CN200951265Y - Radiation field measurement and isocenter testing device of radiotherapeutics equipment - Google Patents

Radiation field measurement and isocenter testing device of radiotherapeutics equipment Download PDF

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Publication number
CN200951265Y
CN200951265Y CN 200620027012 CN200620027012U CN200951265Y CN 200951265 Y CN200951265 Y CN 200951265Y CN 200620027012 CN200620027012 CN 200620027012 CN 200620027012 U CN200620027012 U CN 200620027012U CN 200951265 Y CN200951265 Y CN 200951265Y
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China
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plate
center
radiation
isocenter
detection
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CN 200620027012
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Chinese (zh)
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王烝
房爱龄
尤金强
宁晓梅
王平
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天津医科大学附属肿瘤医院
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Abstract

The utility model discloses a field size and iso-center detecting device of the radiotherapy equipment, which belongs to the radio-processing equipment or the calibration equipment of radiotherapy. The utility model comprises a level adjustable underframe plate, bracket plates connected vertically with the two end of the underframe plate respectively. Wherein, the middle axle of the bracket plate is connected with a field panel which can be turnover located and a field detecting plate which has film groove among the field backs; wherein, the field panel is provided with lead points mark and square field mark lines, an outer side wall of the bracket plate is provided with iso-center detecting model which comprises an iso-center detecting pedestal with horizontal and vertical mark lines; the center of the pedestal is fixed with a horizontal needle body which stretches out. The utility model can decrease the therapy error, promote the therapy quality, guarantee the interest of patients, and decrease the medical accidents in radiotherapy department and the burden of staff. The utility model is suitable for popularization and application in the radiotherapy department of the hospital which has medical electron linear accelerator and simulation location machine.

Description

放疗设备的射野测量及等中心检测装置 Measuring portal radiotherapy apparatus and detection apparatus isocenter

技术领域 FIELD

本实用新型涉及辐射的处理装置或放射疗的校准装置,具体是一种医用放疗设备的射野测量及等中心检测装置。 Calibration processing apparatus or radiation therapeutic apparatus of the present invention relates to radiation, particularly radiation therapy is a medical device and measuring the radiation field isocenter detector.

背景技术 Background technique

肿瘤放射治疗的疗效与治疗精确性有直接关系。 Treatment efficacy and accuracy of radiation oncology are directly related. 即便先进的放疗设备和辅助工具,而由于位置偏差造成放射性损伤和对要害器官损伤事故。 Even advanced radiotherapy equipment and aids, and due to the positional deviation caused by radiation injury and accident damage to vital organs. 这些都是由于治疗机的精度、与模拟机之间的差异所引起的系统误差,从而导致部分靶区不能得到足够的剂量,因此大大降低了肿瘤的局部控制率,使肿瘤的复发率上升,最终导致放疗失败。 These systematic errors are due to the difference between the accuracy of the simulator due to the treatment machine, thereby causing target portion can not be obtained a sufficient dose, thus greatly reducing the local tumor control rates of the recurrence rate is increased, eventually leading to failure of radiotherapy.

由于本身的机械运动磨损和电器元件的漂移老化,都会造成仪器设备程度不同的各种误差,需要有专门的工具来检验校准。 Because of their mechanical movement wear and aging drift of electrical components, will result in varying degrees of equipment of various errors, the need for specialized tools to verify the calibration.

目前,我国对医用直线加速器的应用质量尚未进行检测和评审,监管不到位。 At present, the application of quality medical linear accelerators have not been testing and assessment, oversight. 有关医用加速器的应用质量检测项目、方法和工具尚需进一步研究解决,尤其是研究适合中国国情的各种质量保证(QualityAssurance,QA)检测设备、工具等,为开展QA提供检测手段是目前此项领域的发展方向。 Related medical accelerator application quality testing project, methods and tools to address needs further study, especially on a variety of quality assurance (QualityAssurance, QA) testing equipment, tools, etc. suitable for China's national conditions, to provide detection means for carrying out QA is this the development direction of the field.

