Examination table and CT scanning system

Abstract

The application relates to an examination bed and a CT scanning system, comprising a base, a bearing plate arranged on one side of the base, a lifting assembly, the lifting assembly comprising a first adjusting rod and a second adjusting rod, the first adjusting rod and the second adjusting rod being cross-connected and rotationally connected, two ends of the first adjusting rod being movably connected with the bearing plate and the base respectively, and two ends of the second adjusting rod being movably connected with the bearing plate and the base respectively, and a driving assembly, wherein the first adjusting rod and / or the second adjusting rod is a telescopic structure, so that the bearing plate is deflected relative to the base. At least one of the first adjusting rod and the second adjusting rod is designed as a telescopic structure, so that the inclination operation of the bearing plate relative to the base is realized. The examination bed provided by the application has fewer parts and a simpler structure, can flexibly and stably adjust the height and the inclination angle of the bearing plate, can reduce the cost and the assembly complexity, and greatly reduces the failure rate.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to examination beds and CT scanning systems. Background Technology

[0002] Currently, medical examination beds, such as those used in X-ray computed tomography (CT) equipment, require oblique scanning in certain clinical scenarios, such as areas with curved or tilted anatomical structures like the coronary arteries, spine, and head and neck. This can effectively avoid image truncation caused by transverse scanning, thereby displaying the target area completely in a single or continuous slice and improving the diagnostic value of the image.

[0003] In related technologies, tilt scanning is achieved through a tilting mechanism built into the scanning carriage. However, this mechanism typically includes complex mechanical structures, high-precision bearings, encoders, limit devices, and drive systems. Furthermore, due to the large weight and complex structure of the scanning carriage itself, the design, manufacturing, and maintenance costs of the tilting mechanism are high, and it also suffers from problems such as insufficient reliability and slow response speed. Utility Model Content

[0004] Therefore, it is necessary to provide an examination bed and CT scanning system to address the problems of complex structure and insufficient reliability of traditional tilting mechanisms.

[0005] In a first aspect, embodiments of this application provide an examination bed used in a medical scanning system, the medical scanning system including scanning equipment; the examination bed includes:

[0006] Base;

[0007] A support plate extends along the axial direction of the scanning device;

[0008] The bed board is slidably supported on the support plate;

[0009] A lifting assembly is disposed between the base and the support plate. The lifting assembly includes a first adjusting rod and a second adjusting rod, which are intersecting and rotatably connected. The two ends of the first adjusting rod are movably connected to the support plate and the base, respectively, and the two ends of the second adjusting rod are movably connected to the support plate and the base, respectively.

[0010] The first adjusting rod and / or the second adjusting rod are telescopic structures. By adjusting at least one of the first adjusting rod and the second adjusting rod, the first adjusting rod and the second adjusting rod have different lengths, the front end and the rear end of the support plate are at different heights, and the bed board supported by the support plate is tilted relative to the scanning device.

[0011] In one embodiment, the second adjusting rod is the telescopic structure, and the second adjusting rod includes a fixed rod and a movable rod connected to each other. One end of the fixed rod is rotatably connected to the base; the end of the movable rod away from the fixed rod is configured to slide relative to the support plate.

[0012] The fixed rod and the first adjusting rod intersect each other and are rotatably connected;

[0013] And / or, the second adjusting rod is one of a hydraulic telescopic structure, an electric telescopic structure, or a pneumatic telescopic structure.

[0014] In one embodiment, the examination bed further includes a first slider and a second slider;

[0015] One end of the first adjusting rod is slidably connected to the base via the first slider, and the other end of the first adjusting rod is rotatably connected to the support plate;

[0016] One end of the second adjusting rod is slidably connected to the support plate via the second slider, and the other end of the second adjusting rod is rotatably connected to the base.

[0017] In one embodiment, the examination bed further includes a drive assembly, the output of which is connected to the first adjusting rod or the second adjusting rod; the drive assembly is configured to drive at least one end of the first adjusting rod or the second adjusting rod to move horizontally to adjust the included angle between the first adjusting rod and the second adjusting rod so that the support plate moves away from or closer to the base.

