Test table and test system for the radiated immunity of active implantable devices

Abstract

The application discloses a test table and a test system for active implantable device radiation immunity, and the test table comprises a carrier table, a manipulator, a phantom and an antenna seat for placing an antenna which are arranged on the carrier table; wherein the manipulator can transfer the antenna between the antenna seat and a test frequency point, and the antenna is used for generating an electromagnetic field covering the phantom when located at the test frequency point. It can be seen that the manipulator is used for adjusting and replacing the antenna, compared with the manual adjustment mode, in a first aspect, the position adjustment does not need manual observation and judgment, and the speed and accuracy of the position adjustment of the antenna can be improved, and in a second aspect, the operator does not need to frequently enter a shielded room to operate the antenna, and only needs to remotely control the manipulator to operate, so that the test efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a test bench and test system for the radiation immunity of active implantable devices. Background Technology

[0002] Radiated immunity testing is an extremely important and practically significant test for active implantable medical devices. Poor immunity to electromagnetic radiation in active implantable medical devices can pose significant safety risks to patients in daily life. Radiated immunity testing covers a wide range of frequency bands, including communication frequencies of walkie-talkies / GSM phones / 3G phones / 4G phones / 2.4GHz Wi-Fi / Bluetooth, base station transmission frequencies, etc. Dipole antennas are required for radiated immunity testing; the length of the dipole antenna varies depending on the test frequency, and the distance between the antenna and the device needs to be adjusted according to different test levels.

[0003] In related technologies, radiation immunity testing of active implantable devices is always performed manually. In actual testing, the need for manual judgment of antenna distance and adjustment of antenna length, as well as manual observation and judgment of sample output signals, can lead to significant inaccuracies and fluctuations in the test level. Furthermore, each test requires multiple manual operations such as opening and closing the shielded room (entering and exiting the shielded room), antenna replacement, and antenna length adjustment. Each test also necessitates manual adjustment of the antenna-device distance based on the sample, resulting in low testing efficiency.

[0004] In summary, the manual operation method for testing the radiation immunity of active implantable devices in related technologies will lead to low accuracy of test results, and the test steps are cumbersome and inefficient. Utility Model Content

[0005] This utility model is made to solve the above-mentioned technical problems. Its purpose is to provide a test bench and test system for the radiation immunity of active implantable devices, which can solve the problems of poor accuracy and efficiency in the radiation immunity test of active implantable devices in related technologies.

[0006] In a first aspect, this application discloses a test stand for the radiation immunity of an active implantable device, comprising: a stage; a robotic arm, a phantom, and an antenna mount for placing an antenna on the stage; wherein the robotic arm is capable of moving the antenna between the antenna mount and a test frequency, and the antenna is used to generate an electromagnetic field covering the phantom when located at the test frequency.

[0007] Optionally, the antenna includes an antenna body and an antenna arm that are connected to each other. When the antenna is located on an antenna mount, the antenna mount can limit the antenna along the extension and retraction direction of the antenna arm, and the robot arm can adjust the length of the antenna arm.

[0008] Optionally, the robotic arm includes a multi-axis robotic arm and grippers connected to each other, with the grippers being paired; an auxiliary clamping device is installed on the antenna body, one of the grippers and the auxiliary clamping device having a protrusion, and the other having a mating hole corresponding to the protrusion, the paired grippers being able to approach each other so that the protrusion is accommodated in the mating hole, and the paired grippers being able to move away from each other so that the protrusion is separated from the mating hole.

[0009] Optionally, the protrusion provides a mating groove, and the paired grippers can approach each other so that the mating groove of one upper gripper and the mating groove of the other upper gripper form a hole area for covering the antenna arm. When the mating groove of the paired grippers forms a hole area for covering the antenna arm, the robot can adjust the length of the antenna arm.

[0010] Optionally, the antenna mount includes a mount body and a first limiting plate disposed on the mount body. The first limiting plate is provided with a first limiting groove. When the antenna is located on the antenna mount, the antenna body is located in the first limiting groove so that the first limiting plate limits the antenna body through the first limiting groove along the extension and retraction direction of the antenna arm.

