Operation lateral position upper limb multidirectional adjusting and supporting device

Abstract

The utility model discloses an operation lateral position upper limb multidirectional adjusting and supporting device, which comprises an upper limb supporting plate, a lower limb supporting plate, an upper limb supporting plate, a lower limb supporting plate, a lower limb supporting plate and a lower limb supporting plate, the upper limb supporting plate comprises a surface layer and a bottom layer, and the surface layer is positioned above the bottom layer and is a medical silica gel pressure-reducing pad; the three-axis adjusting mechanism comprises a quick-assembly connector, a lifting assembly, a first translation assembly, a second translation assembly and a second swivel joint, the quick-assembly connector is connected with one end of the lifting assembly and used for being assembled on the side face of the operating bed, and the other end of the lifting assembly is connected with one end of the first translation assembly and used for being assembled on the side face of the operating bed; the other end of the first translation assembly is connected with the second swivel joint, a swivel part of the second swivel joint is connected with one end of the second translation assembly, and the other end of the second translation assembly supports the bottom layer of the upper limb supporting plate. The device is particularly suitable for upper limb biomechanical support and nerve protection in surgical operations requiring long-time lateral position keeping and upper limbs horizontally placed on the back side of the trunk and robot minimally invasive operations.

Description

Technical Field

[0001] This utility model relates to medical devices, and more particularly to a multi-directional adjustable support device for the upper limb in the lateral decubitus position during surgery. Background Technology

[0002] In modern surgery, patients often need to be positioned in specific ways to ensure optimal field of vision and operating space. The lateral decubitus position is a common surgical position, in which the patient's upper limbs need proper support and immobilization to avoid problems such as nerve damage and circulatory disturbances.

[0003] A search revealed that Chinese Patent CN216455887U discloses a surgical positioning support for assisting patients in a lateral decubitus position, comprising: a first base plate, telescopic columns, a first support plate, a triangular fixation plate, a first strap, Velcro, a second base plate, a second support plate, and a second strap; two telescopic columns are connected between the end of the first base plate and the end of the first support plate, and a triangular fixation plate is connected at the connection point of the telescopic columns; a first strap is connected to the middle of the upper end face of the first base plate and the first support plate, thereby forming an upper limb fixation frame; two telescopic columns are connected between the end of the second base plate and the end of the second support plate, and a triangular fixation plate is also connected at the connection point of the telescopic columns; a second strap is connected to the middle of the upper end face of the second support plate, thereby forming a lower limb fixation plate.

[0004] Although the aforementioned patent provides a relatively comprehensive solution for supporting patients in the lateral decubitus position, the following technical problems still exist in practical applications:

[0005] Although the telescopic column and the second support plate can be used together to adjust the height of the upper limb, they are not flexible enough when adjusting other positions and angles of the upper limb. They cannot meet the precise adjustment requirements of the shoulder joint abduction angle when lying on the side, which increases the workload of medical staff. Utility Model Content

[0006] Therefore, there is a need to provide a multi-directional adjustable support device for the upper limb in the lateral decubitus position during surgery. This would solve the problem that existing surgical positioning supports for assisting patients in the lateral decubitus position, which use a telescopic column and a second support plate to adjust the height of the upper limb, are not flexible enough when adjusting other positions and angles of the upper limb. They cannot meet the precise adjustment requirements of the shoulder joint abduction angle in the lateral decubitus position, thus increasing the workload of medical staff.

[0007] To achieve the above objectives, the inventors provide a multi-directional adjustable support device for the upper limb in a surgical lateral decubitus position, comprising:

[0008] An upper limb support, comprising a top layer and a bottom layer, the top layer being located above the bottom layer, the top layer being a medical-grade silicone pressure-reducing pad and having an arc-shaped groove for supporting the patient's upper limb; and

[0009] The three-axis adjustment mechanism includes a quick-connect interface, a lifting assembly, a first translation assembly, a second translation assembly, and a second rotary joint. The quick-connect interface is connected to one end of the lifting assembly and is an ISO 19054 standard guide rail interface for mounting on the side of the operating table. The other end of the lifting assembly is connected to one end of the first translation assembly, and the other end of the first translation assembly is connected to the second rotary joint. The rotating part of the second rotary joint is connected to one end of the second translation assembly, and the other end of the second translation assembly supports the bottom layer of the upper limb support. The lifting assembly is used to raise and lower the upper limb support, the first translation assembly and the second translation assembly are used to translate the upper limb support, and the second rotary joint is used to rotate the second translation assembly and the upper limb support to adjust the position of the upper limb support.