常规QA工作一般使用坐标纸、直尺、三角板,量角规、三角架加探针等工具,激光定位灯用前指针校验。 Conventional generally used in QA graph paper, ruler, set square, protractor gauge, probe or the like tools plus tripod, laser positioning the lamp before checking the pointer. 每检测一项内容都要设置和固定,方法重复性而差需多次摆位,常规QA检测内容繁多,耗时费力。 Each detected an element should be set and fixed, reproducible method to be repeated and poor placement, routine QA detection range of content, time-consuming.

中国专利2662932公开了一种“放疗定位模板”,其是在方形透明板材中部的中心点及其上、下、左、右呈垂直和水平设置有等距“十”字形定位标记,模板两测顶角为斜边,背面两侧边为梯形滑道,模板上部设凹槽拉手。 Chinese Patent No. 2,662,932 discloses a "radiation positioning template", which is its center point on the central square transparent plate, down, left, and right horizontally arranged in a vertical and equidistant "ten" shaped positioning marks, the two test template apex angle of the oblique side, the back side edges of the trapezoidal slide, the upper template set handle recess. 使用时将其插放于模拟定位机托架或直线加速器治疗托架上。 When used on its interposition simulator machine carriage or carriage linear accelerator.

中国专利2755735公开了“一种多功能放疗设备校准仪”,其包含一个设置有辅板的基板,辅板和基板的上表面分别画有相一致的十字,以辅板上的十字线交点为中心向外刻有校准圆、方形射野框及圆形角度刻度盘,辅板的前端固定有中心指示针;基板上设有呈三角状布置的三个水平调节螺丝;基板的横向左右两侧中间各设一个组合标尺板、基板的横向两侧交错设置有水平标尺板,中国专利1163395公开了“用于立体定向放射治疗设备的核物理测量装置”,包括模体、支架、和紧固装置等,其中模体是积木式的,由方模框架、人体组织等效材料块及其耳轴等附件组成,人体组织等效材料块紧密填充于方模框架中;中间可以预留暗盒插槽和电离室插板插槽;模体通过耳轴和紧固装置固定于支架上;方模框架是一个有相邻两个面开口的平行六面体空腔,用人 Chinese Patent No. 2,755,735 discloses "a multifunctional calibrator radiotherapy apparatus", comprising a substrate provided with the auxiliary plate, the upper surface of the substrate and the auxiliary plate are painted consistent cross to the cross point of the secondary board is adjusting the circular center outward engraved tip square and circular portal frame angle scales, the auxiliary plate fixed to a central indicator pin; triangular shape is provided on a substrate arranged in three horizontal adjustment screws; left and right lateral sides of the substrate each intermediate plate is provided a combination scale, a staggered lateral sides of the substrate provided with a horizontal scale plate, Chinese Patent No. 1,163,395 discloses "an apparatus for measuring nuclear physics stereotactic radiotherapy apparatus", comprising a die body bracket, and fastening means and the like, wherein the mold body is a building block from the mold frame side, human tissue equivalent material block and its attachment trunnions etc., human tissue equivalent material block closely filled in a molding frame side; intermediate cartridge slots may be reserved card slot and the ionization chamber; phantom trunnion and the fastening means fixed to the bracket; side mold frame is adjacent to a surface of the opening of the two parallel hexahedron cavity, employing 等效组织材料制成。 Tissue equivalent material.

发明内容 SUMMARY

本实用新型就是为了解决工作中存在的每项检测内容都要对设备重新设置和固定,方法重复性差而需多次摆位,常规QA检测内容繁多,耗时费力的问题,而提供一种放疗设备的射野测量及等中心检测装置。 The present invention is to solve each test content exist in the work must be re-set and fixed equipment, poor reproducibility and methods need to repeatedly swing position, routine QA detection range of content, time-consuming and laborious problems, and to provide a radiotherapy portal center measuring device and other detection means.

本实用新型是按以下技术方按实现的。 The present invention is achieved by the following technical side.

