CN111956226A

CN111956226A - Hip-knee joint postoperative rehabilitation system

Info

Publication number: CN111956226A
Application number: CN202010974028.0A
Authority: CN
Inventors: 王善付; 王建伟; 徐兵; 华臻; 王兰; 刘雷; 邵阳
Original assignee: Wuxi Hospital of Traditional Chinese Medicine
Current assignee: Wuxi Hospital of Traditional Chinese Medicine
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2020-11-20

Abstract

The invention provides a hip and knee joint postoperative rehabilitation system which comprises a force measuring subsystem, a vital sign monitoring subsystem, a rehabilitation knowledge propaganda and education subsystem, a joint dislocation prevention monitoring subsystem and a multifunctional power assisting subsystem. According to the invention, the load parameters corresponding to the patient are calculated through the force measuring subsystem, and the load force of the patient during walking is monitored in real time, so that the patient walks more scientifically and accurately at each step. The vital sign monitoring subsystem senses various vital sign changes of the patient when the patient walks in the field in real time, and the dynamic and multidimensional nursing on the life safety of the patient is realized. Through the rehabilitation knowledge propaganda and education subsystem, postoperative rehabilitation and nursing knowledge is displayed, and the patient can conveniently strengthen memory. The joint dislocation prevention monitoring subsystem dynamically monitors the rehabilitation action and walking gait of the patient in real time, and gives an early warning in time to prevent the occurrence of postoperative dislocation. The multifunctional power-assisted subsystem realizes the free switching of the patient among various body positions of sitting, standing and walking by folding and extending the cushion.

Description

Hip-knee joint postoperative rehabilitation system

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a hip and knee joint postoperative rehabilitation system.

Background

Hip-knee joint surgery is a general name of hip joint replacement surgery and knee joint replacement surgery, and hip and knee joint are the most complex and most stressed joints of human body. The main load bearing joint has high damage rate, and once the load bearing joint is attacked, the functions of the hip joint and the knee joint are limited, so that the life quality is seriously influenced. Artificial hip and knee joint replacement surgery has become a common operation for clinically solving serious hip and knee joint lesions.

The patient carries out hip knee joint postoperative, needs to carry out a series of rehabilitation training, in the middle of the patient leaves the bed and carries out the recovered activity, because patient's affected limb can not receive the atress too big, in order to protect the patient, prevents that the patient from causing the injury to the affected limb because self weight in the recovered process, and the doctor can restrict the weight that the affected limb of patient bore. The current clinical method is that the doctor puts the affected limb on the weighing machine, the patient is informed when the weight indicated by the weighing machine reaches the maximum weight prescribed by the medical advice, and the patient can control the stress of the affected limb not to exceed the limit in the rehabilitation process by the self feeling. Although the method is simple, the patient feels inaccurate, and the joint of the patient is easy to dislocate due to the over-limit stress in the rehabilitation process, so that the rehabilitation of the patient is influenced.

After hip and knee joint operation, a patient needs to perform reasonable rehabilitation exercise to ensure that the artificial joint can be better matched with the patient, and the function and the durability of the artificial joint are ensured. However, in the modern times when medical resources are more and more in shortage, in order to ensure the turnover rate of the sickbed, the hospital can make the patient return to home for rehabilitation after the wound of the patient is healed after operation. The patient lacks corresponding medical knowledge, and after going home, the patient mostly carries out simple rehabilitation training with the help of a walking aid, and the training systematicness is poor. Most of the walking aids can only move by hands, the function is simple, and the patient falls down easily due to unstable vital signs or various complications in the training process of the patient, so that secondary injury is caused to the patient.

Disclosure of Invention

The invention aims to provide a rehabilitation system, in particular to a hip and knee joint postoperative rehabilitation system which is simple in structure, convenient to operate, specially suitable for hip and knee joint postoperative rehabilitation, provided with a real-time force measuring function and a vital sign monitoring function, provided with a reminding and explaining function, integrated with sitting, standing and walking functions, complete in function and high in automation degree.

In order to solve the technical problems, the invention adopts the technical scheme that: a hip and knee joint postoperative rehabilitation system comprises a controller and a plurality of subsystems, wherein the subsystems comprise a force measuring subsystem, a vital sign monitoring subsystem, a rehabilitation knowledge propaganda and education subsystem, a joint dislocation prevention monitoring subsystem and a multifunctional power assisting subsystem, the subsystems are respectively connected with the controller,

the force measuring subsystem calculates the corresponding load parameters of the patient according to the operation mode of the patient, the weight parameters of the patient, the existing basic diseases of the patient, the bone density parameters of the patient and the postoperative time difference of the patient; monitoring the load bearing force of the patient after the lower limb is walking in real time through a force measuring device, and feeding monitoring data back to the controller;

