A detection tool for a medical imaging device

Abstract

The application relates to a detection tool for a medical imaging device, a carrier of the detection tool being directly or indirectly connected with a horizontal moving mechanism, a vertical moving mechanism and a carrier mounting frame, the carrier being capable of moving in horizontal and vertical directions under the drive of the mechanisms, and the carrier mounting frame being capable of enabling the carrier to be located away from the vertical moving mechanism, so that the detection range is prevented from being shielded. At least one of the horizontal moving mechanism and the vertical moving mechanism is provided with a driving assembly, so that the adjustment process is mechanically driven, the efficiency is greatly improved, the detection personnel is prevented from participating in the installation and adjustment of the detection tool for a long time, the detection personnel is prevented from working close to a radioactive source for a long time, the health of the detection personnel is ensured, and the probability of safety accidents is reduced.

Description

Technical Field

[0001] This application belongs to the field of medical device quality testing technology, and in particular relates to a testing tool for medical imaging equipment. Background Technology

[0002] According to the People's Republic of China Health Industry Standard "Quality Control and Testing Specification for Gamma Cameras and Single Photon Emission Tomography (SPECT) Equipment" WS 523—2019 (hereinafter referred to as the Testing Specification), newly installed or overhauled gamma cameras and SPECTs should be subject to acceptance testing by a qualified technical service organization before being put into use, or upon reaching the testing cycle (once a year). The pass / fail of the test indicators should be determined according to the factory standard. Indicators that are equal to or better than the factory standard are considered qualified. The equipment can only be put into use after all test indicators are confirmed to be qualified.

[0003] When performing quality inspection on SPECT, the source used for inspection is 99 Tc m The solution, contained in test tubes or ampoules, is a radioactive solution. In existing technologies, according to testing specifications, the radioactive source must be placed at a height of 1.5 meters and ensured to be centered on the detector. The commonly used auxiliary supports are manual tripods and manually detachable, spliced ​​aluminum tubes. Testing personnel need to manually adjust the tripod inside the testing room, including its horizontal position, extension height, and the installation angle of the radioactive source. This typically consumes a significant amount of installation and adjustment time for the testing personnel. Furthermore, prolonged proximity to the radioactive source poses health risks to the testing personnel. As they become fatigued, there is a risk of clamping errors leading to ampoule detachment and other safety accidents. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a testing tool for medical imaging equipment in order to overcome the shortcomings of the above-mentioned manual tripod adjustment scheme in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A detection tool for medical imaging equipment, comprising:

[0007] Lateral movement mechanism, used for horizontal movement;

[0008] A vertical moving mechanism, connected to the horizontal moving mechanism, is used for moving in the vertical direction;

[0009] A platform mounting frame is connected to the vertical moving mechanism;

[0010] A platform is connected to the end of the platform mounting frame away from the vertical moving mechanism;

[0011] A radioactive source, detachably mounted on the platform;

[0012] The lateral movement mechanism and / or the vertical movement mechanism includes a drive component.

[0013] In an optional embodiment, the detection tool for the medical imaging device further includes:

[0014] A power supply device, which is connected to the drive assembly, is used to provide the energy required for the drive assembly to drive.

[0015] A power supply control device includes a switch module, a communication module, and a remote controller. The switch module is connected to the power supply device and is used to control the timing when the power supply device supplies power to the drive component. The switch module is also connected to the communication module, and the remote controller can send signals to the communication module to control the switch module.

[0016] In an optional embodiment, the lateral movement mechanism includes:

[0017] Base;

[0018] A first drive assembly is mounted on the base;

[0019] A roller is rotatably mounted on the base and is connected to the first drive assembly, enabling it to roll under the drive of the first drive assembly.

[0020] In an optional embodiment, the detection tool for the medical imaging device further includes a guide rail into which the roller can be partially embedded to guide the movement direction of the roller.

[0021] In an optional embodiment, the vertical movement mechanism includes:

[0022] The support platform is fixed to the base;

[0023] The second drive assembly is installed on one side of the support platform;

[0024] A guide cylinder is fixed to the other side of the support platform, and the extension direction of the guide cylinder is perpendicular to the support platform.

[0025] A telescopic frame is installed inside the guide cylinder and can move along the extension direction of the guide cylinder. The top of the telescopic frame is connected to the platform mounting frame.

