X-ray emission regulation and control mechanism for three-dimensional reconstruction, double suspension type DR and use method

Abstract

The invention discloses an X-ray emission regulation and control mechanism for three-dimensional reconstruction, a double suspension type DR and a use method, and relates to the technical field of medical imaging equipment, the X-ray emission regulation and control mechanism comprises an X-ray emission mechanism, a control box, a rotating mechanism, a lifting mechanism and a linkage mechanism, the X-ray emission mechanism is used for generating and emitting X-rays; the control box is electrically connected with the X-ray emission mechanism and is used for receiving an external instruction and regulating and controlling emission parameters of the X-rays; the rotating mechanism is used for bearing the X-ray emission mechanism and driving the X-ray emission mechanism to rotate so as to realize multi-angle X-ray emission; the lifting mechanism is used for bearing the control box and driving the control box to lift; the linkage mechanism is in transmission connection with the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emission mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to drive the control box to ascend and descend, the rotating path of the X-ray emission mechanism is avoided, the equipment size is effectively reduced, and the scanning angle range and the imaging quality of three-dimensional reconstruction are improved.

Description

Technical Field

[0001] This invention relates to the field of medical imaging equipment technology, and in particular to an X-ray emission control mechanism for three-dimensional reconstruction, a double-suspension DR, and a method of using it. Background Technology

[0002] In the field of medical imaging diagnosis, suspended digital radiography (DR) systems have become an indispensable piece of equipment in clinical radiological diagnosis due to their flexible spatial layout and convenient operation. With the deepening development of the concept of precision medicine, the clinical diagnostic needs for lesions have shifted from traditional two-dimensional planar imaging to three-dimensional structural imaging. The aim is to obtain the spatial location, morphological characteristics, and adjacent relationships of lesions through three-dimensional reconstruction technology, thereby improving the accuracy and comprehensiveness of diagnosis.

[0003] To meet the demands of 3D imaging, some high-end DR systems have begun exploring the use of coordinated movement between the X-ray tube and the flat panel detector to acquire multi-view projection data, thereby achieving 3D reconstruction. However, existing technologies still face the following technical challenges in realizing 3D imaging: Spatial interference between the X-ray emission end and the control end is a particularly prominent issue. During the rotational scanning of the X-ray tube to achieve multi-angle exposure, the control box, as a key component for regulating X-ray emission parameters, is typically fixed near the tube. When the tube rotates to a certain angle, its movement path conflicts with the control box, causing them to collide. This not only limits the rotation angle range of the tube but also severely affects the stability and safety of the equipment. To solve this problem, existing equipment often increases the spacing between components or limits the rotation angle. However, this increases the overall size of the equipment and restricts the imaging angle, failing to meet the needs of multi-view data acquisition over a wide angle range. Summary of the Invention

[0004] The purpose of this invention is to provide an X-ray emission control mechanism, a dual-suspension DR, and a method of use for three-dimensional reconstruction, in order to solve the problems existing in the prior art. While ensuring the large-angle rotation space of the X-ray tube, it effectively reduces the size of the equipment and improves the scanning angle range and imaging quality of three-dimensional reconstruction.

[0005] To achieve the above objectives, the present invention provides the following solution: This invention provides an X-ray emission control mechanism for three-dimensional reconstruction, comprising: an X-ray emitting mechanism, a control box, a rotating mechanism, a lifting mechanism, and a linkage mechanism. The X-ray emitting mechanism generates and emits X-rays. The control box is electrically connected to the X-ray emitting mechanism and receives external commands to control the emission parameters of the X-rays. The rotating mechanism supports the X-ray emitting mechanism and drives it to rotate to achieve multi-angle X-ray emission. The lifting mechanism supports the control box and drives it to move up and down. The linkage mechanism is connected to both the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emitting mechanism to rotate, the linkage mechanism simultaneously drives the lifting mechanism to move the control box up and down to avoid the rotation path of the X-ray emitting mechanism.

[0006] Preferably, the X-ray emitting mechanism includes an X-ray tube and a beam limiter coaxially connected to the X-ray tube. The X-ray tube is mounted on the rotating mechanism and can rotate around the axis of the X-ray tube under the drive of the rotating mechanism.

[0007] Preferably, the rotating mechanism includes a mounting base, a pipe clamp, a sector gear, a drive motor, a reducer, and a first gear. The mounting base is used for transmission connection with a telescopic suspension arm of the suspended DR. The outer ring of the pipe clamp is fixedly connected to the mounting base. The ball tube is sleeved inside the pipe clamp and fixedly connected to the inner ring of the pipe clamp. The sector gear is fixedly connected to the inner ring of the pipe clamp. The drive motor and the reducer are both fixedly connected to the mounting base. The output shaft of the drive motor is transmissionally connected to the first gear through the reducer. The first gear meshes with the sector gear. One end of the linkage mechanism is transmissionally connected to the sector gear, and the other end is transmissionally connected to the lifting mechanism to convert the rotation of the sector gear into the lifting motion of the lifting mechanism.

