Automatic testing equipment for medical x-ray tube leakage

Abstract

The application discloses a kind of medical X-ray tube leakage ray automatic test equipment, including connecting device, detection device and data acquisition processing system, connecting device has bearing crossbeam and clamping assembly, bearing crossbeam drives clamping assembly horizontal swing, to make clamping assembly reciprocating movement between upper and lower stations and test site;Detection device has support and several probes arranged on support, support can rotate around test site, drive several probes to carry out leakage ray test to medical X-ray tube;Data acquisition processing system has several acquisition components and host computer, several acquisition components are respectively arranged on several probes, for obtaining the leakage ray test information and position information of several probes, and transmission to host computer;Host computer processes information and stores.It can automatically, quickly, accurately and safely complete the leakage ray test of various models of medical X-ray tube, to ensure that product meets the requirements of medical device safety test regulations.

Description

Technical Field

[0001] This invention relates to the field of medical X-ray tube testing technology, and in particular to an automatic testing device for leakage radiation in medical X-ray tubes. Background Technology

[0002] Medical radiation source assemblies (such as medical X-ray tube assemblies) are the main components that generate radiation in medical equipment such as X-ray machines and CT scanners. Radiation exits through the window of the radiation source assembly; leakage from other parts of the assembly is not permitted, as this could harm the human body. According to national laws and regulations, radiation leakage testing of medical radiation source assemblies is a mandatory test for CT products.

[0003] According to relevant laws and regulations regarding leakage radiation testing, the required measurement range is a spherical area with a radius of 1 meter, centered on the focal point of the radiation source in the medical radiation source assembly under test. Therefore, the current method used for leakage radiation testing is as follows: First, 18 detectors meeting regulatory requirements (such as gas ionization detectors manufactured by PTW in Germany) are arranged in a staggered semi-circular array, ensuring that the distance from all detectors to the center of the array is 1 meter. Then, the array is rotated horizontally 90 degrees relative to the ground around its center, placing it directly above the medical radiation source assembly, and the test begins. During the test, the array remains stationary while the medical radiation source assembly is rotated 180 degrees by the test turntable to achieve the semi-spherical test. Subsequently, the operator rotates the entire medical radiation source assembly 180 degrees (see appendix). Figure 1 As shown, the medical radiation source component is changed from having the window facing upwards to having the window facing downwards. Because the center position of the radiation source changes after the window faces downwards, it is necessary to adjust the height of the medical radiation source component to ensure that the distance from the center of the radiation source to the detector is 1 meter. Then, the medical radiation source component is rotated 180 degrees again to achieve the test of the other half of the sphere. The test requirements of the entire sphere of the medical radiation source component are completed through two tests.

[0004] However, the above-mentioned traditional leaky radiation testing method has the following shortcomings in operation:

[0005] 1) During testing, the X-ray source components need to be manually flipped. On the one hand, since the weight of medical X-ray source components varies, there is a risk of the components falling during flipping, which could easily cause injury to the operator. On the other hand, to avoid the cables on the medical X-ray source components becoming tangled during flipping, the cables need to be manually untied before flipping and then fixed back to the medical X-ray source components after flipping. This takes a long time and reduces testing efficiency.

[0006] 2) During testing, if a leak is detected in the medical radiation source component, the exact location of the leak cannot be accurately determined.

[0007] In view of this, the present invention is hereby proposed. Summary of the Invention

[0008] To overcome the above-mentioned defects, the present invention provides an automatic leakage testing device for medical X-ray tubes, which can automatically, quickly, accurately and safely complete leakage testing of medical X-ray tubes of various models and configurations, ensuring that medical X-ray tubes meet the requirements of medical device safety testing regulations.