[0026] A transmission component connects the telescopic frame to the second drive assembly, enabling the telescopic frame to move under the drive of the second drive assembly.

[0027] In an optional embodiment, the transmission component includes a lead screw and a lead screw nut, the lead screw being connected to the second drive assembly, and the lead screw nut being sleeved on the lead screw and fixed to the telescopic frame.

[0028] In an optional embodiment, the platform mounting bracket includes:

[0029] A fixed base is fixed to the top of the vertical moving mechanism; the fixed base includes a fixing plate and a limiting block;

[0030] The rotating rod is hinged to the fixed plate;

[0031] The limiting block is used to abut against the rotating rod when it is rotated to a specific angle, so as to limit its rotation range.

[0032] In an optional embodiment, the stage has a slot for inserting and securing the ampoule assembly.

[0033] In an alternative embodiment, the drive assembly has a detachable plug for connecting a power supply device.

[0034] In an optional embodiment, the detection tool for the medical imaging device further includes a rangefinder fixed to the platform for measuring the height of the platform above the ground.

[0035] The beneficial effects of this invention are as follows: the platform is directly or indirectly connected to the horizontal moving mechanism, the vertical moving mechanism, and the platform mounting frame. The platform can move horizontally and vertically under the drive of these mechanisms. The platform mounting frame allows the platform to be positioned away from the vertical moving mechanism, preventing obstruction of the detection range. At least one of the horizontal and vertical moving mechanisms has a drive component, thus the adjustment process is mechanically driven, significantly improving efficiency. This avoids prolonged involvement of testing personnel in the installation and debugging of the testing tools, prevents testing personnel from working close to the radiation source for extended periods, protects the health of testing personnel, and reduces the probability of safety accidents. Attached Figure Description

[0036] The technical solution of this application will be further described below with reference to the accompanying drawings and embodiments.

[0037] Figure 1 This is a schematic diagram of the detection tool structure for a medical imaging device according to an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the lateral movement mechanism structure according to an embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the external structure of the vertical moving mechanism according to an embodiment of this application;

[0040] Figure 4This is a schematic diagram of the internal structure of the vertical moving mechanism according to an embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the platform mounting frame structure according to an embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the state of the detection tool for a medical imaging device when the adjustment is completed, according to an embodiment of this application;

[0043] Figure 7 This is a schematic diagram of the platform mounting frame structure according to an embodiment of this application;

[0044] Figure 8 This is a schematic diagram of the installation position of the rangefinder according to an embodiment of this application.

[0045] The attached figures are labeled as follows:

[0046] 1. Lateral movement mechanism; 11. Base; 12. First drive assembly; 13. Roller;

[0047] 2. Vertical moving mechanism; 21. Support platform; 22. Second drive assembly; 23. Guide cylinder; 24. Telescopic frame; 25. Transmission component; 251. Lead screw; 252. Lead screw nut;

[0048] 3. Platform mounting frame; 30. Fixing base; 301. Fixing plate; 302. Limiting block; 31. Rotating rod;

[0049] 4. Platform; 41. Slot;

[0050] 5. Detachable plug;

[0051] 6. Guide rail;

[0052] 7. Rangefinder. Detailed Implementation

[0053] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0054] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0055] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0056] The technical solution of this application will now be described in detail with reference to the accompanying drawings and embodiments.

[0057] This embodiment provides a detection tool for medical imaging equipment, such as... Figure 1 As shown, it includes: a horizontal moving mechanism 1, a vertical moving mechanism 2, a platform mounting frame 3, a platform 4, and a radiation source.

[0058] The stage 4 is used to load the radioactive source. When using the detection tool provided in this embodiment, the detection personnel fix the radioactive source on the stage 4.

[0059] The horizontal movement mechanism 1 is used for horizontal movement, adjusting the position of the radiation source in the detection chamber. The vertical movement mechanism 2 is connected to the horizontal movement mechanism 1 and is used for vertical movement, adjusting the radiation source to a suitable height above the ground. For example, current detection standards require a height above the ground of 1.5m or more; therefore, in this embodiment, the height above the ground of the platform 4 can be set to 1.5m. The platform mounting frame 3 is connected to the vertical movement mechanism 2, allowing the platform 4 to be positioned away from the vertical movement mechanism 2, preventing obstruction of the detection range. Since the platform 4 is connected to the platform mounting frame 3, the radiation source on the platform 4 is actually repositioned under the combined adjustment of the horizontal movement mechanism 1 and the vertical movement mechanism 2.