[0008] Preferably, the lifting mechanism includes a fixed back plate, a rack, a connecting plate, and a limiting slider. The fixed back plate is used to mount the control box, and a limiting groove is provided on the side of the fixed back plate away from the control box. The rack is fixedly connected to the side of the fixed back plate away from the control box. One end of the connecting plate is fixedly connected to the pipe clamp, and the other end is fixedly connected to the limiting slider. The limiting slider is used to slide within the limiting groove. The linkage mechanism includes a gear mounting bracket, a second gear, a third gear, a drive shaft, and a fourth gear. The gear mounting bracket is fixedly connected to the pipe clamp, and the first gear... The second gear is rotatably connected to the gear mounting bracket. The two ends of the transmission shaft are fixedly connected to the third gear and the fourth gear, respectively, and the transmission shaft is rotatably connected to the gear mounting bracket. The second gear meshes with the sector gear. The third gear meshes with the second gear. The fourth gear meshes with the rack. The second gear transmits the rotational motion of the sector gear sequentially through the third gear, the transmission shaft, and the fourth gear to the rack, thereby driving the fixed back plate and the control box mounted thereon to move up and down along the limiting slide groove.

[0009] Preferably, the limiting groove is a T-shaped groove or a dovetail groove, and the limiting slider has a T-shaped cross section or a dovetail cross section that is adapted to the limiting groove.

[0010] Preferably, the central angle of the sector gear is 90 to 180 degrees.

[0011] Preferably, the rotating mechanism further includes a connecting shaft, one end of which is fixedly connected to the mounting base, and the other end is used for transmission connection with a telescopic suspension arm of the suspended DR.

[0012] The present invention also provides a dual-suspension DR, comprising: an X-ray emission control mechanism for three-dimensional reconstruction as described in any of the preceding claims, a lateral moving guide rail, a horizontal rotating mechanism, a longitudinal moving guide rail, a first telescopic suspension arm, a second telescopic suspension arm, a first attitude adjustment mechanism, a second attitude adjustment mechanism, and a flat panel detector. The lateral moving guide rail is mounted on an indoor ceiling. The fixed end of the horizontal rotating mechanism is slidably connected to the lateral moving guide rail and can maintain its moved position. The rotating end of the horizontal rotating mechanism is slidably connected to the longitudinal moving guide rail and can maintain its moved position. The top ends of the first and second telescopic suspension arms are slidably connected to the longitudinal moving guide rail and can maintain their slidable positions. The telescopic end at the bottom of the first telescopic suspension arm is drivenly connected to the X-ray emission control mechanism for three-dimensional reconstruction through the first attitude adjustment mechanism to adjust the horizontal position and pitch angle of the X-ray emission mechanism. The telescopic end at the bottom of the second telescopic suspension arm is drivenly connected to the flat panel detector through the second attitude adjustment mechanism to adjust the horizontal position and pitch angle of the flat panel detector. The flat panel detector is used to receive X-rays emitted by the X-ray emission mechanism and generate digital images.

[0013] Preferably, the first attitude adjustment mechanism includes a first horizontal rotary bearing and a first vertical rotary bearing. The fixed end of the first horizontal rotary bearing is fixedly connected to the telescopic end of the bottom of the first telescopic suspension arm, the rotating end of the first horizontal rotary bearing is fixedly connected to the fixed end of the first vertical rotary bearing, and the rotating end of the first vertical rotary bearing is fixedly connected to the X-ray emission control mechanism for three-dimensional reconstruction. The second attitude adjustment mechanism includes a second horizontal rotary bearing, a second vertical rotary bearing, and a swing mechanism. The fixed end of the second horizontal rotary bearing is fixedly connected to the telescopic end of the bottom of the second telescopic suspension arm, the rotating end of the second horizontal rotary bearing is fixedly connected to the fixed end of the second vertical rotary bearing, the rotating end of the second vertical rotary bearing is fixedly connected to the fixed end of the swing mechanism, and the swing end of the swing mechanism is fixedly connected to the flat panel detector.

