Activity meter and activity meter host

Abstract

The utility model relates to the technical field of radioactivity detection, in particular to an activity meter and an activity meter host, the activity meter comprises a cylinder body, a detector and a cover connecting piece, and the detector and the cover connecting piece are arranged in the cylinder body; the detector is arranged below the cylinder body; the cover connecting piece is detachably connected with the cylinder body; a lining is arranged on the upper portion of the covering and connecting piece, the lining is installed on the covering and connecting piece, and the lining is detachably connected with the covering and connecting piece. The problem that an existing activity meter is inconvenient to clean after being polluted is solved.

Description

Technical Field

[0001] This utility model relates to the field of radioactivity detection technology, specifically to an activity meter and its main unit. Background Technology

[0002] An activity meter is an instrument specifically designed to measure the activity of radionuclides. It is an important tool in the field of radiation medicine and protection. Based on the property that the activity of a radionuclide is proportional to the specific types of radiation released during its decay (such as alpha particles, beta particles, or gamma rays), the activity is indirectly determined by capturing and measuring this radiation energy through a detector. An activity meter typically consists of a well-type ionization chamber, a current measurement system, and a radioactivity display unit. The ionization chamber is the core component of the activity meter. It uses the gamma rays produced by the decay of a radionuclide to ionize the working gas, forming a current proportional to the activity of the radionuclide. This current is processed by the measurement system, and the activity of the radionuclide can be directly read on the display unit in units such as Bq (Bécler) or Ci (Curie).

[0003] Currently, activity meters manufactured using the well-type ionization chamber measurement principle in existing technology often employ a one-piece internal structure. While this design ensures the stability and measurement accuracy of the activity meter to a certain extent, it also introduces some significant technical problems. The most prominent issue is the extreme difficulty in handling cases where radiopharmaceuticals are accidentally spilled during use, contaminating the detector. Because the detector's internal structure is one piece, once contaminated, it cannot be cleaned immediately. Operators can only wait for the nucleoside activity within the detector to decay naturally before proceeding with subsequent detection. This process is not only time-consuming and labor-intensive, severely impacting work efficiency, but also potentially causing interference with subsequent measurement results due to residual contaminants, thus reducing measurement accuracy.

[0004] Therefore, in view of this, the inventor proposes an activity meter and an activity meter main unit to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an activity meter to solve the problem that existing activity meters are inconvenient to clean after being contaminated; the second purpose is to propose an activity meter main unit.

[0006] On the one hand, in order to achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An activity meter includes a cylinder, a detector, and a cover fitting, wherein the detector and the cover fitting are disposed within the cylinder.

[0008] The detector is positioned below the cylinder.

[0009] The cover fitting is detachably connected to the cylinder body;

[0010] A bushing is provided above the cover connector, the bushing is installed on the cover connector, and the bushing is detachably connected to the cover connector.

[0011] According to the above technical solution, the cylinder, as the main structure, provides installation space for the detector and the cover fitting. The detector is set inside the cylinder to capture and measure the radiation energy released when radionuclides decay. The cover fitting is detachably connected to the cylinder, which facilitates opening the cylinder for internal cleaning or maintenance when needed. Regular cleaning of the cover fitting and the bushing can prevent the accumulation of contaminants from interfering with the measurement results. A bushing is provided on top of the cover fitting to further protect the detector from external contamination. When the bushing is contaminated, it can be removed separately for cleaning without disassembling the entire cover fitting or the cylinder.

[0012] Furthermore, the cylindrical body includes a cylinder, a partition, and a bottom cover, the bottom cover being installed at the bottom of the cylinder;

[0013] The partition is disposed inside the cylinder and fixedly connected to the cylinder, and a cavity is formed between the partition and the bottom cover.

[0014] Furthermore, limit plates are symmetrically arranged on both sides of the detector, and snap-fit ​​portions are formed on the limit plates for limiting and fixing the detector;

[0015] The limiting plate is also provided with an installation slot, and a fastener is provided in the installation slot. The limiting plate is connected to the partition through the fastener.

