Full-ring SPECT device

Abstract

The utility model relates to the technical field of medical imaging, in particular to a full-ring SPECT device which is characterized in that a plurality of probe assemblies are arranged on a rotating disc, images of different parts of a patient are acquired by the plurality of probe assemblies at the same time, acquisition efficiency is improved, image acquisition of the patient can be completed in a short time, and the rotating disc rotates around a rotating axis, so that the image acquisition efficiency is improved. The multiple probe assemblies are rotated by a certain angle at the same time, then images of a patient are collected at the same time, 360-degree all-directional images of the patient can be collected after multiple times of rotation, and therefore all-directional detection of the patient is rapidly completed, and the detection time is shortened.

Description

Technical Field

[0001] The present application relates to the field of medical imaging technology, and in particular to a full-ring SPECT device. Background Art

[0002] SPECT (Single-Photon Emission Computed Tomography) is a single-photon emission computed tomography device that detects the absorption distribution of radioactive drugs in the patient's body to display the metabolic activity of the examined organ or tissue and realize nuclear medicine clinical imaging judgment. However, during the acquisition process of traditional SPECT equipment, patients need to remain still for a long time, causing discomfort to patients. Therefore, it is necessary to develop a full-ring SPECT device that can quickly complete comprehensive testing of patients to reduce testing time.

[0003] There is currently no effective technical solution to the above problems. Utility Model Content

[0004] The purpose of the present application is to provide a full-ring SPECT device that can quickly complete a full range of patient testing and effectively reduce the testing time.

[0005] The present application provides a full-ring SPECT device, including a base assembly, a rotating assembly, and a plurality of probe assemblies;

[0006] The rotating assembly includes a turntable and a first bracket. The turntable is movably arranged on the first bracket and can rotate with its own central axis as the rotation axis. A plurality of probe assemblies are evenly arranged around the rotation axis. The probe assemblies can move in a radial direction on the turntable. The probe assemblies are used for SPECT imaging. The first bracket is slidably arranged on the base assembly and can move in a direction parallel to the rotation axis.

[0007] Through the above settings, the acquisition efficiency is improved, and the image acquisition of the patient can be completed in a shorter time, thereby quickly completing the comprehensive detection of the patient and reducing the detection time.

[0008] Optionally, nine probe assemblies are provided.

[0009] Through the above settings, a more comprehensive image can be collected at one time, reducing the number of times the turntable rotates, which is conducive to reducing the detection time.

[0010] Optionally, the base assembly includes a base frame, a sliding assembly and a first driving component, the sliding assembly is arranged on the base frame, the first bracket is connected to the sliding assembly, and the first driving component is used to drive the sliding assembly to move on the base frame to drive the first bracket to move.

[0011] Through the above arrangement, the first bracket can move in a direction parallel to the rotation axis, thereby adjusting the position of the probe assembly.

[0012] Optionally, the sliding assembly includes two first linear guides and two first sliders, the two first linear guides are respectively arranged on opposite sides of the base frame and parallel to the rotation axis, the two first sliders are respectively slidably arranged on the two first linear guides, and the two first sliders are fixedly connected to the first bracket.

[0013] Optionally, an angular contact turntable bearing and a second driving component are provided on the first bracket, the first bracket is connected to the turntable via the angular contact turntable bearing, and the second driving component is used for driving the turntable to rotate around the rotation axis.

[0014] Optionally, the second driving component includes a second servo motor and a gear, the output end of the second servo motor is drivingly connected to the gear, the turntable is coaxially connected to a gear ring, and the gear is meshed with the gear ring.

[0015] Optionally, the second driving component further includes a first reducer, the first reducer is connected to an output end of the second servo motor, and an output end of the first reducer is connected to the gear.

[0016] Optionally, a third driving component corresponding to the probe assembly is provided on the turntable, and the third driving component includes a third servo motor, a trapezoidal screw transmission pair and two second linear guides. The two second linear guides are relatively parallelly arranged on the turntable and extend along the radial direction of the turntable. The probe assembly is slidably arranged on the two second linear guides and connected to the trapezoidal screw transmission pair. The third servo motor is used to drive the trapezoidal screw transmission pair to move so as to drive the probe assembly to move radially along the turntable.

[0017] Optionally, the third driving component further includes a second reducer, the second reducer is connected to an output end of the third servo motor, and the output end of the second reducer is connected to the trapezoidal lead screw transmission pair.

[0018] Optionally, the probe assembly is provided with a crystal detector.

[0019] Beneficial effects: The full-ring SPECT device provided by the present application improves the acquisition efficiency by arranging multiple probe assemblies on a turntable, and the multiple probe assemblies simultaneously acquire images of different parts of the patient, and can complete the image acquisition of the patient in a relatively short time. The turntable is rotated around the rotation axis, so that the multiple probe assemblies are simultaneously rotated by a certain angle to acquire images of the patient at the same time. After multiple rotations, a 360° all-round image of the patient can be acquired, thereby quickly completing an all-round detection of the patient to reduce the detection time. The probe assembly can move in a radial direction on the turntable to adapt to different patient body shapes and different detection positions, thereby enhancing the versatility and adaptability of the full-ring SPECT device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the full-ring SPECT device provided in this application.

