Multifunctional support for surgery

Abstract

The application discloses a multifunctional support for surgery, which comprises a main plate, first and second hanging plates which are detachably connected to two ends of the main plate respectively, and an electric lifting device which is detachably arranged on a side of the main plate away from the first hanging plate. In use, the first hanging plate can send a control signal to the electric lifting device through the remote control device to perform a lifting action, and after the first hanging plate reaches a specified position, locking is performed to complete height positioning of the first hanging plate.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a multifunctional surgical stent. Background Technology

[0002] In cardiac and other thoracic surgeries, the patient's arms are typically positioned above a hand support suspended from the metal side panel of the operating table for procedures such as arterial and venous punctures. After the puncture and before the surgery begins, the hand support must be removed, the patient's hands brought to their sides, and a fixed slider must be used to secure an anesthesia shield around the patient's head and neck. Sterile surgical drapes are then placed to strictly separate the surgical and anesthesia management areas. The pre-operative preparation phase is the busiest time of a surgery, requiring a significant amount of work from the circulating nurse. Furthermore, the process of removing the hand support and installing the anesthesia shield carries a high risk of the patient's limbs dislodging under anesthesia, potentially causing injury.

[0003] Based on the background of application number CN202421184641.2, the inventors further proposed an optimized solution. This solution innovates the original tray into a multi-functional bracket. This bracket can be used to support hands, and can also be electrically raised and lowered to support legs according to actual needs. When not in use, it can be retracted and folded, achieving a multi-functional use effect. Utility Model Content

[0004] To address or partially address the aforementioned problems, this application provides a multifunctional surgical stent, comprising: The motherboard has a first mounting plate and a second mounting plate detachably connected to its two ends, with the first mounting plate and the second mounting plate arranged parallel to each other. An electric lifting device, wherein the electric lifting device is detachably mounted on the side of the main board away from the first mounting plate; A remote control device is connected to the electric lifting device via a signal connection and is used to control the lifting action of the electric lifting device. In use, the first mounting plate can send a control signal to the electric lifting device through the remote control device to perform lifting and lowering actions. After the first mounting plate reaches the designated position, it is locked to complete the height positioning of the first mounting plate.

[0005] This application provides a multifunctional surgical support: the main board and the first mounting plate are connected by a comprehensive connecting plate, and the outer surface of the first mounting plate is arc-shaped.

[0006] This application provides a multifunctional surgical support: the electric lifting device includes a lifting fixing seat, a lifting rod, and a lifting rod locking seat. The lifting fixing seat is fixedly mounted on one end of the main board near the first hanging plate by bolts. The lifting rod locking seat is fixedly mounted on the other end of the main board. One end of the lifting rod is connected to the lifting rod locking seat, and the other end of the lifting rod passes through the lifting fixing seat and abuts against the integrated connecting plate. The lifting rod moves the first hanging plate up and down to adjust the height of the first hanging plate.

[0007] In this application, a multifunctional surgical stent is provided with a stent locking seat between the integrated connecting plate and the lifting and fixing seat. The stent locking seat is provided with an internal threaded hole and an auxiliary stent. One end of the auxiliary stent is provided with an external thread. The stent locking seat and the stent are detachably connected by the cooperation of the external thread and the internal threaded hole. The auxiliary support is horizontally positioned with the first hanging plate to support auxiliary equipment during the surgical procedure.

[0008] This application provides a multifunctional surgical stent: the auxiliary stent includes at least two nested rod structures, the length of the auxiliary stent is adjusted by the relative extension and retraction of the rod structures, and the rod structures are provided with locking members for fixing their relative positions.

[0009] This application provides a multifunctional surgical support: a third hanging plate is provided below the second hanging plate, and a thrust bearing is provided between the second hanging plate and the third hanging plate. The thrust bearing enables the third hanging plate to rotate smoothly relative to the second hanging plate to meet different angle requirements during the surgical process. Furthermore, the second hanging plate and the third hanging plate are connected by a positioning screw. One end of the positioning screw is fixedly connected to the second hanging plate, and the other end passes through the through hole on the third hanging plate and is connected to the third hanging plate by a locking nut, which is used to fix the relative position of the second hanging plate and the third hanging plate.

