Hip replacement post-operation body position control system based on intelligent identification

Abstract

The invention relates to a hip replacement post-operation body position control system based on intelligent identification, and belongs to the technical field of medical instruments, the hip replacement post-operation body position control system comprises a waist fixing and limiting belt, two sides of the waist fixing and limiting belt are provided with fixing belt assembly connecting plates, the waist fixing and limiting belt is respectively connected with an elastic fixing belt and a rigid fixing belt through sliding locking grooves, and the inner side of the rigid fixing belt is provided with an adaptive limiting inflatable bag. A limiting fixing table is arranged at the front end of the waist fixing limiting belt and connected with a quarter-arc rotating plate through a rotating hinge fixing plate, a rotating connecting rod is arranged in an outer arc sliding groove of the rotating plate, and the lower end of the connecting rod is connected with a thigh inner side limiting fixing sleeve through a fixing connecting plate. The thigh outer side movable limiting frame comprises an electric rotating unit capable of rotating in multiple directions and is connected with the thigh outer side fixing plate through a length adjusting mechanism. The system intelligently coordinates all execution units through the central controller, active protection under multiple postures of lying in bed, sitting up, walking and the like is achieved, the movement range of hip joints can be dynamically limited, timely intervention is conducted when dangerous actions occur, the joint dislocation risk is effectively reduced, and rehabilitation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to a postoperative positioning control system based on intelligent recognition after hip replacement surgery. Background Technology

[0002] Hip replacement surgery is an effective treatment for end-stage hip joint disease, but dislocation of the artificial joint during postoperative rehabilitation is a serious complication. Clinical statistics show that the first three months after surgery are a high-risk period for dislocation, mainly due to patients unintentionally adopting dangerous postures. Currently, trapezoidal abduction pillows are mainly used for position management in clinical practice, but they have the following limitations: they are only suitable for bedridden situations and cannot provide protection when sitting up or walking; they rely on patients' conscious use, and unconscious movements at night are difficult to avoid; and they lack the ability to actively intervene and cannot effectively prevent dangerous movements in their early stages.

[0003] Some intelligent attempts have emerged in existing technologies, such as integrating angle sensors into rehabilitation clothing to send alarms to mobile phones wirelessly when a dangerous angle is detected. However, these solutions only achieve monitoring and alarm functions and lack substantial physical intervention capabilities. Other research has attempted to apply exoskeleton robot technology to the rehabilitation field, but its rigid structure results in bulky and noisy devices that severely affect patients' daily activities and sleep quality.

[0004] Therefore, there is an urgent need in this field for a body position control system that can provide active, intelligent, and non-intrusive protection in a variety of everyday postures, ensuring both the reliability of the protection and the comfort of wearing and the convenience of daily use. Summary of the Invention

[0005] In view of this, the purpose of this invention is to propose a post-hip replacement surgery positioning control system based on intelligent recognition. This system integrates a flexible fixation unit consisting of a lumbar fixation belt and an adaptive inflatable bladder, a mechanical limiting unit consisting of a quarter-circle rotating plate and rotation angle limiting holes, a multi-degree-of-freedom active intervention unit consisting of an X-axis electric rotating mechanism and a Z-axis electric rotating mechanism, an intelligent control unit supporting multi-posture dynamic adjustment, and an adjustable fixation structure adaptable to individual differences. This addresses the problems in existing technologies where traditional abduction pillows are only suitable for bedridden scenarios, intelligent monitoring devices lack physical intervention capabilities, rigid exoskeleton devices affect daily activities, and single protection modes cannot meet multi-posture protection needs.

[0006] This invention is achieved through the following technical solution:

[0007] A postoperative positioning control system based on intelligent recognition for hip replacement surgery includes a lumbar fixation and limiting belt, an inner thigh limiting clamp, a left lateral thigh movable limiting frame, a right lateral thigh movable limiting frame, and a central controller.

