Waist bridge structure and operating bed

Abstract

The invention relates to a waist bridge structure and an operating bed. The waist bridge structure comprises a rack; the driving assembly is arranged on the rack; the transmission assembly is rotatably arranged on the rack and is in transmission connection with the output end of the driving assembly; the output assembly comprises an arc-shaped rack, the arc-shaped rack is movably arranged on the rack and is in meshed connection with the transmission assembly, and the transmission assembly can drive one end of the arc-shaped rack to extend out of or move into the rack; and the waist bridge plate is connected to one end of the arc-shaped rack and moves along with the arc-shaped rack. Therefore, the transmission assembly is matched with the annular rack, so that enough thrust and movement stroke can be provided for the movement of the waist bridge plate, the accurate adjustment of the position of the waist bridge plate is realized, and the body position requirement of a specific operation is met. Meanwhile, the sizes of the transmission assembly and the arc-shaped rack are small, the overall size of the waist bridge structure can be reduced, the space occupied by the waist bridge structure in the operating bed is reduced, interference between the waist bridge structure and other components is avoided, and the use performance is guaranteed.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a lumbar bridge structure and an operating table. Background Technology

[0002] The lumbar bridge on the operating table is a very specialized and important structure. It is mainly used to provide local elevation of the lumbar region to precisely adjust the patient's lumbar position to meet the positioning requirements of specific surgeries (especially spinal and kidney surgeries) and create more ideal conditions for surgery.

[0003] Current operating table lumbar bridges, in order to ensure sufficient thrust and stroke, have relatively large transmission structures, thus increasing the overall required size of the operating table. Typically, the dimensions of an operating table are fixed; an excessively large lumbar bridge would occupy too much space and interfere with other components on the operating table, such as surgical robots, hindering its use in conjunction with other parts. Summary of the Invention

[0004] Therefore, it is necessary to address the problems of the large size of the current operating table lumbar bridge, which leads to excessive occupation of operating table space and interference with other components, by providing a lumbar bridge structure and operating table that can provide sufficient thrust and stroke for the movement of the lumbar bridge plate, and reduce the overall size of the lumbar bridge structure to reduce the space occupied by the lumbar bridge structure on the operating table.

[0005] In a first aspect, this application provides a waist bridge structure, comprising:

[0006] frame;

[0007] The drive assembly is mounted on the rack;

[0008] A transmission assembly is rotatably mounted on the frame and is drively connected to the output end of the drive assembly;

[0009] An output component includes an arc-shaped rack movably mounted on the frame and meshing with the transmission component, the transmission component capable of driving one end of the arc-shaped rack to extend out of or move into the frame; and

[0010] The waist bridge plate is connected to one end of the arc-shaped rack and moves with the arc-shaped rack.

[0011] In one embodiment of this application, the waist bridge structure further includes a guide component, and the arc-shaped rack includes an arc-shaped mounting body and an arc-shaped rack portion, the rack portion being disposed on the side of the mounting body and extending toward the direction of the transmission component;

[0012] The guide component is rotatably disposed on the frame and located on the periphery of the mounting body. The guide component is movable and abuts against the mounting body to guide and limit the movement of the arc-shaped rack.

[0013] In one embodiment of this application, the guide assembly includes a first guide member and a second guide member disposed on the frame. The first guide member and the second guide member are disposed on both sides of the mounting body along the axial direction of the arc-shaped rack and rotatably abut against the side of the mounting body.

[0014] In one embodiment of this application, the guiding assembly includes a third guide member and a fourth guide member disposed on the frame. The third guide member is located on the side of the arc-shaped rack away from the transmission assembly and rotatably abuts against the mounting body. The fourth guide member is located on the side of the arc-shaped rack facing the transmission assembly and rotatably abuts against the mounting body. The fourth guide member and the transmission assembly have a preset distance along the circumference.

[0015] In one embodiment of this application, the first guide member, the second guide member, the third guide member, and the fourth guide member are support bearings with support shafts. The inner ring of the support bearing is fixed to the frame by the support shaft, and the outer ring of the support bearing abuts against the mounting body.

[0016] Alternatively, the first guide, the second guide, the third guide, and the fourth guide may be rollers with fixed shafts, the fixed shafts being fixed to the frame, and the rollers being rotatably disposed on the fixed shafts and abutting against the mounting body.

[0017] In one embodiment of this application, the frame is provided with a receiving slot and a moving opening, the moving opening connecting the receiving slot to the external environment, the receiving slot being used to receive the arc-shaped rack, the arc-shaped rack extending out of or moving into the receiving slot through the moving opening;

[0018] The first guide, the second guide, the third guide, and the fourth guide are at least partially located in the receiving groove.

[0019] In one embodiment of this application, the first guide, the second guide, the third guide, and the fourth guide are disposed close to the movement opening;

[0020] And / or, the number of the first guide, the second guide, the third guide, and the fourth guide is at least two, and they are spaced apart circumferentially along the arc-shaped rack.

[0021] In one embodiment of this application, the transmission assembly includes a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear is disposed at the output end of the drive assembly. The second transmission gear is rotatably located on the side of the first transmission gear facing the arc-shaped rack and meshes with the first transmission gear. The third transmission gear is coaxially disposed with the second transmission gear and rotates with the second transmission gear. The third transmission gear meshes with the arc-shaped rack.

[0022] In one embodiment of this application, the first transmission gear and the second transmission gear are 45° helical involute gears;

[0023] The third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear.

[0024] In one embodiment of this application, the first transmission gear and the second transmission gear are bevel gears, the third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear;

[0025] Alternatively, the first transmission gear is a worm, the second transmission gear is a worm wheel meshing with the worm, the third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear.

