WO2015070776A1 - 一种放射性医疗设备 - Google Patents

一种放射性医疗设备 Download PDF

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Publication number
WO2015070776A1
WO2015070776A1 PCT/CN2014/091001 CN2014091001W WO2015070776A1 WO 2015070776 A1 WO2015070776 A1 WO 2015070776A1 CN 2014091001 W CN2014091001 W CN 2014091001W WO 2015070776 A1 WO2015070776 A1 WO 2015070776A1
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WO
WIPO (PCT)
Prior art keywords
imaging
medical device
rotor
stator
cylindrical body
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PCT/CN2014/091001
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English (en)
French (fr)
Inventor
刘剑
张剑
绍跃林
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上海联影医疗科技有限公司
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Application filed by 上海联影医疗科技有限公司 filed Critical 上海联影医疗科技有限公司
Priority to CN201480062459.2A priority Critical patent/CN105764421A/zh
Priority to US15/036,799 priority patent/US10463882B2/en
Publication of WO2015070776A1 publication Critical patent/WO2015070776A1/zh
Priority to US16/658,009 priority patent/US11484732B2/en

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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
    • A61N5/1048—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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A61B6/035—Mechanical aspects of CT
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/40—Arrangements for generating radiation specially adapted for radiation diagnosis
    • 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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/447—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being mounted to counterpoise or springs
    • 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
    • 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
    • A61N2005/1063—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam maintaining the position when the patient is moved from an imaging to a therapy system
    • 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
    • A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
    • A61N2005/1089—Electrons

Definitions

  • the present application relates to the field of machinery, and in particular to a radiological medical device.
  • Radiation Therapy uses radiation, such as alpha, beta, gamma rays produced by radioisotopes and x-rays, electron beams, proton beams, and other particles generated by various x-ray treatment instruments to bombard diseased tissues of the human body.
  • radiation such as alpha, beta, gamma rays produced by radioisotopes and x-rays, electron beams, proton beams, and other particles generated by various x-ray treatment instruments to bombard diseased tissues of the human body.
  • radiotherapy is widely used in the field of cancer treatment.
  • the Linear Accelerator System is a commonly used particle accelerator device for radiation therapy.
  • the medical linear accelerator includes a treatment head in which a radiation source is disposed to emit radiation to the diseased tissue.
  • the treatment head in addition to a series of components such as an accelerating tube, an electron gun, a moving target, a magnetic deflection system, a collimator, and a leveling device, the treatment head also includes a high-density lead shielding layer for blocking the use of the linear accelerator.
  • the extra radiation emitted by the radioactive source is harmful to human radiation.
  • the treatment head has a greater mass. Therefore, the medical linear accelerator is further provided with a weight to balance the overturning moment generated by the weight of the treatment head. Therefore, the existing medical linear accelerator has a large volume. This causes great troubles in the installation, transportation, commissioning and maintenance of the medical linear accelerator.
  • the patient needs to first complete the pathological tissue positioning by the CT machine, and then move to the medical linear accelerator for radiotherapy of the diseased tissue.
  • the medical linear accelerator and the CT machine have larger volumes, and the patient's movement range is larger. Greater than The process is cumbersome and easy to cause positioning errors.
  • the problem solved by the present application is to provide a radiological medical device to reduce the cumbersomeness of the treatment procedure in the process of radiotherapy, thereby improving the efficiency of the treatment procedure, reducing the location of the diseased tissue, and the positioning error of the radiotherapy of the diseased tissue.
  • a radioactive medical device provided by the technical solution of the present application includes:
  • the radiation assembly includes a treatment head for emitting radiation, the treatment head rotating about the first axial direction;
  • the CT machine assembly includes a ray tube and a detector; the ray tube and the detector are disposed opposite to each other, respectively located on two sides of the first axial direction, and the ray tube and the detector are wound around the first axial direction Rotate.
  • the main body bracket includes a cylindrical body with a first axial center as a central axis, and the cylindrical body is open at both ends;
  • the treatment head is fixed at one end of the cylindrical body
  • the CT machine assembly is located at the other end of the cylinder.
  • the tube and detector of the CT machine assembly are fixed to the inner wall of the cylinder.
  • the CT machine assembly includes a CT stator fixed to the cylindrical body, and a CT rotor mounted on the CT stator, the CT rotor rotating about a first axis, the shot A conduit and a detector are mounted on the CT rotor.
  • the CT stator is fixed to the inner wall of the cylinder and includes a mounting hole opened along the first axial direction, and the CT rotor is mounted on the CT stator through a bearing.
  • the main body bracket includes a bed plate that moves along the first axial direction and moves through the two ends of the cylindrical body;
  • a through hole is defined in the first axial direction of the CT rotor, and the ray tube and the detector are located at two sides of the through hole, and the bed plate moves through the through hole.
  • the CT stator further includes a CT driving mechanism that drives the rotation of the rotor;
  • the CT driving mechanism includes a first motor, a first driving wheel connected to the first motor, and the CT rotor and the first The first drive belt of the drive wheel.
  • the main body bracket includes a base for placing the cylindrical body, and the base is provided with a drum driving mechanism that drives the rotation of the cylindrical body.
  • the drum drive mechanism includes a second motor, a second drive wheel coupled to the second motor, and a second drive belt wrapped around the second drive wheel and the surface of the cylinder.
  • the drum drive mechanism further includes a guide wheel disposed on the base.