[0010] Furthermore: the lifting assembly includes a vertically arranged lifting and stopping gas spring, the lifting and stopping gas spring having a load-bearing capacity of over 15kg, and the outer wall of the lifting and stopping gas spring having a handle.

[0011] Furthermore: the second translation component includes a horizontally arranged slide rail, a slider, and a damping structure. The slide rail is connected to the rotating end of the second rotary joint. The slide rail has a groove. The slider is slidably connected to the groove. A damping structure for increasing the sliding friction of the slider is provided between the slide rail and the groove. A handle is provided on the outer wall of the slider.

[0012] Furthermore: the first translation component includes a horizontally arranged translation-arbitrarily-stopping air spring, and the outer wall of the translation-arbitrarily-stopping air spring is provided with a handle.

[0013] Furthermore: the second rotary joint includes a ball joint and a locking structure. A protrusion is provided on the other end of the first translation component. The protrusion has a spherical groove adapted to the ball joint. The ball joint is disposed in the spherical groove and can rotate relative to the spherical groove. The ball joint is connected to one end of the second translation component via a connector. There are two protrusions located on the left and right sides of the ball joint. Each protrusion has a through hole. The locking structure includes a pressure block, a locking rod, and a spring. The locking rod passes through the through hole and can contact the connector. The end of the locking rod away from the ball joint is connected to the pressure block. The pressure block is located outside the protrusion. The spring connects the pressure block and the protrusion, providing elastic force to cause the pressure block to drive the locking rod to press against the connector, thereby locking the connector.

[0014] Furthermore, it also includes a first rotary joint, the other end of the lifting assembly being connected to one end of the first translation assembly via the first rotary joint. The first rotary joint is used to rotate the first translation assembly and the upper limb support plate to adjust the position of the upper limb support plate.

[0015] Furthermore, it also includes an angle sensor, which is disposed on one side of the first swivel joint and / or the second swivel joint, for detecting the swivel angle of the first swivel joint and / or the second swivel joint.

[0016] Furthermore, the upper limb support also includes an intermediate layer, which is located between the surface layer and the bottom layer, and the intermediate layer is memory foam.

[0017] Furthermore: the bottom layer is a polycarbonate support plate; and / or:

[0018] The medical silicone pressure-reducing pad has a hexagonal honeycomb array with a diameter of 8mm and a pore depth of 4mm.

[0019] Furthermore, it also includes a nerve pressure monitoring module, which includes a pressure sensor, a PLC controller, and an alarm. The pressure sensor is located on the upper limb support plate at the position corresponding to the patient's humerus. The pressure sensor is connected to the PLC controller, and the PLC controller is connected to the alarm. The PLC controller is used to acquire the pressure detected by the pressure sensor and control the alarm to sound an alarm when the pressure value is greater than a preset value.

[0020] Unlike existing technologies, the above technical solution has the following beneficial effects:

[0021] The device is quickly installed onto the side of the operating table via a quick-connect interface, and its initial height, position, and angle can be adjusted according to surgical needs. The ISO 19054 standard guide rail interface is compatible with mainstream operating tables such as MAQUET / TRUMPF. The height of the upper limb support plate is adjusted via a lifting assembly. A second translation assembly can be moved horizontally (left-right, or along the width of the operating table) via a first translation assembly, thereby moving the upper limb support plate. The second translation assembly can also be moved horizontally (back-forward, or along the length of the operating table) via a second translation assembly to suit the patient's body shape and surgical requirements. A second swivel joint allows the second translation assembly to rotate around its vertical axis, and the upper limb support plate rotates accordingly, enabling precise adjustment of the shoulder joint abduction angle and significantly improving the convenience and accuracy of surgical procedures. It is particularly suitable for upper limb biomechanical support and nerve protection in surgical procedures requiring prolonged lateral decubitus positioning with the upper limb flat against the back of the trunk, as well as in robotic minimally invasive surgery.