[0026] In one embodiment of this application, the base circle radius of the arc-shaped rack is 5 to 10 times the base circle radius of the third transmission gear.

[0027] In one embodiment of this application, the transmission assembly includes a first transmission gear and a second transmission gear. The first transmission gear is disposed at the output end of the drive assembly, and the second transmission gear is rotatably located on the side of the first transmission gear facing the arc-shaped rack, and meshes with the first transmission gear and the arc-shaped rack.

[0028] Wherein, the first transmission gear and the second transmission gear are 45° helical involute gears, and the teeth of the arc-shaped rack are 45° involute helical teeth.

[0029] In one embodiment of this application, the output component further includes an adapter component, which is rotatably disposed at one end of the arc-shaped rack, and the adapter component is used to fix the waist bridge plate.

[0030] And / or, the side of the frame is provided with a recessed mounting space, and the drive assembly and the transmission assembly are at least partially disposed in the mounting space;

[0031] And / or, the waist bridge structure further includes a housing, which is disposed on the frame and covers the drive assembly, the transmission assembly and the output assembly;

[0032] And / or, the drive assembly includes a drive motor, a reducer, and an angle detection element, wherein the reducer is disposed at the output end of the drive motor, and the transmission assembly is disposed at the output end of the reducer.

[0033] Secondly, this application provides an operating table, including a bed body and a lumbar bridge structure as described in any of the above technical features. The lumbar bridge structure is located in the middle region of the bed body. The frame is mounted on the bed body. The drive assembly drives the arc-shaped rack through the transmission assembly to cause the lumbar bridge plate to extend or retract from the bed body.

[0034] By adopting the above technical solution, this application has at least the following technical effects:

[0035] The lumbar bridge structure and operating table of this application employ an arc-shaped rack and pinion drive to connect the transmission assembly and the lumbar bridge plate. The drive assembly, through the transmission assembly, drives the arc-shaped rack to extend or retract into the frame, thereby enabling the arc-shaped rack to raise or lower the lumbar bridge plate. In this way, the cooperation between the transmission assembly and the ring rack provides sufficient thrust and stroke for the movement of the lumbar bridge plate, achieving accurate adjustment of its position to meet the positioning requirements of specific surgeries. Simultaneously, the small size of the transmission assembly and the arc-shaped rack reduces the overall size of the lumbar bridge structure, minimizing the space occupied by the lumbar bridge structure on the operating table and preventing interference between the lumbar bridge structure and other components, thus ensuring performance. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of a waist bridge structure according to an embodiment of this application.

[0037] Figure 2 for Figure 1 The diagram shown is a schematic of the waist bridge structure without its outer shell.

[0038] Figure 3 for Figure 2 The diagram shows an enlarged view of the layout of the waist bridge structure at point A.

[0039] Figure 4 for Figure 1 The diagram shown is a schematic of the waist bridge structure without the frame.

[0040] Figure 5 for Figure 4 The diagram shows the arc-shaped rack extending from one perspective in the waist bridge structure shown.

[0041] Figure 6 for Figure 5 The diagram shown is a schematic of the curved rack extending from another perspective in the waist bridge structure.

[0042] Figure 7 for Figure 6 The enlarged view of the waist bridge structure at point B is shown.

[0043] The components are as follows: 100, waist bridge structure; 110, frame; 111, receiving slot; 112, movement opening; 113, installation space; 120, drive assembly; 121, drive motor; 122, reducer; 123, angle detection component; 130, transmission assembly; 131, first transmission gear; 132, second transmission gear; 133, third transmission gear; 140, output assembly; 141, arc rack; 1411, mounting body; 1412, rack section; 142, adapter component; 1421, connecting hinge; 1422, fixing body; 150, outer shell; 151, handrail; 160, guide assembly; 161, first guide member; 162, second guide member; 163, third guide member; 164, fourth guide member. Detailed Implementation

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] Understandably, the lumbar bridge is a highly specialized and crucial structure on the operating table. Its primary function is to provide localized elevation of the lumbar region to precisely adjust the patient's lumbar position, meeting the positioning requirements of specific surgeries (especially spinal and kidney surgeries) and creating more ideal surgical conditions. Current lumbar bridges, to ensure sufficient thrust and stroke, have relatively large transmission structures, thus increasing the overall size of the operating table. Typically, given a fixed operating table size, an excessively large lumbar bridge would occupy too much space and interfere with other components, such as surgical robots, hindering its integration with other parts of the operating table.

[0051] For this purpose, please refer to Figure 1 and Figure 2This application provides a lumbar bridge structure 100. The lumbar bridge structure 100 is applied in an operating table (not shown) to support the lumbar region of the patient, thereby locally elevating the lumbar region and enabling precise adjustment of the patient's lumbar position to meet the positioning requirements of specific surgeries (especially spinal and kidney surgeries), creating more ideal conditions for the surgery.

[0052] To better illustrate the specific structure of the lumbar bridge structure 100, the operating table is briefly described here, including the bed body (not shown) and the lumbar bridge structure 100 of this application. The lumbar bridge structure 100 is located in the middle area of ​​the bed body. The lumbar bridge structure 100 can rise or fall relative to the bed body. When the lumbar bridge structure 100 rises relative to the bed body, the lumbar bridge structure 100 protrudes from the surface of the bed body to elevate the patient's waist.

[0053] Furthermore, the height of the lumbar bridge structure 100 relative to the bed is adjustable to meet the surgical needs of different patients and in different scenarios. After the surgery, the lumbar bridge structure 100 lowers and becomes flush with the surface of the bed to meet subsequent usage needs. When the lumbar bridge structure 100 is not needed, it remains flush with the surface of the bed to meet the needs of other types of surgeries.

