WO2022156137A1 - Dispositif d'imagerie à rayons x multimode micro-focus mobile - Google Patents

Dispositif d'imagerie à rayons x multimode micro-focus mobile Download PDF

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Publication number
WO2022156137A1
WO2022156137A1 PCT/CN2021/101509 CN2021101509W WO2022156137A1 WO 2022156137 A1 WO2022156137 A1 WO 2022156137A1 CN 2021101509 W CN2021101509 W CN 2021101509W WO 2022156137 A1 WO2022156137 A1 WO 2022156137A1
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WO
WIPO (PCT)
Prior art keywords
circuit
microprocessor
imaging device
detector
ray
Prior art date
Application number
PCT/CN2021/101509
Other languages
English (en)
Chinese (zh)
Inventor
侯庆锋
房鹰
邱建峰
Original Assignee
山东第一医科大学(山东省医学科学院)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 山东第一医科大学(山东省医学科学院) filed Critical 山东第一医科大学(山东省医学科学院)
Priority to DE212021000280.3U priority Critical patent/DE212021000280U1/de
Publication of WO2022156137A1 publication Critical patent/WO2022156137A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/40—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis
    • A61B6/4021—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for generating radiation specially adapted for radiation diagnosis involving movement of the focal spot
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4476—Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/42—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment with arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/548—Remote control of the apparatus or devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/301—Accessories, mechanical or electrical features portable apparatus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/30—Accessories, mechanical or electrical features
    • G01N2223/33—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts
    • G01N2223/3306—Accessories, mechanical or electrical features scanning, i.e. relative motion for measurement of successive object-parts object rotates