[0008] The waist fixing limit belt is provided with fixing belt assembly connecting plates on both sides, and the inner and outer sides of the fixing belt assembly connecting plates are provided with sliding locking grooves.

[0009] The waist fixing and limiting belt includes an elastic fixing belt and a rigid fixing belt. The elastic fixing belt is slidably engaged on the far side of the sliding locking groove, and the rigid fixing belt is slidably engaged on the near side of the sliding locking groove.

[0010] An adaptive limiting inflatable bladder is provided on the inner side of the rigid fixing belt;

[0011] A limiting fixing platform is fixedly provided at the middle of the front end of the rigid fixing belt, and two rotating hinge fixing plates that rotate around the X-axis are symmetrically arranged on the middle of the limiting fixing platform.

[0012] A quarter-circle rotating plate that can rotate around the Y-axis is fixedly installed on the lower plate of each of the rotating hinge fixing plates, and a rotating connecting rod is slidably installed in the outer arc groove of each of the quarter-circle rotating plates;

[0013] A fixed connecting plate is provided below each of the rotating connecting rods, and a thigh inner side limiting and fixing sleeve is fixedly provided on each of the fixed connecting plates;

[0014] The left thigh lateral movable limiting frame and the right thigh lateral movable limiting frame have the same structure and are symmetrically arranged;

[0015] The movable limiting frame on the outer side of the left thigh includes a semi-circular rotating sleeve, which is fixedly installed below the fixing belt assembly connecting plate, with the arc surface of the semi-circular rotating sleeve facing the side away from the human body.

[0016] A sliding connecting plate is slidably disposed on the arc surface of the semi-circular rotating sleeve, and the sliding trajectory of the sliding connecting plate rotates around the Y-axis.

[0017] A Z-axis electric rotating machine is fixedly installed on the far-human extension fixing plate of the sliding connecting plate, and the rotation output shaft of the Z-axis electric rotating machine faces the ground.

[0018] The output end of the Z-axis electric rotary machine is fixedly provided with a rotating connecting frame, and the lower end of the rotating connecting frame is provided with a circular rotating sleeve.

[0019] An X-axis electric rotating machine is fixedly installed on the far side of the human body of the circular rotating sleeve, and the output shaft of the X-axis electric rotating machine faces the human body end.

[0020] A rotating disk is fixedly installed at the output end of the output shaft of the X-axis electric rotary machine, and the rotating disk is rotatably disposed inside the circular rotating sleeve;

[0021] A connecting plate is fixedly installed at the lower end of the rotating disk, and a length adjustment hole is opened on the lower surface of the connecting plate;

[0022] A length adjustment plate is fixedly installed on the far side of the length adjustment hole, and a fixing plate on the outer side of the left thigh is fixedly installed on the inner side of the length adjustment plate in the direction close to the human body.

[0023] The central controller is connected to the X-axis electric rotary motor, the Z-axis electric rotary motor, and the adaptive limiting inflatable bladder via wiring.

[0024] Furthermore, each of the inner thigh limiting and fixing sleeves is equipped with a detachable limiting and fixing strap, which forms a closed cylindrical structure with the inner thigh limiting and fixing sleeve.

[0025] Furthermore, each of the quarter-circle rotating plates has a rotation angle limiting hole on its front end surface, and a limiting pin can be inserted into the rotation angle limiting hole to restrict the sliding angle of the rotating connecting rod in the outer arc groove.

[0026] Furthermore, the sliding connecting plate is connected to the arc surface of the semi-circular rotating sleeve through a sliding fit, enabling the sliding connecting plate to rotate around the Y-axis.

[0027] Furthermore, the rotating disk is rotatably mounted inside the circular rotating sleeve via a bearing structure.

[0028] Furthermore, the length adjustment plate is fixedly connected to the connecting fixing plate by screws, and the position of the length adjustment plate can be adjusted along the length adjustment hole.

[0029] Furthermore, all parts that come into contact with the human body are rounded, and all inner surfaces that come into direct contact with the human body are fitted with flexible pads.