[0054] The lumbar bridge structure 100 of this application can provide sufficient thrust and stroke for the movement of the lumbar bridge plate, enabling accurate adjustment of the lumbar bridge plate position and meeting the positioning requirements of specific surgeries. Simultaneously, the overall size of the lumbar bridge structure 100 is small, reducing the space occupied by the lumbar bridge structure 100 on the operating table and avoiding interference between the lumbar bridge structure 100 and other components, thus ensuring performance. The specific structure of the lumbar bridge structure 100 in some embodiments is described below.

[0055] See Figure 1 , Figure 2 , Figures 4 to 6 In one embodiment, the waist bridge structure 100 includes a frame 110, a drive assembly 120, a transmission assembly 130, an output assembly 140, and a waist bridge plate (not shown). The drive assembly 120 is disposed on the frame 110. The transmission assembly 130 is rotatably disposed on the frame 110 and is drively connected to the output end of the drive assembly 120. The output assembly 140 includes an arc-shaped rack 141, which is movably disposed on the frame 110 and meshes with the transmission assembly 130. The transmission assembly 130 can drive one end of the arc-shaped rack 141 to extend out of or move into the frame 110. The waist bridge plate is connected to one end of the arc-shaped rack 141 and moves with the arc-shaped rack 141.

[0056] The frame 110 serves as the base for supporting and mounting the waist bridge structure 100. Most components of the waist bridge structure 100 are installed in the frame 110. The frame 110 supports and mounts the various components of the waist bridge structure 100, integrating them into a single unit. Furthermore, the frame 110 can be fixedly mounted onto the bed frame, allowing the waist bridge structure 100 to be installed as a whole in the central area of ​​the bed frame.

[0057] The drive assembly 120 is the power source for the lumbar bridge structure 100, and the transmission assembly 130 is the power transmission component of the lumbar bridge structure 100, capable of driving the drive assembly 120 and the output assembly 140 to transmit power to the output assembly 140. The output assembly 140 is the output component of the lumbar bridge structure 100, and its end can be connected to the lumbar bridge plate, driving the lumbar bridge plate to move. The lumbar bridge plate is the component of the lumbar bridge structure 100 that contacts the patient's waist and provides support for the patient's waist.

[0058] When the lumbar bridge structure 100 is in its initial position, the drive assembly 120 is not in operation, and the output assembly 140 remains in the position of the insertion frame 110, with the lumbar bridge plate flush with the surface of the bed. When the lumbar bridge plate is used for support, the drive assembly 120 can drive the transmission assembly 130 to move the output assembly 140, thereby allowing the output assembly 140 to extend out of the frame 110 and raise the lumbar bridge plate relative to the bed. At this time, the surface of the lumbar bridge plate protrudes from the surface of the bed, providing support for the patient's lower back.

[0059] Specifically, the output component 140 includes an arc-shaped rack 141, which is arc-shaped and movably mounted on the frame 110. The arc-shaped rack 141 can mesh with the transmission component 130, and one end of the arc-shaped rack 141 can connect with the waist bridge plate. The drive component 120 drives the transmission component 130 to rotate, and the transmission component 130 can drive the arc-shaped rack 141 to move through the meshing relationship, so that one end of the arc-shaped rack 141 can extend or move into the frame 110, thereby causing the waist bridge plate to rise or fall relative to the bed.

[0060] When the lumbar bridge plate is used for support, the drive assembly 120 drives the transmission assembly 130 to rotate in one direction. In turn, the transmission assembly 130 drives the arc-shaped rack 141 to gradually extend out of the frame 110 through the meshing relationship. Since one end of the arc-shaped rack 141 is connected to the lumbar bridge plate, after one end of the arc-shaped rack 141 extends out of the frame 110, the arc-shaped rack 141 can drive the lumbar bridge plate to rise in the height direction to support the patient's waist.

[0061] Furthermore, by controlling the extension of the arc-shaped rack 141 out of the frame 110 through the drive assembly 120 and the transmission assembly 130, the height of the lumbar bridge plate can be controlled, ensuring that the position of the lumbar bridge plate meets the postural requirements of a specific surgery, thus achieving accurate adjustment of the lumbar bridge plate position. After the surgery, the drive assembly 120 drives the transmission assembly 130 to rotate in another direction, and then the transmission assembly 130 gradually drives the arc-shaped rack 141 into the frame 110 through meshing, so that the lumbar bridge plate gradually returns to its initial position.

[0062] This application achieves accurate adjustment of the lumbar bridge plate position through the cooperation of the transmission component 130 and the arc-shaped rack 141. The transmission component 130 and the arc-shaped rack 141, in cooperation, can provide sufficient thrust and travel for the lifting and lowering of the lumbar bridge plate to meet surgical requirements. Furthermore, the transmission component 130 and the arc-shaped rack 141 are small in size and occupy little space in the frame 110, thereby reducing the overall size of the lumbar bridge structure 100 and thus reducing the space occupied by the lumbar bridge structure 100 on the operating table.

[0063] It is worth noting that the focus of this application is on the specific structure of the lumbar bridge structure 100, so as to reduce the overall size of the lumbar bridge structure 100 while ensuring that the lumbar bridge structure 100 has sufficient thrust and movement stroke. How the lumbar bridge plate supports the patient's waist is not the focus of this application and will not be discussed further below.

