A CT scanning device for multi-planar imaging

Abstract

The present application discloses a CT scanning device for multi-plane imaging, which includes a scanning ring, a transverse moving frame, a cantilever member, and a telescopic driving mechanism for driving the cantilever member to perform telescopic actions. The cantilever member includes two rotating swing arms that are symmetrically arranged about the central axis of the scanning ring and are respectively rotationally connected to the transverse moving frame. A telescopic swing arm is telescopically provided on the rotating swing arm. The scanning ring is rotatably arranged between the two telescopic swing arms. In the embodiment of the present application, by adopting the above CT scanning device for multi-plane imaging and using a double-arm suspension bracket structure, through the linear telescoping of the telescopic swing arm relative to the rotating swing arm, combined with the adjustment of the yaw angle of the cantilever member and the rotation angle of the scanning ring, it is possible to achieve a rapid switch under the detection requirements of the standing position and the lying position, which is beneficial to the miniaturization of the scanning device, as well as the improvement of multi-position compatibility, imaging quality, and operation efficiency, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of CT devices, and in particular to a CT scanning device for multi-plane imaging. Background Art

[0002] Computed tomography (CT) is a medical imaging technology used to generate cross-sectional images of the human body. It can take multiple X-ray images from different angles and then synthesize tomographic images through computer processing to form detailed two-dimensional or three-dimensional views.

[0003] Most mainstream CT systems use a closed-loop gantry, and patients need to lie flat on a horizontal examination bed for scanning. Although such a structure can ensure imaging stability, it cannot support sitting or semi-recumbent examinations.

[0004] There are also some scanning rings that use a full-circle rotation design, and their principle is to set up multiple adjustment mechanisms to drive the scanning ring. For example, Patent CN207928328U discloses a cone-beam CT multi-directional scanner, including a main machine frame, a cone-beam CT scanning device, a scanning frame, and a rotary drive device. The cone-beam CT scanning device is installed on the frame body of the scanning frame, and the scanning frame can be flipped inside the main machine frame through the rotary drive device. When the scanning frame is flipped to a horizontal state, standing position scanning of the human body can be performed, and when the scanning frame is flipped to a vertical state, supine position scanning of the human body can be performed. In the above solution, although 360° continuous scanning can be achieved, the gantry is bulky, requires a large installation space, and cannot adapt to longitudinal tilt scanning in the case of a patient's tilted sitting position, having certain limitations. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a CT scanning device for multi-plane imaging with strong body position compatibility and a compact structure.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions.

[0007] The present application provides a CT scanning device for multi-plane imaging, including a scanning ring, a transverse movement frame, a cantilever member, and a telescopic drive mechanism for driving the cantilever member to perform telescopic actions:

[0008] The cantilever member includes two rotating swing arms symmetrically arranged about the central axis of the scanning ring and respectively rotatably connected to the transverse movement frame. The rotating swing arms are telescopically provided with telescopic swing arms, and the scanning ring is rotatably arranged between the two telescopic swing arms;

[0009] Wherein, it further includes a yaw drive assembly for adjusting the rotation angle of the rotating swing arm relative to the transverse movement frame, a rotation unit for driving the scanning ring to rotate relative to the telescopic swing arm, and a telescopic drive mechanism for driving the telescopic swing arm to perform telescopic actions relative to the rotating swing arm;

[0010] The rotating units are provided in two groups and are respectively fixedly arranged on two telescopic swing arms.

[0011] It is further defined that in the above-mentioned multi-plane imaging CT scanning device, a driving bracket is fixedly provided between the two rotating swing arms, and the telescopic driving mechanism comprises:

[0012] A lifting shaft, rotatably arranged on the rotating swing arm;

[0013] A telescopic driving motor, fixedly arranged on the driving bracket;

[0014] Wherein, the telescopic swing arm is threadedly connected to the lifting shaft, and the telescopic driving motor is coupled to the lifting shaft and can drive the lifting shaft to rotate on the rotating swing arm.

[0015] It is further defined that in the above-mentioned multi-plane imaging CT scanning device, a driving shaft is rotatably provided on the driving bracket, and the central axis of the driving shaft is located on a horizontal plane and is perpendicular to the central axis of the lifting shaft;

[0016] Among them, the power output shaft of the telescopic drive motor is parallel to the central axis of the lifting shaft, and the drive shaft is coupled to the power output shaft of the telescopic drive motor through a drive adapter and is coupled to the two lifting shafts through two transition adapters.

[0017] It is further defined that the above-mentioned multi-plane imaging CT scanning device also includes a failure self-locking device for limiting the relative movement between the telescopic swing arm and the rotating swing arm.

[0018] It is further defined that in the above-mentioned multi-plane imaging CT scanning device, the failure self-locking device comprises a fixing plate and a supporting seat fixedly arranged on the driving bracket;

[0019] A locking shaft is rotatably provided on the support seat, a locking wheel is fixedly provided on the locking shaft, a driving wheel is fixedly provided on the driving shaft, and a linkage belt is wound between the locking wheel and the driving wheel;

[0020] Wherein, a limiter is provided between the locking shaft and the fixing plate;

[0021] In a power-off state, the limiter can limit the rotation of the locking shaft relative to the fixing plate.

[0022] It is further defined that the above-mentioned multi-plane imaging CT scanning device also includes a manual failure backup component for controlling the movement of the telescopic swing arm relative to the rotating swing arm.

[0023] It is further defined that, in the above-mentioned multi-plane imaging CT scanning device, the manual failure backup component includes a connecting shaft arranged parallel to the driving shaft, and an adjustment shaft rotatably arranged on the rotating swing arm and parallel to the lifting shaft;

[0024] A connecting wheel is fixedly provided on the connecting shaft, a linkage belt is wound between the connecting wheel, the driving wheel and the locking wheel, and the end of the adjusting shaft away from the telescopic swing arm is coupled to the connecting shaft through an adjusting adapter.

[0025] It is further defined that, in the above-mentioned multi-plane imaging CT scanning device, the manual failure backup component further includes a hand crank;

[0026] The hand-cranked component is detachably connected to one end of the adjusting shaft away from the adjusting adapter, and is used to drive the adjusting shaft to rotate.

[0027] It is further defined that, in the above-mentioned multi-plane imaging CT scanning device, at least one linkage shaft is rotatably provided on the driving bracket between the two rotating swing arms, and a linkage wheel is fixedly provided on the linkage shaft;

[0028] Wherein, the linkage belt is wound between the driving wheel, the locking wheel, the connecting wheel and the linkage wheel.

[0029] It is further defined that, in the above-mentioned multi-plane imaging CT scanning device, a gas spring device is fixedly connected between the rotating swing arm and the telescopic swing arm at corresponding positions.

