Adjustable side-lying position hand rack based on user body position monitoring

Abstract

The invention relates to the technical field of medical instruments, in particular to an adjustable side-lying position hand rack based on user body position monitoring, which comprises a manual adjusting mode and an automatic adjusting mode, in the manual adjusting mode, the space posture of the side-lying position hand rack is independently adjusted according to clinical requirements and the actual posture of the arm of a patient; according to the automatic adjusting mode, the angle and the distance between the large arm supporting mechanism and the small arm supporting mechanism can be adjusted through a data analysis unit according to the detected stress conditions of the arms of the patient on the large arm supporting mechanism and the small arm supporting mechanism, so that the arms of the patient are stabilized in a preset supporting area; the stress condition of the arm of the patient on the hand supporting plate is monitored in real time, and the data analysis unit conducts real-time adjustment so as to guarantee the patient. By means of the data analysis unit, continuous optimization and self-adaptive adjustment of the arm supporting posture of the patient are achieved automatically, brachial plexus injury is effectively prevented, and operation safety and operation efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an adjustable lateral position support frame based on user body position monitoring. BACKGROUND

[0002] In the required lateral position surgery, the safety and stability of the patient's body position is one of the key foundations for the success of the surgery. During the operation, the patient usually needs to maintain a fixed posture for a long time, and the placement position of the upper limbs directly affects not only the range of the operation field and the operation efficiency of the doctor, but also the occurrence of serious complications such as nerve damage and pressure sores after the operation.

[0003] Chinese Patent Publication No. CN114869675A discloses a lateral position support frame for hip replacement surgery, comprising: a bed body; the bottom end of the bed body is fixedly connected with a fixed bottom disc; the bottom end of the fixed bottom disc is provided with a rotating connection; the top of the rotating disc is provided with a bevel gear A through coaxial connection, and the top of the bevel gear A is rotatably connected with the bottom of the fixed bottom disc; the articulated seat and the arm support plate can be translated downward by reverse rotating the hand wheel B, so that the top surface of the arm support plate can be lowered below the bottom surface of the bed body; the user can adjust the horizontal angle of the slide rail by rotating the hand wheel A, so that the slide rail and the arm support plate can be horizontally rotated to the inside of the bottom of the bed body; the device can be conveniently stored, and it is convenient to quickly take out and adjust during lateral position surgery.

[0004] Therefore, the lateral position support frame for hip replacement surgery has the following problems: The lateral position support frame for hip replacement surgery has single adjustment dimension and fixed angle, and cannot be finely adjusted according to the individualized arm length, shoulder width and body size of the patient, so it is difficult to achieve that the upper limbs of each patient are in a physiological functional position without traction and excessive abduction. Secondly, the lateral position support frame for hip replacement surgery is a static passive support, and once fixed, it cannot sense the slight body position displacement of the patient caused by anesthesia, muscle relaxation or surgical operation, so that the originally appropriate support point may gradually change into a compression point or a traction point. SUMMARY

[0005] Therefore, the present application provides an adjustable lateral position support frame based on user body position monitoring to overcome the technical problem that the existing lateral position support frame cannot be finely adjusted according to the arm pressure parameters of the patient to provide the best dynamic support for the arms of the patient by adjusting the angle of the device in real time.

[0006] To achieve the above-mentioned purpose, the present application provides an adjustable lateral position support frame based on user body position monitoring, comprising: The big arm support mechanism is used for fixing and supporting the big arm, and the first pressure sensor group arranged inside is used for acquiring the big arm stress distribution main shaft and the big arm stress deviation state, so as to determine the initial angle adjustment mode of the big arm support mechanism when the stress center position of the big arm support mechanism deviates from the preset big arm support range, and to correct the initial angle adjustment mode based on the stress deviation state of the big arm support mechanism after the initial angle adjustment of the small arm support mechanism; The small arm support mechanism is used for fixing and supporting the small arm, and the second pressure sensor group arranged inside is used for acquiring the small arm stress distribution main shaft and the small arm stress deviation state, so as to determine the stop position of the big arm support mechanism based on the change of the small arm stress distribution main shaft or the small arm stress distribution main shaft deviation state during the adjustment of the big arm support mechanism, and to determine the initial angle adjustment of the small arm support mechanism based on the small arm stress deviation state acquired when the big arm support mechanism is in the stop position, so that the included angle between the small arm support mechanism and the big arm support mechanism falls within the preset included angle range. The adjustment assembly is connected with the big arm support mechanism and the small arm support mechanism respectively, and is used for controlling the big arm support mechanism to stop the angle adjustment in response to the control instruction generated based on the small arm stress distribution main shaft or the small arm stress deviation state, and controlling the big arm support mechanism to run the angle adjustment in response to the included angle between the small arm support mechanism and the big arm support mechanism falling within the preset included angle range, so as to complete the angle adjustment mode of the big arm support mechanism, and to adjust the position of the small arm support mechanism based on the small arm stress deviation state to determine the degree of deviation of the small arm stress region from the standard stress region, so that the big arm support mechanism and the small arm support mechanism are matched.