[0010] This application provides a multifunctional surgical support: the positioning screw and the thrust bearing are connected by a locking nut, the locking nut is used to axially fix the positioning screw and the thrust bearing, and the locking nut is provided with an indexing locking buckle on its side, the indexing locking buckle can adjust the relative position of the second hanging plate and the third hanging plate and lock them according to actual needs.

[0011] In this application, a multifunctional surgical support is provided: the third mounting plate rotates 360 degrees relative to the second mounting plate.

[0012] This application provides a multifunctional surgical support: a guide rail locking plate is provided on one side of the third hanging plate, the guide rail locking plate is perpendicular to the extended portion of the third hanging plate, and the guide rail locking plate is provided with a connecting hole for connecting an external guide rail or fixing other surgical auxiliary components.

[0013] This application provides a multifunctional surgical support: an adjustment plate is provided at the end of the guide rail locking plate away from the third hanging plate, and the adjustment plate is fixed to the guide rail locking plate by locking screws. Beneficial effects

[0014] This application integrates the hand support frame and lifting function into a single bracket by combining a detachable hanging plate structure, an electric lifting device, and a remote control device. This enables rapid switching between hand and leg support functions and precise height positioning during surgery, eliminating the cumbersome operation of repeatedly disassembling and installing the hand support frame and anesthesia screen frame in traditional solutions. At the same time, remote control reduces the risk of intraoperative contamination and improves the safety and efficiency of the surgical preparation stage. Attached Figure Description

[0015] Figure 1 A front view of a surgical multifunctional stent provided in this application; Figure 2 A partially enlarged view of a multifunctional surgical stent provided in this application; Figure 3 A rear view of a surgical multifunctional stent provided for this application; 1. Motherboard; 2. First hanging board; 3. Second hanging board; 4. Electric lifting device; 41. Lifting fixing seat; 42. Lifting rod; 43. Lifting rod locking seat; 5. Integrated connection plate; 6. Bracket locking seat; 61. Auxiliary bracket; 7. Third mounting plate; 71. Thrust bearing; 72. Positioning screw; 73. Locking nut; 74. Indexing lock buckle; 75. Guide rail locking plate; 76. Adjusting plate; 77. Locking screw; Detailed Implementation

[0016] The following description provides numerous specific details to offer a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with this application.

[0017] To address the aforementioned issues, a multifunctional surgical support is proposed, comprising a mainboard 1, an electric lifting device 4, and a remote control device.

[0018] The motherboard 1 has a first mounting plate 2 and a second mounting plate 3 detachably connected to its two ends, and the first mounting plate 2 and the second mounting plate 3 are arranged in parallel. The electric lifting device 4 is detachably arranged on the side of the motherboard 1 away from the first mounting plate 2. The remote control device is signal connected to the electric lifting device 4 and is used to control the lifting action of the electric lifting device 4. When it is necessary to adjust the height of the first hanging plate 2, a control signal is sent to the electric lifting device 4 through the remote control device to control the electric lifting device 4 to perform the lifting action. After the first hanging plate 2 reaches the designated position, it is locked to complete the height positioning of the first hanging plate 2.

[0019] Main board 1 refers to the flat plate component that serves as a support structure. It can be made of metal or high-strength composite material and is used to support the hanging plate and the electric lifting device 4. The design of detachable connection at both ends enables the quick installation and removal of the first hanging plate 2 and the second hanging plate 3, which can be switched to meet different support needs during surgery.

[0020] The remote control device refers to a wireless signal control device, which can specifically use Bluetooth, infrared or radio frequency modules to communicate with the electric lifting device 4. The lifting action is triggered by remote operation, avoiding the risk of contamination caused by direct contact with the stent during the operation, while improving adjustment efficiency.

[0021] refer to Figure 1 The motherboard 1 and the first mounting plate 2 are connected by the integrated connecting plate 5, and the outer surface of the first mounting plate 2 is arc-shaped.

