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CN102698374A - Image-guided radiation treatment equipment - Google Patents

Image-guided radiation treatment equipment Download PDF

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CN102698374A
CN102698374A CN 201210171633 CN201210171633A CN102698374A CN 102698374 A CN102698374 A CN 102698374A CN 201210171633 CN201210171633 CN 201210171633 CN 201210171633 A CN201210171633 A CN 201210171633A CN 102698374 A CN102698374 A CN 102698374A
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body
treatment
roller
equipment
image
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CN 201210171633
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Chinese (zh)
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CN102698374B (en )
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陈纳新
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深圳市奥沃医学新技术发展有限公司
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Abstract

The invention provides image-guided radiation treatment equipment. The image-guided radiation therapy equipment comprises an installation base, a treatment couch which is fixedly arranged on the installation base and a treatment equipment main body, wherein the treatment equipment main body comprises a shield body roller, a source body roller and a collimation body roller component which are coaxially sleeved together and can rotate relative to one another, wherein the source body roller is provided with a detachable radioactive source component; the collimation body roller component is provided with a collimator; rays emitted from the radioactive source component emit into the treatment equipment main body after the beam limiting of the collimator; the treatment equipment main body surrounds the whole circumference of the treatment couch at 360 degrees; an image guide device is fixedly arranged on the source body roller and can rotate along with the source body roller, so that the image tracking of a patient in a 360-degree range and the real-time monitoring in a treatment process are realized, and a target spot follows up; and therefore, the aim of image-guided precise radioactive treatment is fulfilled.

Description

—种图像引导放射治疗设备 - the kind of image guided radiation therapy equipment

技术领域 FIELD

[0001] 本发明涉及一种医疗器械中的放射治疗设备,尤其涉及一种图像引导放射治疗设备。 [0001] The present invention relates to an apparatus for radiation therapy in a medical instrument, particularly to an image-guided radiation therapy device.

背景技术 Background technique

[0002]目前以伽玛射线为放射源的治疗设备一般都是利用将伽玛射线在患者靶点处进行聚焦照射来达到保护正常组织,杀死病灶的目的。 [0002] In current devices for the treatment of gamma-ray radiation source will generally using gamma rays focus at the target site is irradiated to a patient to protect normal tissue, the lesion killing purposes. 随着放疗技术的不断进步,射线聚焦的方式已从静态聚焦的方式发展到了旋转聚焦技术。 With the advances in radiotherapy techniques, the radiation from the static focus unfocused manner to the way of the development of the rotary focusing technique. 旋转聚焦技术就是让伽玛射线围绕患者的靶点不断进行旋转运动,以此提高焦皮比,降低正常组织所受到的平均照射剂量。 Turn the focus is to make the gamma-ray technology constantly rotating motion around the target patient's skin in order to raise coke ratio, reducing the average radiation dose received by normal tissue. 旋转聚焦的方式一般有两种:一种是射线沿通过患者靶点的某一根中轴进行自转,另一种就是射线沿通过患者靶点的某一根中轴进行公转。 Rotating unfocused manner there are two: one is the radiation along an axis for rotation of the patient through a target, while another is performed along rays through a revolving axis of a patient target.

[0003] 现有的放射治疗设备,参见图I所示,采用多个放射单元按照不同的经纬度分布在同一个半球体或球冠体上,参见图2所示,其半球体或球冠体围绕其自身的中轴线a进行旋转运动,由于此时各个放射单元自身的轴线会在球心处交汇至一点,因此形成了锥形体射线束,交汇点就是旋转聚焦点,也就是进行治疗时候病灶的放置点。 [0003] The conventional radiation therapy device, see Figure I below, a plurality of radiation units distributed in different latitude and longitude on the same hemisphere or spherical cap body, see Figure which hemisphere or spherical cap 2 about its own axis in a rotational movement, because at this time the respective radiation units own axis will converge to a point at the center of the sphere, thereby forming a cone beam, the intersection point is the focal point of rotation, i.e. when the lesions treated the placement point. 此类放射治疗设备由于仅仅采用围绕自身轴线自转的方式且放射源纬度大多布置得较低,使得其很难有多余的空间实施即时的图像引导治疗。 Such radiation therapy device since only by way of rotation about its axis and a radiation source arranged mostly low latitudes, so that it is difficult to have the extra space instant embodiment of image guided therapy. 在另一些现有的放射治疗设备中,采用射线束围绕靶点进行公转的方式来进行治疗,但是在实践中由于机械结构的限制以及敏感组织的保护要求,其公转角度往往达不到360度的整圈旋转,而只能是采用一定角度下的小范围弧形聚焦照射,因此对于需要进行360度整周扫描才能进行成像的图像引导治疗方式来说实现起来也是相当地困难。 In other conventional radiotherapy device using radiation beam revolving manner around a target for treatment, but in practice, due to limitations and protection requirements of the mechanical structure of the sensitive tissue, which often fail revolution angle of 360 degrees the full rotation, but only a small range with curved focused illumination at a certain angle, so the need for scanning the entire circumference of 360 degrees can be imaged image guided treatment is also quite difficult to achieve.

发明内容 SUMMARY

[0004] 本发明的目的在于提供一种图像引导放射治疗设备,通过设置所述治疗设备主体上的同轴套设在一起且相互之间能旋转的屏蔽体滚筒、固设有放射源组件及图像引导装置的源体滚筒、准直体滚筒组件,将治疗床360度整周包围,解决了射线不能在图像实时引导的情况下围绕靶点进行360度范围内精确照射治疗的问题。 [0004] The object of the present invention is to provide an image guided radiation therapy device, by providing the treatment apparatus body coaxially sleeved on the shield body together and mutually rotatable drum, the radiation source with the solid components and image source body drum guide device, collimator drum assembly, the couch 360 surrounds the entire circumference, can not solve the problem of accurate ray irradiation treatment in the range of 360 degrees around the target in a case where the image of the real-time guidance.

