Limb Coordination Assistance Device for Predicting Stroke Recurrence

Abstract

The present invention relates to the field of rehabilitation technology, and particularly relates to a limb coordination assistance device for predicting stroke recurrence, which includes a fixing member. A testing component and a communication module are provided on the fixing member. The fixing member is used to fix the testing component to the patient's foot and leg. The testing component includes symmetrically arranged chambers, and the chambers are used to change their volumes according to the pressure exerted by the patient's foot on the fixing member. Fixed airbags are connected to the chambers. The device further includes a control system, which is used to judge the patient's stability according to the pressure exerted by the patient's ankle on the fixed airbag. When the patient's stability is poor, the control system controls the communication module to work and alarms the user. When the patient's stability is excellent, the control system does not control the communication module to work. The present invention is used to reduce the participation of medical staff in the process of predicting stroke recurrence in patients and reduce waste of manpower.

Description

Technical Field

[0001] The present invention relates to the field of rehabilitation technologies, and particularly to a limb coordination assistance device for predicting stroke recurrence. Background Art

[0002] Stroke, also known as apoplexy or cerebrovascular accident, is an acute cerebrovascular disease mainly caused by sudden rupture of blood vessels in the brain or blood vessel obstruction leading to blood supply disorders, thereby causing brain tissue damage and dysfunction. Stroke is characterized by high incidence, high disability rate, high mortality rate and high recurrence rate, and is one of the major diseases seriously endangering human health.

[0003] At the same time, the factors causing stroke do not disappear with the first attack of stroke. For example, the inducing factors of stroke such as hypertension, hyperlipidemia, diabetes, coronary heart disease, arterial embolism, and atherosclerosis are mostly difficult to completely remove. If not well controlled, it is very easy to cause a recurrence of stroke. After the first treatment of the patient, it is still necessary for the patient and his family members to monitor the patient's condition so that when the patient shows signs of recurrence, the patient can be sent to the hospital in time to avoid the deterioration of the patient's condition and the occurrence of more serious complications.

[0004] Since conditions such as headache, dizziness or vertigo, blurred vision, limb numbness and abnormal movement often occur before the recurrence of stroke in patients, these will seriously affect the stability of the patient during physical activities. Therefore, in the prior art, medical staff often evaluate the patient's condition during the rehabilitation training process to judge the patient's stability, and then judge whether the patient may have a recurrence of stroke. However, this scheme often requires the accompaniment of medical staff, which is likely to cause waste of manpower and is greatly affected by the subjectivity of medical staff. Summary of the Invention

[0005] To solve the above problems, the present invention provides a limb coordination assistance device for predicting stroke recurrence, which is used to reduce the participation of medical staff in the process of predicting stroke recurrence in patients and reduce waste of manpower.

[0006] To achieve the above object, the technical solution of the present invention is as follows: A limb coordination assistance device for predicting stroke recurrence includes a fixing member, on which a testing component and a communication module are provided. The fixing member is used to fix the testing component to the patient's foot and leg. The testing component includes symmetrically arranged chambers, and the chambers are used to change the volume according to the pressure exerted by the patient's foot on the fixing member. The chambers are all connected to fixed air bags.

[0007] It further includes a control system, which is used to judge the patient's stability according to the pressure exerted by the patient's ankle on the fixed air bag. When the patient's stability is poor, the control system controls the communication module to work and alarms the user. When the patient's stability is excellent, the control system does not control the communication module to work.

[0008] Furthermore, the control system includes a controller and flexible pressure sensors symmetrically arranged along the central axis of the fixing member;

[0009] The flexible pressure sensors are all used to collect the pressure information exerted on the side walls of the fixing airbag on both sides of the patient's ankle joint;

[0010] The controller is used to judge the stability of the patient according to the pressure information. When the stability of the patient is poor, it controls the communication module to work and alarms the user. When the stability of the patient is excellent, it does not control the communication module to work.

[0011] The technical principle and beneficial effects of the above solution:

[0012] 1. In this solution, through the design of the test component, before the recurrence of stroke in the patient, it is easy to have abnormal stability, and the abnormal stability will lead to abnormal gait of the patient, so that the pressures exerted on the ground by both sides of the patient's feet are different. Based on this principle, the pressure information reflects the magnitudes of the pressures exerted on the ground by both sides of the patient's feet, thereby judging the stability of the patient. When the patient has stability problems, the patient is likely to have a recurrence of stroke. At this time, it warns the medical staff and prompts the medical staff to check the patient's condition. Compared with the existing technology, this solution is convenient to wear, which is beneficial to improving the acceptance of the patient. At the same time, this device does not require medical staff to accompany and monitor all the time, which is beneficial to reducing the workload of medical staff and lowering the participation of medical staff in the prediction process of stroke recurrence in patients.