[0022] The integrated connecting plate 5 can be trapezoidal or rectangular in shape, with a thickness ranging from 3 to 5 mm, and is made of aluminum alloy or carbon fiber composite material. The integrated connecting plate 5 is fixed to the main plate 1 by bolts, with bolt hole spacing of 50-80 mm, and rubber gaskets are installed inside the holes to reduce vibration. The radius of curvature of the arc-shaped outer surface of the first hanging plate 2 can range from 100 to 200 mm, and the arc surface is covered with a flexible silicone layer with a thickness of 2-3 mm. The contact surface between the integrated connecting plate 5 and the lifting rod 42 of the electric lifting device 4 is set as a guide surface with an inclination angle of 5-10 degrees, and rollers are installed at the end of the lifting rod 42 to reduce frictional resistance.

[0023] Specifically, the integrated connecting plate 5, as a transition structure, is positioned between the main plate 1 and the first hanging plate 2, and its internal reinforcing ribs enhance bending strength. When the electric lifting device 4 drives the lifting rod 42 to perform lifting and lowering actions, the lifting rod 42 contacts the inclined guide surface of the integrated connecting plate 5 through rollers, converting the vertical lifting force into an oblique thrust, thereby driving the first hanging plate 2 to move along an arc-shaped trajectory. During this process, the integrated connecting plate 5 reduces the peak load at the connection point by dispersing stress, avoiding the deformation risk caused by rigid connections. When the arc-shaped outer surface of the first hanging plate 2 contacts the patient's limb, the silicone layer undergoes elastic deformation, allowing the curvature of the arc surface to adapt to the limb contour, increasing the contact area to 1.5-2 times that of the planar design. The silicone layer surface is provided with anti-slip textures, with a texture depth of 0.5 mm and a spacing of 3 mm, which enhances friction and prevents limb slippage. After the lifting rod 42 completes height adjustment, the locking mechanism acts on the contact surface between the integrated connecting plate 5 and the lifting fixing seat 41, achieving position locking through friction, with a locking torque range of 5-8 N·m.

[0024] In addition, the electric lifting device 4 may include a lifting fixing seat 41, a lifting rod 42, and a lifting rod 42 locking seat. The lifting fixing seat 41 can be fixedly mounted on one end of the main board 1 near the first hanging plate 2 by bolts, and the lifting rod 42 locking seat is fixedly mounted on the other end of the main board 1. One end of the lifting rod 42 is connected to the lifting rod 42 locking seat, and the other end passes through the lifting fixing seat 41 and abuts against the integrated connecting plate 5. The lifting rod 42 drives the first hanging plate 2 to move up and down, thereby adjusting the height of the first hanging plate 2.

[0025] Specifically, the lifting mounting base 41 can be made of metal, such as stainless steel or aluminum alloy, to ensure sufficient strength and durability. The bottom of the lifting mounting base 41 has multiple bolt holes through which bolts are used to securely fix it to the main board 1. The lifting rod 42 can be a hollow metal tube with an internal electric mechanism for its extension and retraction. The locking seat of the lifting rod 42 can be made of the same material as the lifting mounting base 41 and has a matching slot or thread structure for fixing one end of the lifting rod 42.

[0026] Furthermore, the contact area between the lifting rod 42 and the integrated connecting plate 5 can be designed as a spherical contact to adapt to the arc-shaped structure of the outer surface of the first hanging plate 2. This design ensures that the lifting force can be evenly transmitted to the first hanging plate 2 during the lifting process, avoiding stress concentration or movement jamming caused by mismatch of contact surfaces.

[0027] Therefore, when it is necessary to adjust the height of the first hanging plate 2, a control signal is sent to the electric lifting device 4 through the remote control device. After receiving the signal, the electric lifting device 4 drives the lifting rod 42 to extend and retract. The extension and retraction of the lifting rod 42 drives the integrated connecting plate 5 to move up and down, thereby achieving precise adjustment of the height of the first hanging plate 2. After the adjustment is completed, the position of the lifting rod 42 can be locked by the locking seat of the lifting rod 42 to ensure that the first hanging plate 2 is kept at the required height.