[0018] In one embodiment, the examination bed further includes a connecting rod threadedly connected to the first slider, one end of the connecting rod being connected to the output end of the drive assembly, and the connecting rod being configured to rotate under the drive of a drive motor so that the first slider moves relative to the base;

[0019] The drive component includes a drive motor.

[0020] In one embodiment, one end of the first adjusting rod is hinged to the first slider, and the other end is hinged to the support plate;

[0021] One end of the second adjusting rod is hinged to the second slider, and the other end is hinged to the base.

[0022] In one embodiment, the base is provided with a first guide rail on the side facing the support plate, and the second slider is embedded in the first guide rail;

[0023] The support plate is provided with a second guide rail on the side facing the base, and the first slider is embedded in the second guide rail;

[0024] The second guide rail extends in the same direction as the first guide rail.

[0025] In one embodiment, a limiting block is provided at the end of the first guide rail.

[0026] In one embodiment, the examination bed further includes a controller communicatively connected to the drive assembly and the second adjustment lever, the controller being configured to receive adjustment signals and send them to at least one of the drive assembly and the second adjustment lever;

[0027] And / or, the examination bed further includes an angle sensor disposed on the support plate, the angle sensor being communicatively connected to the controller.

[0028] Secondly, embodiments of this application provide a CT scanning system, including a CT scanning device and an examination bed; the examination bed includes a bed board, a base and a lifting assembly, the lifting assembly is disposed between the base and the bed board, and the lifting assembly includes a first adjusting rod and a second adjusting rod, the first adjusting rod and the second adjusting rod intersecting each other and being rotatably connected;

[0029] Wherein, the first adjusting rod and / or the second adjusting rod are telescopic structures;

[0030] The examination bed is tiltable relative to the CT scanning device. The tilting of the examination bed is achieved by adjusting at least one of the first adjusting rod and the second adjusting rod, such that the first adjusting rod and the second adjusting rod have different lengths, so that the bed board deflects and / or moves relative to the base.

[0031] The aforementioned examination bed and CT scanning system, by setting a lifting assembly between the base and the support plate, and the lifting assembly including a first adjusting rod and a second adjusting rod that are intersecting and rotatably connected, allows the first and second adjusting rods to be movably connected to the base and the support plate. By designing at least one of the first and second adjusting rods as a telescopic structure, the tilting operation of the support plate relative to the base is achieved. The examination bed provided by this application has fewer parts and a simpler structure. While flexibly and stably adjusting the height and tilt angle of the support plate, it also reduces costs and assembly complexity, and greatly reduces the failure rate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of a medical scanning system provided according to some embodiments of this application.

[0033] Figure 2This is a schematic diagram of the structure of an examination bed provided according to some embodiments of this application.

[0034] Figure 3 This is a structural schematic diagram of an examination bed in a tilted-forward state according to some embodiments of this application.

[0035] Figure 4 This is a structural schematic diagram of an examination bed in a tilted-back state according to some embodiments of this application.

[0036] Figure 5 This is a schematic diagram illustrating the change in the tilt angle of a support plate according to some embodiments of this application.

[0037] Icon labels:

[0038] 100. Base;

[0039] 200. Support plate;

[0040] 300. Lifting assembly; 310. First adjusting rod; 320. Second adjusting rod; 321. Fixed rod; 322. Moving rod;

[0041] 400. First slider;

[0042] 500, Second slider;

[0043] 600. Driver components;

[0044] 700. Connecting rod;

[0045] 800, bed board;

[0046] 900. Scanning equipment. Detailed Implementation

[0047] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0048] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0053] As mentioned in the background section, the heavy weight and complex structure of the scanning gantry result in high design, manufacturing, and maintenance costs for the tilting mechanism, along with issues such as insufficient reliability and slow response speed. Particularly in mobile medical scenarios such as vehicle-mounted CT scanners, the gantry tilting mechanism is prone to failure due to prolonged vibration and impact, affecting the stability and lifespan of the equipment. Furthermore, different models and types of medical imaging equipment (such as CT, MRI, and ultrasound) have varying requirements for tilting functionality, and traditional gantry-based tilting solutions lack versatility and are difficult to adapt flexibly to various devices, limiting their clinical application scope.