[0009] The technical solution adopted by this invention to solve its technical problem is: an automatic leakage testing device for medical X-ray tubes, comprising a connecting device, a detection device, and a data acquisition and processing system. The connecting device has a supporting beam and a clamping assembly disposed on the supporting beam for clamping and fixing the medical X-ray tube to be tested. The supporting beam can drive the clamping assembly to swing horizontally, enabling the clamping assembly to reciprocate between the upper and lower material positions and the testing position. The detection device has a support vertically disposed next to the testing position and several detectors spaced downwards on the support. The support can rotate around the testing position, thereby driving the several detectors to perform leakage testing on the entire spherical surface of the medical X-ray tube placed in the testing position. The data acquisition and processing system has several acquisition components and a host computer. The several acquisition components are respectively disposed on the several detectors, used to acquire leakage test information and position information of the several detectors respectively, and transmit the acquired leakage test information and position information to the host computer. The host computer processes and stores the received leakage test information and position information.

[0010] As a further improvement of the present invention, the clamping assembly has a mounting plate, a hanging plate, a pressure plate, and a driving component A. The mounting plate is fixedly mounted on the supporting crossbeam, the hanging plate is fixedly mounted on the mounting plate, and the hanging plate can be used to hang the medical X-ray tube to be tested. The pressure plate is movable up and down on the mounting plate, and the pressure plate is also located above the hanging plate. The driving component A can drive the pressure plate to move closer to or away from the hanging plate, so that the pressure plate can press and fix or loosen the medical X-ray tube hanging on the hanging plate.

[0011] As a further improvement of the present invention, a vertically extending groove is provided on the side of the mounting plate facing away from the supporting crossbeam;

[0012] Both the hanging plate and the pressure plate are made of a material that has both wear resistance and high-energy radiation resistance, and the material is selected from any one of Teflon, polyamide-imide and polysulfone resin; in addition, the hanging plate is inverted L-shaped and fixedly installed on the bottom side of the mounting plate facing away from the supporting crossbeam, and the pressure plate is flat and slidably connected to the slide groove.

[0013] As a further improvement of the present invention, the load-bearing crossbeam is a horizontal strip, and the mounting plate is fixedly provided on one side of its length direction;

[0014] The connecting pipe device also has a base, a rotating spindle and a driving component B. The base is a hollow structure. The rotating spindle is rotatably disposed in the base and the central axis of the rotating spindle extends vertically. The rotating spindle is also fixedly connected to the other side of the bearing beam along its length direction. The driving component B can drive the rotating spindle to rotate around its own central axis.

[0015] As a further improvement of the present invention, a high-voltage cable socket that can move along its length is also provided on the supporting crossbeam, the high-voltage cable socket being used for plugging in the high-voltage cable plug of the medical X-ray tube.

[0016] As a further improvement of the present invention, the bracket is a vertically arranged arc-shaped body, and the chordal surface of the bracket coincides with the vertical center line of the test position; a plurality of the detectors are arranged at equal intervals along the arc length direction of the bracket on the inner side of the bracket facing the test position.

[0017] In addition, the detection device also has a driving component C, which can drive the bracket to rotate around the test position.

[0018] As a further improvement of the present invention, the automatic testing equipment also includes a frame, the frame having a column, and an upper crossbeam and a lower base plate respectively fixedly disposed on the upper and lower sides of the column;

[0019] The base is fixedly mounted on the column, or the base is mounted on the column and can move up and down.

[0020] The two ends of the bracket along its arc length are rotatably mounted on the upper crossbeam and the lower base plate via rotating shafts, and the driving component C can drive the rotating shafts to rotate.

[0021] As a further improvement of the present invention, the detection device also has a locator, which is fixedly disposed on the inner side of the bracket facing the test position, for monitoring the position of the medical X-ray tube placed in the test position.

[0022] As a further improvement of the present invention, each of the acquisition components has an RFID reader for reading the leaky ray test information of the detector and a position sensor for sensing the position information of the detector.

[0023] As a further improvement of the present invention, the data acquisition and processing system also includes a PLC controller, several RFID readers are respectively connected to the PLC controller via Modbus communication protocol, several position sensors are respectively connected to the PLC controller via serial port, and the PLC controller is also connected to the host computer via OPC communication protocol.