[0016] Furthermore, the cover assembly includes an annular plate and a cylindrical tube, the annular plate being used to connect with the inner wall of the cylindrical tube;

[0017] The annular plate is fixed on the cylindrical tube, and a first mounting hole is provided at the center of the cylindrical tube for accommodating the bushing.

[0018] According to the above technical solution, the cylindrical tube and the annular plate are fixed together, and the first mounting hole opened at the center is used to accurately accommodate the bushing.

[0019] Furthermore, a second mounting hole is provided at the center of the bushing, and when the bushing is installed inside the cylindrical tube, the first mounting hole and the second mounting hole are coaxially arranged.

[0020] Furthermore, it also includes a carrier, which comprises a probe cylinder, a handle, and a carrying handle, with the two ends of the handle connected to the probe cylinder and the carrying handle, respectively.

[0021] Furthermore, a drug placement slot is provided inside the probe cylinder for placing drugs.

[0022] Furthermore, a handle is provided at the top of the cylinder, and a handle pin is provided between the handle and the cylinder, the handle pin being used to install the handle onto the cylinder;

[0023] The handle is rotatably mounted on the cylinder.

[0024] Furthermore, the bottom cover has several third mounting holes, and countersunk screws are installed in the third mounting holes to fix the bottom cover to the cylinder.

[0025] On the other hand, this utility model also proposes a life meter main unit, including a body and a cable, and also including the life meter as described above, characterized in that: the body is connected to the life meter through the cable.

[0026] The beneficial effects of this utility model are:

[0027] This invention uses a cylindrical body as the main body of the activity meter, which needs to maintain a certain strength and stability. The cover is detachably connected to the cylindrical body, making it easy to disassemble and clean in case of contamination. A bushing is set above the cover, which is also detachably connected to the cover. In this way, even if radioactive drugs are spilled on the bushing, the bushing can be quickly removed for cleaning. The detector needs to be stably fixed in the cylindrical body, while being easy to disassemble and replace. The detector can be fixed and disassembled by limiting plates and fasteners.

[0028] Other advantages, objectives, and features of this application will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from practice of this application. The objectives and other advantages of this application may be realized and obtained through the detailed embodiments described below. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the exploded structure of the activity meter of this utility model;

[0030] Figure 2 This is a schematic diagram of the disassembled cross-sectional structure of the activity meter of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the activity meter cylinder of this utility model from one direction.

[0032] Figure 4 This is a schematic diagram of the overall structure of the cylinder in the activity meter of this utility model from another direction;

[0033] Figure 5 This is a schematic diagram showing the disassembled structure of the activity meter of this utility model;

[0034] Figure 6 This is a schematic diagram showing the connection between the activity meter and the main unit of the activity meter of this utility model.

[0035] The components include: cylinder 1, cylindrical 11, handle 111, handle nail 112, partition 12, bottom cover 13, third mounting hole 131, countersunk screw 132, cavity 14, detector 2, cover connector 3, annular plate 31, cylindrical tube 32, bushing 4, second mounting hole 41, carrier 5, probe cylinder 51, drug placement slot 511, handle rod 52, handle 53, limiting plate 6, snap-fit ​​part 61, mounting slot 62, fastener 63, first mounting hole 64, body 7, and cable 8. Detailed Implementation

[0036] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] This embodiment proposes an activity meter, such as Figures 1 to 6 As shown, the device includes a cylinder 1, a detector 2, and a cover connector 3. The detector 2 and the cover connector 3 are disposed inside the cylinder 1. The cylinder 1 serves as the main structure and provides installation space for the detector 2 and the cover connector 3. The detector 2 is disposed inside the cylinder 1 to capture and measure the radiation energy released during the decay of radioactive nuclides. The cover connector is detachably connected to the cylinder 1. A bushing 4 is disposed above the cover connector 3. The bushing 4 is installed on the cover connector 3 and is detachably connected to the cover connector 3.