[0013] 2. In this solution, symmetrically arranged chambers and fixing airbags are designed to reflect the pressure exerted by the patient on the ground onto the fixing airbag, that is, by the magnitude of the extrusion force of the fixing airbag on the patient's ankle joint after inflation, to judge the magnitudes of the pressures exerted on the ground by both sides of the patient's feet. Compared with the solution of directly adding a pressure sensing module under the patient's feet, the setting position of the sensors in this solution ensures that the sensors will not be directly impacted during the patient's walking process, which is beneficial to extending the service life of the sensors.

[0014] 3. In the design of the fixing airbag in this solution, after the gas in the chamber enters the fixing airbag, the fixing airbag expands, thereby providing a certain protection for the patient's ankle joint and reducing the probability of ankle joint injury caused by abnormal gait. At the same time, during the inflation process of the fixing airbag, it can give the patient a thrust to help the patient's ankle joint return to the neutral position, further reducing the probability of the patient spraining their ankle.

[0015] Furthermore, it also includes an air pump. The fixing airbags are all connected to the air pump, and electromagnetic valves are provided at the connection points between the fixing airbags and the air pump. The controller is used to control the air pump and the electromagnetic valves to work according to the pressure information.

[0016] Beneficial effects: When the patient shows abnormal gait, the air pump is used to intensify the inflation of the fixed airbag on the side with a greater pressure information increment, thereby further giving the patient's ankle joint a reverse thrust, further reducing the probability of the patient spraining their ankle. At the same time, through the air pump.

[0017] Furthermore, it also includes a gait acquisition component. The gait acquisition component includes a camera, which is used to acquire the body image information of the patient. The controller is also used to select the body image information when the patient's stability is excellent to construct a gait model, and predict the patient's gait according to the gait model. At the same time, compare the predicted gait with the gait in the real-time body image information. When the predicted gait is different from the real-time gait, the communication module is controlled to alarm the user.

[0018] Beneficial effects: The camera is used to acquire the dynamic gait of the patient in the normal state, thereby constructing the patient's gait model, and using the gait model to predict the patient's normal gait in real time. When the actual gait of the patient is different from the predicted gait, the patient may show signs of a recurrence of stroke. At this time, an alarm is sent to the medical staff. The design of the gait acquisition component uses the change of the patient's gait to judge the patient's state, and can still maintain a certain function for some stroke recurrence patients who do not show obvious varus or valgus states, effectively broadening the applicable range of this device and reducing the probability of misjudgment and missed judgment.

[0019] Furthermore, the gait acquisition component also includes a moving component and an auxiliary acquisition component. The moving component is used to drive the patient to move backward. The moving component is provided with an acquisition layer made of plastic material. The camera is also used to acquire the image of the acquisition layer. The auxiliary acquisition component includes a bracket and a storage battery. The bracket and the storage battery are both fixedly connected to the moving component. A number of lamp groups are fixedly connected to the bracket, and each group of lamps is arranged in a cross pattern. A number of baffles are also hinged to the bracket. The baffles correspond to the lamp groups. The bottom wall of the baffle is slidably matched with the top wall of the acquisition layer, and a first contact is fixedly connected to each baffle. A second contact corresponding to the first contact is fixedly connected to the bracket. The first contacts are all signal-connected to the corresponding lamp groups, and the second contacts are all signal-connected to the storage battery. The controller is also used to obtain the footprint information of the patient according to the deformation layer image, obtain the static gait information of the patient according to the patient's footprint information, and adjust the gait model according to the static gait information.

[0020] Beneficial effects: By acquiring the patient's footprints, the static gait of the patient is acquired, reducing the situation that the information acquisition is incomplete due to the number and angle of the cameras during the image acquisition process, which affects the accuracy of gait prediction. At the same time, the auxiliary acquisition component is used to reduce the shadow of the footprint position in the image, thereby improving the accuracy of identifying the patient's footprint information.

[0021] Further, it further includes an alarm. The control system further includes symmetrically arranged air pressure sensors for collecting the air pressure information of the corresponding fixed airbags. The controller controls the alarm and the communication module to work according to the air pressure information.

