WO2018090196A1 - 一种治疗设备 - Google Patents

一种治疗设备 Download PDF

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Publication number
WO2018090196A1
WO2018090196A1 PCT/CN2016/105936 CN2016105936W WO2018090196A1 WO 2018090196 A1 WO2018090196 A1 WO 2018090196A1 CN 2016105936 W CN2016105936 W CN 2016105936W WO 2018090196 A1 WO2018090196 A1 WO 2018090196A1
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WO
WIPO (PCT)
Prior art keywords
sliding
detector
moving plate
rail
treatment
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Application number
PCT/CN2016/105936
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English (en)
French (fr)
Inventor
陈方正
刘海峰
Original Assignee
西安大医数码技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 西安大医数码技术有限公司 filed Critical 西安大医数码技术有限公司
Priority to PCT/CN2016/105936 priority Critical patent/WO2018090196A1/zh
Priority to CN201680090818.4A priority patent/CN110099717B/zh
Publication of WO2018090196A1 publication Critical patent/WO2018090196A1/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

Definitions

  • the present invention relates to the field of radiotherapy devices and, more particularly, to a therapeutic device.
  • FIG. 1 The core components of the prior art treatment device are shown in FIG. 1, including a roller 904, a treatment head 900 and a first detector 901 corresponding to the treatment head 900, and a set of image guiding devices including a bulb 902 and a balloon 902. Corresponding second detector 903.
  • the treatment head 900 emits radiation of therapeutic level energy for irradiation treatment of tumors.
  • the primary function of the first detector 901 is to detect whether the radiation dose emitted by the treatment head 900 matches the patient's treatment plan, ie, dose verification.
  • the image guiding system is used for pre-treatment positioning or real-time positioning in the treatment of the patient, wherein the main function of the second detector 903 is to detect the x-rays emitted by the bulb 902 and pass through the patient, thereby realizing imaging of the tumor-related region. .
  • detectors are expensive, using multiple detectors increases equipment costs.
  • the detector has a limited service life in a radiation environment, and multiple detectors need to be repaired or replaced in subsequent equipment maintenance, which further increases equipment costs.
  • the present invention provides a therapeutic device that enables functions such as dose verification or image guidance with fewer detectors.
  • a treatment device comprising a drum, a detector and a sliding drive unit, the sliding drive unit comprising a sliding guide, a driving device and a moving plate, the detector being fixed on the moving plate, the moving plate being driven by the driving plate Driven by the device, the detector is driven to slide along the sliding guide.
  • the treatment device of the present invention comprises a roller, a detector and a sliding drive unit
  • the sliding drive unit comprises a sliding guide, a driving device and a moving plate
  • the detector is fixed on the moving plate.
  • the moving plate is driven by the driving device to drive the detector to slide along the sliding guide.
  • the moving plate can be moved along the sliding guide by the driving device, and the detector on the moving plate also moves along the sliding plate along the moving plate, so that the detector can move along the sliding guide, thereby
  • This detector can be moved to different positions to receive the rays from different ray hairs, so that the detector settings can be reduced.
  • Even if there are multiple ray heads only a small number of detectors can be set to detect the rays of different ray heads. Thereby, functions such as dose verification or image guidance can be realized by using fewer detectors, which saves a lot of treatment space, and fewer detectors can greatly reduce the purchase cost and maintenance cost of the treatment equipment.
  • Figure 1 is a schematic view showing the structure of a prior art treatment device
  • FIG. 2 is a schematic structural view of a treatment device according to an embodiment of the present invention.
  • FIG. 3 is a partial perspective view of a treatment device according to an embodiment of the present invention.
  • Figure 4 is a side elevational view of a treatment device provided by an embodiment of the present invention.
  • FIG. 5 is a partial schematic view of a treatment device according to an embodiment of the present invention.
  • Figure 6 is a partial structural view of a treatment device according to an embodiment of the present invention.
  • Figure 7 is a partial structural view of a treatment device according to an embodiment of the present invention.
  • FIG. 8 is a schematic view showing a movement direction of a pulley seat of a treatment apparatus according to an embodiment of the present invention.
  • Figure 9 is a schematic view showing the deflection of the pulley block of the treatment device according to the embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a treatment device according to an embodiment of the present invention.
  • Figure 11 is a side elevational view of the treatment device of Figure 10.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • a plurality means two or more unless otherwise stated.
  • the term “comprises” and its variations are intended to cover a non-exclusive inclusion.
  • connection In the description of the present invention, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • the embodiment discloses a treatment device, as shown in FIG. 2 and FIG. 3, exemplarily, comprising a drum 11, a detector 16 and a sliding driving unit, the sliding driving unit comprises a sliding guide 12, a driving device and a moving plate 15, the detector 16 is fixed on the moving plate 15, and the moving plate 15 drives the detector 16 to slide along the sliding guide 12 under the driving of the driving device.
  • the moving plate 15 can be moved along the sliding guide 12 by the driving device, and the detector 16 on the moving plate 15 also moves along the sliding plate 12 along the moving plate 15 to make the detector.
  • 16 can be moved along the slide rail 12 such that the detector 16 can be moved to different positions to receive radiation from different heads 10, thus reducing the setting of the detector 16, even if there are multiple heads 10, It is also possible to provide only a small number of detectors 10 to detect the rays of different ray heads 10, thereby enabling functions such as dose verification or image guidance with fewer detectors 16, saving a large amount of treatment space, and fewer detectors 16 The cost of purchasing and maintenance of the treatment device can be greatly reduced.
  • the treatment device includes two ray heads 10, a motion plate 15, and a detector 16.
  • the ray head 10 shown by a rectangle is a treatment head 13
  • the ray head 10 shown by a circle is an imaging head 14.
  • the moving plate 15 is movable along the sliding guide 12, and the detector 16 is disposed on the moving plate 15, and the detector 16 moves along the sliding guide 12 along with the moving plate 15.
  • the movement of the detector can be respectively opposite the position of the treatment head 13 or the imaging head 14, and when the detector 16 is at the first position 21 opposite the treatment head 13, the detector 16 receives the beam from the treatment head 13.
  • the dose of radiation from the treatment head 13 can then be dose verified, or during the treatment, the detector 16 receives a beam of radiation from the body of the treatment head 13 to image the area of the human lesion.
  • the detector 16 can image the lesion area of the human body after receiving the beam of radiation passing through the human lesion by the imaging head 14, thereby serving the position before treatment. Or tumor tracking during treatment, etc.
  • the detector 16 can also image the lesion area of the human body according to the radiation beam emitted by the receiving treatment head 13, so that when the detector 16 moves to the second At the position 22, after receiving the beam of rays passing through the human lesion by the imaging head 14, the detector 16 can image the lesion area of the human body, and then image the lesion area from different angles to form a three-dimensional image of the lesion.
  • FIG. 2 is a specific embodiment for explaining the principle and effect of the present invention.