[0024] The beneficial effects of this invention are as follows: Compared with the prior art, 1) the automatic X-ray leakage testing equipment provided by this invention integrates functions such as "automatic loading and unloading", "automatic rotation detection", and "automatic acquisition and processing of X-ray leakage test information and position information". On the one hand, its high degree of automation and integration effectively replaces manual flipping operations, which reduces the labor intensity of operators and improves testing efficiency, testing accuracy and safety during testing, thus ensuring that medical X-ray tubes meet the requirements of medical device safety testing regulations. On the other hand, it can accurately identify the X-ray leakage location on the medical X-ray tube, further improving the accuracy of the test. 2) In the automatic X-ray leakage testing equipment provided by this invention, ① the structural configuration of the connecting pipe device facilitates loading and unloading operations and testing operations, and the layout of the loading / unloading positions and testing positions can be adjusted according to the working environment, making it highly adaptable; ② the detection device adopts a rotary detection method, that is, after the support and the detector on it rotate one revolution, the entire spherical surface of the medical X-ray tube can be tested for leakage radiation without flipping the medical X-ray tube, which not only improves testing efficiency but also reduces the technical requirements of the connecting pipe device on the stability of the medical X-ray tube, thus reducing the structural design requirements of the connecting pipe device; ③ the data acquisition and processing system has a fast response speed and a fast data transmission speed, which improves the stability and real-time performance of the system operation, as well as the accuracy of the system operation, thereby enabling accurate identification of the leakage radiation location points on the medical X-ray tube and improving the accuracy of the test results. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the working state of an existing X-ray tube leakage testing device.

[0026] Figure 2 This is a schematic diagram of the automatic X-ray leakage testing device for medical X-ray tubes as described in this invention, viewed from a first-person perspective.

[0027] Figure 3 This is a schematic diagram of the automatic X-ray leakage testing device for medical X-ray tubes as described in this invention, viewed from a second perspective.

[0028] Figure 4 This is a schematic diagram of the automatic X-ray leakage testing device for medical X-ray tubes as described in this invention, viewed from a third-person perspective.

[0029] Figure 5 This is a schematic diagram of the connecting pipe device of the present invention from a first-view perspective; (with a medical X-ray tube).

[0030] Figure 6 This is a schematic diagram of the connecting pipe device of the present invention from a second-view perspective; (with a medical X-ray tube).

[0031] Figure 7 This is a schematic diagram of the detection device of the present invention mounted on the frame and viewed from a first perspective;

[0032] Figure 8 This is a schematic diagram of the detection device of the present invention mounted on the frame and viewed from a second perspective;

[0033] Figure 9 This is a block diagram illustrating the working principle of the data acquisition and processing system described in this invention.

[0034] Referring to the accompanying drawings, the following explanations are provided:

[0035] 1. Connecting device; 10. Bearing beam; 11. Clamping assembly; 110. Mounting plate; 111. Hanging plate; 112. Pressure plate; 12. Base; 120. Opening; 13. Rotating spindle; 14. High-voltage cable socket; 15. Slide; 2. Detection device; 20. Bracket; 21. Detector; 22. Rotating shaft; 23. Positioner; 3. Data acquisition and processing system; 300. RFID reader; 301. Position sensor; 31. Host computer; 310. KepServer software; 311. Data processor; 32. PLC controller; 4. Frame; 40. Column; 41. Upper beam; 42. Lower base plate. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] Example 1:

[0038] Please see the appendix Figure 2 To be continued Figure 9As shown, this invention provides an automatic testing device for leakage radiation in medical X-ray tubes, including a connecting pipe device 1, a detection device 2, and a data acquisition and processing system 3. The connecting pipe device 1 has a supporting beam 10 and a clamping assembly 11 mounted on the supporting beam 10 for clamping and fixing the medical X-ray tube to be tested. The supporting beam 10 can drive the clamping assembly 11 to swing horizontally, enabling the clamping assembly 11 to reciprocate between the upper / lower material position and the testing position. The detection device 2 has a vertically mounted support 20 next to the testing position and several probes spaced downwards on the support 20. The detector 21, the support 20, can rotate around the test position, thereby driving the detectors 21 to perform leakage radiation testing on the entire spherical surface of the medical X-ray tube placed in the test position; the data acquisition and processing system 3 has a plurality of acquisition components and a host computer 31, the plurality of acquisition components are respectively disposed on the plurality of detectors 21, and are used to acquire leakage radiation test information and position information of the plurality of detectors 21 respectively, and transmit the acquired leakage radiation test information and position information to the host computer 31; the host computer 31 processes and stores the received leakage radiation test information and position information.

