Stable protection device for rotation of detection bin of mobile CT (Computed Tomography) machine

Abstract

The utility model relates to the field of CT machines, in particular to a mobile CT machine detection bin rotation stable protection device which comprises a rotation assembly, a monitoring assembly and a control center. The rotating assembly comprises a base, a driving piece and a rotating shaft, the driving piece is installed on the base, the driving piece drives the rotating shaft to rotate, and the rotating shaft is used for being fixedly connected with a detection bin; the monitoring assembly is arranged at the rotating shaft and used for monitoring the rotating speed of the rotating shaft; the control center is electrically connected with the driving part and the monitoring assembly and obtains rotation data fed back by the monitoring assembly. When the rotating speed of the rotating shaft is abnormal, the control center controls the driving part to stop; when the rotating speed of the rotating shaft is normal, the control center controls the driving part to operate normally. In the running process of the CT machine, the control center can make reaction adjustment in real time according to rotation data, fed back by the monitoring assembly, of the rotating shaft.

Description

Technical Field

[0001] This application relates to the field of CT machines, and particularly to a rotation stability protection device for the detection chamber of a mobile CT machine. Background Art

[0002] With the continuous progress of medical technology, mobile CT machines have become one of the important devices in the medical field. Mobile CT machines play an irreplaceable role in many medical scenarios with their flexible and convenient characteristics. For example, in the emergency department, mobile CT machines can quickly scan parts of patients such as the head, chest and abdomen, saving precious time for rescue. In the operating room, mobile CT machines can provide real-time images for surgeries, helping doctors more accurately locate lesions. In addition, mobile CT machines are widely used in fields such as tumor treatment and rehabilitation medicine. The advantages of mobile CT machines lie in their flexibility and convenience. Due to their small size and mobility, they can be quickly transferred between various departments in the hospital, greatly improving the diagnosis and treatment efficiency.

[0003] Mobile CT machines usually include a rotating mechanism and a detection chamber, and the rotating mechanism drives the detection chamber to rotate. X-rays are emitted during the rotation of the detection chamber, enabling the scanning and detection of the human body to be completed. Since mobile CT machines need to be frequently relocated, there are relatively high requirements for the uniform and stable rotation of the detection chamber. If the detection chamber is unstable during rotation, it may cause deviations in the scanning results and affect the detection accuracy. Utility Model Content

[0004] To solve the problem that the instability during the rotation of the detection chamber may cause deviations in the scanning results and affect the detection accuracy as described above, this application provides a rotation stability protection device for the detection chamber of a mobile CT machine.

[0005] A rotation stability protection device for the detection chamber of a mobile CT machine provided by this application adopts the following technical solutions:

[0006] A rotation stability protection device for the detection chamber of a mobile CT machine includes a rotating assembly, a monitoring assembly and a control center; the rotating assembly includes a base, a driving member and a rotating shaft, the driving member is installed on the base, the driving member drives the rotating shaft to rotate, and the rotating shaft is used for fixedly connecting with the detection chamber; the monitoring assembly is arranged at the rotating shaft and is used for monitoring the rotation speed of the rotating shaft; the control center is electrically connected to the driving member and the monitoring assembly respectively, and obtains the rotation data fed back by the monitoring assembly; when the rotation speed of the rotating shaft is abnormal, the control center controls the driving member to stop; when the rotation speed of the rotating shaft is normal, the control center controls the driving member to operate normally.

[0007] By adopting the above technical solution, during the operation of the CT machine, the rotating assembly drives the detection chamber to rotate, and the monitoring assembly can monitor the rotation of the rotating shaft in real time. The control center can make real-time reaction adjustments according to the rotation data of the rotating shaft fed back by the monitoring assembly. When it is detected that the rotation of the detection chamber is unstable, the driving part stops at this time, which is convenient for relevant staff to re-debug the equipment and ensure the stability of the uniform rotation of the detection chamber.