[0054] To address the aforementioned problems, this application provides an examination bed and a CT scanning system. A lifting assembly is installed between the base and the support plate. This lifting assembly includes a first adjusting rod and a second adjusting rod that are intersecting and rotatably connected. The first and second adjusting rods are movably connected to the base and the support plate. By designing at least one of the first and second adjusting rods as a telescopic structure, the tilting operation of the support plate relative to the base is achieved. The examination bed provided by this application has fewer parts and a simpler structure. While flexibly and stably adjusting the height and tilt angle of the support plate, it also reduces costs and assembly complexity, significantly lowering the failure rate.

[0055] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a medical scanning system provided according to some embodiments of this application. Figure 2 This is a schematic diagram of the structure of an examination bed provided according to some embodiments of this application. One embodiment of this application first provides an examination bed that can be applied to a medical scanning system, which includes scanning equipment, such as a CT scanning device, but is not specifically limited thereto. The examination bed may include a base 100, a support plate 200, a bed board 800, and a lifting assembly 300.

[0056] The support plate 200 extends along the axial direction (X direction) of the scanning device 900; the bed plate 800 is slidably supported on the support plate 200; the lifting assembly 300 is disposed between the base 100 and the support plate 200, and the lifting assembly 300 includes a first adjusting rod 310 and a second adjusting rod 320, the first adjusting rod 310 and the second adjusting rod 320 intersecting and rotatably connected, the two ends of the first adjusting rod 310 being movably connected to the support plate 200 and the base 100 respectively, and the two ends of the second adjusting rod 320 being movably connected to the support plate 200 and the base 100 respectively; wherein, the first adjusting rod 310 and / or the second adjusting rod 320 are telescopic structures, and by adjusting at least one of the first adjusting rod 310 and the second adjusting rod 320, the first adjusting rod 310 and the second adjusting rod 320 are of different lengths, the front end and the rear end of the support plate 200 are at different heights respectively, and the bed plate 800 supported by the support plate 200 is tilted relative to the scanning device 900.

[0057] Understandably, the base 100 serves as the fixed base for the entire examination bed, by being fixed to the ground or the equipment frame. Of course, if the lifting assembly 300 is used for the examination bed, casters or similar equipment can be installed under the base 100.

[0058] The support plate 200 is located directly above the base 100 and is typically used to directly support the patient or the movable bed board 800. The support plate 200 is supported by at least two sets of lifting components 300. By adjusting the extension or shortening of the lifting components 300, the height and tilt angle of the support plate 200 can be adjusted. The two sets of lifting components 300 can be spaced apart along the width direction of the support plate 200. In this example, the two sets of lifting components 300 can have the same structure or be slightly different. The cooperation of the two sets of lifting components 300 allows one end of the support plate 200 to be raised or lowered relative to the other end along its length direction; and providing at least two sets of lifting components 300 improves the support stability of the support plate 200.

[0059] Specifically, the lifting assembly 300 includes a first adjusting rod 310 and a second adjusting rod 320. The two rods intersect each other at the middle via a pivot or hinge pin, forming a rotatable connection and constituting an X-shaped structure similar to scissors. The connection method between the first adjusting rod 310, the second adjusting rod 320, and the base 100 and the support plate 200 can be as follows:

[0060] In one method, both ends of the first adjusting rod 310 can be slidably connected to the base 100 and the support plate 200 via sliders, and the same applies to the second adjusting rod 320. In this structure, the connection between the support plate 200 and the base 100 is entirely constrained by four sets of slider guide rails; by controlling the movement of any one of these points, the height of the support plate 200 can be adjusted.

[0061] In the second method, one end of the first adjusting rod 310 is rotatably connected to the support plate 200, and the other end is slidably connected to the base 100 via a slider or the like; one end of the second adjusting rod 320 is rotatably connected to the base 100, and the other end is slidably connected to the support plate 200 via a slider or the like. By controlling the sliding of the first adjusting rod 310 or the second adjusting rod 320, the height of the support plate 200 can be adjusted.

[0062] Of course, this application is not limited to the two methods mentioned above; other combinations are also included within its scope of protection.

[0063] In some embodiments, the examination bed further includes a drive assembly 600, the output end of which is connected to a first adjusting rod 310 or a second adjusting rod 320; the drive assembly 600 is configured to drive at least one end of the first adjusting rod 310 or the second adjusting rod 320 to move horizontally to adjust the included angle between the first adjusting rod 310 and the second adjusting rod 320 so that the support plate 200 moves away from or closer to the base 100.

