WO2017050280A1 - 一种pet系统探测器环孔径调节装置 - Google Patents

一种pet系统探测器环孔径调节装置 Download PDF

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WO2017050280A1
WO2017050280A1 PCT/CN2016/099926 CN2016099926W WO2017050280A1 WO 2017050280 A1 WO2017050280 A1 WO 2017050280A1 CN 2016099926 W CN2016099926 W CN 2016099926W WO 2017050280 A1 WO2017050280 A1 WO 2017050280A1
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hole
movable member
detector
detector ring
rotating disk
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French (fr)
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许剑锋
郭峰
彭旗宇
陈杰
谢思维
许光立
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Huazhong University of Science and Technology
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    • 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]
    • A61B6/037—Emission tomography
    • 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

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  • the invention belongs to a component of a medical imaging device, and particularly relates to a PET system detector ring aperture adjusting device, which can change the size of a ring of a positron emission tomography detector ring to adapt to different parts of the body, thereby improving the device. Sensitivity.
  • the positron emission tomography (PET) system is a special medical imaging device that can construct an image reflecting the physiological function of the site to be tested according to the specific distribution of the radiotracer in the human or animal body.
  • PET systems include detector loops, data acquisition systems, image reconstruction software, and mechanical components such as hospital beds.
  • the detector ring of the existing PET system is surrounded by a plurality of detectors to form a ring device, and the ring aperture surrounded by the ring device is fixed in size.
  • the ring diameter of the detector ring must be large enough; when it is used to detect small parts of the body, such as the head, it is necessary to reduce its aperture to improve the system. Sensitivity.
  • the existing method is to install a motor, a screw, and a rail system for each detector to control the position of each detector from the center of the circle to change the size of the aperture of the detector ring.
  • this method requires a large number of motors, lead screws, and guide rails.
  • a whole body medical PET system may consist of hundreds of detectors, and solving the problem in this way is costly.
  • the invention provides a PET system detector ring aperture adjusting device, which can realize the radial movement of the detector, solves the problem that the existing similar device has a complicated structure and high cost, and is used for changing the size of the detector ring aperture.
  • the invention provides a PET system detector ring aperture adjusting device, comprising a fixed disk and a rotating Turntable, which is characterized by:
  • the fixing plate is a rectangular plate having a central circular hole, and has a plurality of sliding grooves distributed in a radial shape around the central circular hole, the cross section of which is a convex shape, and the extension line of the central axis of each sliding groove intersects The center of the center circular hole, 6 ⁇ N ⁇ 100;
  • the rotating disk is a disk having a central through hole, the center of the disk coincides with the center of the central circular hole of the fixed disk, the aperture of the central through hole is equal to the central circular hole, and the surface of the rotating disk has a planar thread groove
  • the planar thread groove forms an Archimedes spiral on the surface of the rotating disk; the rotating disk is suspended on the bottom surface of the fixed disk by a supporting wheel uniformly distributed along the circumference thereof, and the surface having the planar thread groove is upward, in an external force Under the action, it can make a rotary motion around its center;
  • Each of the sliding grooves of the fixing plate is provided with a movable member, and the bottom surface of the movable member is matched with the planar thread groove of the rotating disk. Under the rotation of the planar thread groove, the movable members can move radially along the sliding groove;
  • Each of the sliding groove surfaces of the fixing plate is mounted with a connecting plate which is connected with the corresponding movable member and can be adjusted in a position relative to the latter in the radial direction;
  • detectors are mounted on each of the connecting plates, and the detectors together form a detector ring.
  • the movable member has a cross-sectional shape in a convex shape, and is matched with the cross-sectional shape of the sliding groove.
  • the bottom surface of the movable member has two protruding thread teeth, which can engage with the planar thread groove of the rotating disk; the top surface of the movable member has a waist shape. Slots and threaded blind holes.
  • the bottom surface of the connecting plate has a positioning protrusion for slidingly engaging along the waist groove;
  • the connecting plate has a connecting hole, and both sides of the lower part of the connecting hole respectively have a pin hole and a screw hole;
  • the connecting hole is a waist shape a hole for engaging a threaded hole of the movable member through a screw, thereby adjusting both the position of the connecting plate in the radial direction relative to the movable member and the two; the pin hole for detecting by the pin pair Positioning the screw hole for connecting to the detector by a screw.
