Carrier lifting mechanism and medical instrument

Abstract

The utility model relates to the technical field of medical instruments, in particular to a carrying table lifting mechanism and a medical instrument, the carrying table lifting mechanism comprises a base, a carrying table and a lifting mechanism, the carrying table is connected with the base through the lifting mechanism, and the lifting mechanism is configured to be capable of driving the carrying table to move up and down relative to the base. The carrying platform can generate horizontal displacement along a first direction in the process of moving up and down relative to the base; according to the platform deck lifting mechanism, compensation of the horizontal distance can be achieved while lifting is conducted, so that the time for the platform deck to reach the preset position cannot be affected even if the initial position of the platform deck lifting mechanism is far, and the working efficiency and the overall working stroke are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a platform lifting mechanism and a medical device. Background Technology

[0002] In modern medicine, especially in imaging diagnostics, patient comfort and examination efficiency are paramount. Traditional medical equipment, such as CT (Computed Tomography) machines, is equipped with a liftable medical bed. The main function of this liftable medical bed is to safely and smoothly transport the patient into the CT scanner for scanning.

[0003] Existing lifting medical beds are generally equipped with two independent drive systems: one for vertically raising and lowering the platform of the lifting medical bed, and the other for horizontally moving the bed board on the platform towards the computed tomography (CT) scanner. However, because the initial horizontal position of the lifting medical bed is relatively close to the CT scanner, it will cause inconvenience for the maintenance of the CT scanner, such as removing the end cap of the frame and replacing the X-ray tube. On the other hand, increasing the initial distance between the lifting medical bed and the CT scanner will not only shorten the scanning stroke of the CT scanner on the lifting medical bed, affecting clinical application, but also prolong the examination time and reduce the overall examination efficiency. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a platform lifting mechanism and a medical device. The platform lifting mechanism can achieve synchronous compensation of horizontal distance while lifting, so that even if the initial position of the platform is far away, it will not affect the time for the platform to reach the predetermined target position, thus ensuring work efficiency and overall work stroke.

[0005] To achieve the above and other related objectives, this utility model provides a platform lifting mechanism, including a base, a platform, and a lifting mechanism. The platform is connected to the base through the lifting mechanism. The lifting mechanism is configured to drive the platform to move up and down relative to the base, and the platform can generate a horizontal displacement along a first direction during the up and down movement relative to the base.

[0006] In one embodiment of the present invention, the lifting mechanism includes a first link, a driving mechanism, and a holding mechanism. The first link is hinged to the base via a first hinge axis, and the first link is hinged to the platform via a second hinge axis. The first hinge axis and the second hinge axis are perpendicular to the first direction. The driving mechanism is used to drive the first link to swing, and the holding mechanism is configured to keep the platform in a horizontal state.

[0007] In one embodiment of this utility model, the driving mechanism includes a second connecting rod, a first slider, and a linear driving element. The first slider is movably connected to the base, and its direction of movement is perpendicular to the first hinge axis and the second hinge axis. The second connecting rod is hinged to the first slider via a third hinge axis, and the second connecting rod is hinged to the first connecting rod via a fourth hinge axis. The third hinge axis and the fourth hinge axis are perpendicular to the first direction. The linear driving element is used to drive the first slider to slide.

[0008] In one embodiment of the present invention, the holding mechanism includes a second slider, which is movably connected to the platform in a horizontal direction, and the second connecting rod is hinged to the second slider via a fifth hinge axis; the fifth hinge axis is perpendicular to the first direction.

[0009] In one embodiment of this utility model, the first hinge axis and the third hinge axis are located in the same horizontal plane, the second hinge axis and the fifth hinge axis are located in the same horizontal plane, the distance between the first hinge axis and the fourth hinge axis is equal to the distance between the third hinge axis and the fourth hinge axis, and the distance between the fourth hinge axis and the second hinge axis is equal to the distance between the fourth hinge axis and the fifth hinge axis.

[0010] In one embodiment of the present invention, a first guide rail is provided on the base along a first direction, and the first slider is slidably disposed on the first guide rail; a second guide rail is provided on the bottom of the platform along a first direction, and the second slider is slidably disposed on the second guide rail.