Definitions

  • the invention relates to the technical field of X-ray imaging, in particular to a movable micro-focus multi-modal X-ray imaging device.
  • X-ray imaging device is a device that organizes objects on a screen or film to form an image based on the penetrability, fluorescence effect and photosensitive effect of X-rays. It is widely used in biology, medicine, and machining fields, such as biological tumors Observation experiments, texture testing of machined originals, drug quality experiments, etc.
  • the flat panel detector is connected to the computer through a network cable.
  • This connection cannot be connected to other related equipment. It is only suitable for independent use, and cannot be connected with microfocus X-ray tubes, scanning rotation devices, etc. It is not suitable for the comprehensive control requirements of the micro-focus multi-modal X-ray imaging system, which leads to the inability to realize some functions of the system, and in addition, the overall operation of the system is very inconvenient.
  • the purpose of the present invention is to provide a movable micro-focus multi-modal X-ray imaging device, which can effectively connect a plurality of functional devices and is convenient for operation and control.
  • a movable micro-focus multi-modal X-ray imaging device which includes a base plate and a shielding box, and an X-ray transmitter and an object scanning turntable are fixedly arranged above the base plate.
  • the controller is fixed on the outside of the shielding box, the controller is respectively connected with the X-ray generator, the object scanning turntable, and the detector circuit, the object scanning turntable is set between the X-ray transmitter and the detector, and the three are set on the same straight line.
  • the shielding box body is movably connected with the bottom plate to form a closed room, and the shielding box body is made of lead plate material.
  • the X-ray generator includes a micro-focus X-ray tube, a high-voltage transformer, and a cooling fan. Inside the detector, there are cesium iodide scintillators, an amorphous silicon photodiode array, a data transmission module, and a power supply module; the object scanning turntable is composed of a base, a It consists of a stepping motor and a turntable, and the object to be tested is fixed above the turntable.
  • the controller includes a microprocessor, a keyboard circuit, an on-screen display module, and a drive circuit.
  • the microprocessor is connected to the microfocus X-ray tube through a data line, the microprocessor is connected to the object scanning turntable through the drive circuit, and the detection is connected through an interface circuit.
  • the microprocessor controller is also connected with the keyboard circuit and the screen display module.
  • the controller also includes a reset circuit and a power supply circuit that are connected to the microprocessor, the RESET pin of the microprocessor is connected to the reset circuit, the X1 and X2 pins are connected to the crystal oscillator, and the power input end is provided with potentiometers RP1 and RP2.
  • the drive chip model of the drive circuit is SN75451BP; the microprocessor is connected to the motor of the object scanning turntable through the drive circuit, and the motor model of the object scanning turntable is 57BYG250.
  • the microprocessor selects a chip whose model is AT89C52-24; the model for the microfocus X-ray tube is L12161-01.
  • the screen display module is an LCD dot matrix liquid crystal, and the specific model is JLX256160, and its 11-18 pins are connected with the P20-P27 pins of the microprocessor through wires.
  • serial port circuit Also includes a serial port circuit
  • the serial port circuit is a conventional serial port conversion circuit
  • the serial port circuit model is MAX232
  • its 12 pins and 11 pins are respectively connected with the RXD and TXD pins of the microprocessor.
  • the pins are connected to the controller of the microfocus X-ray tube.
  • the keyboard circuit includes a U3 chip and a 5 ⁇ 8 keyboard array; the U3 chip is a programmable logic chip of model ISP1016E, which is connected to the microprocessor through wires.
  • the model of the detector controller is paxs1313dx, which is connected with the P10 and P11 pins of the microprocessor.
  • the screen display module is used to display the working parameters of the X-ray tube and the flat panel detector
  • the keyboard circuit is used to input various data control commands
  • the reset circuit is to enter the reset state when the microprocessor is powered on
  • the power circuit is to provide 5 Volt power supply
  • the serial port circuit is used to receive the data of the X-ray tube and send data to the X-ray tube
  • the interface circuit is used to send control commands to the detector and detect the working state of the detector
  • the drive circuit is used to control the object scanning turntable Rotation angle.
  • the microprocessor is the core of the whole circuit.
  • the microprocessor reads the working parameters of the X-ray tube through the interface circuit, reads the working state of the detector through the interface circuit, and outputs it to the LCD screen for display.
  • the state outputs the data or commands input through the keyboard to the X-ray tube through the serial port circuit, and outputs the detector through the interface circuit.
  • the rotation angle of the object state is controlled.
  • the working process of the present invention is as follows: (1) placing the object to be imaged; (2) the controller reads the working data of the X-ray emitter and the detector, and displays it on the liquid crystal display; (3) adjusts the system parameters according to the imaging object : Set the X-ray tube voltage (kV) through the number keys; set the X-ray tube current (mA) through the number keys; select different imaging modes through the different mode keys; set the X-ray tube exposure time length through the number keys; Number keys to set the rotation angle of the object turntable; press the start key to start the X-ray tube exposure and emission; (4) when the acquisition is over, start the main imaging program and read the data; (5) image reconstruction and post-processing.