[0039] Compared with existing technologies, 1) the automatic X-ray leakage testing equipment provided by this invention integrates functions such as "automatic loading and unloading", "automatic rotation detection", and "automatic acquisition and processing of X-ray leakage test information and position information". On the one hand, its high degree of automation and integration effectively replaces manual flipping operations, which reduces the labor intensity of operators and improves testing efficiency, testing accuracy and safety during testing, ensuring that medical X-ray tubes meet the requirements of medical device safety testing regulations. On the other hand, it can accurately identify the X-ray leakage location on the medical X-ray tube, further improving the accuracy of the test. 2) In the automatic leakage X-ray testing equipment provided by this invention, ① the structural configuration of the connecting pipe device facilitates loading and unloading operations and testing operations, and the layout of the loading and unloading positions and testing positions can be adjusted according to the working environment, making it highly adaptable; ② the detection device adopts a rotary detection method, that is, after the support and the detector on it rotate one revolution, the entire spherical surface of the medical X-ray tube can be tested for leakage X-rays without flipping the medical X-ray tube, which not only improves testing efficiency, but also reduces the technical requirements of the connecting pipe device on the stability of the medical X-ray tube (i.e., reduces the structural design requirements of the connecting pipe device), and avoids the safety hazards of manual flipping; ③ the data acquisition and processing system has a fast response speed and a fast data transmission speed, which improves the stability and real-time performance of the system operation, as well as the accuracy of the system operation, thereby enabling accurate identification of the leakage X-ray location on the medical X-ray tube and improving the accuracy of the test results.

[0040] The specific structures of the pipe-connecting device 1, the detection device 2, and the data acquisition and processing system 3 of the present invention will be described in detail below.

[0041] First, the specific structure of the connecting pipe device 1 will be described in detail.

[0042] Please see the appendix Figure 2 To be continued Figure 6 As shown, in the structure of the connecting pipe device 1, the clamping assembly 11 has a mounting plate 110, a hanging plate 111, a pressure plate 112, and a driving member A. The mounting plate 110 is fixedly mounted on the supporting beam 10, the hanging plate 111 is fixedly mounted on the mounting plate 110, and the hanging plate 111 can be used to hang the medical X-ray tube to be tested. The pressure plate 112 is movable up and down on the mounting plate 110, and the pressure plate 112 is also located above the hanging plate 111. The driving member A can drive the pressure plate 112 to move closer to or away from the hanging plate 111, so that the pressure plate 112 can press and fix or loosen the medical X-ray tube hanging on the hanging plate 111. As can be seen from the above, on the one hand, the clamping component can automatically lock or release the medical X-ray tube, which is convenient and stable to operate; on the other hand, the clamping component can hang and position medical X-ray tubes of various specifications and models, which has good versatility.

[0043] Further preferably, both the mounting plate 111 and the pressure plate 112 are made of a material that combines wear resistance and high-energy radiation resistance, and the material is selected from any one of Teflon, polyamide-imide (PAI), and polysulfone resin (PSU). These materials not only extend service life but also effectively avoid the shielding problems of conventional materials, thus improving the accuracy of testing medical X-ray tubes.

[0044] A further preferred embodiment of the mounting structure for the hanging plate 111, the pressure plate 112, and the driving component A is as follows: the hanging plate 111 is an inverted L-shape and is fixedly mounted on the bottom side of the mounting plate 110 facing away from the supporting crossbeam 10. Based on the structure of the hanging plate 111, only an inverted L-shaped hanger needs to be fixed to the medical X-ray tube to hang it on the hanging plate 111. This is not only easy to manufacture and implement, but also has low implementation costs and can be used for various specifications and models of medical X-ray tubes.

[0045] A vertically extending groove is provided on the side of the mounting plate 110 facing away from the supporting crossbeam 10; the pressure plate 112 is flat and slidably connected to the groove.

