error according to the image of the affected part.
  • the radiotherapy apparatus includes an image device disposed on a fixed frame, and the image device includes oppositely disposed radiation emitters and detectors, wherein the radiation emitted by the radiation emitter can be worn.
  • the patient is received by the detector after the affected part to collect images of the affected part of the patient. Due to the integrated design of the imaging device and the radiation therapy device, the positioning accuracy of the radiation therapy device is effectively improved, and the effect of the radiation therapy is improved.
  • a device in the imaging device effectively reduces the time required to install and debug the imaging device.
  • the ray emitters 31 and/or detectors 32 in the image device 3 can be movably coupled to the stationary gantry 1 such that the ray emitters 31 and/or detectors 32 can be opposite
  • the fixed frame 1 is moved to be close to or away from the treatment bed 5.
  • the ray emitter 31 and/or the detector 32 can be directly connected to the fixed gantry 1 via a slide rail such that the ray emitter 31 and/or the detector 32 can be moved relative to the fixed gantry 1 to approach or stay away from treatment Bed 5. That is, when the image device is used for image acquisition of the affected part of the patient, the ray emitter 31 and/or the detector 32 are moved along the slide rail from the initial position to be close to the treatment bed 5, and the image of the affected part of the patient is collected; after the imaging device is completed, the ray is completed. The emitter 31 and/or the detector 32 move along the slide rail to move away from the treatment couch 5 and return to the initial position.
  • the ray emitter 31 and/or the detector 32 can be coupled to the gantry body 12 by a support arm that drives the ray emitter 31 and/or the detector 32 to move relative to the gantry body 12 to approach or move away from the treatment Bed 5.
  • the radiotherapy apparatus may further comprise: a support arm 4 to which the above-described ray emitter 31 and/or detector 32 may be coupled, wherein the support arm 4 is used to drive the connection thereto
  • the ray emitters 31 and/or detectors 32 are moved relative to the fixed gantry 1 to be near or away from the treatment couch 5.
  • the support arm 4 may be disposed on the frame body 12 or may be disposed on the base 11.
  • one of the ray emitter 31 and the detector 32 in each group of imaging devices 3 may be disposed on one support arm 4, and the other of the ray emitter 31 and the detector 32 The device can be placed on the base 11 or on the floor of the treatment room or on the ceiling.
  • two support arms 4 are disposed at one end of the frame body 12 away from the base 11.
  • the ray emitter 31 is disposed at one end of the support arm 4 away from the gantry body 12, the detector 32 is disposed on the base 11, and the ray emitter 31 and the detector 32 of each group of image devices 3 are oppositely disposed, that is, the ray emitter 31 is emitted
  • the radiation passes through the patient's affected area and can be received by the detector 32.
  • the ray emitter 31 and the detector 32 in the image device 3 may be disposed on the support arm 4. At this time, one of the two relative positions of the frame body 12 may be respectively disposed.
  • the support arm 4, that is, the ray emitter 31 in the image device 3 may be disposed on one support arm 4, and the detector 32 may be disposed on the other support arm 4 to ensure that the ray emitter 31 and the detector 32 are oppositely disposed, That is, the radiation emitted by the ray emitter 31 can be received by the detector 32 through the patient's affected part.
  • one of the ray emitter 31 and the detector 32 in each group of image devices 3 may be disposed at one end of a support arm 4 away from the base 11, and the ray emitter 31
  • the other of the detectors 32 may be disposed on the ground or on the base 11 or at one end of the other support arm 4 disposed opposite the one support arm 4 near the base 11.
  • one of the ray emitter 31 and the detector 32 in each group of image devices 3 may be disposed at one end of a support arm 4 near the base 11, the ray emitter 31 and the detection Another of the devices 32 may be disposed on the ceiling or at one end of the other support arm 4 disposed opposite the one support arm 4 away from the base 11.
  • FIG. 2 is a schematic structural view of still another radiation therapy apparatus according to an embodiment of the present invention.
  • two support arms 4 are disposed on the base 11.
  • the detector 32 is disposed at an end of the support arm 4 away from the base 11.
  • the ray emitter 31 is disposed on the base 11 at a position opposite to the detector, that is, the radiation emitted by the ray emitter 31 passes through the patient's affected part and can be received by the detector 32. .
  • the support arm 4 can drive the radiation emitter 31 and/or the detector 32 connected thereto to move relative to the fixed frame 1 through the slide rail 6, or the support arm 4 can also pass The rotating shaft 7 drives the radiation emitter 31 and/or the detector 32 connected thereto to move relative to the fixed frame 1.
  • the frame body 12 can be provided with slide rails 6 , each of which can be connected to the frame body 12 via the slide rails 6 , and each support arm 4 can be moved along the extending direction of the slide rails 6 , thereby The ray emitter 31 and/or detector 32 are moved along the slide rail 6 away from or near the treatment couch 5.
  • each of the support arms 4 can also be coupled to the frame body 12 via a rotating shaft 7, and each of the support arms 4 can be rotated in a direction toward or away from the treatment bed 5.
  • each support arm 4 can also be a telescopic arm. As shown in FIG. 3, the length of the telescopic arm can be adjusted, and the ray emitter 31 is driven by the telescopic arm. / or the detector 32 moves away from or near the treatment couch 5. Therefore, in order to avoid affecting the operation of the therapist when the imaging device is not used, in addition to the movement and rotation of the support arm 4, the length of the support arm 4 can be adjusted, which further improves the flexibility of the use of the radiotherapy apparatus.