[0030] Furthermore, the central controller is connected to the medical staff's terminal via a wireless communication module.

[0031] The beneficial effects of this invention are as follows:

[0032] This invention employs a posture control system that integrates multi-posture active protection and intelligent intervention mechanisms. Through the synergistic action of a dynamically adjustable lumbar support belt and medial and lateral thigh restraint devices, it provides continuous protection for patients in various daily postures, including lying down, sitting up, and walking. The organic combination of intelligent recognition and active intervention mechanisms effectively prevents dangerous postures in their early stages, significantly reducing the risk of artificial joint dislocation. The use of flexible materials and an adjustable structure ensures both reliability and comfort, effectively improving patient compliance. The system's intelligent control unit allows for personalized setting of protection parameters, dynamically adjusting the protection range according to the patient's recovery stage. This provides comprehensive, multi-scenario safety assurance for post-hip replacement surgery rehabilitation, greatly reducing the workload of medical staff. Attached Figure Description

[0033] Figure 1 For the overall assembly structure drawing;

[0034] Figure 2 Front view of the overall assembly structure;

[0035] Figure 3 Side view of the overall assembly structure;

[0036] Figure 4 Top view of the overall assembly structure;

[0037] Figure 5 A cross-sectional view of the quarter-circle rotating plate;

[0038] Figure 6 This is a sectional view of the circular rotating sleeve section.

[0039] Figure 7 This is a control relationship diagram.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100. Waist fixing and limiting belt; 110. Fixing belt assembly connecting plate; 120. Sliding locking groove; 130. Elastic fixing belt; 140. Rigid fixing belt; 150. Adaptive limiting inflatable bag; 160. Miniature air pump; 200. Inner thigh limiting clamp; 210. Limiting fixing platform; 220. Rotating hinge fixing plate; 230. Quarter-circle rotating plate; 231. Outer arc sliding groove; 240. Rotating connecting rod; 250. Fixing connecting plate; 260. Inner thigh limiting fixing sleeve; 270. Detachable limiting fixing belt; 232. Rotation angle limiting hole; 233. Limiting pin; 300. Left outer thigh movable limiting frame; 310. Semi-circular rotating sleeve; 311. Arc-shaped slide rail; 320. Sliding connecting plate; 321. T-shaped slider; 330 340. Extension fixing plate; 350. Z-axis electric rotating machine; 351. Rotating connecting frame; 360. Circular rotating sleeve; 370. X-axis electric rotating machine; 380. Rotating disc; 381. Connecting fixing plate; 390. Length adjustment hole; 392. Left thigh outer side fixing plate; 400. Right thigh outer side movable limit frame; 410. Semi-circular rotating sleeve; 420. Sliding connecting plate; 430. Extension fixing plate; 440. Z-axis electric rotating machine; 450. Rotating connecting frame; 451. Circular rotating sleeve; 460. X-axis electric rotating machine; 470. Rotating disc; 480. Connecting fixing plate; 481. Length adjustment hole; 490. Length adjustment plate; 492. Right thigh outer side fixing plate; 700. Central controller. Detailed Implementation

[0042] like Figure 1-7 As shown, one embodiment of the present invention provides a post-hip replacement surgery positioning control system based on intelligent recognition, mainly comprising a lumbar fixation and limiting belt 100, an inner thigh limiting clamp 200, a left outer thigh movable limiting frame 300, a right outer thigh movable limiting frame 400, and a central controller 700. The entire system is based on ergonomic design and establishes a clear spatial coordinate system: the direction of the human torso is the Z-axis, the straight line direction of the human arms outstretched is the X-axis, and the direction perpendicular to the front of the human body and simultaneously perpendicular to the X-axis is the Y-axis.