[0022] Beneficial effects: By using the air pressure change inside the fixed airbag to judge whether the patient has fallen, and after the patient has fallen, alarm the user and the surrounding people, reducing the probability of serious physical injuries caused by the patient not receiving treatment after falling and improving the safety of the device.

[0023] Further, the fixed airbags are all arc-shaped.

[0024] Beneficial effects: The arc-shaped fixed airbag can better fit the position of the patient's ankle joint. Compared with airbags of spherical or other shapes, the pressure distribution of this solution on the patient's ankle joint is more uniform, which is beneficial to reducing the discomfort of the patient during use and further improving the stability of the patient's ankle joint.

[0025] Further, it further includes an audio playback module for playing voice to the patient. The controller is also used to receive the demand information input by the user, and control the audio playback component to play the corresponding guiding task voice to the patient according to the demand information, and judge whether the patient has completed the guiding task according to the pressure information. When the patient has completed the guiding task, the controller controls the audio playback component to work again to play encouraging voice to the user. When the patient has not completed the guiding task, the controller controls the communication module to work.

[0026] Beneficial effects: By issuing guiding tasks to the patient and judging the completion of the patient's guiding tasks according to the pressure information, it helps medical staff to judge the stability of the patient and reduces the workload of medical staff.

[0027] Further, the controller is also used to calculate the time information from when the audio playback module finishes playing the guiding task voice to when the patient starts to perform the guiding task. When the time information is greater than the preset time, the controller controls the communication module to work. When the time information is less than or equal to the preset time, the controller does not control the communication module to work.

[0028] Beneficial effects: By calculating the time from when the guiding task voice is played to when the patient responds, it judges the reaction speed of the patient, and when the patient shows slow reaction, it prompts the medical staff to go and check to avoid further deterioration of the patient's condition.

[0029] Further, the control system further includes an ultrasonic sensor for collecting the object information around the fixture. The controller controls the alarm and the communication module to work according to the object information.

[0030] Beneficial effects: Through the design of the ultrasonic sensor, the alarm and communication module continuously alarm before no one approaches the patient, further reducing the probability of serious physical injuries caused by the patient not receiving treatment after falling.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Is an axonometric view of an embodiment of the limb coordination assistance device for predicting stroke recurrence of the present invention;

[0033] Figure 2 Is a top view of an embodiment of the limb coordination assistance device for predicting stroke recurrence of the present invention;

[0034] Figure 3 Is Figure 2 The sectional view taken along line A-A in

[0035] Figure 4 Is Figure 2 The sectional view taken along line B-B in

[0036] Figure 5 Is a circuit schematic diagram of an embodiment of the limb coordination assistance device for predicting stroke recurrence of the present invention;

[0037] Figure 6 Is a top view of the gait acquisition component in an embodiment of the limb coordination assistance device for predicting stroke recurrence of the present invention;

[0038] Figure 7 Is Figure 6 The sectional view taken along line C-C in

[0039] Reference numerals in the accompanying drawings of the specification include: 1, foot sleeve; 2, fixed airbag; 3, pressing airbag; 31, diaphragm; 4, moving component; 5, auxiliary acquisition component; 51, bracket; 52, lamp; 53, baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a signal connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] The following is a further detailed description through specific embodiments:

[0044] Embodiment 1:

[0045] As shown in the appended Figure 1 - appended Figure 5 figure: A limb coordination assistance device for predicting the recurrence of stroke, including a fixing member. The fixing member includes a foot sleeve 1, and the foot sleeve 1 is made of elastic material. A testing component and a communication module (not shown in the figure) are provided on the fixing member. The communication module is adhesively fixed to the outer side wall of the foot sleeve 1. The fixing member is used to fix the testing component to the patient's foot and leg. The testing component includes a pressing airbag 3. A diaphragm 31 is adhesively fixed inside the pressing airbag 3. The diaphragm 31 divides the pressing airbag 3 into two chambers symmetrically arranged along the central axis of the foot sleeve 1. The chambers are both communicated with a fixing airbag 2. The fixing airbags 2 are all arc-shaped. The pressing airbag 3 is adhesively fixed to the central position of the inner bottom wall of the foot sleeve 1. The fixing airbags 2 are adhesively fixed to the inner side wall of the foot sleeve 1, and the two fixing airbags 2 are respectively arranged at the corresponding positions of the inner and outer ankles of the human body. It further includes a control system. The control system includes a controller and symmetrically arranged flexible pressure sensors. The flexible pressure sensors are adhesively fixed to the side of the fixing airbag 2 close to the patient's skin, and both the flexible pressure sensors and the communication module are signal-connected to the controller. The flexible pressure sensors are used to collect the pressure information applied to the side walls of the fixing airbags 2 on both sides of the patient's ankle joint. The controller is used to judge the stability of the patient according to the pressure information. When the stability of the patient is poor, it controls the communication module to work and alarms the user. When the stability of the patient is excellent, it does not control the communication module to work.