  • the support arm 4 can drive the radiation emitter 31 and/or the detector 32 connected thereto to move relative to the fixed frame 1 through the slide rail 6, or the support arm 4 can also pass the rotation shaft. 7 drives the radiation emitter 32 and/or detector 32 connected thereto to move relative to the stationary frame 1.
  • the base 11 can be provided with slide rails 6, each of which can be connected to the base 11 via a slide rail 6, which can be moved along the extending direction of the slide rails 6, thereby driving the radiation emitters 31 and/or Or the detector 32 moves away from or near the treatment couch 2 in the direction of extension of the slide rail 6.
  • the slip The extending direction of the rail 6 may coincide with the direction of the axis m of the fixed frame 1, that is, the direction A in FIG. 2, or the extending direction of the rail 6 may be perpendicular to the direction of the axis m of the fixed frame 1.
  • each supporting arm 4 can also be connected to the base 11 through the rotating shaft 7. At this time, each supporting arm 4 can pass through the rotating shaft 7 along the treatment bed 5
  • the direction of rotation that is, the B direction in Figures 2 and 3.
  • the rotation direction of the rotating shaft may coincide with the direction of the axis m of the fixed frame, or may be perpendicular to the direction of the axis m of the fixed frame.
  • the slide rail 6 disposed on the frame main body 12 or the base 11 may further be provided with a sliding portion, and each support arm 4 may be connected to the sliding portion through the rotating shaft 7.
  • each support arm 4 can slide not only along the extending direction of the slide rail 6, but also can rotate, which effectively improves the flexibility of the support arm 4 during use.
  • each of the support arms 4 may be adapted to the shape of the frame body 12.
  • the frame body 12 is annular in shape, and the support arm 4 may be a curved arm.
  • the support arm 4 can also be a support arm of other shapes. The specific shape of the support arm is not limited in the embodiment of the present invention.
  • the image device 3 provided in the radiotherapy apparatus may be in multiple groups.
  • the effect is also better, but the cost is also higher. Therefore, in order to save cost on the basis of ensuring the positioning effect, in the embodiment of the present invention, as shown in FIG. 2, two sets of imaging devices 3 may be disposed in the radiotherapy apparatus.
  • Two support arms 4, the components of the two sets of image devices 3 may be disposed on the two support arms 4, and the two support arms 4 may be oppositely disposed on the base 11 on both sides of the fixed frame 1 in the second direction Upper, the second direction is perpendicular to the first direction.
  • the second direction is perpendicular to the direction of the axis m of the fixed frame 1. That is, the ray emitters 31 of the two groups of image devices 3 are respectively located at one end of the two support arms 4 away from the base 11, and the detectors 32 are respectively located at one end of the two support arms 4 near the base 11, and the two sets of image devices are arranged at intersection; The ray emitters 31 of the two groups of image devices 3 are respectively located at one end of the support arm 4 away from the base 11 and close to the base 11. The detectors 32 are respectively located at the end of the other support arm 4 near the base 11 and away from the base 11, two groups The image device is cross-set.
  • the two sets of image devices 3 are symmetrically arranged with a longitudinal section of the axis 1 of the fixed frame 1 as a plane of symmetry, and the rays emitted by the ray emitters 31 of the two groups of image devices 3
  • the angle ⁇ may be from 60 to 120 degrees, for example, may be 90 degrees.
  • the radiotherapy apparatus may further include: a driving device (not shown).
  • the driving device can be electrically connected to the image device 3 or each support arm 4 for driving The moving image device 3 or each of the support arms 4 moves.
  • the radiation therapy device may further be provided with a driving switch.
  • the driving switch When the driving switch is triggered (for example, a pressing trigger or a rotation trigger), the driving device starts to work, and drives the image device 3 or each support arm 4 to move. A certain device of the image device 3 is moved to the working position or away from the working position.
  • the therapist can control the image device 3 or each of the support arms 4 to move by the control driving device, so that the devices in the image device 3 are moved to the working position or away from the working position.
  • the working position may include a positioning working position, where the position of each device in the image device 3 is in the position verification position, and when the device in each group of the image device 3 is in the working position, the image is The radiation emitted by the ray emitter 31 in the device 3 can pass through the patient's affected part when placed and can be received by the detector 32.
  • This working position is a predetermined fixed position at the time of production of the radiotherapy apparatus, and is not required to be set by the therapist.
  • the work location may also include a treatment work position.
  • the device in each group of the imaging device 3 in order to improve the accuracy of the radiotherapy, and to ensure real-time monitoring of the affected part of the patient while performing radiotherapy, the device in each group of the imaging device 3 can be located in the treatment working position during the treatment.
  • the radiation emitted by the ray emitter 31 in the imaging device 3 can be passed through the patient's affected part at the time of treatment and can be received by the detector 32.
  • the therapist Before using the imaging device 3 to position the patient, the therapist also needs to adjust the patient's body position and position the patient. In order to prevent the imaging device 3 or the support arm 4 from affecting the therapist's operation, the image can be moved.