  • the therapeutic apparatus provided by the embodiment of the present invention does not specifically limit the number of the radiation head and the detector.
  • the treatment head emits a high-dose radiation beam, and the radiation beam passes through the human body lesion, and is used for irradiating the tumor at the lesion to damage the tissue to cause death, thereby achieving therapeutic purposes.
  • the treatment head emits MV-level gamma rays, which may be, for example, an accelerator, or may include a radiation source such as cobalt-60 or the like.
  • the imaging head emits a low-dose radiation beam, and the intensity of the radiation beam changes after passing through the human lesion area, so that the tumor image of the lesion area can be determined according to the intensity of the radiation beam.
  • the imaging head is an X-ray tube that emits K-level X-rays.
  • the number of the treatment head and the imaging head is not limited to one, and may be a plurality of treatment heads and a plurality of imaging heads. It is also possible to set two or more of the treatment heads, or two or more of them to be imaging heads and the like.
  • the embodiment of the present invention does not specifically limit the treatment head, the imaging head, and the like, and only the above is taken as an example.
  • the detector may be one or more. When there are multiple detectors, multiple detectors may be respectively disposed on multiple motion plates, or multiple detectors may be disposed on one motion plate. on. Illustratively, the detector may be comprised of two, one of which is disposed on the motion plate and the other of which is attached to the drum.
  • the sports tablet can be set at least One, you can also set two, three, etc., set the detector on each sports plate.
  • the detectors provided on the motion plate may be one, or two, three, and the like.
  • the stroke length of the slide rail can be set as needed, either curved or circumferential, and can be set according to the position that the detector needs to reach.
  • the detector 16 and the sliding drive unit are disposed on the inner side of the drum 11; the slide rail 12 is curved, and the center of the slide rail 12 coincides with the center of the drum 11. Then, the path driven by the sliding drive unit to drive the detector 16 is an arc segment.
  • the center of the slide guide 12 coincides with the center of the drum 11, so that the path of movement of the probe 16 is an arcuate section concentric with the drum 11.
  • the driving device includes a driver 18, a first power portion 19 disposed on the moving plate, and a second power portion 20 disposed on the sliding rail 12, the first power portion 19 Cooperating with the second power portion 20 drives the motion plate 15 to slide along the slide rail 12.
  • the driver 18 serves as a power source for driving, and the driving motion plate 15 is slid on the slide rail 12, and the cooperation of the first power portion 19 and the second power portion 20 can ensure the sliding of the motion plate 15.
  • the driver may be a motor, a hydraulic power unit, a pneumatic motor, etc.
  • the first power unit may be an output unit at an output end of the motor, the hydraulic power unit, the air motor, or the like, such as a gear, a pulley, a slider, etc., the second power
  • the part cooperates with the first power part, and may be a gear, a rack, a guide rail, a slide rail or the like.
  • the driver is fixed on the motion plate, and the driver outputs power to the first power portion, and the first power portion cooperates with the second power portion on the slide rail to drive the motion plate to slide on the slide rail.
  • the first power portion 19 includes a first transmission portion 41
  • the second power portion 20 includes a second transmission portion 42, which is connected to the motion plate 15 and the driver 18, respectively.
  • the transmission portion 42 is disposed on the slide rail 12, and the driver 18 drives the first transmission portion 41 to move on the second transmission portion 42, and drives the motion plate 15 to slide along the slide rail 12.
  • the driver 18 can transmit power to the first transmission portion 41, driving the first transmission portion 41 to move on the second transmission portion 42, thereby sliding the motion plate 15 along the slide rail 12.
  • the driver 18 may be a motor 23 mounted on the motion plate 15, and the first transmission portion 41 may be a motor gear 24 mounted on the motor 23, and the second transmission portion 42 It may be a ring gear 25 disposed on the slide rail 12 such that the motor 23 outputs power to the motor gear 24, and the motor gear 24 meshes with the ring gear 25 to drive the motion plate 15 to move on the slide rail 12.
  • the first transmission portion 41 may also be a pulley, a slider, etc.
  • the second transmission portion 42 may also be a guide rail, a slide rail, or the like.
  • the first power portion 19 further includes a sliding portion 26 disposed on the moving plate 15, and the second transmission portion 20 further includes a sliding portion 27 on which the sliding portion 27 is mounted.
  • the slide portion 26 cooperates with the slide rail portion 27 to slide relative to each other.
  • the sliding portion 26 may be a pulley 28, and the rail portion 27 may be a slide rail 29 provided on the slide rail, such as a flange or a groove, to be engaged with the pulley 28.
  • the rail portion may include at least one groove, the groove is disposed on the sliding rail, and the pulley is provided with a flange that cooperates with the groove; or the pulley is provided with at least one groove, and the sliding portion includes and the concave portion A grooved flange that is disposed on the slide rail.
  • the groove of the pulley or the rail portion may be provided in at least one or a plurality of grooves.
  • the derailment of the pulley can be prevented, and the cooperation between the pulley and the slide rail is more stable.
  • the first transmission portion and the sliding portion are disposed on the moving plate, and the second transmission portion and the sliding portion are disposed on the sliding guide rail, so that the first transmission portion and the second transmission portion cooperate as a power transmission, and the driving motion plate is driven
  • the sliding rail moves, and the sliding portion cooperates with the sliding rail portion to not only support the moving plate to be stably mounted on the sliding rail, but also the friction between the sliding portion and the sliding portion is small, so that the sliding plate of the moving plate slides more smoothly. , smooth. In this way, the detector can be moved to the desired position faster and more accurately, ensuring the working efficiency and working reliability of the detector.
  • the slide rail portion is a flange
  • the second transmission portion is a ring gear as an example.
  • the flange and the ring gear may be arranged such that the ring gear is located outside the flange or the ring gear is located inside the flange.
  • the slide rail portion and the slide rail may be integrally formed, or the slide rail portion may be separately processed and assembled with the slide rail.
  • the second transmission portion and the sliding guide rail may be integrally formed, or the second transmission portion may be assembled with the sliding guide rail after being processed.
  • At least one sliding portion 26 is respectively disposed on both sides of the sliding guide 12, and the sliding portions 26 on both sides sandwich the sliding guide 12.
  • the sliding guides 26 can be held by the sliding portions 26 on both sides of the slide rail 12, so that the movement of the moving plate 15 on the slide rail 12 is more stable.
  • at least one pulley 28 may be disposed on both sides of the sliding rail 12, so that the pulleys 28 on both sides can clamp and fix the sliding rail 12, thereby making the moving plate 15 more stable. Mounted on the slide rail 12 ensures smooth and reliable movement of the moving plate 15 on the slide rail 12.
  • two parallel sliding guides 12 are disposed, and the moving flat plate 15 is located between the two sliding guides 12, so that the movement plate can be installed more stably.