[0011] Optionally, the base is also provided with a second limiting plate, and a second limiting groove is provided on the second limiting plate. When the antenna is located on the antenna base, the antenna arm is located in the second limiting groove so that the second limiting plate limits the antenna arm through the second limiting groove along the extension direction of the antenna body.

[0012] Optionally, a support block is installed on the antenna body. When the antenna is placed on the antenna mount, the support block fits against the end face of the antenna mount, and at least a portion of the support block is positioned between the antenna body and the antenna mount.

[0013] Optionally, the support block is flexible.

[0014] Optionally, multiple antenna mounts are provided, and the robotic arm is located in the area enclosed by the multiple antenna mounts and the phantom.

[0015] Optionally, one antenna mount is located in the multi-frequency operation area of ​​the robot and is used to place an antenna with several test frequencies; along the length of the stage, the antenna mount, robot, and phantom in the multi-frequency operation area are arranged in sequence and are all located in the center position of the stage; the antenna arm length of the antenna that can be placed in the multi-frequency operation area can be adjusted according to the required test frequencies.

[0016] Optionally, the platform includes a box and an insulating plate stacked in sequence, with the robot, phantom and antenna mount located on the side of the insulating plate away from the box.

[0017] Secondly, this application discloses a testing system for the radiation immunity of an active implantable device, comprising: a test bench; a host computer, which is communicatively connected to a robotic arm; a radio frequency signal source for receiving test signal parameters from the host computer and transmitting radio frequency signals to an antenna, the radio frequency signal source being connected to both the host computer and the antenna; a power meter for detecting the power of the radio frequency signals emitted by the radio frequency signal source and feeding the monitored power back to the host computer, the power meter being connected to both the host computer and the antenna; a function signal source for transmitting simulated physiological signals to a phantom, the function signal source being connected to both the host computer and the phantom; and an oscilloscope for detecting and receiving pulse signals emitted by the phantom, the oscilloscope being connected to both the host computer and the phantom.

[0018] This application has the following advantages:

[0019] This application discloses a test bench for the radiated immunity of active implantable devices, comprising: a stage; a robotic arm, a phantom, and an antenna mount for placing an antenna, all mounted on the stage; wherein the robotic arm is capable of moving the antenna between the antenna mount and a test frequency, and the antenna is used to generate an electromagnetic field covering the phantom when located at the test frequency. It can be seen that this application uses a robotic arm to adjust and replace the antenna position. Compared with manual adjustment, firstly, the adjustment position does not require manual observation and judgment, which can improve the speed and accuracy of antenna position adjustment; secondly, the operator does not need to frequently enter the shielded room to operate the antenna, but only needs to remotely control the robotic arm, thereby improving testing efficiency. Attached Figure Description

[0020] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0021] Figure 1 This is a structural diagram of the test bench of this utility model;

[0022] Figure 2 This is a structural diagram of the antenna mount of this utility model;

[0023] Figure 3 This is a schematic diagram of the testing system of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100-platform,

[0026] 110 - Enclosure, 111 - Interface, 120 - Insulation board

[0027] 200-robotic arm

[0028] 210 - Multi-axis robotic arm, 220 - Gripper, 221 - Protrusion, 222 - Mating groove, 201 - Multi-frequency operation area

[0029] 300-body model

[0030] 400-antenna

[0031] 410 - Antenna body, 420 - Antenna arm, 421 - Antenna head

[0032] 500-antenna mount,

[0033] 510 - Seat, 520 - First limiting plate, 530 - Second limiting plate

[0034] 610 - Auxiliary clamping device, 611 - Mating hole, 620 - Support block,

[0035] 700 - Host computer, 800 - Radio frequency signal source, 900 - Power meter, 1000 - Function signal source, 1100 - Oscilloscope. Detailed Implementation

[0036] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0037] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be construed as limiting the scope of protection of this utility model.

[0038] The following is combined Figures 1-3 This application is hereby introduced.

[0039] This application discloses a test bench for the radiation immunity of active implantable devices. These active implantable devices require electrical or pneumatic actuation, and include various medical electrical devices, electrocardiogram monitors, ventilators, anesthesia machines, implantable pacemakers, implantable cardioverter defibrillators, implantable neurostimulators, and high-frequency surgical equipment. Since the testing needs to be conducted in an electromagnetic radiation environment, the test bench is typically placed in a shielded room. The main components of the test bench include a platform 100, a robotic arm 200, a phantom 300, an antenna 400, and an antenna mount 500.