[0007] Further, the big arm support mechanism comprises, The big arm support hand plate is used for fixing the big arm and moving together with the big arm when the big arm support mechanism moves; The first pressure sensor group is arranged inside the big arm support hand plate and is composed of a plurality of pressure sensors, which are distributed in a matrix form on the big arm support mechanism, and the arrangement mode ensures that the main pressure bearing area of the big arm on the hand plate can be fully covered, and the real-time pressure data of the respective corresponding areas are synchronously and continuously collected, so as to acquire the big arm stress distribution data and determine the big arm stress distribution; The spherical hinge is used for adjusting the angle of the big arm support hand plate to adjust the support position of the big arm on the hand plate; The small arm support mechanism comprises, The small arm support hand plate is used for fixing the small arm and moving together with the small arm when the small arm support mechanism moves; A second pressure sensor group is arranged inside the forearm support plate and consists of a plurality of pressure sensors which are distributed in a matrix on the forearm support plate. The arrangement ensures that the main pressure bearing area of the forearm on the support plate is fully covered. The pressure sensors are configured to synchronously and continuously collect real-time pressure data of their respective corresponding areas, so as to obtain the force distribution data of the forearm and determine the force distribution of the forearm. A positioning pin is arranged to reliably fix and quickly release the swing angle of the forearm support plate around the rotation axis. The adjusting assembly comprises, A stator guide rail is arranged to form a high-precision linear motion pair with the mover assembly, so as to guide the linear displacement of the forearm support plate relative to the upper arm support plate. A mover is arranged to adjust the relative distance between the forearm support plate and the upper arm support plate. A rotation axis is coaxially arranged inside the mover, and is used to adjust the included angle between the forearm support mechanism and the upper arm support mechanism.

[0008] Further, a data analysis unit is arranged to determine the main force distribution axis and the force deviation state of the upper arm according to the force data of the upper arm collected by the first pressure sensor group, and to determine the main force distribution axis and the force deviation state of the forearm according to the force data of the forearm collected by the second pressure sensor group, so as to obtain the force distribution of the arm on the upper arm support mechanism and the forearm support mechanism, and determine the distance between the upper arm support plate and the forearm support plate.

[0009] Further, the angle adjusting process of the upper arm support mechanism comprises, The geometric center of the upper arm support plate of the upper arm support mechanism is set as a reference, and a preset upper arm support range is set; The data analysis unit collects signals at a preset detection period, continuously collects the data of the first pressure sensor group embedded in the upper arm support mechanism, and obtains the main force distribution axis and the force deviation state of the arm on the upper arm support mechanism in real time. Whether the main force distribution axis of the upper arm is within the preset upper arm support range is determined. If the main force distribution axis of the upper arm exceeds the preset upper arm support range, the data analysis unit determines the adjustment amount and direction of the initial angle of the upper arm support mechanism based on the deviation amount of the main force distribution axis of the upper arm support mechanism obtained by the data analysis unit and in combination with a preset adjustment coefficient.

[0010] Further, the upper arm support mechanism stops the determination process, Based on the angle adjusting process of the upper arm support mechanism, the data analysis unit obtains the main force distribution axis of the forearm on the forearm support mechanism in real time. If the main force distribution axis of the forearm exceeds the preset support range of the forearm support mechanism, the angle adjustment of the upper arm support mechanism is immediately stopped.

[0011] Further, the small arm support mechanism adjustment process, Based on the current large arm support mechanism stop position or the large arm support mechanism angle adjustment position, the data analysis unit obtains the second sensor group data embedded in the small arm support mechanism, analyzes the force distribution main shaft of the small arm in the small arm support mechanism and the force distribution main shaft deviation; Based on the adjustment proportion coefficient set in the small arm support mechanism and the radial deviation vector of the small arm and the geometric center of the small arm support mechanism hand plate, the angle adjustment amount of the small arm support mechanism is determined.

[0012] Further, the data analysis unit obtains the force main shaft deviation of the small arm on the small arm support mechanism. If the force distribution main shaft of the small arm on the small arm support mechanism is within the preset support range on the small arm support hand plate, it is determined that the small arm support mechanism adjustment is completed.

[0013] Further, the large arm support mechanism correction and verification process, After the initial angle adjustment of the small arm support mechanism, if the initial angle adjustment of the small arm support mechanism is completed and the force distribution main shaft of the large arm in the large arm support mechanism exceeds the preset support range, the data analysis unit obtains the force distribution main shaft deviation of the large arm in the large arm support mechanism for angle correction; Based on the maximum pressure position of the arm on the lateral position support frame, it is determined whether to adjust the distance between the large arm support mechanism and the small arm support mechanism and the distance adjustment method; The data analysis unit obtains the force distribution main shaft of the large arm in the large arm support mechanism. If the force distribution main shaft of the large arm in the large arm support mechanism is within the preset support range, stop adjusting the angle of the large arm support mechanism; Based on the classification of the maximum pressure position of the arm on the lateral position support frame, the distance adjustment method is determined, The first type of force condition is that if the maximum pressure of the arm on the support frame is at the edge of the small arm support mechanism, it is determined that the distance between the large arm support mechanism and the small arm support mechanism is too large, and the data analysis unit determines to automatically reduce the distance between the large arm support mechanism and the small arm support mechanism; The second type of force condition is that if the maximum pressure of the arm on the support frame is at the edge of the large arm support mechanism, it is determined that the distance between the large arm support mechanism and the small arm support mechanism is too small, and the data analysis unit determines to automatically expand the distance between the large arm support mechanism and the small arm support mechanism.

[0014] Further, the large arm support mechanism and small arm support mechanism adjustment completion state process, The data analysis unit obtains the force distribution main shaft of the arm in the large arm support mechanism and the small arm support mechanism according to the arm support data of the first pressure sensor group embedded in the large arm support mechanism and the second pressure sensor group embedded in the small arm support mechanism, and if the force main shaft distribution of the arm does not exceed the preset support range and the maximum pressure of the lateral position support frame does not appear in the edge area, the adjustment of the large arm support mechanism and the small arm support mechanism is completed.

