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WO2018145317A1 - Dispositif de radiothérapie - Google Patents

Dispositif de radiothérapie Download PDF

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Publication number
WO2018145317A1
WO2018145317A1 PCT/CN2017/073384 CN2017073384W WO2018145317A1 WO 2018145317 A1 WO2018145317 A1 WO 2018145317A1 CN 2017073384 W CN2017073384 W CN 2017073384W WO 2018145317 A1 WO2018145317 A1 WO 2018145317A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiation therapy
therapy apparatus
cantilever
treatment head
treatment
Prior art date
Application number
PCT/CN2017/073384
Other languages
English (en)
Chinese (zh)
Inventor
刘海峰
肖世群
杨勇强
Original Assignee
西安大医数码技术有限公司
武汉数码刀医疗有限公司
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, 武汉数码刀医疗有限公司 filed Critical 西安大医数码技术有限公司
Priority to CN202111545012.9A priority Critical patent/CN114306957B/zh
Priority to PCT/CN2017/073384 priority patent/WO2018145317A1/fr
Priority to CN201780085168.9A priority patent/CN110234396B/zh
Publication of WO2018145317A1 publication Critical patent/WO2018145317A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy

Definitions

  • the present invention relates to the field of medical device technology, and in particular, to a radiation therapy device.
  • Tumor is a common and frequently-occurring disease, and radiation therapy is a common treatment for cancer.
  • the existing radiotherapy apparatus includes a frame 1, a cantilever 2 (C-arm), a treatment head 3, and a treatment bed 4, wherein the treatment head 3 is capable of emitting a radiation beam, and the frame 1 is fixedly disposed on the ground.
  • the cantilever 2 is connected to the frame 1, and the cantilever 2 can drive the treatment head 3 to rotate circumferentially along the axis of rotation 11.
  • the intersection of the center of the radiation beam and the axis of rotation 11 is "isocenter 12"
  • the patient is located on the treatment bed 4, and the tumor is positioned corresponding to the isocenter 12 to effect radiation therapy of the tumor.
  • the radiation treatment device has different degrees of sagging of the treatment head during use, thereby causing unintentional deviation of the isocenter 12, as shown in the figure.
  • the offset distance is d.
  • the isocenter is shifted in the other direction, that is, the error precision is doubled.
  • the radiation beam from the treatment of the hair not only does not irradiate the tumor, but also does not provide a therapeutic effect, and the radiation beam from the treatment of the hair irradiates the normal tissues or organs of the human body to generate additional radiation, and may cause secondary tumors. .
  • the invention provides a radiation therapy device, which supports a cantilever by a support frame, and the support frame can rotate together with the cantilever under the driving of the cantilever, thereby solving the sagging of the treatment head The problem of isocenter offset.
  • the present invention provides a radiotherapy apparatus comprising: a frame, a cantilever, and a treatment head, wherein the cantilever includes a connection end and a free end, and the connection end of the cantilever is connected to the frame, the cantilever is free The end is coupled to the treatment head; further comprising a support device disposed between the free end and the connection end of the cantilever and coupled to the cantilever and/or the treatment head.
  • the cantilever can drive the treatment head to rotate along a rotation axis
  • the support device includes: a support frame and a rotating body, the support frame is fixedly disposed with respect to the frame, the rotating body is coupled to the cantilever arm and/or the treatment head, and the rotating body is opposite to the The support frame rotates along the axis of rotation.
  • the present invention provides a radiotherapy apparatus comprising: a gantry, a cantilever, and a treatment head, wherein the cantilever includes a connection end and a free end, the connection end of the cantilever is coupled to the frame, and the free end of the cantilever is coupled to the treatment head.
  • the radiotherapy apparatus of the present application further includes a supporting device disposed between the free end of the cantilever and the connecting end and connected to the cantilever and/or the treatment head, the supporting device capable of bearing the weight of the treatment head, thereby preventing the radiation therapy device from being
  • the problem of sagging causing an equidistant offset during use ensures the accuracy of the device and ensures the therapeutic effect.
  • Figure 1 is a schematic view of a conventional radiotherapy apparatus
  • FIG. 2 is a schematic view showing a drooping treatment head of a conventional radiotherapy apparatus
  • Figure 3 is a schematic view of a radiation therapy apparatus provided by the present invention.
  • FIG. 4 is a schematic view of another radiation therapy device provided by the present invention.
  • Figure 5 is a schematic view of another radiation therapy device provided by the present invention.
  • FIG. 6 is a schematic structural view of a radiotherapy apparatus provided by the present invention.
  • Figure 7 is a schematic view of another radiation therapy device provided by the present invention.
  • Figure 8 is a schematic view of another radiation therapy device provided by the present invention.
  • Figure 9 is a schematic illustration of another radiation therapy device provided by the present invention.