[0064] Specifically, in this embodiment, the output end of the drive component 600 is used to push the slider connected to the first adjusting rod 310 or the slider connected to the second adjusting rod 320, so that the end of the first adjusting rod 310 moves relative to the length direction of the support plate 200, thereby driving the end of the second adjusting rod 320 to slide relative to each other, thereby raising or lowering the support plate 200.

[0065] It should be noted that the drive component 600 in this example is not limited to electric, but can also be pneumatic or hydraulically driven, and the control of the drive component 600 can adopt closed-loop control, for example, by receiving position feedback signals to achieve precise adjustment.

[0066] In this embodiment, the first adjusting rod 310 and the second adjusting rod 320, or the first adjusting rod 310 and the second adjusting rod 320, are designed as a telescopic structure. This structure can be composed of an inner tube and an outer tube sleeved together. The inner tube can slide axially inside the outer tube and its relative position and length can be fixed by a retracting screw, a hydraulic lock, or a built-in linear drive mechanism.

[0067] Specifically, the adjustment of the deflection angle of the support plate 200 relative to the base 100 can be described using the structure of Method 2 described above. Specifically, the upper end of the first adjusting rod 310 is hinged to the support plate 200 through the first hinge point (point A) (which also corresponds to the front end of the support plate 200), and the other end is point C, which can slide relative to the base 100; the lower end of the second adjusting rod 320 is hinged to the base 100 through the second hinge point (point D), and the other end is point B, which can slide relative to the support plate 200 (which also corresponds to the rear end of the support plate 200), and the intersection of the two adjusting rods is point E.

[0068] The initial state of the support plate 200 is horizontal. When it is necessary to raise one end of the support plate 200, the second adjusting rod 320 is a telescopic structure. After receiving an external command, the second adjusting rod 320 starts to work and extends. During this process, the positions of points D, E, and C remain relatively stationary, and the position of point A also remains relatively stationary. During the extension of the second telescopic rod at point B, the slider moves away from point A and moves away from the base 100. That is, point B rotates counterclockwise with point A as the origin, thereby raising the right side of the support plate 200 and making the support plate 200 tilted.

[0069] It should be noted that, in order to ensure the stability of the support plate 200 relative to the base 100, at least two sets of lifting components 300 can be set between the base 100 and the support plate 200, but there are no specific restrictions.

[0070] In summary, the inspection bed provided in this application embodiment, by setting a lifting assembly 300 between the base 100 and the support plate 200, and the lifting assembly 300 including a first adjusting rod 310 and a second adjusting rod 320 that are intersecting and rotatably connected, allows the first adjusting rod 310 and the second adjusting rod 320 to be movably connected to the base 100 and the support plate 200. Combined with the setting of the drive assembly 600, the height adjustment of the support plate 200 relative to the base 100 can be realized. Furthermore, in this embodiment, at least one of the first adjusting rod 310 and the second adjusting rod 320 is designed as a telescopic structure to realize the tilting operation of the support plate 200 relative to the base 100. The inspection bed provided in this application has fewer parts and a simpler structure. While flexibly and stably adjusting the height and tilt angle of the support plate 200, it can also reduce costs and assembly complexity, and greatly reduce the failure rate.

[0071] Below, we will combine the appendix Figure 1 - Appendix Figure 5 The specific structure of the examination bed provided in the embodiments of this application will be described in detail.

[0072] like Figure 2 As shown, in some embodiments, the second adjusting rod 320 is a telescopic structure. The second adjusting rod 320 includes a fixed rod 321 and a movable rod 322 connected to each other. One end of the fixed rod 321 is rotatably connected to the base 100. The end of the movable rod 322 away from the fixed rod 321 is configured to slide relative to the bearing plate 200. The fixed rod 321 and the first adjusting rod 310 intersect each other and are rotatably connected.

[0073] Specifically, the fixed rod 321 can be a hollow sleeve, and the movable rod 322 can be a solid rod or another type of sleeve fitted inside the fixed rod 321, allowing them to slide relative to each other axially. The bottom end of the fixed rod 321 (the end furthest from the intersection point) is rotatably connected to the base 100 via a second hinge point (point D). The corresponding hinge point on the base 100 can be a hinge seat with bearings to ensure smooth rotation and withstand a large torque. Of course, the connection between the fixed rod 321 and the movable rod 322 can also be a sliding connection; no specific restrictions are placed here.