[0014] The present invention also provides a method of using the dual-suspension DR as described in any of the preceding claims, comprising the following steps: Step S1, Initial Positioning: Based on the patient's examination site, adjust the overall position of the longitudinal moving guide rail using the transverse moving guide rail and the horizontal rotating mechanism, so that the X-ray emitting mechanism and the flat panel detector are roughly aligned with the examination area; adjust the vertical height of the X-ray emitting mechanism and the flat panel detector using the first telescopic suspension arm and the second telescopic suspension arm respectively, so that they are at a suitable imaging distance; adjust the horizontal position and pitch angle of the X-ray emitting mechanism and the flat panel detector respectively using the first attitude adjustment mechanism and the second attitude adjustment mechanism, so that the emission direction of the X-ray emitting mechanism is perpendicular to the receiving surface of the flat panel detector.

[0015] Step S2, 3D Reconstruction Scan: The horizontal rotation mechanism drives the longitudinal moving guide rail to rotate around the vertical axis, causing the X-ray emission control mechanism and the flat panel detector to synchronously perform circular motion or specific trajectory motion around the patient's area to be scanned; during this process, the rotation mechanism starts to drive the X-ray emission mechanism to rotate at a large angle, realizing multi-angle X-ray emission; the second attitude adjustment mechanism drives the flat panel detector to adjust the angle synchronously, ensuring the collinearity accuracy between the X-ray emission angle and the center of the flat panel detector; the working process linkage mechanism synchronously transmits the rotation of the rotation mechanism to the lifting mechanism, realizing the lifting and lowering of the control box, avoiding the rotation path of the X-ray emission mechanism in real time, and avoiding spatial interference; the flat panel detector synchronously receives X-ray projection data from different angles and transmits the data to the image processing workstation.

[0016] The present invention achieves the following technical effects compared to the prior art: This invention provides an X-ray emission control mechanism for 3D reconstruction, a dual-suspension DR system, and a method of use. By separating the control box from the X-ray emission mechanism and employing a mechanical transmission scheme that combines a rotation mechanism, a lifting mechanism, and a linkage mechanism, the control box automatically rises and falls with the rotation of the X-ray tube to avoid interference. This design fundamentally solves the rotational interference problem caused by the fixed installation of the control box in traditional structures, allowing the X-ray tube to rotate freely within a large angle range and significantly expanding the scanning field of view for 3D reconstruction. Simultaneously, since there is no need to increase the spacing between components to avoid interference, the overall structure of the equipment is more compact, effectively reducing the space occupation and load requirements of the suspension system.

[0017] Furthermore, the linkage mechanism adopts a purely mechanical transmission method, which converts the rotational motion of the sector gear into the linear lifting motion of the control box. It has high transmission accuracy and timely response, ensuring that the control box is always in a safe position throughout the entire rotation of the X-ray tube. Moreover, no additional sensors or electronic control systems are required to monitor the position, which simplifies the system complexity and improves the operational reliability.

[0018] Furthermore, this control mechanism can be directly integrated into existing dual-suspension DR systems without requiring significant modifications to the basic structure such as the suspension arms and guide rails, and it does not change the doctor's operating habits, thus possessing good compatibility and promotional value. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of the X-ray emission control mechanism for three-dimensional reconstruction provided by the present invention; Figure 2 This is a schematic diagram of the structure of the X-ray emission control mechanism for three-dimensional reconstruction provided by the present invention when the beam limiter is oriented in the horizontal direction; Figure 3 This is a schematic diagram of the structure of the double-suspension DR provided by the present invention; Figure 4 This is a front view of the double-suspension DR provided by the present invention; Figure 5 This is a schematic diagram of the connection between the flat panel detector and the second attitude adjustment mechanism in the dual-suspension DR provided by the present invention. In the diagram: 100, X-ray emission control mechanism for 3D reconstruction; 101, X-ray tube; 102, tube clamp; 103, first gear; 104, drive motor; 105, sector gear; 106, second gear; 107, third gear; 108, rack; 109, fixed back plate; 110, control box; 111, beam limiter; 112, connecting shaft; 113, connecting plate; 114, limiting slider; 115, limiting groove; 200, transverse moving guide rail; 300, horizontal rotation mechanism; 400, longitudinal moving guide rail; 500, first telescopic suspension arm; 600, second telescopic suspension arm; 700, first attitude adjustment mechanism; 800, second attitude adjustment mechanism; 900, flat panel detector. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] The purpose of this invention is to provide an X-ray emission control mechanism, a dual-suspension DR, and a method of use for three-dimensional reconstruction, in order to solve the problems existing in the prior art. While ensuring the large-angle rotation space of the X-ray tube, it effectively reduces the size of the equipment and improves the scanning angle range and imaging quality of three-dimensional reconstruction.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1 This embodiment provides an X-ray emission control mechanism 100 for three-dimensional reconstruction, such as... Figures 1-2 As shown, the system includes: an X-ray emitting mechanism, a control box 110, a rotating mechanism, a lifting mechanism, and a linkage mechanism. The X-ray emitting mechanism generates and emits X-rays. The control box 110 is electrically connected to the X-ray emitting mechanism and receives external commands to adjust the X-ray emission parameters. The rotating mechanism supports the X-ray emitting mechanism and drives it to rotate to achieve multi-angle X-ray emission. The lifting mechanism supports the control box 110 and drives it to move up and down. The linkage mechanism is connected to both the rotating mechanism and the lifting mechanism, so that when the rotating mechanism drives the X-ray emitting mechanism to rotate, the linkage mechanism simultaneously drives the lifting mechanism to move the control box 110 up and down, thus avoiding the rotation path of the X-ray emitting mechanism. This structural design clearly defines the function of each part, enabling the X-ray emission control mechanism to work collaboratively. The X-ray emitting mechanism focuses on generating and emitting X-rays, while the control box 110 precisely controls the emission parameters to ensure imaging quality. The rotating mechanism enables multi-angle emission, meeting the needs of 3D reconstruction for data acquisition from different angles. The lifting mechanism, in conjunction with the linkage mechanism, solves the spatial interference problem between the control box 110 and the X-ray emitting mechanism during rotation, optimizes the equipment's spatial layout, and improves the stability and reliability of equipment operation.