  • the device 3 or the support arm 4 is such that the devices in the imaging device 3 are remote from the positioning and treatment stations. Once the therapist has completed the desired operation prior to placement, the imaging device 3 or support arm 4 can be moved again to move the device in the imaging device 3 to the position of the positioning position. The imaging device 3 can then be used to position the patient.
  • the therapist can first adjust the position of the treatment bed 5 based on experience so that the patient's affected part is located near the entrance of the rotating gantry 2. Then, the image device 3 can be turned on. At this time, each of the ray emitters 31 in the image device 3 emits X-rays. Since the X-rays pass through objects of different thicknesses, they will be attenuated to different degrees, and different tissues in the human body or The thickness of the organs is different, so X-rays are attenuated to varying degrees through the affected area.
  • the detector 32 receives the attenuated X-rays, generates a corresponding image of the affected part, and sends the image to the registration module.
  • the registration module pre-stores the diagnostic scan image of the affected part of the patient, and the registration module can image the affected part and the affected part.
  • the diagnostic scan image is registered to determine the placement error, and then the position of the treatment couch can be precisely adjusted based on the placement error.
  • the image device 3 or the support arm 4 can also be moved to make the image device 3
  • the device is moved away from the position of the work and moved to the treatment position to track the affected part of the patient in real time during the treatment.
  • the radiotherapy apparatus includes an image device disposed on a fixed frame, and the image device includes oppositely disposed radiation emitters and detectors, wherein the radiation emitted by the radiation emitter can be worn.
  • the patient is received by the detector after the affected part to collect images of the affected part of the patient. Due to the integrated design of the imaging device and the radiation therapy device, the positioning accuracy of the radiation therapy device is effectively improved, and the effect of the radiation therapy is improved.
  • a device in the imaging device effectively reduces the time required to install and debug the imaging device.
  • the imaging device in the radiotherapy apparatus provided by the embodiment of the present invention can be moved relative to the fixed frame to be close to or away from the treatment bed, and when the imaging device is in operation, it is moved into the working position, and when the imaging device stops working, It moves out of the work position and avoids affecting the operation of the treating physician.
  • Embodiments of the present invention provide a radiation therapy system, which may include: a radiation therapy device as shown in any of Figures 1 to 3.
  • FIG. 4 is a schematic diagram of a radiation therapy system according to an embodiment of the present invention. As shown in FIG. 4, the system may further include: a registration module 20 having a communication connection with the radiation therapy device 10.
  • the radiation therapy device 10 is configured to transmit the acquired image of the affected part to the registration module 20.
  • the registration module 20 is configured to determine an affected part position error according to the affected part image and the pre-stored affected part diagnostic scan image.
  • the diagnostic scan image of the affected part stored in advance in the registration module 20 is a three-dimensional image, and the image of the affected part collected by the imaging device is a two-dimensional image.
  • the registration module 20 In order to register the scan image of the affected part with the image of the affected part, the registration module 20 first needs to pass the number.
  • the Digitally Reconstructed Radiograph (DRR) technology converts the three-dimensional affected part diagnostic scan image into a two-dimensional affected part diagnostic scan image, and then registers the affected part image and the two-dimensional affected part diagnostic scan image to determine the position error of the affected part.
  • DRR Digitally Reconstructed Radiograph
  • FIG. 5 is a schematic diagram of another radiation therapy system according to an embodiment of the present invention. As shown in FIG. 5, the system may further include: a position control module 30 having a communication connection with the radiation therapy device 10 and the registration module 20, respectively. .
  • the registration module 20 is further configured to send a placement error to the position control module 30.
  • the position control module 30 is configured to adjust the treatment in the radiation therapy device 10 according to the position error The location of the bed 2. Thereby, the synergistic work of the radiotherapy apparatus, the registration module and the position control module can be realized, and the efficiency of the radiotherapy is effectively improved.
  • the radiotherapy system includes a radiotherapy apparatus and a registration module, and the radiotherapy apparatus includes an imaging device.
  • the imaging device includes oppositely disposed ray emitters and detectors, wherein the radiation emitted by the ray emitters can be received by the detector after passing through the affected part of the patient.
  • the image device can collect an image of the affected part of the patient and send the image of the affected part to the registration module, and the registration module can determine the position error according to the image of the affected part. Then, according to the position error, the position of the treatment bed can be precisely adjusted by the position control module, thereby effectively improving the positioning accuracy and improving the effect of the radiation treatment.