the vital sign monitoring subsystem senses the changes of vital signs of blood pressure, heart rate and oxygen saturation of a patient when the patient walks rehabilitation exercise in a field in real time through the vital sign monitoring device, and sends monitoring information to the controller, so that early warning and automatic help calling are facilitated in time;

the rehabilitation knowledge propaganda and education subsystem displays videos, voices, characters and pictures through a display device and a loudspeaker device through a controller storage technology, displays rehabilitation knowledge of different operation modes of hip and knee joints, and facilitates memory strengthening and learning of patients;

the joint dislocation prevention monitoring subsystem dynamically monitors the rehabilitation action and walking gait of the patient in real time by arranging a dislocation prevention monitoring device on the hip, knee and waist of the patient, and sends monitoring information to the controller, so that early warning is facilitated in time, and the dislocation of the patient after operation is prevented;

the multifunctional power assisting subsystem adopts a power assisting instrument designed by module assembling materials, and meets different rehabilitation state requirements of a patient in multiple body positions according to different actions of the patient.

Further, the force measuring device is a pressure sensor, the pressure sensor comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, the first pressure sensor is arranged at the left sole of the foot of the patient, the second pressure sensor is arranged at the left heel of the foot of the patient, the third pressure sensor is arranged at the right sole of the foot of the patient, the fourth pressure sensor is arranged at the right heel of the foot of the patient, the four groups of pressure sensors are wirelessly connected with the controller, the controller is provided with a first wireless module for receiving monitoring information of the four groups of pressure sensors, the controller is provided with a calculation module and a processing module, the calculation module calculates the gravity threshold value borne by each affected limb of the patient, the calculation module sends the threshold value to the processing module, and the processing module receives the acquisition signal of the pressure sensor in real time and gives an alarm when the gravity borne by the affected limb exceeds the threshold value.

Furthermore, the pressure sensor is of a film type, the pressure sensor sequentially comprises an upper insulating layer, an upper conducting layer, an inner insulating layer, a lower conducting layer and a lower insulating layer from top to bottom, a plurality of through holes are formed in the inner insulating layer, and the pressure sensor is of a circular sheet shape.

Furthermore, the vital sign monitoring device is an intelligent bracelet, the intelligent bracelet comprises a shell, a chip is arranged inside the shell and is connected with various sensors, the various sensors comprise an optical heart rate sensor, an oxygen saturation level SPO2 sensor and an acceleration sensor, and the optical heart rate sensor is used for monitoring the heart rate of a patient; the blood oxygen saturation level SPO2 sensor is used to monitor the patient's blood oxygen saturation level; the acceleration sensor is used for judging the motion condition of the patient; the monitoring blood pressure adopts a photoelectric volume pulse wave signal, a precise waveform is obtained at a high sampling frequency, the pulse waveform detail is analyzed, and the current blood pressure value is accurately calculated through correction.

Further, intelligence bracelet includes the wrist strap, the wrist strap includes first wrist strap and second wrist strap, first wrist strap one end is connected casing one end, the first wrist strap other end is equipped with first buckle, second wrist strap one end is connected the casing other end, the second wrist strap other end is equipped with the second buckle, first buckle with the cooperation of second buckle forms closed ring, wears on patient's wrist.

Furthermore, a second wireless module is arranged on the chip, and the second wireless module is paired with the first wireless module to realize wireless transmission of the information on the chip and the controller.

Further, the controller includes storage module, last video, pronunciation, characters and the picture that is equipped with wide knee joint postoperative rehabilitation knowledge of storage module, the video the pronunciation the characters reach the picture passes through display device reaches speaker shows, display device is the display screen, speaker is the speaker, the display screen with the speaker with the controller is connected.

Furthermore, the anti-dislocation monitoring device is an infrared monitoring device, the infrared monitoring device releases linear infrared beams, and the rotation angle, the bending angle and the motion track of the joint are monitored through the bending and stretching conditions of the infrared beams and the joint of the patient.

Further, helping hand apparatus includes two U-shaped supports, two U-shaped support one left side one right side parallel placement, two the fixed cover of U-shaped support horizontal cross pole department is equipped with the handle cover, two be equipped with the support stull on a pair of parallel vertical pole of U-shaped support, it includes first support stull and second support stull to support the stull, first support stull is arranged in lower part in the U-shaped support, the second supports the stull and is arranged in upper portion in the U-shaped support, first support stull passes through folding device and connects cushion one end, the cushion other end is equipped with connecting device, works as after the cushion is folding, connecting device with the second supports the stull and connects, be equipped with fixed stull between two vertical poles of U-shaped support, works as after the cushion extends, the cushion is arranged in fixed stull top.

Further, the folding device is a rotary sleeve, the rotary sleeve is arranged on the lower surface of the seat cushion, the first cross brace is arranged in the rotary sleeve, the lower surface of the seat cushion and the opposite end of the rotary sleeve are provided with two fixed buckles, the two fixed buckles are respectively connected with the two fixed cross braces of the U-shaped support in a matched mode, two fixed hooks are arranged between the two fixed buckles, and the fixed hooks are connected with the second support cross brace in a matched mode.