[0046] The drive component A has a cylinder, the cylinder body of which is fixedly mounted on the mounting plate 110, and the piston rod of which is fixedly connected to the pressure plate 112. Of course, ① besides the cylinder, the drive component A can also use other mechanisms, such as a "motor and lead screw module combination" or a "cam lifting drive mechanism," etc., depending on the equipment requirements. ② Note: In the drive component A, and the drive components B and C described below, "A, B, C," etc., are only used to distinguish the components and do not have any limiting meaning.

[0047] Furthermore, in the structure of the connecting pipe device 1, the structure that enables the bearing beam 10 to drive the clamping assembly 11 to swing horizontally is as follows: (See attached document) Figure 5 and 6 As shown, the supporting beam 10 is a horizontal strip, and the mounting plate 110 is fixedly installed on one side of its length direction; the connecting pipe device 1 also has a base 12, a rotating spindle 13 and a driving component B. The base 12 is a hollow structure. The rotating spindle 13 is rotatably mounted in the base 12 through bearing components, and the central axis of the rotating spindle 13 extends vertically. The rotating spindle 13 is also fixedly connected to the other side of the supporting beam 10 in the length direction. The driving component B can drive the rotating spindle 13 to rotate around its own central axis.

[0048] Further preferably, according to the equipment design requirements, the drive component B can be a combination of a servo motor and a gear set. Specifically, the gear set includes two meshing gears, and the two gears are respectively fixedly mounted on the rotating main shaft 13 and the power output shaft of the servo motor; or, the drive component B can also be a combination of a servo motor and a synchronous pulley assembly. Specifically, the synchronous pulley assembly has two synchronous pulleys and a synchronous belt. The two synchronous pulleys are respectively fixedly mounted on the rotating main shaft 13 and the power output shaft of the servo motor, and the two synchronous pulleys are also connected by the synchronous belt. Additional note: Because the servo motor has a built-in encoder, the rotation angle of the rotating main shaft 13, i.e., the horizontal swing amplitude of the supporting beam 10, can be precisely controlled by the encoder.

[0049] Further preferably, an opening 120 is provided on the side wall of the base 12 to allow the bearing beam 10 to swing, as shown in the appendix. Figure 5 As shown.

[0050] Further preferably, the automatic testing equipment also includes a frame 4, which has a column 40, and an upper crossbeam 41 and a lower base plate 42 respectively fixedly disposed on the upper and lower sides of the column 40 (see attached drawing). Figure 2 To be continued Figure 4 and appendices Figure 7 and8 (As shown); the base 12 is fixedly mounted on the column 40, or the base 12 is movably mounted on the column 40. In this case, the specific implementation structure is as follows: a vertically extending slide rail is fixedly laid on the column 40, and the base 12 is slidably mounted on the slide rail. A lifting drive mechanism is also provided, which can drive the base 12 to move and position vertically. The lifting drive mechanism can be a hydraulic cylinder, or a combination of a motor and a lead screw module, etc.

[0051] Further preferably, the supporting crossbeam 10 is also provided with a high-voltage cable socket 14 that can move along its length. The high-voltage cable socket 14 is used for plugging in the high-voltage cable plug of the medical X-ray tube (see Appendix). Figure 5 (As shown). Note: Because the medical X-ray tube described in this invention does not need to be flipped, the problem of disassembling and assembling the high-voltage cable can be avoided.

[0052] A further preferred embodiment of the structure for enabling the high-voltage cable socket 14 to move on the supporting beam 10 is as follows: the connecting pipe device 1 further includes a slide 15, which is slidably disposed on the supporting beam 10 along its length, and multiple high-voltage cable sockets 14 are disposed on the slide 15. This allows the positions of the slide 15 and the high-voltage cable sockets 14 to be adjusted according to the length of the high-voltage cable, thus providing excellent compatibility with medical X-ray tubes of different specifications.

[0053] In summary, the structural configuration of the aforementioned connector has the following advantages: ① The bearing beam 10 and the clamping assembly 11 can swing horizontally, which facilitates loading and unloading operations and testing operations. Furthermore, the layout of the loading / unloading positions and testing positions can be adjusted according to the working environment, making it highly adaptable. ② The clamping assembly 11 enables rapid and stable support of medical X-ray tubes of various specifications and models, effectively avoiding the problems of conventional materials blocking or shielding X-rays, as well as the problems of disassembling and assembling high-voltage cables, greatly improving the accuracy and efficiency of testing medical X-ray tubes.