一种放疗设备等中心射野检测装置,包括设有调整螺栓和水平仪的底架板,其底架板两端分别垂直连接对应的支架板,支架板内轴接可翻转定位的在射野测量面板和背板之间形成有胶片槽的射野检测板,射野测量面板中心及按十字方向等距设置铅点标记和形成方形的方野标线,背板至少设有2个将其贯穿的紧固螺栓;一侧支架板的外侧壁附设等中心检测模体,检测模体包括标有水平、垂直标记线的等中心检测基座,基座中心点固设与之垂直外伸的水平针体。 Radiotherapy apparatus like one kind of portal center detecting means is provided comprising a level adjusting bolt and the chassis plate, both ends of the chassis plates are respectively connected to the corresponding vertical bracket plate, a shaft connected to the radiation field measurement invertible plate positioned within the stent is formed with a film exit slot field detection plate between the front and back panels, center panel and measuring radiation field cross direction by equidistant marks lead points and a square of the field reticle side, the back plate is provided with at least two of its penetrating a tight the fastening bolts; like outer wall attached to the center body detection mode, the detection side of the frame plate mold body comprises a horizontal mark, and other central detection mark line perpendicular to the base, the base is provided with horizontal center point of the needle body fixed vertical overhang .

这样设计的本实用新型,使用铅点标记的方法确定在验证胶片中的灯光野的位置,以便和实际照射野进行比照,确定误差范围本实用新型可以为适形放疗质量保证中的床座旋转轴与射野中心轴的一致性,机架旋转轴与射野中心轴的一致性。 The present invention, the use of lead-point marking methods designed to determine the validation position of the film in the lighting field, and for cf and the actual irradiation field, to determine the error range of the present invention can be radiation conformable quality assurance of the bed base to rotate consistency with the axis of the central axis of the radiation field, the consistency of the gantry rotation axis and the central axis of the radiation field.

从而,在治疗任务完成的同时保证放射治疗精度,减少治疗误差,,提高放射治疗质量,保障患者利益。 Thus, while the treatment of the task is completed to ensure the accuracy of radiation therapy, reducing treatment errors ,, improve the quality of radiation therapy, to protect the interests of patients. 减少放疗科医疗事故的发生,又可以减轻工作人员的负担。 Reduce the radiotherapy department of medical malpractice occurred, but also reduce the burden on staff. 适合在有医用电子直线加速器和模拟定位机的医院放射治疗科推广应用,为工作任务繁重的放疗科提供简单实用的工具,更符合精确放疗和常规放疗的实际应用。 In the hospital for medical linear accelerator and simulator machine of Radiation Oncology application that provides a simple and practical tool for the arduous tasks of Radiation Oncology, more in line with the practical application of precise radiotherapy and conventional radiotherapy.

附图说明 BRIEF DESCRIPTION

图1是本实用新型的立体结构示意图图2是本实用新型翻转射野检测板后的立体结构示意图图中:1.底架扳 2.支架板3.射野测量面板 4.背板5.胶片槽 6.旋转耳架7.耳架肋 8.螺栓9.补芯螺母 10.水平仪11.铅点标记 12.耳架轴13.等分标记线 14.方野标线15.中心线标记 16.射野检测扳 FIG. 1 is a perspective view of the present invention is a structural diagram of FIG. 2 a perspective schematic view of the structure of the present invention detects radiation field reversing plate: a chassis pull the carrier plate 2. 3. 4. backplane portal measuring panel 5. 6. The rotary frame 7. The ear ear film frame groove rib 8. 9. Bushing bolt nut 10. The level mark 12. The lugs 11 point lead frame 14. The marker shaft 13. aliquots wild parties reticle mark 15. The centerline 16. detection pull portal

17.螺钉 18.支架板孔19.等中心检测基座 20.针体21.标记线 22.等中心检测模体具体实施方式下面结合附图及实施例对本实用新型进行详细说明。 BRIEF screws 18. The bracket 17 and the hole 19. The plate like base 20. The center of the detection marker 21. The needle hub body 22. The other mold detecting binding DETAILED DESCRIPTION The following embodiments of the present invention is described in detail.

