Multifunctional nuclear medicine equipment quality control rod source

Abstract

The utility model discloses a multifunctional nuclear medicine equipment quality control rod source which comprises a rod source main body and a handle, the rod source main body is detachably and fixedly connected with the handle, a multi-stage layered protection assembly is detachably arranged outside the rod source main body, an outer layer protection cover used for radiation protection is detachably arranged outside the handle in a sleeving mode, and the rod source main body is located in the outer layer protection cover; a first thread part is arranged at one end of the rod source body, and the rod source body is in threaded connection to the handle through the first thread part. The multi-stage layered protection assembly comprises a first-stage protection sleeve and a second-stage protection sleeve which are sequentially arranged in a sleeving mode, the first-stage protection sleeve and the second-stage protection sleeve are the same as the rod source body in shape and sequentially increased in size, the first threaded part extends out of the handle, and the first-stage protection sleeve is arranged outside the rod source body in a sleeving mode and is in threaded connection with the first threaded part. According to the utility model, the activity can be controlled according to experimental test requirements and specific conditions, the experimental activity requirement in a larger range is met, the radiation protection safety is improved, and the device is easy to use and store.

Description

Technical Field

[0001] The utility model relates to a multifunctional quality control rod source for nuclear medicine equipment, belonging to the technical field of medical equipment. Background Art

[0002] Positron Emission Tomography / Computed Tomography (PET / CT) integrates molecular functional imaging and anatomical structure imaging, and is widely used in clinical practice. It shows unique advantages especially in the diagnosis, staging and efficacy evaluation of neurological diseases, cardiovascular diseases and tumors. With the rapid development of medicine, new digital PET / CT has been popularized in more hospitals for clinical application. Especially, domestic PET / CT is becoming increasingly mature, which greatly promotes the popularization of advanced nuclear medicine technologies in grass-roots hospitals. PET / CT equipment is a very precise scientific device. The detection crystals used in the PET part are very sensitive to the objective environment. In order to ensure the accuracy of inspection data, special radioactive rod sources or bucket sources need to be used every day for equipment quality control detection.

[0003] Currently, rod sources can be divided into solid rod sources and liquid rod sources. Among them, solid rod sources are synthesized by special designated detection nuclides and solid materials, which are convenient to use, have stable performance, and the detection results are highly repeatable. However, general rod sources are designed with a fixed structure, and the activity of the rod source cannot be adjusted. During daily storage and use, staff need to be exposed to the radiation environment for installation and debugging; liquid rod sources are generally manually prepared by professionals, with complex operations, and are greatly affected by personal technical levels. The quality of the rod sources made by operators directly affects the results of PET quality control. Radioactive contamination is easily caused during the production process, which may even lead to the failure of quality control tests, and increases the radiation dose received by staff. The above two methods cannot overcome problems such as crude benzene in the protective packaging, complex operations and easy contamination, and long exposure time of staff in the radiation environment, highlighting the defects of the existing technology. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that neither the existing solid rod source nor the liquid rod source for quality control of nuclear medicine equipment can overcome the problems of crude benzene in the protective packaging, complex operations and easy contamination, and long exposure time of staff in the radiation environment.

[0005] In order to solve the above technical problems, the utility model provides a multifunctional quality control rod source for nuclear medicine equipment, which has simple operations, good protection, and certain selection capabilities for nuclide categories, activities and usage methods.

[0006] To achieve the above technical purpose and reach the above technical effect, the present application is realized through the following technical solutions:

[0007] A multifunctional quality control rod source for nuclear medicine equipment, comprising a rod source main body and a handle, the rod source main body is detachably and fixedly connected to the handle, a multi-stage layered protection component is detachably arranged outside the rod source main body, and an outer protective cover for protecting against radiation is detachably sleeved outside the handle, and the rod source main body is located inside the outer protective cover.

[0008] Preferably, one end of the rod source main body is provided with a first threaded portion, and the rod source main body is threadedly connected to the handle through the first threaded portion.

[0009] Furthermore, the multi-stage layered protection component includes a first-stage protection sleeve and a second-stage protection sleeve sleeved in sequence. The first-stage protection sleeve and the second-stage protection sleeve have the same shape as the rod source main body and gradually increase in volume. The first threaded portion extends out of the handle, and the first-stage protection sleeve is sleeved outside the rod source main body and threadedly connected to the first threaded portion.

[0010] Even further, threaded portions two and three are respectively arranged on the outer walls of the open ends of the first-stage protection sleeve and the second-stage protection sleeve, and the first-stage protection sleeve is threadedly connected to the second-stage protection sleeve through the threaded portion two.