[0054] Next, the specific structure of the detection device 2 will be described in detail.

[0055] Please see the appendix Figure 2 To be continued Figure 4 and appendices Figure 7 and 8As shown, in the structure of the detection device 2, the support 20 is a vertically arranged arc-shaped body, and the chordal surface of the support 20 coincides with the vertical center line of the test position and the vertical center line of the medical X-ray tube; the plurality of detectors 21 are all gas ionization detectors, and the plurality of detectors 21 are equidistantly arranged on the inner side of the support 20 facing the test position along the arc length direction of the support 20, and the plurality of detectors 21 are also arranged in a staggered manner; in addition, the detection device 2 also has a driving member C, which can drive the support 20 to rotate around the test position.

[0056] More preferably, the central angle of the bracket 20 is 180°, that is, the bracket 20 is semi-circular and has a radius of 1 meter; the detector 21 is a gas ionization detector manufactured by PTW in Germany, which is a commercially available product, so it will not be described in detail here.

[0057] A further preferred embodiment of the structure that enables the driving component C to drive the bracket 20 to rotate around the test position is as follows: the two ends of the bracket 20 in the arc length direction are respectively rotatably mounted on the upper crossbeam 41 and the lower base plate 42 via a rotating shaft 22, and the driving component C is capable of driving the rotating shaft 22 to rotate.

[0058] More preferably, the drive component C can be configured as one or two sets. The drive component C can be a combination of a servo motor and a gear set, specifically: the gear set includes two meshing gears, and the two gears are respectively fixedly mounted on a rotating shaft 22 and the power output shaft of the servo motor; or, the drive component B can also be a combination of a servo motor and a synchronous pulley assembly, specifically: the synchronous pulley assembly has two synchronous pulleys and a synchronous belt, the two synchronous pulleys are respectively fixedly mounted on a rotating shaft 22 and the power output shaft of the servo motor, and the two synchronous pulleys are also connected by the synchronous belt drive.

[0059] Additionally, it should be noted that the servo motor has a built-in encoder, which allows for precise control of the rotation of the bracket 20.

[0060] In addition, the detection device 2 also includes a locator 23, which is a laser position sensor and is fixedly installed on the inside of the bracket 20 facing the test position, for monitoring the position of the medical X-ray tube in the test position.

[0061] More preferably, there are three locators 23, respectively installed at the middle of the inner side of the bracket 20 and at both ends in the arc direction; that is, the distances from the three locators 23 to the center of the circle where the bracket 20 is located are equal. See the appendix for details. Figure 7 and 8 As shown.

[0062] In summary, the structural configuration of the detection device has the following advantages: ① By adopting a rotary detection method, that is, after the support 20 and the detector 21 on it rotate one revolution, the entire spherical surface of the medical X-ray tube can be tested for leakage radiation without flipping the medical X-ray tube. This not only improves testing efficiency but also reduces the technical requirements of the connector device on the stability of the medical X-ray tube (i.e., reduces the structural design requirements of the connector device) and avoids the safety hazards of manual flipping; ② The positioner 23 can be used to adjust the position of the medical X-ray tube in the detection position, ensuring the accuracy of the test.

[0063] Finally, the specific structure of the data acquisition and processing system 3 is described in detail.

[0064] Please see the appendix Figure 9 As shown, in the structure of the data acquisition and processing system 3, each acquisition component has an RFID reader 300 (which may be a V680S model) for reading the leakage test information of the detector 21 and a position sensor 301 for sensing the position information of the detector 21.

[0065] The data acquisition and processing system 3 also includes a PLC controller 32, which may be a Siemens S7-1200 model; several RFID readers 300 are respectively connected to the PLC controller 32 via the Modbus communication protocol, several position sensors 301 are respectively connected to the PLC controller 32 via serial ports, and the PLC controller 32 is also connected to the host computer 31 via the OPC communication protocol.