[0011] In one embodiment of this utility model, the linear drive element includes a ball screw arranged along a first direction and a motor that drives the ball screw to rotate; the first slider is slidably connected to the base along the first direction; the ball screw passes through the first slider and is drivenly connected to the first slider.

[0012] In one embodiment of this utility model, the linear drive element is disposed on the base and the free end of the linear drive element is connected to the first slider; the linear drive element is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod disposed along the first direction.

[0013] In one embodiment of this utility model, the holding mechanism includes a third link arranged parallel to the first link. One end of the third link is hinged to the base via an eighth hinge axis, and the other end of the third link is hinged to the platform via a ninth hinge axis. The distance between the eighth and ninth hinge axes is equal to the distance between the first and second hinge axes. One end of the driving mechanism is hinged to the base via a sixth hinge axis, and the other end is hinged to the first link via a seventh hinge axis.

[0014] To achieve the above and other related objectives, this utility model provides a medical device, including the aforementioned platform lifting mechanism and a testing device, wherein the testing device is disposed on one side of the platform along the first direction;

[0015] The platform lifting mechanism is configured such that when the lifting mechanism drives the platform to rise, it can cause the platform to move horizontally toward the detection device.

[0016] In one embodiment of the present invention, a bed board and a driving element for driving the bed board to move along a first direction are slidably disposed on the platform.

[0017] In one embodiment of this utility model, the detection device is a computed tomography (CT) scanner.

[0018] The technical advantages of this utility model are as follows: The platform lifting mechanism provided by this utility model can simultaneously compensate for the horizontal distance while driving the platform to rise through the lifting mechanism. Therefore, even if the initial position of the platform is far from the inspection equipment, it will not affect the time it takes for the platform to reach the predetermined target position, thus ensuring work efficiency and improving the efficiency of medical equipment in detecting patients. At the same time, it will not shorten the scanning stroke of the inspection equipment on the lifting medical bed and facilitates the maintenance of the inspection equipment. Attached Figure Description

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

[0020] Figure 1 This is a schematic diagram of the platform lifting mechanism arranged next to the testing equipment in one embodiment of the present invention.

[0021] Figure 2 This is a structural diagram of the platform lifting mechanism in its initial position according to an embodiment of the present invention;

[0022] Figure 3 This is a structural diagram of the platform lifting mechanism in one embodiment of the present invention when it is in a predetermined target position;

[0023] Figure 4 This is a schematic diagram of the platform lifting mechanism in another embodiment of the present invention;

[0024] Component labeling: Base 10, First slide rail 11, Platform 20, Second slide rail 21, Bed board 40, Lifting mechanism 30, First connecting rod 31, First hinge shaft 311, Second hinge shaft 312, First support 313, Second support 314, Drive mechanism 32, Second connecting rod 321, Third hinge shaft 3211, Fourth hinge shaft 3212, First slider 322, Linear drive element 323, Holding mechanism 33, Second slider 331, Fifth hinge shaft 3213, Ball screw 3231, Motor 3232, Linear telescopic drive unit 324, Sixth hinge shaft 3241, Seventh hinge shaft 3242, Third connecting rod 34, Eighth hinge shaft 341, Ninth hinge shaft 342, Testing equipment 50. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0026] Please see Figures 1 to 4 It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0027] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise stated in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, devices, and materials similar to or equivalent to those described, used, or made of materials in the embodiments of this invention.

[0028] The platform lifting mechanism provided by this utility model can be applied to the field of medical technology or other technical fields that meet the usage requirements. When applied to a lifting medical bed for medical equipment, the medical equipment can be a magnetic resonance imaging device, a positron emission tomography (PET) imaging device, or a computed tomography (CT) scanning device.