[0064] The lumbar bridge structure 100 in the above embodiment uses an arc-shaped rack 141 to connect the transmission assembly 130 and the lumbar bridge plate. The drive assembly 120 drives the arc-shaped rack 141 to extend or retract from the frame 110 through the transmission assembly 130, thereby enabling the arc-shaped rack 141 to raise or lower the lumbar bridge plate. Thus, the cooperation between the transmission assembly 130 and the ring rack provides sufficient thrust and stroke for the movement of the lumbar bridge plate, achieving accurate adjustment of the lumbar bridge plate position to meet the positioning requirements of specific surgeries. Simultaneously, the small size of the transmission assembly 130 and the arc-shaped rack 141 reduces the overall size of the lumbar bridge structure 100, thereby reducing the space occupied by the lumbar bridge structure 100 on the operating table and preventing interference between the lumbar bridge structure 100 and other components, ensuring performance.

[0065] See Figures 2 to 6 In one embodiment, the output component 140 further includes a connecting component 142, which is rotatably disposed at one end of the arc-shaped rack 141. The connecting component 142 is used to fix the waist bridge plate. The connecting component 142 is the component that realizes the connection between the arc-shaped rack 141 and the waist bridge plate. The connecting component 142 is disposed at one end of the arc-shaped rack 141, and the waist bridge plate is fixedly installed on the connecting component 142 so that the waist bridge plate is fixed to one end of the arc-shaped rack 141 and can rise and fall with the movement of the arc-shaped rack 141.

[0066] Furthermore, when the arc-shaped rack 141 moves up and down, the movement trajectory of one end of the arc-shaped rack 141 is arc-shaped. After the adapter 142 is rotatably set at one end of the arc-shaped rack 141, the lumbar bridge plate can adjust its position relative to the arc-shaped rack 141 through the adapter 142, so that the lumbar bridge plate always remains in a horizontal state, thereby ensuring the lumbar bridge plate's support effect on the patient's waist.

[0067] See Figures 2 to 6 In one embodiment, the adapter 142 includes a connecting hinge 1421 and a fixing body 1422. The connecting hinge 1421 is rotatably connected to one end of the arc-shaped rack 141, and the fixing body 1422 is disposed on the connecting hinge 1421 and fixes the waist bridge plate. The fixing body 1422 is located on the side of the connecting hinge 1421 and extends horizontally. After the connecting hinge 1421 is rotatably connected to one end of the arc-shaped rack 141, the fixing body 1422 is indirectly connected to the arc-shaped rack 141. In this way, the waist bridge plate is indirectly installed to the arc-shaped rack 141 through the fixing body 1422.

[0068] See Figures 2 to 6 Optionally, the fixing body 1422 is provided with fixing holes, and fasteners are installed through the waist bridge plate in the fixing holes to fix the waist bridge plate to the fixing body 1422. Optionally, the fixing body 1422 is a fixing plate or fixing seat, etc. Optionally, the fastener is a threaded part. Optionally, there are two fixing bodies 1422, which are symmetrically arranged on both sides of the connecting hinge 1421. In this way, the waist bridge plate can be connected to two fixing bodies 1422 at the same time, increasing the connection area between the waist bridge plate and the adapter 142 and improving the reliability of the connection. Of course, in other embodiments, the number of fixing bodies 1422 can also be one or other numbers. Optionally, the fixing body 1422 and the connecting hinge 1421 are an integral structure, which can improve the structural strength of the adapter 142 and avoid breakage at the connection between the fixing body 1422 and the connecting hinge 1421. Of course, in other embodiments, the fixing body 1422 and the connecting hinge 1421 can also be set separately and reliably connected by screws, etc.

[0069] See Figure 2 and Figure 3 In one embodiment, the frame 110 is provided with a receiving groove 111 and a movement opening 112. The movement opening 112 connects the receiving groove 111 to the external environment. The receiving groove 111 is used to receive an arc-shaped rack 141, which extends out of or moves into the receiving groove 111 through the movement opening 112. One inner cavity of the frame 110 is the receiving groove 111, in which the arc-shaped rack 141 is movably received. The movement opening 112 is an opening on the surface of the frame 110, which can connect to the receiving groove 111.

[0070] When the lumbar bridge structure 100 is in its initial position, the arc-shaped rack 141 is fully contained within the receiving groove 111, and the adapter 142 is located at the movement opening 112. As the lumbar bridge plate rises, the arc-shaped rack 141 extends through the movement opening 112, and the position of the lumbar bridge plate is adjusted via the adapter 142 to support the patient's lower back. At this time, the arc-shaped rack portion 1412 is partially contained within the receiving groove 111, with a portion located on the outside of the frame 110.

[0071] See Figure 2 In one embodiment, the frame 110 has a recessed mounting space 113 on its side, and the drive assembly 120 and transmission assembly 130 are at least partially disposed in the mounting space 113. The mounting space 113 is located on the side of the arc-shaped rack 141 facing away from the bed surface, that is, the mounting space 113 is actually located below the receiving groove 111. In this way, the drive assembly 120 and transmission assembly 130 can be located below the arc-shaped rack 141, avoiding the drive assembly 120 and transmission assembly 130 occupying space above the arc-shaped rack 141, which facilitates the arc-shaped rack 141 driving the waist bridge plate to rise or fall.

[0072] Furthermore, in this embodiment, the drive assembly 120 and the transmission assembly 130 are entirely located within the mounting space 113. This prevents the drive assembly 120 and the transmission assembly 130 from protruding from the side of the frame 110, thereby reducing the dimension of the waist bridge structure 100 along the thickness direction of the frame 110 and thus reducing the overall volume of the waist bridge structure 100. Of course, in other embodiments, the drive assembly 120 and the transmission assembly 130 may also be partially located within the mounting space 113. Moreover, the mounting space 113 communicates with the receiving groove 111, that is, there is a communication area between the mounting space 113 and the receiving groove 111. In this way, the transmission assembly 130 can mesh with the arc-shaped rack 141 through the area communicating between the mounting space 113 and the receiving groove 111, facilitating the transmission engagement between the transmission assembly 130 and the arc-shaped rack 141.