[0066] Preferably, the host computer 31 is equipped with KepServer software 310 and a data processor 311. The KepServer software 310 communicates with the PLC controller 32 via the OPC communication protocol. The KepServer software 310 can convert the leaky ray test information and location information transmitted from the PLC controller 32 into a format recognizable by the data processor 311, enabling the KepServer software 310 to interact with the data processor 311. The data processor 311 processes and saves the leaky ray test information and location information.

[0067] In summary, the data acquisition and processing system has the following advantages: by adopting OPC communication technology and Modbus communication technology, the system's response speed and data transmission speed can be greatly accelerated, which not only improves the stability and real-time performance of the system operation, but also improves the accuracy of the system operation. In this way, it can accurately identify the location of the leaking X-ray on the medical X-ray tube, thereby improving the accuracy of the test results.

[0068] The following describes the working method of the automatic testing device for leakage radiation in medical X-ray tubes according to the present invention.

[0069] The manufacturing method of the automatic leakage testing device for medical X-ray tubes described in this invention includes the following steps:

[0070] S1: Install the lead protective cover plate onto the window of the medical X-ray tube, wherein the lead protective cover plate is equipped with a hanging part that is connected and cooperates with the hanging plate 111;

[0071] S2: The supporting crossbeam 10 and the clamping assembly 11 on it are initially in the upper and lower material positions;

[0072] First, a robotic arm is used to hang the medical X-ray tube on the mounting plate 111. Then, the drive unit A is activated (which can be controlled by the PLC controller 32) to drive the pressure plate 112 to press firmly down onto the hanging device. Subsequently, the drive unit B is activated (which can also be controlled by the PLC controller 32) to drive the supporting beam 10 and the clamping assembly 11 on it, along with the medical X-ray tube, to move to the test position.

[0073] At that time, on the one hand, the high-voltage cable plug on the medical X-ray tube can be connected to the high-voltage cable socket 14 by a robotic arm or manually. On the other hand, the positioner 23 will monitor the position of the medical X-ray tube in the test position and feed back the position information of the medical X-ray tube to the PLC controller 32. The PLC controller 32 will then control the drive unit B to perform corresponding work to adjust the position of the medical X-ray tube.

[0074] S3: The drive unit C is activated (or controlled by the PLC controller 32), driving the bracket 20 and the plurality of detectors 21 on it to rotate around the test position, so as to perform a leakage radiation test on the entire spherical surface of the medical X-ray tube.

[0075] During the test, several RFID readers 300 will transmit the leakage test information of several detectors 21 that they read to the PLC controller 32, and several position sensors 301 will transmit the position information of several detectors 21 that they sense to the PLC controller 32.

[0076] S4: The PLC controller 32 transmits the leaky ray test information and location information of the several detectors 21 to the host computer 31. The host computer 31 processes and stores the received leaky ray test information and location information.

[0077] Note: Because there is a correlation between the leakage X-ray test information and the location information (the correlation body is "detector"), when an abnormality is found in a certain leakage X-ray test information, the corresponding detector 21 and the location of the detector 21 can be quickly found based on the leakage X-ray test information, and then the leakage X-ray location point on the medical X-ray tube can be obtained.

[0078] In summary, the automatic leakage testing equipment for medical X-ray tubes described in this invention can automatically, quickly, accurately, and safely complete leakage testing on medical X-ray tubes of various models and configurations, ensuring that the medical X-ray tubes meet the requirements of medical device safety testing regulations.