[0040] The stage 100 serves as the support and mounting base for the test platform. The robotic arm 200, phantom 300, and antenna mount 500 are all mounted on the stage 100. The phantom 300, also known as a water phantom in radiology, is a phantom of various shapes made of special materials and substances, capable of being scanned under magnetic resonance imaging (MRI) to obtain the images required by the user. The phantom 300 ensures that scanning can be performed even without a human patient, primarily for various acceptance and quality control tests. Different phantoms 300 can be selected for different tests and purposes. The phantom 300 is used to hold the sample being tested, which can be an implantable cardiac pacemaker, implantable cardioverter defibrillator, implantable neurostimulator, or other active implantable devices. The antenna mount 500 is used to house the antenna 400, which can be a dipole antenna.

[0041] The robotic arm 200 can not only replace the antenna 400, but also move the antenna 400 between the antenna mount 500 and the test frequency point during operation. The test frequency point is located directly above the phantom 300. When the antenna 400 is located at the test frequency point, it can generate an electromagnetic field that covers the phantom 300. This allows for radiation immunity tests to be conducted in electromagnetic field radiation scenarios, thereby obtaining test data.

[0042] As can be seen, this application uses a robotic arm 200 to adjust and replace the antenna 400. Compared with manual adjustment, firstly, the adjustment of the position does not require manual observation and judgment, which can improve the speed and accuracy of the antenna 400's position adjustment. Secondly, the operator does not need to frequently enter the shielded room to operate the antenna 400, but only needs to remotely control the robotic arm 200 to operate it, thereby improving the testing efficiency.

[0043] Optionally, the antenna 400 includes an antenna body 410 and an antenna arm 420 connected to each other. When the antenna 400 is located on the antenna mount 500, the antenna mount 500 can limit the antenna 400 along the extension and retraction direction of the antenna arm 420, so that the robot arm 200 can adjust the length of the antenna arm 420. In this way, by limiting the antenna 400 through the antenna mount 500, the robot arm 200 can not only adjust and replace the position of the antenna 400, but also adjust the length of the antenna arm 420, thus enriching the function of the robot arm 200 to better meet the testing requirements of radiated immunity.

[0044] Optionally, the robotic arm 200 includes a multi-axis robotic arm 210 and grippers 220 connected to each other. The grippers 220 are paired together, and the multi-axis robotic arm 210 can achieve multiple degrees of freedom of movement, thereby enabling flexible adjustment of the position and orientation of the grippers 220 in space. An auxiliary clamping device 610 is installed on the antenna body 410. One of the grippers 220 and the auxiliary clamping device 610 has a protrusion 221, and the other has a corresponding mating hole 611 for the protrusion 221. For example, the gripper 220 has a protrusion 221 and the auxiliary clamping device 610 has a mating hole 611, or the gripper 220 has a mating hole 611 and the auxiliary clamping device 610 has a protrusion 221.

[0045] The paired grippers 220 can approach each other so that the protrusion 221 can be accommodated in the mating hole 611. This allows the robotic arm 200 to grip the antenna 400 via the auxiliary gripping device 610, preventing damage to the antenna 400 from direct gripping. Secondly, the design of the protrusion 221 and the mating hole 611 improves the gripping stability of the robotic arm 200 on the auxiliary gripping device 610 during antenna 400 replacement or repositioning, preventing the auxiliary gripping device 610 from slipping off the robotic arm 200 and enabling effective adjustment of the antenna 400's position. Simultaneously, the paired grippers 220 can also move away from each other so that the protrusion 221 separates from the mating hole 611, thereby separating the robotic arm 200 from the auxiliary gripping device 610.