[0039] According to the above technical solution, the cover connector 3 is detachably connected to the cylinder 1, which makes it easy to open the cylinder 1 for internal cleaning or maintenance when needed. Regular cleaning of the cover connector 3 can prevent the accumulation of contaminants from interfering with the measurement results. A bushing 4 is provided on the top of the cover connector 3 to further protect the detector 2 from external contamination. When the bushing 4 is contaminated, the bushing 4 can be removed separately for cleaning without disassembling the entire cover connector 3 or the cylinder 1.

[0040] As a preferred embodiment, such as Figure 5 As shown, the cylinder 1 includes a cylinder 11, a partition 12 and a bottom cover 13. The bottom cover 13 is installed at the bottom of the cylinder 11. The partition 12 is disposed inside the cylinder 11 and fixedly connected to the cylinder 11. A cavity 14 is formed between the partition 12 and the bottom cover 13. The cavity 14 facilitates the storage of the cable 8 and also facilitates the connection of the cable 8 to the detector 2.

[0041] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, limit plates 6 are symmetrically arranged on both sides of the detector 2. Each limit plate 6 has a locking portion 61 for limiting and fixing the detector 2. The limit plates 6 also have mounting slots 62, within which fasteners 63 are installed. The limit plates 6 are connected to the partition plate 12 via the fasteners 63. In this embodiment, the fasteners 63 are M3 screws. According to the above technical solution, the limit plates 6 symmetrically installed on both sides of the detector 2 have locking portions 61 that precisely engage with the detector 2, achieving stable positioning of the detector 2. Simultaneously, the fasteners 63 are installed in the pre-set mounting slots 62 on the limit plates 6. These fasteners 63 penetrate the mounting slots 62 and are tightly connected to the partition plate 12, thereby ensuring the firmness of the limit plates 6 (and the detector 2 fixed thereto) and the stability of the detector 2.

[0042] The activity meter in this embodiment can be used to measure radionuclides such as I-131 and Tc-99m.

[0043] In this embodiment, detector 2 is a NaI detector, which can measure DC signals generated by the X-ray beam or pulse signals of a single X-ray, and the measurement range can reach nine orders of magnitude of current.

[0044] In a preferred embodiment, the cover fitting 3 includes an annular plate 31 and a cylindrical tube 32. The annular plate 31 is used to connect with the inner wall of the cylindrical tube 11, specifically by means of bolts. The annular plate 31 is fixed on the cylindrical tube 32. A first mounting hole 64 is provided at the center of the cylindrical tube 32 for accommodating the bushing 4. A second mounting hole 41 is provided at the center of the bushing 4. When the bushing 4 is installed inside the cylindrical tube 32, the first mounting hole 64 and the second mounting hole 41 are coaxially arranged.

[0045] As a preferred embodiment, such as Figure 1 and Figure 5 As shown, it also includes a carrier 5, which includes a probe cylinder 51, a handle 52 and a handle 53. The two ends of the handle 52 are connected to the probe cylinder 51 and the handle 53 respectively. A drug placement slot 511 is provided inside the probe cylinder 51 for placing drugs. The probe cylinder 51 and the bushing 4 are both made of transparent plexiglass.

[0046] According to the above technical solution, the carrier 5 consists of a probe cylinder 51, a handle 52, and a handle 53, forming an easy-to-operate overall structure. The probe cylinder 51 is designed with a drug placement slot 511, which is specifically used to place the drug to be measured. When using it, you only need to properly place the drug in the drug placement slot 511, and then by holding the handle 53 and using the support of the handle 52, you can easily move the entire carrier 5 to the required position in the cylinder 1 for measurement. The operation is simple and convenient.

[0047] As a preferred embodiment, such as Figure 1 and Figure 4 As shown, a handle 111 is provided on the top of the cylinder 11, and a handle nail 112 is provided between the handle 111 and the cylinder 11. The handle nail 112 is used to install the handle 111 on the cylinder 11, and the handle 111 can be installed on the cylinder 11 in a flip-up manner.