  • the movable member since the detectors constituting the detector ring need to form a circular shape, the movable member must be engaged with the planar thread groove of the rotating disk during the installation process, and the movable member is mounted on the fixed disk by a circle, due to the planar thread The structure of the groove is limited, and each angled movable member has a displacement in the radial direction.
  • the two protruding threads on the bottom surface of the movable member cooperate with the flat thread groove of the rotating disc.
  • the movable member moves along the sliding groove of the fixed disc, through the connecting plate and the activity.
  • the detectors that are connected together also move radially along with the movable member, thereby changing the size of the detector ring aperture.
  • the distance of the movable member can be controlled by controlling the number of revolutions of the rotating disc, thereby precisely controlling the size of the ring aperture.
  • the invention uses a motor to drive the rotation of the rotating disk to drive a circle of the detector to move in the radial direction, thereby changing the size of the aperture of the detector ring; and the existing similar device by installing a motor, a lead screw and a guide rail on each detector Compared with the way, the structure is greatly simplified and the cost is saved.
  • Figure 1 is a half cross-sectional view showing a top view of an embodiment of the present invention
  • 2(A) is a plan view of a fixed disk according to an embodiment of the present invention.
  • Figure 2 (B) is an enlarged cross-sectional view taken along line A-A of Figure 2 (A);
  • Figure 3 (A) is a top view of the rotating disk of the present invention
  • Figure 3 (B) is a cross-sectional view taken along line B-B of Figure 3 (A);
  • Figure 3 (C) is a bottom view of the rotating disk connected to the fixed disk
  • Figure 3 (D) is a plan view of the fixed disk after connecting the rotating disk
  • Figure 3 (E) is an enlarged cross-sectional view taken along line C-C of Figure 3 (D);
  • Figure 3 (F) is a plan view of the fixing plate after the connection plate is installed
  • Figure 4 (A) is a front view of the movable member
  • Figure 4 (B) is a cross-sectional view taken along line D-D of Figure 4 (A),
  • Figure 4 (C) is a cross-sectional view taken along line E-E of Figure 4 (A);
  • Figure 5 (A) is a front view of the connecting plate
  • Figure 5 (B) is a cross-sectional view taken along line F-F of Figure 5 (A),
  • Figure 5 (C) is a front view of the connection plate and the detector
  • Fig. 5(D) is a cross-sectional view taken along line G-G of Fig. 5(C).
  • an embodiment of the present invention includes a fixed disk 10 and a rotating disk 20;
  • the fixed disk 10 is a rectangular plate having a central circular hole 11 having 48 sliding grooves 12 distributed in a radial shape around the central circular hole 11, as shown in FIG. 2 (FIG. 2).
  • the cross section of the chute 12 is convex, and the extension line of the central axis of each chute 12 intersects the center of the central circular hole 11;
  • the rotary disk 20 is a disk having a central through hole 21, and the center of the disk and the center circular hole 11 of the fixed disk The center of the hole is coincident, the aperture of the central through hole 21 is equal to the central circular hole 11, and the surface of the rotary disk 20 has a planar thread groove 22, and the planar thread groove 22 constitutes an Archimedes spiral on the surface of the rotary disk 20;
  • Rotating disk 20 passes along The support wheel 30 whose circumference is evenly distributed is hung on the bottom surface of the fixed disc 10, and has one side of the plane thread groove 22 upward, and can rotate around the center of the circle under the action of an external force;
  • each of the sliding slots 12 of the fixed disk 10 is provided with a movable member 40.
  • the bottom surface of the movable member 40 and the planar threaded groove 22 of the rotating disk Matching, under the rotation of the planar thread groove 22, each movable member 40 can move radially along the chute 12;
  • each sliding slot 12 of the fixed disk 10 is mounted with a connecting plate 50 which is connected with the corresponding movable member 40 and can be adjusted in a position relative to the latter in the radial direction;
  • the movable member 40 has a cross-sectional shape in a convex shape, which matches the cross-sectional shape of the sliding slot 12, and has two bottom surfaces of the movable member 40.
  • the raised thread 41 is engageable with the planar threaded groove 22 of the rotating disk; the top surface of the movable member 40 has a waisted groove 42 and a threaded blind hole 43.
  • the bottom surface of the connecting plate 50 has a positioning protrusion 51 for slidingly engaging along the waist groove 42.
  • the connecting plate 50 has The connecting hole 52 has a pin hole 53 and a screw hole 54 on both sides of the lower portion of the connecting hole 52; the connecting hole 52 is a waist hole for engaging with the thread blind hole 43 of the movable member 40 through the screw. , thereby connecting the connecting plate 50 and the movable member 40;
  • each of the connecting plates 50 is mounted with a detector 60.
  • the detector 60 is positioned by a pin hole 53 in the connecting plate 50 and connected to the screw hole 54 by screws.
  • the units 60 together form a detector ring.