[0046] Furthermore, the cross-sectional shape of the mating hole 611 can be arbitrary. In this application, the cross-section of the mating hole 611 is set to rectangular, and the protrusion 221 is a shape adapted to the mating hole 611, such as having a rectangular outer contour. Thus, when the robotic arm 200 grips the auxiliary gripping device 610, the rectangular design enables the protrusion 221 and the mating hole 611 to mutually limit each other, preventing the auxiliary gripping device 610 from swinging around the protrusion 221. This further improves gripping stability and the spatial stability of the antenna 400. Of course, the cross-section of the mating hole 611 can also be triangular or pentagonal, with the protrusion 221 having a shape adapted to the mating hole 611 to prevent the auxiliary gripping device 610 from swinging; this will not be elaborated further here.

[0047] Optionally, the protrusion 221 is provided with a mating groove 222, and the paired grippers 220 can approach each other so that the mating groove 222 of one upper gripper 220 and the mating groove 222 of the other upper gripper 220 form a hole area for covering the antenna arm 420. When the mating groove 222 of the paired grippers 220 forms a hole area for covering the antenna arm 420, the robot arm 200 can adjust the length of the antenna arm 420.

[0048] Specifically, the antenna arm 420 is composed of multiple antenna segments of different diameters that are sequentially and movably fitted from the inside out. By extending and retracting the antenna segments, the length of the antenna arm 420 can be adjusted. The hole area enclosed by the grippers 220 is actually used to cover the antenna segment to be pulled. Specifically, when the diameter of the antenna segment to be pulled is larger than the hole area, the two grippers 220 effectively clamp the antenna segment through the protrusions 221. The covering method of the hole area can achieve full contact with the periphery of the antenna segment, improve the clamping force on the antenna segment, and thus achieve full pulling of the antenna segment to effectively adjust the length of the antenna arm 420.

[0049] When the diameter of the antenna segment that needs to be pulled is smaller than the hole area enclosed by the gripper 220, such as an antenna segment with an antenna head 421, its diameter can be smaller than the diameter of the hole area. In this way, when the gripper 220 approaches, the gripper 220 can fully pull the antenna segment by abutting against the antenna head 421, so as to effectively adjust the length of the antenna arm 420.

[0050] In summary, the method of setting the mating groove 222 on the protrusion 221 not only facilitates the robot arm 200 to adjust the position of the antenna 400, but also facilitates the robot arm 200 to adjust the length of the antenna arm 420, thus realizing the reuse of the protrusion 221.

[0051] Optionally, the antenna mount 500 includes a mount 510 and a first limiting plate 520 disposed on the mount 510. The first limiting plate 520 is provided with a first limiting groove. When the antenna 400 is located on the antenna mount 500, the antenna body 410 is located in the first limiting groove, so that the first limiting plate 520 limits the antenna body 410 through the first limiting groove along the extension and retraction direction of the antenna arm 420. In this way, under the limiting action of the first limiting plate 520, the antenna mount 500 can be prevented from shaking when the length of the antenna arm 420 is adjusted by the pulling action of the robot arm 200, thus ensuring the stability of the antenna mount 500 when pulled by the robot arm 200.

[0052] Optionally, multiple first limiting plates 520 can be provided, and multiple first limiting plates 520 are used for placing the antenna body 410, so as to better stop and limit the antenna body 410.

[0053] Optionally, the base 510 is further provided with a second limiting plate 530, which corresponds one-to-one with the antenna arm 420. The second limiting plate 530 is provided with a second limiting groove. When the antenna 400 is located on the antenna base 500, the antenna arm 420 is located in the second limiting groove, so that the second limiting plate 530 limits the antenna arm 420 through the second limiting groove along the extension direction of the antenna body 410. The extension and retraction direction of the antenna arm 420 is different from the extension direction of the antenna body 410. For example, the extension and retraction direction of the antenna arm 420 is the width direction of the antenna base 500, and the extension direction of the antenna body 410 is the length direction of the antenna base 500. In this way, the antenna base 500 can limit the antenna 400 in two different directions at the same time, improving the stability of the antenna 400 placed on the antenna base 500, and more effectively avoiding abnormalities such as positional movement of the antenna 400 when the robot arm 200 pulls the antenna arm 420 to adjust its length.

[0054] Optionally, a support block 620 is fitted onto the antenna body 410. When the antenna 400 is placed on the antenna base 500, the support block 620 fits against the end face of the antenna base 500, and at least part of the support block 620 is provided between the antenna body 410 and the antenna base 500.