[0043] The lumbar fixation belt 100 serves as the basic support structure of the entire system, with symmetrical fixing belt assembly connection plates 110 on both sides. The fixing belt assembly connection plates 110 are made of high-strength composite material, with precisely machined sliding locking grooves 120 on both their inner and outer sides. The sliding locking grooves 120 employ a special T-shaped structure design, ensuring the stability and reliability of the connection. The lumbar fixation belt 100 consists of two main parts: an elastic fixing belt 130 and a rigid fixing belt 140. The elastic fixing belt 130 is made of highly elastic medical-grade material, and its specially designed T-shaped head precisely slides and engages with the distal surface of the sliding locking groove 120. This design allows the elastic fixing belt 130 to closely conform to the patient's lumbar curve while maintaining appropriate elastic tension. The rigid fixing belt 140 is made of a medical polymer material with a certain degree of rigidity, and its T-shaped head slides and engages with the proximal surface of the sliding locking groove 120, providing stable basic support for the entire system.

[0044] An adaptive limiting inflatable bladder 150 is tightly adhered to the inner surface of the rigid fixation band 140. This inflatable bladder is made of medical-grade flexible material and is internally divided into multiple independent chambers. The adaptive limiting inflatable bladder 150 is reliably connected to a micro-pump 160 via a precision micro-tubular system. The micro-pump 160 is fixedly installed on the outer side of the rigid fixation band 140. This arrangement ensures the effectiveness of the inflation system without affecting the patient's comfort.

[0045] A limiting fixing platform 210 is securely fixed at the front center of the rigid fixing belt 140. The limiting fixing platform 210 is made of lightweight, high-strength metal. Two rotating hinge fixing plates 220, which can flexibly rotate around the X-axis, are symmetrically installed on the left and right sides of the center of the limiting fixing platform 210. This symmetrical design ensures the system's balance and stability. A quarter-circle rotating plate 230, which can smoothly rotate around the Y-axis, is fixedly installed on the lower plate of each rotating hinge fixing plate 220 via a precision bearing structure. This dual-rotation structure allows the system to adapt to the natural movement of the human body in various postures. An outer arc groove 231 is precisely machined on the outer arc surface of each quarter-circle rotating plate 230. The groove employs a special guide structure design to ensure smoothness and accuracy during movement.

[0046] Each outer arc-shaped sliding groove 231 is internally fitted with a rotating connecting rod 240, which is made of high-strength stainless steel. Its lower end is securely connected to a fixed connecting plate 250 via a precision threaded structure. Each fixed connecting plate 250 is securely mounted with an inner thigh limiting fixation sleeve 260, made of medical-grade silicone, which has excellent biocompatibility and flexibility. Each inner thigh limiting fixation sleeve 260 has a detachable limiting fixation strap 270 at its open end, featuring a Velcro structure for easy adjustment according to the patient's leg circumference. The front surface of each quarter-circle rotating plate 230 has multiple rows of rotation angle limiting holes 232, evenly distributed along the arc surface. By inserting limiting pins 233 into the limiting holes 232 at different positions, the sliding range of the rotating connecting rod 240 within the outer arc-shaped sliding groove 231 can be precisely controlled, thereby achieving personalized limitation of the hip joint range of motion for patients at different stages of rehabilitation.

[0047] The left thigh lateral movable limiting frame 300 and the right thigh lateral movable limiting frame 400 adopt the same structural design and are symmetrically arranged on the left and right sides of the human body. Taking the left thigh lateral movable limiting frame 300 as an example, its core component includes a semi-circular arc rotating sleeve 310. The semi-circular arc rotating sleeve 310 is vertically fixed to the lower position of the fixing belt assembly connecting plate 110 by high-strength bolts, and the arc surface of the semi-circular arc rotating sleeve 310 is precisely facing the side away from the human body. An arc-shaped slide rail 311 is precisely machined on the arc surface of the semi-circular arc rotating sleeve 310. A sliding connecting plate 320 is slidably installed inside the arc-shaped slide rail 311. The sliding connecting plate 320 forms a precise fit with the arc-shaped slide rail 311 through a specially designed T-shaped slider 321 on its back. This fit ensures that the sliding connecting plate 320 can rotate smoothly around the Y-axis.