[0046] The specific implementation process is as follows: When a patient has a first stroke and recovers, this device is used. During the use of this device, help the patient wear the foot sleeve 1, and make the two fixed airbags 2 contact the positions of the patient's inner ankle and outer ankle respectively. Subsequently, the patient can wear daily shoes and socks. During the use process, the patient walks normally while wearing this device. The patient's sole presses the pressure airbag 3, causing the pressure airbag 3 to deform. The gas inside the pressure airbag 3 enters the corresponding fixed airbag 2, causing the fixed airbag 2 to expand and squeeze the patient's ankle joint position. During this process, the flexible pressure sensor continuously collects the pressure information exerted on the outer wall of the fixed airbag 2 at the patient's ankle joint position.

[0047] In the normal state of the patient, the patient's stability is normal. At this time, the patient's sole lands steadily on the ground, and the pressure exerted on the pressure airbag 3 is evenly distributed, so that the volume of gas entering the two fixed airbags 2 on both sides from the pressure airbag 3 is also similar, the expansion degree of the fixed airbags 2 is similar, and the increment of the pressure exerted on both sides of the patient's ankle joint is also similar, that is, the variable of the pressure information is similar.

[0048] When the patient is about to show signs of a stroke recurrence, their stability becomes abnormal. At the same time, due to symptoms such as dizziness, headache, and limb numbness that may occur before a stroke recurrence, the patient's stability will be further reduced. During walking, the patient has difficulty maintaining a normal state, the body sways or abnormal gait patterns such as foot inversion occur. During this process, the patient's sole cannot land steadily on the ground, and the pressure exerted on the ground by both sides of the sole is different, and the pressure distribution exerted on the pressure airbag 3 by the sole is also different, so that the expansion degrees of the two fixed airbags 2 on both sides are different, and the variable of the pressure information also shows a difference accordingly.

[0049] When the patient has foot inversion, on the pressure airbag 3 under the right foot, the right chamber is squeezed more than the left chamber, so that the expansion length of the fixed airbag 2 near the patient's outer ankle is greater than that of the fixed airbag 2 near the patient's inner ankle. At this time, the pressure information exerted on the corresponding fixed airbag 2 by the patient's outer ankle is greater than the pressure information exerted on the corresponding fixed airbag 2 by the patient's inner ankle.

[0050] When the patient lifts the foot, the pressure exerted by the foot on the pressure airbag 3 is released, and the fixed airbag 2 resets under the action of its own elastic force, causing the gas to return to the pressure airbag 3 again, completing the reset of the pressure airbag 3.

[0051] Therefore, during walking, the pressure information is continuously monitored. When the difference between the increments of the pressure information on both sides of the patient is less than or equal to the set value, at this time, the patient's soles can land steadily on the ground, and the patient's stability is normal, so the patient's stability is excellent at this time; when the difference between the increments of the pressure information on both sides of the patient is greater than the set value, at this time, there is a difference in the pressure exerted on the ground by both sides of the patient's soles, and the patient's stability is abnormal, which may be a precursor to a recurrence of stroke. Then the patient's stability is poor. The controller controls the communication module to work and alerts the user, prompting the user to check the patient's physical condition in time to avoid further deterioration of the patient's condition.

[0052] At the same time, the inflatable fixed airbag 2 can provide a certain degree of protection to the patient's ankle joint, reducing the probability of the patient spraining their ankle during walking. At the same time, when the patient has an abnormal gait and the ankle joint flips in a certain direction when the sole touches the ground, the inflation degree of the fixed airbag 2 in the flipping direction of the ankle joint is greater than that of the other fixed airbag 2. The more vigorously inflated fixed airbag 2 can give the patient's ankle joint a force in the opposite direction, pushing the patient's ankle joint back into place and further reducing the direction of the patient's ankle sprain. For example, when the patient's right foot has varus, the fixed airbag 2 at the outer ankle position inflates more vigorously, and the fixed airbag 2 gives the outer ankle position of the patient an inward force to help the patient rotate the ankle joint to the neutral position.