[0055] The support block 620 serves two purposes. First, it allows the support block 620 to directly contact the antenna base 500 when the antenna 400 is placed back into the antenna base 500, thereby reducing the force exerted by the antenna base 500 on the antenna 400. Second, when the antenna 400 is not in use or is used for other purposes, it can be removed from the antenna base 500 and placed on a table, desk, or other surface, with the support block 620 providing fixed support for the antenna 400.

[0056] Furthermore, multiple support blocks 620 are arranged along the extension direction of the antenna body 410, and one of the support blocks 620 is located near the intersection of the antenna body 410 and the antenna arm 420. The auxiliary clamping device 610 is located on top of the support block 620 near the antenna arm 420. The intersection of the antenna body 410 and the antenna arm 420 is the location of the center of gravity of the antenna 400. In this way, on the one hand, the support block 620 can be reused, as it is used both to support and fix the antenna 400 and to install the auxiliary clamping device 610. On the other hand, the installation position of the auxiliary clamping device 610 corresponds to the center of gravity of the antenna 400. This ensures that the antenna 400 is in a relatively stable state when the robot arm 200 lifts it, preventing the antenna 400 from tilting or other abnormalities in space due to its own weight.

[0057] Furthermore, the support block 620 is flexible, so that when the antenna 400 is placed back into the antenna mount 500, on the table, or on the platform, the support block 620 can buffer the reaction force, thereby reducing the stress on the antenna 400 and playing a buffering and protective role for the antenna 400.

[0058] Optionally, multiple antenna mounts 500 are provided, and the robot arm 200 is located in the area enclosed by the multiple antenna mounts 500 and the phantom 300. Different samples to be tested within the phantom 300 require different frequency bands, and the number of antennas 400 required varies depending on the frequency band. Specifically, the narrower the test frequency band, the fewer antennas 400 are needed. The arrangement of multiple antenna mounts 500 can meet the needs of various samples to be tested, and also improves the utilization rate of the test platform. Furthermore, compared to placing multiple antenna mounts 500 on one side, the arrangement of multiple antenna mounts 500 and the phantom 300 around the robot arm 200 results in a shorter overall movement path for the robot arm 200, improving testing efficiency.

[0059] Optionally, one antenna mount 500 is located in the multi-frequency operation area 201 of the robot arm 200 and is used to place the antenna 400 with several test frequencies. Along the length of the stage 100, the antenna mount 500, robot arm 200, and phantom 300 are arranged sequentially in the multi-frequency operation area 201, and are all located at the center of the stage 100. The antenna 400, which can be placed in the multi-frequency operation area 201, has an antenna arm 420 length that can be adjusted according to the required test frequencies. This arrangement is based on the following considerations:

[0060] For the antenna 400 in the multi-frequency operation area 201, since it has multiple test frequencies, after each test frequency is completed, it needs to be retrieved and placed back on the antenna mount 500, and the length of the antenna arm 420 needs to be adjusted before the next test frequency can be tested. Therefore, the multi-frequency operation area 201 is set at the center position of the stage 100 and corresponding to the robot arm 200. This way, the operation path of the robot arm 200 is short, the adjusted length of the antenna arm 420 will not affect the worktable, and the multi-axis robot arm 210 will not exceed the worktable when it moves, thus improving the ease of operation of the antenna 400 in the multi-frequency operation area 201.

[0061] Optionally, the platform 100 includes a box 110 and an insulating plate 120 stacked sequentially. The robot arm 200, the phantom 300, and the antenna mount 500 are all located on the side of the insulating plate 120 away from the box 110. The insulating plate 120 can be made of marble. The insulating plate 120 serves several purposes: First, it prevents interference from other metal devices in the box 110 with the electromagnetic field emitted by the antenna 400, thus protecting the electromagnetic field. Second, the insulating plate 120 has stable precision, and its platform plane ensures sufficient flatness and weight so that the robot arm 200 can exert its own load-bearing capacity during movement, thereby ensuring the smooth movement of the robot arm 200. Marble insulating plate is particularly preferred. Third, it can prevent corrosion caused by the overflow of salt solution in the phantom 300, thereby improving the service life of the platform 100.