[0008] Optionally, the monitoring assembly includes a photoelectric inductor and a light blocking strip. The light blocking strip is fixed on the side wall of the rotating shaft, and the photoelectric inductor is provided with a photosensitive groove. The light blocking strip approaches or moves away from the photosensitive groove; the photoelectric inductor records the passing time of the light blocking strip in the photosensitive groove. When the difference between the passing time and the preset time is within the allowable deviation, the rotation speed of the rotating shaft is normal; otherwise, it is abnormal.

[0009] By adopting the above technical solution, according to the passing time of the light blocking strip in the photoelectric inductor, the rotation speed of the rotating shaft at this time can be obtained. Therefore, the cooperation of the photoelectric inductor and the light blocking strip can feedback the rotation speed of the rotating shaft. At this time, the control center can make corresponding adjustments according to the rotation speed of the rotating shaft to ensure the uniform rotation of the detection chamber during detection.

[0010] Optionally, a plurality of the light blocking strips are provided, and the plurality of light blocking strips are all fixed on the peripheral wall of the rotating shaft.

[0011] By adopting the above technical solution, the plurality of light blocking strips can feedback the rotation speed of the rotating shaft at different times, so that the monitoring accuracy of the rotation of the detection chamber can be further enhanced. If the passing time of some light blocking strips in the induction groove does not conform to the preset time, it indicates that the rotation of the detection chamber is abnormal.

[0012] Optionally, the plurality of light blocking strips are arranged in a circumferential equidistant array on the periphery of the rotating shaft.

[0013] By adopting the above technical solution, the circumferential equidistant array arrangement of the light blocking strips can ensure the uniformity of the force on the rotating shaft during rotation, further ensure the stability of the rotation of the rotating shaft, and thus ensure the stability of the rotation of the detection chamber.

[0014] Optionally, it further includes a reset assembly electrically connected to the control center. The reset assembly is used to reset the detection chamber to the initial position; when the rotation speed of the rotating shaft is abnormal, the control center first controls the driving part to stop, and then controls the detection chamber to reset through the reset assembly.

[0015] By adopting the above technical solution, when the rotation speed of the rotating shaft is abnormal, the control center first controls the driving member to stop, and then controls the detection chamber to reset through the reset assembly, which is convenient for operating the CT machine again to re-detect the patient, thereby improving the accuracy of the scanning detection.

[0016] Optionally, the reset assembly includes a signal emitter and a signal receiver. The signal emitter is fixed on the base, and the signal receiver is fixed on the surface of the detection chamber close to the base. When the rotation speed of the rotating shaft is abnormal, the control center controls the driving member to rotate until the signal receiver receives the signal emitted by the signal emitter.

[0017] By adopting the above technical solution, the positions of the signal emitter and the signal receiver can effectively ensure the timely reset of the detection chamber, facilitating the subsequent detection work.

[0018] Optionally, the rotating assembly further includes a plurality of supports, and the rotating shaft is rotatably connected to each of the plurality of supports.

[0019] By adopting the above technical solution, compared with setting one support, supporting the rotating shaft through a plurality of supports can enhance the stability of the rotation of the rotating shaft.

[0020] Optionally, it further includes a connecting plate. The rotating shaft is fixedly connected to the connecting plate, and the connecting plate is used for fixedly connecting to the detection chamber. A plurality of weight-reducing holes are formed on one side of the connecting plate close to the driving member.

[0021] By adopting the above technical solution, by forming weight-reducing holes on the connecting plate, the driving burden of the driving member can be reduced, and further the stability of the rotation of the detection chamber can be enhanced.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. During the operation of the CT machine, the rotating assembly drives the detection chamber to rotate, and the monitoring assembly can monitor the rotation of the rotating shaft in real time; the control center can make real-time reaction adjustments according to the rotation data of the rotating shaft fed back by the monitoring assembly; when it is detected that the rotation of the detection chamber is unstable, at this time the driving member stops, which is convenient for relevant staff to re-debug the equipment to ensure the stability of the uniform rotation of the detection chamber;

[0024] 2. According to the passing time of the light-blocking strip in the photoelectric sensor, the rotation speed of the rotating shaft at this time can be obtained; therefore, the cooperation of the photoelectric sensor and the light-blocking strip can feedback the rotation speed of the rotating shaft; at this time, the control center can make corresponding adjustments according to the rotation speed of the rotating shaft to ensure that the detection chamber rotates at a uniform speed during detection;

[0025] 3. When the rotation speed of the rotating shaft is abnormal, the control center first controls the driving part to stop, and then controls the detection bin to reset through the reset component, which is convenient for operating the CT machine again to re-detect the patient, thereby improving the accuracy of the scanning detection. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of the rotation stability protection device of the detection bin of the mobile CT machine in the embodiment of the present application after being assembled on the frame of the mobile CT machine.