[0053] Embodiment 2:

[0054] The difference from Embodiment 1 is that it further includes an air pump (not shown in the figure). In this embodiment, the air pump is installed on the top wall of the foot sleeve 1 and is adhesively fixed to the foot sleeve 1. During use, by adjusting the position of the patient's shoes and socks, the air pump is exposed outside the shoes and socks, thereby reducing the situation where the shoes and socks hinder the operation of the air pump and the air pump causes discomfort to the patient. The fixed airbags 2 are all connected to the air pump, and electromagnetic valves are provided at the connection points between the fixed airbags 2 and the air pump. The air pump and the electromagnetic valves are both connected to the controller in a signal manner, and the controller is used to control the operation of the air pump and the electromagnetic valves according to the pressure information.

[0055] The specific implementation process is as follows: Before using this device, the patient stands with both legs. The controller controls the air pump and solenoid valve to work, pumping gas into the fixing airbag 2 or extracting gas from the fixing airbag 2 until the fixing airbag 2 just adheres to the position of the patient's ankle joint without causing excessive squeezing on the patient's ankle joint, that is, making the pressure information maintain within the set numerical range, so that this device can adapt to patients with different calf dimensions. During the use process, when the patient's stability is weak and the patient shows an abnormal gait, at this time, the force exerted by the patient's sole on both sides of the pressing airbag 3 is different, resulting in different degrees of inflation of the two fixing airbags 2, that is, different increments of the pressure information on both sides. At this time, the controller controls the air pump and solenoid valve to work, pumping gas into the fixing airbag 2 on the side with a larger increment of pressure information, intensifying the inflation of this fixing airbag 2, and further giving a thrust to the patient's ankle joint, pushing the patient's ankle joint to move in the opposite direction, so as to help the patient's ankle joint return to the neutral position, reducing the probability of the patient spraining their ankle. At the same time, when the patient lifts their leg, that is, the gas in the fixing airbag 2 returns to the chamber and the pressure information starts to drop. At this time, the controller controls the air pump and solenoid valve to work, extracting the gas previously pumped into the fixing airbag 2, so as to reduce the influence of the excess gas on the subsequent stability judgment of the patient.

[0056] Embodiment 3:

[0057] The difference from Embodiment 2 is that it further includes a gait acquisition component. The gait acquisition component includes a camera (not shown in the figure). The camera is used to acquire the body image information of the patient. The camera is signal-connected to the controller. The controller is also used to select the body image information when the patient's stability is excellent. In this embodiment, the center of gravity of the patient is estimated based on the patient's body image information, a gait model is constructed according to the change of the center of gravity during the patient's movement, and the patient's gait is predicted according to the gait model. At the same time, the gait in the predicted gait is compared with the gait in the real-time body image information. When the center of gravity of the predicted gait is different from the center of gravity of the real-time gait, the communication module is controlled to alarm the user.

[0058] The specific implementation process is as follows: When using this device, adjust the position of the camera so that the whole body image of the patient can be fully exposed in the body image information collected by the camera. The camera continuously collects the body image information of the patient, selects the body image when the patient's stability is excellent, constructs a gait model based on the change of the patient's center of gravity in the body image, and predicts the patient's next movement in real time following the patient's movement to obtain the center of gravity of the predicted gait. At the same time, the camera continuously collects the real-time body image information of the patient and obtains the real-time center of gravity of the patient. When the real-time center of gravity is inconsistent with the predicted center of gravity, there is a difference in the patient's stability compared to the normal state, which may be abnormal gait or a precursor to falling. At this time, the controller controls the communication module to work and alarms the user to prompt the user to check the patient's status in time to avoid the deterioration of the patient's condition. The design of the gait acquisition component enables the device to still maintain a certain function when facing some patients who show precursors of falling but do not show obvious varus or valgus foot states, thus effectively broadening the applicable range of this device and reducing the probability of misjudgment and missed judgment.

[0059] Embodiment 4:

[0060] Combined with the attached Figure 5 - attached Figure 7 As shown, the difference from Embodiment 3 is that the gait acquisition component further includes a moving component 4 and an auxiliary acquisition component 5. In this embodiment, the moving component 4 is a flat treadmill. The moving component 4 is used to drive the patient to move backward. There is an acquisition layer made of plastic material on the moving component 4. The camera is also used to collect the image of the acquisition layer. The auxiliary acquisition component 5 includes a bracket 51 and a storage battery. Both the bracket 51 and the storage battery are fixedly connected to the flat treadmill by bolts. A number of groups of lights 52 are fixedly connected to the bracket 51 by bolts, and each group of lights 52 is arranged crosswise. A number of flappers 53 are also hinged on the bracket 51. The bottom walls of the flappers 53 are all arc-shaped. The flappers 53 correspond to the groups of lights 52. The bottom walls of the flappers 53 are slidably matched with the top wall of the acquisition layer, and first contacts are welded and fixed on the flappers 53. Second contacts corresponding to the first contacts are welded and fixed on the bracket 51. The second contacts are arc-shaped. The first contacts are all signal-connected to the corresponding groups of lights 52, and the second contacts are all signal-connected to the storage battery. The controller is also used to obtain the footprint information of the patient according to the image of the acquisition layer, obtain the static gait information of the patient according to the footprint information of the patient, and adjust the gait model according to the static gait information.