  • a radiological medical device comprising:
  • a body bracket rotatable about its axis
  • a treatment head coupled to the body stent, the treatment head for emitting radiation
  • An imaging assembly defining an imaging via and forming an image of an object located within the imaging via, the imaging assembly being coupled to the body mount and rotating as the body mount rotates.
  • the body bracket includes a cylindrical body that is disposed substantially coaxially with the imaging through hole.
  • the radiological medical device further includes a rotor mounted with the imaging assembly, the rotor being coupled to the body bracket and rotating as the body bracket rotates.
  • the rotor defines an imaging through hole
  • the body support comprising a cylindrical body, the cylindrical body being disposed substantially coaxially with the imaging through hole.
  • the radioactive medical device further includes:
  • An imaging device stator coupled to the main body bracket and rotated as the main body bracket rotates
  • the rotor is rotatable by the bearing independently of the imaging device stator and the body bracket.
  • the imaging assembly is rotatable about the imaging through hole independently of rotation of the body support.
  • the imaging assembly is located inside the body bracket.
  • the imaging assembly is at least partially located inside the body mount.
  • a radiological medical device comprising:
  • a body bracket rotatable about its axis
  • a treatment head coupled to the body stent, the treatment head for emitting radiation
  • An imaging device stator the imaging device stator being coupled to the main body bracket and rotating as the main body bracket rotates;
  • a rotor defining an imaging through hole and mounted with an imaging assembly that forms an image of an object located within the imaging through hole;
  • the rotor is rotatable independently of the imaging device stator and the body bracket.
  • the rotor does not rotate as the body bracket rotates.
  • the connector comprises a bearing.
  • the body bracket includes a cylindrical body that is disposed substantially coaxially with the imaging through hole.
  • the imaging device stator and the rotor are at least partially located inside the body bracket.
  • the imaging device stator and the rotor are completely located inside the main body bracket.
  • a radiation assembly and an imaging device assembly are respectively disposed at two ends of the main body bracket of the radioactive medical device, so that the patient directly moves to the other end of the main body bracket after performing the image scanning and completing the lesion tissue positioning picture shooting.
  • Radiation therapy by radiation components thereby improving the efficiency of radiotherapy after the patient completes the location of the diseased tissue; in addition, it can effectively reduce the diseased tissue caused by excessive movement of the patient after the location of the diseased tissue to the radiotherapy treatment.
  • Positioning error; and a structure of a radiation assembly and an imaging device assembly are respectively disposed at both ends of the main body bracket, and the radioactive component and the imaging device component can be mutually balanced with each other to balance the quality based on the two. The resulting overturning moment effectively reduces the volume of medical equipment, thereby facilitating the installation, transportation, commissioning and maintenance of medical equipment.
  • the main body bracket includes a cylindrical body, the imaging device assembly and the radiation assembly are located at both ends of the cylindrical body; and the radioactive medical device further includes a bed plate that can open through both ends of the cylindrical body, thereby During radiotherapy, after completing the disease tissue localization procedure, the patient directly moves the bed plate and moves the patient to the radiation component for radiation therapy.
  • the above technical solution can prevent the patient from releasing the diseased tissue after positioning Physical activity during radiotherapy, thereby reducing the positioning error of the location of the diseased tissue caused by the patient's physical activity, and improving the accuracy of the subsequent radiotherapy.
  • the radiological medical device includes a stator fixed to the cylindrical body, and a rotor mounted on the stator, the rotor is rotated about a first axis, the ray tube and the detector (collectively referred to as an imaging assembly) ) mounted on the rotor.
  • the imaging device assembly is used to adjust the orientation of the lesion tissue of the ray tube and the detector by rotating the rotor; and during the use of the radiation assembly, the rotation of the cylinder is used to adjust the treatment head.
  • the orientation that is, the imaging assembly can be rotated independently of the radiation assembly, thereby reducing the probability of interaction between the radiation assembly and the imaging device assembly.
  • FIG. 1 is a schematic structural view of a radioactive medical device according to an embodiment of the present application.
  • FIG. 3 are schematic diagrams showing the use of the radioactive medical device according to an embodiment of the present application.
  • FIG. 4 is a schematic perspective view showing the inside of a radioactive medical device according to an embodiment of the present application.
  • Figure 5 is a side view showing the structure of the radioactive medical device of Figure 4.
  • Figure 6 is a perspective structural view of the CT machine assembly of Figure 1;
  • Figure 7 is a side elevational view of the CT machine assembly of Figure 6.
  • the existing radiotherapy requires imaging equipment such as a CT machine to first locate the patient's diseased tissue, and then move the patient to the medical linear accelerator and based on the diseased tissue acquired by the previous imaging device. Position the picture for radiation therapy. During the period, the patient first completes the location of the diseased tissue and then moves to the medical linear accelerator for radiotherapy. This process not only reduces the efficiency of the radiotherapy, but also moves the patient from the imaging device to the medical linear accelerator. Based on the patient's body movement, the diseased tissue may be There will be movement changes, which will cause errors in the localization of the diseased tissue and cause obstacles to radiation therapy.
  • the components have a large mass and the overturning moment is generated, and the radiotherapy apparatus is further provided with a weight to improve the balance of the radiation treatment apparatus. Therefore, it is difficult to install, transport, debug and repair the radiation medical equipment.
  • the present application provides a radiological medical device comprising an imaging component and a radiation component, which can be moved directly to the radiation component through the moving bed plate after the patient completes the imaging positioning during the radiotherapy treatment. Perform radiotherapy.