[0079] Many specific details have been set forth in the foregoing description to provide a thorough understanding of the present invention. However, the above description is merely a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. An automatic testing device for leakage radiation in medical X-ray tubes, characterized in that: It includes a pipe connection device (1), a detection device (2), and a data acquisition and processing system (3). The connecting pipe device (1) includes a horizontally elongated load-bearing beam (10), a clamping assembly (11), a base (12), a rotating spindle (13), a drive component B, and a high-voltage cable socket (14). The clamping assembly (11) includes a mounting plate (110), a hanging plate (111), a pressure plate (112), and a drive component A. The mounting plate (110) is fixedly mounted on one side of the load-bearing beam (10) along its length. Both the hanging plate (111) and the pressure plate (112) are made of materials that combine wear resistance and high-energy radiation resistance. The material is selected from any one of Teflon, polyamide-imide, and polysulfone resin. The hanging plate (111) is fixed on the mounting plate (110), and the hanging plate (111) can be hooked and matched with the lead protective cover plate installed on the window of the medical X-ray tube. The pressure plate (112) is movable up and down on the mounting plate (110), and the pressure plate (112) is also located above the hanging plate (111). The driving component A can drive the pressure plate (112) to move closer to or away from the hanging plate (111), so that the pressure plate... The plate (112) presses and fixes or loosens the medical X-ray tube hanging on the mounting plate (111); the base (12) is a hollow structure, the rotating spindle (13) is rotatably disposed in the base (12), and the central axis of the rotating spindle (13) extends vertically. The rotating spindle (13) is also fixedly connected to the other side of the bearing beam (10) along its length. The driving component B can drive the rotating spindle (13) to rotate around its own central axis, so that the bearing beam (10) can drive the clamping assembly. (11) Perform horizontal swing to enable the clamping assembly (11) to reciprocate between the upper and lower material positions and the test position; the high-voltage cable socket (14) is movable along the length direction of the bearing beam (10) and is disposed on the bearing beam (10), and the high-voltage cable socket (14) is used for the high-voltage cable plug of the medical X-ray tube to be inserted; in addition, the medical X-ray tube can be hung on the hanging plate (111) by a robot arm, and the high-voltage cable plug of the medical X-ray tube can be inserted into the high-voltage cable socket (14); The detection device (2) has a support (20) vertically arranged next to the test position, a plurality of detectors (21) spaced from top to bottom on the support (20), and a locator (23). The support (20) can rotate around the test position, thereby driving the plurality of detectors (21) to perform a leakage test on the entire spherical surface of the medical X-ray tube placed in the test position. The locator (23) is fixedly arranged on the inner side of the support (20) facing the test position, and is used to monitor the position of the medical X-ray tube in the test position. The data acquisition and processing system (3) has several acquisition components and a host computer (31). The acquisition components are respectively set on several detectors (21). Each acquisition component has an RFID reader (300) for reading the leakage test information of the detector (21) and a position sensor (301) for sensing the position information of the detector (21). Each acquisition component also transmits the acquired leakage test information and position information to the host computer (31). The host computer (31) processes and stores the received leakage test information and position information.

2. The automatic testing device for leakage radiation in medical X-ray tubes according to claim 1, characterized in that: The mounting plate (110) has a vertically extending groove on the side facing away from the bearing beam (10); the hanging plate (111) is inverted L-shaped and fixedly mounted on the bottom of the side of the mounting plate (110) facing away from the bearing beam (10); the pressure plate (112) is flat and slidably connected to the groove.

3. The automatic testing device for leakage radiation in medical X-ray tubes according to claim 1, characterized in that: The bracket (20) is a vertically arranged arc-shaped body, and the chordal surface of the bracket (20) coincides with the vertical center line of the test position; a plurality of detectors (21) are arranged at equal intervals along the arc length direction of the bracket (20) on the inner side of the bracket (20) facing the test position. In addition, the detection device (2) also has a drive component C, which can drive the bracket (20) to rotate around the test position.

4. The automatic testing device for leakage radiation in medical X-ray tubes according to claim 3, characterized in that: The automatic testing equipment also includes a frame (4), which has a column (40) and an upper crossbeam (41) and a lower base plate (42) respectively fixed on the upper and lower sides of the column (40). The base (12) is fixedly mounted on the column (40), or the base (12) is mounted on the column (40) and can move up and down. The two ends of the bracket (20) along the arc length direction are rotatably mounted on the upper crossbeam (41) and the lower base plate (42) respectively via a rotating shaft (22), and the driving component C can drive the rotating shaft (22) to rotate.

5. The automatic testing device for leakage radiation in medical X-ray tubes according to claim 1, characterized in that: The data acquisition and processing system (3) also has a PLC controller (32), several RFID readers (300) are connected to the PLC controller (32) via Modbus communication protocol, several position sensors (301) are connected to the PLC controller (32) via serial port, and the PLC controller (32) is also connected to the host computer (31) via OPC communication protocol.

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