[0015] Further, the lateral position support frame manual mode determines the spatial form of the ball hinge, the mover and the positioning pin by obtaining the actual posture of the large arm and the small arm, so as to meet the requirement of fixing the spatial position of the large arm and the small arm. The spatial angle of the large arm support hand plate is adjusted by manually operating the ball hinge. The swing angle of the small arm support hand plate is fixed and released by pulling out or rotating the positioning pin, so as to manually adjust and lock. The distance between the small arm support hand plate and the large arm support hand plate is adjusted by directly manually changing the relative position of the mover assembly on the stator slide rail.

[0016] Compared with the prior art, the present application has the beneficial effect that different patients with different arm conditions can be differentiated and adjusted, and the support is actively adjusted according to the force change of the patient's arm, realizing the leap from "passive support" to "active adaptation", and significantly improving the accuracy, safety and comfort of the support.

[0017] Further, by continuously monitoring the pressure distribution at a fixed period, the force changes caused by muscle relaxation, slight displacement or surgical operation of the patient can be sensed in real time, and the adjustment program can be automatically started without manual intervention, dynamically compensating for these changes to ensure continuous stable support, effectively avoiding the problem that the traditional support frame gradually loses its support effect due to the inability to adapt to changes.

[0018] Further, by accurately fixing and comfortably supporting the body position, the patient's body movement and body position adjustment caused by discomfort are reduced, the surgical field is exposed and the operation is smoothly performed, the anesthesia and operation risk is reduced, the long-term risk of pressure sores or nerve damage caused by improper support is fundamentally reduced, and medical personnel are freed from frequent manual observation and adjustment, so that they can focus more on the operation itself, and the overall efficiency and reliability of the operation process are improved.

[0019] Further, the lateral position support frame adopts memory sponge and sets an ideal pressure bearing area, focuses on protecting the nerve pathway area, effectively avoids nerve compression, traction and excessive abduction, combines intraoperative dynamic monitoring and early intervention, greatly reduces the incidence of nerve damage, and protects the patient's postoperative limb function. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of a lateral position support frame based on user body position detection according to an embodiment of the present application; Figure 2 Structure diagram of an arm support mechanism of a lateral position support frame based on user body position detection according to an embodiment of the present application; Figure 3 Flow chart of automatic adjustment of a lateral position support frame based on user body position detection according to an embodiment of the present application; Figure 4 Flow chart of instruction prioritization of a data analysis unit of a lateral position support frame based on user body position detection according to an embodiment of the present application.

[0021] In the figure: 1-large arm support hand plate, 2-small arm support hand plate, 3-connection plate, 4-large arm support hand plate driving motor, 5-inserted rod, 6-fixing screw, 7-ball hinge connection seat, 8-ball hinge, 9-stator sliding rail, 10-mover, 11-small arm support hand plate driving motor, 12-positioning tooth, 13-rotation shaft, 14-bracket, 15-positioning pin, 16-memory cotton layer, 17-pressure sensor, 18-anti-prepared layer. DETAILED DESCRIPTION

[0022] In order to make the objects and advantages of the present application clearer, the present application will be further described below with reference to examples; it should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0023] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application and are not intended to limit the protection scope of the present application.

[0024] It should be noted that, in the description of the present application, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0025] In addition, it should also be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0026] Please refer to Figure 1As shown, it is a lateral position support frame structure based on user body position detection according to the embodiment of the present application. The support frame includes a large arm support mechanism 1 for fixing and supporting the large arm and acquiring the large arm stress distribution degree and the large arm stress deviation state through the internally arranged first pressure sensor group, determining the initial angle adjustment mode when the position of the large arm support mechanism is greater than the first preset range based on the large arm stress distribution degree, and correcting the initial angle adjustment mode based on the degree of deviation of the large arm stress region from the standard stress region based on the stress deviation state; a small arm support mechanism for fixing and supporting the small arm and acquiring the small arm stress distribution degree and the small arm stress deviation state through the internally arranged second pressure sensor group, determining the stop position of the large arm support mechanism adjustment based on the change of the small arm stress distribution degree or the change of the small arm stress deviation state during the adjustment of the large arm support mechanism, and determining the small arm first angle adjustment mode based on the small arm stress distribution degree when the position of the large arm support mechanism is greater than the second preset distance based on the small arm stress distribution degree acquired when the large arm support mechanism is in the stop position, so that the included angle between the small arm support mechanism and the large arm support mechanism falls within the preset included angle range; an adjustment assembly connected with the large arm support mechanism and the small arm support mechanism respectively, for controlling the angle adjustment of the large arm support mechanism to stop in response to the control instruction generated based on the small arm stress distribution degree or the small arm stress deviation state, and controlling the angle adjustment of the large arm support mechanism to run in response to the included angle between the small arm support mechanism and the large arm support mechanism falling within the preset included angle range, so as to complete the angle adjustment mode of the large arm support mechanism, and adjust the position of the small arm support mechanism based on the degree of deviation of the small arm stress region from the standard stress region determined based on the small arm stress deviation state, so that the large arm support mechanism and the small arm support mechanism are matched.

[0027] The data analysis unit is used to determine the large arm stress distribution main shaft and the large arm stress deviation state according to the large arm stress data collected by the first pressure sensor group, determine the small arm stress distribution main shaft and the small arm stress deviation state according to the small arm stress data collected by the second pressure sensor group, and determine the distance between the large arm support hand plate and the small arm support hand plate based on the stress pressure distribution of the arm in the large arm support mechanism and the small arm support mechanism.