Abstract

一种放射治疗设备及系统，涉及医疗器械领域，放射治疗设备包括：固定机架（1）、旋转机架（2）、影像装置（3）和设置在固定机架（1）一侧的治疗床（5），治疗床（5）可沿第一方向远离或靠近固定机架（1）；旋转机架（2）与固定机架（1）可转动连接，旋转机架（2）上设置有治疗源；影像装置（3）包括相对设置的射线发射器（31）和探测器（32），射线发射器（31）和/或探测器（32）设置在固定机架（1）上，射线发射器（31）发出的射线经过患者患部后由探测器（32）接收，用于采集患者患部图像。放射治疗设备由于将影像装置（3）与放射治疗设备进行了一体化设计，有效提高了放射治疗设备的定位精度，改善了放射治疗的效果。放射治疗设备用于对患者进行放射治疗。

Description

放射治疗设备及系统 技术领域
本发明涉及医疗器械领域，特别涉及一种放射治疗设备及系统。
背景技术
放射治疗设备一般包括有机架和治疗床，该机架呈环形或为C形，机架上安装有治疗源，可以发射治疗射束。在放射治疗之前，需要通过移动治疗床对患者进行摆位，以将患者的患部与治疗源的射束焦点对准。
相关技术中，在对患者进行摆位时，一般是通过使用定位头架或激光摆位系统，根据定位头架的坐标系或激光摆位系统中心点与治疗源的射束焦点的坐标之间的关系，调整治疗床的位置，以使得患者的患部与治疗源的射束焦点对准。
但是，相关技术中的方法，摆位精度依赖于定位头架或激光摆位系统，摆位误差较大，影响放射治疗的效果。为了解决这一问题，一些方法中披露，采用设置在地板和天花板上的影像系统进行摆位，但由于影像系统与放疗设备分立设置，放疗设备定位精度低，且安装调试过程复杂、周期长。
发明内容
本申请提供了一种放射治疗设备及系统，可以解决相关技术中放射治疗设备摆位精度低的问题，所述技术方案如下：
第一方面，提供了一种放射治疗设备，所述设备包括：固定机架、旋转机架、影像装置和设置在所述固定机架一侧的治疗床，所述治疗床可沿第一方向远离或靠近所述固定机架；
所述旋转机架与所述固定机架可转动连接，所述旋转机架上设置有治疗源；
所述影像装置包括相对设置的射线发射器和探测器，所述射线发射器和/或所述探测器设置在所述固定机架上，所述射线发射器发出的射线经过患者患部后由所述探测器接收，用于采集患者患部图像。
可选的，所述射线发射器和/或所述探测器能够相对于所述固定机架运动， 以靠近或远离所述治疗床。
可选的，所述设备还包括：支撑臂，所述支撑臂上连接有所述射线发射器和/或所述探测器，所述支撑臂带动与其连接的射线发射器和/或探测器相对于所述固定机架运动，以靠近或远离所述治疗床；其中，
所述固定机架包括机架主体和底座；
所述支撑臂设置在所述机架主体上，或者，所述支撑臂设置在所述底座上。
可选的，在所述支撑臂设置在所述机架主体上的情况下；
所述支撑臂通过滑轨带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
所述支撑臂通过转轴带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
所述支撑臂为伸缩臂。
可选的，在所述支撑臂设置在所述底座上的情况下；
所述支撑臂通过滑轨带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
所述支撑臂通过转轴带动与其连接的射线发射器和/或探测器相对于所述固定机架运动。
可选的，所述放疗设备包括两组影像装置以及两个支撑臂，所述两组影像装置设置在所述两个支撑臂上；
所述两个支撑臂在第二方向上相对设置在固定机架两侧，所述第二方向与所述第一方向垂直。
可选的，所述两组影像装置中射线发射器发出的射线的夹角为60度至120度。
第二方面，提供了一种放射治疗系统，所述系统包括：如第一方面所述的放射治疗设备。
可选的，所述系统还包括：与所述放射治疗设备建立有通信连接的配准模块；
所述放射治疗设备用于向所述配准模块发送摆位验证时采集的患部图像；
所述配准模块用于根据所述患部图像和预先存储的患部诊断扫描图像确定摆位误差。
可选的，所述系统还包括：分别与所述放射治疗设备和所述配准模块建立 有通信连接的摆位控制模块；
所述配准模块还用于向所述摆位控制模块发送所述摆位误差；
所述摆位控制模块用于根据所述摆位误差，调整所述放射治疗设备中治疗床的位置。
本发明提供了一种放射治疗设备及系统，该放射治疗设备包括设置在固定机架上的影像装置，影像装置中包括相对设置的射线发射器和探测器，其中，该射线发射器发出的射线可以穿过患者患部后由探测器接收，以采集患者患部的图像。由于将影像装置与放射治疗设备进行了一体化设计，有效提高了放射治疗设备的定位精度，改善了放射治疗的效果。
同时，由于影像装置中的至少一个器件(射线发射器和/或探测器)设置在放射治疗设备中的机架上，使得工程师在安装调试该放射治疗设备过程中，至多只需安装并调试影像装置中的一个器件，有效减少了安装和调试影像装置的时间。
另外，本发明实施例提供的放射治疗设备中的影像装置可以相对于机架运动，以靠近或远离治疗床，在影像装置工作时，将其移入工作位，在影像装置停止工作时，将其移出工作位，避免影响治疗医师的操作。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本发明。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例提供的一种放射治疗设备的结构示意图；