[0025] In a preferred embodiment, the X-ray emission mechanism includes an X-ray tube 101 and a beam limiter 111 coaxially connected to the X-ray tube 101. The X-ray tube 101 is mounted on a rotating mechanism and can rotate around its axis under the drive of the rotating mechanism. The coaxial connection between the X-ray tube 101 and the beam limiter 111 ensures the directionality and accuracy of X-ray emission. The beam limiter 111 can adjust the size of the irradiation field, shield excess scattered rays, and improve imaging clarity. At the same time, the ability of the X-ray tube 101 to rotate around its axis helps to achieve multi-angle, precise X-ray emission, providing a guarantee for obtaining high-quality three-dimensional reconstruction data.

[0026] In a preferred embodiment, the rotating mechanism includes a mounting base, a pipe clamp 102, a sector gear 105, a drive motor 104, a reducer, and a first gear 103. The mounting base is used for transmission connection with a telescopic suspension arm of the suspended DR. The pipe clamp 102 includes an outer ring and an inner ring rotatably connected to the outer ring. The outer ring of the pipe clamp 102 is fixedly connected to the mounting base. The ball tube 101 is sleeved inside the pipe clamp 102 and fixedly connected to the inner ring of the pipe clamp 102. The sector gear 105 is fixedly connected to the inner ring of the pipe clamp 102. The drive motor 104 and the reducer are both fixedly connected to the mounting base. The output shaft of the drive motor 104 is transmissionally connected to the first gear 103 through the reducer. The first gear 103 is meshed with the sector gear 105. One end of the linkage mechanism is transmissionally connected to the sector gear 105, and the other end is transmissionally connected to the lifting mechanism to convert the rotation of the sector gear 105 into the lifting motion of the lifting mechanism. The design of this rotating mechanism provides stable power transmission and precise rotation control. The mounting base connects to the telescopic suspension arm, providing support and a base for movement for the X-ray tube 101. The pipe clamp 102 secures the X-ray tube 101 and allows it to rotate flexibly. The meshing transmission between the sector gear 105 and the first gear 103 ensures that the drive motor 104 can precisely drive the X-ray tube 101 to rotate. Simultaneously, the sector gear 105 connects to the linkage mechanism, providing power for the lifting and lowering linkage of the control box 110, achieving coordinated movement between the rotation of the X-ray tube 101 and the lifting and lowering of the control box 110.