[0030] The present invention has at least the following beneficial effects:

[0031] 1. The double-arm suspension bracket structure is adopted. Through the linear extension and retraction of the telescopic swing arm relative to the rotating swing arm, combined with the swing angle of the cantilever and the rotation angle adjustment of the scanning ring, it can realize the rapid switching between standing and lying posture detection requirements, which is conducive to the miniaturization of the scanning device and the improvement of multi-body compatibility, imaging quality and operating efficiency;

[0032] 2. The failure self-locking device can limit the extension of the telescopic swing arm relative to the rotating swing arm under this working condition, thereby ensuring the position locking of the scanning ring, avoiding harm to the patient and improving the safety of the scanning device;

[0033] 3. The gas spring device can balance the load between the rotating swing arm and the telescopic swing arm at the corresponding position, ensuring that the scanning ring will not fall freely when the cantilever is broken, avoiding harm to the patient and improving the safety of the scanning device. At the same time, it can buffer the relative position adjustment between the rotating swing arm and the telescopic swing arm to improve the working stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1Schematic diagram of the structure of the CT scanning system according to the embodiment of the present application;

[0035] Figure 2 Schematic diagram of the structure of the CT scanning system according to the embodiment of the present application;

[0036] Figure 3 Schematic diagram of the structure of the CT scanning system according to the embodiment of the present application;

[0037] Figure 4 Schematic diagram of the structure of the CT scanning device according to the embodiment of the present application;

[0038] Figure 5 Schematic diagram of the structures of the "working frame" and "transverse movement assembly" according to the embodiment of the present application;

[0039] Figure 6 Schematic diagram of the structure of the "transverse movement assembly" part according to the embodiment of the present application;

[0040] Figure 7 Enlarged schematic diagram of the partial structure of the "transverse movement assembly" according to the embodiment of the present application;

[0041] Figure 8 Schematic diagram of the structure of the "cantilever 630" part according to the embodiment of the present application;

[0042] Figure 9 Enlarged schematic diagram of the partial structure of the "cantilever 630" part according to the embodiment of the present application;

[0043] Figure 10 Exploded schematic diagram of the structure of the "cantilever 630" part according to the embodiment of the present application;

[0044] Figure 11 Exploded schematic diagram of the structure of the "rotary drive mechanism" part according to the embodiment of the present application;

[0045] Figure 12 Enlarged schematic diagram of the partial structure of the "telescopic drive mechanism 620" part according to the embodiment of the present application;

[0046] Figure 13 Schematic diagram of the structure when the "cantilever 630" is in the extended state and the "scanning ring 500" is in the horizontal detection state according to the embodiment of the present application;

[0047] Figure 14 Schematic diagram of the structure when the "cantilever 630" is in the extended state and the "scanning ring 500" is in the vertical detection state according to the embodiment of the present application;

[0048] Figure 15 Schematic diagram of the structure when the "cantilever 630" is in the extended state and the "scanning ring 500" is in the vertical detection state according to the embodiment of the present application;

[0049] Figure 16 It is a schematic structural diagram of the "yaw drive assembly 900" in the embodiment of the present application;

[0050] Figure 17 It is a schematic structural diagram of the "yaw drive assembly 900" in the embodiment of the present application;

[0051] Figure 18 It is a schematic structural diagram of the CT scanning system in the initial state in the embodiment of the present application;

[0052] Figure 19 It is a schematic structural diagram of the CT scanning system in the initial state in the embodiment of the present application;

[0053] Figure 20 It is a schematic structural diagram of the CT scanning system in the horizontal detection state in the embodiment of the present application;

[0054] Figure 21 It is a schematic diagram of the position of the "detection seat assembly 300" in the CT scanning system in the longitudinal detection state in the embodiment of the present application;

[0055] Figure 22 It is a schematic structural diagram of the CT scanning system in the longitudinal detection state in the embodiment of the present application;

[0056] Figure 23 It is a detection schematic diagram of the "scanning ring 500" in the embodiment of the present application.

[0057] Reference numerals

[0058] Base plate - 100, mounting frame - 110, detection bed assembly - 200, bed body drive assembly - 210, bed board main body - 220, detection seat assembly - 300, seat drive assembly - 310, seat main body - 320, positioning device - 400, scanning ring - 500, warning unit - 510, transverse movement frame - 610, transverse movement main shaft - 611, transverse movement slider - 612, transverse movement motor - 613, transverse movement drive wheel - 614, transverse movement driven wheel - 615, transverse movement idler wheel - 616, transverse movement drive belt - 617, telescopic drive mechanism - 620, drive support - 621, drive shaft - 622, lifting shaft - 623, drive adapter - 624, transition adapter - 625, drive wheel - 626, cantilever member - 630, rotating swing arm - 631, telescopic swing arm - 632, yaw angle sensing device - 640, gas spring device - 650, rotary drive motor - 661, rotary drive wheel - 662, rotary drive belt - 663, driven lead screw - 664, driven drive wheel - 665, drive seat body - 666, half gear member - 667, adapter fixing plate - 668, limiting member - 669, connecting shaft - 710, connecting wheel - 720, adjusting shaft - 730, adjusting adapter - 731, hand crank member - 732, locking rotating shaft - 810, limiter - 820, fixing plate - 830, locking wheel - 840, support seat - 850, linkage shaft - 860, linkage wheel - 870, linkage belt - 880, yaw drive assembly - 900, yaw motor - 910, yaw driving wheel - 911, yaw drive shaft - 920, sliding table - 930, sliding guide rail - 931, first driven slider - 932, transverse movement screw block - 940, fixing block - 950, second driven slider - 960, yaw guide rail - 970, yaw drive pulley - 980, first tensioning pulley - 981, second tensioning pulley - 982, third tensioning pulley - 983, yaw drive belt - 990. Detailed implementation mode

[0059] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0060] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of this application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0061] The following will combine the accompanying drawings and, through specific embodiments and their application scenarios, elaborate in detail on the CT scanning device for multi-plane imaging provided by the embodiments of this application.

[0062] Embodiment 1

[0063] As Figures 1 to 23 shown, the embodiments of this application provide a CT scanning system, including a working frame, a detection bed assembly 200, a detection seat assembly 300, and a scanning ring 500 provided on the working frame.

[0064] An adjustment unit is provided between the working frame and the scanning ring 500. The adjustment unit can drive the scanning ring 500 to move horizontally between the detection stations of the detection bed assembly 200 and the detection seat assembly 300, and can also drive the scanning ring 500 to move up and down in the vertical direction and rotate along a predetermined axis.

[0065] Among them, the predetermined axis is specifically a horizontal line passing through the central axis of the scanning ring 500. Driven by the adjustment unit, the scanning ring 500 can cooperate with the detection bed assembly 200 to perform a lying posture detection, or cooperate with the detection seat assembly 300 to perform a standing posture detection.

[0066] It can be understood that, as Figure 23 shown, when performing a lying posture detection, since the patient is in a horizontal state on the detection bed assembly 200, the adjustment assembly drives the scanning ring 500 to move to the corresponding position of the detection bed assembly 200 and move up and down to align with the patient in the horizontal direction. At the same time, the scanning ring 500 is rotated along the predetermined axis until the central axis is horizontal. Finally, the adjustment assembly drives the scanning ring 500 to pass through the patient on the detection bed assembly 200, thereby completing the detection action; when performing a standing posture detection, the patient stands at a right angle and sits on the detection seat assembly 300. The adjustment assembly drives the scanning ring 500 to move to the corresponding position of the detection bed assembly 200 and align longitudinally with the patient. Then, the scanning ring 500 is rotated along the predetermined axis until the central axis is perpendicular to the ground. Finally, the adjustment assembly drives the scanning ring 500 to move up and down through the patient on the detection seat assembly 300, thereby completing the detection action.

