TWM635976U - AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night - Google Patents

Abstract

An AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night, including a set of conductive soft cloth protectors wrapped around the legs and an APP monitoring software for mobile devices; the conductive soft cloth protectors contain AI control circuits , FES functional electrical stimulation pole piece and PPG heart rate sensor; PPG heart rate sensor includes an LED light emitter and a photoelectric sensing element, the photoelectric sensing element absorbs the LED light emitted by the LED light emitter to irradiate the leg blood vessels The reflected light, and use the principle of photoelectric conversion to record the current signal detected by the light in the blood vessel due to the change of blood flow. The blood flow rate changes with the beating of the heart, and the PPG photoelectric sensing element will follow the blood volume. And changes in the contraction and expansion of blood vessels, so that the photoelectric sensing element produces periodic light and dark changes, so the heart rate can be obtained, and at the same time, the PPG heart rate detection is used to detect the systolic and diastolic cycles of the heart. In the diastolic phase of the cycle, the FES functional electrical stimulation pole piece coated on the leg will expand the range of electrical stimulation from the calf to the thigh through the AI control circuit in order to generate electrical stimulation to make the muscle contract, which in turn causes the blood vessel to contract, and finally releases it together All electrical stimulation; and through the mobile device APP monitoring software, the conductive soft cloth protective gear is controlled by wireless remote control, and various operations such as PPG heart rate sensing and FES functional electrical stimulation are implemented. This functional electrical stimulation promotes blood return. Non-invasive treatment methods can improve the problem of frequent urination in the elderly at night, and can promote the blood circulation of the elderly, effectively improving their health.

Description

An AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night

This creation is an AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination at night for the elderly. It uses PPG photoelectric sensing technology to obtain important cardiac physiological signals, and then uses AI to calculate relevant data, so as to control the device with high conductivity and contained electricity. The conductive soft cloth protector of the stimulation electrode implements EES functional electrical stimulation (Functional Electrical Stimulation).

PPG is photoplethysmography, which is the abbreviation of Photoplethysmography. It is a non-invasive detection method for detecting blood volume changes in human tissue by photoelectric sensing technology. The principle of light energy records the signal detected by the light in the blood vessel due to the change of blood flow pulsation; the blood flow per unit area in the blood vessel will change with the beating of the heart, and the photoelectric sensing element will follow the blood volume. The change of the induced voltage makes the induced voltage also change. The period of absorbing the most light is just the period of systole, so the amplitude of the PPG signal is proportional to the amount of blood entering and leaving the tissue; when the light beam of a certain wavelength irradiates the surface of the human skin, with each A heartbeat, contraction and expansion of blood vessels will affect the reflection of light. When the light source is reflected to the photoelectric sensing element through the skin, the absorption of light by muscles, bones and other tissues is basically The light does not change, but the blood is different. The blood flow in the blood vessel will change the absorption of light. When the light is converted into an electrical signal, the obtained signal can be divided into a direct current DC signal and an alternating current AC signal. The direct current DC signal comes from muscles, bones and other tissues, and the AC signal comes from the flow of blood in blood vessels, which is the heart Changes in blood volume during the systolic and diastolic phases, and the measured results periodically present the peaks representing the compression of the heart and the troughs of the diastole, and the heart rate can be obtained by extracting the time interval between the two peaks, and using AI The calculation further obtains various parameters related to this creation.

This creation uses FES functional electrical stimulation to promote blood circulation in the lower limbs of the human body, that is, the legs. FES is functional electrical stimulation (FES), which is a kind of neuromuscular electrical stimulation (NES). Intensity low-frequency pulse current stimulates one or more groups of muscles with preset parameters such as frequency, duty cycle and current intensity, so as to induce muscle movement or simulate normal voluntary movement; the physiological action principle of FES is to use nerve cells Electrical excitability, by stimulating the nerves that control the muscles to make the muscles contract, so it requires that the stimulated muscles must have complete innervation; low-frequency currents act on the nerve cell membranes, which can generate action potentials on neurons, which are generated by electrical stimulation. The action potential of the action potential is the same as the action potential produced by the natural physiological state, and has the characteristics of "all or nothing"; the stimulation pulse of appropriate intensity outputs enough electric charges to stimulate neurons to generate an action potential, when the pulse wave of electrical stimulation When the width increases or the current intensity increases, the stimulation will spread far away from the electrode attachment, thereby causing more contraction of muscle fibers. FES uses the response of nerve cells to electrical stimulation to transmit external artificial control signals; through Under the action of external current, nerve cells can generate a nerve impulse that is exactly the same as the action potential caused by natural excitation, so that the muscle fibers controlled by it will contract, and the contraction range of such muscle fibers will be expanded from the calf to the thigh in sequence, and the The veins adjacent to these peripheral muscles of the legs are squeezed from the calf to the thigh to achieve the effect of promoting blood return, thereby improving the circulation of the lower limbs, and the problem of frequent urination at night in the elderly can also be alleviated.