[0022] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0023] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this utility model and other related contents, and should not be considered as limitations on this application.

[0024] Figure 1 This is a perspective view of the multi-directional adjustable support device for the upper limb in this embodiment;

[0025] Figure 2 This is a front view of the second rotary joint, the second translation component, and the upper limb support plate in this embodiment;

[0026] Figure 3 for Figure 2 Front view of the second rotary joint;

[0027] Figure 4 This is a cross-sectional view of the second translation component in this embodiment;

[0028] Figure 5 This is a cross-sectional view of the upper limb support plate in this embodiment;

[0029] Figure 6 This is a connection diagram of the nerve pressure monitoring module in this embodiment;

[0030] Figure 7 This is an operational diagram of the multi-directional adjustable support device for the upper limbs in this embodiment.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Upper limb support; 11. Top layer; 12. Middle layer; 13. Bottom layer;

[0033] 2. Three-axis adjustment mechanism;

[0034] 21. Lifting assembly;

[0035] 22. First translation component; 221. Spherical groove;

[0036] 23. Second translation component; 231. Slide rail; 232. Slider; 233. Damping structure; 234. Connecting component;

[0037] 24. Second rotary joint; 241. Ball joint; 242. Pressure block; 243. Locking rod; 244. Spring; 245. Protrusion;

[0038] 25. First rotary joint;

[0039] 3. Nerve stress monitoring module;

[0040] 31. Pressure sensor; 32. PLC controller; 33. Alarm. Detailed Implementation

[0041] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0042] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0044] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0045] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0046] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0047] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0048] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0049] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0050] Please see Figures 1 to 7 This embodiment provides a multi-directional adjustable support device for the upper limb in the lateral decubitus position during surgery, comprising:

[0051] The upper limb support 1 includes a top layer 11 and a bottom layer 13, with the top layer 11 located above the bottom layer 13. The top layer 11 is a medical-grade silicone pressure-reducing pad and has an arc-shaped groove for supporting the patient's upper limb; and

[0052] The three-axis adjustment mechanism 2 includes a quick-connect interface, a lifting assembly 21, a first translation assembly 22, a second translation assembly 23, and a second rotary joint 24. One end of the quick-connect interface is connected to the lifting assembly 21 (which can correspond to...). Figure 1 The lower end of the lifting assembly 21 is connected to the ISO 19054 standard guide rail interface for mounting on the side of the operating table. The other end of the lifting assembly 21 (which can be corresponding to...) Figure 1 The upper end of the middle) and one end of the first translation component 22 (which can correspond to) Figure 1 The end of the first translation component 22 (which is located away from the upper limb support) is connected to the other end of the first translation component 22 (which can correspond to the end of the first translation component 22). Figure 1 The end of the upper limb support plate is connected to the second rotary joint 24, and the rotating part of the second rotary joint 24 is connected to one end of the second translation component 23 (which can correspond to...). Figure 1 The lower end of the middle) is connected, and the other end of the second translation component 23 (can correspond to) Figure 1 The upper part of the upper limb support plate 1 is supported by the bottom layer 13. The lifting component 21 is used to lift the upper limb support plate 1, the first translation component 22 and the second translation component 23 are used to translate the upper limb support plate 1, and the second rotary joint 24 is used to rotate the second translation component 23 and the upper limb support plate 1 to adjust the position of the upper limb support plate 1.

[0053] Uneven pressure distribution on the support surface poses a risk of brachial plexus compression. Medical silicone pressure relief pads can ensure that patients do not experience discomfort or complications due to excessive pressure during long surgeries, thus improving patient comfort.

[0054] The device is quickly installed onto the side of the operating table via a quick-connect interface, and its initial height, position, and angle can be adjusted according to surgical needs. The ISO 19054 standard guide rail interface is compatible with mainstream operating tables such as MAQUET / TRUMPF. The height of the upper limb support plate 1 is adjusted via the lifting component 21. The second translation component 23 can be moved horizontally (left-right, or along the width of the operating table) via the first translation component 22, thereby moving the upper limb support plate 1. The second translation component 23 can also be moved horizontally (back-forward, or along the length of the operating table) via the second translation component 23 to suit the patient's body shape and surgical needs. The second swivel joint 24 allows the second translation component 23 to rotate around its vertical axis, and the upper limb support plate 1 rotates accordingly, enabling precise adjustment of the shoulder joint abduction angle and significantly improving the convenience and accuracy of surgical procedures. It is particularly suitable for upper limb biomechanical support and nerve protection in surgical procedures requiring prolonged lateral decubitus positioning with the upper limb flat against the back of the trunk, as well as in robotic minimally invasive surgery.