[0005] 本发明是这样实现的,一种图像引导放射治疗设备,包括一安装底座,以及固定安装于所述安装底座上的治疗床及治疗设备主体;所述治疗设备主体包括一屏蔽体滚筒,还包括套设于所述屏蔽体滚筒内的一源体滚筒,以及套设于所述源体滚筒内的一准直体滚筒组件,所述源体滚筒与所述准直体滚筒组件均与屏蔽体滚筒同轴,所述屏蔽体滚筒固定安装于所述安装底座上,所述源体滚筒由源体滚筒电机驱动可绕其中心轴360度旋转,所述准直体滚筒组件由准直体滚筒电机驱动可绕其中心轴360度旋转;所述治疗设备主体还包括一能提供射线的放射源组件,所述放射源组件可拆卸地安装于所述源体滚筒上,可随源体滚筒旋转而旋转,所述准直体滚筒组件包括一准直器,所述放射源组件放射出的射线经过所述准直器的限束后射向所述治疗设备主体内;所述 [0005] The present invention is implemented, an image guided radiation therapy apparatus, comprising a mounting base, and is fixedly mounted to the mounting device body and treatment couch on the base; said treatment apparatus comprises a shield cylinder body further comprising a sleeve disposed source drums within the shield cylinder body, and a quasi sleeved source within the drum assembly drums straight body, said source body and the collimator cylinder drum assembly are cylinder coaxial with the shield, the shield cylinder fixedly mounted to the mounting base, the source body drum driven by the drum motor source body can be rotated 360 degrees about its central axis, the collimator assembly by the registration roller straight motor-driven drums rotate 360 ​​degrees about its central axis; said treatment apparatus further comprises a body radiation source assembly providing radiation, the radiation source assembly detachably mounted on the drum body source, the source may vary rotation of the drum body is rotated, the collimator assembly comprises a collimator drum, the radiation source assembly rays emitted through the rear limit toward the beam collimator of the therapeutic apparatus main body; the 治疗设备主体还包括一固定安装于所述源体滚筒上的图像引导装置,可随所述源体滚筒旋转而旋转;所述治疗床沿所述屏蔽体滚筒的轴线方向穿过所述治疗设备主体内,并被所述治疗设备主体360度整周包围。 Treatment apparatus main body further comprises an image guide means fixedly mounted on said cylinder body source, the source may vary with rotation of the drum body is rotated; the treatment of the bed in the axial direction of the drum body through the treatment apparatus of the shield body inside, and the treatment device 360 ​​to surround the entire circumference of the body.

[0006] 所述源体滚筒的内壁上开设有第一图像引导装置安装通孔及第二图像引导装置安装通孔,所述第一图像引导装置安装通孔及第二图像引导装置安装通孔呈180度相向设置,所述第一图像引导装置安装通孔与所述第二图像引导装置安装通孔之间的连线穿过所述治疗床。 [0006] The source material on the inner wall of the drum defines a first through-hole image guide mounting means mounting the guide image and the second through-hole means, said first image guide mounting means and the second through-hole mounting through hole image guide device disposed 180 degrees opposite, the connection between the first image through hole guide mounting means mounting the second image through the guide through hole couch.

[0007] 所述准直体滚筒组件在径向上留有两开口端,所述第一图像引导装置安装通孔与所述第二图像引导装置安装通孔之间的连线穿过所述准直体滚筒组件的两开口端。 [0007] The collimator assembly leaving two open ends of the roller in the radial direction, the connection between the first mounting through hole guide image and the second image through the guide means mounting said through-hole registration the open ends of the straight body of the drum assembly.

[0008] 所述源体滚筒的壁体上还开设有用来放置放射源组件的放射源安装通孔,所述第一图像引导装置安装通孔及第二图像引导装置安装通孔与所述放射源组件之间夹角均为90度。 [0008] The source of the body wall of the drum is also provided with a radiation source used to place the radiation source assembly mounting through hole, the first mounting through hole image guide means guiding means and the second image with the radiation through hole mounting angle is 90 degrees between the source assembly.

[0009] 所述图像引导装置包括发射端和接收端,所述发射端安装于所述第一图像引导装置安装通孔内,所述接收端安装于所述第二图像引导装置安装通孔内。 [0009] The guide means comprises an image transmitting and receiving ends, the transmitting end is attached to the first mounting through hole of image-directing device, mounted on the receiving end of the image guide means mounting the second through hole .

[0010] 所述第一图像引导装置安装通孔为圆形,所述第二图像引导装置安装通孔为长方形。 [0010] The image guide means mounting said first through hole is circular, the second mounting through hole image guide means is rectangular.

[0011] 所述屏蔽体滚筒在径向方向上开设有装源孔用于换装新源和日常维修,所述装源孔为相向对称设置的两个通孔,分别位于所述屏蔽体滚筒的水平两端,所述治疗设备主体还包括两个装源孔堵块,分别与所述屏蔽体滚筒上的装源孔配合安装。 [0011] The shield defines a cylinder bore source means for routine maintenance and installation of new sources in a radial direction, said source means facing holes of two through holes symmetrically disposed, respectively, in said shield cylinder level ends, said body further comprising two treatment device installed blockout source aperture respectively mounted with the mounting holes on the source of the drum body shield.

[0012] 所述图像引导装置为DR数字X线成像系统。 [0012] The guide device is a DR image digital X-ray imaging system.

[0013] 所述图像引导装置为CBCT锥形束CT成像系统。 [0013] The CBCT image guidance means is a cone-beam CT imaging system.

[0014] 所述放射源组件提供的射线为伽玛射线。 [0014] The radiation source assembly provided for the gamma rays.

[0015] 采用本发明实施例提供的图像引导放射治疗设备的有益效果为:通过在源体滚筒上设置能提供射线的放射源组件与图像引导装置,并带动放射源组件及图像引导装置围绕治疗床360度整周旋转,实现了对患者360度范围内的影像跟踪及在治疗过程中的实时监测、靶点随动,从而达到了图像引导下精确放射治疗的目的。 [0015] The embodiment provides an advantageous effect of an image-guided radiotherapy apparatus of the present invention is: by the source disposed at the body cylinder assembly can provide the radiation source and the radiation image-directing device, and drive the radiation source assembly and the guide means around an image treatment bed 360 degree rotation of the entire circumference, the video track to achieve the range of 360 and real-time monitoring of the patient during treatment, the servo target, so as to achieve the purpose of accurate radiation therapy under image guidance.