The elderly will often get up to go to the toilet in the middle of the night and affect their sleep quality. This kind of frequent urination at night is not only bad for the next day, but also leads to many health problems in the long run. One of the main causes of frequent urination at night is poor circulation and edema in the lower limbs. When standing, the water in the body will accumulate in the legs. When lying flat at night, the remaining water and blood will flow back to the heart, and then circulate from the heart to the kidneys to produce urine to be excreted. Generally, doctors will advise patients to consider wearing elastic stockings. Or elevate the feet in the afternoon and before night to promote the return of water and venous blood so as to remove more water; although the above treatments are simple, the effect is limited, so now the medical community is using non-invasive mechanical assisted circulation devices outside the body Counterpulsation therapy EECP (Enhanced External Counter Pulsation) can effectively increase the blood perfusion of the heart and various organs of the body, increase the blood supply, improve ischemia, and have obvious effects on blood circulation. However, the equipment is bulky and can only It is operated and used by medical staff in hospitals, and due to its high cost of use, the number of elderly patients who can make full use of this equipment is actually very limited. Over time, for elderly patients, frequent urination at night, a non-immediate disease, is often ignored. .

In view of this, this creation uses PPG sensing technology, and uses AI to control the conductive soft cloth protective gear with high conductivity, and uses the heart rate-related information measured by PPG to control and implement FES functional electrical stimulation (functional electrical stimulation) , through the effect of external current, use AI calculation to control multiple electrical stimulation pole pieces, so as to control the muscle fibers of the legs to contract and then make the blood vessels contract, and obtain the effect of positive pressure feedback perfusion, so that the circulation of the lower limbs is improved, and the problem of frequent urination in the elderly at night can be improved.

With the characteristics of the light and portable wearable device of this creation, it can make the original mobile Elderly patients who are inconvenient can easily put on this device. As long as there is a suitable place, they can control the conductive soft cloth protector of this device through the APP monitoring software of the mobile device to perform effective positive pressure feedback and perfusion of the lower limbs, and improve the elderly in time. Frequent urination at night.

This creation adopts photoplethysmography (PPG for short) in which MW-PPG (Multi-wavelength photoplethysmography, that is, multi-wavelength photoplethysmography): Compared with SW-PPG (Single-wavelength photoplethysmography, that is Single-wavelength photoplethysmography method) has higher heart rate measurement error and is more susceptible to interference from skin color, skin surface temperature, and sensor contact pressure. MW-PPG can select the most suitable wavelength to select the best quality PPG signal, and at the same time The light source with the best wavelength can be selected for users with different skin and temperature, thereby improving the accuracy of heart rate sensing and the S/N ratio of the PPG signal.