[0067] It should be noted that the standing position includes the standing state and the state where the upper body in the sitting position is straightened, which is specifically determined based on the patient's detection scheme and will not be elaborated here.

[0068] In the embodiment of the present application, by using the above CT scanning system, the adjustment unit can drive the scanning ring 500 to move between the detection stations of the detection bed assembly 200 and the detection seat assembly 300, and can quickly adjust the scanning plane angle according to the patient's detection posture, ensuring that the central axis of the scanning ring 500 is accurately aligned with the anatomical axis of the patient's body position, with strong body position adaptability and effectively improving the space utilization rate.

[0069] In a preferred embodiment, the angular range of the rotation of the scanning ring 500 along the predetermined axis is specifically greater than 90°.

[0070] Among them, the scanning ring 500 can rotate along the predetermined axis until the central axis is in a horizontal or vertical state.

[0071] In a preferred embodiment, the predetermined axis is specifically a horizontal line passing through the geometric center point of the scanning ring 500.

[0072] It should be noted that the scanning ring 500 is a ring-shaped structure, and the geometric center point is defined to satisfy the symmetry of the scanning ring 500 both radially and axially. By setting the orientation of the predetermined axis, the rotation stroke range of the scanning ring 500 can be reduced, and further reduce the space occupied when the scanning ring 500 is adjusted.

[0073] In a preferred embodiment, as Figures 1 to 3 , Figure 5 , Figures 18 to 22 shown, the working frame includes a bottom plate 100 and a mounting frame 110 fixedly arranged on the top of the bottom plate 100.

[0074] Among them, the adjustment unit is arranged on the mounting frame 110, and the detection bed assembly 200 and / or the detection seat assembly 300 are fixedly arranged on the top of the bottom plate 100.

[0075] It can be understood that the setting form of the working frame is not limited to the above one. For example, the mounting frame 110 can be directly arranged on the ground, or the working frame can be set as a wall, and the adjustment unit is directly arranged on the wall structure, as long as the installation of the adjustment unit and the scanning ring 500 can be realized, which will not be elaborated here.

[0076] In a preferred embodiment, the adjustment unit includes a transverse movement component arranged on the mounting frame 110, a telescopic unit fixedly connected to the transverse movement component, and a rotation unit.

[0077] Among them, the lateral movement component is used for adjusting the position of the scanning ring 500 in the horizontal direction, the telescopic unit is used for adjusting the position of the scanning ring 500 in the vertical direction, and the rotating unit is used for rotating the scanning ring 500 along a predetermined axis.

[0078] In a preferred embodiment, as Figures 1 to 8 、 Figures 12 to 22 shown, the lateral movement component includes a lateral movement frame 610 fixedly connected to the scanning ring 500, and a lateral movement driving device disposed between the mounting frame 110 and the lateral movement frame 610.

[0079] In a preferred embodiment, as Figures 1 to 7 、 Figures 18 to 22 shown, the lateral movement driving device includes a lateral movement motor 613 fixedly connected to the mounting frame 110, a lateral movement main shaft 611 rotatably disposed on the mounting frame 110 and coupled to the lateral movement motor 613, and a lateral movement slider 612 fixedly disposed on the lateral movement frame 610 and threadedly connected to the lateral movement main shaft 611.

[0080] It can be understood that the lateral movement motor 613 can drive the lateral movement motor 613 to rotate. When the lateral movement motor 613 rotates, it can drive the lateral movement slider 612 to move along the axis of the lateral movement motor 613, thereby driving the lateral movement frame 610 and the scanning ring 500 to move synchronously, and further driving the position adjustment of the scanning ring 500 in the horizontal direction.

[0081] In a preferred embodiment, as Figures 5 to 7 shown, a lateral movement driving wheel 614 is fixedly provided on the power output shaft of the lateral movement motor 613, a lateral movement driven wheel 615 is fixedly provided on the lateral movement main shaft 611, and a lateral movement driving belt 617 is wound between the lateral movement driving wheel 614 and the lateral movement driven wheel 615.

[0082] It can be understood that when the lateral movement driving wheel 614 rotates, it can drive the lateral movement main shaft 611 and the lateral movement driven wheel 615 to rotate synchronously through the lateral movement driving belt 617.

[0083] In a preferred embodiment, as Figure 3 shown, there are two parallel lateral movement main shafts 611 rotatably provided on the mounting frame 110. Lateral movement driven wheels 615 are respectively fixedly provided on the two lateral movement main shafts 611, and the lateral movement driving belt 617 is wound between the lateral movement driving wheel 614 and the two lateral movement driven wheels 615.

[0084] In a preferred embodiment, as Figure 5 、 Figure 6 shown, at least one lateral movement idler wheel 616 is rotatably provided on the mounting frame 110.

[0085] Among them, the transverse movement drive belt 617 is wound and arranged between the transverse movement drive wheel 614, the transverse movement driven wheel 615 and the transverse movement transition wheel 616.

[0086] It can be understood that the transverse movement transition wheel 616 can improve the transmission stability of the transverse movement drive belt 617, reduce the shaking caused by the too long suspended part of the transverse movement drive belt 617, and improve the accuracy of the transverse movement control of the scanning ring 500.

[0087] In a preferred embodiment, as Figures 1 to 4 , Figures 18 to 22 shown, the telescopic unit includes a telescopic bracket and a telescopic drive mechanism 620 for driving the telescopic bracket to perform telescopic actions.

[0088] Among them, the fixed end of the telescopic bracket is installed on the transverse movement frame 610, the scanning ring 500 is rotatably arranged on the telescopic end of the telescopic bracket, and the rotating unit is fixedly arranged on the telescopic end of the telescopic bracket.

[0089] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figure 11 , Figures 13 to 15 , Figures 18 to 22 shown, the telescopic drive mechanism 620 includes a lifting shaft 623 rotatably arranged on the fixed end of the telescopic bracket and a telescopic drive motor fixedly arranged on the fixed end of the telescopic bracket.

[0090] Among them, the telescopic end of the telescopic bracket is threadedly connected to the lifting shaft 623, the telescopic drive motor is coupled to the lifting shaft 623, and can drive the lifting shaft 623 to rotate on the fixed end of the telescopic bracket.

[0091] It can be understood that when the telescopic drive motor drives the lifting shaft 623 to rotate, the telescopic end of the telescopic bracket can move axially along the lifting shaft 623, so as to realize the movement of the telescopic end of the telescopic bracket relative to the fixed end, and further realize the position adjustment of the scanning ring 500 in the vertical direction.

[0092] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figure 11 , Figures 13 to 15 , Figures 18 to 22 shown, a drive shaft 622 is rotatably arranged on the fixed end of the telescopic bracket, and the central axis of the drive shaft 622 is located on a horizontal plane and is perpendicular to the central axis of the lifting shaft 623.