[0073] See Figure 1 and Figure 2In one embodiment, the waist bridge structure 100 further includes a housing 150, which is disposed on the frame 110 and covers the drive assembly 120, transmission assembly 130, and output assembly 140. The housing 150 covers the side of the frame 110 and shields the drive assembly 120, transmission assembly 130, and output assembly 140, preventing them from being exposed. Thus, the drive assembly 120, transmission assembly 130, and output assembly 140 are located within the frame 110, preventing other components from contacting them and ensuring the reliability of their movement. Optionally, the housing 150 is fixed to the frame 110 with screws. Optionally, a handrail 151 is provided on the surface of the housing 150 facing away from the frame 110.

[0074] See Figures 2 to 6 In one embodiment, the drive assembly 120 includes a drive motor 121 and a reducer 122. The reducer 122 is disposed at the output end of the drive motor 121, and the transmission assembly 130 is disposed at the output end of the reducer 122. The drive motor 121 is the power source of the waist bridge structure 100. The drive motor 121 is fixedly disposed on the frame 110. The reducer 122 drives the drive motor 121 and the transmission assembly 130 to reduce the power of the drive motor 121 and transmit it to the transmission assembly 130 to meet the rotation requirements of the arc-shaped rack 141. Optionally, the drive motor 121 is a servo motor or other type of motor. Optionally, the reducer 122 is a planetary reducer. Optionally, the drive motor 121 and the reducer 122 are integrated into one unit. Of course, in other embodiments, the drive motor 121 and the reducer 122 can also be disposed separately.

[0075] See Figure 2 In one embodiment, the drive assembly 120 further includes an angle detection element 123, which is disposed on the transmission assembly 130. The angle detection element 123 can detect the rotation angle of the output end of the drive motor 121. Thus, based on the rotation angle of the output end of the drive motor 121 and the transmission ratio between the transmission assembly 130 and the arc-shaped rack 141, the height of the arc-shaped rack 141 extending out of the frame 110 can be calculated, thereby obtaining the height of the lumbar bridge plate relative to the bed, and determining whether the height of the lumbar bridge plate meets the surgical requirements. Optionally, the angle detection element 123 is an absolute encoder. Of course, in other embodiments, the angle detection element 123 can also be other components capable of detecting the rotation angle of the output end of the drive motor 121, such as a combination of a photoelectric sensor and a grating.

[0076] See Figures 2 to 7In one embodiment, the waist bridge structure 100 further includes a guide assembly 160. The arc-shaped rack 141 includes an arc-shaped mounting body 1411 and an arc-shaped rack portion 1412. The rack portion 1412 is disposed on the side of the mounting body 1411 and extends toward the transmission assembly 130. The guide assembly 160 is rotatably disposed on the frame 110 and located on the periphery of the mounting body 1411. The guide assembly 160 movably abuts against the mounting body 1411 to guide and limit the movement of the arc-shaped rack 141. The rack portion 1412 is located on the axial side of the mounting body 1411 and protrudes from the outer peripheral surface of the mounting body 1411. In this way, the rack portion 1412 can mesh with the transmission assembly 130, and the transmission assembly 130 will not abut against the mounting body 1411 to avoid interference between the transmission assembly 130 and other parts of the arc-shaped rack 141.

[0077] The guide assembly 160 is movably disposed on the frame 110 and located around the periphery of the mounting body 1411. The guide assembly 160 movably abuts against the mounting body 1411 to guide and limit the movement of the arc-shaped rack 141. Specifically, because the mounting body 1411 can abut against the guide assembly 160, when the arc-shaped rack 141 moves, the mounting body 1411 can move along the guide assembly 160. The guide assembly 160 can accurately guide and limit the arc-shaped rack 141, ensuring the accurate movement trajectory of the arc-shaped rack 141. Thus, the arc-shaped rack 141 can accurately drive the lumbar bridge plate to rise and fall, achieving accurate adjustment of the lumbar bridge plate position to meet surgical needs.

[0078] See Figures 2 to 7In one embodiment, the guide assembly 160 includes a first guide member 161 and a second guide member 162 disposed on the frame 110. The first guide member 161 and the second guide member 162 are respectively disposed on both sides of the mounting body 1411 along the axial direction of the arc-shaped rack 141, and rotatably abut against the side of the mounting body 1411. When the arc-shaped rack 141 moves, the axial sides of the mounting body 1411 can move along the first guide member 161 and the second guide member 162. After the first guide member 161 and the second guide member 162 are provided on both sides of the axial direction of the mounting body 1411, the first guide member 161 and the second guide member 162 can guide and limit the mounting body 1411 in the axial direction, preventing the mounting body 1411 from moving axially, and ensuring that the arc-shaped rack 141 can accurately extend or move into the frame 110 between the first guide member 161 and the second guide member 162, thereby ensuring the accuracy of the lifting trajectory of the waist bridge plate. Meanwhile, the first guide member 161 and the second guide member 162 can rotatably abut against the mounting body 1411, which can also reduce the friction between the mounting body 1411 and the first guide member 161 and the second guide member 162, ensuring smooth movement of the arc-shaped rack 141, avoiding jamming of the movement of the arc-shaped rack 141, and thus ensuring smooth lifting and lowering of the waist bridge plate.