[0061] The specific implementation process is as follows: During the use of this device, the patient walks slowly on the moving component 4. During this process, the patient's feet land on the acquisition layer, causing the acquisition layer to undergo plastic deformation, thereby forming footprints. As the moving component 4 works, the footprints on the acquisition layer move backward relative to the patient. Due to the plastic deformation of the acquisition layer, the area around the footprints bulges, being higher than the undeformed position. When the footprint reaches the position of the baffle 53, the bulge pushes the baffle 53 to rotate, thereby making the first contact and the second contact touch, thus connecting the circuit between the corresponding lamp 52 group and the storage battery. The lamp 52 group works, thereby illuminating the inside of the footprint. As the footprint moves away, the supporting effect of the bulge on the baffle 53 is released, and then the baffle 53 resets under the action of the hinge force and gravity. During this process, the camera continuously acquires images of the acquisition layer. The controller obtains the patient's footprint information from the images of the acquisition layer, that is, the shape and depth of the footprint, etc., and obtains the patient's static gait information based on the patient's footprint information. After the patient's first stroke recurrence, the patient's static gait information is collected multiple times, and the static gait information when the patient's stability is excellent is obtained. The gait model is adjusted in combination with the static gait information when the patient's stability is excellent. This solution makes up for the defect that when the camera collects body image information, due to the influence of the number and angle of the camera, the information collection is incomplete, thus affecting the accuracy of the gait model. At the same time, in this solution, the auxiliary acquisition component 5 irradiates the patient's footprint through the lamp 52 group, reducing the shadow of the footprint, thereby improving the accuracy of subsequent identification of the patient's footprint information. At the same time, by using the setting of the baffle 53, etc., the lamp 52 group only works when the footprint passes, greatly shortening the working duration of the lamp 52 group, reducing the energy consumption of the device, thereby shortening the usage cost of the device. The work of the lamp 52 group can also play a certain role in positioning the footprint, helping to reduce the calculation amount required by the controller in the subsequent footprint information identification process.

[0062] Embodiment 5:

[0063] As shown in the attached Figure 1 figure, the difference from Embodiment 4 is that it further includes an alarm (not shown in the figure). In this embodiment, the alarm is a buzzer alarm. The control system further includes symmetrically arranged air pressure sensors, which are used to collect the air pressure information of the corresponding fixed airbag 2. The air pressure sensors are adhesively fixed to the inner side wall of the fixed airbag 2. Both the air pressure sensors and the alarm are signal-connected to the controller, and the controller controls the alarm and the communication module to work according to the air pressure information.

[0064] The specific implementation process is as follows: During the use of this device, the air pressure sensor continuously collects the air pressure information in the corresponding fixed airbag 2. However, when the patient has weak stability and sprains their ankle and falls sideways, during the process of the patient's side coming into contact with the ground, the fixed airbag 2 hits the ground, causing the internal air pressure of the fixed airbag 2 to rise suddenly. Thus, when the air pressure information rises suddenly, the controller is controlled to continuously alarm, and the communication module is controlled to alarm the user, prompting the people around the patient and the user to go for treatment, reducing the probability of serious physical injuries caused by the patient not receiving treatment after falling, and improving the safety of the device.

[0065] Embodiment 6:

[0066] As shown in the attached Figure 1 figure, the difference from Embodiment 5 is that it further includes an audio playback module. The audio playback module is used to play voice to the patient. The audio playback module is signal-connected to the controller. The controller is also used to receive the demand information input by the user, and control the audio playback component to play the corresponding guiding task voice to the patient according to the demand information, and judge whether the patient has completed the guiding task according to the pressure information. When the patient completes the guiding task, the controller controls the audio playback component to work again to play an encouraging voice to the user. When the patient does not complete the guiding task, the controller does not control the audio playback component to work.