附图说明 BRIEF DESCRIPTION

[0016] 图I是本发明的现有技术中放射治疗装置示意图; [0016] FIG. I is a schematic view of the prior art radiotherapy apparatus of the present invention;

[0017] 图2是本发明的现有技术放射治疗装置的射线示意图; [0017] FIG. 2 is a schematic diagram of the prior art ray radiotherapy apparatus of the present invention;

[0018] 图3是本发明的放射治疗设备结构示意图; [0018] FIG. 3 is a schematic view of the structure of the radiotherapy apparatus of the present invention;

[0019] 图4是本发明放射治疗设备结构正面剖视图; [0019] FIG. 4 is a radiotherapy apparatus of the present invention is a front sectional view of the structure;

[0020] 图5是本发明放射治疗设备结构侧面剖视图; [0020] FIG. 5 is a radiotherapy apparatus of the present invention, a side sectional view of the structure;

[0021] 图6是本发明放射源组件与模拟源组件及其驱动装置结构示意图; [0021] FIG. 6 is a schematic diagram of the present invention means radiation source assembly and a driving assembly with an analog source;

[0022] 图7是本发明准直体滚筒组件结构示意图; [0022] FIG. 7 is a schematic view of the roller assembly of the present invention, the structure of the collimator;

[0023] 图8是本发明屏蔽体滚筒结构示意图; [0023] FIG. 8 is a schematic view of the drum structure of the shield of the present invention;

[0024] 图9是本发明源体滚筒与准直体滚筒组件结构示意图; [0024] FIG. 9 is a source of the present invention and a schematic view of the drum body collimator drum assembly configuration;

具体实施方式 detailed description

[0025] 为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。 [0025] To make the objectives, technical solutions and advantages of the present invention will become more apparent hereinafter in conjunction with the accompanying drawings and embodiments of the present invention will be further described in detail. 应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。 It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention.

[0026] 图3是本发明的放射治疗设备结构示意图,包括一安装底座3,以及固定安装于安装底座3上的治疗床2及治疗设备主体I。 [0026] FIG. 3 is a schematic view of the radiation therapy device structure of the present invention, comprises a mounting base 3, and the couch and the treatment apparatus body 2 on the base 3 fixedly mounted to the mounting I.

[0027] 参见图4及图5所示,治疗设备主体I包括均为圆柱筒形状的屏蔽体滚筒11、源体滚筒12以及准直体滚筒组件13,屏蔽体滚筒11固定安装于安装底座3上,源体滚筒12通过第一轴承15套设于屏蔽体滚筒11内,准直体滚筒组件通过第二轴承16套设于源体滚筒12内,该屏蔽体滚筒11、源体滚筒12与准直体滚筒组件13共一旋转中心轴,源体滚筒12及准直体滚筒组件13分别可由源体滚筒电机(图未示)及准直体滚筒电机(图未示)驱动分别绕其中心轴360度旋转;治疗设备主体I还包括一能提供射线的放射源组件14,该射线可为伽玛射线,该放射源组件14可拆卸的安装于源体滚筒12上,可随源体滚筒12旋转而旋转,准直体滚筒组件13包括一与放射源组件14放射出的射线相配合使用的准直器131 ;该治疗床2沿屏蔽体滚筒11的中心轴线方向布置,穿过治疗设备主体I内,并被治疗设备 [0027] Referring to FIGS. 4 and 5, comprises a treatment device main body I are cylindrical tubular shape shield body drum 11, the drum body 12 and the source collimator roller assembly 13, shield 11 fixedly mounted to the cylinder mounting base 3 , the source body drum 12 by a first bearing sleeve 15 disposed within the shield body drum 11, the collimator assembly drum 16 via a second bearing sleeve disposed in the source body drum 12, the shield of the drum 11, the drum body 12 and the source collimator drum assembly 13 of a central axis of rotation, the source body of the drum 12 and the collimator carrier drum assembly 13 can be formed from the source body of the drum motor (not shown) and the collimator carrier drum motor (not shown) respectively driven about its center 360 degree rotation shaft; body treatment apparatus I further includes a radiation source assembly 14 to provide radiation, the radiation can be gamma rays, the radiation source assembly 14 is removably mounted to the drum body 12 on the source, with the source body may be a drum 12 is rotated to rotate the collimator the collimator assembly 13 comprises a roller assembly 14 and the radiation source emits radiation compatible with the use of 131; the treatment bed 2 along the central axis direction of the roller shield 11 is disposed, through the treatment device the body I, and treatment device 主体360度整周包围,当源体滚筒12旋转时带动放射源组件14旋转,放射源组件14放射出的射线经过准直器131的限束后射向治疗设备主体I内治疗床2上的患者,可对病灶进行360度范围内任意旋转拉弧照射。 360 surrounds the entire circumference of the body, the radiation source assembly 14 to drive the rotary source body when the rotating drum 12, radiation source assembly 14 emitted through the collimator beam limiting post 131 is directed to the treatment apparatus body therapeutically bed the I 2 patient, the lesion can be any rotating arc illumination range of 360 degrees.