This creation is an AI wearable device that uses positive pressure lower limb feedback perfusion to improve nighttime frequent urination for the elderly. It uses FES functional electrical stimulation to exert dynamic muscle positive pressure action on the lower limbs, and outputs current to the leg muscles through the electrical stimulation electrode to make it Contract or relax to achieve the function of feedback perfusion of the lower limbs; the principle is that when the heart contracts, that is, when the heart is pushing blood to various parts of the body, the conductive soft cloth protector stops outputting current. At this time, the leg muscles are relaxed and the blood vessels are also In a relaxed state, blood can easily flow to the legs, so the systolic blood pressure can be slightly lower, reducing the burden on the heart; when the heart is relaxed, the conductive soft cloth protector will output current to make the leg muscles contract, thereby promoting blood vessel contraction, Pushing the blood increases the amount of blood returning to the heart, that is, increasing the diastolic pressure. At the same time, it uses the expansion of the tiny blood vessel network to develop new blood flow veins, especially around the blocked arteries, and finally allows the blood flow to return to the heart normally. A long time can further improve the frequent urination of the elderly at night; the actual method is that in each cardiac cycle, after the heart contracts, it takes a period of time for the blood to reach the lower limbs after being sent from the heart, that is, the pulse wave transmission time Pulse Transit Time (PTT), via which Time-delay effect, PPG is used to measure the expansion of blood flow in arteries and capillaries due to heart compression in the lower limbs, so the peak can be obtained. At this time, the heart is already in a relaxed state, that is, a single FES electrical stimulation is started, so that FES Action and output current, through electrical stimulation, the muscles contract and then the blood vessels contract, pushing the blood to increase the blood flowing back to the heart; FES single electrical stimulation is based on the creation of electrical stimulation with the smallest time unit, and its duration varies according to different testers The heart rate varies depending on the difference, usually between 200ms-450ms. If safety factors are considered, it is advisable to set it within 150ms; At this time, the heart begins to wait for the next compression action, and at this time the FES is also in a stopped state; a cardiac cycle of the heart includes a contraction and relaxation, which means that this creation can perform a single FES electrical stimulation, and a meaningful The FES functional electrical stimulation course includes many times of FES single electrical stimulation and time delay.

1: An AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night

11: Conductive soft cloth protective gear

111: Flexible electronic substrate

1111: lithium rechargeable battery

1112:Micro USB power connector

1113: Power Management Unit

1114: wireless transceiver unit

1115: FES functional electrical stimulation control unit

1116:AI micro-processing unit

112:Nano silver glue line

113: FES functional electrical stimulation pole piece

114: PPG heart rate sensor

115: Gravity sensor

116:Surface EMG sensor

12: Mobile device APP monitoring software

121: Activate or deactivate the conductive soft cloth protective gear

122: Basic inspection

123: Heart rate detection and display

124: FES operation mode

125: FES click time

126: FES action cycle

1261: FES implementation interval

1262: FES pause interval

127: FES single course time

128: Start FES

129: Stop FES

2: cloud

3: Remote remote control management center

P1: Program 1

P2: program 2

P3: program 3

P4: Program 4

P5: program 5

P6: Program 6

D1: Judgment 1

D2: Judgment 2

D3: Judgment 3

Figure 1 is a schematic diagram of the overall function of the wireless transceiver of the embodiment of an AI wearable device that uses positive pressure lower extremity feedback perfusion to improve nighttime frequent urination for the elderly; Figure 2 is an AI wearable device that uses positive pressure lower limb feedback perfusion to improve elderly nighttime frequent urination , the appearance schematic diagram of the conductive soft cloth protective gear; Figure 3 is the functional block diagram of the conductive soft cloth protective gear, an AI wearable device that uses positive pressure lower limb feedback perfusion to improve the frequent urination of the elderly at night; Schematic diagram of the electronic circuit of the FES functional electric stimulation control unit, an AI wearable device for feedback perfusion to improve the frequent urination of the elderly at night; Figure 5 is a schematic diagram of the all-in-one waveform of the cardiac cycle of the human heart; Figure 6 is a waveform diagram of the relative time relationship of ECG-PPG; Figure 7 is an AI wearable device created by the company to improve the frequent urination of the elderly at night with positive pressure lower limb feedback perfusion, and its FES single Schematic diagram of the complete action flow of the electrical stimulation; Figure 8 is a schematic diagram of the names of FES functional electrical stimulation in different time intervals for the AI wearable device that uses positive pressure lower limb feedback perfusion to improve the frequent urination of the elderly at night; Figure 9 is a schematic diagram of the FES positive pressure lower limb implementation Schematic diagram of the process.

As shown in Figure 1, this creation uses positive pressure lower limb feedback perfusion to improve the elderly's nighttime frequent urination AI wearable device (1), which includes a set of conductive soft cloth protectors (11) wrapped around the calf and thigh and a mobile device APP monitoring software (12), and the APP monitoring software (12) of the mobile device can be executed and transferred to the cloud (2) and be controlled by the remote control management center (3).