[0027] In a preferred embodiment, the lifting mechanism includes a fixed back plate 109, a rack 108, a connecting plate 113, and a limiting slider 114. The fixed back plate 109 is used to mount the control box 110, and a limiting groove 115 is provided on the side of the fixed back plate 109 away from the control box 110. The rack 108 is fixedly connected to the side of the fixed back plate 109 away from the control box 110. One end of the connecting plate 113 is fixedly connected to the pipe clamp 102, and the other end is fixedly connected to the limiting slider 114. The limiting slider 114 is used to slide within the limiting groove 115. The linkage mechanism includes a gear mounting bracket, a second gear 106, a third gear 107, a drive shaft, and a fourth gear. The gear mounting bracket is fixedly connected to the pipe clamp 102. The second gear 106 is rotatably connected to the gear mounting bracket. Both ends of the drive shaft are fixedly connected to the third gear 107 and the fourth gear, respectively, and the drive shaft is also rotatably connected to the gear mounting bracket. The second gear 106 meshes with the sector gear 105. The third gear 107 meshes with the second gear 106, and the fourth gear meshes with the rack 108. The second gear 106 transmits the rotational motion of the sector gear 105 sequentially through the third gear 107, the drive shaft, and the fourth gear to the rack 108, thereby driving the fixed back plate 109 and the control box 110 mounted on it to move up and down along the limiting slide groove 115. The detailed design of the lifting mechanism and the linkage mechanism ensures the smoothness and accuracy of the lifting of the control box 110. The fixed back plate 109 provides the mounting base for the control box 110. The limiting slide groove 115 and the limiting slider 114 cooperate to restrict the direction of movement of the control box 110, ensuring its lifting stability. The linkage mechanism precisely transmits the power of the rotation of the ball tube 101 to the lifting mechanism of the control box 110 through the transmission of multiple gears and drive shafts, so as to realize the synchronous linkage between the two and effectively avoid interference between the control box 110 and the X-ray emission mechanism when they rotate.

[0028] In a preferred embodiment, the limiting groove 115 is a T-shaped groove or a dovetail groove, and the limiting slider 114 has a T-shaped cross-section or a dovetail cross-section adapted to the limiting groove 115. The T-shaped groove or dovetail groove, in conjunction with the limiting slider 114 of the corresponding cross-section, provides better guiding and anti-detachment performance. This design enhances the stability of the control box 110 during the lifting process, prevents it from shifting or detaching during movement, and further improves the reliability of equipment operation.

[0029] In a preferred embodiment, the central angle of the sector gear 105 is between 90 and 180 degrees. The specific range of the central angle of the sector gear 105 can satisfy the requirement that the X-ray tube 101 can emit X-rays at multiple angles within a certain angle range to obtain sufficient three-dimensional reconstruction data. At the same time, it can reasonably control the structural size and movement range of the rotating mechanism while ensuring functionality, and avoid affecting the overall performance and spatial layout of the equipment due to the sector gear 105 being too large or too small.

[0030] In a preferred embodiment, the rotating mechanism further includes a connecting shaft 112. One end of the connecting shaft 112 is fixedly connected to the mounting base, and the other end is used for transmission connection with a telescopic suspension arm of the suspended DR. The connecting shaft 112 enhances the connection stability between the rotating mechanism and the telescopic suspension arm, ensuring that the rotating mechanism can reliably obtain power from the telescopic suspension arm and transmit motion during the rotation of the X-ray tube 101 and the overall movement of the equipment, thus ensuring the normal operation of the entire X-ray emission control mechanism.

[0031] Example 2 This embodiment also provides a dual-suspension DR, such as Figures 3-5 As shown, it includes: an X-ray emission control mechanism 100 for three-dimensional reconstruction as described in any of the preceding items, a transverse moving guide rail 200, a horizontal rotation mechanism 300, a longitudinal moving guide rail 400, a first telescopic suspension arm 500, a second telescopic suspension arm 600, a first attitude adjustment mechanism 700, a second attitude adjustment mechanism 800, and a flat panel detector 900. The transverse moving guide rail 200 is mounted on the indoor ceiling. The fixed end of the horizontal rotation mechanism 300 is slidably connected to the transverse moving guide rail 200 and can maintain its moved position. The rotating end of the horizontal rotation mechanism 300 is slidably connected to the longitudinal moving guide rail 400 and can maintain its moved position. The first telescopic suspension arm 500... The top ends of the first telescopic suspension arm 500 and the second telescopic suspension arm 600 are slidably connected to the longitudinal moving guide rail 400 and can maintain their slidable position. The telescopic end of the bottom of the first telescopic suspension arm 500 is connected to the X-ray emission control mechanism 100 for 3D reconstruction via the first attitude adjustment mechanism 700 to adjust the horizontal position and pitch angle of the X-ray emission mechanism. The telescopic end of the bottom of the second telescopic suspension arm 600 is connected to the flat panel detector 900 via the second attitude adjustment mechanism 800 to adjust the horizontal position and pitch angle of the flat panel detector 900. The flat panel detector 900 is used to receive the X-rays emitted by the X-ray emission mechanism and generate digital images. The overall structural design of this dual-suspension DR system, through the synergistic action of multiple mechanisms, enables flexible spatial adjustment of the X-ray emission control mechanism and the flat panel detector 900. The transverse and longitudinal moving guide rails 400 and the horizontal rotation mechanism 300 allow the entire system to be flexibly positioned within the indoor space. The first retractable suspension arm and the second telescopic suspension arm 600, together with the first posture adjustment mechanism 700 and the second posture adjustment mechanism 800, can precisely adjust the position and angle of the X-ray emitting mechanism and the flat panel detector 900, thereby meeting the imaging needs of different patients and different parts, improving the versatility of the equipment and the accuracy of imaging, and at the same time, can accurately ensure the collinearity between the focal point of the X-ray tube 101 and the center of the flat panel detector 900, providing high-quality image data for three-dimensional reconstruction.