[0048] An extension fixing plate 330 is securely fixed to the side of the sliding connecting plate 320 away from the human body. A Z-axis electric rotary motor 340 is securely mounted on the vertical surface of the extension fixing plate 330, with its output shaft precisely facing the ground. The output end of the Z-axis electric rotary motor 340 is reliably connected to a rotating connecting frame 350 via a high-precision coupling. A circular rotating sleeve 351 is carefully designed at the lower end of the rotating connecting frame 350. An X-axis electric rotary motor 360 is securely mounted to the side of the circular rotating sleeve 351 away from the human body, with its output shaft precisely facing the human body. A rotating disk 370 is fixedly connected to the output end of the X-axis electric rotary motor 360. The rotating disk 370 is smoothly rotated within the internal space of the circular rotating sleeve 351 via a high-precision ball bearing structure. This bearing structure ensures smooth rotation and low noise characteristics.

[0049] A connecting plate 380 is securely connected to the lower end of the rotating disc 370. A length adjustment hole 381 is precisely formed on the lower surface of the connecting plate 380. A length adjustment plate 390 is reliably fixed to the side of the length adjustment hole 381 away from the body via an adjusting screw. A left thigh lateral fixation plate 392 is securely installed on the inner side of the length adjustment plate 390, closer to the body. A flexible pad is adhered to the inner surface of the left thigh lateral fixation plate 392. The flexible pad is made of memory foam material, which has good pressure dispersion characteristics. The left thigh lateral fixation plate 392 is reliably fixed by an adjustable strap made of elastic fabric material, equipped with a quick-release buckle for easy donning and doffing.

[0050] The right thigh lateral movable limit frame 400 has a structure that is completely symmetrical with the left side, including a semi-circular rotating sleeve 410, a sliding connecting plate 420, an extension fixing plate 430, a Z-axis electric rotating mechanism 440, a rotating connecting frame 450, a circular rotating sleeve 451, an X-axis electric rotating mechanism 460, a rotating disc 470, a connecting fixing plate 480, a length adjustment hole 481, a length adjustment plate 490, and a right thigh lateral fixing plate 492. The connection relationship of all these components is completely symmetrical with that of the left thigh lateral movable limit frame 300.

[0051] The central controller 700, serving as the intelligent control core of the entire system, is fixedly installed on the side of the waist-supporting restraint belt 100. The central controller 700 is reliably connected to actuators such as the X-axis electric rotary motors 360 and 460, the Z-axis electric rotary motors 340 and 440, and the miniature air pump 160 via waterproof cables. The central controller 700 integrates a high-performance microprocessor and a wireless communication module, enabling it to establish a stable wireless connection with the monitoring terminal used by medical personnel. All surfaces of components in contact with the human body are treated with smooth, rounded edges, and flexible padding is laid on all inner areas in direct contact with the body to ensure patient comfort and safety.

[0052] In this embodiment, the system must first be worn and initialized. The patient properly wraps the elastic fixation strap 130 around the lower back and accurately inserts the T-shaped clip into the distal surface of the sliding locking groove 120. Next, the rigid fixation strap 140 is placed at the front of the waist and abdomen, and the T-shaped clip is accurately inserted into the proximal surface of the sliding locking groove 120. The micro air pump 160 is activated to inflate an appropriate amount of gas into the adaptive limiting airbag 150 until the central controller 700 displays that the internal pressure has reached the preset safe value. This process ensures that the waist fixation and limiting strap 100 forms a firm and comfortable fit with the patient's waist and abdomen. Subsequently, the inner thigh limiting fixation sleeve 260 is properly fitted to the inner thigh root position, and the detachable limiting fixation strap 270 is wrapped around the thigh and reliably fixed to form a complete closed cylindrical structure. According to the patient's specific rehabilitation stage requirements, a suitable hole is selected in the rotation angle limiting hole 232 of the quarter-circle rotating plate 230 to insert the limiting pin 233, setting the safe range of motion for thigh adduction and abduction. Next, accurately place the left and right lateral thigh fixation plates 392 and 492 at the mid-section of the lateral thigh. Adjust the installation position of the length adjustment plate 390 to ensure good contact between the fixation plates and the skin surface, and secure them reliably using adjustable straps. Set the safe rotation angle ranges of the X-axis electric rotators 360 and 460 and the Z-axis electric rotators 340 and 440 through the human-machine interface of the central controller 700. For example, during the first week of postoperative rehabilitation, the hip flexion range of motion can be set to 0 to 60 degrees, and the abduction range of motion to 0 to 20 degrees. Finally, the central controller 700 automatically drives each electric rotator to perform an initialization calibration procedure, detects the status of all sensor signals, and uploads the system readiness status to the medical staff monitoring terminal via the wireless communication module.