[0048] As a preferred embodiment, such as Figure 5 As shown, the bottom cover 13 has several third mounting holes 131, and countersunk screws 132 are provided in the third mounting holes 131. The countersunk screws 132 are used to fix the bottom cover 13 to the cylinder 11.

[0049] On the other hand, such as Figure 6 As shown, this utility model also proposes an activity meter host, including a body 7 and a cable 8, and also includes the activity meter as described above. The body 7 is connected to the activity meter via the cable 8. The activity meter host, as the core of the entire measurement system, integrates the body 7 and the cable 8. The body 7 is the main structure of the host, responsible for carrying and processing all measurement-related electronic components and data processing systems. The cable 8 serves as a connecting bridge, tightly connecting the body 7 to the activity meter (as described above, including the cylinder 1, detector 2, cover connector 3, and carrier 5, etc.). Through this design, the activity meter host can receive and process measurement data from the activity meter in real time, ensuring the accuracy and timeliness of the measurement results. It has a compact structure and strong practicality.

[0050] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. An activity meter, characterized in that, include: The cylinder (1), detector (2) and cover connector (3) are disposed inside the cylinder (1); The detector (2) is positioned below the cylinder (1); The cover connector (3) is detachably connected to the cylinder (1); A bushing (4) is provided above the cover connector (3). The bushing (4) is installed on the cover connector (3) and is detachably connected to the cover connector (3).

2. The activity meter according to claim 1, characterized in that: The cylindrical body (1) includes a cylinder (11), a partition (12) and a bottom cover (13), the bottom cover (13) being installed at the bottom of the cylinder (11); The partition (12) is disposed inside the cylinder (11) and fixedly connected to the cylinder (11), and a cavity (14) is formed between the partition (12) and the bottom cover (13).

3. The activity meter according to claim 2, characterized in that: Limiting plates (6) are symmetrically arranged on both sides of the detector (2). A snap-fit ​​part (61) is formed on the limiting plate (6), and the snap-fit ​​part (61) is used to limit and fix the detector (2). The limiting plate (6) is also provided with an installation slot (62), and a fastener (63) is provided in the installation slot (62). The limiting plate (6) is connected to the partition plate (12) through the fastener (63).

4. The activity meter according to claim 3, characterized in that: The cover fitting (3) includes an annular plate (31) and a cylindrical tube (32), wherein the annular plate (31) is used to connect with the inner wall of the cylindrical tube (11); The annular plate (31) is fixed on the cylindrical tube (32), and a first mounting hole (321) is provided at the center of the cylindrical tube (32) for accommodating the bushing (4).

5. The activity meter according to claim 4, characterized in that: The bushing (4) has a second mounting hole (41) at its center. When the bushing (4) is installed inside the cylindrical column (11), the first mounting hole (321) and the second mounting hole (41) are coaxially arranged.

6. The activity meter according to claim 5, characterized in that: It also includes a carrier (5), which includes a probe cylinder (51), a handle (52) and a handle (53), with the two ends of the handle (52) connected to the probe cylinder (51) and the handle (53) respectively.

7. The activity meter according to claim 6, characterized in that: The probe cylinder (51) has a drug placement slot (511) inside, which is used to place drugs.

8. The activity meter according to claim 2, characterized in that: The top of the cylinder (11) is provided with a handle (111), and a handle nail (112) is provided between the handle (111) and the cylinder (11). The handle nail (112) is used to install the handle (111) on the cylinder (11). The handle (111) is rotatably mounted on the cylinder (11).

9. The activity meter according to claim 7, characterized in that: The bottom cover (13) has several third mounting holes (131), and countersunk screws (132) are provided in the third mounting holes (131). The countersunk screws (132) are used to fix the bottom cover (13) on the cylinder (11).

10. A vitality meter main unit, comprising a body (7) and a cable (8), and further comprising the vitality meter as described in any one of claims 1-9, characterized in that: The body (7) is connected to the activity meter via the cable (8).

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