Medical imaging equipment

Abstract

The utility model discloses medical imaging equipment, the medical imaging equipment comprises a sky rail and a bearing structure, the sky rail comprises a mounting seat and two first movable parts mounted on the mounting seat, and the two first movable parts are arranged side by side in a first direction and extend in a second direction. In the bearing structure, a rack is arranged between two first movable parts in the first direction, a second movable part is installed on the rack, and a roller assembly is installed on the second movable part and used for being in rolling fit with the first movable parts. According to the embodiment, the span of the sky rail can be adjusted by independently driving the first movable part to reciprocate in the first direction, the width of the bearing structure is adjusted by independently driving the second movable part to reciprocate in the first direction, or the contact state of the roller assembly and the first movable part of the sky rail is actively adjusted by simultaneously driving the first movable part and the second movable part; therefore, the bearing structure is allowed to be assembled at any position between the two first movable parts of the sky rail, and space does not need to be reserved at the end of the sky rail.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more particularly to a medical imaging device. Background Technology

[0002] Digital subtraction angiography (DSA) equipment uses two X-ray images taken before and after contrast agent injection. These images are digitized and input into an image computer. The subtraction, enhancement, and re-imaging processes then produce clear, pure vascular images. Related technologies include suspended DSA equipment and floor-standing DSA equipment. Compared to floor-standing DSA equipment, suspended DSA equipment can achieve translation along a direction parallel to the catheter bed through the mechanical coupling of the supporting structure and the ceiling track, thus providing a more flexible three-dimensional imaging solution.

[0003] However, in suspended DSA equipment, the load-bearing structure is generally moved by assembling it with the ceiling rail via roller assemblies. This often results in the overall width of the load-bearing structure exceeding the span of the ceiling rail. The load-bearing structure must be assembled from one end of the ceiling rail, and at least one side of the ceiling rail needs to reserve installation space equivalent to the length of the load-bearing structure. This not only limits the effective length of the ceiling rail but may also lead to unnecessary waste of medical space. Utility Model Content

[0004] This application provides a medical imaging device that can solve the problem of inconvenient assembly of suspended digital subtraction angiography devices.

[0005] This application provides a medical imaging device, which includes a ceiling track and a support structure. The ceiling track includes a mounting base and two first movable members mounted on the mounting base. The two first movable members are arranged side by side along a first direction and extend along a second direction. The support structure includes a frame, a second movable member, and a roller assembly. The frame is located between the two first movable members in the first direction. The second movable member is mounted on the frame. The roller assembly is mounted on the second movable member and is used to roll with the first movable member to guide the frame to move along the second direction. At least one of the first movable member and the second movable member is configured to reciprocate relative to the frame along the first direction to drive the roller assembly to contact or separate from the first movable member. The second direction is set at an angle to the first direction.

[0006] In some embodiments, the first movable member is movably mounted to the mounting base and the first movable member reciprocates relative to the frame along the first direction; wherein two first movable members are configured to approach each other along the first direction to mount the roller assembly to the first movable member, and two first movable members are configured to move away from each other along the first direction to disengage the roller assembly from the first movable member.

[0007] In some embodiments, the second movable member is movably mounted on the frame, and the second movable member reciprocates relative to the frame along the first direction; wherein the frame includes two first mounting surfaces arranged opposite to each other along the second direction, and the second movable member is movably mounted on the first mounting surface; or, the frame includes two second mounting surfaces arranged opposite to each other along a third direction, and the second movable member is movably mounted on the second mounting surface; wherein the first direction, the second direction, and the third direction are mutually perpendicular.

[0008] In some embodiments, the frame includes a mating portion, and the second movable member includes a sliding portion that slidably engages with the mating portion to allow the second movable member to switch between a first position and a second position along a first direction. In the first position, the roller assembly is fitted onto the first movable member, and in the second position, the roller assembly is disengaged from the first movable member.

[0009] In some embodiments, the sliding part has an adjustment opening that extends along the first direction; the supporting structure further includes a fixing member that partially passes through the adjustment opening and is detachably mounted on the frame, wherein the fixing member abuts against the second movable member to fix the position of the second movable member relative to the frame; along the first direction, at least a portion of the wall surface of the adjustment opening is spaced apart from the fixing member.

[0010] In some embodiments, the medical imaging device further includes a positioning element; the frame includes a first positioning part, and the second movable part includes a second positioning part; at the first position of the second movable part, the first positioning part and the second positioning part are aligned and engaged, and the positioning element abuts against the second positioning part and is limited and engaged with the first positioning part.