图2是本发明实施例提供的另一种放射治疗设备的结构示意图；
图3是本发明实施例提供的一种支撑臂与机架的连接方式；
图4是本发明实施例提供的一种放射治疗系统示意图；
图5是本发明实施例提供的另一种放射治疗系统示意图。
通过上述附图，已示出本发明明确的实施例，后文中将有更详细的描述。这些附图和文字描述并不是为了通过任何方式限制本发明构思的范围，而是通 过参考特定实施例为本领域技术人员说明本发明的概念。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
目前放射治疗设备通常包括固定机架、旋转机架和治疗床。固定机架与旋转机架可转动连接，固定机架能够支撑旋转机架旋转。旋转机架为中心具有开口的环形、头盔形或C形结构，且旋转机架上安装有治疗源。治疗床位于固定机架的一侧，用于支撑患者。
图1是本发明实施例提供的一种放射治疗设备的结构示意图，如图1所示，该放射治疗设备可以包括：固定机架1、旋转机架2、设置在固定机架1一侧的治疗床5。其中，旋转机架2上设置有治疗源(图中未示出)，治疗床5可沿第一方向远离或靠近固定机架1，该第一方向为固定机架1的轴线m的方向。
在放射治疗过程中，治疗源可在旋转机架2的带动下绕患者身体旋转，从各个角度对患者的患部进行治疗。并且，该旋转机架2的设置可以避免治疗源发射的射线长时间持续照射患者的非患部部位(也即是正常组织和器官)。
对于头部放射治疗设备而言，固定机架1可以为环形，旋转机架2可以为中心具有开口的头盔形；对于体部放射治疗设备而言，固定机架1可以为环形或矩形，旋转机架2可以为滚筒或C形臂。本发明实施例中，以固定机架1为环形的头部放射治疗设备为例进行说明。
如图1所示，本发明放射治疗设备还包括影像装置3，影像装置3可以包括相对设置的射线发射器31和探测器32，射线发射器31和/或探测器32设置在固定机架1上，射线发射器31发出的射线经过患者患部后由探测器32接收，用于采集患者患部图像。
上述射线发射器31可以为X射线球管，治疗源可以发射X射线或伽马(γ)射线，其中，治疗源发射的射线能量较高，一般为兆伏级别；射线发射器31发射的射线能量较低，一般为千伏级别。
其中，固定机架1包括机架主体12和底座11，因此，影像装置3中的射线发射器31和/或探测器32可以设置在机架主体12上，也可以设置在底座11上。
一方面，该影像装置3中的射线发射器31和探测器32可以均设置在机架 主体12上，或者均设置在底座11上；另一方面，影像装置3中的射线发射器31和探测器32中的一个器件设置在机架主体12上或者底座11上，影像装置3中的另一个器件可以以固定机架1的轴线m所在的纵截面为对称面交叉对称设置在地面上或天花板上，例如可以直接在治疗室地面上安装该影像装置3中的器件，或者，也可以在天花板上安装该影像装置3中的器件；可以理解，影像装置3中的射线发射器31和探测器32中的一个器件可以设置在机架主体12上，另一个器件可以设置在底座11上，例如，在图1所示的结构中，射线发射器31设置在机架主体12上，探测器32设置在底座11上与射线发射器31相对的位置，射线发射器31发出的射线经过患者患部后由探测器32接收，由此，该影像装置3即可实现对患者患部图像的采集。
需要说明的是，该影像装置3可以为一组，也可以为多组，在放射治疗设备中仅包括一组影像装置3的情况下，该影像装置3中的射线发射器31和探测器32应当能够运动，在进行患者患部图像采集时，可以控制该射线发射器31和探测器32同时运动，以保证该一组影像装置3能够获取到至少两个不同角度的患部图像。
还需要说明的是，若该放疗设备中包括多组位于不同角度的影像装置3，在进行患者患部图像的过程中，该影像装置3中的器件可不发生运动，直接采用该多组影像装置3获取多个不同角度的患部图像即可。
在本发明实施例中，影像装置3可以在摆位验证过程中采集患部图像，并将患部图像发送至配准模块，以便配准模块根据该患部图像确定摆位误差。
综上所述，本发明实施例提供的放射治疗设备包括设置在固定机架上的影像装置，影像装置中包括相对设置的射线发射器和探测器，其中，该射线发射器发出的射线可以穿过患者患部后由探测器接收，以采集患者患部的图像。由于将影像装置与放射治疗设备进行了一体化设计，有效提高了放射治疗设备的定位精度，改善了放射治疗的效果。
同时，由于影像装置中的至少一个器件(射线发射器和/或探测器)设置在放射治疗设备中的固定机架上，使得工程师在安装调试该放射治疗设备过程中，至多只需安装并调试影像装置中的一个器件，有效减少了安装和调试影像装置的时间。
在本发明的另一实施例中，该影像装置3中的射线发射器31和/或探测器32可以与固定机架1活动连接，使得射线发射器31和/或探测器32能够相对 于固定机架1运动，以靠近或远离治疗床5。
示例地，射线发射器31和/或探测器32可以通过滑轨直接与固定机架1连接，使得射线发射器31和/或探测器32能够相对于固定机架1运动，以靠近或远离治疗床5。即：需要采用影像装置进行患者患部图像采集时，射线发射器31和/或探测器32从初始位置沿滑轨运动，以靠近治疗床5，进行患者患部图像采集；影像装置工作完成后，射线发射器31和/或探测器32沿滑轨运动，以远离治疗床5，退回初始位置。