一种放疗设备等中心射野检测装置,包括设有调整螺栓8和水平仪10的底架板1,其底架板1两端分别垂直连接对应的支架板2,支架板2内轴接可翻转定位的在射野测量面板3和背板4之间形成有胶片槽5的射野检测板16,射野测量面板3中心及按十字方向等距设置铅点标记11和形成方形的方野标线14,背板4至少设有2个将其贯穿的紧固螺栓;一侧支架板2的外侧壁附设等中心检测模体22,检测模体包括标有水平、垂直标记线21的等中心检测基座19,基座中心点固设与之垂直外伸的水平针体20。 Center of one kind of radiation and other portal device detecting means comprises a chassis plate 8 is provided with an adjusting bolt 10 and a level 1, both ends of which are perpendicular to the chassis plate 1 connected to a corresponding carrier plate 2, the shaft support plate 2 connected invertible is formed between the field emission 4 is positioned in the measurement panel 3 and the field emission backplate film groove 16 of the detection plate 5, measured radio field center panel 3 and the cross direction by equidistant marks 11 and the lead point of a square reticle wild parties 14 , back plate 4 is provided with at least two fastening screws which penetrate; like outer wall attached to the center side of the frame plate 22 of the detection module comprises detection mode is marked with horizontal, vertical lines marking the center of the detection group 21 Block 19, the center point of the base is fixed thereto a horizontal pin extending perpendicular to the outer body 20.

支架板2的外侧壁附设的等中心检测基座19是采用螺钉连接一体的。 An outer side wall of the carrier plate 2 and the like attached to the center of the detection base 19 is integrally connected with screw.

本实施例中背板4设有5个补芯螺母9供安装与之配合的紧固螺栓(未图示)。 In this embodiment the backing plate 4 is provided with five Bushing mounting nut 9 for fastening bolts (not shown) cooperating therewith. 方野标线14分别为5×5cm2、10×10cm2、15×15cm2、20×20cm2。 Wild parties reticle 14 were 5 × 5cm2,10 × 10cm2,15 × 15cm2,20 × 20cm2.

射野测量面板3和背板4之间形成的胶片槽5供插放X光片,图2中所示为尚未安装紧固螺栓8的补芯螺母9,补芯螺母9安装紧固螺栓(未图示)后,防止胶片槽5内插放的X光片错位移动。 Film groove 5 formed between the field emission backplate and the panel 3 for measuring the interposition X-rays, as shown in FIG. 2 Not Bushing fastening bolt mounting nut 8 9, 9 Bushing mounting nut fastening bolt ( after not shown), to prevent the X-ray film within the groove 5 interposition dislocation movement.

所述的医用电子直线加速器等中心射野检测装置,其支架板2内将射野检测板16翻转定位的是二者间设置有一侧中心形成外凸轴心12、另一侧圆心旁形成凸楞状耳架肋7的旋转耳架6,其中的轴心12安装在支架板2上部的支架板孔18内,另一侧圆心旁形成凸楞状的耳架肋7经螺钉17连接射野检测板16两侧边,旋转耳架6周边形成等分标记线13。 The medical electron linac isocenter portal detection means, which carrier plate 2 within the portal detection plate 16 is provided with a flip positioned between the two convex side of the central axis 12 is formed next to other side of the center projection is formed Leng-shaped carrier ribs ear ear rotating frame 7 6, 18, next to the other side of the center hole formed in the bracket plate 12 is mounted on the axis where the upper holder plate 2 projecting ear-shaped flute holder screw 17 is connected via ribs 7 portal detecting edges on both sides of plate 16, the periphery of the rotary frame 6 is formed aliquots ear marking line 13.

所述的放疗设备等中心射野检测装置,其旋转耳架6周壁的等分标记线13中包括过圆心连线与耳架肋7平行的,以及过圆心连线和耳架肋7垂直的等分标记线13。 Said central equipment portal radiation detecting means, the rotation frame aliquot ear tag line 6 through the peripheral wall includes a center connection with the lug carrier 13 parallel to the ribs 7, and the connection through the center and perpendicular to the ear frame ribs 7 aliquots marking line 13.