  • a radiological medical device comprising an imaging component and a radiation component, which can be moved directly to the radiation component through the moving bed plate after the patient completes the imaging positioning during the radiotherapy treatment.
  • Perform radiotherapy Thereby reducing the probability of the positioning error of the diseased tissue based on the activity amount of the patient's body during the radiation therapy process, and improving the treatment efficiency.
  • the imaging assembly and the radiation assembly can be mutually counterpart weight components, thereby reducing the overall volume and weight of the radiological medical device, and reducing the difficulty in installation, transportation, commissioning, and maintenance of the radiological medical device.
  • 1 to 7 are schematic structural views of different forms of a radioactive medical device according to an embodiment of the present application.
  • a main body bracket and a radiation assembly 30 and a CT machine assembly 20 mounted on the main body bracket are included.
  • the main body bracket includes a cylindrical body 10 having a central axis of the cylindrical body 10 as a first axial direction, and the radiation assembly 30 and the CT machine assembly 20 are respectively located at both ends of the central axis of the cylindrical body 10. .
  • the CT machine assembly 20 and the radiation assembly 30 are mutually counterpart weight assemblies to improve the overall balance of the radiological medical device.
  • the cylindrical body 10 has a structure in which both ends are open, and the radioactive medical device further includes a moving bed board 200.
  • the moving bed board 200 It moves axially along the central axis of the cylindrical body 10, and moves through the both ends of the cylindrical body 10 to open.
  • the patient 100 lies on the moving bed board 200, moves from the opening of the cylindrical body 10 to one end of the CT machine assembly 20, performs CT scan, and acquires a lesion tissue positioning picture.
  • the moving bed board 200 is moved to the radiation assembly 30 while keeping the body of the patient 100 not moving, thereby performing radiation therapy based on the lesion tissue positioning picture acquired by the CT machine assembly 20. .
  • the radiation therapy assembly includes a treatment head for emitting radiation.
  • the treatment head includes a series of components such as an accelerating tube, an electron gun, a moving target, a magnetic deflection system, a collimator, a leveling device, and a shielding layer, and details are not described herein again.
  • the treatment head is axially rotatable about a central axis of the cylindrical body 10, and the radiation emitting direction of the treatment head is directed toward the inner side of the cylindrical body 10, and the treatment head can be wound around when the radiation treatment is adjusted
  • the patient rotates to adjust the illumination orientation of the radiation.
  • the treatment head is fixed to the cylindrical body 10.
  • the cylindrical body 10 is rotatable about its axial direction to drive the treatment head to rotate axially about the cylindrical body 10.
  • the radioactive medical device provided by the present embodiment further includes a base 40 for placing the cylindrical body 10, and the base 40 is provided with a mechanism for driving the cylindrical body 10 around A drum drive mechanism whose central axis rotates in the axial direction.
  • the drum driving mechanism includes: a second motor (not shown), a second driving wheel 60 connected to the second motor, and a packaged in the The second drive wheel 60 and the second drive belt 61 on the surface of the cylindrical body 10.
  • a belt groove 64 is disposed around the central axis thereof, and the second belt 61 is embedded in the belt groove 64.
  • a plurality of guide wheels 63 of the same size or different size are provided on the base 40, and the surfaces of the plurality of guide wheels 63 and the cylindrical body 10 are provided. Surface fitting, thereby reducing the frictional force that the cylindrical body 10 is subjected to when rotating, and improving the The rotational efficiency of the cylindrical body 10.
  • the CT machine assembly includes a ray tube and a detector; the ray tube and the detector are respectively located on two sides of the central axis of the cylindrical body 10, and the positions are oppositely disposed, as shown in connection with FIG. 2, While the patient 100 is performing a CT scan, the ray tube and detector (not shown in Figure 1) can be rotated about the patient 100 to adjust the angle of view of the tube and detector of the CT machine assembly.
  • the aforementioned tube and detector may be collectively referred to as an imaging assembly.
  • the radiological medical device further includes a rotor on which the imaging assembly is mounted, the rotor being coupled to the main body bracket and rotatable as the main body bracket rotates.
  • the rotor defines an imaging through hole that is disposed substantially coaxially with the cylinder 10.
  • the imaging assembly can be located wholly or at least partially within the interior of the body mount.
  • the CT machine assembly includes a CT stator 51 and a CT rotor 54.
  • the CT stator 51 is fixed to the inner wall of the cylindrical body 10 by a connecting plate 52, and therefore, the CT stator 51 can be rotated in accordance with the rotation of the cylindrical body 10.
  • the CT stator 51 includes a through hole 53 opened in the direction of the central axis of the cylindrical body 10.
  • the CT stator 51 is coupled to a rotor 54 by a coupling member, such as a bearing 23, which is rotatable by the bearing 23 independently of the CT stator 51 and the cylindrical body 10.
  • the CT rotor 54 is mounted on the CT stator 51, and the CT rotor 54 is provided with a through hole 55 coaxial with the through hole 53, which allows an image to be formed on an object located therein, and The through hole is substantially coaxially disposed with the cylindrical body 10.
  • the CT rotor 54 is movably coupled to the CT stator 51 via a bearing such that the CT rotor 54 is axially rotatable about a central axis of the cylinder 10.
  • the ray tube 74 and the detector 75 as imaging assemblies are mounted on the CT rotor 54, respectively, and are located on both sides of the through hole 55.