Figure 2 is a schematic diagram of the appearance of the conductive soft cloth protector (11). There is one piece for the thigh and one for the lower leg, plus the left and right legs need to be covered, which is a set of four pieces in total; each piece of protector contains a flexible electronic substrate (111), nano-silver glue circuit (112), FES functional electrical stimulation pole piece (113), PPG heart rate sensor (114), gravity sensor (115) and surface electromyography sensor (116); With the characteristics of bluetooth wireless transmission, the mobile device APP monitoring software (12) can effectively control any conductive soft cloth protector (11) on both legs.

The appearance of the conductive soft cloth protector (11) is a calf cover and a thigh cover. In this way, the entire part of the calf and thigh to be positively stimulated by electric stimulation can be covered, and at the same time, all components can be closely attached to the skin of the leg , to ensure correct functionality.

After this creation, the coating method endows the conductive soft cloth protector (11) with nano-silver glue lines (112) with conductive function on the original textile fibers, as shown in Figure 2 and Figure 3, the nano-silver glue lines The source of (112) comes from the flexible electronic substrate (111), which is the entity of the AI control circuit, and the substrate is located on the top of each protective gear; the nano silver glue circuit (112) will extend to the entire part of the protective gear, and its Each terminal has a PPG heart rate sensor (114), a gravity sensor (115), a surface electromyography sensor (116) and a plurality of FES functional electrical stimulation pole pieces (113), among which the PPG heart rate sensor ( 114) Located at the bottom of each piece of protective equipment. For the calf protective equipment, the PPG heart rate sensor (114) is located on the inner side of the calf lower edge near the ankle. This position is more suitable for fixing the PPG heart rate sensor (114) , and located at the lowermost edge of the calf, which is also the lowermost edge of the lower body of the human body except the soles of the feet. It is very suitable for detecting the PPG signal. The peak of the PPG signal waveform at this part can be used to judge whether the blood sent by the heart has been sent to the At the last part of the lower limbs, FES functional electrical stimulation can be started to help push the blood that wants to return back to the heart.

The PPG heart rate sensor (114) of the thigh protector will not be used under normal conditions, that is, the thigh and calf protectors are operated at the same time. Only when the calf protector is lacking, the user's calf can wear it The specially adjusted thigh protector can only be used normally through the advanced settings of the mobile device APP monitoring software (12).

As shown in Figure 3, the flexible electronic substrate (111) includes a lithium rechargeable battery (1111), a Micro USB power connector (1112), a power management unit (1113), a wireless transceiver unit (1114), a FES functional electrical stimulation control unit ( 1115) and AI micro-processing unit (1116).

A lithium rechargeable battery (1111) provides sufficient electric power for the conductive soft cloth protector (11).

A Micro USB power connector (1112), which can accept external power.

A power management unit (1113), accepting lithium rechargeable battery (1111) and Micro USB The external power supply of the power connector (1112) is responsible for charging the lithium rechargeable battery (1111), and at the same time distributes various voltage sources to the entire system;

A wireless transceiver unit (1114), including a 2.4GHz bluetooth wireless transceiver module and a ceramic antenna, can be connected with a remote mobile device.

The AI micro-processing unit (1116) can receive instructions from the mobile device APP monitoring software (12) through the wireless transceiver unit (1114) to perform FES functional electrical stimulation, and at the same time detect relevant physiological parameters and send them back to the mobile device APP monitoring software (12).

Under normal use, the PPG heart rate sensor (114) of the thigh brace does not need to be detected, and the AI micro-processing unit (1116) can be confirmed by an electronic circuit that detects a very simple pull high or pull low potential Whether the protective device belongs to the calf protective device or the thigh protective device determines whether the PPG heart rate sensor (114) of the protective device needs to be activated.

The conductive soft cloth protector (11) includes a gravity sensor (115), i.e. G-sensor, which can determine the posture of the user's legs, and the conductive soft cloth protector (11) returns the induction values of the G-sensor of both legs to It is transmitted to the mobile device APP monitoring software (12), and then the mobile device APP monitoring software (12) judges whether the user's leg posture meets the requirements of implementing FES positive pressure on the lower limbs. Basically, the user can only do it when sitting or lying down. Able to perform FES positive pressure on the lower limbs, especially in the lying position, some of the other positions are not suitable, and some are not needed.