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Abstract

一种PET系统探测器环孔径调节装置，包括固定盘（10）和旋转盘（20）。固定盘（10）上围绕中心圆孔（11）具有N个呈辐射状轮辐分布的滑槽（12）。旋转盘（20）表面具有平面螺纹槽（22），其在旋转盘（20）表面构成阿基米德螺旋线。旋转盘（20）通过支撑轮（30）悬挂在固定盘（10）底面，固定盘（10）的各滑槽（12）内均装有活动件（40）。在平面螺纹槽（22）旋转作用下，各活动件（40）可以沿滑槽（12）径向移动。固定盘（10）的各滑槽（12）表面均安装有连接板（50），其与对应的活动件（40）连接。工作时，各连接板（50）上均安装有探测器（60），各探测器（60）共同构成探测器环。该装置使用一个电机带动旋转盘（20）的转动，就能带动一圈探测器（60）沿径向移动，从而改变探测器环的孔径，和现有同类装置相比，大大简化了结构，节约了成本。

Description

一种PET系统探测器环孔径调节装置 【技术领域】
本发明属于医疗成像设备组成部件，具体涉及一种PET系统探测器环孔径调节装置，能够改变正电子发射断层显像检测器环孔径的大小，以适配身体不同大小的部位，从而提高设备的灵敏度。
【背景技术】
正电子发射断层显像系统(PET)是一种特殊的医疗成像设备，能够根据人体或动物活体内放射性示踪剂的具体分布构建出待测部位反映其生理功能的图像。现有的PET系统包括检测器环、数据采集系统、图像重建软件以及病床等机械部件。
现有PET系统的探测器环由多个探测器环绕构成环形装置，环形装置所环绕的环孔径大小固定不变。对于全身医用的PET系统来说，为了能够适应全身的检测，探测器环的环孔径必须足够大；当用其检测身体较小部位时，如头部，有必要减小其孔径，以提高系统的灵敏度。
因此，需要一种可以改变探测器环孔径大小的装置，以适应不同大小的部位。现有方式是为每个探测器装上电机、丝杆、导轨系统，以控制每个探测器距圆心的位置从而改变探测器环孔径的大小。但是这种方法需要大量的电机、丝杆、导轨。一个全身医用PET系统可能有上百个探测器组成，用这种方式解决问题成本很高。
【发明内容】
本发明提供一种PET系统探测器环孔径调节装置，能够实现探测器径向移动，解决现有同类装置结构复杂、成本高的问题，用于改变探测器环孔径的大小。
本发明所提供的一种PET系统探测器环孔径调节装置，包括固定盘和旋 转盘，其特征在于：
所述固定盘为具有中心圆孔的矩形板，其上围绕所述中心圆孔具有N个呈辐射状轮辐分布的滑槽，其截面为凸字形，各滑槽中轴线的延长线相交于所述中心圆孔的圆心，6≤N≤100；
所述旋转盘为具有中心通孔的圆盘，圆盘的圆心与所述固定盘的中心圆孔的圆心重合，中心通孔的孔径和所述中心圆孔相等，旋转盘表面具有平面螺纹槽，所述平面螺纹槽在旋转盘表面构成阿基米德螺旋线；所述旋转盘通过沿其圆周均匀分布的支撑轮悬挂在所述固定盘底面，具有平面螺纹槽的一面向上，在外力的作用下可以绕其圆心做旋转运动；
所述固定盘的各滑槽内均装有活动件，所述活动件底面与旋转盘的平面螺纹槽匹配，在平面螺纹槽旋转作用下，各活动件可以沿滑槽径向移动；
所述固定盘的各滑槽表面均安装有连接板，其与对应的活动件连接并能够调节在径向相对于后者的位置；
工作时，各连接板上均安装有探测器，各探测器共同构成探测器环。
所述的PET系统探测器环孔径调节装置，其特征在于：
所述活动件横截面为凸字形，与所述滑槽的横截面形状匹配，活动件底面具有两道凸起的螺纹牙，能够和旋转盘的平面螺纹槽啮合；活动件顶面具有腰形槽和螺纹盲孔。
所述的PET系统探测器环孔径调节装置，其特征在于：
所述连接板底面具有定位凸块，用于沿所述腰形槽滑动配合；连接板上具有连接孔，连接孔下部两侧分别均具有销钉孔和螺孔；所述连接孔为腰形 孔，用于通过螺钉穿过其与所述活动件的螺纹孔配合，从而既可调节连接板在径向相对于活动件的位置又将两者连接；所述销钉孔用于通过销钉对探测器定位，所述螺孔用于通过螺钉与探测器连接。