[0028] In addition, a bracket locking seat 6 is provided between the integrated connecting plate 5 and the lifting fixed seat 41. The bracket locking seat 6 is provided with an internal threaded hole and an auxiliary bracket 61. One end of the auxiliary bracket 61 is provided with an external thread. The bracket locking seat 6 and the bracket are detachably connected by the cooperation of the external thread and the internal threaded hole. The auxiliary support 61 is horizontally positioned with the first mounting plate 2 to support auxiliary equipment during surgery. The support locking seat 6 is located in the connection area between the integrated connecting plate 5 and the lifting fixing seat 41, with its internal threaded hole axis parallel to the extension direction of the first mounting plate 2. The external thread and internal threaded hole of the auxiliary support 61 form a helical pair. The thread profile can be triangular or trapezoidal, with a pitch range of 1-3 mm, and the thread engagement length is at least 1.5 times the nominal thread diameter. The diameter of the auxiliary support 61's rod body is clearance-fitted with the internal threaded hole diameter, with a clearance not exceeding 0.1 mm. The thickness of the support locking seat 6 is designed to be more than twice the depth of the internal threaded hole to ensure threaded connection strength. The end of the auxiliary support 61 can be machined into a hexagonal or knurled grip for easy manual tightening.

[0029] Specifically, when the auxiliary support 61 needs to be installed, align the end of the auxiliary support 61 with the internal threaded hole of the support locking seat 6, and rotate it to engage the external thread with the internal threaded hole until the auxiliary support 61 is fully screwed in and reaches the preset torque value. At this time, the axis of the auxiliary support 61 remains parallel to the plane of the first hanging plate 2, forming a horizontal cantilever structure. The monitor or instrument tray that needs to be supported during the operation can be placed directly on the extension end of the auxiliary support 61. The support locking seat 6, through its double fixation with the lifting and fixing seat 41 and the integrated connecting plate 5, transfers the load to the main board 1 structure. When disassembling, the auxiliary support 61 can be quickly disconnected by rotating it in the opposite direction. The internal threaded hole of the support locking seat 6 is sealed by a dust cover. The horizontally set auxiliary support 61 and the first hanging plate 2 driven by the electric lifting device 4 form a spatial complement, avoiding equipment stacking that interferes with the surgical operation area. The axial preload of the threaded connection can prevent the auxiliary support 61 from axially shifting under load, while allowing fine adjustment of the support angle by adjusting the screw-in depth. The design of the bracket locking seat 6 allows it to utilize the rigid support of the lifting fixing seat 41 while avoiding interference with the vertical movement trajectory of the lifting rod 42.

[0030] In addition, the auxiliary support 61 may include at least two nested rod structures, and the length of the auxiliary support 61 can be adjusted by the relative extension and contraction of the rod structures. The rod structures are provided with locking elements for fixing their relative positions.

[0031] Among them, the nested rod structure can adopt a multi-segment sleeve design, for example, the inner rod and the outer tube are connected by a sliding pair, which allows axial movement while maintaining radial constraint.

[0032] The locking mechanism can be a threaded knob, spring pin, or eccentric cam mechanism. For example, a threaded knob secures the rod by pressing against a friction surface, and the locking torque range can be set from 0.5 to 3 N·m to meet different load requirements. The extension stroke of the rod structure can cover an adjustment range of 50-300 mm, and the specific length can be determined using graduated markings. Guide grooves and limiting protrusions can be provided at the nested connection to prevent the rod from completely disengaging and ensure coaxial extension and retraction.

[0033] Specifically, when adjusting the length of the auxiliary bracket 61, the operator first loosens the locking mechanism to release the mechanical constraint, and then slides the inner rod or outer tube axially to the target position. At this time, the rod structure maintains overall rigidity through nested connections, preventing bending deformation due to unilateral force. After adjustment, rotating the locking mechanism generates radial pressure, creating stable friction between the contact surfaces of adjacent rods. For example, rotating the threaded knob 90 degrees increases the locking torque by 0.8 N·m until the relative movement of the rods is completely restricted.