The FES functional electrical stimulation control unit (1115) can generate preset electrical stimulation signals, and these signals finally arrive at the terminal of the nano-silver colloid circuit (112), that is, a plurality of FES functional electrical stimulation pole pieces (113). The design can expand the range of electrical stimulation from the lowermost edge of the calf to the thigh in an approximately stepless fine-tuning method until it reaches the uppermost edge of the thigh. The entire leg has been stimulated. At this time, the electrical stimulation is released together to discharge All positive pressure actions, thus completing a FES Single electrical stimulation.

When the AI intelligence of the FES electric stimulation operation mode is turned on, the surface electromyography sensor (116) will be started to detect at this time, and the sensor can immediately detect whether there is normal movement after the thigh and calf muscles are electrically stimulated. Contraction response, if the reaction or contraction of the leg muscles is not as expected or exceeds the normal value, the AI micro-processing unit (1116) will automatically adjust the intensity of the electrical stimulation until the surface myoelectric sensor (116) senses a reasonable muscle Reaction and contraction degree; if the surface electromyography sensor (116) can not get a reasonable response all the time, the AI micro-processing unit (1116) will report this situation to the mobile device APP monitoring software (12) through wireless means, and the mobile device The APP monitoring software (12) reminds the user to adjust the protective gear until the protective gear fits properly on the leg.

Figure 4 is a schematic diagram of the electronic circuit of the FES functional electrical stimulation control unit (1115). The FES functional electrical stimulation control unit (1115) accepts the control of the AI micro-processing unit (1116), and can produce approximately stepless fine-tuning In order to achieve this purpose, the AI micro-processing unit (1116) constructs a sufficient number of output ports to the FES functional electrical stimulation control unit (1115), and through the serial communication bus such as i ² c and The output ports respectively control the digital potentiometer and the single-pole single-throw switch. The digital potentiometer is responsible for the intensity of FES electrical stimulation, and the single-pole single-throw switch is responsible for the opening, closing and working cycle of the electrical stimulation electrode.

This work uses FES functional electrical stimulation to apply dynamic muscle positive pressure to the lower limbs, so that the leg muscles contract or relax to achieve the function of feedback perfusion of the lower limbs; the principle is that when the heart contracts, the conductive soft cloth protective gear (11) When the output current is stopped, the muscles are relaxed at this time, and the blood vessels are also in a relaxed state, so the systolic blood pressure can be slightly lowered, reducing the burden on the heart; when the heart is relaxed, the conductive soft cloth protector will output current to make the muscles contract, and the blood vessels contract at this time , push the blood to increase the blood flow back to the heart, that is, increase the diastolic pressure, and at the same time use the expansion of the tiny blood vessel network to develop The new blood flow veins, especially around the clogged arteries, will eventually allow the blood flow to return to the heart normally, which will further improve nighttime frequent urination in the elderly over a long period of time; Afterwards, as shown in Figure 6, the waveform diagram of the relative time relationship between ECG-PPG, it takes a period of time for the blood to reach the lower limbs of the body after being sent from the heart, which is the pulse wave transit time (Pulse Transit Time (PTT). Through this time delay effect, The arteries and capillaries of the lower extremities expand and expand, so the PPG peak can be measured. At this time, the FES can be activated and output current, and the muscles can be contracted through electrical stimulation, thereby causing the blood vessels to contract, pushing the blood and allowing a large amount of blood to flow back to the heart. Increase.

Figure 5 is a schematic diagram of the all-in-one waveform of the heart cycle. The second waveform below it is the electrocardiogram. Compared with Figure 6, when the peak of the PPG is measured at the end of the calf, the heart is already in a diastolic state, and the ventricles are gradually increasing. In the process of filling blood, this time point is set as point A, as shown in Figure 5 and Figure 6, respectively. At this time, positive pressure can be immediately applied to the lower limbs of the human body with FES to promote the return of blood to the heart.