The invention has the advantages and positive effects that:

1. according to the invention, individual parameters are input into a scientific AI rehabilitation evaluation system through a force measuring subsystem according to the operation mode of a patient, the weight parameter of the patient, the existing basic disease of the patient, the bone density parameter of the patient and the postoperative time difference of the patient, and the load bearing parameter corresponding to the patient is calculated, so that an accurate personalized rehabilitation scheme is obtained. The load bearing force of the patient after the lower limb postoperative walking is monitored in real time through the force measuring device, and monitoring data are fed back to the controller. Therefore, scientific feedback is provided for the patient, and the patient can walk more scientifically and accurately at each step. The weight of the patient on the ground after the operation is prevented from being controlled by the feeling, so that the recovery process is delayed due to timidity and dare of the patient; or the patient is not favorable for rehabilitation because of complications such as wound pain, bleeding, infection, joint dislocation and the like caused by excessive excitation and too early and excessive load bearing.

2. The vital sign monitoring subsystem senses the changes of vital signs such as blood pressure, heart rate, oxygen saturation and the like of a patient when the patient walks rehabilitation exercise in a field in real time through the intelligent wristband, and performs early warning and automatic help calling in time, so that the dynamic and multidimensional nursing on the life safety of the patient is realized. Avoids the problem that the rehabilitation of patients is influenced by the falling caused by the complications such as orthostatic hypotension, dizziness and the like which are easy to occur when the traditional walking aid is used for going to the ground after operation.

3. The rehabilitation knowledge propaganda and education subsystem of the invention utilizes AI artificial intelligence storage and multimedia technology, and displays the rehabilitation and nursing knowledge of different operation modes of hip and knee joint through forms of video, voice, characters, pictures and the like, thereby facilitating the propaganda and education modes of repeatable, on-demand and reinforcement memory learning for patients, and being beneficial to scientific rehabilitation of patients.

4. The joint dislocation prevention monitoring subsystem of the invention dynamically monitors the rehabilitation action and walking gait of the patient in real time by respectively arranging dislocation prevention monitoring devices on the hip, knee and waist, and gives an early warning in time to prevent the occurrence of postoperative dislocation.

5. Compared with the traditional rehabilitation walking aid, the multifunctional power-assisted subsystem only provides the function of a walking stick, and realizes the free switching of a patient among various body positions of sitting, standing and walking by folding and extending the cushion. Is beneficial to the continuous rehabilitation training of the patient, avoids the transition fatigue in the training process and is beneficial to the rehabilitation of the patient.

Drawings

Fig. 1 is a schematic diagram of the operation of an embodiment of the present invention.

Fig. 2 is a schematic view of a pressure sensor distribution according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a pressure sensor according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an intelligent bracelet according to an embodiment of the invention.

Fig. 5 is a schematic structural view of a retracted state of the power assisting apparatus seat cushion according to the embodiment of the invention.

Fig. 6 is a schematic structural diagram of the power assisting apparatus in an extending state of the seat cushion.

Fig. 7 is a schematic structural diagram of a telescopic device according to an embodiment of the present invention.

FIG. 8 is a schematic structural view of a universal wheel according to an embodiment of the present invention.

In the figure:

1. first pressure sensor 2, second pressure sensor 3, and third pressure sensor

4. A fourth pressure sensor 5, an upper insulating layer 6, an upper conductive layer

7. Inner insulating layer 8, lower conductive layer 9, lower insulating layer

10. Through hole 11, shell 12 and closed ring

13. First wrist strap 14, first buckle 15 and second buckle

16. A second wrist strap 17, a hand-held sleeve 18 and a U-shaped bracket

19. Fixed cross brace 20, universal wheel 21 and telescoping device

22. Rotating sleeve 23, cushion 24 and second support cross brace

25. Fixing hook 26, telescopic sleeve 27 and fixing buckle

28. A first supporting cross support 29, a second through hole 30, a first through hole

31. Telescopic rod 32, support seat 33 and brake device

34. A roller 35 and a bracket.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiments of the invention are further described below with reference to the accompanying drawings:

as shown in fig. 1, a hip and knee joint postoperative rehabilitation system comprises a controller and a plurality of subsystems, wherein the plurality of subsystems comprise a force measuring subsystem, a vital sign monitoring subsystem, a rehabilitation knowledge propaganda and education subsystem, a joint dislocation prevention monitoring subsystem and a multifunctional power assisting subsystem, and the plurality of subsystems are respectively connected with the controller.

The force measurement subsystem calculates the corresponding load parameters of the patient according to the operation mode of the patient, the weight parameters of the patient, the existing basic diseases of the patient, the bone density parameters of the patient and the postoperative time difference of the patient; the load bearing force of the patient after the lower limb postoperative walking is monitored in real time through the force measuring device, and monitoring data are fed back to the controller.