[0034] refer to Figure 2 A third hanging plate 7 is provided below the second hanging plate 3. A thrust bearing 71 is provided between the second hanging plate 3 and the third hanging plate 7. The thrust bearing 71 enables the third hanging plate 7 to rotate smoothly relative to the second hanging plate 3 to meet the different angle requirements during the operation. The second hanging plate 3 and the third hanging plate 7 are connected by a positioning screw 72. One end of the positioning screw 72 is fixedly connected to the second hanging plate 3, and the other end passes through the through hole on the third hanging plate 7 and is connected to the third hanging plate 7 by a locking nut 73, which is used to fix the relative position of the second hanging plate 3 and the third hanging plate 7.

[0035] The thrust bearing 71 is designed to withstand the axial load generated when the third mounting plate 7 rotates. Ball bearings or cylindrical rollers can be filled between its inner and outer rings. The bearing thickness is controlled within the range of 2-5 mm to reduce structural space occupation. The positioning screw 72 adopts a trapezoidal thread design, with the thread helix angle set at 5-10 degrees to balance self-locking performance and adjustment efficiency. The clearance between the through-hole diameter and the screw outer diameter is limited to 0.1-0.3 mm to prevent radial offset. A rubber gasket can be added to the end face of the locking nut 73 to increase the coefficient of friction. The nut tightening torque is set at 3-5 N·m to ensure uniform distribution of clamping force.

[0036] Specifically, when the angle of the third mounting plate 7 needs to be adjusted, the thrust bearing 71 allows the third mounting plate 7 to rotate 360 ​​degrees around the axis of the second mounting plate 3. During the rotation, the balls or rollers convert sliding friction into rolling friction, reducing the rotational resistance to within the range of 0.1-0.3 N·m. After the angle adjustment is completed, the positioning screw 72 passes through the through hole of the third mounting plate 7 to form an axial constraint. By rotating the locking nut 73, it moves along the screw thread towards the second mounting plate 3, forcing a compressive stress of 0.5-1.2 MPa to be generated on the contact surface between the third mounting plate 7 and the second mounting plate 3. This compressive stress also acts on the inner and outer rings of the thrust bearing 71, eliminating the internal clearance of the bearing and locking the third mounting plate 7 at the target angle position. In the thus formed dual fixing mechanism, the thrust bearing 71 bears the axial load during rotation, while the combination of the positioning screw 72 and the locking nut 73 resists the radial offset torque, so that the third mounting plate 7 can still maintain an angle deviation of less than 0.5 degrees when bearing a 10-15 kg surgical instrument load. Compared to the traditional single-bolt locking structure, this solution increases the torsional resistance by 2-3 times after angle adjustment, while achieving compatibility between stepless adjustment and stable fixation.

[0037] As a preferred embodiment, the solution of this application is implemented as follows: A third hanging plate 7 is disposed below the second hanging plate 3, and a thrust bearing 71 is installed between the two. The thrust bearing 71 consists of an inner ring, an outer ring, and rolling elements. The inner ring is fixed to the second hanging plate 3, and the outer ring is connected to the third hanging plate 7. The thrust bearing 71 enables the third hanging plate 7 to rotate smoothly relative to the second hanging plate 3, meeting the different angle requirements during surgery. The second hanging plate 3 and the third hanging plate 7 are connected by a positioning screw 72. One end of the positioning screw 72 is welded and fixed to the second hanging plate 3, and the other end passes through a through hole on the third hanging plate 7. The diameter of the through hole is slightly larger than the diameter of the screw, allowing the third hanging plate 7 to rotate around the axis of the screw. The end of the screw is provided with an external thread, which is connected to the third hanging plate 7 by a locking nut 73. After adjusting the angle of the third hanging plate 7, tightening the locking nut 73 can fix the relative position of the second hanging plate 3 and the third hanging plate 7.

[0038] In addition, the positioning screw 72 and the thrust bearing 71 can be connected by a locking nut 73. The locking nut 73 is used to fix the positioning screw 72 and the thrust bearing 71 axially. The locking nut 73 is provided with an indexing locking buckle 74 on its side. The indexing locking buckle 74 can adjust the relative position of the second hanging plate 3 and the third hanging plate 7 and lock them according to actual needs.