[0062] Furthermore, the housing 110 is provided with an interface 111, which facilitates the connection of external devices to components such as the robotic arm 200 and the model 300 via the interface 111.

[0063] This application also discloses a testing system for the radiation immunity of active implantable devices, including the aforementioned test bench, host computer 700, radio frequency signal source 800, power meter 900, function signal source 1000, and oscilloscope 1100. The host computer 700, radio frequency signal source 800, power meter 900, function signal source 1000, and oscilloscope 1100 are all located outside a shielded room and are connected to the robotic arm 200 and the phantom via interface 111, as detailed below:

[0064] The host computer 700 is connected to the robotic arm 200 for communication. It is used to send command strings to the robotic arm 200 to control its movements. Specifically, the host computer 700 has integrated test programs for various instruments to be tested. The tester selects the instrument type on the host computer 700, and the host computer 700 will automatically use the robotic arm 200 to grab the required antenna 400 and adjust the position of the antenna 400, the length of the antenna arm 420, etc.

[0065] The radio frequency signal source 800 is connected to the host computer 700 and the antenna 400 respectively. The radio frequency signal source 800 is used to receive the test signal parameters sent by the host computer 700 and transmit the radio frequency signal to the antenna 400.

[0066] The power meter 900 is connected to the host computer 700 and the antenna 400 respectively. The power meter 900 is used to monitor the power of the radio frequency signal emitted by the radio frequency signal source 800 and feed the monitored power back to the host computer 700.

[0067] The function signal source 1000 is connected to the host computer 700 and the phantom 300 respectively. The function signal source 1000 is used to send simulated physiological signals to the phantom 300. The simulated physiological signals are used to simulate various working states of the device when it is actually used by the patient, so as to conduct radiation immunity tests on various working states of the active medical device.

[0068] The oscilloscope 1100 is connected to the host computer 700 and the phantom 300 respectively. The oscilloscope 1100 is used to detect the pulse signal emitted by the phantom 300.

[0069] The testing system operates according to the following steps:

[0070] The host computer 700 sends a command string to the robotic arm 200, which performs corresponding actions based on the command string, including grasping the appropriate antenna 400, placing the antenna 400 at the appropriate test frequency, and adjusting the length of the antenna arm 420. In this way, the antenna 400 emits the required electromagnetic waves to the phantom 300 to complete the radiation immunity test.

[0071] The host computer 700 sends test signal parameters to the radio frequency signal source 800. The radio frequency signal source 800 generates a radio frequency signal and sends it to the antenna 400. The power meter 900 receives the power data fed back by the radio frequency signal source 800 and feeds back the forward power and reverse power to the host computer 700. After calculating the net power value, the host computer 700 dynamically adjusts the signal amplitude emitted by the radio frequency signal source 800 if it does not meet the standard requirements until the accurate net power value is reached. The net power value is calculated as forward power minus reverse power.

[0072] The host computer 700 sends a signal to the function signal source 1000 and controls the function signal source 1000 to send simulated physiological signals to the phantom 300.

[0073] After receiving the simulated physiological signal, the pulse waveform output by the test sample in the phantom 300 will be transmitted to the oscilloscope 1100. The host computer 700 reads the pulse waveform acquired by the oscilloscope 1100 and automatically performs analysis and result judgment.

[0074] The host computer 700 sends a command string to the robotic arm 200, and the robotic arm 200 completes the return operation of the antenna 400.

[0075] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible variations and modifications without departing from the spirit and scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A test bench for the radiation immunity of active implantable medical devices, characterized in that, include: Platform (100); The robotic arm (200), the phantom (300), and the antenna mount (500) for placing the antenna (400) are mounted on the platform (100). The robotic arm (200) is capable of moving the antenna (400) between the antenna mount (500) and the test frequency point. The antenna (400) is used to generate an electromagnetic field covering the phantom (300) when the test frequency is located.

2. The test bench according to claim 1, characterized in that, The antenna (400) includes an antenna body (410) and an antenna arm (420) that are connected to each other. When the antenna (400) is located on the antenna mount (500), the antenna mount (500) can limit the antenna (400) along the extension and retraction direction of the antenna arm (420), and the robot (200) can adjust the length of the antenna arm (420).