[0027] Figure 2 It is a side view (excluding the control center) of the rotation stability protection device of the detection bin of the mobile CT machine in the embodiment of the present application.

[0028] Figure 3 It is Figure 1 The enlarged schematic diagram at position A in

[0029] Figure 4 It is Figure 3 The enlarged schematic diagram at position B in

[0030] Description of the Reference Numerals:

[0031] 1. Rotating component; 11. Base; 12. Driving part; 13. Rotating shaft; 14. Support; 2. Monitoring component; 21. Photoelectric inductor; 211. Photosensitive groove; 22. Light blocking strip; 3. Control center; 4. Reset component; 41. Signal emitter; 42. Signal receiver; 5. Connecting plate; 51. Weight reduction hole. Detailed Embodiment

[0032] The following Figure 1 - Figure 4 in conjunction with the attached

[0033] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0034] The embodiment of the present application discloses a rotation stability protection device for the detection bin of a mobile CT machine.

[0035] Refer to Figure 1A mobile CT machine detection chamber rotation stability protection device comprises a rotation component 1, a monitoring component 2, a control center 3 and a reset component 4. The rotation component 1 is used to drive the detection chamber to rotate, and the rotation component 1, the monitoring component 2 and the reset component 4 are all electrically connected to the control center 3. The above structures cooperate with each other to timely feedback the rotation stability of the detection chamber and make corresponding adjustments.

[0036] Reference Figure 1 and Figure 2 The rotating assembly 1 includes a base 11, a driving member 12 and a rotating shaft 13. The driving member 12 is mounted on the base 11, and the driving member 12 drives the rotating shaft 13 to rotate, and the rotating shaft 13 is used to be fixedly connected to the detection chamber. In this embodiment, the driving member 12 uses a high-precision servo motor. The output end of the driving member 12 is connected to the rotating shaft 13 by belt transmission. Starting the driving member 12 can drive the rotating shaft 13 to rotate, thereby driving the detection chamber to rotate, and X-rays are emitted in the detection chamber to scan and detect the human body and accurately locate the lesion.

[0037] Reference Figure 1 and Figure 2 The rotating assembly 1 further includes a plurality of supports 14, and the rotating shaft 13 is rotatably connected to the plurality of supports 14. The rotatable connection can be achieved by setting a bearing. The plurality of supports 14 can provide multi-point support for the rotating shaft 13, and can enhance the stability of the rotation of the rotating shaft 13. In this embodiment, two supports 14 are provided, and in other embodiments, other numbers may also be provided.

[0038] Reference Figure 2 The monitoring component 2 is disposed at the rotating shaft 13 and is used to monitor the rotation speed of the rotating shaft 13. The control center 3 is electrically connected to the driving member 12 and the monitoring component 2 respectively, and obtains the rotation data fed back by the monitoring component 2; when the rotation speed of the rotating shaft 13 is abnormal, the control center 3 controls the driving member 12 to stop; when the rotation speed of the rotating shaft 13 is normal, the control center 3 controls the driving member 12 to operate normally.

[0039] Reference Figure 3 and Figure 4 The monitoring component 2 includes a photoelectric sensor 21 and a light shielding bar 22. The light shielding bar 22 is fixed to the side wall of the rotating shaft 13. The photoelectric sensor 21 is provided with a photosensitive groove 211. The light shielding bar 22 approaches or moves away from the photosensitive groove 211. The photoelectric sensor 21 records the passage time of the light shielding bar 22 in the photosensitive groove 211. When the difference between the passage time and the preset time is within the allowable deviation, the rotation speed of the rotating shaft 13 is normal; otherwise, it is abnormal.