[0093] Among them, the power output shaft of the telescopic drive motor is parallel to the central axis of the lifting shaft 623. The drive shaft 622 is coupled to the power output shaft of the telescopic drive motor through a drive adapter 624 and coupled to the lifting shaft 623 through a transition adapter 625.

[0094] It can be understood that when the power output shaft of the telescopic drive motor rotates, it can drive the drive shaft 622 to rotate through the drive adapter 624, and the drive shaft 622 further drives the lifting shaft 623 to rotate through the transition adapter 625, so as to realize the position adjustment of the scanning ring 500 in the vertical direction.

[0095] In a preferred embodiment, as Figures 1 to 4 , Figures 8 to 15 , Figures 18 to 22 shown, the rotating unit includes a rotation drive motor 661 and a transmission seat body 666 fixedly arranged at the telescopic end of the telescopic bracket. A driven lead screw 664 coupled to the power output shaft of the rotation drive motor 661 is rotatably arranged on the transmission seat body 666.

[0096] The rotating unit further includes a half gear member 667 rotatably arranged at the telescopic end of the telescopic bracket. A transfer fixing plate 668 is fixedly connected to the half gear member 667, and the scanning ring 500 is fixedly arranged on the transfer fixing plate 668.

[0097] Among them, the central axis of the driven lead screw 664 is perpendicular to the predetermined axis, and the outer tooth surface of the half gear member 667 is meshed with the driven lead screw 664.

[0098] It can be understood that when the rotation drive motor 661 drives the driven lead screw 664 to rotate, the driven lead screw 664 can drive the half gear member 667 to rotate, so as to drive the scanning ring 500 to rotate relative to the telescopic bracket.

[0099] It should be noted that the setting form of the rotating unit is not limited to the above one. For example, it can also be set to provide a gear member meshed with the outer tooth surface of the half gear member 667 on the power output shaft of the rotation drive motor 661, that is, directly drive the half gear member 667 to rotate through the rotation drive motor 661. However, in this setting form, the load on the rotation drive motor 661 is relatively large. By arranging the driven lead screw 664 perpendicular to the rotation axis of the scanning ring 500, the supporting ability for the scanning ring 500 can be improved, and a self-locking structure can be set in the meshing and matching form of the driven lead screw 664 and the half gear member 667, further improving the rotation adjustment reliability of the scanning ring 500.

[0100] In a preferred embodiment, as Figures 1 to 4 , Figures 8 to 15 , Figures 18 to 22As shown, a rotary drive wheel 662 is fixedly provided on the power output shaft of the rotary drive motor 661, a driven drive wheel 665 is fixedly provided on the driven lead screw 664, and a rotary transmission belt 663 is wound between the rotary drive wheel 662 and the driven drive wheel 665.

[0101] It can be understood that when the rotary drive motor 661 drives the rotary drive wheel 662 to rotate, it can drive the driven lead screw 664 to rotate synchronously through the rotary transmission belt 663.

[0102] In a preferred embodiment, as Figure 11 shown, two limit members 669 are fixedly provided on the half gear member 667, and the two limit members 669 can respectively abut against the transmission seat body 666 when the half gear member 667 rotates to limit the rotation angle range of the scanning ring 500.

[0103] It can be understood that the rotation limiting structure of the scanning ring 500 is not limited to the above one, as long as it can satisfy the angular rotation of the scanning ring 500 within a predetermined range, which will not be elaborated here.

[0104] In a preferred embodiment, as Figure 1 、 Figure 2 、 Figures 13 to 15 、 Figures 18 to 22 shown, the fixed end of the telescopic bracket is rotatably arranged on the transverse moving frame 610, and the adjusting unit further includes a yaw drive assembly 900 for adjusting the rotation angle of the telescopic bracket relative to the transverse moving frame 610.

[0105] It can be understood that after adjusting the relative angle between the telescopic bracket and the transverse moving frame 610 through the yaw drive assembly 900, it can synchronously drive the scanning ring 500 to yaw. Through the yaw of the scanning ring 500, the central axis of the scanning ring 500 can form an angle with the horizontal plane, so as to be applicable to the inclined sitting posture of the patient and further improve the practicability of the CT scanning system.

[0106] In a preferred embodiment, as Figure 1 、 Figure 2 、 Figures 18 to 22 shown, at least one positioning device 400 is further fixedly provided on the bottom plate 100.

[0107] It can be understood that the positioning device 400 is used for scanning and positioning of the patient in the lying posture.

[0108] In a preferred embodiment, as Figure 1 、 Figure 2 、 Figures 18 to 22As shown, the detection bed assembly 200 includes a bed driving assembly 210 and a bed board main body 220 fixedly arranged on the action execution end of the bed driving assembly 210. The bed driving assembly 210 can drive the bed board main body 220 to rotate on a horizontal plane.

[0109] The detection seat assembly 300 includes a seat driving assembly 310 and a seat main body 320 fixedly arranged on the action execution end of the seat driving assembly 310. The seat driving assembly 310 can drive the seat main body 320 to horizontally move in a predetermined direction.

[0110] Wherein, the predetermined direction is specifically set to be perpendicular to the horizontal movement direction of the scanning ring 500.

[0111] As Figures 18 to 20 shown, when performing the lying posture detection, the bed board main body 220 rotates to extend along the horizontal movement direction of the scanning ring 500, the seat main body 320 horizontally moves to deviate from the horizontal movement track of the scanning ring 500, and the scanning ring 500 is in the horizontal detection state, that is, the central axis matches the extension direction of the bed board main body 220. The telescopic bracket extends so that the scanning ring 500 corresponds to the position of the bed board main body 220. At the same time, the horizontal movement assembly drives the horizontal movement frame 610 to horizontally move, thereby driving the scanning ring 500 to pass through the bed board main body 220 to implement the detection action on the patient;

[0112] As Figure 21 、 Figure 22 shown, when performing the standing posture detection, the bed board main body 220 rotates to be perpendicular to the horizontal movement direction of the scanning ring 500, the seat main body 320 horizontally moves to the horizontal movement track of the scanning ring 500, and the scanning ring 500 is in the longitudinal detection state, that is, the central axis matches the body extension direction of the patient on the seat main body 320. At the same time, the horizontal movement assembly drives the horizontal movement frame 610 to horizontally move, so that the scanning ring 500 moves to the corresponding position of the seat main body 320, and then the telescopic bracket extends, driving the scanning ring 500 to pass through the seat main body 320 to implement the detection action on the patient.

[0113] In the embodiment of the present application, by adopting the above CT scanning system, through the orientation adjustment of the bed board main body 220 and the seat main body 320 in different detection states, it is possible to provide an avoidance space for the horizontal movement, lifting and angle adjustment of the scanning ring 500, improve the space utilization rate, and is beneficial to further reducing the occupied volume of the scanning system so that it can be applied to a standard scanning room.

[0114] In a preferred embodiment, as Figure 23 shown, it further includes an early warning unit 510 for safely monitoring the detection state between the scanning ring 500 and the patient.