  • the ray tube 74 and the detector 75 as imaging members are rotatable about the through hole 55 independently of the rotation of the main body holder.
  • the CT stator 51 and the CT rotor 54 are completely disposed inside the main body bracket.
  • the CT stator 51 and the CT rotor 54 can also be partially disposed on the main body bracket. internal.
  • the moving bed board 200 can pass through the through holes 53 and 55 and feed the patient 100 between the tube 74 and the detector 75, which is driven by the CT rotor 54.
  • the ray tube 74 and detector 75, thereby adjusting the CT scan, the ray tube 74 and detector 75 are positioned at an angle relative to the patient.
  • the CT stator 51 of the radiological medical device includes a CT drive mechanism for driving the rotation of the CT rotor 54.
  • the CT drive mechanism includes a first motor 76 that is coupled to the CT rotor 54 and that drives the CT rotor 54 to rotate.
  • the CT drive mechanism can be directly fixed to the main body bracket, and these simple changes are all within the scope of the present application.
  • the CT drive mechanism may include a first drive wheel (not shown) fixedly coupled to the first motor 76, and a first drive belt for connecting the first drive wheel and the CT rotor 54. (not shown), the first drive belt connects the CT rotor 54 and the first drive wheel.
  • the first motor 76 drives the first drive wheel to rotate and the CT drive 54 is rotated by the first drive belt.
  • the imaging unit ray tube 74 and the detector 75 are rotatable about the imaging through hole 55 independently of the rotation of the main body holder.
  • the CT machine assembly 20 drives the CT rotor through a CT driving mechanism. 54 is rotated, and the CT tube 54 and the detector 75 are axially rotated about the central axis of the cylindrical body 10 by the CT rotor 54 to complete CT scan of different orientations of the patient 100, and obtain a lesion tissue positioning picture.
  • the treatment head of the radiation assembly 30 is driven by the drum driving mechanism to rotate the cylindrical body 10 about its central axis, so that the treatment head is rotated by the cylindrical body 10 about the central axis of the cylindrical body 10 to Complete radiation therapy for different orientations of the patient. That is, the CT machine assembly 20 and the radiation assembly 30 operate by two sets of drive mechanisms, thereby increasing the flexibility of use of the CT machine assembly 20 and the radiation assembly 30, and reducing the probability of interaction between the radiation assembly 30 and the CT machine assembly 20.