[0028] Specifically, the large arm support mechanism includes, The large arm support hand plate 1 is used to fix the large arm and move together when the large arm moves in the large arm support mechanism; The first pressure sensor group is arranged inside the large arm support hand plate and consists of a plurality of pressure sensors, which are distributed in a matrix form on the large arm support mechanism. The arrangement ensures that it can fully cover the main pressure bearing area of the large arm on the hand plate. It is configured to synchronously and continuously collect real-time pressure data of each corresponding area, so as to acquire large arm stress distribution data and determine the large arm stress distribution; Ball hinge 8, used to adjust the angle of the forearm support plate 1 to adjust the support position of the forearm on the support plate; Specifically, the forearm support mechanism comprises, The forearm support plate 2 is used to fix the forearm and move together when the forearm support mechanism moves; The second pressure sensor group is arranged inside the forearm support plate and consists of a plurality of pressure sensors, which are distributed in a matrix form on the forearm support mechanism. The arrangement ensures that the main pressure-bearing area of the forearm on the support plate can be fully covered. The pressure sensors are configured to synchronously and continuously collect real-time pressure data of their respective corresponding areas, so as to obtain force distribution data of the forearm and determine the force distribution of the forearm; The positioning pin 15 is used to reliably fix and quickly release the swing angle of the forearm support plate around the rotation axis; Specifically, the adjusting assembly comprises, The stator guide rail 9 is used to form a high-precision linear motion pair with the rotor assembly to provide guidance for the linear displacement of the forearm support plate relative to the forearm support plate; The rotor 10 is used to adjust the relative distance between the forearm support plate and the forearm support plate; The rotation axis 13 is coaxially arranged inside the rotor and is used to adjust the included angle between the forearm support mechanism and the forearm support mechanism.

[0029] Specifically, the adjustable lateral position support frame working mode comprises a manual adjustment mode and an automatic adjustment mode; The manual adjustment mode is based on the actual posture of the arm and performs the following independent or cooperative operations: The spatial angle and posture of the forearm support plate 1 are adjusted by manually operating the ball hinge 8; The swing angle of the forearm support plate 2 is fixed and released by pulling out or rotating the positioning pin 15, so as to manually adjust and lock; The distance between the forearm support plate 2 and the forearm support plate 1 is adjusted by directly manually changing the relative position of the rotor 10 on the stator guide rail 9.

[0030] Specifically, the embodiment of the present application effectively disperses pressure and fundamentally prevents nerve damage caused by long-term local compression, improper body position traction and intraoperative body position slip through the design of partitioning and independently supporting the large arm and the small arm. The large arm supporting plate 1 mainly bears most of the body weight at the proximal end of the heart, prevents the shoulder joint from being excessively stretched forward or falling backward due to gravity, can adjust the spatial angle of the large arm supporting plate through a spherical hinge, can ensure that the shoulder joint is in a stable position without traction, and avoids compression or excessive traction of the brachial plexus in the axillary region. The small arm supporting plate 2 maintains the flexion angle of the elbow joint and the rotation neutral position of the forearm, avoiding long-term excessive extension or flexion of the small arm, which causes pressure on the joint capsule and surrounding nerves.

[0031] Referring to Figure 2 As shown in the figure, it is a lateral position hand support arm mechanism structure schematic diagram based on user body position detection according to the embodiment of the present application. The large arm supporting plate 1 and the small arm supporting plate 2 are made of a special material, and are composed of a memory cotton layer 16, a pressure sensor 17 and a special plate layer 18 from top to bottom. The upper layer is attached with a memory cotton layer 16 with a thickness of 2 centimeters, which is used to provide comfortable arm support. The pressure sensor 17 is used to detect the pressure distribution of the arm on the supporting plate. The special plate layer 18 is used to provide a stable rigid support base.

[0032] Referring to Figure 3 As shown in the figure, it is a lateral position hand support arm mechanism structure schematic diagram based on user body position detection according to the embodiment of the present application. The large arm supporting plate 1 and the small arm supporting plate 2 are made of a special material, and are composed of a memory cotton layer 16, a pressure sensor 17 and a special plate layer 18 from top to bottom. The upper layer is attached with a memory cotton layer 16 with a thickness of 2 centimeters, which is used to provide comfortable arm support. The pressure sensor 17 is used to detect the pressure distribution of the arm on the supporting plate. The special plate layer 18 is used to provide a stable rigid support base. The data analysis unit acquires signals with a preset detection period, continuously acquires data of the pressure sensor group inside the large arm supporting mechanism 1 and the small arm supporting mechanism 2, and obtains the force state and force deviation state of the arm on the large arm supporting mechanism 1 and the small arm supporting mechanism 2 in real time. Based on the force state and force deviation state of the large arm supporting mechanism 1 and the small arm supporting mechanism 2, the data analysis unit preliminarily determines the adjustment instruction to determine whether to adjust the large arm supporting mechanism angle, the small arm supporting mechanism angle and the distance between the large arm supporting mechanism and the small arm supporting mechanism. Based on the preliminary adjustment strategy, the adjustment component performs a priority execution strategy on the preliminary adjustment instruction. The adjustment component takes adjusting the large arm supporting mechanism angle as the highest priority, takes adjusting the small arm supporting mechanism angle as the secondary priority, and takes adjusting the distance between the large arm supporting mechanism 1 and the small arm supporting mechanism 2 as the lowest priority. The preliminary adjustment is performed according to a priority execution strategy, and the process is adjusted to initial angle adjustment based on the main shaft deviation of force distribution of the large arm in the large arm supporting mechanism, initial angle adjustment based on the main shaft deviation of force distribution of the small arm in the small arm supporting mechanism, correction based on the main shaft deviation of force distribution of the large arm in the large arm supporting mechanism after initial adjustment, and determination of whether to adjust the distance between the large arm supporting mechanism and the small arm supporting mechanism by comparing the maximum pressure position of the arm in the scaffold based on pressure data on the supporting hand plates of the large arm supporting mechanism and the small arm supporting mechanism. The pressure data on the supporting hand plates of the large arm supporting mechanism and the small arm supporting mechanism are periodically acquired, and the data analysis unit determines the state of the space posture of the lateral position scaffold in real time based on the acquired pressure data and generates corresponding adjustment instructions for adjusting the space posture of the large arm supporting hand plate and the small arm supporting hand plate. In the adjustment process of the large arm supporting mechanism 1, the data analysis unit acquires the force data change of the large arm supporting mechanism 1 in real time, and if the main shaft deviation of force distribution of the small arm exceeds the preset support range of the small arm supporting mechanism during the adjustment process, the angle adjustment of the large arm supporting mechanism is immediately stopped.