[0021] Figure 2 A schematic diagram of the positions of the first bracket and the second driving component provided in this application.

[0022] Figure 3 This is a schematic diagram of the positions of the turntable and gear ring provided in this application.

[0023] Figure 4 A schematic diagram of the positions of the turntable and multiple probe assemblies provided in this application.

[0024] Figure 5 This is a schematic structural diagram of the third driving component provided in this application.

[0025] Figure 6 This is a schematic diagram of the positions of the third driving component and the turntable provided in this application.

[0026] Explanation of reference numerals: 10. turntable; 11. first bracket; 12. probe assembly; 13. base frame; 14. first linear guide; 15. angular contact turntable bearing; 16. second servo motor; 17. gear; 18. gear ring; 19. first reducer; 20. third driving component; 21. third servo motor; 22. trapezoidal screw transmission pair; 23. second linear guide; 24. second reducer. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] Please refer to Figure 1-Figure 6 , the present application provides a full-ring SPECT device, including a base assembly, a rotating assembly and a plurality of probe assemblies 12;

[0030] The rotating assembly includes a turntable 10 and a first bracket 11. The turntable 10 is movably arranged on the first bracket 11, and the turntable 10 can rotate with its own central axis as the rotation axis. Multiple probe assemblies 12 are evenly arranged around the rotation axis. The probe assemblies 12 can move in a radial direction on the turntable 10. The probe assemblies 12 are used for SPECT imaging; the first bracket 11 is slidably arranged on the base assembly and can move in a direction parallel to the rotation axis.

[0031] Specifically, Figure 1 and Figure 4 As shown, by arranging multiple probe assemblies 12 on the turntable 10, the multiple probe assemblies 12 simultaneously collect images of different parts of the patient, thereby improving the collection efficiency, and being able to complete the image collection of the patient in a relatively short time. By rotating the turntable 10 around the rotation axis, the multiple probe assemblies 12 simultaneously rotate a certain angle to collect images of the patient at the same time. After multiple rotations, 360° all-round images of the patient can be collected, thereby quickly completing all-round detection of the patient to reduce the detection time, and facilitating the acquisition of a more complete and uniform data set (all-round collected data) to improve the image quality. The probe assembly 12 can move in the radial direction on the turntable 10 to adapt to different patient body shapes and different detection positions, thereby enhancing the versatility and adaptability of the full-ring SPECT device.

[0032] The full-ring SPECT device provided in the present application can provide better spatial resolution and image contrast due to the increase in the acquisition angle and the number of probe assemblies 12, which helps to more finely display the functional status of the patient's tissues and organs.

[0033] In some embodiments, nine probe assemblies 12 are provided.

[0034] Specifically, Figure 4 As shown, by providing nine probe assemblies 12, a more comprehensive image can be acquired at one time, and the number of rotations of the turntable 10 is reduced, which is beneficial to reducing the detection time.

[0035] In some embodiments, the base assembly includes a base frame 13, a sliding assembly and a first driving component. The sliding assembly is disposed on the base frame 13, the first bracket 11 is connected to the sliding assembly, and the first driving component is used to drive the sliding assembly to move on the base frame 13 to drive the first bracket 11 to move.

[0036] Specifically, by providing a sliding assembly, the first bracket 11 can move in a direction parallel to the rotation axis, thereby adjusting the position of the probe assembly 12 .

[0037] The first driving component may be a cylinder or a motor, which is not specifically limited here.

[0038] In some embodiments, the sliding assembly includes two first linear guides 14 and two first sliders. The two first linear guides 14 are respectively arranged on opposite sides of the base frame 13 and are parallel to the rotation axis. The two first sliders are respectively slidably arranged on the two first linear guides 14, and the two first sliders are fixedly connected to the first bracket 11.

[0039] Specifically, the sliding assembly has a simple structure, is easy to manufacture and assemble, and has good impact resistance, vibration absorption, and high load-bearing capacity.

[0040] In some embodiments, an angular contact turntable bearing 15 and a second driving component are provided on the first bracket 11. The first bracket 11 is connected to the turntable 10 via the angular contact turntable bearing 15. The second driving component is used to drive the turntable 10 to rotate around the rotation axis.

[0041] Specifically, by providing the angular contact turntable bearing 15 , the turntable 10 is driven to rotate around the rotation axis by the second driving component.

[0042] In some embodiments, the second driving component includes a second servo motor 16 and a gear 17 , the output end of the second servo motor 16 is drivingly connected to the gear 17 , the turntable 10 is coaxially connected to a gear ring 18 , and the gear 17 is meshed with the gear ring 18 .

[0043] Specifically, through the above arrangement, the rotation angle of the turntable 10 can be accurately controlled.

[0044] In some embodiments, the second driving component further includes a first reducer 19 , which is connected to an output end of the second servo motor 16 , and an output end of the first reducer 19 is connected to the gear 17 .

[0045] Specifically, by providing the first reducer 19 , it is helpful to reduce the speed at which the second servo motor 16 outputs to the turntable 10 , which is helpful to improve the rotation accuracy.