[0060] In the lateral movement mechanism 1 and the vertical movement mechanism 2, at least one of them includes a drive component, that is, part of the mechanism can be mechanically driven, which has higher adjustment efficiency and can reduce the time that the inspection personnel spend working near the radiation source.

[0061] like Figure 6 As shown, the testing tool for medical imaging equipment in this embodiment has its stage 4 adjusted by the lateral movement mechanism 1 and the vertical movement mechanism 2 to reach the ideal testing position for quality control testing of single-photon emission computed tomography (SPECT) equipment.

[0062] The detection tool for medical imaging equipment in this embodiment has a stage 4 directly or indirectly connected to a horizontal moving mechanism 1, a vertical moving mechanism 2, and a stage mounting frame 3. The stage 4 can move horizontally and vertically under the drive of each mechanism. The stage mounting frame 3 allows the stage 4 to be positioned away from the vertical moving mechanism 2, preventing obstruction of the detection range. At least one of the horizontal moving mechanism 1 and the vertical moving mechanism 2 has a drive component, thus the adjustment process is mechanically driven, significantly improving efficiency. This avoids prolonged involvement of personnel in the installation and debugging of the detection tool, prevents personnel from working close to radiation sources for extended periods, protects the health of personnel, and reduces the probability of safety accidents.

[0063] The detection tool for medical imaging equipment in this embodiment can meet the following detection items in the detection projects of gamma cameras and SPECT: 1. Inherent uniformity, 2. Inherent spatial resolution, 3. Inherent spatial linearity, 4. Inherent maximum count rate, 5. System spatial resolution, 6. Tomographic spatial resolution, 7. Spatial resolution of whole-body imaging systems.

[0064] In an optional embodiment, the detection tool for the medical imaging equipment further includes a power supply device and a power supply control device. The power supply device is connected to the drive component and provides the energy required for driving the drive component. The power supply control device includes a switch module, a communication module, and a remote controller. The switch module is connected to the power supply device and controls the timing of the power supply device supplying power to the drive component. The switch module is also connected to the communication module, and the remote controller can send signals to the communication module to control the switch module. The detection tool provided in this embodiment can be remotely adjusted. Therefore, when adjusting the detection tool, it can be placed inside the detection room, while the operator can adjust it outside the detection room using a remote controller. This eliminates the need for the operator to be near the radiation source, greatly improving safety.

[0065] Optionally, the power supply device may use a rechargeable battery to improve its portability and reusability.

[0066] In an alternative embodiment, such as Figure 2 As shown, the lateral movement mechanism 1 includes a base 11, a first drive assembly 12, and a roller 13. The first drive assembly 12 is mounted on the base 11; the roller 13 is rotatably mounted on the base 11 and connected to the first drive assembly 12, enabling it to roll under the drive of the first drive assembly 12. In this embodiment, the structure of the lateral movement mechanism 1 forms a movable trolley capable of moving forward or backward on the ground, thus facilitating adjustment of its horizontal position.

[0067] In an alternative embodiment, such as Figure 2 As shown, the number of rollers 13 is set to four, evenly distributed around the base 11, in order to better maintain the balance of the trolley. In other embodiments, the number of rollers 13 may also be three or five or more.

[0068] In an optional embodiment, the power supply device and the power supply control device are mounted on the base 11 and move with the trolley; or the power supply device and the power supply control device are placed on the ground and connected to the drive assembly via wires.

[0069] In an alternative embodiment, such as Figure 1 As shown, the detection tool for medical imaging equipment in this embodiment also includes a guide rail 6, into which the roller 13 can be partially embedded to guide the movement direction of the roller 13. In this embodiment, the arrangement of the guide rail 6 ensures that the lateral movement mechanism 1 moves forward or backward along the guide rail 6, which helps to limit the movement direction of the lateral movement mechanism 1 and avoid deviation. This structure can improve the detection accuracy in detection items with an inherent maximum count rate.