  • the tube and detector of the CT machine assembly can be directly attached to the inner wall of the cylindrical body 10. Thereby, the tube and the detector of the CT machine assembly are rotated by the cylindrical body 10 to rotate around the central axis of the cylindrical body 10, so that the ray tube and the detector rotate around the central axis of the cylindrical body 10, thereby Relative to suffering For CT image shooting positioning angle adjustment.
  • the imaging apparatus of the radiological medical apparatus is described by taking a CT imaging apparatus as an example, however, those skilled in the art should understand that other medical imaging apparatuses, for example, a magnetic resonance imaging system (MRI), positron emission tomography (PET), (PET-CT), single photon emission computed tomography (SPECT), etc., can also be applied to the disclosed technical solution, through the body stent and radiation therapy equipment
  • MRI magnetic resonance imaging system
  • PET positron emission tomography
  • PET-CT PET-CT
  • SPECT single photon emission computed tomography

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Abstract

一种放射性医疗设备，包括主体支架以及分别位于主体支架两端的放射线组件（30）和成像组件（20）。病人在做完成像扫描，完成病变组织定位图片拍摄后，直接移动到主体支架另一端，由放射线组件（30）进行放射线治疗，以提高病人在完成病变组织定位后，进行放射性治疗的效率，同时还可有效减少病人在由成像组件（20）完成病变组织定位后，移至放射性治疗期间所作的过多的运动，从而降低由此造成的病变组织定位误差。

Description

一种放射性医疗设备
本申请要求2013年11月14日提交中国专利局、申请号为201320718512.2、发明名称为“一种放射性医疗设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及机械领域，尤其是涉及一种放射性医疗设备。
背景技术
放射性治疗(Radiation Therapy)利用放射线，如放射性同位素产生的α、β、γ射线和各类x射线治疗仪器产生的x射线、电子线、质子束以及其他粒子轰击人体的病变组织的治疗方法。在现代医学治疗方法中，放射性治疗广泛应用于肿瘤治疗等领域。
如医用直线加速器(Linear Accelerator System)是一种常用的放射治疗的粒子加速器装置。医用直线加速器包括一个治疗头，所述治疗头内设置放射源，用以向病变组织发射放射线。
其中，在治疗头内除了设置有加速管、电子枪、移动靶、磁偏转系统、准直器、均整器等一系列部件外，还包括高密度的铅屏蔽层，用以阻挡已用直线加速器使用过程中，放射源放出的多余的放射线对于人体辐射伤害。因而治疗头具有较大的质量。因而医用直线加速器上还设有配重块，以平衡治疗头自重产生的倾覆力矩，因而，现有的医用直线加速器体积较大。这给医用直线加速器的安装、运输、调试以及维修造成较大麻烦。
此外，在放射性治疗时，除了用以产生放射线的医用直线加速器外，还需配合使用CT(Computed Tomography，计算机断层扫描)机等影像设备，用以确定人体病变组织的具体位置。
因而在放射性治疗过程中，病人需要先通过CT机先完成病变组织定位后，移至医用直线加速器进行针对病变组织放射性治疗，基于医用直线加速器和CT机均具有较大体积，病人的移动幅度较大，过 程繁琐，且容易造成定位误差。
为此，在放射性治疗过程中，如何降低治疗过程繁琐性，提高治疗程序效率，以及降低病变组织定位，和病变组织放射性治疗的定位误差是本领域人员亟需解决的问题。
发明内容
本申请解决的问题是，提供了一种放射性医疗设备，以降低放射性治疗过程中，治疗程序的繁琐性，从而提高治疗程序效率，并降低病变组织定位，和病变组织放射性治疗的定位误差。
为解决上述问题，本申请技术方案提供的一种放射性医疗设备，包括：
主体支架，以及沿第一轴向分别位于所述主体支架两端的放射线组件和CT机组件；
所述放射线组件包括用于发射放射线的治疗头，所述治疗头绕所述第一轴向旋转；
所述CT机组件包括射线管和探测器；所述射线管和探测器位置相对设置，分别位于所述第一轴向的两侧，且所述射线管和探测器绕所述第一轴向旋转。
可选地，所述主体支架包括以第一轴向为中心轴的圆筒体，所述圆筒体两端开口；
所述治疗头固定在所述圆筒体一端；
所述CT机组件位于所述圆筒体的另一端。
可选地，所述CT机组件的射线管和探测器固定于圆筒体的内壁。
可选地，所述CT机组件包括固定在所述圆筒体上的CT定子，以及安装在CT定子上的CT转子，所述CT转子绕第一轴向转动，所述射 线管和探测器安装在所述CT转子上。
可选地，所述CT定子固定在所述圆筒体内壁，且包括沿所述第一轴向开设的安装孔，所述CT转子通过轴承安装在所述CT定子上。
可选地，所述主体支架包括沿所述第一轴向移动，且移动贯穿所述圆筒体两端开口的床板；