[0074] The top end of the movable rod 322 (i.e., the end furthest from the fixed rod 321) is slidably connected to a guide rail on the lower surface of the support plate 200 via a slider. This end of the movable rod 322 and the slider can be connected by a ball joint or a pivot joint to compensate for minor wobble during movement. The fixed rod 321 and the first adjusting rod 310 are rotatably connected at the middle (point E) via a pivot or hinge pin.

[0075] When the tilt angle of the support plate 200 needs to be adjusted, the retractable second adjusting rod 320 starts to work. If it is necessary to raise one end of the support plate 200, the moving rod 322 extends outward relative to the fixed rod 321 by receiving a command from the control system. Since point D of the fixed rod 321 is hinged to the base 100 and its position is fixed, the extension of the moving rod 322 will push the slider at its top to slide on the guide rail. The movement of the slider changes the position of point B relative to point A (the hinge point between the first adjusting rod 310 and the support plate 200). Under the coupled motion of the entire scissor linkage mechanism, the support plate 200 will deflect counterclockwise (or clockwise) around point A as the rotation center, thereby achieving precise tilt angle adjustment.

[0076] In one example, the second adjusting rod 320 can be a hydraulic, electric, or pneumatic telescopic structure. For instance, a miniature electric actuator (consisting of a motor and a lead screw) can be integrated into the fixed rod 321. The actuator's housing is connected to the fixed rod 321, and its push head is connected to the moving rod 322. The extension and retraction of the moving rod 322 can be precisely controlled by controlling the forward and reverse rotation of the motor. Alternatively, the fixed rod 321 can also function as a hydraulic cylinder, and the moving rod 322 as a piston rod. An external hydraulic pump station and control valve assembly can control the inflow and outflow of liquid, driving the piston rod to extend and retract. This example does not limit the specific telescopic structure of the second adjusting rod 320; it can also be a linear motor, gear rack, ball screw, or other similar structure.

[0077] In this embodiment, by designing the second adjusting rod 320 as a telescopic structure, the tilt adjustment function is directly integrated into the connecting rod of the lifting assembly 300, thereby achieving decoupled control of height and tilt. The tilt adjustment does not require an additional, independent tilting mechanism, which greatly simplifies the overall mechanical structure and reduces manufacturing costs and failure rate.

[0078] like Figure 2 As shown, in some embodiments, the examination bed further includes a first slider 400 and a second slider 500; one end of the first adjusting rod 310 is slidably connected to the base 100 via the first slider 400, and the other end of the first adjusting rod 310 is rotatably connected to the support plate 200; one end of the second adjusting rod 320 is slidably connected to the support plate 200 via the second slider 500, and the other end of the second adjusting rod 320 is rotatably connected to the base 100.

[0079] Specifically, the lower end of the first adjusting rod 310 is slidably connected to the guide rail on the base 100 via the first slider 400, and the upper end of the first adjusting rod 310 is hinged to the support plate 200 via the first hinge point (point A). The upper end of the second adjusting rod 320 is slidably connected to the guide rail on the support plate 200 via the second slider 500, and the lower end of the second adjusting rod 320 is hinged to the base 100 via the second hinge point (point D). The first adjusting rod 310 and the second adjusting rod 320 are cross-hinged at the middle (point E).

[0080] Specifically, the working process may include the movement of the first slider 400 driving the lower end of the first adjusting rod 310 to move, forcing the entire scissor linkage mechanism to deform. The movement of the first adjusting rod 310 is coupled to the second adjusting rod 320 through the central intersection point (point E). The upper end of the second adjusting rod 320 slides on the guide rail of the support plate 200 through the second slider 500, thereby converting the motion into the lifting and lowering of the support plate 200.