[0040] Among them, the passing time of the light-blocking strip 22 in the photosensitive groove 211 can indirectly reflect the rotation speed of the rotating shaft 13. The preset time refers to the time when the detection chamber rotates at a preset speed, so that the light-blocking strip 22 rotates through the light-blocking groove at the preset speed. When the difference between the passing time and the preset time exceeds the allowable deviation, it indicates that the rotation speed is abnormal at this time. The control center 3 controls the driving member 12 to stop driving the rotation of the rotating shaft 13, and relevant staff can check the problem in time and re-adjust the equipment.

[0041] In this embodiment, a plurality of light-blocking strips 22 are provided, and the plurality of light-blocking strips 22 are all fixed on the peripheral wall of the rotating shaft 13. The plurality of light-blocking strips 22 can reflect the rotation speed of the rotating shaft 13 at different times, so that the monitoring intensity of the rotation of the detection chamber can be further enhanced. If the passing time of some light-blocking strips 22 in the photosensitive groove 211 does not conform to the preset time, it indicates that the rotation of the detection chamber is abnormal. On the contrary, if the passing time of the light-blocking strips 22 in the photosensitive groove 211 is within the allowable deviation of the preset time, it indicates that the rotation of the detection chamber is normal.

[0042] It can be understood that the more the number of the light-blocking strips 22, the more monitoring data of the rotation speed of the rotating shaft 13, which can further improve the monitoring intensity of the rotation stability of the detection chamber, make the monitoring of the rotation speed of the rotating shaft 13 more accurate, and thus ensure the accuracy of CT scanning.

[0043] Furthermore, the plurality of light-blocking strips 22 are arranged in a circumferential equidistant array on the periphery of the rotating shaft 13. Since the rotating shaft 13 rotates, when the force on its periphery is uneven, the rotating shaft 13 may generate a certain offset vibration. The circumferential equidistant array arrangement of the light-blocking strips 22 can ensure the uniformity of the force on the rotating shaft 13 during rotation, and further ensure the stability of the rotation of the rotating shaft 13.

[0044] Refer to Figure 1 and Figure 2 , the reset assembly 4 is electrically connected to the control center 3, and the reset assembly 4 is used to reset the detection chamber to the initial position; when the rotation speed of the rotating shaft 13 is abnormal, the control center 3 first controls the driving member 12 to stop, and then controls the detection chamber to reset through the reset assembly 4.

[0045] Specifically, refer to Figure 2, the reset component 4 includes a signal emitter 41 and a signal receiver 42. The signal emitter 41 is fixed on the base 11, and the signal receiver 42 is fixed on the side of the detection chamber close to the base 11. When the rotation speed of the rotating shaft 13 is abnormal, the control center 3 controls the driving member 12 to rotate until the signal receiver 42 receives the signal emitted by the signal emitter 41. Therefore, when the monitoring component 2 detects that the rotation speed of the rotating shaft 13 is abnormal, the control center 3 first controls the driving member 12 to stop running. Then the control center 3 controls the driving member 12 to drive the rotating shaft 13 to rotate, so that the signal receiver 42 on the detection chamber rotates accordingly until the signal receiver 42 can receive the signal emitted by the signal emitter 41. At this time, the driving member 12 stops driving the detection chamber to rotate and the detection chamber moves to the initial position.

[0046] In an alternative embodiment, referring to Figure 3 , it further includes a connecting plate 5. The rotating shaft 13 is fixedly connected to the connecting plate 5, and the connecting plate 5 is used to be fixedly connected to the detection chamber. A plurality of weight-reducing holes 51 are formed on one side of the connecting plate 5 close to the driving member 12. By forming the weight-reducing holes 51, the driving burden of the driving member 12 can be reduced, so as to further ensure the rotation stability of the detection chamber.