[0079] See Figures 2 to 7 In one embodiment, the guide assembly 160 includes a third guide 163 and a fourth guide 164 disposed on the frame 110. The third guide 163 is located on the side of the arc-shaped rack 141 facing away from the transmission assembly 130 and rotatably abuts against the mounting body 1411. The fourth guide 164 is located on the side of the arc-shaped rack 141 facing the transmission assembly 130 and rotatably abuts against the mounting body 1411. The fourth guide 164 and the transmission assembly 130 have a predetermined circumferential distance. When the arc-shaped rack 141 moves, the radial sides of the mounting body 1411 can move along the third guide 163 and the fourth guide 164. After the third guide member 163 and the fourth guide member 164 are provided on both radial sides of the mounting body 1411, the third guide member 163 and the fourth guide member 164 can guide and limit the mounting body 1411 radially, preventing the mounting body 1411 from moving radially. This ensures that the arc-shaped rack 141 can accurately extend or move into the frame 110 between the third guide member 163 and the fourth guide member 164, thereby ensuring the accuracy of the lifting trajectory of the waist bridge plate. At the same time, the third guide member 163 and the fourth guide member 164 can rotatably abut against the mounting body 1411, which can also reduce the friction between the mounting body 1411 and the third guide member 163 and the fourth guide member 164, ensuring smooth movement of the arc-shaped rack 141 and preventing jamming of the arc-shaped rack 141, thus ensuring smooth lifting movement of the waist bridge plate.

[0080] It should be noted that the guide component 160 of this application includes a first guide member 161, a second guide member 162, a third guide member 163, and a fourth guide member 164. The first guide member 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 are located around the mounting body 1411. The first guide member 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 guide and limit the movement of the arc-shaped body, ensuring the accurate lifting trajectory of the waist bridge plate. Of course, in other embodiments, the guide component 160 may also include only at least one of the first guide member 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 to guide and limit the movement of the arc-shaped body in the corresponding direction.

[0081] See Figures 2 to 7 In one embodiment, the first guide member 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 are support bearings with support shafts. The inner ring of the support bearing is fixed to the frame 110 via the support shaft, and the outer ring of the support bearing abuts against the mounting body 1411. In this embodiment, the support bearing guides and limits the movement of the arc-shaped rack 141. When the arc-shaped rack 141 moves, the mounting body 1411 can push the outer ring of the support bearing to rotate relative to the inner ring through the abutment relationship. While limiting the movement of the mounting body 1411, the support bearing can also guide the movement of the arc-shaped rack 141 and reduce the friction between the support bearing and the arc-shaped rack 141, thus preventing the movement of the arc-shaped rack 141 from becoming stuck.

[0082] Of course, in other embodiments, the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164 are rollers with fixed shafts. The fixed shafts are fixed to the frame 110, and the rollers are rotatably mounted on the fixed shafts and abut against the mounting body 1411. In this embodiment, the rollers guide the movement of the arc-shaped rack 141. When the arc-shaped rack 141 moves, the mounting body 1411 can push the rollers to rotate relative to the fixed shaft through the abutment relationship. While limiting the mounting body 1411, the rollers can also guide the movement of the arc-shaped rack 141 and reduce the friction between the rollers and the arc-shaped rack 141, preventing the movement of the arc-shaped rack 141 from getting stuck.

[0083] Optionally, the mounting body 1411 protrudes radially from the rack portion 1412 on the side opposite to the transmission assembly 130. That is, the mounting body 1411 protrudes radially inward from the rack portion 1412. This creates a space between the top of the rack portion 1412 and the side of the mounting body 1411, which can accommodate the first guide member 161, reducing the axial space occupied by the first guide member 161 and thus reducing the dimension of the waist bridge structure 100 along the thickness direction of the frame 110. Optionally, the rack portion 1412 and the mounting body 1411 are separate components connected by threaded connections. This facilitates the forming and machining of the arc-shaped rack 141.

[0084] See Figures 2 to 7 In one embodiment, the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164 are at least partially located in the receiving groove 111. In this way, the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164 can abut against the mounting body 1411 in the receiving groove 111 without excessively occupying the space of the receiving groove 111, thus avoiding affecting the movement of the arc-shaped rack 141.

[0085] See Figures 2 to 7 In one embodiment, the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164 are positioned close to the movement opening 112. It is understood that after the arc-shaped rack 141 extends out of the frame 110, a portion of the arc-shaped rack 141 remains in the receiving groove 111 near the movement opening 112. Positioning the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164 close to the movement opening 112 ensures that they remain in contact with the arc-shaped rack 141, guaranteeing its guiding and limiting effect. Simultaneously, it prevents the arc-shaped rack 141 from disengaging from the first guide 161, the second guide 162, the third guide 163, and the fourth guide 164, thus avoiding affecting the return of the arc-shaped rack 141.

[0086] See Figures 2 to 7 In one embodiment, the number of the first guide member 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 are all at least two, and they are spaced apart along the circumference of the arc-shaped rack 141. That is, at least two guide members are provided on each side of the arc-shaped rack 141. In this way, at least two of the first guide members 161, the second guide member 162, the third guide member 163, and the fourth guide member 164 can guide the arc-shaped rack 141 around its perimeter, improving the guiding and limiting effect of the arc-shaped rack 141.

[0087] See Figure 2 , Figures 4 to 7 In one embodiment of this application, the transmission assembly 130 includes a first transmission gear 131, a second transmission gear 132, and a third transmission gear 133. The first transmission gear 131 is disposed at the output end of the drive assembly 120. The second transmission gear 132 is rotatably disposed on the frame 110 and meshes with the first transmission gear 131. The third transmission gear 133 is coaxially disposed with the second transmission gear 132 and rotates with the second transmission gear 132. The third transmission gear 133 meshes with the arc-shaped rack 141.

[0088] The first transmission gear 131 is located at the output end of the reducer 122 and is rotatably mounted on the frame 110. The second transmission gear 132 is located above the first transmission gear 131 and is rotatably mounted on the frame 110. The second transmission gear 132 meshes with the first transmission gear 131. The third transmission gear 133 is coaxially arranged with the second transmission gear 132 and meshes with the arc-shaped rack 141.