3. The test stand according to claim 2, characterized in that, The robotic arm (200) includes a multi-axis robotic arm (210) and grippers (220) connected to each other, the grippers (220) being paired together; An auxiliary clamping device (610) is installed on the antenna body (410). One of the clamps (220) and the auxiliary clamping device (610) is provided with a protrusion (221), and the other is provided with a mating hole (611) corresponding to the protrusion (221). The mating jaws (220) are able to approach each other so that the protrusion (221) is received into the mating hole (611), and, The mating jaws (220) can move away from each other so that the protrusion (221) separates from the mating hole (611).

4. The test stand according to claim 3, characterized in that, The protrusion (221) is provided with a mating groove (222), and the paired grippers (220) can approach each other so that the mating groove (222) of one gripper (220) and the mating groove (222) of the other gripper (220) form a hole area for covering the antenna arm (420). With the mating grooves (222) of the paired grippers (220) forming a hole area for covering the antenna arm (420), the robot (200) is able to adjust the length of the antenna arm (420).

5. The test stand according to claim 2, characterized in that, The antenna mount (500) includes a mount body (510) and a first limiting plate (520) disposed on the mount body (510), wherein a first limiting groove is provided on the first limiting plate (520). When the antenna (400) is located on the antenna mount (500), the antenna body (410) is located in the first limiting groove so that the first limiting plate (520) limits the antenna body (410) through the first limiting groove along the extension and retraction direction of the antenna arm (420).

6. The test stand according to claim 5, characterized in that, The base (510) is also provided with a second limiting plate (530), and the second limiting plate (530) is provided with a second limiting groove. When the antenna (400) is located on the antenna mount (500), the antenna arm (420) is located in the second limiting groove so that the second limiting plate (530) limits the antenna arm (420) through the second limiting groove along the extension direction of the antenna body (410).

7. The test stand according to claim 1, characterized in that, A support block (620) is installed on the antenna body (410). When the antenna (400) is placed on the antenna mount (500), the support block (620) fits against the end face of the antenna mount (500), and at least a portion of the support block (620) is supported between the antenna body (410) and the antenna mount (500).

8. The test bench according to claim 7, characterized in that, The support block (620) is flexible.

9. The test stand according to claim 2, characterized in that, Multiple antenna mounts (500) are provided, and the robotic arm (200) is located in the area enclosed by the multiple antenna mounts (500) and the phantom (300).

10. The test stand according to claim 9, characterized in that, One of the antenna mounts (500) is located in the multi-frequency operation area (201) of the robotic arm (200) and is used to place the antenna (400) having a plurality of the test frequencies. Along the length of the platform (100), the antenna mount (500), the robotic arm (200) and the phantom (300) in the multi-frequency operation area (201) are arranged in sequence, and all are located at the center position of the platform (100). The antenna (400) that can be placed in the multi-frequency operation area (201) has an antenna arm (420) length that can be adjusted to adapt to the test frequency as needed.

11. The test stand according to claim 10, characterized in that, The platform (100) includes a box (110) and an insulating plate (120) stacked in sequence. The robotic arm (200), the phantom (300) and the antenna mount (500) are all located on the side of the insulating plate (120) away from the box (110).

12. A testing system for the radiation immunity of active implantable medical devices, characterized in that, include: The test bench as described in claims 1 to 11; A host computer (700) is communicatively connected to the robotic arm (200); A radio frequency signal source (800) is used to receive test signal parameters sent by the host computer (700) and send radio frequency signals to the antenna (400). The radio frequency signal source (800) is connected to the host computer (700) and the antenna (400) respectively. The power meter (900) is used to detect the power of the radio frequency signal emitted by the radio frequency signal source (800) and to feed back the monitored power to the host computer (700). The power meter (900) is connected to the host computer (700) and the antenna (400) respectively. A function signal source (1000) is used to send simulated physiological signals to the phantom (300), and the function signal source (1000) is connected to the host computer (700) and the phantom (300) respectively. An oscilloscope (1100) for detecting and receiving pulse signals emitted by the phantom (300) is connected to the host computer (700) and the phantom (300).

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