Multifunctional SPECT performance measuring device

Abstract

The utility model discloses a multifunctional SPECT (Single Photon Emission Computed Tomography) performance measuring device, which relates to the medical equipment detection technology and comprises a spring buckle, a connecting piece, a telescopic rod and a circular truncated cone container, a spring buckle is arranged on the base, a clamping foot clamped on a medical bed is arranged in the spring buckle, the connecting piece is rotationally installed on the spring buckle, the telescopic rod is detachably installed in the connecting piece, the circular truncated cone container is detachably installed above the telescopic rod, and a containing cavity used for containing a radioactive source is formed in the circular truncated cone container. According to the device, multi-dimensional adjustment of the height and the direction of the radioactive source in the circular truncated cone container is achieved, the device is easy and convenient to adjust and operate, the loading and unloading time of the device is shortened, the radiation dose of operators is greatly reduced, and the device can measure multiple performance indexes such as inherent spatial resolution, inherent spatial linearity and fault spatial resolution of SPECT equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment detection technology, more specifically, it relates to a multifunctional SPECT performance measuring device. BACKGROUND

[0002] Single-Photon Emission Computed Tomography (SPECT) is a nuclear medicine tomography technique using gamma (γ) rays. SPECT machines are nuclear medicine imaging devices developed on the basis of gamma cameras, and their basic structure consists of three parts: a probe, a rotating motion frame, a computer and its auxiliary equipment. SPECT is the most common nuclear medicine imaging device, which displays the functional metabolism characteristics of organs and even molecular biology information by injecting radioactive nuclides as tracers through intravenous injection, providing sensitive early diagnostic information for clinical use. SPECT can be widely used for functional metabolism imaging of various organs in the body, early diagnosis of tumors, diagnosis of coronary heart disease and myocardial ischemia, cardiac function measurement, early diagnosis of tumor metastasis, and radionuclide imaging of other organs such as thyroid, brain, liver, and digestive system. It has an irreplaceable advantage over other imaging methods in the diagnosis of coronary heart disease, myocardial ischemia, early tumor bone metastasis, thyroid disease, and renal function dynamic imaging.

[0003] According to the relevant requirements of "Regulations on Radiotherapy Management" (Ministry of Health Order No. 46) and "Gamma Camera, Single-Photon Emission Tomography Device (SPECT) Quality Control Detection Specification" (WS 523-2019), the quality control detection cycle of SPECT devices is once a year. However, the measurement devices used for each quality control detection indicator are not the same, and there are situations such as complex installation and disassembly, repeated adjustment of position during the detection process, and the need to replace different measurement devices for different indicators. In addition, the detection process is not only time-consuming and labor-intensive, but also exposes the workers to a long-term γ radiation dose during the replacement of measurement devices and the adjustment of device positions (especially when measuring intrinsic spatial resolution and intrinsic spatial linearity, the radiation dose is the highest). The long-term cumulative radiation dose poses a potential health risk to workers. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems of the prior art by providing a multifunctional SPECT performance measuring device that shortens the installation and disassembly time of the device and reduces the radiation dose to the operator.

[0005] The utility model relates to a kind of multifunctional SPECT performance measuring device, including spring buckle, connecting piece, telescopic link and round table container;Spring buckle is equipped with the clamping leg of being clamped on medical bed in it, connecting piece is rotatably installed on spring buckle, telescopic link is detachably installed in connecting piece, round table container is detachably installed in the top of telescopic link, cavity for placing radioactive source is equipped in the round table container.

[0006] Preferably, the spring buckle includes a mounting plate and a tension spring; both ends of the mounting plate are hingedly connected with clamping legs, and both ends of the tension spring are fixed on the two clamping legs, respectively; a receiving groove for accommodating the tension spring is formed in the lower side of the mounting plate.

[0007] Preferably, the clamping leg is composed of a first rod and a second rod, one end of the first rod is hingedly connected with the mounting plate, the other end of the first rod is fixedly connected with the second rod, an included angle is formed between the first rod and the second rod, and the end of the tension spring is fixed on the first rod.

[0008] Preferably, the included angle is less than or equal to 90°.

[0009] Preferably, the connecting piece includes a universal ball, a mounting seat and a plug-in pipe; the universal ball is fixedly installed on the mounting plate, the mounting seat is installed on the universal ball, the plug-in pipe is fixedly installed on the mounting seat, the axial direction of the plug-in pipe is perpendicular to the horizontal direction, and a jacking bolt is screwed on the side wall of the plug-in pipe.

[0010] Preferably, the telescopic link is made of carbon fiber material.

[0011] Preferably, the round table container includes a container body, an upper cover and a lower cover; a cavity penetrating through the container body is formed in the container body, the upper cover is rotatably installed above the container body, and the lower cover is rotatably installed below the container body; a hook is fixed on the container body, a hook ring is fixed on the end of the telescopic link, and the hook is hung in the hook ring.