[0039] The locking nut 73 adopts a flange structure, and its contact surface can be set as a serrated or knurled pattern, such as a 60° staggered tooth profile with a tooth depth of 0.5-1.2mm, to achieve axial self-locking by increasing the friction coefficient. The indexing locking buckle 74 includes annularly distributed positioning teeth and elastic buckles. The number of positioning teeth can be 12-24, corresponding to an angular interval of 5°-30°. The elastic buckle is made of spring steel sheet, and its elastic modulus can be controlled within the range of 190-210GPa. The indexing locking buckle 74 and the locking nut 73 are engaged by a guide groove on the side. The guide groove depth is 2-3mm, and the width forms a clearance fit with the thickness of the claw of the indexing locking buckle 74, with the clearance controlled within 0.05-0.1mm. When the third mounting plate 7 rotates, the raceway structure of the thrust bearing 71 allows the rotational resistance to remain within the range of 0.5-1.2 N·m. When the positioning teeth of the indexing locking buckle 74 rotate to the preset angle, the elastic buckle automatically engages in the tooth groove to generate tactile feedback. At this time, continuing to rotate 0.5°-1° will complete the locking.

[0040] Specifically, when adjusting the angle of the third mounting plate 7, the operator rotates it with one hand to the target direction. The thrust bearing 71 reduces rotational resistance, making angle adjustment easier. When the elastic latch of the indexing locking buckle 74 contacts the positioning teeth, tactile feedback indicates that the preset position is approaching. Fine-tuning continues until the latch is fully engaged in the tooth groove. At this point, the third mounting plate 7 is mechanically limited and cannot rotate freely. The axial preload of the locking nut 73 is evenly transmitted to the thrust bearing 71 through the flange surface, eliminating bearing play while maintaining rotational flexibility. The intervals of the indexing locking buckle 74 match the standard angles of surgical instruments; for example, a 15° interval corresponds to the clamping angle of commonly used instruments, and a 30° interval corresponds to the need for rapid patient positioning. This structure achieves precise angle control through indexing positioning while maintaining axial rigidity. The adjustment time can be shortened to 2-3 seconds per operation. In the locked state, it can withstand lateral loads of 50-80N without displacement, meeting the dual requirements of frequent adjustments and stable fixation during surgery.

[0041] Meanwhile, the third mounting plate 7 can rotate 3360 degrees relative to the second mounting plate.

[0042] The thrust bearing 71 is configured to allow the third mounting plate 7 to rotate freely around the axis of the positioning screw 72. The diameter of the through hole in the positioning screw 72 is larger than the diameter of the rod body, forming a clearance fit to prevent axial displacement of the third mounting plate 7 during rotation. The indexing locking buckle 74 can be configured with at least 36 equally divided graduations, each corresponding to a 10-degree angular displacement. The thread pitch of the locking nut 73 is limited to 0.5-1.0 mm to ensure that the rotational positioning accuracy is controlled within ±2 degrees. The raceway diameter of the thrust bearing 71 is designed to be 15-25 mm, with 20-30 balls, each ball diameter controlled at 2-3 mm, to balance load-bearing capacity and rotational flexibility. The contact surface between the second mounting plate 3 and the third mounting plate 7 is provided with an annular groove with a depth of 1-2 mm to accommodate the movement trajectory of the balls in the thrust bearing 71.

[0043] Specifically, when the angle of the guide rail locking plate 75 needs to be adjusted, the locking nut 73 is loosened, causing the indexing locking buckle 74 to disengage from the limiting groove of the positioning screw 72. At this time, the third mounting plate 7 can rotate freely 360 degrees around the axis of the positioning screw 72. The balls of the thrust bearing 71 roll in the annular groove, converting the rotational friction of the third mounting plate 7 into rolling friction, reducing the rotational operating torque to the range of 0.5-1.2 N·m. When rotated to the target angle, the ratchet structure of the indexing locking buckle 74 engages with the limiting groove of the positioning screw 72, and the locking nut 73 is tightened to a preload of 3-5 N·m. At this time, the third mounting plate 7 and the second mounting plate 3 form a rigid connection.

[0044] In addition, a guide rail locking plate 75 is provided on one side of the third hanging plate 7. The guide rail locking plate 75 is perpendicular to the extended part of the third hanging plate 7. The guide rail locking plate 75 is provided with a connection hole for connecting an external guide rail or fixing other surgical auxiliary components.