[0055] In this embodiment, the lifting component 21, the first translation component 22, and the second translation component 23 can be electrically or manually driven to ensure precise height adjustment.

[0056] Please see Figure 1 In this embodiment, the lifting assembly 21 includes a vertically arranged, freely adjustable gas spring. This gas spring can stop at any position during its travel without requiring an additional locking device. When the applied force is removed, the gas spring maintains its current height due to internal friction, ensuring the stability of the upper limb support 1. The freely adjustable gas spring has a load-bearing capacity of over 15 kg, ensuring stable support for the patient's upper limb and the weight of related equipment. A handle is provided on the outer wall of the freely adjustable gas spring. Medical personnel can easily adjust the height of the upper limb support 1 by holding the handle on the outer wall of the freely adjustable gas spring and pulling or pushing it upwards or downwards.

[0057] Please see Figure 4 In this embodiment, the second translation component 23 includes a horizontally arranged slide rail 231, a slider 232, and a damping structure 233. The slide rail is connected to the rotating end of the second rotary joint 24. The slide rail 231 has a groove, and the slider 232 is slidably connected to the groove, allowing it to slide along the slide rail 231. A damping structure 233 is provided between the slide rail 231 and the groove to increase the sliding friction of the slider 232. A handle is provided on the outer wall of the slider 232. Due to the presence of the damping structure 233, the slider 232 can stop at any position on the slide rail 231, allowing medical personnel to precisely adjust the front and rear positions of the upper limb support 1 according to surgical needs. Even if slight external disturbances occur during surgery, the damping structure 233 can effectively prevent the slider 232 from moving, reducing the risk of misoperation.

[0058] In some embodiments, the second translation component can be secured to the slide rail and slider with bolts, eliminating the need for a damping structure. Specifically, medical personnel first manually adjust the position of the upper limb support plate. After adjustment, bolts are passed through the upper wall of the slide rail and the slider, causing the bolts to screw into the threaded holes at the bottom of the slide rail, thus locking the slider and slide rail together.

[0059] Please see Figure 1 In this embodiment, the first translation component 22 includes a horizontally arranged translation-arbitrarily-stopping air spring, the outer wall of which is provided with a handle. Medical personnel hold the handle and push or pull the translation-arbitrarily-stopping air spring forward or backward as needed. After adjusting to a suitable position, the handle is released, and the translation-arbitrarily-stopping air spring automatically locks itself due to internal friction, ensuring the upper limb support 1 remains stable. Optionally, the stroke of the translation-arbitrarily-stopping air spring is 0–30 cm.

[0060] Please see Figure 2 and Figure 3 In this embodiment, the second rotary joint 24 includes a ball joint 241 (corresponding to the rotary part mentioned above) and a locking structure. A protrusion 245 is provided on the other end of the first translation component 22. The protrusion 245 has a spherical groove 221 adapted to the ball joint 241. The ball joint 241 is disposed in the spherical groove 221 and can rotate relative to the spherical groove 221. The ball joint 241 is connected to one end of the second translation component 23 via a connector 234. There are two protrusions 245, located on the ball joint 241. On both sides of 41, the protrusions 245 have through holes. The locking structure includes a pressure block 242, a locking rod 243, and a spring 244. The locking rod 243 passes through the through hole and can contact the connector 234. The end of the locking rod 243 away from the ball joint 241 is connected to the pressure block 242. The pressure block 242 is located outside the protrusions 245. A spring 244 is connected between the pressure block 242 and the protrusions 245. The spring 244 provides elastic force to make the pressure block 242 drive the locking rod 243 to press the connector 234, thereby locking the connector 234. Optionally, the helical spring 244 can be wound around the locking rod 243. The locking rods 243 on both sides press the connector 234 to achieve the locking function; the locking rods 243 on both sides separate from the connector 234 to achieve the unlocking function.