[0012] Preferably, the container body, the upper cover and the lower cover are all made of tungsten alloy material.

[0013] Beneficial effects

[0014] The utility model has the advantages that the radioactive source in the round table container can be adjusted in multiple dimensions, the adjustment operation is convenient, and the installation and debugging time of the device is greatly reduced. Moreover, due to the detachable structure of the round table container, the device can be fixed first and then the round table container can be installed, the material of the round table container can effectively shield the rays, thereby reducing the health hazards of the workers caused by the radioactive source in the adjustment process, and greatly reducing the radiation dose of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the initial state structure schematic view of the multifunctional SPECT performance measuring device of the utility model;

[0016] Fig. 2 It is the using state structure schematic view of the multifunctional SPECT performance measuring device of the utility model;

[0017] Fig. 3 It is the circular table container structure schematic view of the utility model.

[0018] Among them: 1-medical bed, 2-spring buckle, 3-connector, 4-telescopic rod, 5-circular table container, 6-hanging ring, 8-hook, 21-mounting plate, 22-tension spring, 23-clamping leg, 31-universal ball, 32-mounting seat, 33-plug-in pipe, 51-container body, 52-upper cover, 53-lower cover, 231-rod one, 232-rod two, 233-angle. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with examples, but does not constitute any limitation to the utility model, the limited number of modifications that anyone does in the utility model claim scope is still in the utility model claim scope.

[0020] Reference Figs. 1-3 , a kind of multifunctional SPECT performance measuring device of the utility model, including spring buckle 2, connector 3, telescopic rod 4 and circular table container 5.Spring buckle 2 is equipped with clamping leg 23 clamped on medical bed 1, to realize the installation positioning of device.Connector 3 is rotatably installed on spring buckle 2, telescopic rod 4 is detachably installed in connector 3, circular table container 5 is detachably installed above telescopic rod 4, and circular table container 5 is equipped with the cavity for placing radioactive source.Such arrangement makes that each part of device can realize disassembly, and because of the clamping type connection of spring buckle 2, device is very easy to disassemble and adjust in horizontal position on medical bed.In addition, through the rotatable installation of connector 3, the fine adjustment of circular table container 5 in horizontal direction is realized;And the setting of telescopic rod 4 is conducive to the adjustment of height spacing between radioactive source in circular table container 5 and SPECT probe above equipment.I.e.the utility model realizes multidimensional adjustment to radioactive source in circular table container 5, and adjustment operation is convenient, greatly reduces the installation time of device.And because the detachable structure of circular table container 5, device can be aligned and then circular table container 5 is installed, so as to reduce the health hazards of radioactive source in circular table container 5 to workers in the adjustment process, and the radiation dose of workers is greatly reduced.

[0021] In the embodiment, the spring buckle 2 comprises a mounting plate 21 and a tension spring 22. The two ends of the mounting plate 21 are hingedly provided with clamping legs 23, the two ends of the tension spring 22 are fixed on the two clamping legs 23 respectively, and a containing groove for containing the tension spring 22 is formed below the mounting plate 21. The containing groove can ensure that the tension spring 22 is always in the containing groove during the action of the clamping leg 23, preventing the tension spring 22 from being damaged by contacting the medical bed 1. The tension spring 22 can be in a stretched state all the time. When it is needed to install the device on the medical bed 1, the two clamping legs 23 are turned outward to increase the distance between the two clamping legs 23, and then the spring buckle 2 is placed on the medical bed 1. Then, the clamping legs 23 are loosened to freely rotate and reset under the spring force of the tension spring 22, so that the spring buckle 2 is clamped on the medical bed 1, and the installation of the device is realized. It should be noted that the medical bed 1 of the SPECT device generally has grooves on both sides, so that the clamping legs 23 can be clamped in the grooves during installation of the device.

[0022] The clamping leg 23 is composed of a rod one 231 and a rod two 232. One end of the rod one 231 is hingedly connected with the mounting plate 21, the other end of the rod one 231 is fixedly connected with the rod two 232, and an included angle 233 is arranged between the rod one 231 and the rod two 232. The end of the tension spring 22 is fixed on the rod one 231. The included angle 233 is less than or equal to 90°, so that the spring buckle 2 can be more effectively clamped on the medical bed 1.

[0023] The connecting piece 3 comprises a universal ball 31, a mounting seat 32 and a plug-in pipe 33. The universal ball 31 is fixedly installed on the mounting plate 21, the mounting seat 32 is installed on the universal ball 31, and the plug-in pipe 33 is fixedly installed on the mounting seat 32. The axial direction of the plug-in pipe 33 is perpendicular to the horizontal direction, and a jacking bolt is screwed on the side wall of the plug-in pipe 33, so that the rotating installation of the connecting piece 3 is realized.

[0024] Preferably, the telescopic rod 4 is made of carbon fiber material, which is light in weight and strong in toughness, and is convenient to carry on site, so that the device is lightened.