[0115] It can be understood that the warning unit 510 can be set as a visual monitoring device with a monitoring plane, which can be fixedly arranged at the telescopic end of the telescopic bracket, so as to maintain the relative position with the scanning ring 500. The monitoring plane can be set as the end face of the scanning ring 500 close to the patient side, so as to monitor the penetration of the scanning ring 500, or the monitoring plane can be set as the axial extension plane of the cavity of the scanning ring 500, so as to monitor whether there will be position interference on the moving path of the scanning ring 500, ensure the safety of the scanning ring 500 during operation, and avoid harm to the patient.

[0116] In a preferred embodiment, the scanning ring 500 adopts the scanning ring structure in a Chinese patent with the publication number CN114631836B, a mobile rail CT, for example, the interior of the scanning ring 500 can include a rotor assembly and a stator assembly, and a rotor drive assembly is arranged between the rotor assembly and the stator assembly.

[0117] Or the cooperation structure between the scanning ring 500 and the telescopic bracket adopts the relevant technology in the above patent. For example, components such as a control box, an operation panel, a cable rope, a cable handle, a cable hook, a camera, and a scanning radar can be arranged inside the telescopic bracket.

[0118] Of course, the structure of the scanning ring 500 in this embodiment is not limited to the above one, as long as it can realize CT detection of the patient, which will not be elaborated here.

[0119] Embodiment 2

[0120] As Figures 1 to 23 shown, the embodiment of the present application provides a CT scanning device for multi-plane imaging, which can be applied to the CT scanning system in Embodiment 1 above, including a scanning ring 500, a transverse moving frame 610, a cantilever member 630, and a telescopic driving mechanism 620 for driving the cantilever member 630 to perform telescopic actions.

[0121] The cantilever member 630 includes two rotating swing arms 631 that are symmetrically arranged about the central axis of the scanning ring 500 and are respectively rotatably connected to the transverse moving frame 610. The telescopic swing arm 632 is telescopically arranged on the rotating swing arm 631. The scanning ring 500 is rotatably arranged between the two telescopic swing arms 632, and two sets of rotating units are respectively fixedly arranged on the two telescopic swing arms 632.

[0122] Among them, it further includes a yaw driving assembly 900 for adjusting the rotation angle of the rotating swing arm 631 relative to the transverse moving frame 610, a rotating unit for driving the scanning ring 500 to rotate relative to the telescopic swing arm 632, and a telescopic driving mechanism 620 for driving the telescopic swing arm 632 to perform telescopic actions relative to the rotating swing arm 631.

[0123] It can be understood that, as Figure 23As shown, when performing the lying position detection, the telescopic drive mechanism 620 drives the scanning ring 500 to rise and fall to align with the patient in the horizontal direction. At the same time, the scanning ring 500 is rotated along a predetermined axis until the central axis is horizontal. Finally, the adjustment assembly drives the scanning ring 500 to pass through the patient to complete the detection action. When performing the standing position detection, the adjustment assembly drives the scanning ring 500 to move to align longitudinally with the patient. The scanning ring 500 is rotated along a predetermined axis until the central axis is perpendicular to the ground. The telescopic drive mechanism 620 drives the scanning ring 500 to rise and fall through the patient to be detected to complete the detection action.

[0124] In the embodiment of the present application, the above CT scanning device for multi-plane imaging is adopted. A double-arm suspension bracket structure is used. Through the linear expansion and contraction of the telescopic swing arm 632 relative to the rotating swing arm 631, combined with the yaw angle of the cantilever member 630 and the rotation angle adjustment of the scanning ring 500, rapid switching under the standing position and lying position detection requirements can be achieved, which is beneficial to the miniaturization of the scanning device, as well as the improvement of multi-position compatibility, imaging quality, and operation efficiency.

[0125] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figures 13 to 15 , Figures 18 to 22 shown, a drive bracket 621 is fixedly provided between the two rotating swing arms 631. The telescopic drive mechanism 620 includes a lifting shaft 623 rotatably provided on the rotating swing arm 631 and a telescopic drive motor fixedly provided on the drive bracket 621.

[0126] Among them, the telescopic swing arm 632 is threadedly connected to the lifting shaft 623. The telescopic drive motor is coupled to the lifting shaft 623 and can drive the lifting shaft 623 to rotate on the rotating swing arm 631.

[0127] It can be understood that when the telescopic drive motor drives the lifting shaft 623 to rotate, the telescopic swing arm 632 can move axially along the lifting shaft 623, so as to realize the movement of the telescopic swing arm 632 relative to the rotating swing arm 631, and further realize the position adjustment of the scanning ring 500 in the vertical direction.

[0128] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figures 13 to 15 , Figures 18 to 22 shown, a drive shaft 622 is rotatably provided on the drive bracket 621. The central axis of the drive shaft 622 is located on a horizontal plane and is perpendicular to the central axis of the lifting shaft 623.

[0129] Among them, the power output shaft of the telescopic drive motor is parallel to the central axis of the lifting shaft 623. The drive shaft 622 is coupled to the power output shaft of the telescopic drive motor through a drive adapter 624 and is coupled to the two lifting shafts 623 through two transition adapters 625 respectively.

[0130] It can be understood that when the power output shaft of the telescopic drive motor rotates, it can drive the drive shaft 622 to rotate through the drive adapter 624. The drive shaft 622 further drives the lifting shaft 623 to rotate through the transition adapter 625, so as to realize the position adjustment of the scanning ring 500 in the vertical direction.

[0131] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figures 13 to 15 , Figures 18 to 22 shown, it further includes a failure self-locking device for restricting the relative movement between the telescopic swing arm 632 and the rotating swing arm 631.

[0132] It can be understood that when the telescopic drive motor fails or loses power, since the telescopic swing arm 632 is connected to the scanning ring 500 and realizes telescoping through the lifting shaft 623, when the lifting shaft 623 loses rotational limit, the telescopic swing arm 632 will descend under the action of gravity, posing a great safety hazard. Through the failure self-locking device, the extending action of the telescopic swing arm 632 relative to the rotating swing arm 631 can be restricted under this working condition, so as to ensure the position locking of the scanning ring 500, avoid harm to the patient, and improve the safety of the scanning device.

[0133] In a preferred embodiment, as Figures 1 to 4 , Figure 8 , Figure 10 , Figures 12 to 15 , Figures 18 to 22 shown, the failure self-locking device includes a fixing plate 830 and a support seat 850 fixedly arranged on the drive bracket 621. A locking rotating shaft 810 is rotatably arranged on the support seat 850. A locking wheel 840 is fixedly arranged on the locking rotating shaft 810. A driving wheel 626 is fixedly arranged on the drive shaft 622. A linkage belt 880 is wound between the locking wheel 840 and the driving wheel 626.

[0134] Among them, a limiter 820 is fixedly arranged between the locking rotating shaft 810 and the fixing plate 830. In the power-off state, the limiter 820 can restrict the rotation of the locking rotating shaft 810 relative to the fixing plate 830, so as to restrict the relative movement between the telescopic swing arm 632 and the rotating swing arm 631.