[0061] The spherical connector 241 can rotate 360 ​​degrees within the spherical groove 221, providing great flexibility and allowing medical personnel to precisely adjust the angle of the upper limb support 1 according to surgical needs. Medical personnel pull out the pressure block 242, overcoming the elasticity of the spring 244, causing the locking rod 243 to separate from the connector 234, thus releasing the locked state. In the unlocked state, medical personnel can adjust the position of the spherical connector 241 by pushing or rotating the connector 234, thereby changing the angle of the second translation component 23 and its upper limb support 1. After adjusting to the appropriate angle, the pressure block 242 is released, the spring 244 returns to its original state, and the locking rod 243 is pushed to re-press the connector 234, locking the spherical connector 241 in the new position. This ensures that the upper limb support 1 is securely fixed at the required angle, facilitating operation.

[0062] Please see Figure 2 and Figure 3 In this embodiment, the connector 234 has an inverted trapezoidal cross-section, and the end of the locking rod 243 has a bevel that matches the waist of the inverted trapezoid. This bevel design ensures that the locking rod 243 can fit tightly against the side of the connector 234, thereby providing a reliable locking function.

[0063] Please see Figure 1In this embodiment, the surgical lateral decubitus upper limb multi-directional adjustment support device further includes a first rotary joint 25. The other end of the lifting component 21 is connected to one end of the first translation component 22 via the first rotary joint 25. The first rotary joint 25 is used to rotate the first translation component 22 and the upper limb support 1 to adjust the position of the upper limb support 1. Medical personnel can manually operate the first rotary joint 25 to rotate the first translation component 22 and its upper limb support 1 around the vertical axis, achieving fine adjustment in multiple directions and angles and providing greater flexibility.

[0064] Optionally, the structure of the first rotary joint 25 is similar to that of the second rotary joint 24, and specific details will not be repeated here. Alternatively, the first rotary joint 25 may be a pin or bearing rotatably mounted on the upper end of the lifting assembly.

[0065] In this embodiment, the surgical lateral decubitus upper limb multi-directional adjustment support device also includes an angle sensor. The angle sensor is located on one side of the first rotary joint 25 and / or the second rotary joint 24, and is used to detect the rotation angle of the first rotary joint 25 and / or the second rotary joint 24. When medical personnel manually rotate the first rotary joint 25 or the second rotary joint 24, the angle sensor monitors the rotation angle of the rotary joint in real time. The angle sensor converts the physical rotation into an electrical signal through a built-in sensing element (such as a potentiometer, Hall effect sensor, or photoelectric encoder), and transmits it to the PLC controller 32 or display device through a circuit.

[0066] Preferably, the angle sensor used is the AS5048A angle sensor. The AS5048 is an easy-to-use 360° angle position sensor with a 14-bit high-resolution output. The system accuracy can reach up to 0.05° (with linearization and averaging calculated by an external microcontroller). The sensor IC consists of a Hall sensor, an analog-to-digital converter, and a digital signal processor, and can measure the absolute position of the magnet's rotation angle.

[0067] Please see Figure 5 In this embodiment, the upper limb support 1 also includes an intermediate layer 12, located between the surface layer 11 and the bottom layer 13. The surface layer 11 (medical silicone pressure-reducing pad), the intermediate layer 12 (memory foam), and the bottom layer 13 (rigid material) are assembled together sequentially to form a three-level pressure dispersion structure. Medical personnel place the patient's upper limb on the upper limb support 1. At this time, the medical silicone pressure-reducing pad of the surface layer 11 first contacts the upper limb, providing initial pressure relief. The memory foam of the intermediate layer 12 quickly adapts to the shape of the upper limb, evenly distributing pressure to ensure optimal support and comfort for the upper limb during surgery. After the surgery, when the patient's upper limb is removed, the memory foam gradually returns to its original shape, ensuring the support is ready for the next use.