[0029] Relying on traditional independent horizontal and vertical motion control structures inevitably brings some problems. For example, the initial position of the lifting medical bed is too close to the testing device 50, resulting in a small space area at the end of the lifting medical bed near the testing device 50, which will cause inconvenience for the maintenance of the testing device 50, such as removing the frame end cover and replacing the X-ray tube. On the other hand, increasing the initial distance between the lifting medical bed and the testing device 50 will not only shorten the scanning stroke of the testing device 50 on the lifting medical bed, affecting clinical application, but also prolong the examination time and reduce the overall examination efficiency. Therefore, this invention provides a platform lifting mechanism that can be applied to the lifting medical bed. When the lifting medical bed is set at a predetermined distance from the testing device 50, using the platform lifting mechanism provided in this invention will not significantly shorten the time for the lifting medical bed to reach the predetermined target position from the initial position, resulting in high work efficiency.

[0030] like Figure 1 As shown, in this case, the X direction is the first direction, and the Y direction is the height direction or the vertical direction. When the platform lifting mechanism of this case is applied to a lifting medical bed in the medical field, the lifting medical bed generally includes a platform lifting mechanism and a bed board 40 mounted on the platform lifting mechanism. The platform 20 is defined to have an initial position and a predetermined target position during operation. The initial position is the position before the patient boards the platform 20, that is, the position before the platform 20 begins operation. Figure 2 As shown; the predetermined target position is where the platform 20 transports the patient to the testing position near the testing device 50, such as... Figure 3As shown. The lifting medical bed includes two strokes: a movement stroke A and a scanning stroke B. Movement stroke A is the horizontal distance between the lifting medical bed and the detection device 50 at its initial position, i.e., the predetermined distance in the horizontal direction, mainly referring to the stroke of the platform 20. Scanning stroke B occurs after the lifting medical bed reaches the predetermined target position. At this point, the platform lifting mechanism does not move horizontally, but the bed board 40 on the platform lifting mechanism continues to move into the detection device 50. Scanning stroke B is the stroke during which the patient's body is scanned. Assuming the total horizontal stroke of the lifting medical bed is C, then C = A + B. If the movement stroke A increases, the scanning stroke B will decrease, thus reducing the ability of the detection device 50 to scan only a portion of the patient's body, which would otherwise allow for a full-body scan of the patient on the lifting medical bed, affecting clinical application.

[0031] Please see Figure 1-3 This utility model provides a platform lifting mechanism, including a base 10, a platform 20 and a lifting mechanism 30; the platform 20 is connected to the base 10 through the lifting mechanism 30, and the lifting mechanism 30 is configured to drive the platform 20 to move up and down relative to the base 10, and the platform 20 can generate horizontal displacement along a first direction during the up and down movement relative to the base 10.

[0032] It should be noted that the base 10 is generally placed on the ground and can be fixed to the ground with fasteners. When the stability and support of the base 10 are good enough, for example, if the base area of ​​the base 10 is large enough, the base 10 may not need to be fixed to the ground. The platform 20 is used to carry objects. In the medical field, the platform 20 can be used in different ways depending on the application environment. In some application environments, the platform 20 can directly carry the patient, while in other application environments, other objects can be placed on the platform 20 and carried by the platform 20. For example, in the field of medical imaging diagnosis, the lifting medical bed used when scanning patients with a computed tomography (CT) scanner generally requires a bed board 40 to be laid on the platform 20 to consider manufacturing costs. The platform 20 moves the bed board 40 to a predetermined target position close to the CT scanner, and then moves the bed board 40 to allow the patient on the bed board 40 to enter the CT scanner for a physical examination scan. Existing lifting devices generally only have a single lifting function and do not have a horizontal movement function. However, the platform lifting mechanism in this case can drive the platform 20 to move up and down relative to the base 10, and the platform 20 can generate horizontal displacement along the first direction during the up and down movement relative to the base 10. Therefore, the platform lifting mechanism in this case has both lifting and horizontal movement functions, and the lifting and horizontal movement functions work simultaneously, resulting in high work efficiency and avoiding the time-consuming process of lifting and horizontal movement when they are performed sequentially, which would affect work efficiency.