  • the end of the sliding plate 12 and the sliding rail 12 are respectively provided with four pulleys 28, and two sides of the sliding rail 12 are respectively provided, so that the moving plate can be more stably installed on the sliding rail, and the sliding stability is ensured. reliable.
  • the sliding portion 26 is movable relative to the moving plate 15.
  • the adjustment of the sliding portion 26 and the rail portion 27 is performed, so that the movement of the probe in the radial direction of the drum can be adjusted by a slight distance.
  • the direction in which the sliding portion 26 can move may be parallel to the moving direction of the moving plate 15.
  • the mounting plate 31 is fixed to the moving plate 15, and the sliding portion 26 is disposed on the mounting seat 31, and the sliding portion 26 is movable relative to the mounting seat 31.
  • the sliding portion 26 is fixed to the moving plate 15 by the mounting seat 31, which facilitates the attachment and detachment of the sliding portion 26 and facilitates the adjustment of the sliding portion 26.
  • the pulley portion 26 further includes a pulley seat 30 on which the pulley 28 is mounted, the pulley block 30 is mounted on the mounting seat 31, and the pulley block 30 is movable relative to the mounting seat 31.
  • the pulley 28 can be integrally mounted on the pulley block 30, and then mounted integrally on the mounting seat 31 for easy assembly.
  • the mounting seat 31 is provided with a sliding slot 33 , and the pulley seat 30 slides along the sliding slot 33 . This allows the pulley block 30 to move in the chute 33 to adjust the pulley block 30.
  • the mounting seat 31 is connected to the baffle by a locking device, and the pulley block is moved or fixed relative to the mounting seat 31 by the locking device.
  • the locking device comprises a first locking device and a second locking device, wherein the first locking device and the second locking device are opposite to each other in the direction of the biasing force of the pulley block.
  • the mounting seat 31 is provided with a baffle 40, and the baffle 40 is provided with a straight hole.
  • the first locking device includes at least a first tensioning screw 34, one end of which is connected to the pulley block 30 and the other end of which passes through a straight hole in the baffle 40. If the straight hole 40 is provided with a thread, the first tension screw 34 is screwed with the straight hole; or the first locking device further includes a first nut 36, and the first tension screw 34 passes through the baffle 40 The straight holes are connected and fixed by the first nut 36.
  • the second locking device includes at least a second tensioning screw 35 having one end in contact with the pulley block 30 and the other end passing through a straight hole in the baffle 40. If the straight hole is provided with a thread, the second tension screw 35 is screwed with the straight hole; or the second locking device further includes a second nut 37, and the second tension screw 35 passes through the straight through the baffle 40 The holes are connected and fixed by a second nut 37.
  • first tensioning screw 34 and the second tensioning screw 35 apply the pulley 13 is opposite.
  • one end of the first tensioning screw 34 is fixedly coupled to the pulley block 30, and may be, for example, welded or screwed.
  • the other end of the first tensioning screw 34 is fixed by the first nut 36 through a straight hole in the baffle 40.
  • a force is applied to the pulley block 30 in the direction of the arrow (Fig. 8) to restrict the movement of the pulley block 30 relative to the mounting seat 31.
  • One end of the second tension screw 35 is in contact with the pulley block 30 and applies a force to the pulley block 30 in the direction indicated by the arrow, and the other end passes through a straight hole in the shutter 40 and is defined on the shutter 40.
  • a second nut 37 is disposed on the baffle 40 at the position of the straight hole. The second tension screw 35 and the second nut 37 may be screwed to restrict the movement of the pulley block 30 relative to the mounting seat 31.
  • the first tensioning screw and the second tensioning screw are oppositely applied to the pulley seat, the first tensioning screw and the second tensioning screw are adopted.
  • the tensioning method of “one pull and one top” means that the second tensioning screw is turned inward and the first tensioning screw is pulled outward, so that the pulley seat can no longer be moved in the direction of the chute, and finally, the nut is separately used. Lock the two tensioning screws so that the pulley and the "L-shaped" mount are not displaced relative to each other.
  • the locking method keeps the distance from the detector to the treatment head or the tube instrument constant, and the image size ratio is always constant, which makes it easier to accurately detect and control the absorbed dose of the patient, and lays a foundation for precise radiotherapy.
  • the tensioning member is not limited to the screw, and the number of the tensioning members is not limited in the embodiment of the present invention, and only the illustrated example is taken as an example.
  • first locking device and/or the second locking device further comprise a protective nut connected to the first tensioning screw and/or the second tensioning screw on the other side of the baffle.
  • first locking nut 38 and the second locking device each include a protective thread.
  • the first protective nut 38 is screwed to the first tensioning screw 34 on the other side of the baffle.
  • the nut 39 is threadedly coupled to the second tensioning screw 35 on the other side of the baffle to define movement of the pulley block 30.
  • the moving plate 15 is provided with a cover plate 151.
  • the detector 16 is disposed between the moving plate 15 and the cover plate 151.
  • the cover plate 151 is provided with a through hole 152 for The detector 16 is exposed to receive radiation. This allows the detector 16 to follow the motion plate 15 movements and receiving rays.
  • the detector is mounted on the moving plate by a moving mechanism that is movable in the radial direction of the drum. This increases or decreases the distance of the moving plate to the center of the drum, thereby adjusting the size of the beam on the detector.
  • the motion structure can cause the detector to move a large distance along the radial direction of the drum.
  • the motion mechanism can be mounted on the jacking device between the detector and the motion plate.
  • the motion mechanism may also be located on the side of the detector. The present invention does not specifically limit the position of the motion mechanism and the manner in which the motion of the detector is implemented.
  • the detector is mounted on the moving plate by a drive mechanism that is movable in the axial direction of the drum.
  • a drive mechanism that is movable in the axial direction of the drum.
  • the position of the detector to be adjusted axially depending on the position of the ray, allowing the detector to receive radiation more accurately.
  • the detector is significantly smaller than the moving plate, and the detector can also be moved on the moving plate, so that the detector has greater flexibility.
  • the detector is moved between the two slide rails 12, i.e., in the axial direction of the drum.
  • the treatment device includes at least one focused treatment head and at least one conformal treatment head.
  • the treatment device includes at least one multi-source focused treatment head and at least one conformal intensity-modulating treatment head, for example, the treatment device can include a multi-source focusing treatment head and a conformal intensity-modulating treatment head, or the treatment device can include two A multi-source focused treatment head and a conformal intensity-modulating treatment head, or alternatively, the treatment device can include two multi-source focused treatment heads and two conformal intensity-modulating treatment heads.
  • FIG. 10 and FIG. 11 the present application exemplifies a treatment apparatus including a multi-source focusing treatment head 10 and a conformal intensity-modulating treatment head 20, and FIGS. 10 and 11 are multi-source focusing treatment heads 10 and The configuration of the conformal intensity-modulating treatment head 20 is exemplified.