[0089] When the drive motor 121 drives the reducer 122 to rotate the first transmission gear 131, the first transmission gear 131 drives the second transmission gear 132 to rotate through the meshing relationship. Then the second transmission gear 132 drives the coaxial third transmission gear 133 to rotate. When the third transmission gear 133 rotates, it can drive the arc rack 141 to move, so that the arc rack 141 can extend or retract the frame 110, thereby driving the waist bridge plate to rise or fall.

[0090] See Figure 2 , Figures 4 to 7 In one embodiment, the first transmission gear 131 and the second transmission gear 132 are 45° helical involute gears, and the third transmission gear 133 is a spur gear. The teeth on the arc-shaped rack 141 are spur teeth and mesh with the third transmission gear 133. That is, the teeth on the first transmission gear 131 and the second transmission gear 132 are 45° involute helical teeth. This improves the transmission accuracy of the first transmission gear 131 and the second transmission gear 132 and reduces transmission noise.

[0091] Meanwhile, the first transmission gear 131 and the second transmission gear 132, which are 45° helical involute gears, can also change the direction of power transmission, avoiding excessive space occupation by the transmission assembly 130 along the axial direction of the first transmission gear 131, and reducing the length dimension of the frame 110, so that the third transmission gear 133 can mesh with the arc-shaped rack 141. Furthermore, the teeth on the arc-shaped rack 141 are spur teeth, and correspondingly, the third transmission gear 133 is a spur gear. In this way, while ensuring the smooth movement of the arc-shaped rack 141 driven by the third transmission gear 133, the machining difficulty of the arc-shaped rack 141 can also be reduced.

[0092] Of course, in another embodiment, the first transmission gear 131 and the second transmission gear 132 are bevel gears, the third transmission gear 133 is a spur gear, and the teeth on the arc-shaped rack 141 are spur teeth that mesh with the third transmission gear 133. In this embodiment, the first transmission gear 131 and the second transmission gear 132 can be bevel gears. In this way, the first transmission gear 131 and the second transmission gear 132, which are bevel gears, can also change the direction of power transmission, avoid the transmission assembly 130 occupying too much space along the axial direction of the first transmission gear 131, and reduce the length dimension of the frame 110 so that the third transmission gear 133 can mesh with the arc-shaped rack 141.

[0093] In another embodiment, the first transmission gear 131 is a worm, the second transmission gear 132 is a worm wheel meshing with the worm, and the third transmission gear 133 is a spur gear. The teeth on the arc-shaped rack 141 are spur teeth and mesh with the third transmission gear 133. In this embodiment, the first transmission gear 131 and the second transmission gear 132 can be a worm gear transmission. In this way, the first transmission gear 131 and the second transmission gear 132, which are worm gears, can also change the direction of power transmission, avoid the transmission assembly 130 occupying too much space along the axial direction of the first transmission gear 131, reduce the length dimension of the frame 110, and enable the third transmission gear 133 to mesh with the arc-shaped rack 141.

[0094] See Figure 2 , Figures 4 to 7 In another embodiment of this application, the transmission assembly 130 includes a first transmission gear 131 and a second transmission gear 132. The first transmission gear 131 is disposed at the output end of the drive assembly 120, and the second transmission gear 132 is rotatably disposed on the frame 110 and meshes with the first transmission gear 131 and the arc-shaped rack 141. The first transmission gear 131 and the second transmission gear 132 are 45° helical involute gears, and the teeth of the arc-shaped rack 141 are 45° involute helical teeth. In this embodiment, because the teeth of the first transmission gear 131, the second transmission gear 132, and the arc-shaped rack 141 are 45° involute helical teeth, the third transmission gear 133 is omitted compared to the above embodiment. That is, two transmission gears are disposed between the arc-shaped rack 141 and the reducer 122.

[0095] Thus, when the drive motor 121 drives the reducer 122 to rotate the first transmission gear 131, the first transmission gear 131 drives the second transmission gear 132 to rotate through meshing. The rotation of the second transmission gear 132 then drives the arc-shaped rack 141 to move, allowing it to extend or retract from the frame 110, thereby raising or lowering the waist bridge plate. This improves the transmission accuracy between gears, reduces transmission noise, and allows the second transmission gear 132, with its 45° helical involute teeth, to simultaneously mesh with both the first transmission gear 131 and the arc-shaped rack 141, reducing the number of gears and lowering costs.

[0096] In one embodiment, the base circle radius of the arc-shaped rack 141 is 5 to 10 times the base circle radius of the third transmission gear 133. This forms a gear pair with a large transmission ratio between the third transmission gear 133 and the arc-shaped rack 141, ensuring sufficient thrust and travel for the waist bridge plate. Simultaneously, it reduces the space occupied by the arc-shaped rack 141 and the third transmission gear 133, thereby reducing the overall size of the waist bridge structure 100.

[0097] See Figures 2 to 7 Thus, the lumbar bridge structure 100 of this application uses a first transmission gear 131 and a second transmission gear 132 arranged with staggered axes to transmit power. At the same time, the lumbar bridge plate is driven to move through the meshing of the third transmission gear 133 and the arc-shaped rack 141, realizing the lifting and lowering of the lumbar bridge plate. This can ensure that sufficient thrust and movement stroke are provided for the lumbar bridge plate. At the same time, it can also reduce the space occupied by the arc-shaped rack 141 and the third transmission gear 133, thereby reducing the overall size of the lumbar bridge structure 100, thus reducing the space occupied by the lumbar bridge structure 100 on the operating table and avoiding interference with other components on the operating table.