[0070] In an alternative embodiment, such as Figure 3 , Figure 4 As shown, the vertical moving mechanism 2 includes: a support platform 21, a second drive assembly 22, a guide cylinder 23, and a telescopic frame 24. The support platform 21 is fixed to the base 11, serving to support other components. The second drive assembly 22 is installed on one side of the support platform 21, and the guide cylinder 23 is fixed to the other side of the support platform 21. The extension direction of the guide cylinder 23 is perpendicular to the support platform 21; that is, when the support platform 21 is horizontal, the guide cylinder 23 is vertical. The telescopic frame 24 is installed inside the guide cylinder 23 and can move along the extension direction of the guide cylinder 23. The top of the telescopic frame 24 is connected to the platform mounting frame 3. Through the telescopic movement of the telescopic frame 24, the platform 4 is actually lifted and lowered in the vertical direction. A transmission component 25 connects the telescopic frame 24 and the second drive assembly 22, enabling the telescopic frame 24 to move under the drive of the second drive assembly 22. In this embodiment, the guide cylinder 23 and the telescopic frame 24 cooperate to achieve a telescopic structure, which facilitates the vertical lifting and lowering movement of the platform 4. The second drive component 22 enables the mechanical drive of the lifting and lowering of the platform 4, improving the convenience and efficiency of adjustment.

[0071] In an alternative embodiment, such as Figure 4 As shown, the transmission component 25 includes a lead screw 251 and a lead screw nut 252. The lead screw 251 is connected to the second drive assembly 22, and the lead screw nut 252 is sleeved on the lead screw 251 and fixed to the telescopic frame 24. In this embodiment, the telescopic frame 24 is extended and retracted relative to the guide cylinder 23 by the cooperation of the lead screw 251 and the lead screw nut 252, and the driving method is simple and reliable.

[0072] In an alternative embodiment, such as Figure 3 , Figure 7 As shown, the platform mounting frame 3 includes a fixed base 30 and a rotating rod 31. The fixed base 30 is fixed to the top of the vertical moving mechanism 2; the fixed base 30 includes a fixed plate 301 and a limiting block 302. The rotating rod 31 is hinged to the fixed plate 301. The limiting block 302 is used to abut against the rotating rod 31 when it is rotated to a specific angle to limit its rotation range. In this embodiment, the rotating rod 31 is designed as a rotatable structure, which facilitates storage, such as... Figure 1 As shown, when the rotating rod 31 rotates to a position parallel to the vertical moving mechanism 2, it occupies very little space.

[0073] When using the testing tool, the limit block 302 ensures that the operator can quickly adjust the angle of the rotating rod 31 to the correct position. The operator can determine that the rotating rod 31 has reached the preset position simply by noticing that it cannot continue to rotate against the limit block 302. Optionally, such as... Figure 6As shown, for example, if the preset position of the rotating rod 31 is parallel to the horizontal plane, then the limiting block 302 is designed so that when the rotating rod 31 is parallel to the horizontal plane, the limiting block 302 just abuts against the rotating rod 31.

[0074] In an optional embodiment, the platform mounting frame 3 includes a third drive assembly, and the rotating rod 31 rotates to a preset position under the drive of the third drive assembly to achieve mechanical drive.

[0075] In an alternative embodiment, such as Figure 5 As shown, the stage 4 has a slot 41 for securing the ampoule assembly. In this embodiment, the design of the slot 41 ensures that the radiation source is quickly and stably loaded onto the stage 4, reducing the risk of radiation source detachment. It is understood that the container assembly used for the radiation source needs to be compatible, for example, designed with corresponding fastening positions, so that the container assembly can be directly fastened into the slot 41. In other embodiments, the slot 41 can also be designed to directly match the contour of the ampoule, allowing the ampoule to be fastened into the slot 41 without the need for a matching assembly.

[0076] In an alternative embodiment, such as Figures 2-4 As shown, the drive assembly has a detachable plug 5 for connecting to a power supply device. In this embodiment, the design of the detachable plug 5 facilitates quick and flexible connection of the testing tool to the power supply device on-site. Since this testing tool needs to be transported to the testing room during actual use, and the circuit needs to be repeatedly disassembled and reassembled, this structure improves the convenience of circuit disassembly and assembly.

[0077] In an alternative embodiment, such as Figure 8 As shown, the testing tool for the medical imaging equipment also includes a rangefinder 7, which is fixed to the platform 4 and used to measure the height above the ground. In this embodiment, the rangefinder 7 can verify the height of the platform 4 above the ground, avoiding height adjustment errors caused by negligence of the testing personnel and preventing incorrect quality testing results.

[0078] In an optional embodiment, the rangefinder 7 can also be coupled with the infrared positioning device into an integrated unit, which can simultaneously measure the height above the ground and locate the center of the probe, thus reducing the size of the device and improving portability.