  • the multi-source focusing treatment head generally means that the treatment head comprises a plurality of radiation sources, and the plurality of radiation sources respectively emit radiation beams, and the plurality of radiation beams are focused on a focusing point corresponding to different regions of the tumor, thereby realizing different tumors. Radiation therapy in the area.
  • a conformal intensity-modulating treatment head generally means that the treatment head includes a radiation source that emits a scattered cone beam, and the collimator or multi-leaf grating forms a beam-like region that is similar in shape to the tumor, and the cone beam is worn. The beam can be irradiated onto the tumor through the region to achieve radiation therapy of the tumor.
  • the multi-source focusing treatment head 10 includes a plurality of first radiation sources 11 , and a plurality of radiation sources emit a first radiation beam 13 , and the first radiation beam 13 passes through the collimator 12 .
  • the field diameter of the first radiation beam 13 can be adjusted, and the plurality of first radiation beams 13 are focused on a focus point that illuminates a partial region of the tumor 31 of the human body 30.
  • the conformal intensity modulated treatment head 20 includes a second radiation source 21 that emits a scattered cone beam 23, the multi-lobed grating 22 being formed
  • a beam of similar shape to the tumor 31 can pass through the region through which the cone beam 23 can be irradiated onto the tumor 31, thereby achieving radiation therapy of the tumor 31.
  • the beam formed by the multi-blade grating can change more through the region, and the conformal shape can also be formed by forming a beam traversable region of the irradiated tumor portion.
  • the present invention does not make the conformal illumination region of the multi-lobed grating. Specifically limited.
  • the treatment device also includes other devices and the like.
  • the treatment device includes a base 50, a roller 40, a treatment head, and a treatment bed 60.
  • the base 50 is the basis of the entire treatment device and functions to carry the entire treatment device and to fix it.
  • a treatment bed 60 is disposed on the base 50, and the treatment bed 60 is coupled to the base 50 by screws and pins.
  • the treatment couch 60 is used to carry and secure the patient, and the patient's condition can be accurately delivered to the designated location of the treatment device.
  • the base 50 is further provided with a drum 40 which is connected to the base 50 by a rolling support, and the drum is rotated about the axis by gear transmission.
  • the multi-source focusing treatment head and/or the conformal intensity-modulating treatment head are continuously oscillated around the focus on the axial plane of the drum to achieve focusing and/or conformal treatment of non-coplanar, different angles of incidence.
  • the multi-source focusing treatment head and/or the conformal intensity-modulating treatment head are coupled to the drum by a circular arc guide such that the multi-source focusing treatment head and/or the conformal intensity-modulating treatment head are wound around the focus on the axial plane of the drum. Continuously swing.
  • the radiotherapy apparatus further includes a dynamic image guiding system