示例地，射线发射器31和/或探测器32可以通过支撑臂与机架主体12连接，支撑臂带动射线发射器31和/或探测器32相对于机架主体12运动，以靠近或远离治疗床5。
参考图1、2，该放射治疗设备还可以包括：支撑臂4，该支撑臂4上可以连接有上述的射线发射器31和/或探测器32，其中，该支撑臂4用于带动与其连接的射线发射器31和/或探测器32相对于固定机架1运动，以靠近或远离治疗床5。
其中，该支撑臂4可以设置在机架主体12上，也可以设置在底座11上。
在该支撑臂4设置在机架主体12上的情况下：
在一种可选的实现方式中，每组影像装置3中的射线发射器31和探测器32中的一个器件可以设置在一个支撑臂4上，射线发射器31和探测器32中的另一个器件可以设置在底座11上或治疗室的地面上或者天花板上。
示例的，在图1所示的结构中，两个支撑臂4设置在机架主体12远离底座11的一端。射线发射器31设置在支撑臂4远离机架主体12的一端，探测器32设置在底座11上，并且每组影像装置3中射线发射器31和探测器32相对设置，即射线发射器31发出的射线经过患者患部可以由探测器32接收。
在另一种可选的实现方式中，影像装置3中的射线发射器31和探测器32可以均设置在支撑臂4上，此时，在机架主体12的两个相对位置可以分别设置一个支撑臂4，即：影像装置3中的射线发射器31可以设置在一个支撑臂4上，探测器32可以设置在另一个支撑臂4上，以保证射线发射器31和探测器32相对设置，即射线发射器31发出的射线经过患者患部可以由探测器32接收。
在该支撑臂4设置在底座11上的情况下：
在一种可选的实现方式中，每组影像装置3中的射线发射器31和探测器32中的一个器件可以设置在一个支撑臂4远离底座11的一端，射线发射器31 和探测器中32中的另一个器件可以设置在地面上或者底座11上或者设置在与该一个支撑臂4相对设置的另一支撑臂4靠近底座11的一端。
在另一种可选的实现方式中，每组影像装置3中的射线发射器31和探测器中32中的一个器件可以设置在一个支撑臂4靠近底座11的一端，射线发射器31和探测器中32中的另一个器件可以设置在天花板上或者设置在与该一个支撑臂4相对设置的另一支撑臂4远离底座11的一端。
图2是本发明实施例提供的又一种放射治疗设备的结构示意图，在图2所示的结构中，两个支撑臂4均设置在底座11上。其中，探测器32设置在一个支撑臂4远离底座11的一端，射线发射器31设置在底座11上与探测器相对位置上，即射线发射器31发出的射线经过患者患部可以由探测器32接收。
当支撑臂4设置在机架主体12上时，
可选的，如图3所示，该支撑臂4可以通过滑轨6带动与其连接的射线发射器31和/或探测器32相对于固定机架1运动，或者，该支撑臂4也可以通过转轴7带动与其连接的射线发射器31和/或探测器32相对于固定机架1运动。
一方面，机架主体12上可以设置有滑轨6，每个支撑臂4可以通过滑轨6与机架主体12连接，每个支撑臂4并可以沿该滑轨6的延伸方向移动，进而带动射线发射器31和/或探测器32沿滑轨6远离或靠近治疗床5移动。
另一方面，每个支撑臂4还可以与机架主体12通过转轴7连接，每个支撑臂4可以沿靠近或远离该治疗床5的方向旋转。
进一步的，当支撑臂4设置在机架主体12上时，每个支撑臂4还可以为伸缩臂，如图3所示，该伸缩臂的长度可以调整，通过伸缩臂带动射线发射器31和/或探测器32远离或靠近治疗床5移动。因此，在不使用影像装置时，为了避免影响治疗师的操作，除了可以移动、旋转支撑臂4，还可以调整支撑臂4的长度，进一步提高了放射治疗设备使用时的灵活性。
当该支撑臂4设置在底座上时，
可选的，如图2所示，该支撑臂4可以通过滑轨6带动与其连接的射线发射器31和/或探测器32相对于固定机架1运动，或者该支撑臂4也可以通过转轴7带动与其连接的射线发射器32和/或探测器32相对于固定机架1运动。
一方面，底座11上可以设置有滑轨6，每个支撑臂4可以通过滑轨6与底座11连接，该支撑臂4可以沿滑轨6的延伸方向移动，进而带动射线发射器31和/或探测器32沿滑轨6的延伸方向远离或靠近治疗床2移动。其中，该滑 轨6的延伸方向可以与固定机架1的轴线m方向一致，即图2中A方向，或者，该滑轨6的延伸方向可以与固定机架1的轴线m方向垂直。
另一方面，底座11上可以设置有转轴7，每个支撑臂4也可以通过该转轴7与底座11连接，此时，每个支撑臂4可以通过转轴7，沿靠近或远离该治疗床5的方向旋转，即图2、3中B方向。该转轴的旋转方向可以与固定机架的轴线m方向一致，也可以与固定机架的轴线m方向垂直。
需要说明的是，在本发明实施例中，机架主体12或者底座11上设置的滑轨6中还可以设置有滑动部，每个支撑臂4可以通过转轴7与该滑动部连接。由此，每个支撑臂4不仅可以沿滑轨6的延伸方向滑动，还可以旋转，有效提高了支撑臂4在使用过程中的灵活性。
还需说明的是，当支撑臂4设置在底座11上时，每个支撑臂4的形状可以适配于机架主体12的形状。例如，图2所示，机架主体12的形状为环形，则支撑臂4可以为弧形臂。此外，该支撑臂4也可以是其他形状的支撑臂，本发明实施例对该支撑臂的具体形状不做限定。