According to the embodiment, individual parameters are input into a scientific AI rehabilitation evaluation system through the force measuring subsystem according to the operation mode of the patient, the weight parameter of the patient, the existing basic disease of the patient, the bone density parameter of the patient and the postoperative time difference of the patient, and the load bearing parameter corresponding to the patient is calculated, so that an accurate personalized rehabilitation scheme is obtained. Load bearing strength of a patient after lower limb postoperative walking is monitored in real time through the force measuring device, and monitoring data are fed back to the controller. Therefore, scientific feedback is provided for the patient, and the patient can walk more scientifically and accurately at each step. The weight of the patient on the ground after the operation is prevented from being controlled by the feeling, so that the recovery process is delayed due to timidity and dare of the patient; or the patient is not favorable for rehabilitation because of complications such as wound pain, bleeding, infection, joint dislocation and the like caused by excessive excitation and too early and excessive load bearing.

Specifically, the controller is provided with a calculation module and a processing module, the calculation module calculates a gravity threshold value of each affected limb of the patient, the calculation module sends the threshold value to the processing module, and the processing module receives a signal acquired by the pressure sensor in real time and gives an alarm when the gravity of the affected limb exceeds the threshold value.

The force measuring device is a pressure sensor, the pressure sensor of the embodiment includes a first pressure sensor 1, a second pressure sensor 2, a third pressure sensor 3 and a fourth pressure sensor 4, as shown in fig. 2, the first pressure sensor 1 is disposed at the left sole of the foot of the patient, the second pressure sensor 2 is disposed at the left heel of the foot of the patient, the third pressure sensor 3 is disposed at the right sole of the foot of the patient, and the fourth pressure sensor 4 is disposed at the right heel of the foot of the patient. The four groups of pressure sensors are in wireless connection with the controller, and the controller is provided with a first wireless module for receiving monitoring information of the four groups of pressure sensors. The first wireless module may be a bluetooth module or a WiFi module.

Specifically, as shown in fig. 3, the pressure sensor of the present embodiment is of a film type, and the pressure sensor sequentially includes, from top to bottom, an upper insulating layer 5, an upper conductive layer 6, an inner insulating layer 7, a lower conductive layer 8, and a lower insulating layer 9, where the inner insulating layer 7 is provided with a plurality of through holes 10, and the pressure sensor is of a circular sheet shape.

The inner insulating layer 7 is a reinforced PET film, and in order to increase the deformation degree of the upper conductive layer 6 and the lower conductive layer 8 under the condition of external pressure, the inner insulating layer 7 is provided with a through hole 10 structure which is beneficial to the deformation of the inner insulating layer 7, so that the capacitance variation between the upper conductive layer 6 and the lower conductive layer 8 is more obvious, and the sensitivity to pressure is increased. The upper insulating layer 5 and the lower insulating layer 9 are made of reinforced PET films.

The pressure sensor measures stress signals of four points of the patient, namely the front and the back of the feet, the signals are simply processed and then transmitted to the controller through the wireless module, and the controller obtains the real-time stress of the four points of the patient, namely the front and the back of the feet by using the signals. The stress of the front point and the rear point on the same foot are added to obtain an approximate value of the gravity borne by the affected limb where the foot is located. The patient can set the position of the affected limb, the gravity threshold of the affected limb and the daily activity time threshold on the controller. The force measuring subsystem compares the input gravity threshold value with the bearing gravity of the affected limb in real time and gives an alarm when the input gravity threshold value exceeds the bearing gravity of the affected limb. In addition, the force measuring subsystem records the total time of the load of the pressure sensor by using a clock as the activity time of the patient on the day, and gives an alarm when the set daily activity time threshold value is exceeded. The controller can also judge whether the patient falls down according to the pressure data and send out an alarm. The specific implementation method comprises the following steps: when a patient falls down, the center of gravity of the body of the patient is abnormally shifted, such as forward tilting, backward tilting or left and right tilting. The shift in the center of gravity is reflected in the pressure data collected by the four sets of pressure sensors, for example, when the patient falls forward, the two sets of pressure sensors in the front of his left and right feet will bear most of the weight, while the two sets of pressure sensors in the back will bear little weight. Also, after the center of gravity shift is over, the pressure data collected by the four sets of pressure sensors will be almost zero due to the patient falling. The controller will determine whether the patient has fallen by identifying the shift in the center of gravity and whether the data from the pressure sensor is then substantially zero, and will issue an alarm. The force measuring subsystem evaluates the walking state of the patient at present by using a pattern recognition algorithm through data prestored in the force measuring subsystem, and the specific method comprises the following steps: a large amount of abnormal gait data are collected by the system to be used as an abnormal gait data set; a large amount of normal gait data are collected as a normal gait data set. The two groups of data are used for training a neural network, the network is stored in a controller, and the gait of the patient can be judged to be closer to the normal gait or the abnormal gait through the neural network, so that a doctor is helped to evaluate and correct the walking gait of the patient.