  • the dynamic image guiding system includes a set of stereoscopic image devices of a set angle or a fixed angle
  • the stereoscopic imaging device is configured to detect the position of the patient or the spatial position of the lesion.
  • the two sets of imaging devices in the stereoscopic imaging device have an angle between 20° and 160°
  • the stereoscopic imaging device includes an X-ray generator and an image detection acquisition system.
  • a driving method of a treatment apparatus comprising at least a first ray head and a second ray head; and the driving method comprises:
  • the driving device drives the moving plate to slide along the sliding rail to the first position to receive the radiation beam of the first ray hair at the first position;
  • the driving device drives the moving plate to slide along the sliding rail to a second position to receive the radiation beam from the first ray head and/or the second ray hair at the second position.
  • the method further includes adjusting the first locking device such that the sliding portion moves relative to the moving plate.
  • the sliding portion and the sliding portion can be adjusted according to the matching condition of the sliding portion to adapt to different sliding guides.
  • the method further includes the drive structure driving the detector to move axially along the drum on the moving plate. This allows the position of the detector to be adjusted axially depending on the position of the ray, allowing the detector to receive radiation more accurately.
  • the method further includes the motion mechanism driving the radial movement of the motion plate along the drum to increase or decrease the distance of the motion plate to the center of the drum. This increases or decreases the distance of the moving plate to the center of the drum, thereby adjusting the size of the beam on the detector.
  • the first ray head and the second ray head are both MV-level treatment heads.

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Abstract

一种放疗器械领域的治疗设备，可减少探测器（16）的数量。该治疗设备包括滚筒（11）、探测器（16）和滑动驱动单元，滑动驱动单元包括滑动导轨（12）、驱动装置以及运动平板（15），探测器（16）固定在运动平板（15）上，运动平板（15）在驱动装置的驱动下，带动探测器（16）沿滑动导轨（12）滑动。

Description

一种治疗设备 技术领域
本发明涉及放疗器械领域，更具体的说，涉及一种治疗设备。
背景技术
现代肿瘤放疗技术已开始进入精确治疗时代，因此，实现精确的图像引导，控制患者所吸收的射线剂量使之与制定好的治疗计划达到高匹配度是至关重要的。现有的治疗设备的核心部件如图1所示，包括滚筒904、一个治疗头900和对应治疗头900的第一探测器901，以及一套图像引导装置，包含球管902和与球管902对应的第二探测器903。其中，治疗头900发出治疗级能量的放射线，用于肿瘤的照射治疗。第一探测器901的主要功能是检测治疗头900发出的射线剂量是否与患者的治疗计划相匹配，即进行剂量验证。图像引导系统用于对患者进行治疗前摆位或治疗中的实时定位，其中第二探测器903的主要功能是检测球管902发出的、穿过病人的x射线，从而实现对肿瘤相关区域成像。
由于探测器价格昂贵，使用多个探测器增加了设备成本。探测器在射线照射环境下具有有限的使用寿命，后续设备维护中，需要对多个探测器进行检修或更换，这进一步增加了设备成本。
发明内容
本发明提供了一种治疗设备,能够利用较少的探测器实现剂量验证或图像引导等功能。
本发明的目的是通过以下技术方案来实现的：
一种治疗设备，包括滚筒、探测器和滑动驱动单元，所述滑动驱动单元包括滑动导轨、驱动装置以及运动平板，所述探测器固定在所述运动平板上，所述运动平板在所述驱动装置的驱动下，带动所述探测器沿所述滑动导轨滑动。
本发明中的治疗设备由于包括滚筒、探测器和滑动驱动单元，滑动驱动单元包括滑动导轨、驱动装置以及运动平板，探测器固定在运动平板上， 运动平板在驱动装置的驱动下，带动探测器沿滑动导轨滑动。采用这种方式，运动平板就可以在驱动装置的带动下，沿滑动导轨运动，运动平板上的探测器也随着运动平板在滑动导轨上运动，使探测器可以沿着滑动导轨运动，从而使这个探测器可以移动到不同的位置，接收不同的射线头发出的射线，这样就可以减少探测器的设置，即使有多个射线头，也可以只设置少量探测器检测不同的射线头的射线，从而能够利用较少的探测器实现剂量验证或图像引导等功能，节省了大量的治疗空间，同时较少的探测器也可以大大降低治疗设备的购置成本和维护成本。
附图说明
图1是现有技术的治疗设备的结构示意图；
图2是本发明实施例提供的治疗设备的结构示意图；
图3是本发明实施例提供的治疗设备的局部立体图；
图4是本发明实施例提供的治疗设备的侧视图；
图5是本发明实施例提供的治疗设备的局部示意图；
图6是本发明实施例提供的治疗设备的局部结构图；
图7是本发明实施例提供的治疗设备的部分结构图；
图8是本发明实施例提供的治疗设备的滑轮座的运动方向的示意图；