[0045] The vertical arrangement of the guide rail locking plate 75 and the extension of the third mounting plate 7 can be achieved through welding or integral molding. The included angle error between them must be controlled within ±2° to ensure structural stability. Multiple connection holes can be provided on the surface of the guide rail locking plate 75, such as standard holes with a diameter of 6mm or 8mm. The hole spacing can be set to 20mm to accommodate auxiliary components of different sizes. Threads can be machined into the inner walls of the connection holes, or a quick-clamping mechanism can be provided to achieve tool-less installation. The thickness of the guide rail locking plate 75 can be designed to be 3-5mm, and stainless steel is selected as the material to balance lightweight and rigidity requirements.

[0046] Specifically, when the third mounting plate 7 rotates to the target angle via the thrust bearing 71, its extension drives the guide rail locking plate 75 to adjust its spatial orientation synchronously. Since the guide rail locking plate 75 is perpendicular to the plane of rotation, its mounting surface is always in a non-overlapping area, preventing collisions with the operating table or patient's limbs. The connection hole directly fixes the anesthesia screen frame or sterile drape support through a standardized interface. During installation, only the connecting rod of the auxiliary component needs to be inserted into the hole and the locking buckle tightened, taking no more than 10 seconds. The vertical connection between the guide rail locking plate 75 and the third mounting plate 7 forms an L-shaped support structure. When bearing external equipment loads, the torque is transmitted through the third mounting plate 7 to the positioning screw 72 and the thrust bearing 71, dispersing stress concentration.

[0047] The indexing locking buckle 74, in conjunction with the locking nut 73, maintains a constant rotation angle, ensuring that the guide rail locking plate 75 does not deflect under load. Experimental data shows that the maximum deformation of this structure is less than 0.5 mm when a 15 kg vertical load is applied, meeting the stability requirements of surgical auxiliary equipment.

[0048] See Figure 3 An adjustment plate 76 is provided at the end of the guide rail locking plate 75 away from the third hanging plate 7. The adjustment plate 76 is fixed to the guide rail locking plate 75 by a locking screw 77.

[0049] The adjusting plate 76 can be adjusted in position along the extension direction of the guide rail locking plate 75, and its length range can cover an adjustment range of 50-200 mm. For example, multiple adjustable positions can be achieved by setting multiple spaced threaded holes. The thread diameter of the locking screw 77 matches the threaded hole on the adjusting plate 76, for example, using an M4-M8 screw. The tightening torque generates axial pressure to form a rigid connection between the adjusting plate 76 and the guide rail locking plate 75. The contact surface between the adjusting plate 76 and the guide rail locking plate 75 can be equipped with anti-slip textures or a rubber pad to enhance frictional resistance and prevent slippage. The rotatable characteristic of the third mounting plate 7 allows the adjusting plate 76 to extend in the horizontal or vertical direction, and the extension angle of the adjusting plate 76 can be adjusted to adapt to the installation direction of the external guide rail.

[0050] Specifically, when connecting external guide rails or auxiliary components of different sizes, the adjusting plate 76 can be stretched outward along the guide rail locking plate 75 to the target length, for example, extending 80 mm to match a wider guide rail spacing. Then, the locking screw 77 is passed through the corresponding threaded hole on the adjusting plate 76 and screwed into the fixing hole of the guide rail locking plate 75. The axial pressure generated by the thread engagement ensures a tight fit between the two. During surgical procedures, the preload of the locking screw 77 can counteract vibrations or displacements caused by external forces, ensuring connection stability. The extension angle of the adjusting plate 76 can be adjusted via the rotation function of the third hanging plate 7. For example, the adjusting plate 76 can be rotated 90 degrees and fixed to be perpendicular to the side of the operating table to accommodate vertically installed auxiliary equipment. This structure, while maintaining the original function of the guide rail locking plate 75, achieves rapid adaptation of installation position and angle through modular adjustment design, while ensuring rigid support through a mechanical locking mechanism to avoid positioning deviations caused by equipment shaking during surgery.