[0067] The specific implementation process is as follows: When using this device, medical staff formulate certain test and evaluation tasks for the patient according to the patient's condition, and input these tasks as demand information into the controller. The controller controls the audio playback module to work according to the demand information input by the medical staff, and plays guiding task information to the patient. For example, when the medical staff needs the patient to perform a single-leg support test, at this time, the guiding task voice played by the controller controlling the audio playback module is "Please stand on one foot upright, keep the non-test foot off the ground, bend the knee, do not touch the opposite lower limb, and hold for thirty seconds." The patient converts from standing on two legs to standing on one leg according to the content of the guiding task. At this time, the force exerted by the patient's test foot on the pressing airbag 3 increases, and the gas in the chamber is more completely squeezed into the corresponding fixed airbag 2, and certain increases occur in the pressure information on both sides. Since the patient needs to maintain body balance, there will be left and right ankle rotations. At this time, there will be certain fluctuations in the pressure on both sides of the pressing airbag 3 under the patient's sole, resulting in certain fluctuations in the pressure information on both sides. For normal patients, this fluctuation remains within the preset range within thirty seconds. For patients with abnormal stability, it is difficult to maintain this action within thirty seconds, and the body shakes violently. At this time, the fluctuation of the pressure information on both sides is difficult to maintain within the preset range, and then returns to the state of standing on both feet, that is, the pressure information decreases. Thus, for patients whose pressure information fluctuation remains within the preset range, encouraging voices such as "You are great for completing this goal" are played to motivate the patient and enhance the patient's interest in using this device. For patients whose pressure information fluctuation is difficult to maintain within the preset range and shows a decrease, the communication module is controlled to work to give an early warning to the medical staff, indicating that the stability of this patient is abnormal and a recurrence of stroke may occur.

[0068] Embodiment 7:

[0069] As shown in the Figure 1 appendix, the difference from Embodiment 6 is that the controller is further used to calculate the time information from when the guiding task voice is played by the audio playback module to when the patient starts to perform the guiding task. When the time information is greater than the preset time, the controller controls the communication module to work. When the time information is less than or equal to the preset time, the controller does not control the communication module to work.

[0070] The specific implementation process is as follows: When using this device, when the controller controls the audio playback module to play the guiding task voice to the patient, starts timing after the guiding task voice is played, and ends timing when the patient starts the guiding task. For example, if the guiding task is a single-leg support test, calculate the time when the pressure information increases after the guiding voice is played, that is, the time from when the patient hears the guiding task voice to making a reaction. When the patient's reaction time is greater than the preset value, the patient may be slow to react. Before a stroke recurrence, due to brain lesions, the patient is prone to cognitive abnormalities, which directly or indirectly lead to slow reaction. Therefore, when the patient is slow to react, it is very likely that a stroke recurrence will occur. At this time, the controller controls the communication module to work and alarms the medical staff, prompting the medical staff to go and check, further avoiding the deterioration of the patient's condition.

[0071] Embodiment 8:

[0072] As shown in the Figure 1 attachment, the difference from Embodiment 7 is that the control system further includes an ultrasonic sensor (not shown in the figure). The ultrasonic sensor is signal-connected to the controller, and the ultrasonic sensor is adhesively fixed to the outer side wall of the foot sleeve 1. The ultrasonic sensor is used to collect the object information around the fixing member, and the controller controls the alarm and the communication module to work according to the object information.

[0073] The specific implementation process is as follows: Before using this device, expose the position of the ultrasonic sensor from the shoes and socks, and then start training such as walking. When the patient falls, that is, during the sudden change of air pressure information, the controller controls the ultrasonic sensor, the alarm and the communication module to start working, and continuously collects the distance between the objects around the patient and the patient, that is, the object information. When someone approaches the patient, the object information appears and gradually decreases. At this time, the controller controls the alarm and the communication module to stop working, so as to ensure that the surrounding people and medical staff are continuously alarmed between the patient's fall and someone going to treat them, reducing the probability of serious physical injury caused by the patient not being treated after falling.