可选的，为了保证采集的患部图像的精度，该放射治疗设备中设置的影像装置3可以为多组，由于影像装置3的组数越多，采集到的患部图像的精度越高，摆位效果也越好，但成本也越高，因此为了在保证摆位效果的基础上节省成本，在本发明实施例中，如图2所示，该放疗设备中可以设置有两组影像装置3以及两个支撑臂4，该两组影像装置3中的器件可以设置在该两个支撑臂4上，该两个支撑臂4可以在第二方向上相对设置在固定机架1两侧的底座11上，该第二方向与第一方向垂直。也即是，该第二方向垂直于固定机架1的轴线m的方向。即：两组影像装置3的射线发射器31分别位于两个支撑臂4远离底座11的一端，其探测器32分别位于两个支撑臂4靠近底座11的一端，两组影像装置交叉设置；或者，两组影像装置3的射线发射器31分别位于一个支撑臂4远离底座11和靠近底座11的一端，其探测器32分别位于另一个支撑臂4靠近底座11和远离底座11的一端，两组影像装置交叉设置。
进一步的，如图2所示，该两组影像装置3以固定机架1的轴线m所在的纵截面为对称面镜像交叉对称设置，且两组影像装置3中射线发射器31发出的射线的夹角α可以为60度至120度，例如可以为90度。
进一步的，本发明实施例提供的放射治疗设备中还可以包括：驱动装置(图中未示出)。该驱动装置可以与影像装置3或者每个支撑臂4电连接，用于驱 动影像装置3或者每个支撑臂4移动。相应的，该放射治疗设备中还可以设置有驱动开关，当该驱动开关被触发(例如按压触发或者转动触发)时，驱动装置开始工作，并驱动影像装置3或者每个支撑臂4移动，以使得影像装置3的某一器件移动至工作位或者远离工作位。
在本发明实施例中，治疗师可以通过控制驱动装置控制影像装置3或者每个支撑臂4移动，使得影像装置3中的器件移动至工作位或者远离工作位。其中，该工作位可以包括摆位工作位，该摆位工作位为每组影像装置3中器件在摆位验证时所处的位置，当每组影像装置3中的器件位于工作位时，影像装置3中射线发射器31发出的射线可以经过摆位时的患者患部且可以由探测器32接收。该工作位是放射治疗设备生产时预先确定的固定位置，无需治疗师进行设置。
进一步的，该工作位还可以包括治疗工作位。在本发明实施例中，为了提高放射治疗精度，保证在在患者进行放射治疗的同时对患者患部进行实时监测，则每组影像装置3中的器件在治疗过程中可以位于治疗工作位，此时影像装置3中射线发射器31发出的射线可以经过治疗时的患者患部且可以由探测器32接收。
放射治疗过程中，在采用影像装置3对患者进行摆位前，治疗师还需要进行患者体位调整，以及为患者定位等操作，为了避免影像装置3或者支撑臂4影响治疗师操作，可以移动影像装置3或者支撑臂4，以使得影像装置3中的器件远离摆位工作位和治疗工作位。当治疗师完成摆位前所需的操作后，可以再次移动影像装置3或者支撑臂4，以使得影像装置3中的器件移动至摆位工作位。之后即可采用该影像装置3对患者进行摆位。
在使用影像装置3进行摆位时，治疗师可以先根据经验调整治疗床5的位置，以使得患者患部位于旋转机架2入口附近。之后即可开启影像装置3，此时，影像装置3中的每个射线发射器31发射X射线，由于X射线穿过不同厚度的物体时，会不同程度的衰减，而人体内不同的组织或器官的厚度均不相同，因此X射线通过患部区域发生不同程度的衰减。探测器32接收到衰减后的X射线，生成相应的患部图像，并发送给配准模块，该配准模块预先存储有该患者的患部诊断扫描图像，该配准模块可以对该患部图像与患部诊断扫描图像进行配准，以确定摆位误差，之后即可根据该摆位误差精确调整治疗床的位置。
在完成摆位后，还可以移动影像装置3或者支撑臂4，以使得影像装置3 中的器件远离摆位工作位，并移动至治疗工作位，以便在治疗过程中，对患者患部进行实时追踪。
综上所述，本发明实施例提供的放射治疗设备包括设置在固定机架上的影像装置，影像装置中包括相对设置的射线发射器和探测器，其中，该射线发射器发出的射线可以穿过患者患部后由探测器接收，以采集患者患部的图像。由于将影像装置与放射治疗设备进行了一体化设计，有效提高了放射治疗设备的定位精度，改善了放射治疗的效果。
同时，由于影像装置中的至少一个器件(射线发射器和/或探测器)设置在放射治疗设备中的固定机架上，使得工程师在安装调试该放射治疗设备过程中，至多只需安装并调试影像装置中的一个器件，有效减少了安装和调试影像装置的时间。
另外，本发明实施例提供的放射治疗设备中的影像装置可以相对于固定机架运动，以靠近或远离治疗床，在影像装置工作时，将其移入工作位，在影像装置停止工作时，将其移出工作位，避免影响治疗医师的操作。
本发明实施例提供了一种放射治疗系统，该系统可以包括：如图1至图3任一所示的放射治疗设备。
图4是本发明实施例提供的一种放射治疗系统示意图，如图4所示，该系统还可以包括：与放射治疗设备10建立有通信连接的配准模块20。
该放射治疗设备10用于向配准模块20发送采集的患部图像。
该配准模块20用于根据该患部图像和预先存储的患部诊断扫描图像确定患部位置误差。
其中，配准模块20中预先存储的患部诊断扫描图像为三维图像，影像装置采集的患部图像为二维图像，为了对患部诊断扫描图像与患部图像进行配准，配准模块20首先需要通过数字重建放射影像(Digitally Reconstructured Radiograph，DRR)技术将三维患部诊断扫描图像转换为二维患部诊断扫描图像，进而配准患部图像与该二维患部诊断扫描图像，以确定患部位置误差。