[0033] Specifically, the automatic adjustment mode of the embodiment of the present application realizes the leap of the lateral position arm support from "static fixation" to "dynamic self-adaptation" by constructing a closed-loop control system with pressure sensing as the core and priority execution as the logic. The system can acutely identify pressure abnormalities in key areas such as the brachial plexus path and preferentially adjust the angle of the large arm to quickly relieve the compression risk, effectively preventing nerve damage and pressure ulcers. The unique priority strategy and collaborative termination mechanism ensure that the adjustment process is efficient and safe, avoiding secondary body position problems caused by local adjustment.

[0034] Specifically, the large arm supporting mechanism 1 and the small arm supporting mechanism 2 are embedded with an array composed of multiple pressure sensors, which are distributed in a matrix form between the support plate layer 18 and the memory cotton layer 16. In this embodiment, the data analysis unit synchronously collects data from all sensors at a fixed frequency of 1 Hz, i.e. once per second.

[0035] Specifically, the force state of the large arm supporting mechanism in the embodiment of the present application is based on the first sensor group embedded in the large arm supporting mechanism. The sensor group is distributed in a matrix form on the large arm supporting mechanism, and its arrangement ensures that it can fully cover the main pressure-bearing area of the large arm on the supporting hand plate. The first pressure sensor group is configured to synchronously and continuously collect real-time pressure data of its respective corresponding area to determine the main shaft of force distribution of the large arm in the large arm supporting mechanism.

[0036] Specifically, the force distribution main shaft obtains pressure data through the embedded sensor array, and reflects the force distribution main shaft of the large arm according to the pressure data of the pressure sensor, and compares with the preset large arm support range to determine whether the force of the large arm is deviated.

[0037] Specifically, the process of determining whether the force of the large arm is deviated in the embodiment of the present application, the size of the hand plate on the large arm supporting mechanism is , the geometric center of the hand plate of the large arm supporting mechanism is set as the reference, and the area range of the hand plate is the preset large arm support range, whether the obtained large arm force distribution main shaft responds to the preset large arm support range is determined to determine whether to adjust. If the large arm force distribution main shaft does not exceed the preset large arm support range, the data analysis unit periodically obtains the pressure data of the large arm, and analyzes the position of the large arm force distribution main shaft in real time; if the large arm force distribution main shaft exceeds the preset support range of the large arm supporting mechanism, it is determined that the angle of the large arm supporting mechanism needs to be adjusted, and the initial angle adjustment mode of the large arm supporting mechanism is determined based on the deviation state of the large arm force distribution main shaft.

[0038] Specifically, the initial angle adjustment mode of the large arm supporting mechanism in the embodiment of the present application is obtained by obtaining the deviation direction of the force distribution main shaft of the large arm supporting mechanism, and the initial angle adjustment mode of the large arm supporting mechanism is obtained by calculating and analyzing the deviation direction of the current large arm force distribution main shaft through the data analysis unit, and the deviation amount of the force distribution main shaft is obtained. , The initial adjustment angle of the large arm supporting mechanism is counterclockwise rotation as positive; The adjustment proportion coefficient of the large arm supporting mechanism is The deviation amount of the large arm force distribution main shaft from the preset large arm support range is defined as positive direction away from the trunk. The adjustment proportion coefficient of the large arm supporting mechanism in the embodiment of the present application is The data analysis unit determines the corresponding driving motor of the adjustment assembly to perform initial angle adjustment according to the calculation result, and subsequently determines whether to suspend the angle adjustment of the large arm supporting mechanism by judging the force deviation of the upper small arm of the small arm supporting mechanism based on the force change of the small arm on the hand plate of the small arm supporting mechanism.

[0039] It is assumed that the force distribution main shaft of the large arm on the large arm supporting mechanism is 20mm in the deviation amount, and the direction is away from the trunk side. According to the formula, the initial adjustment angle of the large arm supporting mechanism is 4°, and since the deviation direction is away from the trunk, the adjustment needs to make the large arm hand plate inward to the trunk direction, which is counterclockwise rotation, so the adjustment angle is -4°.

[0040] Specifically, the method for adjusting the angle of the forearm supporting mechanism comprises the following steps: detecting the deviation of the main axis of force distribution of the forearm on the forearm supporting mechanism during the adjustment of the angle of the forearm supporting mechanism; and stopping the adjustment of the angle of the forearm supporting mechanism if the deviation of the main axis of force distribution of the forearm exceeds the preset supporting range of the forearm supporting mechanism, and adjusting the initial angle of the forearm supporting mechanism by the data analysis unit.