[0028] 为了提高焦皮比及使射野内的剂量场尽可能均匀分布,可设置机构使射线束围绕自身分布的中心轴进行旋转,参见图4及图6所示,本实施例的放射源组件设有一具有旋转中心轴的射源体141,该射源体141上开设有多个供放射源安装的放置孔以及射线出孔,放射源安装于放置孔内,放射出的射线通过射线出孔均整后形成同向均匀分布的射线束射出,该放射源组件还包括一端与射源体141固定连接的射源体轴142,其位于射源体141的旋转中心轴上,其另一端固定连接一放射源齿轮143 ;治疗设备主体I上还设有一放射源驱动装置17,包括一放射源齿环171以及一具有输出齿轮172的放射源驱动电机(图未不),该放射源齿环171通过滑块(图未示)安装于屏蔽体滚筒11内壁的导向槽内,并可围绕其旋转中心同轴转动,放射源齿环171同时与放射源驱动电机的输出齿轮172 [0028] In order to improve the power ratio and makes transdermal dose distribution within the radiation field uniformly distributed as possible, means may be provided so that the beam is rotated around the central axis of the profile itself, as indicated on FIG. 4 and FIG. 6, the present embodiment the radiation source radiation source assembly is provided with a body 141 having a central axis of rotation, defines a plurality of holes for placement of a radioactive source and a ray mounting hole, placing the radiation source is attached to the hole, the rays emitted by the radiation source on the ray 141 after forming the hole reeling emitted beam with the uniform distribution, the radiation source assembly further comprises a radiation source with the radiation source end of the shaft member 141 is fixedly connected to 142, which is located on the central axis of rotation of the radiation source 141, which is fixed to the other end radiation source 143 is connected to a gear; body treatment apparatus I is provided with a further drive means 17 radiation source, the radiation source comprising a radiation source ring gear 171 and output gear 172 of the driving motor (not not), the radiation source having a toothed ring 171 through a slider (not shown) attached to the inner wall of the guide groove 11 of the shield cylinder, and is rotated about its center of rotation coaxial with the output gear 171 while the radiation source and the radiation source ring gear of the driving motor 172 放射源齿轮143啮合,进一步的,放射源齿环171的两端面均设有卡齿,其一端面的卡齿与放射源齿轮143啮合,另一端面的卡齿与放射源驱动电机的输出齿轮172啮合;当放射源驱动电机带动输出齿轮172转动时,带动放射源齿环171转动,再进一步通过带动放射源齿轮143转动而使射源体141绕其自身旋转中心轴旋转,从而实现了射线束围绕其自身分布的中心轴旋转。 Radiation source gear 143 meshes, further, both end faces of the radiation source are provided with the toothed ring 171 latches, latch 143 engages with the one end surface of the radiation source gear, the output gear and the other end face of the latch driving motor radioactive sources engagement 172; when the radiation source to drive the driving motor rotates the output gear 172, ring gear 171 rotates to drive the radiation source, the radiation source is rotated further 143 141 rotation about its own central axis driven by the radiation source gear, thereby achieving ray beam rotation about the central axis of its own profile.

[0029] 进一步的,参见图6所示,本实施例的射源体141由套设在一起的同中心轴的安装座1411及预准直器1412组成,该放射源放置孔位于安装座1411上,该射线出孔位于预准直器1412上,放射源放置孔与射线出孔对应设置可导通,安装座1411与预准直器1412之间可沿其中心轴相互转动,该射源体轴142由同中心轴且套设在一起的轴套1421及转轴1422组成,该放射源齿轮143由安装座齿轮1431及预准直器齿轮1432组成,该转轴1422插在轴套1421中可相互转动,且其一端固定连接预准直器1412,另一端固定连接预准直器齿轮1432,该轴套1421 —端固定连接安装座1411,另一端固定连接安装座齿轮1431 ;放射源齿环171包括同中心轴且套设在一起的第一齿环1711及第二齿环1712,其分别由不同的放射源驱动电机驱动,可绕其中心轴相互之间转动,第一齿环1711与安装座齿轮1431啮合,第二齿环17 [0029] Further, as shown in Figure 6, 1412 with the central axis of the mount consisting of the radiation source 141 of this embodiment is provided with a sleeve 1411 and the pre-collimator, the radiation source is located in the mount hole 1411 is placed on the pre-positioned on the ray collimator aperture 1412, and the ray radiation source placed in the hole corresponding to the hole may be turned on is provided, mutually rotatable along its central axis between 1411 and 1412 mount pre-collimator, the radiation source shaft 1421 and the sleeve member 1422 by the same shaft 142 and the central axis of the sleeve provided with the composition, the radiation source 143 by a gear mount gears 1431 and 1432 pre-collimator composed of gears, the spindle 1422 may be inserted into the sleeve 1421 each rotation, and having one end fixedly connected to the pre-collimator 1412, the fixed and the other end connected to a pre-collimator gear 1432, the hub 1421-- end fixedly connected to the mount 1411, and the other end fixedly connected to the gear mount 1431; Radioactive Sources toothed ring 171 includes a first toothed ring and with the central axis of the sleeve is provided with a second toothed ring 1712 and 1711, which are driven by different drive motors radioactive source, rotatable about its central axis to each other, a first ring gear 1711 with mount gear 1431 engages a second toothed ring 17 12与预准直器齿轮1432啮合;当电机驱动第一、二齿环1711、1712同步转动时,带动安装座1411与预准直器1412同步转动,即实现射源体141及其放射出的射线绕其中心轴的自转,当电机异步驱动第一、二齿环1711、1712时,其分别带动安装座1411与预准直器1412异步转动,此时,放射源放置孔与射线出孔错位形成不导通,放射源放置孔一端被封堵,射线无法射出,于是实现了对放射源组件14的射线开关的控制。 The collimator 12 and the pre-engagement of gear 1432; when the motor drives the first and second synchronous rotation toothed ring 171 1, 1712, and 1411 to drive the pre-mount the collimator 1412 synchronous rotation, i.e. to achieve radiation source 141 and radiated rays rotation about its central axis, when the asynchronous motor driving the first and second toothed ring 171 1, 1712, the mount 1411 respectively driven by the pre-collimator 1412 asynchronous rotation, this time, the ray radiation source placed off-center bore hole and forming non-conductive, the radiation source is placed at one end hole is blocked, can not emit radiation, thus realizing the control of the radiation source assembly ray switch 14.