[0053] In a bed-resting scenario, when the patient remains supine, the medial thigh limiting clamp 200 effectively restricts thigh adduction through the mechanical limiting action of the limiting pin 233. If the patient unintentionally attempts excessive thigh adduction, the rotating connecting rod 240 will slide within the outer arc groove 231 until it contacts the limiting point, thereby preventing further dangerous movements. Simultaneously, the X-axis electric rotating mechanisms 360 and 460 of the lateral thigh movable limiting frames 300 and 400 are in a low-power standby state, maintaining the neutral position of the thigh.

[0054] When a patient needs to transition from a bedridden to a sitting position, the hip flexion angle gradually increases. The central controller 700 monitors the hip joint angle changes in real time using a high-precision angle sensor. When the joint angle approaches the set safety limit, the X-axis electric rotators 360 and 460 immediately activate, applying appropriate counter-torque through the linkage mechanism between the rotating disc 370 and the connecting fixing plate 380, effectively limiting further hip flexion. If the system detects that the patient's flexion movement is too rapid, the electric rotators can respond quickly, outputting a precisely calculated resistance torque to gently and effectively prevent dangerous movements.

[0055] In scenarios where patients are walking, when the patient is walking normally, the Z-axis electric rotary actuators 340 and 440 intelligently control the sliding connecting plates 320 and 420 to adaptively slide around the Y-axis to match the natural changes in the human gait. When the system detects abnormal internal or external rotation of the hip joint through sensors, the Z-axis electric rotary actuators automatically adjust the relative position of the sliding connecting plates, using a clever lever principle to help correct abnormal postures. The central controller 700 continuously records and analyzes the patient's gait characteristic data. If the system continuously detects dangerous movement patterns, it will issue an alarm through the built-in miniature vibration motor to alert the patient.

[0056] In special protective scenarios during nighttime sleep, the system automatically switches to high-sensitivity monitoring mode. The electric rotator of the 300 and 400 lateral thigh movement limiter continuously monitors the patient's unconscious movements during sleep. For example, if the patient over-adducts the thigh when turning over, the X-axis electric rotator will immediately intervene to limit the range of thigh movement. At the same time, it will gently wake the patient through micro-vibration, ensuring safety without affecting sleep quality.

[0057] The adaptive limiting inflatable bladder 150 dynamically adjusts pressure according to changes in the patient's position. When the patient changes from a supine to a sitting position, the pressure distribution in the lumbar and abdominal area changes significantly. The central controller 700 intelligently controls the micro-pump 160 to release pressure in a timely manner to prevent excessive local pressure. When the patient returns to a supine position, the system re-inflates to the optimal fit pressure. The flexible padding is made of medical-grade material with excellent breathability. The central controller 700 periodically monitors the temperature data at the skin contact points. If an abnormal increase in local temperature is detected, it automatically adjusts the output parameters of the electric rotating mechanism to reduce frictional heat generation. The length adjustment plate 390 is designed to allow adjustment of the relative position of the fixation plate according to the specific thickness of the patient's thigh, ensuring even force distribution. The central controller 700 analyzes the patient's daily activity patterns through advanced intelligent algorithms, automatically optimizing the safe movement parameters of each joint to achieve a truly personalized rehabilitation training program.