本发明工作时，由于构成探测器环的各探测器需组成圆形，而活动件在安装过程中必须要和旋转盘的平面螺纹槽啮合，活动件在固定盘上装一圈时，由于平面螺纹槽的结构限制，每偏转一个角度活动件都有沿径向方向的错位，安装后所有的活动件并不构成圆形，所以通过螺钉穿过连接板的连接孔与所述活动件连接，将连接板的定位凸块与活动件的腰形槽配合，能够保证连接板相对于活动件在径向上移动，调节连接板相对于活动件的径向位置，保证所有的探测器组成圆形；
当旋转盘旋转时，活动件底面两道凸起的螺纹牙和旋转盘的平面螺纹槽配合，在平面螺纹槽的旋转作用下，活动件会沿固定盘的滑槽移动，通过连接板和活动件连接在一起的探测器也跟随活动件一起沿径向移动，从而改变探测器环孔径的大小。当平面螺纹的导程确定时可以通过控制旋转盘旋转的圈数来控制活动件移动的距离，从而精确控制环孔径的大小。
本发明使用一个电机带动旋转盘的转动就能带动一圈探测器沿径向移动，从而改变探测器环孔径的大小；和现有同类装置通过在每个探测器上安装电机、丝杆、导轨的方式相比较，大大简化了结构，节约了成本。
【附图说明】
图1为本发明实施例俯视图的半剖视图；
图2(A)为本发明实施例的固定盘俯视图；
图2(B)为图2(A)局部的A-A剖视放大图；
图3(A)为本发明旋转盘俯视图，
图3(B)为图3(A)的B-B剖视图；
图3(C)为旋转盘连接于固定盘的仰视图；
图3(D)为连接旋转盘后固定盘的俯视图；
图3(E)为图3(D)局部的C-C剖视放大图；
图3(F)为安装连接板后固定盘的俯视图；
图4(A)为活动件主视图；
图4(B)为图4(A)的D-D剖视图，
图4(C)为图4(A)的E-E剖视图；
图5(A)为连接板主视图；
图5(B)为图5(A)的F-F剖视图，
图5(C)为连接板与探测器连接的主视图；
图5(D)为图5(C)的G-G剖视图。
【具体实施方式】
以下结合附图对本发明进一步说明。
如图1所示，本发明的实施例包括固定盘10和旋转盘20；
如图2(A)所示，所述固定盘10为具有中心圆孔11的矩形板，其上围绕所述中心圆孔11具有48个呈辐射状轮辐分布的滑槽12，如图2(B)所示，滑槽12的截面为凸字形，各滑槽12中轴线的延长线相交于所述中心圆孔11的圆心；
如图3(A)、图3(B)、图3(C)所示，所述旋转盘20为具有中心通孔21的圆盘，圆盘的圆心与所述固定盘的中心圆孔11的圆心重合，中心通孔21的孔径和所述中心圆孔11相等，旋转盘20表面具有平面螺纹槽22，所述平面螺纹槽22在旋转盘20表面构成阿基米德螺旋线；所述旋转盘20通过沿 其圆周均匀分布的支撑轮30悬挂在所述固定盘10底面，具有平面螺纹槽22的一面向上，在外力的作用下可以绕其圆心做旋转运动；
如图3(D)所示，所述固定盘10的各滑槽12内均装有活动件40，如图3(E)所示，所述活动件40底面与旋转盘的平面螺纹槽22匹配，在平面螺纹槽22旋转作用下，各活动件40可以沿滑槽12径向移动；
如图3(F)所示，所述固定盘10的各滑槽12表面均安装有连接板50，其与对应的活动件40连接并能够调节在径向相对于后者的位置；
如图4(A)、图4(B)、图4(C)所示，所述活动件40横截面为凸字形，与所述滑槽12的横截面形状匹配，活动件40底面具有两道凸起的螺纹牙41，能够和旋转盘的平面螺纹槽22啮合；活动件40顶面具有腰形槽42和螺纹盲孔43。
如图5(A)、图5(B)、图5(D)所示，所述连接板50底面具有定位凸块51，用于沿所述腰形槽42滑动配合；连接板50上具有连接孔52，连接孔52下部两侧分别均具有销钉孔53和螺孔54；所述连接孔52为腰形孔，用于通过螺钉穿过其与所述活动件40的螺纹盲孔43配合，从而将连接板50和活动件40连接；
如图5(C)所示，工作时，各连接板50上均安装有探测器60，探测器60通过连接板50上的销钉孔53定位并通过螺钉与所述螺孔54连接，各探测器60共同构成探测器环。