[0011] In some embodiments, the first positioning part is disposed on the mating part, and the first positioning part is provided with a first positioning hole; the frame further includes a reinforcing part, the reinforcing part is connected to the mating part corresponding to the first positioning part, the reinforcing part is provided with a second positioning hole, and the positioning member passes through the first positioning hole of the first positioning part and extends into the second positioning hole of the reinforcing part.

[0012] In some embodiments, the frame has a sidewall facing the first movable member and a mounting surface connected to the sidewall; the medical imaging device includes a plurality of second movable members and a plurality of roller assemblies, the plurality of second movable members being disposed along a first direction at the edge region of the mounting surface, and the plurality of roller assemblies being mounted one-to-one with the plurality of second movable members.

[0013] In some embodiments, the second movable member includes: a sliding portion for mounting on the frame; a mounting portion connected to one end of the sliding portion facing the first movable member, the roller assembly being mounted on the mounting portion; and a plurality of reinforcing ribs spaced apart along a third direction, with one end of each reinforcing rib connected to the mounting portion and the other end connected to the sliding portion, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0014] In some embodiments, the roller assembly includes multiple sets of roller groups spaced apart along the second direction, each set of rollers including two sets of rollers spaced apart along a third direction, the two sets of rollers in the same set of rollers being arranged opposite each other along the third direction and used to abut against the two end faces of the first movable member that are arranged opposite each other along the third direction; wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0015] A medical imaging device based on an embodiment of this application achieves active adjustment of the contact state between the roller assembly and the first movable component of the ceiling track by setting at least one of the first movable component of the ceiling track and the second movable component of the support structure to reciprocate relative to the frame along a first direction. The span of the ceiling track can be adjusted by driving the first movable component alone along the first direction, and the width of the support structure can be adjusted by driving the second movable component alone along the first direction. Alternatively, by driving both simultaneously, the support structure can be assembled at any position between the two first movable components of the ceiling track. This allows for easier hoisting and installation of the support structure onto the ceiling track without requiring space to be reserved at the ends of the ceiling track, providing greater flexibility for the layout of medical imaging devices within a medical space. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view schematic diagram of medical imaging equipment related to this technology;

[0018] Figure 2 A top-view schematic diagram of medical imaging equipment related to this technology;

[0019] Figure 3 This is a schematic diagram of the structure of a medical imaging device according to an embodiment of this application;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0021] Figure 5 This is an exploded view of a medical imaging device according to an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the supporting structure in a first position according to an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of the supporting structure at the second position according to an embodiment of this application;

[0024] Figure 8 This is a top view schematic diagram of a load-bearing structure according to an embodiment of this application.

[0025] Figure label:

[0026] 10. Top rail; 11. Mounting base; 110. Slide rail; 12. First moving part; 121. Slider;

[0027] 20. Bearing structure; 21. Frame; 211. Mating part; 21A. First positioning hole; 212. Reinforcing part; 22. Second moving part; 221. Sliding part; 22A. Adjustment opening; 22B. Mounting hole; 222. Mounting part; 223. Reinforcing rib; 23. Roller assembly; 231. Roller group; 24. Fixing part; 25. Positioning part;

[0028] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0030] Digital subtraction angiography (DSA) equipment uses sequential image digital subtraction technology to obtain clear, pure vascular images. Based on installation method, DSA equipment can be divided into floor-standing DSA equipment and suspended DSA equipment. Floor-standing DSA equipment is installed on the ground, and its detection range is limited by its installation location. Suspended DSA equipment has a support structure mounted on a ceiling rail, and the support structure can move along the extension direction of the ceiling rail, giving the suspended DSA equipment a larger detection range and greater flexibility. The ceiling rail is usually designed as a straight line, including tracks extending parallel to the catheter bed of the DSA equipment, allowing the support structure to move in a direction parallel to the catheter bed. Optionally, the ceiling rail also includes tracks extending perpendicular to the catheter bed, allowing the support structure to move in both parallel and perpendicular directions.

[0031] Please see Figures 1-2 In medical imaging equipment of related technologies, the support structure 20 is generally moved by assembling it with the ceiling rail 10 through the roller assembly 23. The overall width of the support structure 20 often exceeds the span of the ceiling rail 10, which means that the support structure 20 must be assembled from one end of the ceiling rail 10. At least one side of the ceiling rail 10 along the extension direction needs to reserve installation space equivalent to the length of the support structure 20. This not only limits the effective layout length of the ceiling rail 10, but may also lead to unnecessary waste of medical space.