[0032] In a preferred embodiment, the first attitude adjustment mechanism 700 includes a first horizontal rotary bearing and a first vertical rotary bearing. The fixed end of the first horizontal rotary bearing is fixedly connected to the telescopic end of the bottom of the first telescopic suspension arm 500, and the rotating end of the first horizontal rotary bearing is fixedly connected to the fixed end of the first vertical rotary bearing. The rotating end of the first vertical rotary bearing is fixedly connected to the X-ray emission control mechanism 100 for three-dimensional reconstruction. The second attitude adjustment mechanism 800 includes a second horizontal rotary bearing, a second vertical rotary bearing, and a swing mechanism. The fixed end of the second horizontal rotary bearing is fixedly connected to the telescopic end of the bottom of the second telescopic suspension arm 600, and the rotating end of the second horizontal rotary bearing is fixedly connected to the fixed end of the second vertical rotary bearing. The rotating end of the second vertical rotary bearing is fixedly connected to the fixed end of the swing mechanism, and the swing end of the swing mechanism is fixedly connected to the flat panel detector 900. The first attitude adjustment mechanism 700, through the two rotary bearings, can realize the angle adjustment of the X-ray emission mechanism in the horizontal and vertical directions, and precisely control the emission direction of X-rays. The second attitude adjustment mechanism 800 is similar, and the added swing mechanism further enriches the attitude adjustment methods of the flat panel detector 900, enabling it to receive X-rays more flexibly. These attitude adjustment mechanisms improve the device's adaptability to different imaging scenarios, ensuring that X-rays are accurately projected onto the flat panel detector 900, improving imaging quality, and providing a more reliable data foundation for 3D reconstruction.

[0033] Example 3 This embodiment provides a method for using a dual-suspension DR system, including the following steps: I. Patient Positioning and Equipment Adjustment: Position the patient in the examination location and adjust the patient's position according to the area to be scanned, ensuring that the target area is within the effective scanning space of the dual-suspension DR. Adjust the planar positions of the first telescopic suspension arm 500 and the second telescopic suspension arm 600 using the transverse moving guide rail 200, the horizontal rotation mechanism 300, and the longitudinal moving guide rail 400, so that the X-ray emission control mechanism and the flat panel detector 900 are located on either side of the area to be scanned on the patient. Activate the first posture adjustment mechanism 700 and the second posture adjustment mechanism 800 to adjust the pitch angle of the X-ray emission mechanism and the flat panel detector 900, ensuring that the focal point of the X-ray tube 101 and the center of the flat panel detector 900 are on the same horizontal line, and that the X-ray emission direction is perpendicular to the receiving surface of the flat panel detector 900.

[0034] II. Three-Dimensional Imaging Process: When three-dimensional imaging is required, medical staff select the three-dimensional imaging mode through the operation panel, input the imaging area and parameters, and the horizontal rotation mechanism 300 drives the longitudinal moving guide rail 400 to rotate around the vertical axis, so that the X-ray emission control mechanism and the flat panel detector 900 synchronously move in a circular motion or a specific trajectory around the patient's area to be scanned; during this process, the drive motor 104 starts, and through the meshing transmission of the first gear 103 and the sector gear 105, it drives the X-ray tube 101 to rotate around its axis at a large angle to achieve multi-angle X-ray emission; at the same time, the second attitude adjustment mechanism 800 drives the flat panel detector 900 to synchronously adjust the angle to ensure that the X-ray tube 101 rotates at a large angle around its axis. The collinearity accuracy between the focal point of X-ray tube 101 and the center of flat panel detector 900 is ensured, thereby generating a three-dimensional spatial motion trajectory connecting the focal point of X-ray tube 101 and the center of flat panel detector 900. During operation, the rotation of sector gear 105 is synchronously transmitted to the lifting mechanism through the linkage mechanism. After the second gear 106 meshes with sector gear 105, the rotational motion is transmitted to rack 108 through third gear 107, drive shaft and fourth gear, driving fixed back plate 109 and control box 110 to smoothly rise and fall along limit slide groove 115, avoiding the rotation path of X-ray tube 101 in real time and avoiding spatial interference. Flat panel detector 900 synchronously receives X-ray projection data from different angles and transmits the data to image processing workstation.