所述的放疗设备等中心射野检测装置,其支架板2顶部形成与旋转耳架6等半径弧形,并于支架板2顶点侧壁形成中心线标记15。 Isocentric radiotherapy apparatus of the portal detection means, which carrier plate 2 is formed with a top lug rotating radius of the arcuate frame 6 and the like, and the apex side wall of the carrier plate 2 are formed a center line mark 15.

所述的放疗设备等中心射野检测装置,其支架板外侧的支架板孔旁至少设置2个贯穿支架板并撑顶在旋转耳架上定位的螺栓。 Isocentric radiotherapy apparatus of the portal detection apparatus, the carrier plate aperture adjacent the outer bracket plate which is provided through at least two support plates and hold the top of the bolt rotating frame positioning ear. 定位的2个螺栓8是以支架板孔18为中心的纵、横坐标方向设置的。 Located two bolt holes 18 of the carrier plate 8 is centered on the longitudinal direction of the abscissa.

所述的放疗设备的射野测量及等中心检测装置,其等中心检测基座19是一侧基底水平的大半圆板,中心点上固设外伸的水平针体20末端直径小于针体直径;实施例中的水平针体20直径4mm,同心针体末端直径1mm,采用不锈钢加工制作。 Measuring portal and said radiotherapy apparatus isocenter detecting means which detects the center of the base and other side of the substrate 19 is a large semicircular plate horizontal, fixed horizontal pin 20 extending outside diameter smaller than the tip diameter of the needle body center point ; horizontal diameter of the needle 20 in the embodiment embodiment 4mm, concentric with the needle tip diameter 1mm, stainless steel manufacture.

这样,射野检测板16可旋转并可准确定位于水平和垂直位置。 Thus, the radiation field and the rotation detection plate 16 can be accurately positioned in the horizontal and vertical positions. 便于快捷地核查各种治疗头装置的光野。 Facilitates quick verification of the various light field treatment head apparatus.

所述的放疗设备等中心射野检测装置,其底架板1面上分别设有横向和纵向水平仪10;以及按三角形位置设置的水平调整螺栓8。 Isocentric radiotherapy apparatus of the portal detection apparatus, a surface of the chassis plate which are provided horizontal and vertical level 10; and a horizontal position of the triangle is provided by an adjusting screw 8.

所述的放疗设备等中心射野检测装置,其螺栓8与补芯螺母9相配合。 Isocentric radiotherapy apparatus of the portal detection means 8 which cooperates with a bolt nut Bushing 9. 补芯螺母9的外丝螺固在底架板1、背板4和支架板2上,螺栓8螺接在补芯螺母9内。 Bushing outer wire nut 9 screwed on the chassis plate 1, a back plate 4 and the support plate 2, bolt 8 screwed in the nut Bushing 9.

本实用新型的背板4、底架板1和支架板2采用聚丙烯材料加工制成,射野面扳3是用厚10mm乳白色有机玻璃制成的;补芯螺母9、螺栓8以及水平仪10为市售成品,使用时,治疗床固定在0°(或180°Varian规定),与大机架垂直;将治疗头的十字线对准面板上的十字线;用水平仪将底板调成水平状态,必要情况下可以调整三个可调底脚螺钉;将射野检测板、支架板、背板和X光底板装好;用面板上的十字线校正治疗头的十字线;把等中心检测模体置于治疗床面,指针指向机架中心;旋转大机架,不断调整床的高度等位置,直到十字叉线与等中心旋转指针末端最接近为止;参照等中心检测模体的位置,旋转大机架,同时记下治疗头十字线与指针针尖相对位置。 Backsheet 4 of the present invention, the chassis bracket plate 1 and plate 2 is made of a polypropylene material processing, pull portal surface 3 is made of a thick milky white perspex 10mm; 9 Bushing nut, bolt 8 and 10 level commercially available products, when used in fixed bed treatment 0 ° (or 180 ° Varian predetermined), the large rack vertically; the treatment head on the reticle crosshair aligned panels; with the floor level into a horizontal state , may be adjusted if necessary three screw adjustable feet; the portal detection plate, the bracket plate, the back plate and the X-ray base installed; correction treatment head with crossing lines on the reticle panel; the isocenter detector modules were placed in the treatment bed, the pointer to the center of the frame; large gantry rotation, constantly adjusting the height position of the bed or the like, and the like until the crossed lines so far pointer at the end closest to the center of rotation; reference position of the isocenter detector module body, the rotation large rack also note the crosshairs treatment head relative position of the pointer tip.