Claims (3)

  1. 一种PET系统探测器环孔径调节装置，包括固定盘(10)和旋转盘(20)，其特征在于：
    所述固定盘(10)为具有中心圆孔(11)的矩形板，其上围绕所述中心圆孔(11)具有N个呈辐射状轮辐分布的滑槽(12)，其截面为凸字形，各滑槽(12)中轴线的延长线相交于所述中心圆孔(11)的圆心，6≤N≤100；
    所述旋转盘(20)为具有中心通孔(21)的圆盘，圆盘的圆心与所述固定盘的中心圆孔(11)的圆心重合，中心通孔(21)的孔径和所述中心圆孔(11)相等，旋转盘(20)表面具有平面螺纹槽(22)，所述平面螺纹槽(22)在旋转盘(20)表面构成阿基米德螺旋线；所述旋转盘(20)通过沿其圆周均匀分布的支撑轮(30)悬挂在所述固定盘(10)底面，具有平面螺纹槽(22)的一面向上，在外力的作用下可以绕其圆心做旋转运动；
    所述固定盘(10)的各滑槽(12)内均装有活动件(40)，所述活动件(40)底面与旋转盘的平面螺纹槽(22)匹配，在平面螺纹槽(22)旋转作用下，各活动件(40)可以沿滑槽(12)径向移动；
    所述固定盘(10)的各滑槽(12)表面均安装有连接板(50)，其与对应的活动件(40)连接并能够调节在径向相对于后者的位置；
    工作时，各连接板(50)上均安装有探测器(60)，各探测器(60)共同构成探测器环。
  2. 如权利要求1所述的PET系统探测器环孔径调节装置，其特征在于：
    所述活动件(40)横截面为凸字形，与所述滑槽(12)的横截面形状匹 配，活动件(40)底面具有两道凸起的螺纹牙(41)，能够和旋转盘的平面螺纹槽(22)啮合；活动件(40)顶面具有腰形槽(42)和螺纹盲孔(43)。
  3. 如权利要求1或2所述的PET系统探测器环孔径调节装置，其特征在于：
    所述连接板(50)底面具有定位凸块(51)，用于沿所述腰形槽(42)滑动配合；连接板(50)上具有连接孔(52)，连接孔(52)下部两侧分别均具有销钉孔(53)和螺孔(54)；所述连接孔(52)为腰形孔，用于通过螺钉穿过其与所述活动件(40)的螺纹盲孔(43)配合，从而既可调节连接板(50)在径向相对于活动件(40)的位置又将两者连接；所述销钉孔(53)用于通过销钉对探测器(60)定位，所述螺孔(54)用于通过螺钉与探测器(60)连接。
PCT/CN2016/099926 2015-09-24 2016-09-23 一种pet系统探测器环孔径调节装置 Ceased WO2017050280A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111361144A (zh) * 2019-08-11 2020-07-03 石河子大学 一种用于钢管衬塑的可变直径加热装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104473657B (zh) 2014-11-11 2017-03-01 东莞南方医大松山湖科技园有限公司 支撑单元、支撑设备以及采用该支撑设备的发射成像设备
CN105342632B (zh) * 2015-09-24 2018-03-09 华中科技大学 一种pet系统探测器环孔径调节装置
CN107744399A (zh) * 2017-09-25 2018-03-02 中派科技（深圳）有限责任公司 高能粒子注入系统及高能粒子注入控制方法
CN107616806A (zh) * 2017-09-25 2018-01-23 广东影诺数字医学科技有限公司 Pet系统探测器环位置调节单元及发射成像设备