[0011] Preferably, the outer protective cover includes a cover body and an outward-turning cover. The outward-turning cover is rotatably arranged on the cover body. A plug board is arranged on the side of the outward-turning cover away from the cover body, and a slot for plugging and cooperating with the plug board is arranged on the cover body.

[0012] Furthermore, a first clamping groove and a second clamping groove for clamping the handle are respectively formed on the cover body and the outward-turning cover, and the first clamping groove and the second clamping groove communicate to form a limiting groove.

[0013] Even further, a limiting block is arranged at one end of the handle close to the rod source main body. The limiting block extends into the outer protective cover. One end of the handle away from the limiting block extends out of the outer protective cover, and the cross-sectional area of the limiting block is larger than the cross-sectional area of the limiting groove.

[0014] Preferably, the outer protective cover is in the shape of a triangular prism.

[0015] The multifunctional quality control rod source for nuclear medicine equipment provided by the present utility model has the following advantages:

[0016] 1. For the multifunctional quality control rod source of the present utility model, the detection activity can be adjusted through the multi-stage layered protection component, and then the activity of the rod source main body can be controlled according to the experimental test requirements and specific conditions, providing better radiation protection for the staff, and at the same time can be used for a wider range of medical physics scientific research tests.

[0017] 2. For the multifunctional quality control rod source of the present utility model, the rod source main body and the handle are threadedly connected through the first threaded portion, which can realize the replacement function of the rod source main body.

[0018] 3. The multifunctional nuclear medicine equipment quality control rod source of the utility model can be conveniently placed in a triangular prism-shaped outer protective cover with a protective function during intervals or after use. The flip cover design is convenient and safe, easy to use and store, and improves the safety of radiation protection. At the same time, the triangular prism-shaped setting can increase the stability and convenience of use during storage and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the assembly of the rod source body and the handle of the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the utility model mainly showing the connection relationship between the rod source body and the multi-level layered protection assembly;

[0021] Figure 3 This is a schematic diagram of the structure of a multifunctional nuclear medicine equipment quality control rod source of the utility model;

[0022] Figure 4 This is an exploded schematic diagram of the overall structure of a quality control rod source of a multifunctional nuclear medicine equipment mainly embodied in the utility model;

[0023] In the figure:

[0024] 1-rod source body; 11-threaded part one; 2-handle; 21-limiting block; 3-multi-level layered protection assembly; 31-first-level protection sleeve; 311-threaded part two; 32-second-level protection sleeve; 321-threaded part three; 4-outer protective cover; 41-cover body; 411-slot; 42-outer flip cover; 421-insertion board; 5-limiting slot; 51-card slot one; 52-card slot two. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technical personnel in the field without creative work are within the scope of protection of the present utility model.

[0026] Reference Figure 1 A multifunctional nuclear medicine equipment quality control rod source includes a rod source body 1 and a handle 2. The rod source body 1 and the handle 2 are detachably fixedly connected. Specifically, a threaded portion 11 is integrally formed at one end of the rod source body 1. The rod source body 1 is threadedly connected to the handle 2 through the threaded portion 11, so that the rod source body 1 can be replaced.

[0027] Reference Figure 1 and Figure 2A multifunctional nuclear medicine equipment quality control rod source also includes a multi-level layered protection component 3 and an outer protective cover 4. The multi-level layered protection component 3 can be detachably installed outside the rod source body 1 to adjust the detection activity of the rod source body; the outer protective cover 4 can be detachably sleeved on the outside of the handle 2 and the rod source body is located in the outer protective cover 4, so as to facilitate the placement, storage and radiation protection of the rod source body during intermittent use or after use.

[0028] Furthermore, the multi-level layered protection assembly 3 includes a primary protection sleeve 31 and a secondary protection sleeve 32 which are sequentially sleeved, the primary protection sleeve 31 and the secondary protection sleeve 32 are both of the same shape as the rod source body 1 and their volumes are sequentially increased, the threaded portion 11 extends out of the handle 2, the primary protection sleeve 31 is sleeved outside the rod source body 1 and is threadedly connected to the threaded portion 11; the primary protection sleeve 31 and the secondary protection sleeve 32 are respectively integrally formed with a threaded portion 2 311 and a threaded portion 321 on the outer walls of the opening ends thereof, the primary protection sleeve 31 passes through the threaded portion 2 311 It is threadedly connected with the secondary protection sleeve 32. In actual application, the primary protection sleeve 31 can be installed alone or the primary protection sleeve and the secondary protection sleeve 32 can be installed according to the equipment quality control or calibration activity requirements, so as to achieve the control of the activity of the radioactive source in the rod source body 1. The setting of the external threaded portion 321 of the secondary protection sleeve 32 can be used to set more protection sleeves according to needs, so as to achieve more control requirements on the activity of the rod source body 1. The principle is the same as the connection between the primary protection sleeve 31 and the secondary protection sleeve 32, and no further elaboration is made.