[0135] In a preferred embodiment, in the power-off state, the limiter 820 can limit the one-way rotation of the locking rotating shaft 810 relative to the fixed plate 830, thereby restricting the extension movement of the telescopic swing arm 632 relative to the rotating swing arm 631.

[0136] In a preferred embodiment, the limiter 820 is specifically configured as an electromagnetic pawl and ratchet structure, that is, an elastic electromagnetic pawl member is fixedly arranged on the fixed plate 830, and a ratchet member is arranged on the locking rotating shaft 810. When in the power-off state, the elastic electromagnetic pawl member is powered off and meshes with the ratchet member under the action of its own elastic force, thereby realizing the one-way braking of the locking rotating shaft 810 relative to the fixed plate 830; in the normal working state, the elastic electromagnetic pawl member is powered on and disengages from the ratchet member under the action of magnetic force, so as not to interfere with the rotation of the drive shaft 622.

[0137] It can be understood that the setting form of the failure self-locking device is not limited to the above one. For example, a clutch or other forms of self-locking structures can also be used, as long as the failure protection between the rotating swing arm 631 and the telescopic swing arm 632 can be ensured, which will not be elaborated here.

[0138] In a preferred embodiment, as Figures 1 to 4 、 Figure 8 、 Figure 10 、 Figures 12 to 15 、 Figures 18 to 22 shown, it further includes a manual failure backup component for manually controlling the telescopic movement of the telescopic swing arm 632 relative to the rotating swing arm 631.

[0139] It can be understood that when the telescopic drive motor fails or loses power and fails, the failure self-locking device is activated and limits the one-way rotation of the locking rotating shaft 810 relative to the fixed plate 830, thereby restricting the extension movement of the telescopic swing arm 632 relative to the rotating swing arm 631. At this time, the manual failure backup component can control the retraction of the rotating swing arm 631 relative to the telescopic swing arm 632, so as to move the scanning ring 500 to the non-working area and improve the overall safety redundancy of the device.

[0140] In a preferred embodiment, as Figures 1 to 4 、 Figures 8 to 10 、 Figures 12 to 15 、 Figures 18 to 22 shown, the manual failure backup component includes an adapter shaft 710 arranged in parallel with the drive shaft 622, and an adjustment shaft 730 rotatably arranged on the rotating swing arm 631 and parallel to the lifting shaft 623.

[0141] A coupling wheel 720 is fixedly arranged on the adapter shaft 710, and a linkage belt 880 is wound around the drive wheel 626, the locking wheel 840, and the coupling wheel 720. One end of the adjustment shaft 730 away from the telescopic swing arm 632 is coupled to the adapter shaft 710 through an adjustment adapter 731.

[0142] Among them, the manual failure backup component further includes a hand crank 732, which is detachably connected to one end of the adjustment shaft 730 away from the adjustment adapter 731 and is used to manually drive the adjustment shaft 730 to rotate.

[0143] In a preferred embodiment, as Figure 12 shown, at least one linkage shaft 860 is rotatably provided on the drive bracket 621, and a linkage wheel 870 is fixedly provided on the linkage shaft 860.

[0144] Among them, the linkage belt 880 is wound between the drive wheel 626, the locking wheel 840, the connecting wheel 720, and the linkage wheel 870.

[0145] It can be understood that the structural setting form of the manual failure backup component is not limited to the above one. Through the cooperation of the detachable hand crank 732 and the adjustment shaft 730, it is convenient for the staff to operate. After the telescopic drive motor fails or loses power, the position of the scanning ring 500 can be quickly adjusted to ensure the safety performance of the device.

[0146] In a preferred embodiment, as Figures 1 to 3 , Figure 8 , Figures 12 to 15 , Figures 18 to 22 shown, a gas spring device 650 is fixedly connected between the corresponding rotating swing arm 631 and the telescopic swing arm 632.

[0147] It can be understood that the gas spring device 650 can balance the load between the corresponding rotating swing arm 631 and the telescopic swing arm 632, ensure that the scanning ring 500 will not freely fall in the fracture state of the cantilever member 630, avoid harm to the patient, improve the safety of the scanning device, and at the same time buffer the relative position adjustment between the rotating swing arm 631 and the telescopic swing arm 632, improving the working stability of the device.

[0148] In a preferred embodiment, as Figure 23 shown, it further includes an early warning unit 510 for safely monitoring the detection state between the scanning ring 500 and the patient.

[0149] It can be understood that the early warning unit 510 can be set as a visual monitoring device with a monitoring plane, which can be fixedly provided on the telescopic swing arm 632 to maintain the relative position with the scanning ring 500. The monitoring plane can be set as the end face of the scanning ring 500 close to the patient to monitor the penetration of the scanning ring 500, or the monitoring plane can be set as the axial extension plane of the cavity of the scanning ring 500 to monitor whether there will be position interference on the moving path of the scanning ring 500, ensuring the safety of the scanning ring 500 during operation and avoiding harm to the patient.

[0150] In a preferred embodiment, the scanning ring 500 adopts the scanning ring structure in a mobile rail CT in a Chinese patent with the publication number CN114631836B. For example, the interior of the scanning ring 500 can include a rotor assembly and a stator assembly, and a rotor drive assembly is provided between the rotor assembly and the stator assembly.

[0151] Or the mating structure between the scanning ring 500 and the cantilever member 630 adopts the relevant technology in the above patent. For example, components such as a control box, an operation panel, a cable rope, a cable handle, a cable hook, a camera, and a scanning radar can be provided inside the cantilever member 630.

[0152] Of course, the structure of the scanning ring 500 in this embodiment is not limited to the above one, as long as it can achieve CT detection of patients, which will not be elaborated here.

[0153] Embodiment 3

[0154] As Figures 1 to 23 shown, the embodiment of the present application provides a CT scanning device that can be applied to the CT scanning system in Embodiment 1 above, including a scanning ring 500, a transverse movement frame 610, and a telescopic bracket. The fixed end of the telescopic bracket is rotatably provided on the transverse movement frame 610, and the scanning ring 500 is rotatably provided on the telescopic end of the telescopic bracket.

[0155] It further includes a yaw drive assembly 900 for adjusting the rotation angle of the telescopic bracket relative to the transverse movement frame 610. The yaw drive assembly 900 includes a yaw drive shaft 920, a sliding table 930, and a driven adapter. The yaw drive shaft 920 is rotatably provided on the transverse movement frame 610, the sliding table 930 is slidably provided on the fixed end of the telescopic bracket, the driven adapter is rotatably connected to the sliding table 930, and is threadedly connected to the yaw drive shaft 920.

[0156] Wherein, the central axis of the yaw drive shaft 920 is located on a horizontal plane and extends along the yaw direction of the telescopic bracket, and the sliding direction of the sliding table 930 is parallel to the telescopic direction of the telescopic bracket.