[0033] In this case, when the stage lifting mechanism is applied to a CT (Computed Tomography) device including the detection device 50 and the lifting medical bed, the stage 20 stops moving after reaching the predetermined target position. By driving the bed board 40 on the stage 20 to move horizontally, the patient can be transported through the detection device 50 for scanning. Therefore, the initial position of the platform 20 of the lifting medical bed can be designed such that, in the vertical direction, the initial position is set relatively low to facilitate patient access to and from the bed; and in the horizontal direction, the initial position is at a predetermined distance from the detection device 50 to improve the convenience of maintenance of the detection device 50, such as removing the end cover of the frame or replacing the X-ray tube, without shortening the scanning stroke of the detection device 50 on the lifting medical bed, thus ensuring clinical application. When using the platform lifting mechanism of this invention, the lifting mechanism 30 can drive the platform 20 to rise to the predetermined height, and the platform 20 can also move horizontally along the first direction under the action of the lifting mechanism 30 to approach the detection device 50, thereby reaching the predetermined target position. The platform 20's horizontal displacement along the first direction while moving up and down allows the patient to be moved to the predetermined target position more quickly, reducing waiting time and improving overall examination efficiency. Furthermore, integrating the lifting and horizontal movement functions of the platform lifting mechanism improves its structural integration and working efficiency.

[0034] Further optional information can be found in [link to relevant documentation]. Figure 1-3 The lifting mechanism 30 includes a first connecting rod 31, a driving mechanism 32, and a holding mechanism 33. The first connecting rod 31 is hinged to the base 10 via a first hinge shaft 311, and the first connecting rod 31 is hinged to the platform 20 via a second hinge shaft 312. The first hinge shaft 311 and the second hinge shaft 312 are perpendicular to the first direction. The driving mechanism 32 is used to drive the first connecting rod 31 to swing, and the holding mechanism 33 is configured to keep the platform 20 in a horizontal state.

[0035] It should be noted that a first support 313 is provided on the base 10, and a second support 314 is provided at the lower part of the platform 20. The first connecting rod 31 is hinged to the first support 313 via a first hinge shaft 311, and the first connecting rod 31 is hinged to the second support 314 via a second hinge shaft 312. During operation, initially, the platform 20 is in a low position. At this time, the drive mechanism 32 drives the first connecting rod 31 to swing, causing the platform 20 to gradually rise. The holding mechanism 33 is used to keep the platform 20 in a horizontal state, thus enabling the platform 20 to rise and fall smoothly. Since one end of the first connecting rod 31 is hinged to the base 10 and the other end is hinged to the platform 20, the first connecting rod 31, when swinging, can cause the platform 20 to produce vertical and horizontal displacements, satisfying the requirement of simultaneous vertical and horizontal movement, thereby improving the efficiency of the platform 20 moving to the predetermined target position.

[0036] Further optional information can be found in [link to relevant documentation]. Figure 1-3 The driving mechanism 32 includes a second connecting rod 321, a first slider 322, and a linear driving element 323. The first slider 322 is movably connected to the base 10, and its direction of movement is perpendicular to the first hinge axis 311 and the second hinge axis 312. The second connecting rod 321 is hinged to the first slider 322 via a third hinge axis 3211, and the second connecting rod 321 is hinged to the first connecting rod 31 via a fourth hinge axis 3212. The third hinge axis 3211 and the fourth hinge axis 3212 are perpendicular to the first direction. The linear driving element 323 is used to drive the first slider 322 to slide.

[0037] It should be noted that when the ground is horizontal, the first hinge axis 311 and the third hinge axis 3211 are located on the same horizontal plane and perpendicular to the first direction; the movement direction of the first slider 322 is perpendicular to the first hinge axis 311 and the second hinge axis 312. For example, the first slider 322 is slidably disposed on the base 10, and the base 10 is provided with a first slide rail 11 along the first direction. The first slide rail 11 can be a groove or a protrusion; the first slider 322 is slidably disposed on the first slide rail 11 to keep the movement direction of the first slider 322 perpendicular to the first hinge axis 311 and the second hinge axis 312. During operation, when the linear drive element 323 drives the first slider 322 to slide along the first direction, the first slider 322 sliding along the first direction will drive the first connecting rod 31 to rotate around the first hinge axis 311 through the second connecting rod 321, thereby realizing the swing drive of the first connecting rod 31, and thus realizing the simultaneous drive of the platform 20 in the height direction and the horizontal direction. Meanwhile, in this case, only one linear drive element 323 is needed to drive the stage 20 simultaneously in the height and horizontal directions, which is simple in structure and low in manufacturing cost.

