Scanning station structure with switching function

Abstract

The utility model provides a scanning station structure with a switching function, and particularly relates to the technical field of medical instruments, the scanning station structure with the switching function comprises a cross-shaped pressing plate mechanism and a rotating molybdenum target mechanism, the cross-shaped pressing plate mechanism comprises an XY motion platform, the XY motion platform is connected with a pressing plate connecting plate, and the pressing plate connecting plate is connected with the rotating molybdenum target mechanism. A pressing plate is fixed to the top of the pressing plate connecting plate. The X-Y motion platform is provided with a pressing plate, the X-Y motion platform is provided with a rotating molybdenum target mechanism, the rotating molybdenum target mechanism comprises an electric control rotating table, the output end of the top of the electric control rotating table is provided with a rear collimator supporting plate, and the rear collimator supporting plate is provided with a collimator. And the switching between the mammary gland ct station and the mammary gland molybdenum target station can be realized to complete different detections.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a scanning station structure with a switching function. Background Art

[0002] Breast CT is an X-ray computed tomography scan that provides more detailed images and helps detect small breast lesions, especially in dense breasts. In addition, breast CT can provide three-dimensional images to better assess the shape and location of lesions. However, due to the relatively high radiation dose of breast CT, it is not suitable for frequent screening.

[0003] Mammography uses X-rays to image the breast. It can detect calcifications and masses within the breast, playing a crucial role in the early detection of breast cancer. Mammography offers the advantage of a relatively low radiation dose, making it suitable as a routine breast cancer screening method. However, mammography is less sensitive in dense breasts, making it prone to missing some minor lesions.

[0004] Usually, the corresponding examination method is selected based on the actual situation. Since the detection principles of breast CT and breast mammography are different, different scanners are usually required to complete them, or a single scanner is debugged and then different tests are performed separately, which reduces the efficiency of the scanner during scanning.

[0005] In view of this, the utility model provides a scanning station structure with a switching function, which can realize the interchange of breast CT position and breast mammography position to improve the detection efficiency of the scanner. Utility Model Content

[0006] In order to solve the problem of low efficiency during different detections, the utility model proposes a scanning station structure with a switching function.

[0007] The utility model is achieved through the following technical solutions:

[0008] The utility model proposes a scanning station structure with a switching function, which includes a cross-pressing plate mechanism and a rotating molybdenum target mechanism, wherein:

[0009] The cross-pressing plate mechanism includes an XY motion platform, a pressing plate connecting plate is connected to the XY motion platform, and a pressing plate is fixed on the top of the pressing plate connecting plate;

[0010] The rotating molybdenum target mechanism includes an electrically controlled rotating table, an output end of the top of the electrically controlled rotating table is provided with a rear collimator support plate, one side of the rear collimator support plate is fixedly connected to the output end of the electrically controlled rotating table, and a collimator is provided on the rear collimator support plate;

[0011] The cross pressure plate mechanism and the rotating molybdenum target mechanism are arranged between the X-ray source and the detector device. The XY motion platform is used to drive the pressure plate to move to the imaging area between the X-ray source and the detector device and move to one side of the detector, or drive the pressure plate to move outside the imaging area between the X-ray source and the detector device. The top of the electrically controlled rotating table is used to drive the collimator to rotate horizontally and make one side of the collimator support plate parallel to or perpendicular to the detector device.

[0012] Furthermore, the XY motion platform includes at least one X-axis drive mechanism and one Y-axis drive mechanism, the pressure plate connecting plate is arranged on the output end of the Y-axis drive mechanism, and the Y-axis drive mechanism is fixed on the output end of the X-axis drive mechanism.

[0013] Furthermore, the Y-axis drive mechanism includes a Y-axis motor, a Y-axis ball screw, a Y-axis guide rail and a Y-axis fixed plate, and the Y-axis motor and the Y-axis ball screw are respectively provided at both ends of the Y-axis fixed plate, the Y-axis motor is connected to the ball screw, and a pressure plate connecting plate is fixed on the ball screw, and Y-axis guide rails cooperating with the pressure plate connecting plate are respectively provided on both sides of the Y-axis ball screw.

[0014] Furthermore, the X-axis drive mechanism includes an X-axis motor, an X-axis ball screw, an X-axis fixed plate, an X-axis guide rail, a reducer and an electromagnetic clutch. The X-axis motor and the X-axis ball screw are fixed at both ends of the X-axis fixed plate respectively. The output end of the X-axis motor is connected to the reducer, the electromagnetic clutch and the X-axis ball screw in sequence. X-axis guide rails that cooperate with the Y-axis fixed plate are provided on both sides of the X-axis ball screw.