[0046] In some embodiments, a third driving component 20 corresponding to the probe assembly 12 is provided on the turntable 10, and the third driving component 20 includes a third servo motor 21, a trapezoidal screw transmission pair 22 and two second linear guides 23. The two second linear guides 23 are relatively parallelly arranged on the turntable 10 and extend along the radial direction of the turntable 10. The probe assembly 12 is slidably arranged on the two second linear guides 23 and connected to the trapezoidal screw transmission pair 22. The third servo motor 21 is used to drive the trapezoidal screw transmission pair 22 to move to drive the probe assembly 12 to move radially along the turntable 10.

[0047] Specifically, Figure 5-Figure 6 As shown, by providing the third driving component 20, the probe assembly 12 can be moved radially along the turntable 10, which can adapt to different patient body shapes and different detection positions, thereby enhancing the versatility and adaptability of the full-ring SPECT device. This enables the full-ring SPECT device to be used in more occasions and provides a wider range of applications.

[0048] The trapezoidal lead screw transmission pair 22 is a prior art and is not specifically limited here.

[0049] In some embodiments, the third driving component 20 further includes a second reducer 24 , which is connected to an output end of the third servo motor 21 , and an output end of the second reducer 24 is connected to the trapezoidal lead screw transmission pair 22 .

[0050] Specifically, by providing the second reducer 24 , it is helpful to reduce the speed output by the third servo motor 21 to the probe assembly 12 moving radially along the turntable 10 , which is helpful to improve the movement accuracy.

[0051] In some embodiments, the probe assembly 12 is provided with a crystal detector.

[0052] Specifically, SPECT imaging is achieved by providing a crystal detector in the probe assembly 12 .

[0053] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0054] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A full ring SPECT device, characterized in that: It includes a base assembly, a rotating assembly and a plurality of probe assemblies (12); The rotating assembly comprises a rotating disk (10) and a first bracket (11); the rotating disk (10) is movably arranged on the first bracket (11), and the rotating disk (10) can rotate with its own central axis as the rotating axis; a plurality of probe assemblies (12) are evenly arranged around the rotating axis; the probe assemblies (12) can move in a radial direction on the rotating disk (10); and the probe assemblies (12) are used for SPECT imaging; and the first bracket (11) is slidably arranged on the base assembly and can move in a direction parallel to the rotating axis.

2. The full ring SPECT device according to claim 1, characterized in that: Nine probe assemblies (12) are provided.

3. The full ring SPECT device according to claim 1, characterized in that: The base assembly comprises a base frame (13), a sliding assembly and a first driving component, the sliding assembly being arranged on the base frame (13), the first bracket (11) being connected to the sliding assembly, and the first driving component being used to drive the sliding assembly to move on the base frame (13) to drive the first bracket (11) to move.

4. The full ring SPECT device according to claim 3, characterized in that: The sliding assembly comprises two first linear guide rails (14) and two first sliders, the two first linear guide rails (14) are respectively arranged on two opposite sides of the base frame (13) and are parallel to the rotation axis, the two first sliders are respectively slidably arranged on the two first linear guide rails (14), and the two first sliders are fixedly connected to the first bracket (11).

5. The full ring SPECT device according to claim 1, characterized in that: An angular contact turntable bearing (15) and a second driving component are provided on the first bracket (11); the first bracket (11) is connected to the turntable (10) via the angular contact turntable bearing (15); and the second driving component is used to drive the turntable (10) to rotate around the rotation axis.

6. The full ring SPECT device according to claim 5, characterized in that: The second driving component comprises a second servo motor (16) and a gear (17); the output end of the second servo motor (16) is drivingly connected to the gear (17); the rotating disk (10) is coaxially connected to a gear ring (18); and the gear (17) is meshed with the gear ring (18).

7. The full ring SPECT device according to claim 6, characterized in that: The second driving component further comprises a first reducer (19), the first reducer (19) being connected to an output end of the second servo motor (16), and the output end of the first reducer (19) being connected to the gear (17).

8. The full ring SPECT device according to claim 1, characterized in that: The turntable (10) is provided with a third driving component (20) corresponding to the probe assembly (12) one by one. The third driving component (20) comprises a third servo motor (21), a trapezoidal screw transmission pair (22) and two second linear guide rails (23). The two second linear guide rails (23) are relatively parallelly arranged on the turntable (10) and extend along the radial direction of the turntable (10). The probe assembly (12) is slidably arranged on the two second linear guide rails (23) and connected to the trapezoidal screw transmission pair (22). The third servo motor (21) is used to drive the trapezoidal screw transmission pair (22) to move so as to drive the probe assembly (12) to move along the radial direction of the turntable (10).

9. The full ring SPECT device according to claim 8, characterized in that: The third driving component (20) further comprises a second reducer (24), wherein the second reducer (24) is connected to an output end of the third servo motor (21), and the output end of the second reducer (24) is connected to the trapezoidal lead screw transmission pair (22).

10. The full ring SPECT device according to claim 1, characterized in that: The probe assembly (12) is provided with a crystal detector.

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