[0041] Specifically, the force state of the forearm supporting mechanism is based on a second sensor group embedded in the forearm supporting mechanism, which is distributed in a matrix form on the forearm supporting mechanism, and the arrangement ensures that the main pressure-bearing area of the forearm on the supporting plate can be fully covered. The second pressure sensor group is configured to synchronously and continuously collect real-time pressure data of the respective corresponding areas to determine the main axis of force distribution of the forearm on the forearm supporting mechanism.

[0042] Specifically, the initial angle adjustment of the forearm supporting mechanism is based on the deviation of the main axis of force distribution of the forearm during the adjustment of the forearm supporting mechanism, or the deviation of the main axis of force distribution of the forearm determines the stop position of the adjustment of the forearm supporting mechanism, and the initial angle adjustment of the forearm supporting mechanism is determined based on the deviation of the main axis of force distribution of the forearm when the forearm supporting mechanism is in the stop position, so that the included angle between the forearm supporting mechanism and the forearm supporting mechanism falls within the preset included angle range. By , the initial adjustment angle of the forearm supporting mechanism is counterclockwise rotation positive; the adjustment coefficient of the forearm supporting mechanism, the radial deviation vector of the forearm and the geometric center of the supporting plate of the forearm supporting mechanism is defined as the positive direction away from the trunk. In the embodiment of the present application, the adjustment coefficient of the forearm supporting mechanism , and the initial angle correction of the forearm supporting mechanism is performed according to the deviation of the forearm.

[0043] The embodiment assumes that if the initial adjustment angle of the forearm supporting mechanism is -4°, the main axis of force distribution of the forearm exceeds the preset supporting range of the forearm, and the system records the force state of the forearm at the stop time. At this time, the radial deviation of the main axis of force distribution of the forearm relative to the geometric center of the supporting plate is 15mm away from the trunk. At the stop, the forearm supporting mechanism is actually adjusted by -2°, so that the deviation of the forearm is corrected based on the stop position of the current forearm supporting mechanism, and the main axis of force is returned to the center. Since the deviation direction of the forearm is away from the trunk, the adjustment needs to make the forearm supporting plate inwardly retract towards the trunk. The initial adjustment angle of the forearm is -1.5° by calculation.

[0044] Specifically, the initial angle correction of the forearm supporting mechanism is adjusted according to the initial angle adjustment of the lower arm supporting mechanism. If the initial angle adjustment of the lower arm supporting mechanism is adjusted, and the force distribution main shaft of the forearm in the forearm supporting mechanism exceeds the preset support range, the data analysis unit obtains the deviation of the force distribution main shaft of the forearm in the forearm supporting mechanism to perform initial angle correction, and the forearm supporting mechanism is adjusted through , The adjustment angle of the forearm supporting mechanism is corrected, and the counterclockwise rotation is positive. The proportion coefficient of the forearm supporting mechanism is corrected, The radial deviation vector of the forearm and the geometric center of the forearm supporting mechanism is defined as the positive direction, and the side away from the trunk is defined as the positive direction. In the embodiment of the present application, the proportion coefficient of the forearm supporting mechanism is The force distribution of the forearm in the forearm supporting mechanism is adjusted after the adjustment of the lower arm supporting mechanism, and the correction is performed. If the forearm and the lower arm are within the preset support range of the forearm supporting mechanism and the lower arm supporting mechanism, the angle adjustment of the forearm supporting mechanism and the lower arm supporting mechanism is completed. The maximum pressure position of the arm on the scaffold is detected to determine whether to adjust the distance between the forearm supporting mechanism and the lower arm supporting mechanism.

[0045] The embodiment assumes that the radial deviation vector direction of the force distribution main shaft of the forearm relative to the geometric center of the forearm supporting mechanism is still 10mm away from the trunk after the adjustment of the lower arm supporting mechanism, and still exceeds the preset support range. The initial adjustment angle of the forearm supporting mechanism is calculated to be-1.5° according to the formula, and the force distribution main shaft of the forearm and the lower arm is within the preset support range after adjustment, and the angle adjustment of the forearm supporting mechanism and the lower arm supporting mechanism is determined to be completed.

[0046] Specifically, the distance between the forearm supporting mechanism and the lower arm supporting mechanism is adjusted, and the data analysis unit obtains the pressure data on the forearm supporting mechanism and the lower arm supporting mechanism by comparison. The maximum pressure position of the arm on the scaffold is determined to determine whether to adjust the distance between the forearm supporting mechanism and the lower arm supporting mechanism. And set S is the position coefficient, if the maximum pressure position of the lateral position scaffold is in the edge area of the lower arm supporting mechanism, If the maximum pressure position of the lateral position scaffold is in the edge area of the forearm supporting mechanism, , The adjustment step is 20mm. If the maximum pressure of the arm on the scaffold is in the edge of the lower arm supporting mechanism, it is determined that the distance between the forearm supporting mechanism and the lower arm supporting mechanism is too large, and the data analysis unit determines to automatically reduce the distance between the forearm supporting mechanism and the lower arm supporting mechanism. If the maximum pressure of the arm on the scaffold is in the edge of the forearm supporting mechanism, it is determined that the distance between the forearm supporting mechanism and the lower arm supporting mechanism is too small, and the data analysis unit determines to automatically expand the distance between the forearm supporting mechanism and the lower arm supporting mechanism.