所述CT转子上沿第一轴向开设有通孔，所述射线管和探测器位于所述通孔的两侧，所述床板移动贯穿所述通孔。
可选地，所述CT定子还包括驱动所述转子转动的CT驱动机构；所述CT驱动机构包括第一电机，与第一电机连接的第一驱动轮，以及连接所述CT转子和第一驱动轮的第一传动带。
可选地，所述主体支架包括用于放置所述圆筒体的基座，所述基座上设有驱动所述圆筒体转动的滚筒驱动机构。
可选地，所述滚筒驱动机构包括第二电机，与所述第二电机连接的第二驱动轮，以及包裹在所述第二驱动轮和所述圆筒体表面的第二传动带。
可选地，所述滚筒驱动机构还包括设置在所述基座上的导向轮。
根据本发明的其他实施例，还提供一种放射性医疗设备，包括：
主体支架，所述主体支架绕其轴心线是可转动的；
与所述主体支架连接的治疗头，所述治疗头用于发射放射线；
成像组件，所述成像组件限定成像通孔，并对位于所述成像通孔内的物体形成图像，所述成像组件与所述主体支架连接，并随着所述主体支架的转动而转动。
可选地，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔大体上共轴设置。
可选地，所述放射性医疗设备还包括安装有所述成像组件的转子，所述转子与所述主体支架连接，并随着所述主体支架的转动而转动。
可选地，所述转子限定成像通孔，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔基本上共轴设置。
可选地，所述放射性医疗设备还包括：
成像设备定子，所述成像设备定子与所述主体支架连接并随着所述主体支架的转动而转动；以及
与所述成像设备定子和所述转子连接的轴承；
其中，所述转子可以独立于所述成像设备定子和所述主体支架通过所述轴承转动。
可选地，所述成像组件可独立于所述主体支架的转动而绕着所述成像通孔转动。
可选地，所述成像组件位于所述主体支架的内部。
可选地，所述成像组件至少部分位于所述主体支架的内部。
根据本发明的其他实施例，还提供一种放射性医疗设备，包括：
主体支架，所述主体支架可以绕其轴心线旋转；
与所述主体支架连接的治疗头，所述治疗头用于发射放射线；
成像设备定子，所述成像设备定子与所述主体支架连接并随着所述主体支架的转动而转动；
转子，所述转子限定成像通孔并且安装有成像组件，所述成像组件对位于所述成像通孔内的物体形成图像；以及
连接件，用于将所述成像设备定子连接到所述转子，
其中，所述转子是独立于所述成像设备定子和所述主体支架而可转动的。
可选地，所述转子不随着所述主体支架的转动而转动。
可选地，所述连接件包括轴承。
可选地，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔大体上共轴设置。
可选地，所述成像设备定子与所述转子至少部分位于所述主体支架内部。
可选地，所述成像设备定子与所述转子完全位于所述主体支架的内部。
与现有技术相比，本申请的技术方案具有以下优点：
在所述放射性医疗设备的主体支架的两端分别设置放射线组件和成像设备组件，例如，CT机组件，从而病人在做完成像扫描，完成病变组织定位图片拍摄后，直接移动到主体支架另一端，由放射线组件进行放射线治疗，从而提高病人在完成病变组织定位后，进行放射性治疗的效率；此外还可有效降低基于病人在病变组织定位后至放射性治疗期间过多的运动，而造成的病变组织定位误差；而且在所述主体支架的两端分别设置放射线组件和成像设备组件的结构，所述放射性组件和成像设备组件可以互为对方的配重快，以平衡基于两者具有较大质量而造成的倾覆力矩，有效减小医疗设备的体积，从而便于医疗设备的安装、运输、调试以及维修。
进一步地，主体支架包括圆筒体，所述成像设备组件和放射线组件位于所述圆筒体的两端；且所述放射性医疗设备还包括可以贯穿所述圆筒体两端开口的床板，从而在进行放射线治疗时，病人在完成病变组织定位程序后，直接移动床板，将病人移至放射线组件处，进行放射线治疗。上述技术方案可以避免病人在完成病变组织定位后至放 射性治疗期间的身体活动，从而降低基于病人身体活动而造成的病变组织的定位分析定位误差，提高之后进行的放射线治疗的准确性。
进一步地，所述放射性医疗设备包括固定在所述圆筒体上的定子，以及安装在定子上的转子，所述转子绕第一轴向转动，所述射线管和探测器(统称为成像组件)安装在所述转子上。上述技术方案中，所述成像设备组件使用过程中，通过转动所述转子从而调整射线管和探测器的拍摄病变组织的方位；而放射线组件使用过程中，通过转动圆筒体以调整治疗头的方位，即，所述成像组件可以独立于放射线组件而转动，从而降低放射线组件和成像设备组件互相影响的概率。
附图说明
图1为本申请实施例提供的放射性医疗设备的结构示意图；
图2～图3为本申请实施例提供的放射性医疗设备使用时的示意图；
图4为本申请实施例提供的放射性医疗设备内部的立体结构示意图；
图5为图4中放射性医疗设备的侧面结构示意图；
图6为图1中CT机组件的立体结构图；
图7为图6中CT机组件的侧视图。
具体实施方式
正如背景技术中所述，现有的放射性治疗，需要用到CT机等影像设备，先对患者的病变组织定位，之后再将病人移至医用直线加速器上，并基于先前成像设备获取的病变组织定位的图片进行放射线治疗。期间，病人先完成病变组织定位，再移至医用直线加速器进行放射线治疗的过程不仅降低了放射性治疗的效率，而且病人由成像设备移动至医用直线加速器的过程中，基于病人身体运动，病变组织可能 会发生移动变化，从而造成先前的病变组织定位误差，给放射线治疗造成障碍。
此外基于如医用直线加速器等放射性治疗所用设备中，各部件具有较大的质量而产生的倾覆力矩，放射线治疗设备中还设置有配重块，以提高放射线治疗设备的平衡性。因而造成放射线医疗设备的安装、运输、调试以及维修难度高。
为此，本申请提供了一种放射性医疗设备，所述放射性医疗设备包括了成像组件和放射线组件，在放射性治疗过程中，在病人完成成像定位后，便可直接通过移动床板移至放射线组件处进行放射线治疗。从而降低放射线治疗过程中，基于病人身体的活动量，而造成病变组织定位误差的几率，同时提高治疗效率。此外，所述成像组件和放射线组件可以互为对方的配重组件，从而降低放射性医疗设备整体的体积和重量，降低放射性医疗设备的安装、运输、调试以及维修难度。
下面结合附图，成像组件以CT机组件为例，对本申请的技术方案进行清楚、完整的描述。
图1～图7是本申请实施例提供的放射性医疗设备不同形态的结构示意图。