[0025] The circular-truncated-cone container 5 comprises a container body 51, an upper cover 52 and a lower cover 53. The container body 51, the upper cover 52 and the lower cover 53 are all made of tungsten alloy material, which shields the rays generated by the radioactive source. The container body 51 is provided with a cavity penetrating through the container body 51, the upper cover 52 is rotatably installed above the container body 51, and the lower cover 53 is rotatably installed below the container body 51. Since the radioactive source is placed in the container body 51, the cavity needs to be closed during the movement or installation of the device, at which time the upper and lower covers need to be closed. When the SPECT probe needs to be tested, the lower cover 53 is opened, so that the radioactive source is exposed. It should be noted that the container body 51 and the cavity are both conical structures, which are large at the top and small at the bottom, so that the radioactive source can be limited in the cavity, and therefore opening the lower cover 53 will not cause the radioactive source to fall. The container body 51 is fixed with a hook 8, the end of the telescopic rod 4 is fixed with a hook ring 6, the hook 8 is hung in the hook ring 6, and the detachable installation of the circular-truncated-cone container 5 is achieved.

[0026] The working principle of the utility model is: when the device needs to be installed on the medical bed 1, first, determine the installation position of the device on the medical bed 1, then rotate the two clamping legs 23 outward, so that the distance between the two clamping legs 23 becomes larger, then place the spring buckle 2 on the medical bed 1, then loosen the clamping leg 23, so that it freely rotates and resets under the spring force of the tension spring 22, so that the spring buckle 2 is clamped on the medical bed 1, and the installation of the device is realized.

[0027] Then adjust the length of the telescopic rod 4, so that the end of the telescopic rod 4 matches the position of the SPECT probe on the equipment, that is, the container body 51 is located above the SPECT probe, and after the adjustment is completed, the circular-truncated-cone container 5 with the radioactive source is hung at the end of the telescopic rod 4. During testing, only the lower cover 53 of the circular-truncated-cone container 5 needs to be opened, so that the radioactive source is aligned with the SPECT probe.

[0028] The above is only the preferred embodiment of the utility model, and it should be pointed out that for those skilled in the art, without departing from the structure of the utility model, a number of modifications and improvements can be made, which will not affect the effect and practicality of the utility model.

Claims

1. A multi-functional SPECT performance measurement device, characterized by, The utility model provides a medical bed radiation source fixing device, including spring buckle (2), connecting piece (3), telescopic rod (4) and circular table container (5), the spring buckle (2) is equipped with the clamping leg (23) of clamping on medical bed (1), connecting piece (3) rotates the installation in spring buckle (2), telescopic rod (4) is detachably installed in connecting piece (3), circular table container (5) is detachably installed above telescopic rod (4), circular table container (5) is equipped with the cavity for placing radioactive source.

2. A multi-functional SPECT performance measurement device according to claim 1, wherein, The spring buckle (2) includes a mounting plate (21) and a tension spring (22), both ends of the mounting plate (21) are hingedly connected with clamping legs (23), both ends of the tension spring (22) are fixed on the two clamping legs (23), and a receiving groove for accommodating the tension spring (22) is formed in the lower side of the mounting plate (21).

3. A multi-functional SPECT performance measurement device according to claim 2, wherein, The clamping leg (23) is composed of a first rod (231) and a second rod (232), one end of the first rod (231) is hingedly connected with the mounting plate (21), the other end of the first rod (231) is fixedly connected with the second rod (232), an included angle (233) is arranged between the first rod (231) and the second rod (232), and the end of the tension spring (22) is fixed on the first rod (231).

4. A multi-functional SPECT performance measurement device according to claim 3, wherein, The included angle (233) is less than or equal to 90°.

5. The multi-functional SPECT performance measurement device of claim 2, wherein, The connecting piece (3) includes a universal ball (31), a mounting seat (32) and a plug-in pipe (33), the universal ball (31) is fixedly installed on the mounting plate (21), the mounting seat (32) is installed on the universal ball (31), the plug-in pipe (33) is fixedly installed on the mounting seat (32), the axial direction of the plug-in pipe (33) is perpendicular to the horizontal direction, and a jacking bolt is screwed on the side wall of the plug-in pipe (33).

6. The multi-functional SPECT performance measurement device of claim 1, wherein, The telescopic rod (4) is made of carbon fiber material.

7. The multi-functional SPECT performance measurement device of claim 1, wherein, The circular table container (5) includes a container body (51), an upper cover (52) and a lower cover (53), the container body (51) is provided with a cavity penetrating through the container body (51), the upper cover (52) is rotatably installed above the container body (51), and the lower cover (53) is rotatably installed below the container body (51); a hook (8) is fixed on the container body (51), a hook ring (6) is fixed on the end of the telescopic rod (4), and the hook (8) is hung in the hook ring (6).

8. A multi-functional SPECT performance measurement device according to claim 7, wherein, The container body (51), the upper cover (52) and the lower cover (53) are all made of tungsten alloy material.

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