[0047] The embodiment assumes that the stress distribution main shafts of the adjusted large arm and small arm are within the preset support range, and the maximum pressure of the arm on the scaffold is located at the edge of the small arm support mechanism, , the formula is calculated to determine , the adjusting assembly controls the moving element to reduce the distance between the large arm support mechanism and the small arm support mechanism by 20 mm, and when the maximum pressure of the lateral position scaffold does not occur in the edge area, the adjustment of the lateral position scaffold is completed.

[0048] Through the above automatic adjustment mode, the system can dynamically guide and accurately stabilize the arm in the preset ideal pressure bearing area. Not only is the optimal pressure distribution achieved after the initial posture adjustment, but also the impact caused by slight changes in body position can be continuously monitored and compensated in real time, thereby ensuring the rationality, adaptability and comfort of the lateral position scaffold support.

[0049] Through the lateral position scaffold, the data analysis unit can real-time perceive the arm pressure distribution and automatically make accurate adjustments. The limitations of traditional scaffolds relying on manual adjustment by medical staff based on experience are solved, and the problems of nerve compression or unstable support caused by improper adjustment are avoided, providing a continuously optimized personalized support solution. This solution aims to significantly improve surgical safety and comfort, and takes eliminating local high pressure points as the top priority, and can actively prevent complications such as nerve damage caused by long-term compression. Its dynamic tracking and adaptive adjustment capabilities can effectively compensate for changes in body position caused by surgery duration, muscle relaxation or slight displacement, always keeping the arm in an optimal state of mechanical distribution, thereby significantly improving comfort and safety during long-term lateral position surgery.

[0050] The scaffold improves the efficiency and automation level of medical operations, reduces the interruption of surgical procedures due to adjustment of body position during surgery, and frees medical staff from tedious and repetitive manual adjustment work, allowing them to focus more on core surgical operations. At the same time, its intuitive manual and automatic dual-mode design meets the rapid deployment needs in regular scenarios and can also meet the fine control requirements in complex situations, significantly improving the overall work efficiency and collaborative experience of the surgical team. In addition, the application of the scaffold significantly reduces complications such as pressure injuries and nerve damage, which helps to promote postoperative functional recovery, improves the utilization of medical resources, and reduces the overall medical cost.

[0051] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the drawings, but those skilled in the art will readily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. An adjustable lateral position handrail based on user position monitoring, characterized in that, comprising, the forearm support mechanism is used to fix and support the forearm, and the first pressure sensor group arranged inside the forearm support mechanism is used to obtain the main axis of the force distribution of the forearm and the force deviation state of the forearm, so as to determine the initial angle adjustment mode of the force center position of the forearm support mechanism when the preset forearm support range deviates, and to correct the initial angle adjustment mode based on the force deviation state of the forearm support mechanism; the forearm support mechanism is used to fix and support the forearm, and the second pressure sensor group arranged inside the forearm support mechanism is used to obtain the main axis of the force distribution of the forearm and the force deviation state of the forearm, so as to determine the stop position of the forearm support mechanism based on the change of the main axis of the force distribution of the forearm or the force deviation state of the main axis of the force distribution of the forearm during the adjustment of the forearm support mechanism, and to determine the initial angle adjustment of the forearm support mechanism based on the force deviation state of the forearm obtained when the forearm support mechanism is in the stop position, so that the included angle between the forearm support mechanism and the forearm support mechanism falls within the preset included angle range; the adjustment assembly is connected with the forearm support mechanism and the forearm support mechanism respectively, and is used to control the angle adjustment of the forearm support mechanism to stop in response to the control instruction generated based on the main axis of the force distribution of the forearm or the force deviation state of the forearm, and to control the angle adjustment of the forearm support mechanism to run in response to the included angle between the forearm support mechanism and the forearm support mechanism falling within the preset included angle range, so as to complete the angle adjustment mode of the forearm support mechanism, and to adjust the position of the forearm support mechanism based on the force deviation state of the forearm to deviate from the standard force region, so that the forearm support mechanism and the forearm support mechanism are matched.

2. The adjustable lateral position support frame based on user body position monitoring according to claim 1, characterized in that the forearm support mechanism comprises a forearm support hand plate used to fix the forearm and move together with the forearm when the forearm support mechanism moves; a first pressure sensor group arranged inside the forearm support hand plate and composed of a plurality of pressure sensors, which are laid in a matrix distribution form on the forearm support mechanism, and the arrangement mode ensures that the main pressure bearing area of the forearm on the hand plate can be fully covered, and the real-time pressure data of the respective corresponding areas are synchronously and continuously collected for obtaining the force distribution data of the forearm to determine the force distribution of the forearm; a spherical hinge used to adjust the angle of the forearm support hand plate to adjust the support position of the forearm on the hand plate; the forearm support mechanism comprises a forearm support hand plate used to fix the forearm and move together with the forearm when the forearm support mechanism moves; a second pressure sensor group arranged inside the forearm support hand plate and composed of a plurality of pressure sensors, which are laid in a matrix distribution form on the forearm support mechanism, and the arrangement mode ensures that the main pressure bearing area of the forearm on the hand plate can be fully covered, and the real-time pressure data of the respective corresponding areas are synchronously and continuously collected for obtaining the force distribution data of the forearm to determine the force distribution of the forearm; a positioning pin used to reliably fix and quickly release the swing angle of the forearm support hand plate around the rotation axis; the adjustment assembly comprises Stator guide rail, used to form a high-precision linear motion pair with the mover assembly, to provide guidance for the linear displacement of the small-arm support plate relative to the large-arm support plate; Mover, used to adjust the relative spacing between the small-arm support plate and the large-arm support plate; Rotary shaft, coaxially arranged inside the mover, used to adjust the included angle between the small-arm support mechanism and the large-arm support mechanism.