  • the present application provides a radiation therapy apparatus, as exemplarily, as shown in FIG. 3, comprising: a frame 1, a cantilever 2, and a treatment head 3, wherein the cantilever 2 includes a connection end 21 and a free end 22, and the connection end of the cantilever 2 22 is connected to the frame 1 and the free end 21 of the cantilever 2 is connected to the treatment head 3.
  • the radiation therapy apparatus further comprises a support device 5 disposed between the free end 21 of the cantilever 3 and the connecting end 22 and connected to the cantilever 2 and/or the treatment head 3.
  • the cantilever 2 directly protrudes from the frame 1 as an example.
  • the cantilever 2 can also be an "L" shaped arm.
  • the cantilever 2 and the frame 1 can be fixedly connected by a connecting device 6.
  • the cantilever 2 can also be a "C"-shaped arm or the like.
  • the specific structure and shape of the cantilever are not limited in this application, and only the example shown in FIG. 3 will be described in detail.
  • the support device 5 is connected to the cantilever 2 and/or the treatment head 3, and the support device 5 may be connected to the cantilever 2, or the support device 5 may be connected to the treatment head 3, or the support device 5 and the cantilever 2 may be It is connected to the treatment head 3.
  • the supporting device 5 can further provide the supporting force of the cantilever 3, thereby preventing the treatment head 3 from sagging to avoid
  • the problem of isocenter offset ensures the accuracy of the device and ensures the therapeutic effect.
  • the force arm of the treatment head 3 to the support device 5 is the first force arm L1
  • the force arm of the treatment head 3 to the connection end 22 is the second force arm L2
  • the support device 5 is disposed on the cantilever
  • the first force arm L1 is smaller than the second force arm L2.
  • the treatment head 3 has a small force on the cantilever 2, thereby preventing treatment.
  • the head drooping avoids the problem of isocenter shift, ensuring the accuracy of the device and ensuring the therapeutic effect.
  • the support device 5 can directly support the treatment head to prevent the treatment head 3 from sagging. At this time, the force arm of the treatment head 3 to the support device 5 can be close to the first force arm L1. Zero.
  • the present invention provides a radiotherapy apparatus comprising: a frame, a cantilever, and a treatment head, wherein the cantilever includes a connection end and a free end, the connection end of the cantilever is coupled to the frame, and the free end of the cantilever is coupled to the treatment head.
  • the radiotherapy apparatus of the present application further includes a supporting device disposed between the free end of the cantilever and the connecting end and connected to the cantilever and/or the treatment head, the supporting device capable of bearing the weight of the treatment head, thereby preventing the radiation therapy device from being
  • the problem of sagging causing an equidistant offset during use ensures the accuracy of the device and ensures the therapeutic effect.
  • the treatment head may be an accelerator, a treatment head formed by a radioisotope (for example, cobalt-60), or a proton treatment head, etc., and the treatment head is not specifically limited in the present application.
  • the radiotherapy apparatus provided by the present application may include one or more treatment heads (for example, two or three, etc.), and the drawings of the present application are described in detail by taking a radiotherapy apparatus including a treatment head as an example.
  • the radiotherapy apparatus of the present application may also include other components and the like. The present application does not specifically describe and limit other components, and only the components related to the present invention are described.
  • the radiotherapy apparatus provided by the present application further includes a treatment bed 4, and the support device 5 includes an opening 51 through which the treatment bed 4 can be moved.
  • the bed frame 42 supports the bed plate 41, and can be driven to move the bed plate 41, and the treatment bed 4 moves through the opening 51.
  • the bed board 41 is moved in the direction of 101 so as to pass through the opening 51.
  • the cantilever 2 can drive the treatment head 3 to rotate along the rotation axis 11;
  • the support device 5 includes: a support frame 53 and a rotating body 52, and the support frame 53 is fixedly disposed with respect to the frame 1
  • the rotating body 52 is coupled to the cantilever 2 and/or the treatment head 3, and the rotating body 52 is rotatable relative to the support frame 53 along the axis of rotation 11.
  • the cantilever can drive the treatment head to rotate along the rotation axis. As shown in FIG. 1 , the cantilever 2 drives the treatment head 3 to rotate about the rotation axis 11 , specifically, the radial rotation of the treatment head 3 around the human body, thereby radiating the beam. Different areas of the human body are irradiated on the tumor to avoid concentrated exposure to damage local skin and organs.
  • the rotating body 52 is connected to the cantilever 2 and/or the treatment head 3, and the rotating body 52 may be connected to the cantilever 2, or the rotating body 52 may be connected to the treatment head 3, and the rotating body 52 and the cantilever 2 and the treatment head 3 may be connection.
  • the supporting device 5 comprises: a support frame 53 and a rotating body 52, the rotating body 52 is rotatable relative to the support frame 53 along the rotation axis 11, and the rotating body 52 is connected with the cantilever 2 and/or the treatment head 3, thereby being in the cantilever 2