[0030] 参见图4及图6所示,射源体141为圆锥体,源体滚筒12的壁体上开设有圆锥型通孔,圆锥型通孔的中心轴线位于源体滚筒12的径向上并与源体滚筒12的旋转中心轴垂直,该圆锥型通孔的直径由源体滚筒12的外侧面向内侧面逐渐减小,以使得射源体141通过相适配的轴承或滑轨(图未示)安装于该源体滚筒上的圆锥型通孔内时不至于向内滑脱,射源体141与该圆锥型通孔的内壁之间环设有锥形轴承(图未示)或滑轨机构(图未示)来支撑射源体141绕其自身中心轴旋转;由于放射源组件的这种整体嵌入式安装,当需要更换射源时,可将放射源组件整体取出换源,减少逐个单元换源的风险。 [0030] Referring to FIG., The cone of radiation source 141, defines a conical through hole, the central axis of the conical through-holes located on the wall of the drum body 12 of the source 4 and 6, the drum body 12 radially from the source and the source of the drum body 12 perpendicular to the central axis of rotation, the diameter of the tapered through-hole gradually decreases from the outside of the drum 12 within the source body facing side, so that the radiation source 141 by a slide bearing or adapted (FIG. not shown) is attached to the tapered through hole on the source body inwardly drum will not slip, radiation source 141 between the inner wall of the conical through hole is provided with a conical bearing ring (not shown) or a slide rail mechanism (not shown) to support the radiation source 141 is rotated about its own central axis; due to this radiation source assembly integrally embedded installation, needs to be replaced when the radiation source, the radiation source may be a source transducer assembly taken overall, reducing by-unit exchange risk sources. [0031] 参见图4所示,源体滚筒12的内壁上开设有圆形的第一图像引导装置安装通孔121及长方形的第二图像引导装置安装通孔122,该第一、第二图像引导装置安装通孔121、122和放射源组件14共面且沿源体滚筒的径向呈180度相向设置,此外它们且与该放射源组件14之间的夹角均为90度。 [0031] Referring to FIG., The source body 12 defines the inner wall of the drum 4 with a circular first image directing device 121 and the mounting through hole rectangular guide means mounting the second image through hole 122, the first, second image guide means mounting holes 121, 122 through the radiation source assembly 14 and coplanar and disposed radially opposed 180 degrees along the source body of the drum, and in addition they are 90 degrees and the angle between the radiation source assembly 14. 本实施例的图像引导装置包括发射端和接收端,发射端安装于第一图像引导装置安装通孔内,接收端安装于所述第二图像引导装置安装通孔内,进一步的,本实施例的图像引导装置可为DR数字X线成像系统,更进一步的可为CBCT锥形束CT成像系统。 Image-directing device according to the present embodiment includes a transmitting end and a receiving end, the transmitting end attached to the first mounting through hole of image-directing device, mounted on the receiving end of the second mounting through hole of image-directing device, further, the present embodiment the image directing device may be a DR digital X-ray imaging system may further cone-beam CT imaging system is a CBCT.

[0032] 进一步的,参见图4及图6所示,本实施例的治疗设备主体I还设置有一模拟源组件14a,该模拟源组件14a具有与放射源组件14相同的结构和安装形式,其同样设有模拟射源体、模拟射源体轴及模拟放射源齿轮,其与放射源组件14之间呈180度相向对称的安装于源体滚筒12上的圆锥型通孔内,不同的是,放射源组件14的射源体的放置孔中安装的是放射源,而模拟源组件14a中设置的是光源,比如激光灯,旋转源体滚筒12,将放射源组件14和模拟源组件14a位置对调,可通过(激光)灯光野实现射线路径和焦点的可视化、治疗过程的直观模拟,此外采用灯光野也能满足初步的射野验证和相关的核物理实验验证需求。 [0032] Further, as indicated on FIG. 4 and FIG. 6, the treatment apparatus body I of this embodiment is also provided with an analog source assembly 14a, the analog source assembly 14a has the same configuration and mounting form of the radiation source assembly 14, which Similarly radiation source is provided with an analog thereof, the analog simulation radiation source the radiation source and the body gear shaft, 180 degrees opposed symmetrical installation tapered through hole on the cylinder body 12 between the source 14 and the radiation source assembly which, except that placing radiation source the radiation source assembly body 14 is mounted holes on the radiation source, while the analog source assembly 14a is provided in a light source, such as laser light, the rotary source body drum 12, radiation source assembly 14 and an analog source assembly 14a swap positions, may be (laser) light field and the ray paths achieved by the focus visual, intuitive treatment simulation, the light field can be employed in addition to meet the preliminary authentication portal and nuclear physics experiments related needs.

[0033] 参见图7所示,本实施例的准直体滚筒13为圆柱筒状,可绕其中心轴旋转,其包括一弧形准直器131,可随准直体滚筒13旋转而旋转,该准直器可为弧形多叶光栅或者圆形野准直器;弧形多叶光栅可由多对叶片和多组微电机组成,其叶片的纵截面对于大射野的设计需求来说可以呈弧形分布,排列成扇形或球冠状,对于小射野的设计需求也可以呈直线分布,排列成平面状,调整弧形多叶光栅各叶片的行程以形成不同形状的射野,可达到适形调强的功能,而配合每个叶片的运动速度还可以实现动态调强;弧形多叶光栅也可以更换成圆形野准直器,其上开设有不同大小的圆锥孔以形成不同尺寸的圆形野,通过旋转准直体滚筒13可选择适合尺寸的圆形野。 [0033] Referring to FIG. 7, the collimator body according to the present embodiment the drum 13 has a cylindrical tubular shape, is rotatable about its central axis, comprising an arcuate collimator 131, with the can roller 13 is rotated to rotate the collimator the collimator may be a circular arc or MLC field collimator; MLC may be arcuate plurality of blades and a plurality of sets consisting of micro-motor, which is a longitudinal section of the blade for large portal design requirements for curved profile can be arranged in a spherical cap or a segment, for a small portal design requirements may be distributed linearly arranged in a planar, arcuate MLC adjusting the stroke of each blade to form different shapes of the radiation field can be intensity modulated to achieve the function, but with the speed of movement of each blade may also be implemented dynamically modulated intensity; arcuate MLC may be replaced with a circular field of the collimator, which defines the tapered bore of different sizes to form a circular field of different sizes, by the rotation of the drum 13 selectively collimator circular field of suitable size. 准直体滚筒13上还固设有与该准直器131相向设置的配重块132,使得准直体滚筒13质量分布均匀,能在转动时保持平稳,同时,也可在治疗状态时将其预先运行至放射源组件下方,将需保护敏感组织的放射角度进行遮挡;该配重块132设有一平台,该平台的平面朝向准直器131,可在将配重块132旋转至下方后,将该平台作为核物理测试的平台,通过在平台上作各种标识及工装,能方便的进行核物理测试,如放置三维水箱,校验等中心位置等。 When the collimator body fixing drum 13 is also provided with weights 131 to the collimator 132 disposed facing, cylinder 13 so that the collimator mass distribution can be maintained stable during the rotation, at the same time, also in the treatment state after the weight is provided with a platform block 132, the plane of the platform toward the collimator 131 may be rotated to the counterweight block 132 downward; its downward run pre-assembly radiation source, the radiation angle of the need to protect sensitive tissues were blocked , the platform as nuclear physics test platform, for a variety of identification and tooling on the platform, can easily nuclear physics tests, such as the three-dimensional position of the center of the tank is placed, checking the like. 准直体滚筒组件13在径向上形成的两开口端133、134,为图像引导装置留出影像采集空间,该两开口端133、134位于准直器131及配重块132之间,分别与准直器131呈90度分布,第一、二图像引导装置安装通孔121、122之间的连线穿过该准直体滚筒组件的两开口端133、134,以便图像引导装置对位于放射治疗设备主体内的病灶进行实时监控引导。 Two open ends 13 formed in the radial direction collimator drum assembly 133, 134, leaving the image guide image capturing space, the open ends 133, 134 located between the collimator 132 and the counterweight 131, respectively the collimator 131 were at 90 degrees, the first, the connection between the two images 121 and 122 mounted through holes through the guide means of the open ends of the collimator carrier drum assembly 133, 134, so that the image guide means located radially lesions within the treatment apparatus main body to guide real-time monitoring.