[0047] The implementation principle of this embodiment is as follows: The control center 3 controls the driving member 12 to start to drive the rotating shaft 13 to rotate, thereby driving the detection chamber to rotate, and the detection chamber can complete the scanning of the human body by rotating. During the rotation of the detection chamber, a plurality of light-blocking strips 22 pass through the photosensitive slots 211 in sequence. When the passing time of at least one light-blocking strip 22 through the photosensitive slot 211 is not within the allowable deviation range from the preset time, it indicates that the detection chamber does not rotate uniformly and stably. At this time, the control center 3 controls the driving member 12 to stop first. Then the control center 3 controls the detection chamber to reset, and controls the detection chamber to move to the initial position through the signal emitter 41 and the signal receiver 42. If the passing time of the light-blocking strip 22 through the photosensitive slot 211 is within the allowable deviation range from the preset time, the driving member 12 normally drives the detection chamber to rotate until the scanning detection is completed.

[0048] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rotation stability protection device for a mobile CT machine detection chamber, characterized in that: The invention comprises a rotating assembly (1), a monitoring assembly (2) and a control center (3); the rotating assembly (1) comprises a base (11), a driving member (12) and a rotating shaft (13); the driving member (12) is mounted on the base (11); the driving member (12) drives the rotating shaft (13) to rotate; the rotating shaft (13) is used to be fixedly connected to a detection chamber; the monitoring assembly (2) is arranged at the rotating shaft (13) and is used to monitor the rotation speed of the rotating shaft (13); the control center (3) is electrically connected to the driving member (12) and the monitoring assembly (2) respectively, and obtains the rotation data fed back by the monitoring assembly (2); when the rotation speed of the rotating shaft (13) is abnormal, the control center (3) controls the driving member (12) to stop; when the rotation speed of the rotating shaft (13) is normal, the control center (3) controls the driving member (12) to operate normally.

2. The rotation stability protection device for the mobile CT machine detection chamber according to claim 1 is characterized in that: The monitoring component (2) comprises a photoelectric sensor (21) and a light shielding bar (22), wherein the light shielding bar (22) is fixed to a side wall of the rotating shaft (13), and the photoelectric sensor (21) is provided with a photosensitive groove (211), and the light shielding bar (22) approaches or moves away from the photosensitive groove (211); the photoelectric sensor (21) records the passage time of the light shielding bar (22) in the photosensitive groove (211), and when the difference between the passage time and a preset time is within an allowable deviation, the rotation speed of the rotating shaft (13) is normal; otherwise, it is abnormal.

3. The rotation stability protection device for the mobile CT machine detection chamber according to claim 2 is characterized in that: A plurality of the light shielding strips (22) are provided, and the plurality of the light shielding strips (22) are all fixed to the peripheral wall of the rotating shaft (13).

4. The rotation stability protection device for the mobile CT machine detection chamber according to claim 3 is characterized in that: The plurality of light shielding strips (22) are arranged in a circumferentially equidistant array on the circumferential side of the rotating shaft (13).

5. The rotation stability protection device for the mobile CT machine detection chamber according to claim 1 is characterized in that: It also includes a reset component (4) electrically connected to the control center (3), the reset component (4) being used to reset the detection chamber to an initial position; when the rotation speed of the rotating shaft (13) is abnormal, the control center (3) first controls the driving member (12) to stop, and then controls the detection chamber to reset through the reset component (4).

6. The rotation stability protection device for the mobile CT machine detection chamber according to claim 5 is characterized in that: The reset component (4) comprises a signal transmitter (41) and a signal receiver (42), wherein the signal transmitter (41) is fixed on the base (11), and the signal receiver (42) is fixed on a side of the detection chamber close to the base (11); when the rotation speed of the rotating shaft (13) is abnormal, the control center (3) controls the driving member (12) to rotate until the signal receiver (42) receives the signal emitted by the signal transmitter (41).

7. The rotation stability protection device for the mobile CT machine detection chamber according to claim 1 is characterized in that: The rotating assembly (1) further comprises a plurality of supports (14), and the rotating shaft (13) is rotatably connected to the plurality of supports (14).

8. The rotation stability protection device for the mobile CT machine detection chamber according to claim 1 is characterized in that: It also comprises a connecting plate (5), the rotating shaft (13) being fixedly connected to the connecting plate (5), the connecting plate (5) being used for being fixedly connected to the detection chamber, and a plurality of weight-reducing holes (51) being formed on a side of the connecting plate (5) close to the driving member (12).

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