[0038] Further optional information can be found in [link to relevant documentation]. Figure 1-3 The holding mechanism 33 includes a second slider 331, which is movably connected to the platform 20 in a horizontal direction. The second connecting rod 321 is hinged to the second slider 331 through a fifth hinge shaft 3213; the fifth hinge shaft 3213 is perpendicular to the first direction.

[0039] It should be noted that when the ground is horizontal, the fifth hinge axis 3213 and the second hinge axis 312 are located on the same horizontal plane and perpendicular to the first direction; the second slider 331 is movably connected to the platform 20 in the horizontal direction. For example, the platform 20 has a second slide rail 21 at its bottom, and the second slider 331 is slidably disposed on the second slide rail 21; the second slide rail 21 can be a groove or a protrusion; the second connecting rod 321 extends to the second slider 331 and is hinged to the second slider 331 through the fifth hinge axis 3213, and because one end of the second connecting rod 321 passes through... The second slider 331 is slidably connected to the platform 20, and the other end of the second connecting rod 321 is slidably connected to the base 10 through the first slider 322, so that the second connecting rod 321 and the first connecting rod 31 form a scissor mechanism, which can keep the platform 20 in a horizontal state. It should be understood that at least one set of the scissor mechanism can be provided, or two or more sets can be provided in parallel, as long as the balance of the platform 20 can be guaranteed. For example, when one set of the scissor mechanism is provided, the first connecting rod 31 and the second connecting rod 321 are both plate-shaped structures, which can guarantee the balance of the platform 20.

[0040] Further optional information can be found in [link to relevant documentation]. Figure 1-3 The first hinge shaft 311 and the third hinge shaft 3211 are located in the same horizontal plane, and the second hinge shaft 312 and the fifth hinge shaft 3213 are located in the same horizontal plane. The distance between the first hinge shaft 311 and the fourth hinge shaft 3212 is equal to the distance between the third hinge shaft 3211 and the fourth hinge shaft 3212. The distance between the fourth hinge shaft 3212 and the second hinge shaft 312 is equal to the distance between the fourth hinge shaft 3212 and the fifth hinge shaft 3213. This improves the structural accuracy of the scissor mechanism formed by the second link 321 and the first link 31, which in turn helps to ensure that the platform 20 can always remain in a horizontal state.

[0041] Further optional information can be found in [link to relevant documentation]. Figure 1-3The linear drive element 323 includes a ball screw 3231 arranged along a first direction and a motor 3232 that drives the ball screw 3231 to rotate. The first slider 322 is slidably connected to the base 10 along the first direction. The ball screw 3231 passes through the first slider 322 and is drivenly connected to the first slider 322. The motor 3232 is a servo motor with high rotational accuracy. It should be understood that when the first slider 322 is driven to slide along the first direction by the ball screw 3231, a guide rod parallel to the ball screw 3231 is also included. The guide rod passes through the first slider 322 along the first direction, so that the first slider 322 can be driven with high precision and accuracy, ensuring the accuracy of the platform 20 during lifting and horizontal movement. It should be understood that the linear telescopic drive unit 324 may also have other options. For example, the linear drive element 323 is disposed on the base 10 and the free end of the linear drive element 323 is connected to the first slider 322. The linear drive element 323 is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod arranged along the first direction. It should be further understood that the selection of the electric telescopic rod, hydraulic telescopic rod, or pneumatic telescopic rod should ensure sufficient driving force and driving accuracy.

[0042] As another optional embodiment of this case, which differs from the above embodiment, please refer to Figure 4 The driving mechanism 32 includes a linear telescopic driving unit 324. One end of the linear telescopic driving unit 324 is hinged to the base 10 via a sixth hinge shaft 3241; the other end of the linear telescopic driving unit 324 is hinged to the first connecting rod 31 via a seventh hinge shaft 3242. The linear telescopic driving unit 324 can be an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod. During operation, the first connecting rod 31 can be driven to swing around the first hinge shaft 311 directly by extending and retracting the linear telescopic driving unit 324, thereby achieving synchronous lifting and horizontal movement of the platform 20.