[0051] The second mounting plate 3 is folded along the axis of the main plate 1, and the third mounting plate 7 is rotated and folded around the second mounting plate 3.

[0052] Although exemplary embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above exemplary embodiments are merely illustrative and are not intended to limit the scope of this application. Various changes and modifications can be made therein by those skilled in the art without departing from the scope and spirit of this application. All such changes and modifications are intended to be included within the scope of this application as claimed in the appended claims.

Claims

1. A multifunctional surgical stent, characterized in that, include: The motherboard has a first mounting plate and a second mounting plate detachably connected to its two ends, with the first mounting plate and the second mounting plate arranged parallel to each other. An electric lifting device, wherein the electric lifting device is detachably mounted on the side of the main board away from the first mounting plate; A remote control device is connected to the electric lifting device via a signal connection and is used to control the lifting action of the electric lifting device. In use, the first mounting plate can send a control signal to the electric lifting device through the remote control device to perform lifting and lowering actions. After the first mounting plate reaches the designated position, it is locked to complete the height positioning of the first mounting plate.

2. The surgical multifunctional stent according to claim 1, characterized in that, The motherboard and the first mounting plate are connected by a comprehensive connecting plate, and the outer surface of the first mounting plate is arc-shaped.

3. The surgical multifunctional stent according to claim 2, characterized in that, The electric lifting device includes a lifting base, a lifting rod, and a lifting rod locking seat. The lifting base is fixedly mounted on the main board near one end of the first hanging plate by bolts. The lifting rod locking seat is fixedly mounted on the other end of the main board. One end of the lifting rod is connected to the lifting rod locking seat, and the other end of the lifting rod passes through the lifting base and abuts against the integrated connecting plate. The lifting rod moves the first hanging plate up and down to adjust the height of the first hanging plate.

4. A multifunctional surgical stent according to claim 3, characterized in that, A bracket locking seat is provided between the integrated connecting plate and the lifting fixed seat. The bracket locking seat is provided with an internal threaded hole and an auxiliary bracket. One end of the auxiliary bracket is provided with an external thread. The bracket locking seat and the bracket are detachably connected by the cooperation of the external thread and the internal threaded hole. The auxiliary support is horizontally positioned with the first hanging plate to support auxiliary equipment during the surgical procedure.

5. A multifunctional surgical stent according to claim 4, characterized in that, The auxiliary support includes at least two nested rod structures. The length of the auxiliary support is adjusted by the relative extension and retraction of the rod structures, and the rod structures are provided with locking components for fixing their relative positions.

6. A multifunctional surgical stent according to claim 1, characterized in that, A third hanging plate is provided below the second hanging plate, and a thrust bearing is provided between the second hanging plate and the third hanging plate. The thrust bearing enables the third hanging plate to rotate smoothly relative to the second hanging plate to meet different angle requirements during the operation. Furthermore, the second hanging plate and the third hanging plate are connected by a positioning screw. One end of the positioning screw is fixedly connected to the second hanging plate, and the other end passes through the through hole on the third hanging plate and is connected to the third hanging plate by a locking nut, which is used to fix the relative position of the second hanging plate and the third hanging plate.

7. A multifunctional surgical stent according to claim 6, characterized in that, The positioning screw and the thrust bearing are connected by a locking nut. The locking nut is used to fix the positioning screw and the thrust bearing axially. The locking nut is provided with an indexing locking buckle on its side. The indexing locking buckle can adjust the relative position of the second hanging plate and the third hanging plate and lock them according to actual needs.

8. A multifunctional surgical stent according to claim 6, characterized in that, The third mounting plate rotates 360 degrees relative to the second mounting plate.

9. A multifunctional surgical stent according to claim 6, characterized in that, A guide rail locking plate is provided on one side of the third hanging plate. The guide rail locking plate is perpendicular to the extended portion of the third hanging plate. The guide rail locking plate is provided with a connecting hole for connecting an external guide rail or fixing other surgical auxiliary components.

10. A multifunctional surgical stent according to claim 9, characterized in that, An adjustment plate is provided at the end of the guide rail locking plate away from the third hanging plate, and the adjustment plate is fixed to the guide rail locking plate by locking screws.

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