CN111671458B (zh) * 2020-06-22 2025-08-19 苏州瑞派宁科技有限公司 一种正电子发射断层成像装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990643A (zh) * 2008-04-10 2011-03-23 皇家飞利浦电子股份有限公司 模块化多几何结构pet系统
CN102178542A (zh) * 2011-04-02 2011-09-14 苏州瑞派宁科技有限公司 一种可变结构的正电子发射断层成像机架
EP2578149A2 (en) * 2010-05-28 2013-04-10 Gachon University of Industry-Academic Cooperation Foundation Variable pet device
CN103169492A (zh) * 2011-12-21 2013-06-26 Ge医疗系统环球技术有限公司 放射线断层摄影装置、检测装置和空间分辨率切换方法
CN105342632A (zh) * 2015-09-24 2016-02-24 华中科技大学 一种pet系统探测器环孔径调节装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5825031A (en) * 1996-10-11 1998-10-20 Board Of Regents The University Of Texas System Tomographic pet camera with adjustable diameter detector ring
KR101317366B1 (ko) * 2012-04-26 2013-10-11 주식회사 져스텍 평면이동형 양전자 방출 단층 촬영 장치
CN103549968B (zh) * 2013-10-15 2015-10-28 沈阳东软医疗系统有限公司 一种pet探测器及其探测器环
CN104473657B (zh) * 2014-11-11 2017-03-01 东莞南方医大松山湖科技园有限公司 支撑单元、支撑设备以及采用该支撑设备的发射成像设备
CN104367332B (zh) * 2014-12-09 2017-02-22 武汉数字派特科技有限公司 一种pet探测器的探测器环

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990643A (zh) * 2008-04-10 2011-03-23 皇家飞利浦电子股份有限公司 模块化多几何结构pet系统
EP2578149A2 (en) * 2010-05-28 2013-04-10 Gachon University of Industry-Academic Cooperation Foundation Variable pet device
CN102178542A (zh) * 2011-04-02 2011-09-14 苏州瑞派宁科技有限公司 一种可变结构的正电子发射断层成像机架
CN103169492A (zh) * 2011-12-21 2013-06-26 Ge医疗系统环球技术有限公司 放射线断层摄影装置、检测装置和空间分辨率切换方法
CN105342632A (zh) * 2015-09-24 2016-02-24 华中科技大学 一种pet系统探测器环孔径调节装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111361144A (zh) * 2019-08-11 2020-07-03 石河子大学 一种用于钢管衬塑的可变直径加热装置

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