[0034] 进一步的,参见图4及图8所示,屏蔽体滚筒11在径向方向上开设有相向对称设置的两个装源孔111,分别位于所述屏蔽体滚筒11的水平两端,装源孔111用作新装及更换放射源组件时使用,也可用于日常维修,以及图像引导装置的调试安装等,该治疗设备主体I还设有两个装源孔堵块18,分别与该屏蔽体滚筒11上的装源孔111配合安装,平常这两个装源孔111都用该堵快18塞住。 [0034] Further, referring to FIG. 4 and FIG. 8, the shield cylinder 11 defines two opposed sources mounted symmetrically disposed holes 111 in the radial direction, at each end of a horizontal drum 11 of the shield, loading hole 111 is used as the source newly installed and is replaced by an assembly of radioactive sources, may also be used for routine maintenance, installation and commissioning of the image-directing device, the treatment device is also provided with two fitting body I blockout source aperture 18, which respectively source 11 mounted on the shield aperture 111 with the mounting cylinder, usually two source holes 111 are fitted with the plug 18 plugged quickly.

[0035] 参见图9所示,源体滚筒12及准直体滚筒13在轴向的两端面上分别固设有同轴的源体齿环121、准直体齿环132,该源体齿环121、准直体齿环132分别与源体滚筒电机(图未示)及准直体滚筒电机(图未示)配合,并分别被其驱动旋转,实现屏蔽体滚筒11、源体滚筒12及准直体滚筒组件13之间的相互旋转,该源体滚筒电机及准直体滚筒电机均设于地面4以下,安装于安装底座3上,减小了噪音,由于每个滚筒均采用单独的驱动电机,避免了动态走线。 [0035] Referring to FIG. 9, the source body and the collimator body drum 12 of the drum 13 in the axial end faces are provided with fixed ring gear coaxially source body 121, collimator ring gear 132, the source material tooth ring 121, collimator ring gear 132 with the source body of the drum motor (not shown) and the collimator carrier drum motor (not shown) with, and are driven to rotate, to achieve shield body drum 11, source body drum 12 and collimator mutual rotation between the drum assembly 13, the source body and the collimator body of the drum motor of the drum motor 4 are located in the ground, mounted to the mounting base 3, the noise is reduced, since each roller are used alone drive motor, avoiding dynamic routing.

[0036] 回请参阅图4及图5所示,安装底座3固设于地板4以下,屏蔽体滚筒11及源体滚筒12部分设于地板4以下,此时源体滚筒12的地下部分形成一屏蔽室,当设备停止工作时,可将放射源组件14旋转至地下部分存储,加强了屏蔽效果,减小了对周边环境的放射污染。 [0036] Press see Figure 4 and 5, the mounting base 3 fixed to the floor 4, the roller 11 and the source shield member 12 provided in the floor portion of the drum 4 or less, when the underground portion of the source body of the drum 12 is formed a shielded room, when the device is stopped, the radiation source assembly 14 may be rotated to the underground storage portion, enhanced shielding effect reduces radioactive contamination of the surrounding environment.

[0037] 安装本发明放射治疗设备时,治疗设备主体I及治疗床2均固定安装于安装底座3上,安装好后的治疗床2可以围绕固定的旋转中心实现水平方向上± 25度旋转摆位,治疗设备主体I及治疗床2均安装好后,可进行整机工厂调试,完毕后,再现场整体吊装,节省了安装调试时间。 [0037] When installing the radiotherapy apparatus of the present invention, the therapeutic device main body I and the couch 2 are fixedly mounted to the mounting base 3, couch well after installation 2 may be implemented in the horizontal direction ± 25 ° rotation of the pendulum about a fixed center of rotation bit, after the device body I couch and 2 are good treatment installation, debugging can be machine factory, after finished, and then lifting the overall site, saving installation time.

[0038] 以下结合附图对本实施例放射治疗设备的具体工作过程进行说明: [0038] below with reference to the specific operation of this embodiment of the radiotherapy apparatus of the embodiment will be described:

[0039] 在治疗开始前电机驱动源体滚筒及准直体滚筒组件同步转动,本实施例图像引导装置根据需要对位于治疗床上的患者进行不同角度的DR影像采集或着360度整周的CBCT影像采集,将采集到的影像信息输入至图像坐标配准系统中进行校正,及时调整患者的体位及三维治疗床的坐标值,实现治疗前的靶点精确定位。 [0039] The front motor drive source drums and the collimator drum assembly rotate synchronously at start of treatment, for example, image directing device to a patient positioned on the treatment couch of the different angles required DR image capturing or the 360 ​​entire circumference of the CBCT of this embodiment for image acquisition, the acquired image information input to the image correction coordinate registration system, to adjust the position and the three-dimensional coordinate values ​​of a patient couch, to achieve precise positioning targets pretreatment.