[0079] In an optional embodiment, when the telescopic frame 24 of the vertical moving mechanism 2 extends to its maximum distance, the total length of the vertical moving mechanism 2 can reach 2.5m; when the telescopic frame 24 retracts to its minimum distance, the total length of the vertical moving mechanism 2 can reach 0.75m. When storing this testing tool, the telescopic frame 24 can be retracted as much as possible to reduce the total length of the vertical moving mechanism 2 for easier storage. When using this testing tool, the telescopic frame 24 can be extended so that the total length of the vertical moving mechanism 2 reaches 1.5m to 2.5m to meet the testing standards. The specific adjustment length can be determined according to the actual usage needs of different scenarios.

[0080] Based on the above-described preferred embodiments according to this application, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this application. The technical scope of this application is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A detection tool for medical imaging equipment, characterized in that, include: A lateral movement mechanism (1) is used for horizontal movement; A vertical moving mechanism (2) is connected to the horizontal moving mechanism (1) and is used to move in the vertical direction; The platform mounting frame (3) is connected to the vertical moving mechanism (2); The platform (4) is connected to the end of the platform mounting frame (3) away from the vertical moving mechanism (2); A radioactive source, detachably mounted on the stage (4); The lateral movement mechanism (1) and / or the vertical movement mechanism (2) include a drive component.

2. The detection tool for medical imaging equipment according to claim 1, characterized in that, The detection tool for medical imaging equipment also includes: A power supply device, which is connected to the drive assembly, is used to provide the energy required for the drive assembly to drive. A power supply control device includes a switch module, a communication module, and a remote controller. The switch module is connected to the power supply device and is used to control the timing when the power supply device supplies power to the drive component. The switch module is also connected to the communication module, and the remote controller can send signals to the communication module to control the switch module.

3. The detection tool for medical imaging equipment according to claim 1, characterized in that, The lateral movement mechanism (1) includes: Base (11); A first drive assembly (12) is mounted on the base (11); A roller (13) is rotatably mounted on the base (11). The roller (13) is connected to the first drive assembly (12) and can roll under the drive of the first drive assembly (12).

4. The detection tool for medical imaging equipment according to claim 3, characterized in that, The detection tool for medical imaging equipment also includes a guide rail (6), which allows the roller (13) to be partially embedded to guide the movement direction of the roller (13).

5. The detection tool for medical imaging equipment according to claim 3, characterized in that, The vertical moving mechanism (2) includes: A support platform (21) is fixed to the base (11); The second drive assembly (22) is installed on one side of the support platform (21); A guide cylinder (23) is fixed on the other side of the support platform (21), and the extension direction of the guide cylinder (23) is perpendicular to the support platform (21); The telescopic frame (24) is installed inside the guide tube (23) and can move along the extension direction of the guide tube (23). The top of the telescopic frame (24) is connected to the platform mounting frame (3). The transmission component (25) connects the telescopic frame (24) and the second drive assembly (22), enabling the telescopic frame (24) to move under the drive of the second drive assembly (22).

6. The detection tool for medical imaging equipment according to claim 5, characterized in that, The transmission component (25) includes a lead screw (251) and a lead screw nut (252). The lead screw (251) is connected to the second drive assembly (22), and the lead screw nut (252) is sleeved on the lead screw (251) and fixed to the telescopic frame (24).

7. The detection tool for medical imaging equipment according to claim 1, characterized in that, The platform mounting bracket (3) includes: A fixed base (30) is fixed to the top of the vertical moving mechanism (2); the fixed base (30) includes a fixing piece (301) and a limiting block (302); The rotating rod (31) is hinged to the fixed plate (301); The limiting block (302) is used to abut against the rotating rod (31) when it is rotated to a specific angle, so as to limit its rotation range.

8. The detection tool for a medical imaging device according to any one of claims 1-7, characterized in that, The stage (4) has a slot (41) for inserting and fixing the ampoule assembly.

9. The detection tool for medical imaging equipment according to any one of claims 1-7, characterized in that, The drive assembly has a detachable plug (5) for connecting a power supply device.

10. The detection tool for a medical imaging device according to any one of claims 1-7, characterized in that, The detection tool for the medical imaging equipment also includes a rangefinder (7), which is fixed to the platform (4) and used to measure the height of the platform (4) above the ground.

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