Set the duration of a single FES electrical stimulation as the FES click time (125); as shown in Figure 5 and Figure 6, from the perspective of the time axis, the heart is in a diastolic state during the entire process of the ventricle gradually filling with blood, which is the 5. In the diastolic period, about 1/3 of the time point after the start of the diastolic period is the starting point of the FES positive pressure lower limb electrical stimulation in this creation, which is point A; on the other hand, the heart rate can be from the peak to the bottom of the PPG waveform. The time difference between a wave peak or the RR interval of the R wave of the electrocardiogram is directly converted. Assuming that the heart rate of the average person is 60 to 100 beats per minute, the RR interval is converted into 1 second to 0.6 seconds. The faster the heart rate, the shorter the RR interval. And vice versa; in addition to using the PPG peak as the starting point A of the FES positive pressure lower limb electric shock, the FES click time (125) is also a very important value. Observe the ventricular volume waveform in Figure 5. One ventricular volume waveform period is one heartbeat cycle, and the time of the cycle is equal to In an RR interval, if you want to obtain the FES click time (125), take the 100 times with the fastest heart rate in a conservative manner, and the RR interval is 0.6 seconds = 600 milliseconds as an example. Compare Figure 5 and Figure 6 interactively. The peak of the PPG waveform in 6, that is, point A, falls on about 1/3 of the rising interval of the ventricular volume waveform in Figure 5. From the measurement of the ventricular volume waveform in Figure 5, it can be known that point A has exceeded the center point of the ventricular volume waveform cycle, and by It is about 270ms (milliseconds) from point A to the end point of the ventricular volume waveform period, which is the maximum value of FES click time (125) under the condition of heart rate 100.

Considering safety factors such as a small number of patients with a fast heart rate and the power supply capacity of mobile devices in this creation, it is reasonable to set the maximum value of the FES click time (125) as half of 270ms, which is 135ms, and the integer is 150ms.

Figure 8 is a schematic diagram of the names of the FES functional electrical stimulation in different time intervals based on the PPG signal waveform, all of which can be adjusted in the mobile device APP monitoring software (12).

As shown in Figure 7, it is the complete action flow of implementing a single FES electrical stimulation. The arrow in the figure is the virtual positive pressure. The electrical stimulation starts from the end of the calf in Figure 7a, and increases in sequence as shown in Figure 7b and Figure 7c. The range of electrical stimulation reaches the top of the thigh, and finally, as shown in Figure 7d, the entire leg is within the range of electrical stimulation, and finally all the electrical stimulation is released together, as shown in Figure 7e; based on the design concept of this creation, Under default conditions, the maximum time-consuming of the whole process is 150 milliseconds (ms).

Figure 9 is a schematic diagram of the implementation process of FES positive pressure on the lower limbs. As shown in program 1 (P1), the conductive soft cloth protector (11) receives the start FES (128) command from the mobile device APP monitoring software (12) Afterwards, as shown in program 2 (P2), the PPG initial heart rate measurement is continuously implemented, the purpose is to confirm whether the user’s PPG heart rate has reached a stable state, as shown in judgment 1 (D1), if it has not reached a stable state , then continue to make measurements; once a steady state is reached, subtract the first For the unstable data of the period, as shown in program 3 (P3), the average heart rate value obtained under the steady state is temporarily stored, that is, the stable heart rate value is temporarily stored, and the function of the FES action cycle (126) is only started at this time Sexual electrical stimulation.

Continuing from the previous section, a FES action cycle (126) is the FES implementation interval (1261) (for example, 5 seconds) plus the FES pause interval (1262) (for example, 3 seconds), since each PPG waveform peak is a single electric current of each FES. The starting point of stimulation, during the implementation of FES functional electrical stimulation, the AI micro-processing unit (1116) has its own timer, but it will still detect each PPG waveform peak at any time; assuming a heart rate of about 60 per minute For a user who performs an 8-second FES action cycle (126), which includes a 5-second FES implementation interval (1261) and a 3-second FES pause interval (1262), the functional electrical stimulation is equivalent to implementing 5 FES singles. The second electrical stimulation plus a 3-second delay time.

Continuing from the previous section, as shown in program 4 (P4), after completing the functional electrical stimulation in the FES implementation interval (1261) according to the needs, as shown in program 5 (P5), the functional electrical stimulation must be stopped, and Delay for a period of time, that is, the FES pause interval (1262); after that, it will first judge whether the whole process has reached the FES single treatment time (127) (such as 10 minutes), or is forced to stop, that is, as shown in Judgment 2 (D2), If it is met, this process will end, otherwise, as shown in program 6 (P6), the continuous PPG heart rate measurement will be carried out on the user again in the form of AI. The purpose is also to confirm whether the user's PPG heart rate value has reached a stable state. Compare the average heart rate value obtained in this stable state with the heart rate value temporarily stored at the beginning, as shown in Judgment 3 (D3), if it is outside the error, return to program 6 (P6) and continue to perform PPG heart rate Measure until the PPG heart rate value and the initially temporarily stored data are within the error range, then the functional electrical stimulation for the next wave of FES action cycle (126) can be restarted, that is, return to program 4 (P4).