Specifically, the controller is a chip, a processor and the like with the above functional modules, and the controller can be arranged on an intelligent bracelet of the vital sign monitoring subsystem, can also be arranged on a power assisting instrument of the multifunctional power assisting subsystem through a shell, or can be directly loaded on a mobile device end such as a smart phone.

The vital sign monitoring subsystem, through vital sign monitoring devices, come the vital sign change of patient's blood pressure, patient's rhythm of the heart and patient's oxygen saturation when real-time perception patient goes to the ground walking rehabilitation exercise, send monitor information for the controller, be convenient for timely early warning and automatic call for help.

The vital sign monitoring subsystem of this embodiment passes through intelligent bracelet, comes vital sign changes such as blood pressure, rhythm of the heart, oxygen saturation when real-time perception patient goes to the ground walking rehabilitation exercise, and timely early warning and automatic distress call realize developments, multidimension nurse patient life safety. Avoids the problem that the rehabilitation of patients is influenced by the falling caused by the complications such as orthostatic hypotension, dizziness and the like which are easy to occur when the traditional walking aid is used for going to the ground after operation.

Specifically, as shown in fig. 4, vital sign monitoring devices is intelligent bracelet, and intelligent bracelet includes casing 11, and casing 11 is inside to be equipped with the chip, and multiple sensor is connected to the chip, and multiple sensor includes optics heart rate sensor, oxyhemoglobin saturation SPO2 sensor and acceleration sensor etc.. An optical heart rate sensor to monitor a patient's heart rate; a blood oxygen saturation level SPO2 sensor to monitor the patient's blood oxygen saturation level; the acceleration sensor is used for judging the motion condition of the patient; the monitoring blood pressure adopts a photoelectric volume pulse wave signal, a precise waveform is obtained at a high sampling frequency, the pulse waveform detail is analyzed, and the current blood pressure value is accurately calculated through correction.

Specifically, the optical heart rate sensor monitors the heart rate of a patient by adopting a photoelectric transmission measurement method, and specifically, the sensor contacting the bracelet with the skin can emit a beam of light to irradiate the skin to measure reflected/transmitted light. Blood absorbs light of a specific wavelength, and this wavelength is absorbed by the heart in large quantities each time the heart pumps blood, so that the heartbeat can be determined.

The blood oxygen saturation SPO2 sensor utilizes the difference of absorption ratio of hemoglobin and oxyhemoglobin in blood to infrared light and red light, simultaneously irradiates a finger with the infrared light and the red light by two LEDs, and measures the absorption spectrum of reflected light, thus measuring the blood oxygen content.

An acceleration sensor is a device that measures acceleration force by sensing acceleration and converting it into an electrical signal. By measuring the direction and the acceleration force, the accelerometer can judge whether the equipment is in a horizontal or vertical position and can judge whether the equipment moves, so that the step counting operation is achieved. The basic style of the acceleration sensor is two shafts and three shafts, the two shafts can only measure a plane, and the accuracy is to be improved; the three-axis sensor can better detect the positions of the X axis, the Y axis and the Z axis of the equipment in a three-dimensional space, and more accurate recording is realized.

The intelligent bracelet comprises a wrist strap, the wrist strap comprises a first wrist strap 13 and a second wrist strap 16, one end of the first wrist strap 13 is connected with one end of the shell 11, and the other end of the first wrist strap 13 is provided with a first buckle 14. One end of a second wrist strap 16 is connected with the other end of the shell 11, the other end of the second wrist strap 16 is provided with a second buckle 15, and a first buckle 14 is matched with the second buckle 15 to form a closed ring 12 to be worn on the wrist of a patient.

Preferably, the chip is provided with a second wireless module, and the second wireless module is paired with the first wireless module to realize wireless transmission of information on the chip and the controller. The second radio module is in the same principle as the first radio module.

The rehabilitation knowledge propaganda and education subsystem displays videos, voices, characters and pictures through the controller storage technology and the display device and the loudspeaker device, displays rehabilitation knowledge of different operation modes of hip and knee joints, and facilitates memory strengthening and learning of patients.

The rehabilitation knowledge propaganda and education subsystem of the embodiment utilizes AI artificial intelligence storage and multimedia technology, and shows the rehabilitation and nursing knowledge of different operation modes of hip and knee joints through forms such as videos, voices, characters and pictures, so that a patient can conveniently perform repeatable, on-demand and memory-enhanced learning propaganda and education modes, and scientific rehabilitation of the patient is facilitated.

Preferably, the controller includes storage module, is equipped with the video of wide knee joint postoperative rehabilitation knowledge, pronunciation, characters and picture on the storage module, and video, pronunciation, characters and picture pass through display device and speaker and show, and display device is the display screen, and speaker is the speaker, and the display screen is connected with the controller with the speaker.