图5是本发明实施例提供的另一种放射治疗系统示意图，如图5所示，该系统还可以包括：分别与放射治疗设备10和配准模块20建立有通信连接的摆位控制模块30。
其中，配准模块20还用于向摆位控制模块30发送摆位误差。
该摆位控制模块30用于根据该摆位误差，调整该放射治疗设备10中治疗 床2的位置。由此可以实现放射治疗设备、配准模块和摆位控制模块的协同工作，有效提高了放射治疗的效率。
综上所述，本发明实施例提供的放射治疗系统中包括放射治疗设备和配准模块，该放射治疗设备中包括有影像装置。影像装置中包括相对设置的射线发射器和探测器，其中，该射线发射器发出的射线可以穿过患者患部后由探测器接收。在摆位验证时，影像装置可以采集患者患部的图像，并将患部图像发送至该配准模块，该配准模块可以根据该患部图像确定摆位误差。之后即可根据该摆位误差通过摆位控制模块精确调整治疗床的位置，有效提高了摆位精度，改善了放射治疗的效果。
以上所述仅为本发明的较佳实施例，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种放射治疗设备，其特征在于，所述设备包括：固定机架、旋转机架、影像装置和设置在所述固定机架一侧的治疗床，所述治疗床可沿第一方向远离或靠近所述固定机架；
    所述旋转机架与所述固定机架可转动连接，所述旋转机架上设置有治疗源；
    所述影像装置包括相对设置的射线发射器和探测器，所述射线发射器和/或所述探测器设置在所述固定机架上，所述射线发射器发出的射线经过患者患部后由所述探测器接收，用于采集患者患部图像。
  2. 根据权利要求1所述的设备，其特征在于，所述射线发射器和/或所述探测器能够相对于所述固定机架运动，以靠近或远离所述治疗床。
  3. 根据权利要求2所述的设备，其特征在于，所述设备还包括：支撑臂，所述支撑臂上连接有所述射线发射器和/或所述探测器，所述支撑臂带动与其连接的射线发射器和/或探测器相对于所述固定机架运动，以靠近或远离所述治疗床；
    其中，
    所述固定机架包括机架主体和底座；
    所述支撑臂设置在所述机架主体上，或者，所述支撑臂设置在所述底座上。
  4. 根据权利要求3所述的设备，其特征在于，在所述支撑臂设置在所述机架主体上的情况下；
    所述支撑臂通过滑轨带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
    所述支撑臂通过转轴带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
    所述支撑臂为伸缩臂。
  5. 根据权利要求3所述的设备，其特征在于，在所述支撑臂设置在所述底座上的情况下；
    所述支撑臂通过滑轨带动与其连接的射线发射器和/或探测器相对于所述固定机架运动；或者，
    所述支撑臂通过转轴带动与其连接的射线发射器和/或探测器相对于所述固定机架运动。
  6. 根据权利要求5所述的设备，其特征在于，所述放疗设备包括两组影像装置以及两个支撑臂，所述两组影像装置设置在所述两个支撑臂上；
    所述两个支撑臂在第二方向上相对设置在所述固定机架两侧，所述第二方向与所述第一方向垂直。
  7. 根据权利要求6所述的设备，其特征在于，所述两组影像装置中射线发射器发出的射线的夹角为60度至120度。
  8. 一种放射治疗系统，其特征在于，所述系统包括：如权利要求1至7任一所述的放射治疗设备。
  9. 根据权利要求8所述的系统，其特征在于，所述系统还包括：与所述放射治疗设备建立有通信连接的配准模块；
    所述放射治疗设备用于向所述配准模块发送摆位验证时采集的患部图像；
    所述配准模块用于根据所述患部图像和预先存储的患部诊断扫描图像确定摆位误差。
  10. 根据权利要求9所述的系统，其特征在于，所述系统还包括：分别与所述放射治疗设备和所述配准模块建立有通信连接的摆位控制模块；
    所述配准模块还用于向所述摆位控制模块发送所述摆位误差；
    所述摆位控制模块用于根据所述摆位误差，调整所述放射治疗设备中治疗床的位置。
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CN106714905A (zh) * 2016-08-01 2017-05-24 深圳市奥沃医学新技术发展有限公司 一种放射治疗设备以及射束成像方法
CN206424436U (zh) * 2016-08-17 2017-08-22 深圳市奥沃医学新技术发展有限公司 一种治疗设备

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CN113521570A (zh) * 2021-08-18 2021-10-22 浙江省人民医院 一种便于固定患者体位的放射治疗设备
CN113521570B (zh) * 2021-08-18 2023-09-05 浙江省人民医院 一种便于固定患者体位的放射治疗设备

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