[0035] III. Image Reconstruction and Post-processing: After receiving the multi-angle projection data transmitted by the flat panel detector 900, the image processing workstation first performs data preprocessing, including bad pixel correction, gain calibration, and noise filtering, to eliminate signal deviations caused by hardware characteristics. Subsequently, a filtered back projection algorithm or an iterative reconstruction algorithm is used to perform three-dimensional reconstruction calculations on the preprocessed data to generate three-dimensional volume data of the area to be scanned. After reconstruction, medical staff can perform post-processing operations such as multi-plane reconstruction, maximum density projection, and volume reproduction through the workstation interface to obtain tomographic images and stereoscopic visualization effects from any angle, assisting in clinical diagnosis.

[0036] IV. Equipment Reset and Completion: After the 3D imaging is completed, the drive motor 104 reverses to reset the X-ray tube 101 to the initial angle, and the linkage mechanism synchronously drives the control box 110 to descend to the initial height; the X-ray emitting mechanism is turned off, and the first posture adjustment mechanism 700 and the second posture adjustment mechanism 800 adjust the X-ray emitting mechanism and the flat panel detector 900 to the standby posture; the transverse moving guide rail 200, the horizontal rotation mechanism 300 and the longitudinal moving guide rail 400 move the first telescopic suspension arm 500 and the second telescopic suspension arm 600 to the storage position or the position to prepare for the next patient's examination, thus completing the 3D imaging operation process of this dual-suspension DR.

[0037] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An X-ray emission control mechanism for three-dimensional reconstruction, characterized in that: include: An X-ray emitting mechanism for generating and emitting X-rays; A control box, which is electrically connected to the X-ray emitting mechanism, is used to receive external commands and adjust the emission parameters of X-rays; A rotating mechanism is provided to support the X-ray emitting mechanism and drive the X-ray emitting mechanism to rotate in order to achieve multi-angle X-ray emission; A lifting mechanism is provided to support the control box and drive the control box to move up and down. as well as A linkage mechanism is provided, which is connected to both the rotating mechanism and the lifting mechanism. When the rotating mechanism drives the X-ray emitting mechanism to rotate, the linkage mechanism synchronously drives the lifting mechanism to raise and lower the control box, thereby avoiding the rotation path of the X-ray emitting mechanism.

2. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 1, characterized in that: The X-ray emitting mechanism includes an X-ray tube and a beam limiter coaxially connected to the X-ray tube. The X-ray tube is mounted on the rotating mechanism and can rotate around the axis of the X-ray tube under the drive of the rotating mechanism.

3. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 2, characterized in that: The rotating mechanism includes a mounting base, a pipe clamp, a sector gear, a drive motor, a reducer, and a first gear. The mounting base is used for transmission connection with a telescopic suspension arm of the suspended DR. The outer ring of the pipe clamp is fixedly connected to the mounting base. The ball tube is sleeved inside the pipe clamp and fixedly connected to the inner ring of the pipe clamp. The sector gear is fixedly connected to the inner ring of the pipe clamp. The drive motor and the reducer are both fixedly connected to the mounting base. The output shaft of the drive motor is transmissionally connected to the first gear through the reducer. The first gear meshes with the sector gear. One end of the linkage mechanism is transmissionally connected to the sector gear, and the other end is transmissionally connected to the lifting mechanism to convert the rotation of the sector gear into the lifting motion of the lifting mechanism.

4. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 2, characterized in that: The lifting mechanism includes a fixed back plate, a rack, a connecting plate, and a limiting slider. The fixed back plate is used to install the control box, and a limiting groove is provided on the side of the fixed back plate away from the control box. The rack is fixedly connected to the side of the fixed back plate away from the control box. One end of the connecting plate is fixedly connected to the pipe clamp, and the other end is fixedly connected to the limiting slider. The limiting slider is used to slide within the limiting groove. The linkage mechanism includes a gear mounting bracket, a second gear, a third gear, a drive shaft, and a fourth gear. The gear mounting bracket is fixedly connected to the pipe clamp. The second gear is rotatably connected to the gear mounting bracket. Both ends of the drive shaft are fixedly connected to the third gear and the fourth gear, respectively, and the drive shaft is rotatably connected to the gear mounting bracket. The second gear meshes with the sector gear. The third gear meshes with the second gear. The fourth gear meshes with the rack. The second gear transmits the rotational motion of the sector gear sequentially through the third gear, the drive shaft, and the fourth gear to the rack, thereby driving the fixed back plate and the control box mounted thereon to move up and down along the limiting slide groove.

5. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 4, characterized in that: The limiting groove is a T-shaped groove or a dovetail groove, and the limiting slider has a T-shaped cross section or a dovetail cross section that is adapted to the limiting groove.

6. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 4, characterized in that: The central angle of the sector gear is between 90 and 200 degrees.

7. The X-ray emission control mechanism for three-dimensional reconstruction according to claim 2, characterized in that: The rotating mechanism also includes a connecting shaft, one end of which is fixedly connected to the mounting base, and the other end is used for transmission connection with a telescopic suspension arm of the suspended DR.

8. A double-suspension DR, characterized in that, include: The X-ray emission control mechanism, lateral moving guide rail, horizontal rotating mechanism, longitudinal moving guide rail, first telescopic suspension arm, second telescopic suspension arm, first attitude adjustment mechanism, second attitude adjustment mechanism, and flat panel detector for three-dimensional reconstruction as described in any one of claims 1 to 7, wherein the lateral moving guide rail is installed on the indoor ceiling; the fixed end of the horizontal rotating mechanism is slidably connected to the lateral moving guide rail and can maintain the moved position, the rotating end of the horizontal rotating mechanism is slidably connected to the longitudinal moving guide rail and can maintain the moved position, the top ends of the first telescopic suspension arm and the second telescopic suspension arm are slidably connected to the longitudinal moving guide rail and can maintain the slidably moved position, the telescopic end at the bottom of the first telescopic suspension arm is drivenly connected to the X-ray emission control mechanism for three-dimensional reconstruction through the first attitude adjustment mechanism to adjust the horizontal position and pitch angle of the X-ray emission mechanism, the telescopic end at the bottom of the second telescopic suspension arm is drivenly connected to the flat panel detector through the second attitude adjustment mechanism to adjust the horizontal position and pitch angle of the flat panel detector, and the flat panel detector is used to receive the X-rays emitted by the X-ray emission mechanism and generate digital images.

9. The dual-suspension DR according to claim 8, characterized in that: The first attitude adjustment mechanism includes a first horizontal rotary bearing and a first vertical rotary bearing. The fixed end of the first horizontal rotary bearing is fixedly connected to the telescopic end at the bottom of the first telescopic suspension arm. The rotating end of the first horizontal rotary bearing is fixedly connected to the fixed end of the first vertical rotary bearing. The rotating end of the first vertical rotary bearing is fixedly connected to the X-ray emission control mechanism for three-dimensional reconstruction. The second attitude adjustment mechanism includes a second horizontal rotary bearing, a second vertical rotary bearing, and a swing mechanism. The fixed end of the second horizontal rotary bearing is fixedly connected to the telescopic end at the bottom of the second telescopic suspension arm. The rotating end of the second horizontal rotary bearing is fixedly connected to the fixed end of the second vertical rotary bearing. The rotating end of the second vertical rotary bearing is fixedly connected to the fixed end of the swing mechanism. The swing end of the swing mechanism is fixedly connected to the flat panel detector.

10. A method of using a dual-suspension DR according to any one of claims 8 to 9, characterized in that, Includes the following steps: Step S1, Initial Positioning: Based on the patient's examination site, adjust the overall position of the longitudinal moving guide rail using the transverse moving guide rail and the horizontal rotating mechanism, so that the X-ray emitting mechanism and the flat panel detector are roughly aligned with the examination area; adjust the vertical height of the X-ray emitting mechanism and the flat panel detector using the first telescopic suspension arm and the second telescopic suspension arm respectively, so that they are at a suitable imaging distance; adjust the horizontal position and pitch angle of the X-ray emitting mechanism and the flat panel detector respectively using the first attitude adjustment mechanism and the second attitude adjustment mechanism, so that the emission direction of the X-ray emitting mechanism is perpendicular to the receiving surface of the flat panel detector; Step S2, 3D Reconstruction Scan: The horizontal rotation mechanism drives the longitudinal moving guide rail to rotate around the vertical axis, causing the X-ray emission control mechanism and the flat panel detector to synchronously perform circular motion or specific trajectory motion around the patient's area to be scanned; during this process, the rotation mechanism starts to drive the X-ray emission mechanism to rotate at a large angle, realizing multi-angle X-ray emission; the second attitude adjustment mechanism drives the flat panel detector to adjust the angle synchronously, ensuring the collinearity accuracy between the X-ray emission angle and the center of the flat panel detector; the working process linkage mechanism synchronously transmits the rotation of the rotation mechanism to the lifting mechanism, realizing the lifting and lowering of the control box, avoiding the rotation path of the X-ray emission mechanism in real time, and avoiding spatial interference; the flat panel detector synchronously receives X-ray projection data from different angles and transmits the data to the image processing workstation.

Images