[0032] To address the aforementioned issues, this application provides a medical imaging device with a movable connecting structure in at least one of the ceiling track 10 and the supporting structure 20. This allows for adjustment of at least one of the width of the supporting structure 20 and the span of the ceiling track 10, enabling the supporting structure 20 to be hoisted and installed at any position on the ceiling track 10. Compared to the fixed mechanical coupling between the roller assembly and the ceiling track 10 in related DSA devices, the medical imaging device of this application is more convenient to assemble and requires no additional installation space, thus improving the utilization rate of medical space.

[0033] Please see Figure 3 The medical imaging device of this application embodiment includes a ceiling track 10 and a supporting structure 20. The ceiling track 10 is mounted on a support member, which can be a wall of a treatment room or a steel structure frame located within the treatment room, depending on the overall layout and installation environment of the medical imaging device. The supporting structure 20 is mounted on the ceiling track 10, and the ceiling track 10 can guide the movement of the supporting structure 20. The supporting structure 20 provides an installation reference for other structures of the medical imaging device used for contrast imaging.

[0034] In this embodiment, the ceiling track 10 includes a mounting base 11 and two first movable members 12. The mounting base 11 is fixedly mounted on a support member. The two first movable members 12 are mounted side-by-side on the mounting base 11 along a first direction X. The first movable members 12 extend along a second direction Y, and each of the two first movable members 12 has a guide groove arranged opposite to each other along the first direction X. The guide groove is used to support the support structure 20 and guide the support structure 20 to move along the second direction Y. The support structure 20 includes a frame 21, a second movable member 22, and a roller assembly 23. The frame 21 is located between the two first movable members 12 in the first direction X. The second movable member 22 is mounted on the frame 21. The roller assembly 23 is mounted on the second movable member 22 and is used to roll with the first movable member 12 to guide the frame 21 to move along the second direction Y. The second direction Y is set at an angle to the first direction X.

[0035] In this configuration, at least one of the first movable component 12 and the second movable component 22 is configured to reciprocate relative to the frame 21 along a first direction X, allowing the span of the ceiling track 10 and the width of the supporting structure 20 to be adjusted as needed. It is understood that the distance between the two first movable components 12 along the first direction X is the width of the ceiling track 10, and the dimension of the supporting structure 20 along the first direction X is the width of the supporting structure 20. In actual assembly, by adjusting the position of the first movable component 12 or the second movable component 22, the supporting structure 20 can be hoisted into any position between the two first movable components 12 of the ceiling track 10, and the roller assembly 23 can be controlled to contact the first movable component 12 to achieve assembly. This eliminates the need to reserve installation space on one side of the ceiling track 10's extension direction, allowing for the deployment of a longer ceiling track 10 and improving the effective utilization of medical space.

[0036] In some embodiments, the first movable member 12 is movably mounted on the mounting base 11. The first movable member 12 reciprocates relative to the frame 21 along a first direction X. The distance between the two first movable members 12 is adjusted to facilitate the installation of the support structure 20. The two first movable members 12 are configured to move closer to or further away from each other along the first direction X. During the installation of the support structure 20, the two first movable members 12 are controlled to move further away from each other along the first direction X so that the span of the ceiling rail 10 is greater than the width of the support structure 20. At this time, the support structure 20 can be hoisted between the two first movable members 12 of the ceiling rail 10, and the roller assembly 23 of the support structure 20 is spaced apart from the first movable members 12 of the ceiling rail 10. Then, the two first movable members 12 are controlled to move closer to each other along the first direction X and gradually approach the roller assembly 23. When the roller assembly 23 contacts and is mounted on the first movable member 12, the support structure 20 is stably installed on the ceiling rail 10.

[0037] Optionally, the first movable member 12 is slidably engaged with the mounting base 11, for example, as Figure 4As shown, the mounting base 11 has a slide rail 110, and the first movable member 12 has a slider 121. The slider 121 is at least partially slidably disposed within the slide rail 110 along the first direction X, so that the first movable member 12 can move relative to the mounting base 11 along the first direction X. At this time, the top rail 10 also includes a locking assembly connected to the first movable member 12, which is used to fix the position of the first movable member 12 relative to the mounting base 11 along the first direction X.