图9是本发明实施例提供的治疗设备的滑轮座的轴线方向偏转的示意图；
图10是本发明实施例提供的治疗设备的示意图；
图11是图10所示治疗设备的侧面示意图。
附图标记：
10-射线头、多源聚焦治疗头，11-滚筒、第一放射，12-滑动导轨、准直器，13-治疗头、第一放射束，14-成像头，15、运动平板，16-探测器，18-驱动器，19-第一动力部，20-第二动力部、适形调强治疗头，21-第一位置、第二放射源，22-第二位置、多叶光栅，23-电机、锥形束，24-电机齿轮，25-齿圈，26-滑动部，27-滑轨部，28-滑轮，29-滑轨，30-滑轮座、人体，31-安装座、肿瘤，33-滑槽，34-第一拉紧螺钉，35-第二拉紧螺钉，36-第二锁紧装置，37-螺母，151-盖板，152-通孔，40-挡板、滚筒，41-第一传动部，42-第二传动部，50-底座，60-治疗床。
具体实施方式
在本发明的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
下面结合附图和较佳的实施例对本发明作进一步说明。
本实施例公开一种治疗设备，如图2和图3所示，示例的，包括滚筒11、探测器16和滑动驱动单元，滑动驱动单元包括滑动导轨12、驱动装置以及运动平板15，探测器16固定在所述运动平板15上，运动平板15在驱动装置的驱动下，带动探测器16沿滑动导轨12滑动。
采用本实施例这种方式，运动平板15就可以在驱动装置的带动下，沿滑动导轨12运动，运动平板15上的探测器16也随着运动平板15在滑动导轨12上运动，使探测器16可以沿着滑动导轨12运动，从而使这个探测器16可以移动到不同的位置，接收不同的射线头10发出的射线，这样就可以减少探测器16的设置，即使有多个射线头10，也可以只设置少量探测器10检测不同的射线头10的射线，从而能够利用较少的探测器16实现剂量验证或图像引导等功能，节省了大量的治疗空间，同时较少的探测器16也可以大大降低治疗设备的购置成本和维护成本。
如图2和图3所示，示例的，以治疗设备包括两个射线头10、一个运动平板15和一个探测器16为例。图2所示的两个射线头10中，矩形所示的射线头10为治疗头13，圆形所示的射线头10为成像头14。如图2所示， 运动平板15可沿滑动导轨12运动，探测器16设置在运动平板15上，探测器16随着运动平板15沿滑动导轨12运动。当运动平板15位于第一位置21处，治疗头13发出的射线束照射到探测器16上，当探测器16位于第二位置22处，成像头14发出的射线束照射到探测器16上。这样就可以通过探测器的运动分别与治疗头13或成像头14的位置相对，且在探测器16位于第一位置21处与治疗头13相对时，探测器16接收治疗头13发出的射线束后可以对治疗头13发出的射线束进行剂量的验证，或者，在治疗过程中，探测器16接收治疗头13发出的经过人体病灶的射线束，从而对人体病灶区域成像。探测器在第二位置22处与成像头14相对时，探测器16接收成像头14发出的穿过人体病灶的射线束后，可以对人体的病灶区域进行成像，从而用于治疗前的摆位或治疗过程中的肿瘤追踪等。当然，在治疗过程中，探测器16位于第一位置21处时，探测器16还可以根据接收的治疗头13发出的放射束对人体的病灶区域进行成像，从而当探测器16移动至第二位置22处时，探测器16接收成像头14发出的穿过人体病灶的射线束后，可以对人体的病灶区域进行成像，进而从不同角度对病灶区域成像，形成病灶的三维图像。
本实施例中，图2所示的为其中一种具体实施方式，以说明本发明的原理和效果，本发明实施例提供的治疗设备，对射线头以及探测器的数量不做具体限定。本发明实施例中，治疗头为发出高剂量的放射束，放射束穿过人体病灶，用于将病灶处的肿瘤进行照射从而损坏其组织使其死亡，从而达到治疗目的。本实施例中，示例的，治疗头为发出MV级的γ射线，例如可以是加速器，或者是包括放射源例如可以是钴-60等。成像头为发出低剂量的放射束，放射束穿过人体病灶区域后其强度发出变化，从而可以根据放射束的强度确定病灶区域的肿瘤图像。示例的，成像头为X射线球管，其发出KV级的X射线。本实施例中，治疗头和成像头的数量不限于一个，也可以是多个治疗头、多个成像头。也可以设置为两个或多个都为治疗头，或两个或多个都为成像头等。本发明实施例对治疗头和成像头等不做具体限定，仅以上述为例进行说明。
本发明实施例中，探测器可以是一个或者多个，当探测器为多个时，可以是多个探测器分别设置在多个运动平板上，也可以是多个探测器设置在一个运动平板上。示例的，探测器可以是包括两个，其中一个探测器设置在运动平板上，另外一个探测器固定在滚筒上。运动平板可以设置至少 一个，也可以设置两个、三个等，在每个运动平板上设置探测器。运动平板上设置的探测器可以是一个，也可以是两个、三个等。滑动导轨的行程长度可以根据需要进行设置，可以为弧形，也可以为圆周的，可以根据探测器所需要达到的位置进行设置。
优选的，如图2、图3所示，本申请中，探测器16和滑动驱动单元设置在滚筒11的内侧；滑动导轨12为弧形，滑动导轨12的圆心与滚筒11的圆心重合。则滑动驱动单元驱动探测器16驱动的路径为弧形段。滑动导轨12的圆心与滚筒11的圆心重合，从而探测器16的移动路径为与滚筒11同心的弧形段。
本实施例中，如图3所示，示例的，驱动装置包括驱动器18、设置在运动平板上的第一动力部19以及设置在滑动导轨12上的第二动力部20，第一动力部19与第二动力部20配合带动运动平板15沿滑动导轨12滑动。这样驱动器18作为驱动的动力源，驱动运动平板15在滑动导轨12上滑动，而第一动力部19与第二动力部20的配合可以保证运动平板15的滑动。示例的，驱动器可以是电机、液压动力单元、气动马达等等，第一动力部可以是在电机、液压动力单元、气动马达等输出端的输出单元，如齿轮、滑轮、滑块等，第二动力部与第一动力部配合，可以是齿轮，齿条，导轨、滑轨等等。本实施例中，驱动器固定在运动平板上，驱动器将动力输出给第一动力部，第一动力部与滑动导轨上的第二动力部配合，从而驱动运动平板在滑动导轨上滑动。
如图3所示，示例的，第一动力部19包括第一传动部41，第二动力部20包括第二传动部42，第一传动部41分别与运动平板15和驱动器18连接，第二传动部42设置在滑动导轨12上，驱动器18驱动第一传动部41在第二传动部42上运动，并带动运动平板15沿滑动导轨12滑动。采用这种方式，驱动器18就可以将动力传输到第一传动部41，驱动第一传动部41在第二传动部42上运动，从而使运动平板15沿滑动导轨12滑动。
本实施例中，示例的，如图3所示，驱动器18可以是电机23，安装在运动平板15上，第一传动部41可以是安装在电机23上的电机齿轮24，第二传动部42可以是设置在滑动导轨12上的齿圈25，这样电机23将动力输出给电机齿轮24，电机齿轮24与齿圈25啮合后驱动运动平板15在滑动导轨12上运动。本实施例中，第一传动部41也可以是滑轮、滑块等，第二传动部42也可以是导轨、滑轨等等，上述仅为举例说明，不作为具体 限定。
如图3所示，示例的，第一动力部19还包括滑动部26，滑动部26设置在运动平板15上，第二传动部20还包括滑轨部27，滑轨部27安装在所述滑动导轨12上，滑动部26与滑轨部27配合，相对滑动。利用滑动部26与滑轨部27的配合，可以让运动平板15更加稳固的安装在滑动导轨12上，滑动部26与滑轨部27滑动可以减少摩擦，所需的驱动扭矩小。