[0058] When the electric motor detects abnormal resistance, such as when the device is accidentally jammed by a foreign object, the system will automatically switch to free movement mode to avoid accidental injury to the patient. When the system battery is low, it will actively send an alarm message through the wireless communication module and gradually reduce the intensity of active intervention, prioritizing the maintenance of basic mechanical limit functions to ensure the patient's basic safety.

[0059] This embodiment constructs a complete integrated protection system by organically integrating a flexible fixing structure, a mechanical limiting structure, and a multi-degree-of-freedom active intervention structure. Through the synergistic action of the lumbar fixation belt 100 and the inner and outer thigh limiting devices, dynamic control of the hip joint's range of motion is achieved: the elastic fixing belt 130 and the rigid fixing belt 140 of the lumbar fixation belt form a stable connection through a sliding locking groove 120, and with the automatic pressure adjustment function of the adaptive limiting airbag 150, ensure a close fit between the device and the waist and abdomen; the inner thigh limiting clamp 200 physically restricts the thigh's adduction and abduction angles through the sliding engagement of a quarter-circle rotating plate 230 and a rotating connecting rod 240; the outer thigh movable limiting frames 300 and 400 dynamically control the hip joint's flexion and rotation ranges through multi-directional adjustment via X-axis and Z-axis electric rotating mechanisms. This multi-component collaborative working mechanism enables the system to provide all-round protection in different scenarios such as lying down, sitting up, and walking, effectively avoiding the limitation of traditional abduction pillows being only suitable for lying down.

[0060] The intelligent intervention system constructs a real-time protection network: the central controller 700 monitors data from various sensors in real time, and when it detects a dangerous posture or movement, it immediately drives the electric rotating motor to output a reverse torque to block the movement in its early stages; the system can dynamically adjust activity parameters according to the rehabilitation stage to achieve personalized rehabilitation training; through the wireless communication module, medical staff can remotely monitor the patient's condition and adjust protection parameters, greatly reducing the burden of medical monitoring.

[0061] The flexible padding distributes skin pressure, preventing localized pressure sores; the adaptive limiting airbag 150 automatically adjusts its internal pressure according to changes in body position, maintaining optimal fit; the length adjustment plate 390 allows for adjustment of the fixation position based on individual differences, ensuring even force distribution. These designs significantly improve patient comfort and ensure long-term adherence.

[0062] In this embodiment, the central controller 700 is remotely connected to the monitoring system of the medical station, which is beneficial for medical staff to monitor patient position data and system status in real time and make remote parameter adjustments.

[0063] In this embodiment, all flexible pads are made of medical-grade silicone sponge material, which helps to ensure patient comfort and skin breathability when wearing them.

[0064] In this embodiment, the detachable limiting and fixing strap 270 adopts a Velcro structure, which can not only ensure the reliability of the fixation, but also facilitate quick putting on and taking off, and adapt to the usage needs of patients with different leg circumferences.