[0040] 治疗时,源体滚筒电机驱动源体滚筒12旋转,带动放射源组件14绕源体滚筒12的中心轴旋转,即产生射线公转,此时与放射源组件14上放射源齿轮141相啮合的放射源齿环171处于静止状态,导致放射源齿轮141在放射源齿环171卡齿的作用下绕其自身中心轴旋转,从而带动放射源组件14绕其自身中心轴旋转,于是,射线在公转的同时产生自转,实现了360度范围内的任意旋转式拉弧动作。 [0040] treatment, the drum motor source body drive source of the rotating drum 12, radiation source assembly 14 is driven by the source body about the central axis of rotation of the drum 12, which produce radiation revolution, the gear case 141 and the radiation source assembly relative to the radiation source 14 the radiation source 171 engaging the toothed ring is in a stationary state, the gear 141 cause the radiation source to rotate about its own central axis of the toothed ring under the action of the radiation source 171 of the latch, so as to drive the radiation source assembly 14 is rotated about its central axis, thus, radiation generating rotation while revolving achieve arbitrary arc rotary motion range of 360 degrees.

[0041] 当源体滚筒12在任意角度静止,放射源驱动电机驱动其输出齿轮172转动,从而带动放射源齿环171绕其自身中心轴即源体滚筒中心轴旋转,再进一步带动放射源齿轮141绕其自身中心轴旋转,从而带动放射源组件14绕其自身中心轴旋转,即产生射线自转,实现了任意角度的定点旋转照射动作。 [0041] When the source of the drum body 12 stationary at any angle, the radiation source drive motor rotates the output gear 172, ring gear 171 so as to drive its own radiation source rotation shaft center of the drum about the central axis i.e. the source, the radiation source further drive gear 141 to rotate about its own central axis so as to drive the radiation source assembly 14 about its own central axis of rotation, i.e., rotation generated radiation, irradiating achieve the rotatory motion of any angle.

[0042] 当源体滚筒电机和放射源驱动电机均作用时,则可通过调节其转速来控制源体滚筒12和放射源组件14的转速,根据临床需要来实现不同公转和自转速度的组合。 [0042] When the drum motor source body drive motor and the radiation source are acting, be controlling the rotational speed of the drum 12 and the radiation source assembly 14 by adjusting the rotational speed of the source body, to achieve different combinations of revolution and rotation speed according to clinical need.

[0043] 如果在旋转拉弧的路径上遇见有敏感组织需要回避保护的情况,可以采取临时措施,将经过此路径时的放射源组件14的射线关闭,等通过这段路径后再将其打开,以此来实现360度不间断的旋转。 [0043] If you meet on a rotating arc path sensitive organizations need to avoid situations of protection, may take provisional measures, when the radioactive source components through this ray path 14 is closed, and so on through this path then turn it on in order to achieve 360-degree continuous rotation. 其中关闭放射源组件14的同时也可以将准直体滚筒13上的配重块132预先旋转至敏感组织的路径处加以遮挡,提高敏感组织的受保护能力。 Wherein the closing assembly 14 while the radiation source may be a counterweight 13 on the collimator body 132 of the drum pre-rotation sensitive tissues to be blocked at the path, to improve protection by sensitive tissues.

[0044] 在治疗过程中,本实施例的图像引导装置也可以对患者实现动态影像采集,对病灶及正常组织在治疗期间的状态实现实时监控,通过将定时采集到的信息输送至坐标配准系统进行配准处理,同步反馈至治疗床2的坐标控制系统,使得治疗床2能够同步跟踪患者病灶的变化规律,及时调整治疗床2的三维坐标值,让照射野紧紧“追随”靶区,从而实现实时精确治疗。 Image directing device [0044] During treatment, the present embodiment may be dynamic image acquisition of the patient, time monitoring of the state of the lesions and the normal tissue during treatment, conveying information to the coordinates of the registration by the timing acquisition to system registration process, synchronous feedback control system to coordinate the treatment bed 2 so that the treatment bed 2 can be synchronized to track changes of lesions in patients, to adjust treatment bed 2 dimensional coordinate values, so that the irradiation field closely "follow" target in order to achieve accurate real-time treatment. 同时,由于能实现图像实时引导治疗,本实施例的放射治疗设备能适用于头部和体部病患的治疗。 Meanwhile, since to achieve real-time image guided therapy, the radiotherapy apparatus of the present embodiment is applicable to the treatment of patients with head and body. [0045] 本实施例的图像引导放射治疗设备通过在源体滚筒上设置能提供射线的放射源组件与图像引导装置,并带动放射源组件及图像引导装置围绕治疗床360度整周旋转,实现了对患者360度范围内的影像跟踪及在治疗过程中的实时监测、靶点随动,从而达到了图像引导下精确放射治疗的目的。 [0045] The image guided radiation therapy apparatus of the present embodiment is 360 degrees rotation about the entire circumference of the couch by providing the radiation source assembly and the radiation image-directing device provides the source body in the drum, and drive the radioactive source assembly and image-directing device, to achieve the range of 360 to track the video and real-time monitoring of the patient during treatment, the servo target, so as to achieve the purpose of accurate radiation therapy under image guidance.

[0046] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。 [0046] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, any modifications within the spirit and principle of the present invention, equivalent substitutions and improvements should be included in the present within the scope of the invention.