[0043] As another optional embodiment of this case, which differs from the above embodiment, please refer to Figure 4 The holding mechanism 33 includes a third link 34 arranged parallel to the first link 31. One end of the third link 34 is hinged to the base 10 via an eighth hinge shaft 341, and the other end of the third link 34 is hinged to the platform 20 via a ninth hinge shaft 342. The distance between the eighth hinge shaft 341 and the ninth hinge shaft 342 is equal to the distance between the first hinge shaft 311 and the second hinge shaft 312, so that the first link 31, the third link 34, the platform 20, and the base 10 form a parallelogram, thereby ensuring that the platform 20 remains in a horizontal state. The eighth hinge shaft 341 and the ninth hinge shaft 342 are both perpendicular to the first direction.

[0044] Please see Figure 1-3 or Figure 4 The present invention provides a medical device, including the aforementioned platform lifting mechanism and a testing device 50; the testing device 50 is disposed on one side of the platform 20 along the first direction; the platform lifting mechanism is configured such that when the lifting mechanism 30 drives the platform 20 to lift, the platform 20 can be horizontally displaced toward the testing device 50.

[0045] It should be noted that the platform lifting mechanism is located on one side of the detection device 50. When the platform lifting mechanism of this invention is applied to a lifting medical bed, the platform 20 needs to maintain a low height and a predetermined distance from the detection device 50 before the patient lies down on the lifting medical bed and when the patient needs to get off the lifting medical bed. The reason for this setting is that setting the platform 20 at a low height can prevent the patient from falling or other accidental injuries when getting on and off the platform 20, taking into account the patient's possible difficulty in movement or balance problems, which is especially important for elderly patients or patients with mobility difficulties. By pre-adjusting the platform 20 to a low height, medical staff can more easily assist the patient in getting on and off the platform 20. When the platform 20 maintains a certain distance from the detection device 50, it facilitates long-term maintenance of the detection device 50, such as removing the frame end cover and replacing the X-ray tube, without shortening the scanning stroke of the detection device 50 when scanning the patient on the lifting medical bed, ensuring the effectiveness of clinical application, and avoiding or reducing the impact of the detection device 50 on the doctor's work of adjusting or examining the patient. Once the patient is lying on the platform 20 and ready, the platform lifting mechanism will operate. When the lifting mechanism 30 drives the platform 20 to rise, it can cause the platform 20 to move horizontally towards the detection device 50. This horizontal position compensation is achieved when the platform 20 is raised, which can quickly move the patient to the appropriate detection position, reducing the time for medical staff to manually adjust or re-drive the mechanism, thereby shortening the patient's waiting time on the lifting medical bed, making the entire examination process smoother and improving work efficiency.

[0046] Further optional information can be found in [link to relevant documentation]. Figure 1 The platform 20 is slidably provided with a bed board 40 and a driving element that drives the bed board 40 to move toward the detection device 50 in a first direction.

[0047] It should be noted that when the testing device 50 starts testing, the bed board 40 is slid along the first direction on the platform 20 towards the testing device 50 by the drive element, thereby realizing the testing of the patient on the bed board 40 by the testing device 50; the drive element is an electric telescopic rod, hydraulic telescopic rod, pneumatic telescopic rod or ball screw 3231 arranged along the first direction; the bed board 40 is a carbon fiber bed board.

[0048] Optionally, the detection device 50 is a computed tomography (CT) scanner, a medical device that uses X-rays and computer technology to image the interior of the human body. It performs a precise X-ray scan of a specific part of the body, uses a detector to receive the X-ray information passing through that layer, converts this information into digital signals which are then processed by a computer to ultimately generate a cross-sectional image. A CT scanner mainly consists of three parts: a scanning section (including an X-ray tube, detector, and gantry), a computer system, and an image display and storage system. During the scanning process, the X-ray beam scans a layer of a certain thickness in a specific part of the body. The detector receives the X-rays passing through that layer, converts them into electrical signals, which are then converted into digital signals by an analog-to-digital converter, input into the computer for processing, and finally form a CT image.