[0068] The existing upper limb support plate 1 has uneven pressure distribution on its support surface, posing a risk of brachial plexus compression. In this embodiment, the medical silicone honeycomb pressure-reducing pad has a Shore hardness of 35±5 and a hexagonal honeycomb array with a diameter of 8mm and a pore depth of 4mm, used to initially disperse pressure and provide a soft contact surface. The middle layer 12 is memory foam with a density of 45kg / m3, capable of adaptively deforming according to the shape of the patient's upper limb and evenly distributing pressure. The bottom layer 13 is a polycarbonate support with a thickness of 3mm and an open area ratio of ≥60%, providing a solid foundation support and allowing air circulation to enhance comfort. The pressure-reducing structure lowers local pressure to a safe threshold (<25kPa), reducing the risk of nerve compression.

[0069] Please see Figure 6 In this embodiment, the surgical lateral decubitus upper limb multi-directional adjustment support device also includes a nerve pressure monitoring module 3. The nerve pressure monitoring module 3 includes a pressure sensor 31, a PLC controller 32, and an alarm 33. The pressure sensor 31 is located on the upper limb support plate 1 corresponding to the position of the patient's humerus. The pressure sensor 31 is connected to the PLC controller 32, and the PLC controller 32 is connected to the alarm 33. The PLC controller 32 is used to acquire the pressure detected by the pressure sensor 31 and control the alarm 33 to sound an alarm when the pressure value is greater than a preset value.

[0070] The nerve pressure monitoring module 3 can provide real-time warnings of brachial plexus compression risks, reducing the incidence of position-related complications by 62% compared to traditional braces (clinical test data). When the patient's upper limb is placed on the upper limb support 1, the pressure sensor 31 begins to monitor the pressure in the humeral region in real time. The pressure sensor 31 sends the detected pressure data to the PLC controller 32. The PLC controller 32 receives and processes the data from the pressure sensor 31, and determines whether the currently detected pressure exceeds a preset pressure threshold. If the detected pressure value is greater than the preset value, the PLC controller 32 will immediately trigger the alarm 33 to sound an alarm. The alarm can be an audible alarm, a visual signal, or other form of notification. The alarm 33 prompts medical staff to adjust the position of the upper limb support 1 or reduce pressure in a timely manner to avoid damage to the nerves in the patient's humeral region.

[0071] In this embodiment, the nerve pressure monitoring module 3 also includes a display, and the PLC controller 32 displays the pressure distribution and pressure value of the humeral region in real time through the display.

[0072] In this embodiment, there are multiple pressure sensors 31, up to 12, covering an appropriate area to detect the humeral region. Preferably, the pressure sensors 31 are FPC1010A1 sensors, and the sampling frequency of the pressure sensors 31 is ≥100Hz to ensure real-time and high-precision pressure monitoring.

[0073] In this embodiment, a magnetic quick-release structure (NdFeB magnet N52 grade) can be added to one side of the ISO 19054 standard guide rail interface, so that the disassembly and assembly time is less than 5 seconds.

[0074] Please see Figure 7 Here is an example of the operating procedure for a multi-directional adjustable support device for the upper limb in the lateral decubitus position during surgery:

[0075] 1. The multi-directional adjustable support device for the upper limb in the lateral decubitus position during surgery is installed on the side of the operating table via an ISO 19054 standard guide rail interface, and the magnetic quick-release structure automatically locks in place;

[0076] 2. Adjust the first translation component so that the upper limb support extends 5cm below the patient's armpit;

[0077] 3. Adjust the support height using the lifting assembly, and maintain the shoulder joint abduction angle at 45° using the first swivel joint;

[0078] 4. Adjust the forearm pronation angle to 30° using the second rotary joint and lock all joints;

[0079] 5. The nerve pressure monitoring module displays the pressure distribution on the contact surface in real time and automatically alarms when the peak value exceeds the limit.

[0080] Existing supports provide only single-plane support, which cannot meet the precise adjustment requirements of shoulder abduction angle in the lateral decubitus position. In minimally invasive surgery, especially robotic surgery, existing supports can interfere with surgical procedures and fail to meet the requirements for adjustment at various angles. Uneven pressure distribution on the support surface poses a risk of brachial plexus compression. The surgical lateral decubitus upper limb multi-directional adjustable support device proposed in this application can solve the above problems.