[0081] In this embodiment, the planar motion of the connecting rod is converted into linear motion through the cooperation of the first slider 400, the second slider 500, and the guide rail. This ensures that the support plate 200 moves smoothly and without jamming during lifting and tilting, and that its motion trajectory is controllable. Furthermore, when the examination bed provided in this embodiment is used in CT scans, it can be tilted to adapt to the scanning angle of the CT examination equipment without the need for a complex frame. Moreover, this structure has reasonable stress distribution, strong load-bearing capacity, and rapid response, significantly improving the stability and reliability of the equipment. Additionally, the tilt angle can be quickly adjusted during clinical use to accommodate different patient positions.

[0082] In some embodiments, the first adjusting rod 310 can also be used as an adjustable structure. When the support plate 200 needs to tilt forward (i.e., left lower than right), the second adjusting rod 320 can be extended and the first adjusting rod 310 shortened, thereby quickly achieving the tilting of the support plate 200. In this state, the angle θ between the line EA and the plane containing the support plate 200 gradually increases, such as... Figure 3 As shown.

[0083] When the support plate 200 needs to tilt backward (i.e., left higher than right), the second adjusting rod 320 can be shortened and the first adjusting rod 310 extended, thereby quickly achieving the tilting of the support plate 200. In this state, the angle θ between the line EA and the plane containing the support plate 200 gradually decreases. Figure 4 As shown.

[0084] The change in the angle θ mentioned above can be derived using the following formula, such as... Figure 5 As shown, taking the forward tilt of the bearing plate 200 as an example, the initial angle between AE and AB is θ. Due to the extension of the second adjusting rod 320, the length of BE extends by... It can be found using the Law of Cosines. :

[0085]

[0086] According to the Law of Sines, we can obtain :

[0087]

[0088] in, For AE and The included angle.

[0089] The final tilt angle of the bearing plate is:

[0090]

[0091] In some embodiments, the examination bed further includes a connecting rod 700, which is threadedly connected to the first slider 400. One end of the connecting rod 700 is connected to the output end of the drive assembly 600. The connecting rod 700 is configured to rotate under the drive of a drive motor, so that the first slider 400 moves relative to the base 100. The drive assembly 600 includes a drive motor.

[0092] Specifically, a threaded hole can be opened on the first slider 400, and the connecting rod 700 is a lead screw that mates with the threaded hole. One end of the connecting rod 700 is directly connected to the output shaft of the drive motor through a coupling and is driven to rotate by the drive motor. Both ends of the connecting rod 700 are supported by bearing seats fixed on the base 100 to ensure that it can rotate freely and the axis is fixed.

[0093] After receiving the control signal, the drive motor begins to rotate, causing the connecting rod 700 (lead screw) to rotate synchronously. Since the first slider 400 engages with the connecting rod 700 through a threaded hole and is constrained by the guide rail, the rotational motion of the connecting rod 700 is converted into linear motion of the first slider 400 along the axis of the connecting rod 700. The movement of the first slider 400 drives the lifting assembly 300, ultimately achieving height adjustment of the support plate 200.

[0094] In some embodiments, one end of the first adjusting rod 310 is hinged to the first slider 400 and the other end is hinged to the support plate 200; one end of the second adjusting rod 320 is hinged to the second slider 500 and the other end is hinged to the base 100.

[0095] For example, the bottom end of the first adjusting rod 310 is hinged to the first slider 400, for example, by a hinge pin. Similarly, the top end of the second adjusting rod 320 is also hinged to the second slider 500. This hinged connection allows for small angular changes between the adjusting rod and the slider, resulting in smoother movement of the entire device and improved service life and stability.

[0096] In some embodiments, the base 100 is provided with a first guide rail on the side facing the support plate 200, and the second slider 500 is embedded in the first guide rail; the support plate 200 is provided with a second guide rail on the side facing the base 100, and the first slider 400 is embedded in the second guide rail; the extension direction of the second guide rail is consistent with that of the first guide rail.

[0097] Specifically, the first guide rail on the base 100 extends in the same direction as the length of the support plate 200. The second guide rail on the lower surface of the support plate 200 also extends in the same direction as the length of the support plate 200 and is parallel to the first guide rail. A first slider 400 is fitted into the first guide rail, and a second slider 500 is fitted into the second guide rail. The first and second guide rails are strip-shaped grooves formed on the corresponding carriers, and the sliders are adaptedly fitted into these grooves. Alternatively, the first and second guide rails can also be strip-shaped protrusions, with the sliders having grooves that can adaptably engage with the protrusions. Of course, the structural form of the guide rails and sliders forming a sliding pair is not specifically limited here. The combination of guide rails and sliders improves the smoothness of the movement of the support plate 200.