When the controller loading was on intelligent bracelet, display device was the display screen of intelligent bracelet, and speaker is the speaker of intelligent bracelet. When the controller is loaded on mobile equipment such as a smart phone, the display device is a display screen of the mobile equipment such as the smart phone, and the speaker device is a speaker of the mobile equipment such as the smart phone. When the controller is arranged on the power assisting apparatus through the shell, the display screen and the loudspeaker are arranged on the outer surface of the shell and are respectively connected with the controller.

The joint dislocation prevention monitoring subsystem is used for dynamically monitoring the rehabilitation action and walking gait of the patient in real time by arranging a dislocation prevention monitoring device on the hip, knee and waist of the patient, sending monitoring information to the controller, and is convenient for early warning in time and preventing the dislocation of the patient after the operation.

Specifically, the anti-dislocation monitoring device is an infrared monitoring device which releases linear infrared beams and is used for monitoring the rotation angle, the bending angle and the motion track of the joint through the bending and stretching conditions of the infrared beams and the joint of the patient.

The anti-dislocation monitoring device can also be a multi-specification sensor, and specifically comprises an acceleration sensor, a gyroscope and a magnetometer. The three groups of sensors are integrated together, so that the bending angle and the rotation angle of the joint can be accurately measured. When the patient is monitored to perform rehabilitation exercise, the sensor combination can accurately acquire data, judge whether the rehabilitation exercise action of the patient is standard or not, and judge whether the completion quality meets the requirements of doctors or not, so that the doctors can conveniently perform follow-up rehabilitation guidance on the patient.

Compared with the traditional rehabilitation walking aid, the multifunctional power-assisted subsystem of the embodiment only provides the function of a walking stick, and realizes the free switching of a patient among various body positions of sitting, standing and walking by folding and extending the cushion. Is beneficial to the continuous rehabilitation training of the patient, avoids the transition fatigue in the training process and is beneficial to the rehabilitation of the patient.

Specifically, as shown in fig. 5 and 6, the assistive device of the present embodiment includes two U-shaped brackets 18, and the two U-shaped brackets 18 are disposed in parallel from left to right. The fixed cover of two U-shaped support 18 horizontal poles department all is equipped with the hand and holds cover 17, is equipped with the support stull on a pair of parallel vertical pole of two U-shaped supports 18, and the support stull includes first support stull 28 and second support stull 24, and lower part in U-shaped support 18 is arranged in to first support stull 28, and upper portion in U-shaped support 18 is arranged in to second support stull 24, and first support stull 28 passes through folding device and connects 23 one ends of cushion, and the cushion 23 other end is equipped with connecting device.

The folding device is a device for folding the seat cushion 23, and the folding device may have various structures as long as the above-described functions are realized. Specifically, the folding device provided in this embodiment is a rotary sleeve 22, the rotary sleeve 22 is fixedly disposed on the lower surface of the seat cushion 23, and the first support cross-brace 28 is disposed in the rotary sleeve 22. The lower surface of the cushion 23 is provided with two fixing buckles 27 at the opposite ends of the rotating sleeve 22, and the two fixing buckles 27 are respectively connected with the fixing crossbars of the two U-shaped brackets 18 in a matching way.

The connecting device is a device for connecting and fixing the cushion 23 and the second support cross-brace 24 after the cushion 23 is folded, and the connecting device can be of various structures as long as the functions are realized. Specifically, the connecting device provided in this embodiment is a fixing hook 25, the fixing hook 25 is disposed between two fixing buckles 27, and the fixing hook 25 is connected with the second support cross brace 24 in a matching manner. A fixed cross brace 19 is arranged between the two vertical rods of the U-shaped support 18, and the fixed cross brace 19 is connected with a fixed buckle 27 in a matching mode.

As shown in fig. 5, when the patient walks with the aid of the power assisting apparatus, the cushion 23 is folded, the cushion 23 rotates along the first support cross-brace 28, the cushion 23 is perpendicular to the ground, the fixing hook 25 is connected with the second support cross-brace 24, the patient is placed in the U-shaped space formed by the two U-shaped brackets 18 and the support cross-braces, and the two hands respectively hold the hand-holding sleeves 17 to walk slowly.

As shown in fig. 6, when the patient sits down by the aid of the assistive device, the cushion 23 extends, the cushion 23 rotates along the first support cross-brace 28, the cushion 23 is parallel to the ground, the fixing hook 25 is separated from the second support cross-brace 24, the two fixing buckles 27 are respectively connected with the two fixing cross-braces 19 in a clamping manner, and the patient sits on the cushion 23 for rest.