等中心测量模体的末端是一个直径为1mm的圆柱体区域。 Center of the measuring end of the mold body like a cylinder having a diameter of 1mm region. 若治疗头十字线交点位于这个直径为1mm的区域内,那么大机架的机械等中心就是+/-0.5mm左右;同理,其前端直径为4mm,若治疗头十字线交点位于这个直径为4mm的区域内,那么大机架的机械等中心就是+/-2mm左右。 If the treatment head located at the cross point of the mechanical isocenter within the region of 1mm diameter, the large rack is about +/- 0.5mm; Similarly, the tip having a diameter of 4mm, when the treatment head located at the cross point of the diameter in the region of 4mm, machinery and other central rack is so much about +/- 2mm. 将大机架回置到垂直状态(即0°或180°,Varian规定)通过本实用新型对三台医用电子直线加速器检测,可见年久机器在机械性能方面比新的机器稍差,测试中观察使用该工具校正和检测没有影响不同治疗出束的剂量率、输出量等物理剂量指标,见表1、表2。 Large rack set back to the vertical position (i.e., 0 ° or 180 °, Varian predetermined) of the present invention, three medical linear accelerator detector, seen in the machine for a long time in terms of mechanical properties slightly inferior to new machines, testing no effect was observed using the different treatment tool correction and detection of the beam dose rates, output and other physical indicators of the dose, in table 1, table 2. 通过测试,与普通常规QA工具相比,本实用新型在检测校准结果一致的前提下,确实具有方便快捷的特点,其实用性在机器状态测试中得到验证。 By testing, compared with ordinary conventional QA tools, the present invention is in the detection result of the calibration consistent premise does have convenient features, its usefulness is verified in the testing machine state.

Claims (8)