参考图1所示，本实施例提供的放射性医疗设备。包括主体支架，以及安装在所述主体支架上的放射线组件30和CT机组件20。
具体地，所述主体支架包括圆筒体10，以所述圆筒体10的中心轴为第一轴向，所述放射线组件30和CT机组件20分别位于圆筒体10中心轴的两端。所述CT机组件20和放射线组件30互为对方的配重组件，提高所述放射性医疗设备整体平衡性。
结合参考图2和图3所示，本实施例中，所述圆筒体10为两端开口的结构，所述放射性医疗设备还包括移动床板200。所述移动床板200 沿圆筒体10的中心轴轴向移动，且移动贯穿所述圆筒体10两端开口。
在使用过程中，参考图2所示，患者100躺在所述移动床板200上，由所述圆筒体10的开口移至所述CT机组件20一端，进行CT扫描，获取病变组织定位图片；之后，参考图3所示，在保持患者100身体不移动的状态下，将所述移动床板200移至放射线组件30处，从而基于所述CT机组件20获取的病变组织定位图片进行放射线治疗。
继续参考图1～图3所示，本实施例中，所述放射线治疗组件包括治疗头，所述治疗头用于发射放射线。所述治疗头包括了加速管、电子枪、移动靶、磁偏转系统、准直器、均整器以及屏蔽层等一系列部件，在此不再赘述。
所述治疗头可绕着所述圆筒体10的中心轴轴向旋转，所述治疗头的射线发射方向朝向所述圆筒体10内侧，在调整放射线治疗时，所述治疗头可绕着患者旋转，从而调整辐射线的照射方位。
本实施例中，所述治疗头固定在所述圆筒体10上。所述圆筒体10可绕其轴向旋转，从而带动所述治疗头绕所述圆筒体10轴向旋转。
继续参考图1所示，本实施例提供的放射性医疗设备还包括用于放置所述圆筒体10的基座40，且在所述基座40上设置有用于驱动所述圆筒体10绕其中心轴轴向旋转的滚筒驱动机构。
具体地，结合参考图4和图5所示，所述滚筒驱动机构包括：第二电机(图中未显示)、与所述第二电机连接的第二驱动轮60，以及包裹在所述第二驱动轮60和圆筒体10表面的第二传动带61。其中，在所述圆筒体10的表面，绕其中心轴设置有传动带凹槽64，所述第二传动带61嵌于所述传动带凹槽64内。
进一步地，结合参考图4和图5所示，在所述基座40上，设有多个大小相同或不同的导向轮63，所述多个导向轮63表面与所述圆筒体10的表面贴合，从而减小所述圆筒体10转动时受到的摩擦力，提高所述 圆筒体10的转动效率。
本实施例中，所述CT机组件包括射线管和探测器；所述射线管和探测器分别位于所述圆筒体10的中心轴两侧，位置相对设置，如结合参考图2所示，在所述患者100在做CT扫描时，所述射线管和探测器(图1中未显示)可绕所述患者100旋转，从而调整CT机组件的射线管和探测器的拍摄角度。本领域技术人员容易理解，前述射线管和探测器可被统称为成像组件。进一步地，该放射性医疗设备还包括安装该成像组件的转子，该转子与主体支架连接并可以随着主体支架的转动而转动。该转子限定有成像通孔，该成像通孔与圆筒体10基本上共轴设置。成像组件可以全部地或至少部分位于该主体支架的内部。
具体地，结合参考图5、图6和图7所示，本实施例中，所述CT机组件包括CT定子51和CT转子54。所述CT定子51通过连接板52固定在所述圆筒体10的内壁，因此，所述CT定子51可以随着所述圆筒体10的转动而转动。所述CT定子51包括沿所述圆筒体10中心轴方向开设的通孔53。如图7所示，所述CT定子51通过连接件，例如轴承23，与转子54连接，所述转子54可以独立于所述CT定子51和所述圆筒体10通过所述轴承23转动。
所述CT转子54安装在所述CT定子51上，所述CT转子54上开设有与所述通孔53同轴的通孔55，该通孔55允许对位于其内的物体形成图像，并且该通孔与所述圆筒体10大体上共轴设置。所述CT转子54通过轴承与所述CT定子51活动连接，从而所述CT转子54可绕着所述圆筒体10的中心轴轴向旋转。
继续参考图6和图7所示，作为成像组件的射线管74和探测器75分别安装在CT转子54上，且位于通孔55两侧。作为成像组件的射线管74和探测器75可独立于主体支架的转动而绕着通孔55转动。如图1所示，该CT定子51和CT转子54被完全布置在主体支架的内部，然而，本领域技术人员可以容易理解，该CT定子51与CT转子54也可以被部分地设置在主体支架的内部。
结合参考图2和图3所示，所述移动床板200可穿过所述通孔53和55，并将患者100送至所述射线管74和探测器75之间，所述CT转子54带动所述射线管74和探测器75，从而调整CT扫描时，所述射线管74和探测器75相对于患者定位角度。
本实施例中，所述放射性医疗设备的CT定子51包括用于驱动所述CT转子54转动的CT驱动机构。所述CT驱动机构包括第一电机76，所述第一电机76与所述CT转子54连接，且驱动所述CT转子54转动。当然，所述CT驱动机构可直接固定在所述主体支架上，这些简单的改变均在本申请的保护范围内。
具体地，例如，CT驱动机构可包括一个与所述第一电机76固定连接的第一驱动轮(图中未显示)，以及用于连接所述第一驱动轮和CT转子54的第一传动带(图中未显示)，所述第一传动带连接所述CT转子54和第一驱动轮。使用过程中，所述第一电机76驱动所述第一驱动轮转动，并由所述第一传动带带动所述CT转子54转动。
本实施例中，作为成像组件射线管74和探测器75的可独立于主体支架的转动而绕着成像通孔55转动，具体地，所述CT机组件20通过CT驱动机构驱动所述CT转子54转动，并由所述CT转子54带动所述射线管74和探测器75绕所述圆筒体10的中心轴轴向转动，以完成对于患者100不同方位的CT扫描，获得病变组织定位图片；而所述放射线组件30的治疗头由滚筒驱动机构驱动所述圆筒体10绕其中心轴旋转，从而由所述圆筒体10带动所述治疗头绕圆筒体10中心轴旋转，以完成对于患者不同方位的放射线治疗。即，所述CT机组件20和放射线组件30通过两套驱动机构工作，从而提高CT机组件20和放射线组件30使用的灵活性，降低放射线组件30和CT机组件20互相影响的概率。
当然，除本实施例外的其他实施例中，所述CT机组件的射线管和探测器可直接固定在所述圆筒体10的内壁。从而由所述圆筒体10转动带动CT机组件的射线管和探测器绕圆筒体10的中心轴旋转，以实现所述射线管和探测器绕所述圆筒体10中心轴旋转，从而相对于患 者作CT图像拍摄定位角度调整。这些简单的改变均在本申请的保护范围内。