  • the rotating body 52 can rotate synchronously with the cantilever 2, thereby supporting the treatment head during the rotation, preventing the treatment head 3 from sagging to avoid the problem of the isocenter offset, ensuring the accuracy of the device and ensuring treatment effect.
  • the support frame may include a large opening
  • the rotating body may include a small opening, so that the treatment bed can move through the opening of the rotating body.
  • the structure of the supporting device is not specifically limited in the present application, and only the above is taken as an example.
  • the radiation therapy device provided by the present application the manner in which the support frame and the rotating body are connected, and the rotation of the rotating body relative to the support frame along the axis of rotation can be implemented in a number of different ways.
  • the support frame and the rotating body are rotated by a rolling bearing connection. It is also possible to drive the rotation by the gear ring gear, or to realize the rotation by the pulley, etc., which is not specifically limited in the present application, and is merely exemplified by the above.
  • the supporting device 5 includes: a support frame 53 and a rotation The rotary body 52, the radiation therapy apparatus further includes a drive shaft 7, which drives the cantilever 2 to rotate along the rotational axis 11, and the rotary body 52 is coupled to the drive shaft 7.
  • the rotating body is connected to the driving shaft, the driving shaft can directly drive the rotating body to rotate, and the rotating body is connected with the driving shaft, so that the rotation axis of the rotating body and the rotation axis of the cantilever can be more easily realized, simplifying Installation method, avoid using other structures or equipment for coaxial confirmation.
  • the present invention provides a rotating body structure including a first flange, a second flange, and a connecting member connecting the first flange and the second flange; wherein the first flange is coupled to the boom and/or The treatment head is connected and the second flange is connected to the drive shaft.
  • the first flange is coupled to the cantilever or treatment head, and the first flange may be provided with an opening to enable the treatment couch to reciprocate through the opening.
  • the size of the first flange and the second flange may be different, for example, the diameter of the first flange is larger than the diameter of the second flange, etc., and the structure of the rotating body is not specifically limited in this application. Only the above is taken as an example.
  • the supporting device is fixedly connected to the frame. Since the supporting device is a fixing device, the frame is a fixing device, and the fixing device is fixedly connected with the frame to further improve the fixing of the supporting device and the frame.
  • the radiotherapy apparatus further includes a base; the frame is coupled to the base; and the support device is coupled to the base to enable the support device to be fixedly coupled to the frame.
  • the support device can be fixed to the ground, and the frame can also be fixed to the ground.
  • the method for fixing the connection between the supporting device and the frame is not limited in the present application, and the above description is only taken as an example.
  • the present invention provides a radiotherapy apparatus, the radiotherapy apparatus further comprising at least one set of imaging devices, the imaging device comprising oppositely disposed bulbs and detectors, the beam emitted by the bulb passing through the patient being receivable by the detector.
  • the radiotherapy apparatus includes two sets of image devices, which include a first bulb 24a and a first detector 25a, and a second device including a second bulb 24b and a second probe. The device 25b, wherein the beams of the two sets of image devices intersect.
  • the image device is fixed on the support frame.
  • the image device may be fixed on the frame or on the ceiling and the ground.
  • the image device can also be rotated, for example, the image device is fixed on the rotating body, thereby rotating the image device by the rotating body.
  • the installation position of the treatment head and the imaging device can be set as needed to prevent The treatment beam from the treated hair interferes with the beam of the imaging device.
  • a radiotherapy apparatus provided by the present application further includes a receiving plate 31 disposed opposite the treatment head 3.
  • the receiving plate can receive the beam of the treatment head so that the beam of the treatment head can be dose verified or precision verified.
  • the receiving plate may also be an image of the tumor area formed according to the received beam to position the patient or track during the treatment.
  • the specific role of the receiving plate in the present application is not limited.
  • the receiving plate is rotatable so as to always face the treatment head during the rotation of the treatment head, and receive the beam from the treatment hair.
  • the receiving plate may be fixed to the rotating body to drive the rotation by the rotation of the rotating body.
  • the method for fixing and rotating the receiving plate is not specifically limited in the present application, and the above description will be made by way of example only.
  • the radiation therapy apparatus further includes a shield 13 disposed opposite the treatment head 3.
  • the radiation beam emitted by the treatment head 3 is absorbed by the shield 13 after passing through the human body.