Claims (10)

1. 一种图像引导放射治疗设备,其特征在于,包括一安装底座,以及固定安装于所述安装底座上的治疗床及治疗设备主体; 所述治疗设备主体包括一屏蔽体滚筒,还包括套设于所述屏蔽体滚筒内的一源体滚筒,以及套设于所述源体滚筒内的一准直体滚筒组件,所述源体滚筒与所述准直体滚筒组件均与屏蔽体滚筒同轴,所述屏蔽体滚筒固定安装于所述安装底座上,所述源体滚筒由源体滚筒电机驱动可绕其中心轴360度旋转,所述准直体滚筒组件由准直体滚筒电机驱动可绕其中心轴360度旋转; 所述治疗设备主体还包括一能提供射线的放射源组件,所述放射源组件可拆卸地安装于所述源体滚筒上,可随源体滚筒旋转而旋转,所述准直体滚筒组件包括一准直器,所述放射源组件放射出的射线经过所述准直器的限束后射向所述治疗设备主体内; 所述治疗设备 An image guided radiation therapy apparatus comprising a mounting base, and is fixedly mounted to the mounting device body and treatment couch on the base; said treatment apparatus comprises a shield cylinder body, further comprising a sleeve a shield disposed in the source body of the drum in the drum body, and a sleeve disposed within the drum of the quasi source assembly drums straight body, said source body and the collimator cylinder drum assembly with the shield drums are coaxially, said shield cylinder fixedly mounted to the mounting base, the source body drum driven by the drum motor source body can be rotated 360 degrees about its central axis, the collimator assembly drum by a drum motor collimator driver can rotate 360 ​​degrees about its central axis; said treatment apparatus further comprises a body radiation source assembly providing radiation, the radiation source assembly is removably mounted on the source body drum, the drum can be rotated with the source body rotating the collimator assembly comprises a collimator drum, the radiation source assembly after the rays emitted beam limiting collimators toward the treatment of said apparatus body; said treatment device 体还包括一固定安装于所述源体滚筒上的图像引导装置,可随所述源体滚筒旋转而旋转; 所述治疗床沿所述屏蔽体滚筒的轴线方向穿过所述治疗设备主体内,并被所述治疗设备主体360度整周包围。 Further comprises a body fixedly mounted to the image guide means on the drum of the source body, may be the source body with the rotation of the drum is rotated; the treatment axial direction of the drum body through the inner edge of the bed of the body of the shield treatment device, and the treatment device 360 ​​to surround the entire circumference of the body.
2.如权利要求I所述的图像引导放射治疗设备,其特征在于,所述源体滚筒的内壁上开设有第一图像引导装置安装通孔及第二图像引导装置安装通孔,所述第一图像引导装置安装通孔及第二图像引导装置安装通孔呈180度相向设置,所述第一图像引导装置安装通孔与所述第二图像弓I导装置安装通孔之间的连线穿过所述治疗床。 The image guided radiation therapy apparatus according to claim I, wherein the guide defines a first image and the second mounting through hole means a through hole image guide mounting means on an inner wall of the drum of the source body, the first an image guide mounting means and the second through-hole mounting image directing device 180 degrees to face the through hole is provided, the connection between the first mounting through hole guide image and the second image I bow guide means mounting through hole through the treatment bed.
3.如权利要求2所述的图像引导放射治疗设备,其特征在于,所述准直体滚筒组件在径向上留有两开口端,所述第一图像引导装置安装通孔与所述第二图像引导装置安装通孔之间的连线穿过所述准直体滚筒组件的两开口端。 The image guided radiation therapy apparatus according to claim 2, wherein said collimator assembly leaving two open ends of the roller in the radial direction, said first image guide mounting means and said second through hole the connection between two open ends of the image guide mounting means through said through-hole collimator roller assembly.
4.如权利要求2所述的图像引导放射治疗设备,其特征在于,所述第一图像引导装置安装通孔及第二图像引导装置安装通孔与所述放射源组件之间夹角均为90度。 4. The image guided radiation therapy apparatus as claimed in 2 claim, wherein the angle between said first image are mounting through hole and the second guide means through hole image guide mounting means and the radiation source assembly 90 degrees.
5.如权利要求2所述的图像引导放射治疗设备,其特征在于,所述图像引导装置包括发射端和接收端,所述发射端安装于所述第一图像引导装置安装通孔内,所述接收端安装于所述第二图像引导装置安装通孔内。 The image guided radiation therapy apparatus according to claim 2, wherein said guide means comprises an image transmitting and receiving ends, the transmitting end is attached to the first mounting through hole image guide means, the receiving said second end attached to the image-directing device mounting through hole.
6.如权利要求2所述的图像引导放射治疗设备,其特征在于,所述第一图像引导装置安装通孔为圆形,所述第二图像引导装置安装通孔为长方形。 6. The image guided radiation therapy apparatus as claimed in 2 claim, wherein the first mounting through hole image guide is circular, the second mounting through hole image guide means is rectangular.
7.如权利要求I所述的图像引导放射治疗设备,其特征在于,所述屏蔽体滚筒在径向方向上开设有装源孔,所述装源孔为相向对称设置的两个通孔,分别位于所述屏蔽体滚筒的水平两端,所述治疗设备主体还包括两个装源孔堵块,分别与所述屏蔽体滚筒上的装源孔配合安装。 The image I according to claim guided radiotherapy apparatus, wherein the source means defines a hole in the drum body in the radial direction of the shield, said source means is a hole facing two through holes symmetrically disposed, level at each end of the shield cylinder body, the body treatment apparatus further comprises two blocking means block holes sources, sources are respectively mounted on the body cylinder hole with the shield mating mounting.
8.如权利要求I所述的图像引导放射治疗设备,其特征在于,所述图像引导装置为DR数字X线成像系统。 The image I according to claim guided radiotherapy apparatus, wherein said guiding means is a DR image digital X-ray imaging system.
9.如权利要求8所述的图像引导放射治疗设备,其特征在于,所述图像引导装置为CBCT锥形束CT成像系统。 The image guide 8 of the radiation therapy device as claimed in claim, wherein said guide means is a CBCT image cone-beam CT imaging system.
10.如权利要求I至9任意一项所述的图像引导放射治疗设备,其特征在于,所述放射源组件提供的射线为伽玛射线。 10. The image I claimed in any one of claims 9 to guided radiation therapy device, characterized in that the radiation source assembly provides rays to gamma rays.
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