In this creation, the mobile device APP monitoring software (12) is used to control the conductive soft cloth protective gear (11) by wireless remote control, and implement various operations such as PPG heart rate sensing and FES functional electrical stimulation, including:

1. Activate or deactivate the conductive soft cloth protector (121);

2. Basic inspection (122), including battery capacity, date and time, and at the same time, the protective gear is also checked, and the user's physical fitness is judged by four gravity sensors (115) located on the left and right legs of the protective gear, their thighs, and calves. Whether the posture of the legs meets the requirements for performing FES positive pressure on the lower limbs. The user can only perform FES positive pressure on the lower limbs when sitting or lying down. The lying position is the best. Some other postures are not suitable, and some are not needed ;

3. Heart rate detection and display (123);

4. Adjust the FES operation mode (124), there are three types of weak, medium and strong, and there is an AI smart option. When the AI smart is turned on, the surface electromyography sensor (116) can detect the user's ability to accept the FES functional electric current. Whether the contraction and response of the muscles of the lower limbs is normal during stimulation, if not, it can be fed back to the APP monitoring software (12) of the mobile device in real time, so that the user can further adjust the protective gear until the protective gear fits properly on the leg .

5. Adjust the FES click time (125), the adjustment range is 50-150 milliseconds (ms); when the AI intelligence of the FES operation mode (124) is turned on, the FES click time (125) will be adjusted according to the AI algorithm to The most appropriate time without being limited by the adjustment range of 50-150 milliseconds (ms);

6. Adjust the FES action cycle (126), including the FES implementation interval (1261) (for example, 5 seconds) and the FES pause interval (1262) (for example, 3 seconds);

7. Set the FES single treatment time (127), such as 5 minutes, 10 minutes or 30 minutes;

8. Start FES (128);

9. Stop FES (129).

11: Conductive soft cloth protective gear

111: Flexible electronic substrate

112:Nano silver glue line

113: FES functional electrical stimulation pole piece

114: PPG heart rate sensor

115: Gravity sensor

116:Surface EMG sensor

Claims (10)

An AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night, including: A set of conductive soft cloth protectors, tied to the elastic fiber cloth protectors that originally covered the lower legs and thighs of the human body, weaving the soft electronic substrate containing the AI control circuit, and coating the elastic textile fibers The nano-silver glue circuit with conductive function, its source comes from the soft electronic substrate on the top of the protective gear, and extends to the entire part of the protective gear, and its terminal is PPG heart rate sensor, gravity sensor, surface electromyography sensor device and FES functional electrical stimulation pole piece; a mobile device APP monitoring software, which can effectively control any conductive soft cloth protector on the legs through the characteristics of Bluetooth wireless transmission, so that its AI control circuit can use the pre-set various The item parameter outputs the electrical stimulation signal to the FES functional electrical stimulation electrode, which stimulates the leg muscles to contract and then the blood vessels to constrict, so as to achieve the perfusion effect of the blood in the legs being fed back by positive pressure, so as to improve the frequent urination problem of the elderly at night and promote blood circulation in the elderly. Circulation, effectively improve the health of the body. For example, in claim 1, the AI wearable device for improving night-time frequent urination of the elderly with positive pressure lower limb feedback perfusion, wherein the shape of the conductive soft cloth protector is a calf cover and a thigh cover, which can cover the entire calf and thigh to be covered Electrically stimulate the positive pressure area, and at the same time, all the sensors can be closely attached to the skin of the leg to ensure the correctness of the function. For example, in claim 1, the AI wearable device for improving night-time frequent urination of the elderly with positive pressure lower limb feedback perfusion, wherein the PPG heart rate sensor contained in the conductive soft cloth protector adopts the MW-PPG method, that is, multi-wavelength photovolume change tracing method. Such as request item 1, using positive pressure lower limb feedback perfusion to improve the elderly frequent urination at night AI wear Wearing device, wherein the PPG heart rate sensor of the conductive soft cloth protector includes an LED light emitter and a photoelectric sensing element, and the photoelectric sensing element absorbs the light reflected by the LED light emitted by the LED light emitter and irradiated by the leg blood vessels , using the principle of photoelectric conversion, as the blood vessels and blood flow velocity change due to the beating of the heart, the reflected light received by the PPG photoelectric sensing element will produce periodic light and dark with the changes in blood volume and blood vessel contraction and expansion The change of the heart rate can be obtained by this periodic change; and the systole and diastole cycle of the heart can be calculated by PPG heart rate detection. In each cardiac cycle, when the heart contracts, the conductive soft cloth When the functional electrical stimulation of the protective gear is stopped, the leg muscles are relaxed and the blood vessels are also in a relaxed state, so the systolic blood pressure can be reduced and the burden on the heart is reduced; when the heart is diastolic, the PPG peak will be the starting time point, and the wrapped The FES functional electrical stimulation pole piece on the entire leg expands from the calf to the thigh sequentially through the AI control circuit to generate electrical stimulation to cause muscle contraction, thereby promoting blood vessel contraction, pushing blood to increase the blood returning to the heart; after the electrical stimulation is completed Release the electrical stimulation of the whole leg together, so as to complete a single FES electrical stimulation; under default conditions, the maximum duration of a single FES electrical stimulation in a peak-to-peak period of a PPG waveform will be limited to 150 Milliseconds, but when the AI intelligence is turned on, this duration will be adjusted to the most appropriate time according to the AI algorithm, and is not limited thereto; and a meaningful FES functional electrical stimulation course includes many times of FES single sessions Electrical stimulation versus time delay. Such as claim item 4, AI wearable device for improving nighttime frequent urination of the elderly with positive pressure lower limb feedback perfusion, wherein the conductive soft cloth protector starts continuous PPG heart rate measurement after the FES positive pressure lower limb electrical stimulation function is activated, so as to confirm Is the user's PPG heart rate value up to Once the stable state is reached, the average heart rate value in this stable state will be temporarily stored, and the FES positive pressure lower limb electrical stimulation function will be officially implemented, because each PPG waveform peak is the start of each FES single electrical stimulation Therefore, within the time interval of the preset number of seconds, several consecutive FES single electrical stimulations can be completed; then the implementation of functional electrical stimulation is stopped, and the delay is delayed for a preset number of seconds, and then the use of the FES is resumed. The user implements continuous PPG heart rate measurement, and after confirming that the user's heart rate is in a stable state, restarts the next wave of FES positive pressure electrical stimulation of the lower limbs, and repeats this until the entire implementation of electrical stimulation time reaches the preset minute The number of courses of treatment. For example, claim item 1 is an AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night, wherein the conductive soft cloth protector uses a lithium rechargeable battery as a power source, and a Micro USB power connector provides an external power source for insertion into the user. Such as claim item 1, the AI wearable device for improving the frequent urination of the elderly at night by positive pressure lower limb feedback perfusion, wherein the wireless transceiver unit of the conductive soft cloth protector contains a Bluetooth wireless transceiver module and a ceramic antenna, and has a wireless Two-way transfer function. For example, in claim 1, the AI wearable device for improving frequent urination of the elderly at night by using positive pressure lower limb feedback perfusion, wherein the gravity sensor contained in the conductive soft cloth protector can detect the posture of the user's lower limbs, so as to avoid falling in bad posture FES positive pressure lower extremity function was implemented under the circumstances. Such as the AI wearable device of request item 1, which uses positive pressure lower limb feedback perfusion to improve nighttime frequent urination of the elderly, wherein the surface electromyography sensor contained in the conductive soft cloth protector can detect the user's acceptance of the FES function under AI intelligence Whether the contraction and response of the lower limb muscles is normal during sexual electrical stimulation, if not, it can be fed back to the APP monitoring software of the mobile device in real time, so as to be able to Allow the user to further adjust the brace until the brace fits properly on the leg. For example, in request item 1, an AI wearable device that uses positive pressure lower limb feedback perfusion to improve frequent urination in the elderly at night, in which the APP monitoring software of the mobile device can perform 1. activate or deactivate the conductive soft cloth protective gear, 2. basic inspection, 3. heart rate detection 9 functions including and display, 4. Adjust FES operation mode, 5. Adjust FES single electrical stimulation duration, 6. Adjust FES action cycle, 7. Set FES single treatment time, 8. Start FES and 9. Stop FES, etc. .

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