[0015] Furthermore, a pressure plate brake device is provided on the side of the X-direction ball screw away from the X-direction motor.

[0016] Furthermore, a first collimation brake device and a second collimation brake device are provided on two adjacent sides of the electrically controlled rotating table. The first collimation brake device and the second collimation brake device are respectively provided at one end of the detector device away from the electrically controlled rotating table and one end of the X-ray source side close to the electrically controlled rotating table.

[0017] Beneficial effects of the utility model:

[0018] The scanning station structure with switching function proposed by the utility model utilizes a rotating molybdenum target mechanism and a cross pressure plate mechanism to respectively change the positions of the collimator and the pressure plate, so that the collimator and the pressure plate enter or leave the imaging area, and can complete the switching of the breast molybdenum target and breast CT stations to complete different tests, has higher practicality and applicability, and the instrument occupies less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural diagram of the scanning station structure with switching function in the multifunctional breast CT machine of the present invention;

[0020] Figure 2 This is the overall structural diagram of the breast CT detection of the scanning station structure with switching function of the utility model;

[0021] Figure 3 This is the overall structural diagram of the scanning station structure with switching function during breast mammography detection of the utility model;

[0022] Figure 4 This is the overall structural diagram of the cross-pressing plate mechanism of the scanning station structure with switching function of the utility model;

[0023] Figure 5 This is a diagram of the rotating molybdenum target mechanism of the scanning station structure with a switching function of the utility model;

[0024] In the figure: X-ray source 1, detector device 2, breast support cup 3, multifunctional breast CT machine body 4, cross pressure plate mechanism 5, XY motion platform 51, X-axis driving mechanism 511, X-guide rail 5111, X-axis motor 5112, X-axis ball screw 5113, reducer 5114, electromagnetic clutch 5115, X-axis fixed plate 5116, Y-axis driving mechanism 512, Y-guide rail 5121, Y-axis motor 5122, Y-axis ball screw 5123, Y-axis fixed plate 5124, pressure plate brake device 52, pressure plate 53, pressure plate connecting plate 54, rotating molybdenum target mechanism 6, electric control rotating stage 61, collimator 62, collimator support plate 63, first collimation brake device 64, second collimation brake device 65;

[0025] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0026] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0027] Please refer to Figure 1-Figure 5 The present invention proposes a scanning station structure with a switching function, which includes a cross-pressing plate mechanism 5 and a rotating molybdenum target mechanism 6, wherein:

[0028] The cross-pressing plate mechanism 5 includes an XY motion platform 51 , a press plate connecting plate 54 is connected to the XY motion platform 51 , and a press plate 53 is fixed on the top of the press plate connecting plate 54 ;

[0029] The rotating molybdenum target mechanism 6 includes an electrically controlled rotating table 61. A rear collimator support plate 63 is provided at the output end of the top of the electrically controlled rotating table 61. One side of the rear collimator support plate 63 is fixedly connected to the output end of the electrically controlled rotating table 61. A collimator 62 is provided on the rear collimator support plate 63.

[0030] The cross pressure plate mechanism 5 and the rotating molybdenum target mechanism 6 are arranged between the X-ray source 1 and the detector device 2. The XY motion platform 51 is used to drive the pressure plate 53 to move to the imaging area between the X-ray source 1 and the detector device 2 and move toward the side of the detector device 2, or drive the pressure plate 53 to move outside the imaging area between the X-ray source 1 and the detector device 2. The top of the electric-controlled rotating table 61 is used to drive the collimator 62 to rotate horizontally and make one side of the collimator support plate 63 parallel to or perpendicular to the detector device 2.

[0031] In this embodiment:

[0032] The XY motion platform 51 is used to drive the pressing plate connecting plate 54 and the pressing plate 53 to move in the X-axis and Y-axis directions;

[0033] The electrically controlled rotating platform 61 is used to drive the collimator 62 to rotate around the rotating molybdenum target mechanism 6;

[0034] The detector device 2 is used to collect data and form images;