Preferably, the vertical rods of the two U-shaped brackets 18 are respectively provided with a telescopic device 21 for adapting to patients with different heights. Telescoping device 21 can be multiple structure, as long as realize above-mentioned function can, it is concrete, as shown in fig. 7, the telescoping device 21 that this embodiment provided includes telescopic link 31 and telescope tube 26, telescopic link 31 and telescope tube 26 are the column pipe, telescopic link 31 external diameter is less than telescope tube 26 internal diameter, universal wheel 20 is connected to telescopic link 31 one end, telescopic link 31 other end is arranged in inside telescope tube 26 one end, the telescope tube 26 other end and the horizontal pole of connection, telescopic link 31 top is equipped with first thru hole 30, telescope tube 26 bottom is equipped with a plurality of second thru holes 29, the bolt is arranged in the first thru hole 30 and the second thru hole 29 of alignment, it is fixed through the nut.

Preferably, the universal wheel 20 is arranged at the bottom of the vertical rod provided with the two U-shaped brackets 18 supporting the cross bracing ends, as shown in fig. 8, the universal wheel 20 comprises a bracket 35, a roller 34, a bracket base 32 and a brake device 33, the roller 34 is installed on the bracket 35, the bracket 35 is installed on the bracket base 32, the brake device 33 is arranged on the bracket base 32, and the bracket base 32 is connected with the bottom of the vertical rod.

Be equipped with telescoping device 21 on the vertical pole of this embodiment, make things convenient for the altitude mixture control of vertical pole to satisfy different height patients' different demands, vertical pole bottom is equipped with universal wheel 20, makes things convenient for the patient to remove the helping hand apparatus, avoids the helping hand apparatus to remove the in-process, wastes time and energy, when the patient makes the power direction incorrect, very easily causes complications such as dislocation, is unfavorable for the patient to be recovered. The universal wheels 20 are provided with the brake devices 33, so that the patients can sit on the universal wheels after the universal wheels are fixed at the required positions, the movement of the power-assisted instruments is avoided, and the safety factor is high.

The interaction between the monitoring devices and the controller can be accomplished using a variety of signals and techniques. These signals and techniques include: orthogonal signals, CDMA, TDMA, FDMA, OFDMA, ultra wideband signals, chirp signals, laser signals, and many others. The signals to and from the controller and the various monitoring devices may be modulated (using AM, FM, PSK, FSK, MSK, QAM, or any other possible modulation) or may be otherwise encoded or configured to contain timing, synchronization, control, data, multipath signal component identification, security codes, information to ensure proper operation, and redundancy. The signals to and from the controller and sensors may include Gold codes, PN codes, M-Sequence codes, Walsh-Hadamard codes, or any other codes. The controller may be a conventional chip, a single chip, or other devices, and has modules with corresponding functions to drive the devices to implement the above functions, which are not described herein again.

The working principle of the invention is as follows:

the patient is fixed required position with each monitoring devices, and is concrete, fixes four pressure sensor respectively to patient's both feet bottom plate, fixes patient's wrist department with intelligent bracelet, fixes dislocation prevention monitoring devices at patient's waist, fixes the controller casing to the helping hand apparatus on, opens the display screen and the speaker of controller casing, plays the rehabilitation and the nursing knowledge of the different operation modes of hip knee joint.

The patient folds cushion 23, and cushion 23 rotates along first support stull 28, and cushion 23 and perpendicular to ground make fixed hook 25 be connected with second support stull 24, and the patient arranges the U-shaped space that two U-shaped supports 18 and support stull formed in, and the both hands grip the cover respectively, slowly walk the way.

In the process of advancing of the patient, the pressure sensors measure stress signals of four points of the patient, the stress signals are simply processed and then transmitted to the controller through the wireless module, and the controller obtains the real-time stress of the four points of the patient, wherein the four points are arranged on the front and the back of the patient. The stress of the front point and the rear point on the same foot are added to obtain an approximate value of the weight born by the affected limb where the foot is located. The patient adjusts the body weight born by each affected limb according to the monitoring condition of the controller, and the monitoring precision is improved.

In the patient rehabilitation training process, the vital sign of patient is monitored to intelligent bracelet, avoids patient's health to meet accident. The dislocation prevention monitoring device monitors the rotation angle, the bending angle and the motion track of the joint of the patient, and avoids dislocation of the joint.

When a patient sits down by means of the power assisting instrument, the cushion 23 extends, the cushion 23 rotates along the first supporting cross support 28, the cushion 23 is parallel to the ground, the fixing hook 25 is separated from the second supporting cross support 24, the two fixing buckles 27 are respectively connected with the two fixing cross supports 19 in a clamping mode, and the patient sits on the cushion 23 to have a rest.