  • the present invention has a high degree of automation and is simple to operate.
  • the PAXSCAN 1310DX flat panel detector, the microfocus X-ray tube and the scanning rotation device are all connected to the automatic control device, so as to realize the coordinated automatic control of the whole system.
  • One-key operation is automatically and centrally controlled, which achieves the best combination of various equipment, improves operation efficiency, and eliminates operation errors; at the same time, it does not need to be equipped with a dedicated room, and a shielded box is set up, which lowers the requirements for the use environment.
  • FIG. 1 is a schematic structural diagram of the present invention
  • FIG. 2 is a schematic block diagram of the structure of the controller of the present invention
  • FIG. 3 is a circuit connection diagram of the controller of the present invention.
  • a movable micro-focus multi-modal X-ray imaging device comprises a base plate 1, a shielding box 2, an X-ray transmitter, an object scanning turntable 4 and a detector 5 are fixedly arranged above the base plate 1,
  • the controller 6 is fixedly arranged on the outside of the shielding box 2, and the controller 6 is respectively connected with the X-ray generator 3, the object scanning turntable 4, and the detector 5, and the object scanning turntable 4 is arranged between the X-ray transmitter and the detector 5. , the three are set on the same straight line.
  • the shielding box body 2 is movably connected with the bottom plate 1 to form a closed room.
  • the shielding box body 2 is made of lead plate and is provided with a movable door.
  • the X-ray generator 3 includes a micro-focus X-ray tube, a high-voltage transformer, and a cooling fan.
  • the detector 5 contains a cesium iodide scintillator, an amorphous silicon photodiode array, a data transmission module, and a power supply module.
  • the object scanning turntable 4 It consists of a base, a stepping motor, and a turntable, and the object to be tested is fixed above the turntable.
  • the controller 6 includes a microprocessor, a keyboard circuit, an on-screen display module, and a drive circuit.
  • the microprocessor is connected to the microfocus X-ray tube through a data line, and the microprocessor is connected to the object scanning turntable 4 through the drive circuit.
  • the detector controller is connected, and the microprocessor is also connected with the keyboard circuit and the screen display module.
  • the controller 6 also includes a reset circuit and a power supply circuit, which are connected to the microprocessor.
  • the RESET pin of the microprocessor is connected to the reset circuit.
  • the reset circuit is a typical power-on reset circuit.
  • the X1 and X2 pins are connected to a crystal oscillator, and the crystal oscillator Hertz is 11.0592 , the power input terminal is provided with potentiometers RP1, RP2.
  • the drive chip model of the drive circuit is SN75451BP; the microprocessor is connected to the motor of the object scanning turntable 4 through the drive circuit, and the motor model of the object scanning turntable 4 is 57BYG250.
  • the drive circuit includes drivers U4 and U5.
  • the unprocessed P12 and P13 pins are connected with wires, and the input end of U5 is connected with the P14 and P15 pins of the microprocessor.
  • the microprocessor selects a chip whose model is AT89C52-24; the model for the microfocus X-ray tube is L12161-01.
  • the screen display module is an LCD dot matrix liquid crystal, and the specific model is JLX256160, and its 11-18 pins are connected with the P20-P27 pins of the microprocessor through wires.
  • serial port circuit Also includes a serial port circuit
  • the serial port circuit is a conventional serial port conversion circuit
  • the serial port circuit model is MAX232
  • its 12 pins and 11 pins are respectively connected with the RXD and TXD pins of the microprocessor.
  • the pins are connected to the controller of the microfocus X-ray tube.
  • the keyboard circuit includes a U3 chip and a 5 ⁇ 8 keyboard array; the U3 chip is a programmable logic chip of model ISP1016E, which is connected to the microprocessor through wires. Specifically, its 3-10 pins are connected to the microprocessor. The P00-P07 pins are wired for connection.
  • the model of the detector controller is paxs1313dx, which is connected with the P10 and P11 pins of the microprocessor.
  • the screen display module is used to display the working parameters of the X-ray tube and the flat panel detector 5.
  • the keyboard circuit is used to input various data control commands. 5V power supply, the serial port circuit is used to receive data from the X-ray tube and send data to the X-ray tube, the interface circuit is used to send control commands to the detector 5 and detect the working state of the detector 5, and the drive circuit is used to control the object The rotation angle of the scanning turntable 4 .
  • the microprocessor is the core of the whole circuit. The microprocessor reads the working parameters of the X-ray tube through the interface circuit, reads the working state of the detector 5 through the interface circuit, and outputs the output to the liquid crystal display for display. The state of the circuit outputs the data or commands input through the keyboard to the X-ray tube through the serial port circuit, respectively, and outputs the detector 5 through the interface circuit. Through the drive circuit, the rotation angle of the object state is controlled.