[0038] In some embodiments, the second movable member 22 is movably mounted on the frame 21, and the second movable member 22 reciprocates relative to the frame 21 along a first direction X, that is, the second movable member 22 is telescopically connected to the frame 21 along the first direction X. The position of the second movable member 22 relative to the frame 21 along the first direction X is adjusted to facilitate the installation of the support structure 20. During the installation of the support structure 20, the second movable member 22 is first controlled to retract relative to the frame 21 so that the width of the support structure 20 is less than the span of the ceiling rail 10. At this time, the support structure 20 can be hoisted between the two first movable members 12 of the ceiling rail 10, and the roller assembly 23 of the support structure 20 is spaced apart from the first movable members 12 of the ceiling rail 10. Then, the second movable member 22 is controlled to extend relative to the frame 21 and drive the roller assembly 23 to move toward the first movable member 12. When the roller assembly 23 contacts and is installed on the first movable member 12, the support structure 20 is stably installed on the ceiling rail 10.

[0039] Please see Figure 5 and Figure 6 The frame 21 has multiple mounting surfaces to allow the second movable member 22 to be mounted on the frame 21 in different orientations. Optionally, the frame 21 includes two first mounting surfaces arranged opposite each other along the second direction Y, and the second movable member 22 is movably mounted on the first mounting surfaces. In some other embodiments, the frame 21 includes two second mounting surfaces arranged opposite each other along a third direction Z, and the second movable member 22 is movably mounted on the second mounting surfaces, wherein the first direction X, the second direction Y, and the third direction Z are mutually perpendicular.

[0040] Please see Figure 6 and Figure 7 The second movable member 22 is slidably connected to the frame 21. The frame 21 includes a mating part 211. The second movable member 22 includes a sliding part 221. The sliding part 221 is slidably engaged with the mating part 211 so that the second movable member 22 can switch between a first position and a second position along the first direction X. In the first position, the roller assembly 23 is assembled with the first movable member 12 to form a stable rolling pair. In the second position, the roller assembly 23 is disengaged from the first movable member 12, allowing the load-bearing structure 20 to be hoisted, installed, or disassembled.

[0041] Optionally, one of the sliding portion 221 and the mating portion 211 is a sliding groove and the other is a sliding protrusion, with the sliding protrusion slidably disposed within the sliding groove. For example, the sliding portion 221 has a sliding protrusion, and the mating portion 211 has a sliding groove, with the sliding protrusion slidably disposed within the sliding groove. Or, as... Figure 3 As shown, the sliding part 221 has a sliding groove, and the mating part 211 has a sliding protrusion, which is slidably disposed within the sliding groove. In some other embodiments, the sliding part 221 and the mating part 211 can also achieve a sliding fit through a slide rail-pulley connection.

[0042] In some embodiments, the supporting structure 20 further includes a fixing member 24, which is used to fix the relative position of the sliding part 221 and the mating part 211 to prevent the second movable part 22 from moving and being damaged during transportation. The sliding part 221 has an adjustment opening 22A that extends along a first direction X. The fixing member 24 partially passes through the adjustment opening 22A and is detachably mounted to the frame 21, wherein the fixing member 24 abuts against the second movable part 22 to fix the position of the second movable part 22 relative to the frame 21. At least a portion of the wall surface of the adjustment opening 22A is spaced apart from the fixing member 24 along the first direction X. Exemplarily, the fixing member 24 can be a bolt, with one end abutting against the second movable part 22 and the other end passing through the adjustment opening 22A and locked to the frame 21. Loosening the bolt by rotating it adjusts the position of the second movable part 22 relative to the frame 21, while tightening the bolt fixes the position of the second movable part 22 relative to the frame 21 through the axial clamping force of the bolt.

[0043] In some embodiments, the supporting structure 20 further includes a positioning member 25, which is used to fix the second movable member 22 in a first position and to form a stable connection between the second movable member 22 and the frame 21. The frame 21 includes a first positioning portion, and the second movable member 22 includes a second positioning portion. In the first position of the second movable member 22, the first positioning portion and the second positioning portion are aligned and engaged, and the positioning member 25 abuts against the second positioning portion and is limited by the first positioning portion. Exemplarily, the first positioning portion includes a first positioning hole 21A provided in the mating portion 211, and the second positioning portion includes a mounting hole 22B provided in the sliding portion 221. In the first position of the second movable member 22, the first positioning hole 21A and the mounting hole 22B are centered, and the positioning member 25 passes through the mounting hole 22B and is locked to the first positioning hole 21A.