[0074] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A limb coordination assisting device for predicting stroke recurrence, characterized in that: The invention comprises a fixing part, on which a test component and a communication module are provided, the fixing part is used to fix the test component to the foot and leg of a patient, the test component comprises a pressing airbag (3), a diaphragm (31) is bonded and fixed inside the pressing airbag (3), the diaphragm (31) divides the pressing airbag (3) into two chambers symmetrically arranged along the central axis of the foot cover (1), the chambers are both connected to a fixed airbag (2), the pressing airbag (3) is bonded and fixed to the axial position of the inner bottom wall of the foot cover (1), the fixed airbag (2) is bonded and fixed to the inner side wall of the foot cover (1), and the two fixed airbags (2) are respectively arranged in the chambers symmetrically arranged at corresponding positions of the inner ankle and the outer ankle of the human body, and the chamber is used to change the volume according to the pressure applied to the fixing part by the patient's foot; The device also includes a gait collection component, the gait collection component includes a camera, the camera is used to collect body image information of the patient, the gait collection component also includes a moving component (4) and an auxiliary collection component (5), the moving component (4) is used to drive the patient to move backward, the moving component (4) is provided with a collection layer made of plastic material, the camera is also used to collect images of the collection layer, the auxiliary collection component (5) includes a bracket (51) and a battery, the bracket (51) and the battery are both fixedly connected to the moving component (4), and the bracket (51) is fixedly connected to a plurality of A set of dry lamps (52), and each set of lamps (52) are cross-arranged, and the lamps (52) are used to reduce the influence of footprint shadows on the image of the collection layer, and a plurality of baffles (53) are hinged on the bracket (51), the baffles (53) correspond to the lamp (52) groups, the bottom wall of the baffles (53) and the top wall of the collection layer are slidably matched, and the baffles (53) are fixedly connected with a first contact, and the bracket (51) is fixedly connected with a second contact corresponding to the first contact, the first contact is connected with the corresponding lamp (52) group signal, and the second contact is connected with the battery signal; The device also includes a control system, which includes a controller. The controller is used to determine the stability of the patient based on the pressure applied by the patient's ankle joint on the fixed airbag (2). The controller is also used to select body image information when the patient's stability is excellent to construct a gait model to estimate the patient's center of gravity, and to construct a gait model based on the change of the patient's center of gravity during movement. The gait of the patient is predicted based on the gait model, and the predicted gait is compared with the gait in the real-time body image information. When the center of gravity of the predicted gait is different from the center of gravity of the real-time gait, the control communication module alarms the user. The controller is also used to obtain the patient's footprint information based on the deformation layer image, obtain the patient's static gait information based on the patient's footprint information, and adjust the gait model based on the static gait information.

2. The limb coordination assisting device for predicting stroke recurrence according to claim 1, characterized in that: The control system also includes flexible pressure sensors symmetrically arranged along the central axis of the fixing member; The flexible pressure sensors are used to collect pressure information applied to the side walls of the fixed airbag (2) on both sides of the patient's ankle joint; The controller is also used to determine the stability of the patient based on the pressure information. When the patient's stability is poor, the communication module is controlled to work to alert the user. When the patient's stability is excellent, the communication module is not controlled to work.

3. The limb coordination auxiliary device for predicting stroke recurrence according to claim 2, characterized in that: It also includes an air pump, and the fixed airbags (2) are all connected to the air pump, and a solenoid valve is provided at the connection point between the fixed airbags (2) and the air pump, and the controller is used to control the operation of the air pump and the solenoid valve according to pressure information.

4. The limb coordination assisting device for predicting stroke recurrence according to claim 3, characterized in that: It also includes an alarm, and the control system also includes symmetrically arranged air pressure sensors, the air pressure sensors are used to collect air pressure information of the corresponding fixed airbag (2), and the controller controls the alarm and the communication module to work according to the air pressure information.

5. The limb coordination assisting device for predicting stroke recurrence according to claim 4, characterized in that: The fixed air bags (2) are all arc-shaped.

6. The limb coordination assisting device for predicting stroke recurrence according to claim 5, characterized in that: It also includes an audio playback module, which is used to play voice to the patient. The controller is also used to receive demand information input by the user, and control the audio playback component to play the corresponding guiding task voice to the patient according to the demand information, and judge whether the patient has completed the guiding task according to the pressure information. When the patient completes the guiding task, the controller controls the audio playback component to work again to play encouraging voice to the user. When the patient does not complete the guiding task, the controller controls the communication module to work.

7. The limb coordination assisting device for predicting stroke recurrence according to claim 6, characterized in that: The controller is also used to calculate the time information from when the audio playback module finishes playing the guiding task voice to when the patient starts the guiding task. When the time information is greater than the preset time, the controller controls the communication module to work. When the time information is less than or equal to the preset time, the controller does not control the communication module to work.

8. The limb coordination assisting device for predicting stroke recurrence according to claim 7, characterized in that: The control system also includes an ultrasonic sensor, which is used to collect object information around the fixed part. The controller controls the alarm and the communication module to work according to the object information.

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