Abstract

L'invention concerne un dispositif d'imagerie à rayons X multimode micro-focus mobile. Le dispositif d'imagerie à rayons X comprend une plaque inférieure (1) et une boîte de protection (2), un générateur de rayons X (3), une table rotative de balayage d'objet (4) et un détecteur (5) étant disposés de manière fixe au-dessus de la plaque inférieure (1) ; un contrôleur (6) est disposé de manière fixe sur un côté extérieur de la boîte de protection (2) ; le contrôleur (6) est en connexion en circuit avec le générateur de rayons X (3), la table rotative de balayage d'objet (4) et le détecteur (5), respectivement ; la table rotative de balayage d'objet (4) est disposée entre le générateur de rayons X (3) et le détecteur (5), et le générateur de rayons X, le détecteur et la table rotative de balayage d'objet sont disposés sur la même ligne ; et un détecteur à écran plat PAXSCAN 1310DX (5), un tube à rayons X micro-focus et un dispositif de balayage tournant sont tous connectés à un dispositif de commande automatique. Le dispositif d'imagerie à rayons X permet une coordination mutuelle et une commande automatique de l'ensemble du système, un fonctionnement par touche unique permettant une commande centralisée automatique, et la combinaison optimale de tous les appareils, ce qui permet d'améliorer l'efficacité de fonctionnement et d'éliminer les erreurs de fonctionnement. De plus, il n'est pas nécessaire de prévoir une pièce spéciale, et une boîte de protection (2) est prévue, ce qui réduit la nécessité de disposer d'un environnement opérationnel.
PCT/CN2021/101509 2021-01-21 2021-06-22 Dispositif d'imagerie à rayons x multimode micro-focus mobile WO2022156137A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE212021000280.3U DE212021000280U1 (de) 2021-01-21 2021-06-22 Bewegliche Mikrofokus-Multimodal-Röntgenbildgebungsvorrichtung

Applications Claiming Priority (2)

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CN202110080268.0 2021-01-21
CN202110080268.0A CN112957058A (zh) 2021-01-21 2021-01-21 一种可移动式微焦点多模态x线成像装置

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WO2022156137A1 true WO2022156137A1 (fr) 2022-07-28

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DE (1) DE212021000280U1 (fr)
WO (1) WO2022156137A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN214761132U (zh) * 2021-01-21 2021-11-19 山东第一医科大学(山东省医学科学院) 一种微焦点多模态x线成像控制电路
CN112957058A (zh) * 2021-01-21 2021-06-15 山东第一医科大学(山东省医学科学院) 一种可移动式微焦点多模态x线成像装置

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JP2006340963A (ja) * 2005-06-10 2006-12-21 Reitekku:Kk Ｃｔ装置
CN101653355A (zh) * 2009-09-11 2010-02-24 华中科技大学 一种活体小动物成像系统及成像方法
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CN208591469U (zh) * 2017-10-19 2019-03-12 大连理工大学 一种融合ct和pet双模态图像引导的小动物一体化放疗系统
CN110584692A (zh) * 2019-09-02 2019-12-20 王雪梅 双模态成像设备
CN112957058A (zh) * 2021-01-21 2021-06-15 山东第一医科大学(山东省医学科学院) 一种可移动式微焦点多模态x线成像装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006340963A (ja) * 2005-06-10 2006-12-21 Reitekku:Kk Ｃｔ装置
CN101653355A (zh) * 2009-09-11 2010-02-24 华中科技大学 一种活体小动物成像系统及成像方法
CN102319083A (zh) * 2011-08-01 2012-01-18 中国人民解放军第四军医大学 一种大视野低剂量的Mirco-CT锥形束成像系统
CN205729388U (zh) * 2016-06-17 2016-11-30 赵福敏 一键式体检车内x射线/dr自动摄影控制系统
CN208591469U (zh) * 2017-10-19 2019-03-12 大连理工大学 一种融合ct和pet双模态图像引导的小动物一体化放疗系统
CN110584692A (zh) * 2019-09-02 2019-12-20 王雪梅 双模态成像设备
CN112957058A (zh) * 2021-01-21 2021-06-15 山东第一医科大学(山东省医学科学院) 一种可移动式微焦点多模态x线成像装置

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DE212021000280U1 (de) 2022-08-11

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