[0044] Please see Figure 8A first positioning part is located at the mating part 211, and the first positioning part has a first positioning hole 21A. The frame 21 and the second movable part 22 are connected by a fixing part 24 and a positioning part 25. The first positioning part of the frame 21, which is used to install the positioning part 25, bears a large stress. In order to enhance the structural strength, the frame 21 also includes a reinforcing part 212. The reinforcing part 212 is connected to the mating part 211 corresponding to the first positioning part. The reinforcing part 212 has a second positioning hole. The positioning part 25 passes through the first positioning hole 21A of the first positioning part and extends into the second positioning hole of the reinforcing part 212. The reinforcing part 212 can effectively transfer the concentrated force near the first positioning part and the mating part 211 to a wider area, thereby avoiding damage caused by local stress concentration.

[0045] In some embodiments, the first movable member 12 is movably mounted on the mounting base 11 and reciprocates relative to the frame 21 along the first direction X. The second movable member 22 is movably mounted on the frame 21 and reciprocates relative to the frame 21 along the first direction X. By coordinating the control of the positions of the first movable member 12 and the second movable member 22 relative to the frame 21, the load-bearing structure 20 can be installed at any position between the two first movable members 12 of the ceiling track 10.

[0046] In the medical imaging device of the above embodiment, the supporting structure 20 includes multiple sets of roller assemblies 23. Each set of roller assemblies 23 rests against the second movable member 22 of the ceiling track 10 to form a support point. By distributing the load among multiple support points, the supporting structure 20 can maintain good stability even when bearing a large load, which is beneficial to improving the overall performance and service life of the medical imaging device. The frame 21 has a side wall facing the first movable member 12 and a mounting surface connected to the side wall. The supporting structure 20 includes multiple second movable members 22 and multiple sets of roller assemblies 23. The multiple second movable members 22 are distributed along the first direction X at the edge region of the mounting surface, and the multiple sets of roller assemblies 23 are mounted one-to-one with the multiple second movable members 22.

[0047] The mounting surface can be two first mounting surfaces on the frame 21 arranged opposite each other along the second direction Y. The load-bearing structure 20 includes four second movable members 22, with one second movable member 22 mounted on each of the two edge regions along the first direction X. Alternatively, the mounting surface can be two second mounting surfaces on the frame 21 arranged opposite each other along the third direction Z. The load-bearing structure 20 includes multiple second movable members 22, with multiple second movable members 22 symmetrically mounted on the two edge regions along the first direction X of one of the second mounting surfaces.

[0048] In some embodiments, the second movable member 22 includes a sliding portion 221, a mounting portion 222, and a plurality of reinforcing ribs 223. The sliding portion 221 is mounted on the frame 21, and the mounting portion 222 is connected to one end of the sliding portion 221 facing the first movable member 12. The mounting portion 222 provides a mounting base for the roller assembly 23, and the roller assembly 23 is mounted on the mounting portion 222. The plurality of reinforcing ribs 223 are spaced apart along the third direction Z, and one end of each reinforcing rib 223 is connected to the mounting portion 222 and the other end is connected to the sliding portion 221. The plurality of reinforcing ribs 223 can distribute the force, enabling the second movable member 22 to withstand a larger load, enhancing the structural strength of the second movable member 22, improving the stability and reliability of the roller assembly 23 on the mounting portion 222, and preventing deformation or damage due to excessive force.

[0049] In some embodiments, the roller assembly 23 includes multiple sets of roller groups 231 spaced apart along a second direction Y. Each roller group 231 includes two sets of rollers spaced apart along a third direction Z. The two sets of rollers in the same roller group 231 are arranged opposite each other along the third direction Z, and the two sets of rollers abut against the two end faces of the first movable member 12 that are arranged opposite each other along the third direction Z. In practical applications, the third direction Z is parallel to the vertical direction. The two sets of rollers abut against the two end faces of the first movable member 12 that are arranged opposite each other along the vertical direction, making the rolling cooperation between the roller assembly 23 and the first movable member 12 more stable. This can prevent the center of gravity of the medical imaging device from shifting from the center of gravity of the supporting structure 20, which would cause the supporting structure 20 to tilt, thus helping to improve the stability of the medical imaging device.

[0050] The medical imaging device of this application embodiment also includes a catheter bed, a robotic arm, a radiation generator structure, and a detector structure. The catheter bed is used for patient support, and the robotic arm is mounted on a support structure 20, which can drive the robotic arm to translate along a first direction X. The robotic arm can be a C-shaped arm with opposite ends. The radiation generator structure is mounted on one end of the C-shaped arm, and the detector structure is mounted on the other end of the C-shaped arm, with the radiation generator and detector structure aligned. The radiation generator structure is a structure capable of emitting X-rays, gamma rays, or electron beams, such as an X-ray tube or X-ray generator. The detector structure is capable of receiving the emitted radiation and converting the received radiation into digital signals to form an image.