1.一种放疗设备的射野测量及等中心检测装置,包括设有调整螺栓(8)和水平仪(10)的底架板(1),其特征在于底架板(1)两端分别垂直连接对应的支架板(2),支架板(2)内轴接可翻转定位的在射野测量面板(3)和背板(4)之间形成有胶片槽(5)的射野检测板(16),射野测量面板(3)中心及按十字方向等距设置铅点标记(11)和形成方形的方野标线(14),背板(4)至少设有2个将其贯穿的紧固螺栓;一侧支架板(2)的外侧壁附设等中心检测模体(22),检测模体包括标有水平、垂直标记线(21)的等中心检测基座(19),基座中心点固设与之垂直外伸的水平针体(20)。 A radiation therapy apparatus isocenter radiation field measurement and detection means includes a screw provided with adjustment (8) and a level (10) of the chassis plate (1), characterized in that the chassis plate (1) perpendicular to the two ends connecting carrier plate (2), the carrier plate is pivot radiation field measurement invertible panel positioned between (3) and a backplate (4) (2) film is formed with a corresponding groove (5) of the portal detection plate ( 16), the radiation field measurement panel (3) and the center of the cross direction by equidistant marks point lead (11) and a square of the square field reticle (14), a back plate (4) is provided through which at least two fastening bolt; side of the frame plate (2) attached to an outer sidewall isocenter detector module (22), labeled detection module comprises a horizontal, vertical marker line (21) of the isocenter detector base (19), a base center point horizontal extending perpendicular to the outer needle body fixed thereto (20).
2.根据权利要求1所述的放疗设备的射野测量及等中心检测装置,其特征在于支架板(2)内将射野检测板(16)翻转定位的是二者间设置有一侧中心形成外凸轴心(12)、另一侧圆心旁形成凸楞状耳架肋(7)的旋转耳架(6),其中的轴心(12)安装在支架板(2)上部的支架板孔(18)内,另一侧圆心旁形成凸楞状的耳架肋(7)经螺钉(17)连接射野检测板(16)两侧边,旋转耳架(6)周壁形成等分标记线(13)。 Measurement and radiation field isocenter of the detection apparatus 2. The radiotherapy apparatus according to claim 1, characterized in that the carrier plate (2) within the radiation field detection plate (16) is provided with a positioning flip side of the center between the two is formed convex axis (12), next to the other side of the center frame is formed projecting tab flute shape rib (7) of the rotary lobe frames (6), wherein the axis (12) mounted on the carrier plate (2) of the carrier plate upper hole (18), (7) is formed next to other side of the center projecting rib flute-shaped frame via a screw lug (17) connected to side edges of the radiation field detection plate (16), the peripheral wall of the rotary frame lug (6) is formed aliquots marking line (13).
3.根据权利要求2所述的放疗设备的射野测量及等中心检测装置,其特征在于在旋转耳架(6)周壁的等分标记线(13)中包括过圆心连线与耳架肋(7)平行的,以及过圆心连线和耳架肋(7)垂直的等分标记线(13)。 Measurement and radiation field isocenter of radiation detection apparatus according to claim 2 of the apparatus, characterized by comprising connecting the centers over the rib cage with lugs (13) in the rotary lobe frames aliquot marking line (6) of the peripheral wall aliquots vertical (7) in parallel, and connecting the centers over the rib cage, and ear (7) marked line (13).
4.根据权利要求1所述的放疗设备的射野测量及等中心检测装置,其特征在于支架板(2)外侧的支架板孔(18)旁至少设置2个贯穿支架板并撑顶在旋转耳架(6)上定位的螺栓(8)。 Measurement and radiation field isocenter of radiation detection apparatus as claimed in claim 1 of the apparatus, characterized in that the carrier plate (2) arranged beside the carrier plate 2 through the bracket aperture plate (18) and supporting at least the top of the outer rotary ear holder (6) positioned on the bolt (8).
5.根据权利要求1所述的放疗设备的射野测量及等中心检测装置,其特征在于底架板(1)面上分别设有横向和纵向水平仪(10);以及按三角形位置设置的水平调整螺栓(8)。 Measurement and radiation field isocenter of said detecting means 5. The radiotherapy apparatus according to claim 1, characterized in that the chassis plate (1) are provided with transverse and longitudinal plane level (10); and a horizontal position arranged in a triangular adjusting bolt (8).
6.根据权利要求1或4或5所述的放疗设备的射野测量及等中心检测装置,其特征在于螺栓(8)与补芯螺母(9)相配合。 6. The portal measuring and detecting device according isocentric radiotherapy apparatus 1 or claim 4 or claim 5, characterized in that the bolt (8) and Bushing nut (9) cooperates.
7.根据权利要求1所述的放疗设备的射野测量及等中心检测装置,其特征在于支架板(2)顶部形成与旋转耳架(6)等半径弧形,并于支架板(2)顶点侧壁形成中心线标记(15)。 The field emission device of the measuring radiation and the like of a central detection apparatus as claimed in claim, characterized in that the carrier plate (2) is formed with a top lug rotating frame (6) radius arc, and in the carrier plate (2) forming sidewall apex centerline mark (15).
8.根据权利要求1所述的放疗设备的射野测量及等中心检测装置,其特征在于等中心检测基座(19)是一侧基底水平的大半圆板,中心点上固设外伸的水平针体(20)末端直径小于针体直径。 The portal radiation measuring apparatus 1 and the like according to claim center detecting means, characterized in that the central detection and the like of the base (19) side of the substrate is large horizontal semicircular plate, fixed on the center point of the overhang horizontal needle (20) is smaller than the diameter of the needle tip diameter.
CN 200620027012 2006-08-11 2006-08-11 Radiation field measurement and isocenter testing device of radiotherapeutics equipment CN200951265Y (en)

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