  • the risk of radiation leakage can be avoided.
  • the treatment room is generally modified to make the wall of the treatment room thicker.
  • the shielding body is provided on the opposite side of the treatment head to absorb excess radiation, and the radiation treatment device shields the treatment room. The requirements for protection are greatly reduced, which greatly saves the cost of construction or renovation of the treatment room.
  • the shield receiving plate is rotatable about the axis of rotation such that, with the treatment head rotated, the shield is always positioned opposite the treatment head to receive the beam from the treated hair.
  • the shielding body is fixedly coupled to the rotating body, and is rotated by the rotating body.
  • the shielding body can also be rotated by a separate device or device.
  • the rotation mode of the present application is not specifically limited, and only the above is exemplified.
  • a radiation therapy apparatus provided by the present application in the case where the radiation therapy apparatus further includes a receiving plate 31 and a shield 13, the shield 13 is located behind the receiving plate 31. That is, after the radiation beam emitted from the treatment head 3 passes through the human body, after being received by the receiving plate 31, the beam passing through the receiving plate 31 is received by the shield 13.
  • the shielding body may be specifically formed of a material having a shielding effect, for example, It is lead or tungsten or tungsten alloy.
  • the radiotherapy apparatus provided by the present application further includes a laser device including a laser emitter 23a and a laser receiver 23b.
  • a laser device including a laser emitter 23a and a laser receiver 23b.
  • the laser emitter 23a and the laser receiver 23b are oppositely disposed on the support frame.
  • the specific structure and arrangement of the laser device are not specifically limited in the present application, and only the illustration is taken as an example for illustration.
  • the radiation therapy apparatus further includes a treatment bed 4 and a protective plate 8, respectively, the treatment bed 4 and the treatment head 3 are respectively located at two sides of the protection plate 8, and the protection plate 8 is provided with an opening so that The treatment couch 4 can enter the other side of the shield 8 along the opening of the shield 8.
  • the treatment bed 4 can be moved in the direction of 101 so as to pass through the protective plate 8 and enter the side of the protective plate 8 having the treatment head 3 for feeding the patient for treatment. .
  • the protective plate can isolate the radiotherapy equipment, avoiding the patient panic, and is beneficial to improve the patient's treatment effect.
  • the protective sheet may also be formed of a shielding material (for example, lead, tungsten or an alloy thereof, etc.) so that the treatment space of the treatment room can be separated, that is, the side of the protective sheet having the treatment head is treated. Space, when the patient is being treated, the patient is placed in the treatment space through the treatment bed for treatment. Due to the isolation of the shield, it is possible to reduce the radiation on the side of the guard bed, so that leakage or extra radiation is avoided without treatment or when medical personnel enter.
  • a shielding material for example, lead, tungsten or an alloy thereof, etc.
  • the radiation therapy apparatus further includes an imaging device, a receiving plate or a laser device, it may be located on the side of the protective plate having the treatment head.
  • the radiation therapy apparatus further includes a drum 9 located on a side of the shield 8 having the treatment head 3, one end of the drum 9 communicating with the opening of the shield 8, and the treatment bed 4 being at the drum 9
  • the inside reciprocates along the axial direction of the drum 9.
  • the roller can further isolate the patient from the radiation therapy device, and the treatment space formed by the roller can alleviate the patient's nervousness.
  • the axis of the drum is coaxial with the axis of rotation.
  • the other end of the drum is coupled to the frame or support.
  • the other end of the drum is connected to the frame as an example for illustration.
  • the drum can also Therefore, it is connected to the support device, and specifically may be connected to the rotating body, or may be connected to the support frame.
  • the axis of the drum is coaxial with the axis of rotation, and the drum is rotatable about the axis of rotation. That is, when the cantilever drives the treatment head to rotate, the roller can also rotate synchronously or asynchronously with the treatment head. And connecting the drum to the rotating body, the drum can also be rotated by the rotating body.
  • the drum is connected to the frame, and it is also possible that the drum is connected to the drive shaft to drive the drum to rotate by the drive shaft.
  • the drum can also be rotated by an independent rotating mechanism.
  • the specific rotation mode of the drum is not limited in the present application, and the above description is only taken as an example.
  • the treatment head may be inserted into the drum or may be located outside the drum, and the drum is generally formed of a non-shielding material such as plastic, even if the treatment head is located outside the drum due to the penetration of the radiation. Does not affect the treatment of patients.
  • 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.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