如图3和图4所示，示例的，滑动部26可以是滑轮28，滑轨部27可以是设置滑动导轨上的滑轨29，例如凸缘或凹槽等，与滑轮28进行配合。利用滑轮滑动，滑轮与滑轨部之间为滚动摩擦，摩擦力较小，运动时阻力更小，驱动运动平板的驱动扭矩更小。示例的，可以是滑轨部包括至少一个凹槽，凹槽设置在滑动导轨上，滑轮上设有与凹槽配合的凸缘；或滑轮上设有至少一个凹槽，滑轨部包括与凹槽配合的凸缘，凸缘设置在滑动导轨上。滑轮或滑轨部的凹槽可以设置至少一条，也可以设置多条。采用上述几种方式，可以防止滑轮的脱轨，使滑轮与滑轨的配合更加稳定。本实施例中，在运动平板设置第一传动部和滑动部，在滑动导轨上设置第二传动部和滑轨部，这样第一传动部和第二传动部配合作为动力传动，驱动运动平板在滑动导轨上运动，而滑动部与滑轨部配合不仅可以支撑运动平板稳定的安装在滑动导轨上，而且滑动部与滑轨部间的摩擦较小，使运动平板在滑动导轨上滑动的更加平稳，顺畅。采用这种方式可以让探测器更快更准确的运动到所需位置，保证探测器的工作效率和工作可靠性。
本实施例中，示例的，如图5所示，以滑轨部为凸缘，第二传动部为齿圈为例说明。如图5所示，凸缘与齿圈的设置方式可以是齿圈位于凸缘的外侧，或者，是齿圈位于凸缘的内侧。另外，滑轨部与滑动导轨可以是一体成型，也可以是滑轨部单独加工后与滑动导轨装配。第二传动部与滑动导轨可以是一体成型，也可以是第二传动部加工后与滑动导轨装配。
如图3和图4所示，示例的，滑动导轨12的两侧分别设有至少一个滑动部26，两侧的滑动部26夹持滑动导轨12。这样就可以将利用滑动导轨12两侧的滑动部26夹持滑动导轨，从而让运动平板15在滑动导轨12上固定的更加稳定。如图4所示，示例的，可以在滑动导轨12上的两侧各设置至少一个滑轮28，这样两侧的滑轮28就可以对滑动导轨12进行夹持固定，从而让运动平板15更稳定的安装在滑动导轨12上，保证运动平板15在滑动导轨12上运动的平稳和可靠。
本实施例中，如图2所示和图4所示，示例的，设置有两条并行的滑动导轨12，运动平板15位于两条滑动导轨12之间，这样可以让运动平板安装的更加稳定。运动平板15与滑动导轨12配合的一端各设有四个滑轮28，滑动导轨12的两侧各设有两个，这样可以让运动平板更稳定的安装在滑动导轨上，并且保证滑动的稳定和可靠。
本实施例中，如图4所示，示例的，滑动部26相对于运动平板15可移动。这样就根据滑动部26与滑轨部27的配合情况进行调整，从而可以对探测器在滚筒的径向方向进行微距离的移动调整。示例的，滑动部26可运动的方向可以是与运动平板15的运动方向平行。参照图9所示，以图8所示的为例，若两个滑动部26向彼此远离的方向运动(即沿导轨12向上运动)，则由于滑动部26与运动平板15连接，滑动部26的运动将带动运动平板15沿滚筒的径向靠近滚筒的轴心，即从实线位置到虚线位置沿滚筒的径向靠近滚筒的轴心。
如图4和图7所示，示例的，运动平板15上固定有安装座31，滑动部26设置在安装座31上，滑动部26相对于安装座31可移动。滑动部26通过安装座31固定在运动平板15上，可以方便滑动部26的安装和拆卸，也方便滑动部26的调整。
如图6和图7所示，示例的，滑轮部26还包括滑轮座30，滑轮28安装在滑轮座30上，滑轮座30安装在安装座31上，滑轮座30相对于安装座31可移动。这样就可以将滑轮28集成安装滑轮座30上后，再整体安装在安装座31上，方便装配。如图6和图7所示，示例的，安装座31上设有滑槽33，滑轮座30沿滑槽33滑动。这样就可以让滑轮座30在滑槽33中运动，以便调整滑轮座30。
本发明另一实施例中，优选的，参照图7、图8所示，安装座31通过锁紧装置与挡板连接，在锁紧装置的作用下滑轮座相对于安装座31运动或位置固定。优选的，锁紧装置包括第一锁紧装置和第二锁紧装置，第一锁紧装置和第二锁紧装置向滑轮座的施力方向相反。
示例的，安装座31上设有挡板40，挡板40上设置有直孔。第一锁紧装置至少包括第一拉紧螺钉34，第一拉紧螺钉34的一端与滑轮座30连接，另一端穿过挡板40上的直孔。若直孔40上设置有螺纹，则第一拉紧螺钉34与直孔螺纹连接；或者，第一锁紧装置还包括第一螺母36，第一拉紧螺钉34穿过通过挡板40上的直孔通过第一螺母36连接固定。
第二锁紧装置至少包括第二拉紧螺钉35，第二锁紧装置的一端与滑轮座30接触，另一端穿过挡板40上的直孔。若直孔上设置有螺纹，则第二拉紧螺钉35与直孔螺纹连接；或者，第二锁紧装置还包括第二螺母37，第二拉紧螺钉35穿过通过挡板40上的直孔通过第二螺母37连接固定。
其中，第一拉紧螺钉34和第二拉紧螺钉35向滑轮座30施加的力的方向相反。示例的，如图7、图8所示，第一拉紧螺钉34的一端与滑轮座30固定连接，例如可以是焊接或螺纹连接。第一拉紧螺钉34的另一端穿过挡板40上的直孔由第一螺母36固定。向滑轮座30沿箭头(图8)方向施加作用力，以限制滑轮座30相对于安装座31运动。第二拉紧螺钉35的一端与滑轮座30接触并沿箭头所示方向向滑轮座30施加作用力，其另一端穿过挡板40上的直孔，并限定在挡板40上。其中挡板40上在直孔位置处设置有第二螺母37，第二拉紧螺钉35与第二螺母37可以是螺纹连接，从而限制滑轮座30相对于安装座31运动。
本发明实施例中，如图7、图8所示，由于第一拉紧螺钉和第二拉紧螺钉向滑轮座施加的作用力的方向相反，通过第一拉紧螺钉和第二拉紧螺钉“一拉一顶”的拉紧方式，即：第二拉紧螺钉向里顶，第一拉紧螺钉向外拉，则可限定滑轮座不再沿滑槽方向运动，最后，再用螺母分别锁紧两个拉紧螺钉，使得滑轮和“L型”安装座无相对位移。该锁紧方式使得探测器至治疗头或球管仪的距离始终保持恒定，图像的大小比例始终恒定，更容易实现患者吸收剂量的精确探测和控制，为精确放疗奠定基础。其中，拉紧件不限定于螺钉，本发明实施例也不限定拉紧件的数量，仅以图示的为例进行说明。
进一步优选的，第一锁紧装置和/或第二锁紧装置还包括防护螺母，防护螺母在挡板的另一侧与第一拉紧螺钉和/或第二拉紧螺钉连接。参照图7所示，以第一锁紧装置和第二锁紧装置均包括防护螺纹为例，第一防护螺母38在挡板的另一侧与第一拉紧螺钉34螺纹连接，第二防护螺母39在挡板的另一侧与第二拉紧螺钉35螺纹连接，从而限定滑轮座30的运动。这样就可以在滑轮座30在滑槽33的位置固定后，进一步的固定滑轮座30的位置，防止滑轮座30的意外位置变动。
示例的，如图3所示，运动平板15上设有盖板151，探测器16设置在所述运动平板15与所述盖板151之间，盖板151上设有通孔152以将所述探测器16露出，以便接收射线。这样就可以让探测器16随着运动平板 15运动，并且接收射线。
示例的，探测器通过一运动机构安装在所述运动平板上，可沿所述滚筒的径向运动。这样就可以增大或减小运动平板至滚筒中心的距离，从而调整射线束在探测器上的大小。需要说明的是，该运动结构可以使得探测器沿滚筒的径向运动较大的距离，示例的，该运动机构可以安装在探测器和运动平板之间的顶起装置。当然，运动机构也可以是位于探测器的侧面，本发明对运动机构的设置位置以及实现探测器运动的方式不做具体限定。
示例的，探测器通过一驱动机构安装在所述运动平板上，可沿所述滚筒的轴向运动。这样就可以根据射线的位置在轴向上调整探测器的位置，从而让探测器更加准确的接收射线。示例的，在探测器较小的情况下，探测器明显小于运动平板，则还可以使得探测器在运动平板上运动，使得探测器具有更大的灵活度。优选的，参照图3所示，使得探测器在两个滑动导轨12之间运动，即沿滚筒的轴向运动。
本发明实施例中，治疗设备包括至少一个聚焦治疗头和至少一个适形治疗头。治疗设备包括至少一个多源聚焦治疗头以及至少一个适形调强治疗头，例如，治疗设备可以是包括一个多源聚焦治疗头和一个适形调强治疗头，或者，治疗设备可以是包括两个多源聚焦治疗头和一个适形调强治疗头，再或者，治疗设备可以是包括两个多源聚焦治疗头和两个适形调强治疗头。如图10、图11所示，本申请以治疗设备包括一个多源聚焦治疗头10和一个适形调强治疗头20为例进行示例说明，图10、图11以多源聚焦治疗头10和适形调强治疗头20相对设置为例。
多源聚焦治疗头一般是指治疗头包括多个放射源，多个放射源分别发出放射束，该多个放射束聚焦于一个聚焦点，该聚焦点对应肿瘤的不同区域，从而实现对肿瘤不同区域的放射治疗。适形调强治疗头一般是指治疗头包括一个放射源，该放射源发出散射的锥形束，准直器或多叶光栅形成与肿瘤形状相似的射束可穿过区域，锥形束穿过该射束可穿过区域照射在肿瘤上，从而实现肿瘤的放射治疗。