[0049] The platform lifting mechanism provided by this utility model can simultaneously compensate for horizontal distance while driving the platform 20 to rise through the lifting mechanism 30. Therefore, even if the initial position of the platform 20 is far from the examination equipment 50, it will not affect the time it takes for the platform 20 to reach the predetermined target position, thus ensuring work efficiency and improving the efficiency of medical equipment in examining patients. At the same time, the lifting mechanism 30 only requires one linear drive element 323 for driving, which is simple in structure and low in manufacturing cost. It also facilitates the maintenance of the examination equipment 50 and the end of the lifting medical bed near the examination equipment 50, and ensures the scanning effect in clinical applications.

[0050] In summary, this utility model effectively overcomes some practical problems in the prior art, thus having high utilization value and significance.

[0051] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A platform lifting mechanism, characterized in that, include: Base; Platform; A lifting mechanism is provided, wherein the platform is connected to the base via the lifting mechanism, and the lifting mechanism is configured to drive the platform to move up and down relative to the base, and the platform can generate a horizontal displacement along a first direction during the up and down movement relative to the base. The lifting mechanism includes a first link, a drive mechanism, and a holding mechanism. The first link is hinged to the base via a first hinge axis, and the first link is hinged to the platform via a second hinge axis. The first hinge axis and the second hinge axis are perpendicular to the first direction. The drive mechanism is used to drive the first link to swing, and the holding mechanism is configured to keep the platform in a horizontal state. The driving mechanism includes a second connecting rod, a first slider, and a linear driving element. The first slider is movably connected to the base, and its direction of movement is perpendicular to the first hinge axis and the second hinge axis. The second connecting rod is hinged to the first slider via a third hinge axis, and the second connecting rod is hinged to the first connecting rod via a fourth hinge axis. The third hinge axis and the fourth hinge axis are perpendicular to the first direction. The linear driving element is used to drive the first slider to slide.

2. The platform lifting mechanism according to claim 1, characterized in that, The holding mechanism includes a second slider, which is movably connected to the platform in a horizontal direction, and a second connecting rod is hinged to the second slider via a fifth hinge axis; the fifth hinge axis is perpendicular to the first direction.

3. The platform lifting mechanism according to claim 2, characterized in that, The first hinge axis and the third hinge axis are located in the same horizontal plane, the second hinge axis and the fifth hinge axis are located in the same horizontal plane, the distance between the first hinge axis and the fourth hinge axis is equal to the distance between the third hinge axis and the fourth hinge axis; the distance between the fourth hinge axis and the second hinge axis is equal to the distance between the fourth hinge axis and the fifth hinge axis.

4. The platform lifting mechanism according to claim 2, characterized in that, The base is provided with a first guide rail along a first direction, and the first slider is slidably disposed on the first guide rail; the bottom of the platform is provided with a second guide rail along a first direction, and the second slider is slidably disposed on the second guide rail.

5. The platform lifting mechanism according to claim 1, characterized in that, The linear drive element includes a ball screw arranged along a first direction and a motor that drives the ball screw to rotate. The first slider is slidably connected to the base along the first direction. The ball screw passes through the first slider and is drivenly connected to the first slider.

6. The platform lifting mechanism according to claim 1, characterized in that, The linear drive element is disposed on the base and its free end is connected to the first slider; the linear drive element is an electric telescopic rod, a hydraulic telescopic rod, or a pneumatic telescopic rod arranged along the first direction.

7. The platform lifting mechanism according to claim 1, characterized in that, The holding mechanism includes a third link arranged parallel to the first link. One end of the third link is hinged to the base via an eighth hinge axis, and the other end of the third link is hinged to the platform via a ninth hinge axis. The distance between the eighth and ninth hinge axes is equal to the distance between the first and second hinge axes. One end of the driving mechanism is hinged to the base via a sixth hinge axis, and the other end is hinged to the first link via a seventh hinge axis.

8. A medical device, characterized in that, Including the platform lifting mechanism as described in any one of claims 1-7, and A testing device, wherein the testing device is disposed on one side of the stage along the first direction; The platform lifting mechanism is configured such that when the lifting mechanism drives the platform to rise, it can cause the platform to move horizontally toward the detection device.

Images