根据本发明的上述实施例，所述放射性医疗设备的成像设备是以CT成像设备为例进行说明的，然而，本领域技术人员应该了解的是，其他医学成像设备，例如，核磁共振成像系统(MRI)，正电子发射计算机断层扫描系统(PET)，(PET-CT)，单光子发射计算机断层成像系统(SPECT)等，也是可以应用到本发明公开的技术方案，通过主体支架与放射治疗设备整合，进而实现本发明的前述发明目的，在此不予赘述。
本申请虽然已以较佳实施例公开如上，但其并不是用来限定本申请技术方案，任何本领域技术人员在不脱离本申请技术方案的精神和范围内，都可以利用上述揭示的方法和技术内容对本申请技术方案做出可能的变动和修改，因此，凡是未脱离本申请技术方案的内容，依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化及修饰，均属于本申请技术方案的保护范围。

Claims (24)

  1. 一种放射性医疗设备，其特征在于，包括：
    主体支架，以及沿第一轴向分别位于所述主体支架两端的放射线组件和CT机组件；
    所述放射线组件包括用于发射放射线的治疗头，所述治疗头绕所述第一轴向旋转；
    所述CT机组件包括射线管和探测器；所述射线管和探测器位置相对设置，分别位于所述第一轴向的两侧，且所述射线管和探测器绕所述第一轴向旋转。
  2. 如权利要求1所述的放射性医疗设备，其特征在于，所述主体支架包括以第一轴向为中心轴的圆筒体，所述圆筒体两端开口；
    所述治疗头固定在所述圆筒体一端；
    所述CT机组件位于所述圆筒体的另一端。
  3. 如权利要求2所述的放射性医疗设备，其特征在于，所述CT机组件的射线管和探测器固定于圆筒体的内壁。
  4. 如权利要求2所述的放射性医疗设备，其特征在于，所述CT机组件包括固定在所述圆筒体上的CT定子，以及安装在CT定子上的CT转子，所述CT转子绕第一轴向转动，所述射线管和探测器安装在所述CT转子上。
  5. 如权利要求4所述的放射性医疗设备，其特征在于，所述CT定子固定在所述圆筒体内壁，且包括沿所述第一轴向开设的安装孔；所述CT转子通过轴承安装在所述CT定子上。
  6. 如权利要求4所述的放射性医疗设备，其特征在于，所述主体支架包括沿所述第一轴向移动，且移动贯穿所述圆筒体两端开口的床板；
    所述CT转子上沿第一轴向开设有通孔，所述射线管和探测器位于所述通孔的两侧，所述床板移动贯穿所述通孔。
  7. 如权利要求4所述的放射性医疗设备，其特征在于，所述CT定子还包括驱动所述CT转子转动的CT驱动机构；所述CT驱动机构包括第一电机，与第一电机连接的第一驱动轮，以及连接所述CT转子和第一驱动轮的第一传动带。
  8. 如权利要求2所述的放射性医疗设备，其特征在于，所述主体支架包括用于放置所述圆筒体的基座，所述基座上设有驱动所述圆筒体转动的滚筒驱动机构。
  9. 如权利要求8所述的放射性医疗设备，其特征在于，所述滚筒驱动机构包括第二电机，与所述第二电机连接的第二驱动轮，以及包裹在所述第二驱动轮和所述圆筒体表面的第二传动带。
  10. 如权利要求9所述的放射性医疗设备，其特征在于，所述滚筒驱动机构还包括设置在所述基座上的导向轮。
  11. 一种放射性医疗设备，其特征在于，包括：
    主体支架，所述主体支架绕其轴心线是可转动的；
    与所述主体支架连接的治疗头，所述治疗头用于发射放射线；
    成像组件，所述成像组件限定成像通孔，并对位于所述成像通孔内的物体形成图像，所述成像组件与所述主体支架连接，并随着所述主体支架的转动而转动。
  12. 如权利要求11所述的放射性医疗设备，其特征在于，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔大体上共轴设置。
  13. 如权利要求11所述的放射性医疗设备，其特征在于，还包括安装有所述成像组件的转子，所述转子与所述主体支架连接，并随着所述主体支架的转动而转动。
  14. 如权利要求13所述的放射性医疗设备，其特征在于，所述转子限定成像通孔，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔基本上共轴设置。
  15. 如权利要求13所述的放射性医疗设备，其特征在于，还包括：
    成像设备定子，所述成像设备定子与所述主体支架连接并随着所述主体支架的转动而转动；以及
    与所述成像设备定子和所述转子连接的轴承；
    其中，所述转子独立于所述成像设备定子和所述主体支架通过所述轴承是可转动的。
  16. 如权利要求11所述的放射性医疗设备，其特征在于，所述成像组件可独立于所述主体支架的转动而绕着所述成像通孔转动。
  17. 如权利要求11所述的放射性医疗设备，其特征在于，所述成像组件位于所述主体支架的内部。
  18. 如权利要求11所述的放射性医疗设备，其特征在于，所述成像组件至少部分位于所述主体支架的内部。
  19. 一种放射性医疗设备，其特征在于，包括：
    主体支架，所述主体支架绕其轴心线是可转动的；
    与所述主体支架连接的治疗头，所述治疗头用于发射放射线；
    成像设备定子，所述成像设备定子与所述主体支架连接并随着所述主体支架的转动而转动；
    转子，所述转子限定成像通孔并且安装有成像组件，所述成像组件对位于所述成像通孔内的物体形成图像；以及
    连接件，用于将所述成像设备定子连接到所述转子，
    其中，所述转子是独立于所述成像设备定子和所述主体支架而可 转动的。
  20. 如权利要求19所述的放射性医疗设备，其特征在于，所述转子不随着所述主体支架的转动而转动。
  21. 如权利要求19所述的放射性医疗设备，其特征在于，所述连接件包括轴承。
  22. 如权利要求19所述的放射性医疗设备，其特征在于，所述主体支架包括圆筒体，所述圆筒体与所述成像通孔大体上共轴设置。
  23. 如权利要求19所述的放射性医疗设备，其特征在于，所述成像设备定子与所述转子至少部分位于所述主体支架内部。
  24. 如权利要求19所述的放射性医疗设备，其特征在于，所述成像设备定子与所述转子完全位于所述主体支架的内部。
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