示例的，如图10、图11所示，该多源聚焦治疗头10包括：多个第一放射源11，多个放射源发出第一放射束13，第一放射束13通过准直器12可以调节第一放射束13的射野直径，多个第一放射束13聚焦于聚焦点，该聚焦点照射在人体30的肿瘤31的部分区域。适形调强治疗头20包括第二放射源21，该第二放射源21发出散射的锥形束23，多叶光栅22形成与 肿瘤31形状相似的射束可穿过区域，锥形束23穿过该射束可穿过区域照射在肿瘤31上，从而实现肿瘤31的放射治疗。当然，多叶光栅形成的射束可穿过区域的变化较多，进行适形也可以是形成照射肿瘤部分区域的射束可穿过区域，本发明对多叶光栅的适形照射区域不做具体限定。
当然，治疗设备还包括其他装置等，例如，参照图10、图11所示，治疗设备包括底座50、滚筒40、治疗头以及治疗床60。底座50是整个治疗设备的基础，起到承载整个治疗设备及固定作用。底座50上设置有治疗床60，治疗床60通过螺钉、销钉与底座50连接。治疗床60则用于承载及固定病人，可以精确实现将病人的病症送到治疗设备指定位置。底座50上还设置有滚筒40，滚筒40通过滚动支撑与底座50相连，通过齿轮传动来实现滚筒绕着轴线旋转。
本发明实施例中，多源聚焦治疗头和/或适形调强治疗头在滚筒轴向平面上绕焦点进行连续摆动，以实现非共面、不同入射角的聚焦和/或适形治疗。示例的，多源聚焦治疗头和/或适形调强治疗头通过圆弧导轨与滚筒相连，以使得多源聚焦治疗头和/或适形调强治疗头在滚筒轴向平面上绕焦点进行连续摆动。
本发明实施例中，放疗设备还包括动态影像引导系统，动态影像引导系统包括一组或成固定角度的两组立体影像装置，立体影像装置用于检测患者的体位或病灶的空间位置。示例的，立体影像装置中的两组成像装置的夹角在20°到160°之间，立体影像装置包括X光发生器和影像探测采集系统。
根据本发明一个实施例中，公开一种治疗设备的驱动方法，治疗设备至少包括第一射线头和第二射线头；驱动方法包括：
驱动装置驱动运动平板沿滑动导轨滑动至第一位置，以在第一位置处接收第一射线头发出的放射束；
驱动装置驱动所述运动平板沿所述滑动导轨滑动至第二位置，以在第二位置处接收所述第一射线头和/或所述第二射线头发出的放射束。
采用这种方式就可以使用更少的探测器在驱动装置的驱动下，运动到第一位置接收第一射线头的放射束，运动到第二位置接收第二射线头的放射束，当然也可以运动到其他位置接收其他射线头的放射束，从而在治疗设备中使用更少的探测器实现剂量验证或图像引导等功能，节省了大量的治疗空间，同时较少的探测器也可以大大降低治疗设备的购置成本和维护 成本。
示例的，方法还包括：调节第一锁紧装置，使得滑动部相对所述运动平板运动。这样就可以在需要调整滑动部的时候，根据滑动部与滑轨部的配合情况进行调整，适配不同的滑动导轨。
示例的，所述方法还包括：驱动结构驱动所述探测器在运动平板上沿滚筒的轴向运动。这样就可以根据射线的位置在轴向上调整探测器的位置，从而让探测器更加准确的接收射线。
示例的，所述方法还包括：运动机构驱动所述运动平板沿滚筒的径向运动，以增大或减小所述运动平板至所述滚筒中心的距离。这样就可以增大或减小运动平板至滚筒中心的距离，从而调整射线束在探测器上的大小。
示例的，所述第一射线头和第二射线头均为MV级治疗头。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。

Claims (19)

  1. 一种治疗设备，其特征在于，包括滚筒、探测器和滑动驱动单元，所述滑动驱动单元包括滑动导轨、驱动装置以及运动平板，所述探测器固定在所述运动平板上，所述运动平板在所述驱动装置的驱动下，带动所述探测器沿所述滑动导轨滑动。
  2. 根据权利要求1所述的一种治疗设备，其特征在于，所述驱动装置包括驱动器、设置在所述运动平板上的第一动力部以及设置在滑动导轨上的第二动力部，所述第一动力部与所述第二动力部配合带动所述运动平板沿滑动导轨滑动。
  3. 根据权利要求2所述的一种治疗设备，其特征在于，所述第一动力部包括第一传动部，所述第二动力部包括第二传动部，所述第一传动部分别与所述运动平板和驱动器连接，所述第二传动部设置在所述滑动导轨上，所述驱动器驱动所述第一传动部在所述第二传动部上运动，并带动所述运动平板沿滑动导轨滑动。
  4. 根据权利要求2或3所述的一种治疗设备，其特征在于，所述第一动力部包括滑动部，所述滑动部与所述运动平板连接，所述第二传动部还包括滑轨部，所述滑轨部安装在所述滑动导轨上，所述滑动部与所述滑轨部配合，相对滑动。
  5. 根据权利要求4所述的一种治疗设备，其特征在于，所述滑动导轨的两侧分别设有至少一个滑动部，两侧的滑动部夹持所述滑动导轨。
  6. 根据权利要求4所述的一种治疗设备，其特征在于，所述滑动部相对于所述运动平板可移动。
  7. 根据权利要求6所述的一种治疗设备，其特征在于，所述运动平板上固定有安装座，所述滑动部设置在所述安装座上，所述滑动部相对于所述安装座可移动。
  8. 根据权利要求7所述的一种治疗设备，其特征在于，所述滑动部包括滑轮，所述滑轮与所述滑轨部配合滑动。
  9. 根据权利要求8所述的一种治疗设备，其特征在于，所述滑轨部包括至少一个凹槽，所述凹槽设置在所述滑动导轨上，所述滑轮上设有与所述凹槽配合的凸缘；或所述滑轮上设有至少一个凹槽，所述滑轨部包括与所述凹槽配合的凸缘，所述凸缘设置在所述滑动导轨上。
  10. 根据权利要求8所述的一种治疗设备，其特征在于，所述滑动部 还包括滑轮座，所述滑轮安装在所述滑轮座上，所述滑轮座安装在所述安装座上，所述滑轮座相对于所述安装座可移动。
  11. 根据权利要求10所述的一种治疗设备，其特征在于，所述安装座上设有滑槽，所述滑轮座沿所述滑槽滑动。
  12. 根据权利要求11所述的一种治疗设备，其特征在于，所述安装座上设有锁紧装置，在所述锁紧装置的作用下滑轮座相对于所述安装座运动或位置固定。
  13. 根据权利要求12所述的一种治疗设备，其特征在于，所述锁紧装置包括第一锁紧装置和第二锁紧装置，所述第一锁紧装置和所述第二锁紧装置向所述滑轮座的施力方向相反。
  14. 根据权利要求13所述的一种治疗设备，其特征在于，所述安装座上设有挡板，所述挡板上设置有直孔，所述直孔包括螺纹；
    所述第一锁紧装置至少包括第一拉紧螺钉，所述第一拉紧螺钉的一端与所述滑轮座连接，另一端限定在所述挡板上，所述第一拉紧螺钉与所述直孔螺纹连接或所述第一拉紧螺钉通过第一螺母与所述挡板的位置固定；
    所述第二锁紧装置至少包括第二拉紧螺钉，所述第二拉紧螺钉的一端与所述滑轮座接触，另一端限定在所述挡板上，所述第二拉紧螺钉与所述直孔螺纹连接，或所述第二拉紧螺钉通过第二螺母与所述挡板的位置固定。
  15. 根据权利要求14所述的一种治疗设备，其特征在于，所述第一锁紧装置和/或所述第二锁紧装置还包括防护螺母，所述防护螺母在所述挡板的另一侧与所述第一拉紧螺钉和/或所述第二拉紧螺钉连接。
  16. 根据权利要求1所述的一种治疗设备，其特征在于，所述运动平板上设有盖板，所述探测器设置在所述运动平板与所述盖板之间，所述盖板上设有通孔以将所述探测器露出，以便接收射线。
  17. 根据权利要求1所述的一种治疗设备，其特征在于，所述探测器通过一运动机构安装在所述运动平板上，可沿所述滚筒的径向运动。
  18. 根据权利要求1所述的一种治疗设备，其特征在于，所述探测器通过一驱动机构安装在所述运动平板上，可沿所述滚筒的轴向运动。
  19. 根据权利要求1所述的一种治疗设备，其特征在于，所述探测器和滑动驱动单元设置在所述滚筒的内侧；
    所述滑动导轨为弧形，所述滑动导轨的圆心与所述滚筒的圆心重合。
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