La présente invention concerne un dispositif de radiothérapie qui se rapporte au domaine technique des instruments médicaux et résout le problème de décalage de l'isocentre provoqué par la chute d'une tête de traitement dans un dispositif de radiothérapie existant. Un dispositif de radiothérapie, comprenant un cadre, un bras de suspension et une tête de traitement; le bras de suspension comprend une extrémité reliée et une extrémité libre, l'extrémité reliée du bras de suspension étant reliée au cadre et l'extrémité libre du bras de suspension étant reliée à la tête de traitement; le dispositif de radiothérapie comprend aussi un dispositif de support qui est disposé entre l'extrémité libre et l'extrémité reliée du bras de suspension et qui est relié au bras de suspension et/ou à la tête de traitement.
PCT/CN2017/073384 2017-02-13 2017-02-13 Dispositif de radiothérapie WO2018145317A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202111545012.9A CN114306957B (zh) 2017-02-13 2017-02-13 一种放射治疗设备
PCT/CN2017/073384 WO2018145317A1 (fr) 2017-02-13 2017-02-13 Dispositif de radiothérapie
CN201780085168.9A CN110234396B (zh) 2017-02-13 2017-02-13 一种放射治疗设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/073384 WO2018145317A1 (fr) 2017-02-13 2017-02-13 Dispositif de radiothérapie

Publications (1)

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WO2018145317A1 true WO2018145317A1 (fr) 2018-08-16

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CN (2) CN114306957B (fr)
WO (1) WO2018145317A1 (fr)

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CN113144427A (zh) * 2021-04-23 2021-07-23 北京元气工场科技有限公司 养生设备、场源物质及养生方法
CN113457024A (zh) * 2021-05-26 2021-10-01 申惠波 一种可显示图案或文字的放射治疗设备

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CN112807569A (zh) * 2021-03-04 2021-05-18 中核安科锐(天津)医疗科技有限责任公司 射线防护装置及方法、放射治疗系统

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CN113457024B (zh) * 2021-05-26 2023-02-07 樊刚 一种可显示图案或文字的放射治疗设备

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CN114306957B (zh) 2024-09-10
CN110234396B (zh) 2022-02-08
CN110234396A (zh) 2019-09-13
CN114306957A (zh) 2022-04-12

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