[0035] In a specific embodiment, the cross pressure plate mechanism 5 and the electric control rotating table 61 are installed inside the multifunctional breast CT machine body 4, the X-ray source 1 and the detector device 2 are respectively arranged on both sides of the multifunctional breast CT machine body 4 and are on the same horizontal plane as the pressure plate 53 and the collimator 62. The imaging area is between the X-ray source 1 and the detector device 2, and the breast cup 3 is fixed on the imaging area. When performing breast CT detection, the pressure plate 53 is not in the imaging area at a position away from the breast cup 3. The collimator 62 is parallel to the detector device 2 under the drive of the electric control rotating table 61, and then the X-ray source 1 is used to perform transmission imaging of the object to be tested in the breast cup 3; when performing breast mammography detection, the breast cup 3 is removed, and the XY motion platform 51 is used to drive the pressure plate 53 in the Y-axis direction. The movement first moves to the imaging area, then the electrically controlled rotating table 61 rotates, and makes one side of the collimator 62 perpendicular to the detector device 2, and then the XY motion platform 51 drives the pressure plate 53 to move along the X-axis direction and move linearly in the detector direction, and squeezes the breast imaging from both sides with the detector device 2; when resetting, the pressure plate 53 first moves along the X-axis direction to a position away from the detector device 2, and then the pressure plate 53 moves out of the imaging area in the Y direction, and finally the electrically controlled rotating platform rotates, and the collimator 62 rotates to a position parallel to the detector device 2, preparing for the next CT imaging. The scanner station switching device provided by the present invention can realize the interchange of the breast CT position and the breast mammography position to improve the detection efficiency of the scanner, and the entire instrument is also more compact.

[0036] Furthermore, the XY motion platform 51 includes at least one X-axis drive mechanism 511 and one Y-axis drive mechanism 512, the pressure plate connecting plate 54 is provided on the output end of the Y-axis drive mechanism 512, and the Y-axis drive mechanism 512 is fixed on the output end of the X-axis drive mechanism 511;

[0037] The Y-axis drive mechanism 512 includes a Y-axis motor 5122, a Y-axis ball screw 5123, a Y-axis guide rail 5121, and a Y-axis fixed plate 5124. The Y-axis fixed plate 5124 is provided with the Y-axis motor 5122 and the Y-axis ball screw 5123 at both ends. The Y-axis motor 5122 is connected to the ball screw. A pressure plate connecting plate 54 is fixed to the ball screw. Y-axis guide rails 5121 that cooperate with the pressure plate connecting plate 54 are provided on both sides of the Y-axis ball screw 5123.

[0038] The X-axis drive mechanism 511 includes an X-axis motor 5112, an X-axis ball screw 5113, an X-axis fixed plate 5116, an X-axis guide rail 5111, a reducer 5114 and an electromagnetic clutch 5115. The X-axis motor 5112 and the X-axis ball screw 5113 are fixed at both ends of the X-axis fixed plate 5116 respectively. The output end of the X-axis motor 5112 is connected to the reducer 5114, the electromagnetic clutch 5115 and the X-axis ball screw 5113 in sequence. X-axis guide rails 5111 that cooperate with the Y-axis fixed plate 5124 are arranged on both sides of the X-axis ball screw 5113.

[0039] In this embodiment:

[0040] The X-axis ball screw 5113 and the Y-axis ball screw 5123 are used to convert the motor rotation into linear motion;

[0041] The X-axis motor 5112 is used to provide power for the pressing plate 53 to move along the X-axis;

[0042] The Y-axis motor 5122 is used to provide power for the pressing plate 53 to move along the Y axis;

[0043] The electromagnetic clutch 5115 and the speed reducer 5114 are used to adjust the speed of the output of the X-axis motor 5112;

[0044] In a specific embodiment, the output end of the X-axis motor 5112 is transmitted to the X-axis ball screw 5113 through the electromagnetic clutch 5115 and the reducer 5114. The electromagnetic clutch 5115 and the reducer 5114 slow down the speed of the pressure plate 53 during extrusion imaging. The X-axis motor 5112 drives the X-axis ball screw 5113 to rotate, so that the X-axis ball screw 5113 drives the Y-axis fixed plate 5124 to move on the X-guide rail 5111, and the Y-axis motor 5122 on the Y-axis fixed plate 5124 drives the pressure plate connecting plate 54 to move on the Y guide rail 5121 through the Y-axis ball screw 5123. The pressure plate connecting plate 54 is adjusted by the X-axis motor 5112 and the Y-axis motor 5122, so that the pressure plate 53 moves in the X and Y directions.

[0045] In one embodiment, the X-axis driving mechanism 511 and the Y-axis driving mechanism 512 may also adopt other mechanisms, such as a slider screw or other mechanism capable of linear motion.

[0046] Furthermore, a pressure plate 53 brake device 52 is provided on the side of the X-direction ball screw 5113 away from the X-direction motor 5112.