[0098] This application also provides an operating table, including a bed body and a lumbar bridge structure 100 as described in any of the above embodiments. The lumbar bridge structure 100 is located in the middle region of the bed body. A frame 110 is mounted on the bed body. A drive assembly 120 drives an arc-shaped rack 141 via a transmission assembly 130 to extend or retract the lumbar bridge plate from the bed body. The drive assembly 120 drives the transmission assembly 130 to extend or retract the arc-shaped rack 141 from the frame 110, so that the lumbar bridge plate extends or retracts relative to the bed body to meet surgical needs. The operating table of this application, using the lumbar bridge structure 100 of the above embodiments, can ensure sufficient thrust and travel for the lumbar bridge plate. Simultaneously, it can reduce the space occupied by the arc-shaped rack 141 and the third transmission gear 133, thereby reducing the overall size of the lumbar bridge structure 100 and the space occupied by the lumbar bridge structure 100 on the operating table, avoiding interference with other components on the operating table.

[0099] 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.

[0100] 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. A waist bridge structure, characterized in that, include: frame; The drive assembly is mounted on the rack; A transmission assembly is rotatably mounted on the frame and is drively connected to the output end of the drive assembly; The output component includes an arc-shaped rack, which is movably disposed on the frame and meshes with the transmission component, the transmission component being capable of driving one end of the arc-shaped rack to extend out of or move into the frame; as well as The waist bridge plate is connected to one end of the arc-shaped rack and moves with the arc-shaped rack.

2. The waist bridge structure according to claim 1, characterized in that, The waist bridge structure also includes a guide component. The arc-shaped rack includes an arc-shaped mounting body and an arc-shaped rack portion. The rack portion is disposed on the side of the mounting body and extends toward the direction of the transmission component. The guide component is rotatably disposed on the frame and located on the periphery of the mounting body. The guide component is movable and abuts against the mounting body to guide and limit the movement of the arc-shaped rack.

3. The waist bridge structure according to claim 2, characterized in that, The guiding assembly includes a first guide member and a second guide member disposed on the frame. The first guide member and the second guide member are respectively disposed on both sides of the mounting body along the axial direction of the arc-shaped rack, and rotatably abut against the side of the mounting body.

4. The waist bridge structure according to claim 3, characterized in that, The guiding assembly includes a third guide and a fourth guide disposed on the frame. The third guide is located on the side of the arc-shaped rack away from the transmission assembly and rotatably abuts against the mounting body. The fourth guide is located on the side of the arc-shaped rack facing the transmission assembly and rotatably abuts against the mounting body. The fourth guide and the transmission assembly have a preset distance along the circumference.

5. The waist bridge structure according to claim 4, characterized in that, The first guide member, the second guide member, the third guide member, and the fourth guide member are support bearings with support shafts. The inner ring of the support bearing is fixed to the frame through the support shaft, and the outer ring of the support bearing abuts against the mounting body. Alternatively, the first guide, the second guide, the third guide, and the fourth guide may be rollers with fixed shafts, the fixed shafts being fixed to the frame, and the rollers being rotatably disposed on the fixed shafts and abutting against the mounting body.

6. The waist bridge structure according to claim 4, characterized in that, The frame is provided with a receiving slot and a moving opening. The moving opening connects the receiving slot to the external environment. The receiving slot is used to receive the arc-shaped rack. The arc-shaped rack extends out of or moves into the receiving slot through the moving opening. The first guide, the second guide, the third guide, and the fourth guide are at least partially located in the receiving groove.

7. The waist bridge structure according to claim 6, characterized in that, The first guide, the second guide, the third guide, and the fourth guide are disposed near the movement opening; And / or, the number of the first guide, the second guide, the third guide, and the fourth guide is at least two, and they are spaced apart circumferentially along the arc-shaped rack.

8. The waist bridge structure according to any one of claims 1 to 7, characterized in that, The transmission assembly includes a first transmission gear, a second transmission gear, and a third transmission gear. The first transmission gear is disposed at the output end of the drive assembly. The second transmission gear is rotatably located on the side of the first transmission gear facing the arc-shaped rack and meshes with the first transmission gear. The third transmission gear is coaxially disposed with the second transmission gear and rotates with the second transmission gear. The third transmission gear meshes with the arc-shaped rack.

9. The waist bridge structure according to claim 8, characterized in that, The first transmission gear and the second transmission gear are 45° helical involute gears; The third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear.

10. The waist bridge structure according to claim 8, characterized in that, The first transmission gear and the second transmission gear are bevel gears, the third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear; Alternatively, the first transmission gear is a worm, the second transmission gear is a worm wheel meshing with the worm, the third transmission gear is a spur gear, and the teeth on the arc-shaped rack are straight teeth that mesh with the third transmission gear.

11. The waist bridge structure according to claim 8, characterized in that, The base circle radius of the arc-shaped rack is 5 to 10 times the base circle radius of the third transmission gear.

12. The waist bridge structure according to any one of claims 1 to 7, characterized in that, The transmission assembly includes a first transmission gear and a second transmission gear. The first transmission gear is disposed at the output end of the drive assembly, and the second transmission gear is rotatably located on the side of the first transmission gear facing the arc-shaped rack, and meshes with the first transmission gear and the arc-shaped rack. Wherein, the first transmission gear and the second transmission gear are 45° helical involute gears, and the teeth of the arc-shaped rack are 45° involute helical teeth.

13. An operating table, characterized in that, The device includes a bed and a waist bridge structure as described in any one of claims 1 to 12, wherein the waist bridge structure is located in the middle region of the bed, the frame is mounted on the bed, and the drive assembly drives the arc-shaped rack through the transmission assembly to cause the waist bridge plate to extend or retract from the bed.

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