[0098] In some embodiments, a limiting block is provided at the end of the first guide rail. Exemplarily, the limiting block can be a hard limiting block or a stop that triggers a limit switch. The setting of the limiting block constitutes a safety protection to prevent the slider from sliding off the guide rail when the drive assembly 600 malfunctions.

[0099] In some embodiments, the examination bed further includes a controller that is communicatively connected to the drive assembly 600 and the second adjustment lever 320. The controller is configured to receive adjustment signals and send them to at least one of the drive assembly 600 and the second adjustment lever 320.

[0100] Specifically, the controller communicates with the drive assembly 600 (drive motor) and the built-in drive mechanism (e.g., the motor of an electric push rod) of the second adjusting rod 320 via a communication line or wireless module. The controller is configured to receive adjustment signals (such as target height and target tilt angle) from a host computer or operation panel. According to a preset algorithm, the controller decomposes the overall command into displacement commands for the drive motor and extension / retraction commands for the second adjusting rod 320, and sends them to the corresponding actuators to control synchronous or sequential actions.

[0101] This embodiment achieves integrated, digital, and intelligent control of height and tilt angle. The operator only needs to input the target parameters to automatically complete complex adjustments, simplifying the operation process and improving the efficiency and accuracy of the placement.

[0102] In some embodiments, the examination bed further includes an angle sensor disposed on the support plate 200 and communicatively connected to the controller.

[0103] Specifically, the angle sensor can be a tilt compass or a MEMS sensor, mounted on the support plate 200. This angle sensor is communicatively connected to the controller, providing real-time feedback of the actual tilt angle of the support plate 200 to the controller. The controller receives the target angle command and reads the feedback value from the angle sensor. By comparing the target value with the actual value, it calculates the error. Then, it generates a correction command based on the error value and sends it to the drive mechanism of the second adjusting rod 320 until the actual angle matches the target angle, thus facilitating the formation of a closed-loop negative feedback control system. This embodiment, by introducing an angle sensor and closed-loop control, eliminates angle deviations caused by mechanical errors, elastic deformation, or slippage, achieving precise tilt angle control.

[0104] Based on the same concept, this application also provides a CT scanning system, see reference. Figure 1The CT scanning system may include a CT scanning device and an examination bed; the examination bed includes a bed board, a base 100 and a lifting assembly, the lifting assembly being disposed between the base 100 and the bed board, the lifting assembly including a first adjusting rod 310 and a second adjusting rod 320, the first adjusting rod 310 and the second adjusting rod 320 being intersecting and rotatably connected; wherein, the first adjusting rod 310 and / or the second adjusting rod 320 are telescopic structures, the examination bed being able to tilt relative to the CT scanning device, the tilting of the examination bed being achieved by adjusting at least one of the first adjusting rod 310 and the second adjusting rod 320, such that the first adjusting rod 310 and the second adjusting rod 320 have different lengths, so that the bed board deflects and / or moves relative to the base 100.

[0105] The lifting assembly in this embodiment can be understood with reference to the above embodiments, and will not be repeated here. The bed board can be directly set on the upper end of the lifting assembly or on the support plate; there is no limitation here. In CT scanning, the examination bed can achieve tilting to adapt to the scanning angle of the CT examination equipment without the need for a complex frame. Moreover, this structure has reasonable stress distribution, strong load-bearing capacity, and rapid response, which can significantly improve the stability and reliability of the equipment. Furthermore, this structure can quickly adjust the tilt angle during clinical use to adapt to different patient positions.

[0106] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An examination bed used in a medical scanning system, the medical scanning system comprising a scanning device (900), characterized in that, The examination bed includes: Base (100); A support plate (200) extends along the axial direction of the scanning device (900); The bed board (800) is slidably supported on the support plate (200). A lifting assembly (300) is disposed between the base (100) and the support plate (200). The lifting assembly (300) includes a first adjusting rod (310) and a second adjusting rod (320). The first adjusting rod (310) and the second adjusting rod (320) are intersected and rotatably connected. The two ends of the first adjusting rod (310) are movably connected to the support plate (200) and the base (100) respectively. The two ends of the second adjusting rod (320) are movably connected to the support plate (200) and the base (100) respectively. The first adjusting rod (310) and / or the second adjusting rod (320) are telescopic structures. By adjusting at least one of the first adjusting rod (310) and the second adjusting rod (320), the first adjusting rod (310) and the second adjusting rod (320) have different lengths, the front end and the rear end of the support plate (200) are at different heights, and the bed board (800) supported by the support plate (200) is tilted relative to the scanning device (900).