3. The adjustable lateral position handrail based on user position monitoring of claim 2, wherein, Further comprising, A data analysis unit, configured to determine the large-arm force distribution main shaft and the large-arm force deviation state according to the large-arm force data collected by the first pressure sensor group, determine the small-arm force distribution main shaft and the small-arm force deviation state according to the small-arm force data collected by the second pressure sensor group, and obtain the spacing between the large-arm support plate and the small-arm support plate based on the force pressure distribution of the arm on the large-arm support mechanism and the small-arm support mechanism.

4. The adjustable lateral position support frame based on user position monitoring according to claim 3, wherein The large-arm support mechanism angle adjustment process comprises The geometric center of the large-arm support plate of the large-arm support mechanism is set as a reference, and a preset large-arm support range is set; The data analysis unit acquires data of the first pressure sensor group embedded in the large-arm support mechanism at a preset detection period, and obtains the force distribution main shaft and the force deviation state of the arm on the large-arm support mechanism in real time, and determines whether to adjust according to whether the obtained large-arm force distribution main shaft is responsive to the preset large-arm support range; If the large-arm force distribution main shaft exceeds the preset large-arm support range, the data analysis unit obtains the force distribution main shaft deviation of the large-arm support mechanism, and determines the adjustment amount and direction of the initial angle of the large-arm support mechanism based on the deviation of the force distribution main shaft and a preset adjustment coefficient.

5. The adjustable lateral position support frame based on user position monitoring according to claim 4, wherein The large-arm support mechanism suspension determination process comprises Based on the large-arm support mechanism angle adjustment process, the data analysis unit obtains the small-arm force distribution main shaft on the small-arm support mechanism in real time, and immediately suspends the large-arm support mechanism angle adjustment if the small-arm force distribution main shaft exceeds the preset support range of the small-arm support mechanism.

6. The adjustable lateral position support frame based on user position monitoring according to claim 5, wherein The small-arm support mechanism adjustment process comprises Based on the current large-arm support mechanism suspension position or the large-arm support mechanism angle adjustment completion position, the data analysis unit obtains data of the second sensor group embedded in the small-arm support mechanism, analyzes the force distribution main shaft and the force distribution main shaft deviation of the small arm on the small-arm support mechanism, and determines the angle adjustment amount of the small-arm support mechanism based on the adjustment proportion coefficient set by the small-arm support mechanism and the radial deviation vector of the geometric center of the small arm and the small-arm support plate.

7. The adjustable lateral position support frame based on user position monitoring according to claim 6, wherein The data analysis unit obtains the force main shaft deviation of the small arm on the small-arm support mechanism, and determines that the small-arm support mechanism adjustment is completed if the force distribution main shaft of the small arm on the small-arm support mechanism is within the preset support range of the small-arm support plate. ​ 8. The adjustable lateral position support frame based on user position monitoring according to claim 7, characterized in that, the large arm support mechanism correction and verification process, after the initial angle adjustment of the small arm support mechanism, if the initial angle adjustment of the small arm support mechanism is completed and the force distribution main shaft of the large arm in the large arm support mechanism exceeds the preset support range, the data analysis unit obtains the deviation of the force distribution main shaft of the large arm in the large arm support mechanism for angle correction; based on the maximum pressure position of the arm on the lateral position support frame, whether to adjust the distance between the large arm support mechanism and the small arm support mechanism and the distance adjustment method are determined; the data analysis unit obtains the force distribution main shaft of the large arm in the large arm support mechanism, and if the force distribution main shaft of the large arm in the large arm support mechanism is within the preset support range, the angle adjustment of the large arm support mechanism is stopped; wherein, based on the classification of the maximum pressure position of the arm on the lateral position support frame, the distance adjustment method is determined, in the first force condition, if the maximum pressure of the arm on the support frame is at the edge of the small arm support mechanism, it is determined that the distance between the large arm support mechanism and the small arm support mechanism is too large, and the adjustment assembly controls to automatically reduce the distance between the large arm support mechanism and the small arm support mechanism; in the second force condition, if the maximum pressure of the arm on the support frame is at the edge of the large arm support mechanism, it is determined that the distance between the large arm support mechanism and the small arm support mechanism is too small, and the adjustment assembly controls to automatically expand the distance between the large arm support mechanism and the small arm support mechanism.

9. The adjustable lateral position support frame based on user position monitoring according to claim 8, characterized in that, the large arm support mechanism and the small arm support mechanism adjustment completion state process, the data analysis unit obtains the force distribution main shaft of the arm in the large arm support mechanism and the small arm support mechanism according to the arm support data of the first pressure sensor group embedded in the large arm support mechanism and the second pressure sensor group embedded in the small arm support mechanism, and if the force main shaft distribution of the arm does not exceed the preset support range and the maximum pressure of the lateral position support frame does not appear in the edge area, the adjustment of the large arm support mechanism and the small arm support mechanism is completed.

10. The adjustable lateral position support frame based on user position monitoring according to claim 1, characterized in that, the manual mode of the lateral position support frame, by obtaining the actual posture of the large arm and the small arm, the spatial form of the adjustment ball hinge, the mover and the positioning pin is determined to meet the demand of fixing the spatial position of the large arm and the small arm; by manually operating the ball hinge, the spatial angle of the large arm support hand plate is adjusted; by pulling out or rotating the positioning pin, the fixation and release of the swing angle of the small arm support hand plate are realized, so as to manually adjust and lock; by directly manually changing the relative position of the mover assembly on the stator slide rail, the distance between the small arm support hand plate and the large arm support hand plate is adjusted.

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