[0047] In this embodiment:

[0048] The pressure plate 53 brake device 52 is used to provide braking for the pressure plate 53;

[0049] In a specific embodiment, after the pressing plate 53 moves to above the pressing plate 53 brake device 52, the X-direction motor 5112 and the Y-direction motor 5122 stop operating, so that the pressing plate 53 can stop after moving out of the imaging area.

[0050] Furthermore, a first collimation brake device 64 and a second collimation brake device 65 are provided on two adjacent sides of the electric-controlled rotating table 61. The first collimation brake device 64 and the second collimation brake device 65 are respectively arranged at one end of the detector device 2 away from the electric-controlled rotating table 61 and one end of the X-ray source 1 close to the electric-controlled rotating table 61.

[0051] In this embodiment:

[0052] The first collimation brake device 64 and the second collimation brake device 65 are used to provide braking for the collimator 62;

[0053] In a specific embodiment, when the electric-controlled rotating table 61 drives the collimator 62 to rotate to be perpendicular to the detector device 2, one side of the bottom of the collimator support plate 63 will contact the first collimation brake device 64, and the electric-controlled rotating table 61 will stop rotating. When the electric-controlled rotating table 61 drives the collimator 62 to rotate to be parallel to the detector device 2, one side of the bottom of the collimator support plate 63 will contact the second collimation brake device 65, and the electric-controlled rotating table 61 will stop rotating. The first collimation brake device 64 and the second collimation brake device 65 can limit the rotation range of the electric-controlled rotating table 61, thereby ensuring that the collimator 62 can be accurately switched between the two workstations.

[0054] Of course, the present invention may have many other implementations. Based on this implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present invention.

Claims

1. A scanning station structure with a switching function, characterized in that: It includes a cross pressure plate mechanism and a rotating molybdenum target mechanism, wherein: The cross-pressing plate mechanism includes an XY motion platform, a pressing plate connecting plate is connected to the XY motion platform, and a pressing plate is fixed on the top of the pressing plate connecting plate; The rotating molybdenum target mechanism includes an electrically controlled rotating table, an output end of the top of the electrically controlled rotating table is provided with a rear collimator support plate, one side of the rear collimator support plate is fixedly connected to the output end of the electrically controlled rotating table, and a collimator is provided on the rear collimator support plate; The cross pressure plate mechanism and the rotating molybdenum target mechanism are arranged between the X-ray source and the detector device. The XY motion platform is used to drive the pressure plate to move to the imaging area between the X-ray source and the detector device and move to one side of the detector, or drive the pressure plate to move outside the imaging area between the X-ray source and the detector device. The top of the electrically controlled rotating table is used to drive the collimator to rotate horizontally and make one side of the collimator support plate parallel to or perpendicular to the detector device.

2. The scanning station structure with switching function according to claim 1, characterized in that: The XY motion platform includes at least one X-axis drive mechanism and one Y-axis drive mechanism. The pressure plate connecting plate is arranged on the output end of the Y-axis drive mechanism, and the Y-axis drive mechanism is fixed on the output end of the X-axis drive mechanism.

3. The scanning station structure with switching function according to claim 2, characterized in that: The Y-axis driving mechanism includes a Y-axis motor, a Y-axis ball screw, a Y-axis guide rail and a Y-axis fixed plate. The Y-axis motor and the Y-axis ball screw are respectively provided at both ends of the Y-axis fixed plate. The Y-axis motor is connected to the ball screw. A pressure plate connecting plate is fixed on the ball screw. Y-axis guide rails cooperating with the pressure plate connecting plate are respectively provided on both sides of the Y-axis ball screw.

4. The scanning station structure with switching function according to claim 3, characterized in that: The X-axis drive mechanism includes an X-axis motor, an X-axis ball screw, an X-axis fixed plate, an X-axis guide rail, a reducer and an electromagnetic clutch. The X-axis motor and the X-axis ball screw are fixed at both ends of the X-axis fixed plate respectively. The output end of the X-axis motor is connected to the reducer, the electromagnetic clutch and the X-axis ball screw in sequence. X-axis guide rails that cooperate with the Y-axis fixed plate are provided on both sides of the X-axis ball screw.

5. The scanning station structure with switching function according to claim 4, characterized in that: A pressure plate brake device is further provided on the side of the X-direction ball screw away from the X-direction motor.

6. The scanning station structure with switching function according to claim 1, characterized in that: A first collimation brake device and a second collimation brake device are also provided on two adjacent sides of the electrically controlled rotating table. The first collimation brake device and the second collimation brake device are respectively provided at one end of the detector device away from the electrically controlled rotating table and one end of the X-ray source side close to the electrically controlled rotating table.

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