[0081] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A multi-directional adjustment support device for upper limbs in surgical lateral position, characterized in that, The application relates to a three-axis adjusting mechanism for an upper limb support plate. The three-axis adjusting mechanism comprises a quick-mounting interface, a lifting assembly, a first translation assembly, a second translation assembly and a second rotary joint, the quick-mounting interface is connected with one end of the lifting assembly, the quick-mounting interface is an ISO 19054 standard guide rail interface and is used for being mounted on the side of a surgical bed, the other end of the lifting assembly is connected with one end of the first translation assembly, the other end of the first translation assembly is connected with the second rotary joint, the rotary part of the second rotary joint is connected with one end of the second translation assembly, and the other end of the second translation assembly supports the bottom layer of the upper limb support plate, wherein the lifting assembly is used for lifting the upper limb support plate, the first translation assembly and the second translation assembly are respectively used for translating the upper limb support plate, and the second rotary joint is used for rotating the second translation assembly and the upper limb support plate so as to adjust the position of the upper limb support plate. The lifting assembly comprises a lifting random-stop air spring arranged vertically, the bearing of the lifting random-stop air spring is more than 15 kg, and the outer wall of the lifting random-stop air spring is provided with a handle. The second translation assembly comprises a sliding rail, a sliding block and a damping structure, the sliding rail is connected with the rotary end of the second rotary joint, the sliding rail has a channel, the sliding block is slidably connected with the channel, the damping structure is arranged between the sliding rail and the channel and is used for increasing the sliding friction of the sliding block, and the outer wall of the sliding block is provided with a handle.

2. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, wherein: The first translation assembly comprises a translation random-stop air spring arranged horizontally, and the outer wall of the translation random-stop air spring is provided with a handle.

3. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, characterized in that: The second rotary joint comprises a spherical joint and a locking structure, the other end of the first translation assembly is provided with a protrusion, the protrusion is provided with a spherical groove matched with the spherical joint, the spherical joint is arranged in the spherical groove and can rotate relative to the spherical groove, the spherical joint is connected with one end of the second translation assembly through a connecting piece, the protrusion has two protrusions which are located on the left and right sides of the spherical joint, the protrusion has a through hole, the locking structure comprises a pressing block, a locking rod and a spring, the locking rod passes through the through hole and can contact the connecting piece, one end of the locking rod, which is away from the spherical joint, is connected with the pressing block, the pressing block is located outside the protrusion, the spring is connected between the pressing block and the protrusion, and the spring is used for providing elastic force to drive the pressing block to press the connecting piece tightly so as to lock the connecting piece.

4. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, characterized in that: The application further comprises a first rotary joint, the other end of the lifting assembly is connected with one end of the first translation assembly through the first rotary joint, and the first rotary joint is used for rotating the first translation assembly and the upper limb support plate so as to adjust the position of the upper limb support plate.

5. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, characterized in that: ​ 6. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, characterized in that: ​ 7. The surgical lateral position upper limb multidirectional adjusting support device according to claim 6, characterized in that: The angle sensor is arranged on one side of the first rotary joint and / or the second rotary joint, and is used for detecting the rotation angle of the first rotary joint and / or the second rotary joint.

8. The surgical lateral position upper limb multidirectional adjusting support device according to claim 1, characterized in that: The upper limb supporting plate further comprises an intermediate layer between the surface layer and the bottom layer, and the intermediate layer is a memory sponge.

9. The surgical lateral position upper limb multidirectional adjusting support device according to claim 8, characterized in that: The bottom layer is a polycarbonate support plate; and / or The medical silica gel decompression pad has a hexagonal honeycomb array with a diameter of 8mm and a hole depth of 4mm.

10. The surgical lateral position upper limb multidirectional adjustment support device according to claim 1, characterized in that: Further comprising a nerve pressure monitoring module, the nerve pressure monitoring module comprises a pressure sensor, a PLC controller and an alarm, the pressure sensor is arranged on the upper limb supporting plate corresponding to the position of the patient's humerus, the pressure sensor is connected with the PLC controller, the PLC controller is connected with the alarm, the PLC controller is used for acquiring the pressure detected by the pressure sensor, and the alarm is controlled to issue an alarm when the pressure value is greater than a preset value.

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