[0051] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they 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. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A medical imaging device, characterized in that, include: The ceiling track includes a mounting base and two first movable members mounted on the mounting base. The two first movable members are arranged side by side along a first direction and extend along a second direction. and The load-bearing structure includes a frame, a second movable member, and a roller assembly. The frame is disposed between two first movable members in the first direction. The second movable member is mounted on the frame. The roller assembly is mounted on the second movable member and is used to roll with the first movable member to guide the frame to move along the second direction. Wherein, at least one of the first movable member and the second movable member is configured to reciprocate relative to the frame along the first direction, so as to drive the roller assembly to contact or separate from the first movable member, and the second direction is set at an angle to the first direction.

2. The medical imaging device according to claim 1, characterized in that, The first movable component is movably mounted on the mounting base, and the first movable component reciprocates relative to the frame along the first direction; The two first movable members are configured to move closer to each other along a first direction so that the roller assembly is mounted on the first movable members, and the two first movable members are configured to move further apart from each other along the first direction so that the roller assembly is disengaged from the first movable members.

3. The medical imaging device according to claim 1, characterized in that, The second movable member is movably mounted on the frame, and the second movable member reciprocates relative to the frame along the first direction; The frame includes two first mounting surfaces arranged opposite each other along a second direction, and the second movable member is movably mounted on the first mounting surfaces; or, The frame includes two second mounting surfaces arranged opposite each other along a third direction, and the second movable component is movably mounted on the second mounting surfaces; Wherein, the first direction, the second direction, and the third direction are perpendicular to each other.

4. The medical imaging device according to claim 3, characterized in that, The frame includes a mating part, and the second movable member includes a sliding part. The sliding part is slidably engaged with the mating part to allow the second movable member to switch between a first position and a second position along a first direction. In the first position, the roller assembly is mounted on the first movable member, and in the second position, the roller assembly is disengaged from the first movable member.

5. The medical imaging device according to claim 4, characterized in that, The sliding part has an adjustment opening that extends along the first direction; the bearing structure further includes a fixing member that partially passes through the adjustment opening and is detachably installed on the frame, wherein the fixing member abuts against the second movable member to fix the position of the second movable member relative to the frame; Along the first direction, at least a portion of the wall surface of the adjustment opening is spaced apart from the fastener.

6. The medical imaging device according to claim 4, characterized in that, The medical imaging device further includes a positioning component; the frame includes a first positioning part, and the second movable component includes a second positioning part; at the first position of the second movable component, the first positioning part and the second positioning part are aligned and cooperate, and the positioning component abuts against the second positioning part and is limited and cooperates with the first positioning part.

7. The medical imaging device according to claim 6, characterized in that, The first positioning part is disposed on the mating part, and the first positioning part is provided with a first positioning hole; The frame also includes a reinforcing part, which is connected to the mating part corresponding to the first positioning part. The reinforcing part is provided with a second positioning hole, and the positioning member passes through the first positioning hole of the first positioning part and extends into the second positioning hole of the reinforcing part.

8. The medical imaging device according to any one of claims 1-7, characterized in that, The frame has a side wall facing the first movable member and a mounting surface connected to the side wall; The medical imaging device includes multiple second movable parts and multiple sets of roller assemblies. The multiple second movable parts are disposed along the edge region of the mounting surface in a first direction, and the multiple sets of roller assemblies are installed one-to-one with the multiple second movable parts.

9. The medical imaging device according to any one of claims 1-7, characterized in that, The second movable component includes: A sliding part for mounting on the frame; A mounting portion is connected to the end of the sliding portion facing the first movable member, and the roller assembly is mounted on the mounting portion; and Multiple reinforcing ribs are spaced apart along a third direction, with one end of each reinforcing rib connected to the mounting part and the other end connected to the sliding part, wherein the first direction, the second direction, and the third direction are perpendicular to each other.

10. The medical imaging device according to any one of claims 1-7, characterized in that, The roller assembly includes multiple sets of roller groups spaced apart along the second direction. Each set of rollers includes two sets of rollers spaced apart along a third direction. The two sets of rollers in the same set of rollers are arranged opposite to each other along the third direction and are used to abut against the two end faces of the first movable member that are arranged opposite to each other along the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

Images