[0065] In this embodiment, all motors are covered with soundproof panels to prevent excessive noise, and all motors are powered by built-in rechargeable batteries.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A smart recognition based body position control system after hip arthroplasty, characterized in that: It includes a waist fixation and restraint belt, an inner thigh restraint clamp, a left outer thigh movable restraint frame, a right outer thigh movable restraint frame, and a central controller; The waist fixing limit belt is provided with fixing belt assembly connecting plates on both sides, and the inner and outer sides of the fixing belt assembly connecting plates are provided with sliding locking grooves. The waist fixing and limiting belt includes an elastic fixing belt and a rigid fixing belt. The elastic fixing belt is slidably engaged on the far side of the sliding locking groove, and the rigid fixing belt is slidably engaged on the near side of the sliding locking groove. An adaptive limiting inflatable bladder is provided on the inner side of the rigid fixing belt; A limiting fixing platform is fixedly provided at the middle of the front end of the rigid fixing belt, and two rotating hinge fixing plates that rotate around the X-axis are symmetrically arranged on the middle of the limiting fixing platform. A quarter-circle rotating plate that can rotate around the Y-axis is fixedly installed on the lower plate of each of the rotating hinge fixing plates, and a rotating connecting rod is slidably installed in the outer arc groove of each of the quarter-circle rotating plates; A fixed connecting plate is provided below each of the rotating connecting rods, and a thigh inner side limiting and fixing sleeve is fixedly provided on each of the fixed connecting plates; The left thigh lateral movable limiting frame and the right thigh lateral movable limiting frame have the same structure and are symmetrically arranged; The movable limiting frame on the outer side of the left thigh includes a semi-circular rotating sleeve, which is fixedly installed below the fixing belt assembly connecting plate, with the arc surface of the semi-circular rotating sleeve facing the side away from the human body. A sliding connecting plate is slidably disposed on the arc surface of the semi-circular rotating sleeve, and the sliding trajectory of the sliding connecting plate rotates around the Y-axis. A Z-axis electric rotating machine is fixedly installed on the far-human extension fixing plate of the sliding connecting plate, and the rotation output shaft of the Z-axis electric rotating machine faces the ground. The output end of the Z-axis electric rotary machine is fixedly provided with a rotating connecting frame, and the lower end of the rotating connecting frame is provided with a circular rotating sleeve. An X-axis electric rotating machine is fixedly installed on the far side of the human body of the circular rotating sleeve, and the output shaft of the X-axis electric rotating machine faces the human body end. A rotating disk is fixedly installed at the output end of the output shaft of the X-axis electric rotary machine, and the rotating disk is rotatably disposed inside the circular rotating sleeve; A connecting plate is fixedly installed at the lower end of the rotating disk, and a length adjustment hole is opened on the lower surface of the connecting plate; A length adjustment plate is fixedly installed on the far side of the length adjustment hole, and a fixing plate on the outer side of the left thigh is fixedly installed on the inner side of the length adjustment plate in the direction close to the human body. The central controller is connected to the X-axis electric rotary motor, the Z-axis electric rotary motor, and the adaptive limiting inflatable bladder via wiring.

2. The intelligent recognition based body position control system for hip replacement surgery of claim 1, wherein: Each of the inner thigh limiting and fixing sleeves is equipped with a detachable limiting and fixing strap, which forms a closed cylindrical structure with the inner thigh limiting and fixing sleeve.

3. The postoperative positioning control system based on intelligent recognition according to claim 1, characterized in that: Each of the quarter-circle rotating plates has a rotation angle limiting hole on its front end surface. A limiting pin can be inserted into the rotation angle limiting hole to limit the sliding angle of the rotating connecting rod in the outer arc groove.

4. The postoperative positioning control system based on intelligent recognition according to claim 1, characterized in that: The sliding connecting plate is connected to the arc surface of the semi-circular rotating sleeve through a sliding fit, so that the sliding connecting plate can rotate around the Y-axis.

5. The postoperative positioning control system based on intelligent recognition according to claim 1, characterized in that: The rotating disk is rotatably mounted inside the circular rotating sleeve via a bearing structure.

6. The postoperative positioning control system based on intelligent recognition according to claim 1, characterized in that: The length adjustment plate is fixedly connected to the connecting fixing plate by screws, and the position of the length adjustment plate can be adjusted along the length adjustment hole.

7. A post-hip replacement surgery positioning control system based on intelligent recognition according to claim 1, characterized in that: All parts that come into contact with the human body are rounded, and all inner surfaces that come into direct contact with the human body are fitted with flexible pads.

8. A post-hip replacement surgery positioning control system based on intelligent recognition according to claim 1, characterized in that: The central controller is connected to the medical staff's terminal via a wireless communication module.

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