[0029] Reference Figure 3 and Figure 4 In a further embodiment, the outer protective cover 4 includes a cover body 41 and an outer flip cover 42. The outer flip cover 42 is integrally formed with the cover body 41 and rotatably arranged on the cover body 41, which is similar to the rotating connection method between the cardboards of the carton. It is a prior art and will not be described in detail. A plug plate 421 is integrally formed on the side of the outer flip cover 42 away from the cover body 41. A slot 411 is provided on the cover body 41 to be plugged into and matched with the plug plate 421. When the protective cover is installed, the plug plate 421 is inserted into the slot 411 to fix the cover body 41 and the outer flip cover 42.

[0030] Furthermore, a first card slot 51 and a second card slot 52 for clamping the handle 2 are respectively provided on the cover body 41 and the outer flip cover 42. The first card slot 51 is connected with the second card slot 52 to form a limiting slot 5. A limiting block 21 is integrally formed at one end of the handle 2 close to the rod source body 1. When the outer protective cover 4 covers the handle 2 and the rod source body, the limiting block 21 extends into the outer protective cover 4, and the end of the handle 2 away from the limiting block 21 extends out of the outer protective cover 4, and the cross-sectional area of ​​the limiting block 21 is larger than the cross-sectional area of ​​the limiting slot 5, which can avoid the possibility of the handle 2 and the rod source body slipping out of the outer protective cover 4.

[0031] Furthermore, the outer protective cover 4 is integrally in the shape of a triangular prism, which can increase the stability and convenience during storage and use.

[0032] The above are only the preferred embodiments of the present utility model, and do not impose any formal or substantial limitations on the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the premise of the present utility model, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as within the protection scope of the present utility model. For those skilled in the art, without departing from the spirit and scope of the present utility model, any equivalent changes made by using the technical content disclosed above through minor modifications, decorations, and evolutions are equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the scope of the technical solutions of the present utility model.

Claims

1. A multifunctional nuclear medicine equipment quality control rod source, characterized in that: The invention comprises a rod source body (1) and a handle (2), wherein the rod source body (1) and the handle (2) are detachably fixedly connected, a multi-level layered protection component (3) is detachably provided on the outside of the rod source body (1), an outer layer protection cover (4) for protecting radiation is detachably provided on the outside of the handle (2), and the rod source body (1) is located inside the outer layer protection cover (4).

2. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 1, characterized in that: A threaded portion 1 (11) is provided at one end of the rod source body (1), and the rod source body (1) is threadably connected to the handle (2) via the threaded portion 1 (11).

3. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 2, characterized in that: The multi-level layered protection assembly (3) comprises a primary protection sleeve (31) and a secondary protection sleeve (32) which are sequentially sleeved, the primary protection sleeve (31) and the secondary protection sleeve (32) are both of the same shape as the rod source body (1) and their volumes increase sequentially, the threaded portion (11) extends out of the handle (2), the primary protection sleeve (31) is sleeved outside the rod source body (1) and is threadedly connected to the threaded portion (11).

4. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 3, characterized in that: A second threaded portion (311) and a third threaded portion (321) are respectively provided on the outer walls of the opening ends of the primary protective sleeve (31) and the secondary protective sleeve (32), and the primary protective sleeve (31) is threadedly connected to the secondary protective sleeve (32) via the second threaded portion (311).

5. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 1, characterized in that: The outer protective cover (4) comprises a cover body (41) and an outer flip cover (42), wherein the outer flip cover (42) is rotatably arranged on the cover body (41), a plug plate (421) is arranged on a side of the outer flip cover (42) away from the cover body (41), and a slot (411) is arranged on the cover body (41) for plugging and cooperating with the plug plate (421).

6. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 5, characterized in that: The cover body (41) and the outer flip cover (42) are respectively provided with a first clamping slot (51) and a second clamping slot (52) for clamping the handle (2), and the first clamping slot (51) is connected with the second clamping slot (52) to form a limiting slot (5).

7. A multifunctional nuclear medicine equipment quality control rod source as claimed in claim 6, characterized in that: A limit block (21) is arranged at one end of the handle (2) close to the rod source body (1), the limit block (21) extends into the outer protective cover (4), and one end of the handle (2) facing away from the limit block (21) extends out of the outer protective cover (4), and the cross-sectional area of ​​the limit block (21) is greater than the cross-sectional area of ​​the limit groove (5).

8. The multifunctional nuclear medicine equipment quality control rod source according to claim 1, characterized in that: The outer protective cover (4) is in the shape of a triangular prism.

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