[0157] It can be understood that when the yaw drive shaft 920 rotates relative to the transverse movement frame 610, the driven adapter axially moves along the yaw drive shaft 920 under the action of the thread. As the driven adapter moves, the telescopic bracket yaws relative to the transverse movement frame 610, and at the same time, the sliding table 930 slides relative to the fixed end of the telescopic bracket, so as to adapt to the relative position change between the telescopic bracket and the driven adapter.

[0158] In the embodiment of the present application, by adopting the above CT scanning device, the yaw drive assembly 900 is set as a lateral drive structure, so that the telescopic axis of the telescopic bracket forms an angle with the central axis of the yaw drive shaft 920, thereby enabling the load center of gravity to directly act on the axial direction of the yaw drive shaft 920. Compared with the traditional rotary drive scheme, it can effectively improve the anti-overturning moment and bearing capacity of the telescopic bracket in the yaw state, and ensure the support stability and scanning accuracy of the inclined scanning ring 500.

[0159] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, two yaw drive shafts 920 are rotatably provided on the transverse carriage 610, and the two yaw drive shafts 920 are symmetrically arranged with respect to the central axis of the scanning ring 500.

[0160] In a preferred embodiment, taking the telescopic bracket in the vertical state as the reference benchmark, the yaw angle of the telescopic bracket relative to the transverse carriage 610 is specifically set to ±15°.

[0161] It should be noted that the yaw angle range of the telescopic bracket relative to the transverse carriage 610 can depend on the moving stroke of the driven adapter on the yaw drive shaft 920, that is, the maximum yaw angles respectively correspond to the two stroke endpoints of the driven adapter on the yaw drive shaft 920.

[0162] Of course, the yaw angle range of the telescopic bracket relative to the transverse carriage 610 can also be set to be controlled by the rotation of the yaw drive shaft 920, that is, the yaw angle of the telescopic bracket relative to the transverse carriage 610 is monitored by a sensor, and the rotation of the yaw drive shaft 920 is restricted when the predetermined angle is reached, so as to realize the control of the yaw angle of the telescopic bracket relative to the transverse carriage 610.

[0163] As Figure 13 shown, the telescopic bracket is in the extended state, and the scanning ring 500 is in the lateral detection state, that is, the central axis matches the body extension direction of the patient in the lying position. The telescopic bracket is in the yaw state relative to the transverse carriage 610, and the yaw angle is 15°.

[0164] As Figure 14 、 Figure 15 shown, the telescopic bracket is in the extended state, and the scanning ring 500 is in the longitudinal detection state, that is, the central axis matches the body extension direction of the patient in the standing position (standing or sitting). The telescopic bracket is in the yaw state relative to the transverse carriage 610, and the yaw angle is 15°.

[0165] It can be understood that by the yaw angle of the telescopic bracket relative to the transverse movement frame 610 and in combination with the rotation angle of the scanning ring 500 relative to the telescopic bracket, the inclination detection at a certain angle with respect to the horizontal direction or the vertical direction can be achieved, so as to cope with the detection in the case of an angled body in the standing or lying position of the patient and improve the overall applicability of the device.

[0166] In a preferred embodiment, as Figures 1 to 4 、 Figures 13 to 22 shown, the driven adapter includes a transverse movement screw block 940 threadedly connected to the yaw drive shaft 920, and a fixed block 950 fixedly connected to the transverse movement screw block 940 and rotatably connected to the sliding table 930.

[0167] In a preferred embodiment, as Figure 16 shown, a yaw guide rail 970 parallel to the central axis of the yaw drive shaft 920 is fixedly provided on the transverse movement frame 610, and a second driven slider 960 slidably connected to the yaw guide rail 970 is fixedly provided on the driven adapter.

[0168] It can be understood that through the sliding guidance between the second driven slider 960 and the yaw guide rail 970, the movement stability of the driven adapter can be improved, thereby improving the yaw adjustment accuracy of the scanning ring 500.

[0169] It should be noted that the guiding structure of the driven adapter is not limited to the above one. For example, a guide rod slidably connected to the fixed block 950 is provided on the transverse movement frame 610, as long as it can guide the translation of the driven adapter along the axial direction of the yaw drive shaft 920, which will not be elaborated here.

[0170] In a preferred embodiment, as Figure 8 、 Figure 10 shown, a sliding guide rail 931 is fixedly provided on the fixed end of the telescopic bracket, and a first driven slider 932 slidably connected to the sliding guide rail 931 is fixedly provided on the sliding table 930.

[0171] Among them, the extending direction of the sliding guide rail 931 is parallel to the telescopic direction of the telescopic bracket.

[0172] In a preferred embodiment, it further includes a yaw drive assembly for driving the yaw drive shaft 920 to rotate relative to the transverse movement frame 610.

[0173] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, the yaw drive assembly includes a yaw motor 910 fixedly provided on the transverse movement frame 610, and the power output shaft of the yaw motor 910 is coupled to the yaw drive shaft 920.

[0174] In a preferred embodiment, as Figures 1 to 5 、Figures 13 to 22 As shown, a yaw drive wheel 980 is fixedly provided on the yaw drive shaft 920, and a yaw power wheel 911 is fixedly provided on the power output shaft of the yaw motor 910. A yaw drive belt 990 is wound between the yaw drive wheel 980 and the yaw power wheel 911.

[0175] It can be understood that when the yaw motor 910 drives the yaw power wheel 911 to rotate, it can drive the yaw drive wheel 980 and the yaw drive shaft 920 to rotate synchronously through the yaw drive belt 990, thereby realizing the yaw control of the telescopic bracket.

[0176] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, it further includes an auxiliary guide wheel assembly disposed between the yaw power wheel 911 and the yaw drive wheel 980.

[0177] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, the auxiliary guide wheel assembly includes a first tension wheel 981 rotatably disposed on the transverse movement frame 610. The central axis of the first tension wheel 981 is parallel to the yaw drive shaft 920, and the scanning ring 500 is symmetric about the central axis of the first tension wheel 981.

[0178] Among them, the yaw drive belt 990 is wound between the yaw drive wheel 980, the first tension wheel 981, and the yaw power wheel 911.

[0179] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, the auxiliary guide wheel assembly further includes two groups of second tension wheels 982 rotatably disposed on the transverse movement frame 610. The central axis of the second tension wheel 982 is on the same horizontal plane as the central axis of the first tension wheel 981. The yaw drive belt 990 is wound between the yaw drive wheel 980, the first tension wheel 981, the second tension wheel 982, and the yaw power wheel 911.

[0180] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, each group of second tension wheels 982 includes at least one second tension wheel 982.

[0181] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, the two groups of second tension wheels 982 are symmetrically arranged about the central axis of the first tension wheel 981.

[0182] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22As shown, the auxiliary guide wheel assembly further includes at least one third tension wheel 983 rotatably arranged on the transverse movement frame 610, and the yaw drive belt 990 is wound around the yaw drive wheel 980, the first tension wheel 981, the second tension wheel 982, the third tension wheel 983, and the yaw power wheel 911.

[0183] It can be understood that the setting form of the auxiliary guide wheel assembly is not limited to the above one, as long as the power transmission between the yaw power wheel 911 and the yaw drive shaft 920 can be achieved, which will not be elaborated here.