2. The examination bed according to claim 1, characterized in that, The second adjusting rod (320) is the telescopic structure. The second adjusting rod (320) includes a fixed rod (321) and a movable rod (322) connected to each other. One end of the fixed rod (321) is rotatably connected to the base (100). The end of the movable rod (322) away from the fixed rod (321) is configured to slide relative to the support plate (200). The fixed rod (321) and the first adjusting rod (310) are intersecting and rotatably connected; And / or, the second adjusting rod (320) is one of a hydraulic telescopic structure, an electric telescopic structure, or a pneumatic telescopic structure.

3. The examination bed according to claim 1 or 2, characterized in that, The examination bed also includes a first slider (400) and a second slider (500); One end of the first adjusting rod (310) is slidably connected to the base (100) through the first slider (400), and the other end of the first adjusting rod (310) is rotatably connected to the support plate (200); One end of the second adjusting rod (320) is slidably connected to the bearing plate (200) via the second slider (500), and the other end of the second adjusting rod (320) is rotatably connected to the base (100).

4. The examination bed according to claim 3, characterized in that, The examination bed further includes a drive assembly (600), the output end of which is connected to the first adjusting rod (310) or the second adjusting rod (320); the drive assembly (600) is configured to drive at least one end of the first adjusting rod (310) or the second adjusting rod (320) to move horizontally to adjust the included angle between the first adjusting rod (310) and the second adjusting rod (320) so that the support plate (200) moves away from or closer to the base (100).

5. The examination bed according to claim 4, characterized in that, The examination bed also includes a connecting rod (700) threadedly connected to the first slider (400), one end of the connecting rod (700) being connected to the output end of the drive assembly (600), and the connecting rod (700) being configured to rotate under the drive of a drive motor so that the first slider (400) moves relative to the base (100). The drive assembly (600) includes a drive motor.

6. The examination bed according to claim 4, characterized in that, One end of the first adjusting rod (310) is hinged to the first slider (400), and the other end is hinged to the bearing plate (200); One end of the second adjusting rod (320) is hinged to the second slider (500), and the other end is hinged to the base (100).

7. The examination bed according to claim 6, characterized in that, The base (100) is provided with a first guide rail on the side facing the support plate (200), and the second slider (500) is embedded in the first guide rail; The support plate (200) is provided with a second guide rail on the side facing the base (100), and the first slider (400) is embedded in the second guide rail; The second guide rail extends in the same direction as the first guide rail.

8. The examination bed according to claim 7, characterized in that, The end of the first guide rail is provided with a limiting block.

9. The examination bed according to any one of claims 4-8, characterized in that, The examination bed also includes a controller, which is communicatively connected to the drive assembly (600) and the second adjusting rod (320). The controller is configured to receive an adjustment signal and send it to at least one of the drive assembly (600) and the second adjusting rod (320). And / or, the examination bed further includes an angle sensor disposed on the support plate (200), the angle sensor being communicatively connected to the controller.

10. A CT scanning system, characterized in that, Includes CT scanning equipment and examination bed; The examination bed includes a bed board, a base (100), and a lifting assembly. The lifting assembly is disposed between the base (100) and the bed board. The lifting assembly includes a first adjusting rod (310) and a second adjusting rod (320). The first adjusting rod (310) and the second adjusting rod (320) are intersecting and rotatably connected. Wherein, the first adjusting rod (310) and / or the second adjusting rod (320) are telescopic structures; The examination bed is tiltable relative to the CT scanning device. The tilting of the examination bed is achieved by adjusting at least one of the first adjusting rod (310) and the second adjusting rod (320) such that the first adjusting rod (310) and the second adjusting rod (320) have different lengths, so that the bed board (800) deflects and / or moves relative to the base (100).

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