The invention has the advantages and positive effects that:

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A hip-knee joint postoperative rehabilitation system which characterized in that: comprises a controller and a plurality of subsystems, wherein the subsystems comprise a force measuring subsystem, a vital sign monitoring subsystem, a rehabilitation knowledge propaganda and education subsystem, a joint dislocation prevention monitoring subsystem and a multifunctional power assisting subsystem, the subsystems are respectively connected with the controller,

2. The hip-knee joint postoperative rehabilitation system according to claim 1, characterized in that: the force measuring device is a pressure sensor, the pressure sensor comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, the first pressure sensor is arranged at the left sole of the foot of the patient, the second pressure sensor is arranged at the left heel of the foot of the patient, the third pressure sensor is arranged at the right sole of the foot of the patient, the fourth pressure sensor is arranged at the right heel of the foot of the patient, the four groups of pressure sensors are wirelessly connected with the controller, the controller is provided with a first wireless module for receiving monitoring information of the four groups of pressure sensors, the controller is provided with a calculation module and a processing module, the calculation module calculates the gravity threshold value borne by each affected limb of the patient, the calculation module sends the threshold value to the processing module, and the processing module receives the acquisition signal of the pressure sensor in real time and gives an alarm when the gravity borne by the affected limb exceeds the threshold value.

3. The hip-knee joint postoperative rehabilitation system according to claim 2, characterized in that: the pressure sensor is of a film type and sequentially comprises an upper insulating layer, an upper conducting layer, an inner insulating layer, a lower conducting layer and a lower insulating layer from top to bottom, a plurality of through holes are formed in the inner insulating layer, and the pressure sensor is of a circular sheet shape.

4. The hip-knee joint postoperative rehabilitation system according to any one of claims 1 to 3, characterized in that: the vital sign monitoring device is an intelligent bracelet, the intelligent bracelet comprises a shell, a chip is arranged in the shell and is connected with various sensors, the various sensors comprise an optical heart rate sensor, an oxygen saturation level SPO2 sensor and an acceleration sensor, and the optical heart rate sensor is used for monitoring the heart rate of a patient; the blood oxygen saturation level SPO2 sensor is used to monitor the patient's blood oxygen saturation level; the acceleration sensor is used for judging the motion condition of the patient; the monitoring blood pressure adopts a photoelectric volume pulse wave signal, a precise waveform is obtained at a high sampling frequency, the pulse waveform detail is analyzed, and the current blood pressure value is accurately calculated through correction.

5. The hip-knee joint postoperative rehabilitation system of claim 4, wherein: the intelligent bracelet comprises a wrist strap, the wrist strap comprises a first wrist strap and a second wrist strap, one end of the first wrist strap is connected with one end of the shell, the other end of the first wrist strap is provided with a first buckle, one end of the second wrist strap is connected with the other end of the shell, the other end of the second wrist strap is provided with a second buckle, the first buckle is matched with the second buckle to form a closed ring, and the closed ring is worn on the wrist of a patient.

6. The hip-knee joint postoperative rehabilitation system of claim 4, wherein: and a second wireless module is arranged on the chip and is matched with the first wireless module, so that the wireless transmission of the information on the chip and the controller is realized.

7. The hip-knee joint postoperative rehabilitation system according to any one of claims 1 to 3 or 5 or 6, characterized in that: the controller includes storage module, last video, pronunciation, characters and the picture that is equipped with wide knee joint postoperative rehabilitation knowledge of storage module, the video the pronunciation the characters reach the picture passes through display device reaches speaker shows, display device is the display screen, speaker is the speaker, the display screen with the speaker with the controller is connected.

8. The hip-knee joint postoperative rehabilitation system according to any one of claims 1 to 3 or 5 or 6, characterized in that: the anti-dislocation monitoring device is an infrared monitoring device which releases linear infrared beams, and the rotation angle, the bending angle and the motion trail of the joint are monitored through the infrared beams and the bending and stretching conditions of the joint of the patient.

9. The hip-knee joint postoperative rehabilitation system according to any one of claims 1 to 3 or 5 or 6, characterized in that: the power assisting apparatus comprises two U-shaped supports, two U-shaped supports are placed in parallel from left to right, two the fixed cover of U-shaped support horizontal cross rod department is equipped with the handle cover, two be equipped with the support stull on a pair of parallel vertical rods of U-shaped supports, the support stull includes first support stull and second support stull, first support stull is arranged in lower part in the U-shaped support, the second support stull is arranged in upper portion in the U-shaped support, first support stull passes through folding device and connects cushion one end, the cushion other end is equipped with connecting device, works as after the cushion is folded, connecting device with the second supports the stull and connects, be equipped with fixed stull between two vertical rods of U-shaped supports, work as after the cushion extends, the cushion is arranged in fixed stull top.

10. The hip-knee joint postoperative rehabilitation system of claim 9, wherein: the folding device is a rotary sleeve, the rotary sleeve is arranged on the lower surface of the cushion, the first cross brace is arranged in the rotary sleeve, the lower surface of the cushion and the opposite end of the rotary sleeve are provided with two fixed buckles, the two fixed buckles are respectively connected with the two fixed cross braces of the U-shaped support in a matched mode, a fixed hook is arranged between the two fixed buckles, and the fixed hook is connected with the second support cross brace in a matched mode.