[0184] In a preferred embodiment, as Figures 1 to 5 、 Figures 13 to 22 shown, it further includes a yaw angle sensing device 640 for monitoring the yaw angle of the telescopic support relative to the transverse movement frame 610.

[0185] In a preferred embodiment, the yaw angle sensing device 640 is specifically set as an angle encoder, and the angle encoder is arranged at the corresponding position of the rotating shaft between the telescopic support and the transverse movement frame 610.

[0186] It can be understood that the setting form of the yaw angle sensing device 640 is not limited to the above one. For example, the yaw angle of the telescopic support can also be directly calculated by monitoring the relative position of the driven adapter on the yaw drive shaft 920, as long as the yaw angle monitoring of the telescopic support can be achieved, which will not be elaborated here.

[0187] In a preferred embodiment, as Figures 1 to 22 shown, it further includes a rotation unit for driving the scanning ring 500 to rotate relative to the telescopic end of the telescopic support, and / or a telescopic drive mechanism 620 for driving the telescopic support to perform telescopic actions.

[0188] In a preferred embodiment, the rotation angle range of the scanning ring 500 relative to the telescopic end of the telescopic support is specifically set to be greater than 90°.

[0189] Among them, the scanning ring 500 can rotate along a predetermined axis to a state where the central axis is horizontal or vertical.

[0190] It can be understood that through the yaw control of the telescopic support by the yaw drive assembly 900 and the rotation control of the scanning ring 500 by the rotation unit, the scanning operation of patients in different postures can be adapted, greatly improving the practicability of the scanning device.

[0191] In a preferred embodiment, as Figure 23 shown, it further includes a warning unit 510 for safely monitoring the detection state between the scanning ring 500 and the patient.

[0192] It can be understood that the warning unit 510 can be set as a visual monitoring device with a monitoring plane, which can be fixedly arranged at the telescopic end of the telescopic bracket, so as to maintain the relative position with the scanning ring 500. The monitoring plane can be set as the end face of the scanning ring 500 close to the patient, so as to monitor the penetration of the scanning ring 500, or the monitoring plane can be set as the axial extension plane of the cavity of the scanning ring 500, so as to monitor whether there will be position interference on the moving path of the scanning ring 500, ensure the safety of the scanning ring 500 during operation, and avoid harm to the patient.

[0193] In a preferred embodiment, the scanning ring 500 adopts the scanning ring structure in a Chinese patent with the publication number CN114631836B, a mobile rail CT, for example, the inside of the scanning ring 500 can include a rotor assembly and a stator assembly, and a rotor drive assembly is arranged between the rotor assembly and the stator assembly.

[0194] Or the matching structure between the scanning ring 500 and the telescopic bracket adopts the relevant technologies in the above patent. For example, components such as a control box, an operation panel, a cable rope, a cable handle, a cable hook, a camera, and a scanning radar can be arranged inside the telescopic bracket.

[0195] Of course, the structure of the scanning ring 500 in this embodiment is not limited to the above one, as long as it can achieve CT detection of the patient, which will not be elaborated here.

[0196] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described method may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0197] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A CT scanning device for multi-planar imaging, characterized in that, It includes a scanning ring, a transverse moving frame, a cantilever member, and a telescopic driving mechanism for driving the cantilever member to perform telescopic movements: The cantilever member includes two rotating swing arms symmetrically arranged about the central axis of the scanning ring and respectively rotatably connected to the transverse moving frame. An extensible swing arm is telescopically provided on the rotating swing arm, and the scanning ring is rotatably arranged between the two extensible swing arms; Among them, it further includes a yaw driving assembly for adjusting the rotation angle of the rotating swing arm relative to the transverse moving frame, a rotating unit for driving the scanning ring to rotate relative to the extensible swing arm, and a telescopic driving mechanism for driving the extensible swing arm to perform telescopic movements relative to the rotating swing arm; There are two sets of the rotating units and they are respectively fixedly arranged on the two extensible swing arms.

2. The CT scanning device for multi-plane imaging according to claim 1, wherein, A driving bracket is fixedly arranged between the two rotating swing arms. The telescopic driving mechanism includes: A lifting shaft rotatably arranged on the rotating swing arm; A telescopic driving motor fixedly arranged on the driving bracket; Among them, the extensible swing arm is threadedly connected to the lifting shaft, and the telescopic driving motor is coupled to the lifting shaft and can drive the lifting shaft to rotate on the rotating swing arm.

3. The CT scanning device for multi-planar imaging according to claim 2, characterized in that, A driving shaft is rotatably arranged on the driving bracket. The central axis of the driving shaft is located on a horizontal plane and is perpendicular to the central axis of the lifting shaft; Among them, the power output shaft of the telescopic driving motor is parallel to the central axis of the lifting shaft. The driving shaft is coupled to the power output shaft of the telescopic driving motor through a driving adapter and is coupled to the two lifting shafts respectively through two transition adapters.

4. A CT scanning device for multi-planar imaging according to claim 3, characterized in that, It further includes a failure self-locking device for restricting the relative movement between the extensible swing arm and the rotating swing arm.

5. A CT scanning device for multi-planar imaging according to claim 4, characterized in that, The failure self-locking device includes a fixing plate and a support seat fixedly arranged on the driving bracket; A locking rotating shaft is rotatably arranged on the support seat. A locking wheel is fixedly arranged on the locking rotating shaft, a driving wheel is fixedly arranged on the driving shaft, and a linkage belt is wound between the locking wheel and the driving wheel; Among them, a limiter is arranged between the locking rotating shaft and the fixing plate; In a power-off state, the limiter can restrict the rotation of the locking rotating shaft relative to the fixing plate.

6. The CT scanning device for multi-planar imaging according to claim 5, characterized in that, It further includes a manual failure backup component for controlling the movement of the extensible swing arm relative to the rotating swing arm.

7. The CT scanning device for multi-planar imaging according to claim 6, wherein, The manual failure backup component includes an engagement shaft arranged in parallel with the driving shaft, and an adjustment shaft rotatably arranged on the rotating swing arm and parallel to the lifting shaft; An engagement wheel is fixedly arranged on the engagement shaft. A linkage belt is wound between the engagement wheel, the driving wheel, and the locking wheel. One end of the adjustment shaft away from the extensible swing arm is coupled to the engagement shaft through an adjustment adapter.

8. A CT scanning device for multi-planar imaging according to claim 7, characterized in that, The manual failure backup component further includes a hand crank; Among them, the hand crank is detachably connected to one end of the adjustment shaft away from the adjustment adapter and is used to drive the adjustment shaft to rotate.

9. The CT scanning device for multi-planar imaging according to claim 7, characterized in that, At least one linkage shaft is rotatably arranged on the driving bracket between the two rotating swing arms, and a linkage wheel is fixedly arranged on the linkage shaft; Among them, the linkage belt is wound between the driving wheel, the locking wheel, the engagement wheel, and the linkage wheel.

10. A CT scanning device for multi-planar imaging according to claim 1, characterized in that, A gas spring device is fixedly connected between the corresponding rotating swing arm and the extensible swing arm.

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