A cushion-type pelvic floor muscle rehabilitation system based on multi-modal perception and transcutaneous acupoint electrical stimulation

Abstract

The present application relates to the technical field of traditional Chinese medicine intelligent rehabilitation medical apparatus, and discloses a cushion type pelvic floor muscle rehabilitation system based on multi-modal perception and transcutaneous acupoint electrical stimulation, which comprises a cushion body, the upper surface of the cushion body is provided with a bearing area matched with the perineum and buttocks of a human body, and a pressure perception module is arranged in the cushion body and comprises a plurality of pressure sensors arranged in an array, wherein the cushion body of the present application integrates sensing and acupoint electrical stimulation components, adopts non-invasive physiotherapy of perineum, Changqiang and eight liao surface, and avoids privacy and damage problems caused by invasive probes. The time division multiplexing circuit ensures accurate acquisition of pelvic floor pressure signals, and can quantify qi deficiency and subsidence syndrome. The waistband multi-sensor identifies compensatory actions of spleen deficiency and kidney deficiency, and real-time error correction is realized. The device automatically switches the stimulation gear, realizes traditional Chinese medicine syndrome differentiation physiotherapy, forms a physiotherapy training tracking closed loop with an APP, is portable and low in cost, is suitable for traditional Chinese medicine rehabilitation in primary units and families, and has remarkable industrial value.

Description

Technical Field

[0001] This invention relates to the field of intelligent rehabilitation medical devices for traditional Chinese medicine, specifically a cushion-type pelvic floor muscle rehabilitation system based on multimodal perception and transcutaneous acupoint electrical stimulation. Background Technology

[0002] Pelvic floor dysfunction (PFD) is a common condition among postpartum women, primarily manifesting as stress urinary incontinence, pelvic organ prolapse, and sexual dysfunction. Epidemiological surveys show that the prevalence of urinary incontinence in postpartum women ranges from 10% to 50%, and the prevalence of pelvic organ prolapse can reach 72.83%. With approximately 15 million new mothers in my country each year, PFD has become a significant public health issue affecting women's quality of life.

[0003] Currently, clinical pelvic floor rehabilitation mainly includes two pathways: hospital-based treatment and home-based devices. Hospital-based treatments are represented by electrostimulation biofeedback therapy devices and magnetic stimulation chairs. The former requires inserting a vaginal probe to collect electromyographic signals and apply electrical stimulation, while the latter uses a high-intensity focused magnetic field to induce passive contraction of the pelvic floor muscles. Although these methods have been clinically proven effective, they have significant limitations: hospital rehabilitation is time-consuming, home-based invasive probes can easily cause feelings of privacy and embarrassment, device treatments are expensive, and there is a lack of continuous home tracking mechanisms, resulting in low user compliance and difficulty in guaranteeing training effectiveness.

[0004] The application of transcutaneous electrical stimulation (TEAS) in pelvic floor rehabilitation is supported by evidence-based medicine. Randomized controlled clinical trials have shown that the overall effective rate of TEAS combined with pelvic floor muscle training for stress urinary incontinence reaches 92.7%-95.56%, significantly better than the 70.7%-78.57% of pelvic floor muscle training alone. However, current TEAS treatments all rely on hospital settings and professional operation; there is currently no technical solution that combines TEAS with home-based smart rehabilitation devices. Therefore, we propose a cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous electrical stimulation to address the aforementioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation. This system solves the problems of existing pelvic floor rehabilitation devices, such as poor privacy of invasive probes, mutual signal interference, inability to identify Qi deficiency compensation, single stimulation parameters without TCM syndrome differentiation and adaptation, and lack of a complete rehabilitation closed loop.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation, comprising:

[0007] The seat cushion body has a support area on its upper surface that is adapted to the perineum and buttocks of the human body.

[0008] The pressure sensing module is located inside the seat cushion body and includes multiple pressure sensors arranged in an array to collect the pressure distribution signal of the perineal area generated by the contraction of the pelvic floor muscles when the user is sitting.

[0009] The transcutaneous acupoint electrical stimulation module is located inside the cushion body and in the bearing area corresponding to the perineum, Changqiang acupoint and Baliao acupoint of the human body. It includes multiple medical-grade conductive electrodes for outputting biphasic pulse square waves to electrically stimulate the acupoints.

[0010] The control box is located inside the seat cushion body;

[0011] A control module, located inside the control box, is connected to the pressure sensing module and the transcutaneous acupoint electrical stimulation module, respectively. It is used to receive and process the signals collected by the pressure sensing module, and control the output parameters of the transcutaneous acupoint electrical stimulation module according to the processing results.

[0012] A communication module, located inside the control box and connected to the control module, is used for data interaction with external terminal devices; and...

[0013] The multimodal compensation monitoring module includes the waist belt body and the posture sensing unit, breathing sensing unit and surface electromyography sensing unit integrated on the waist belt body, which are used to simultaneously collect the user's pelvic posture signal, breathing pattern signal and abdominal muscle activation signal.

[0014] The communication module is also used to transmit the signals collected by the multimodal compensation monitoring module to the control module or the external terminal device.

[0015] The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1 is characterized in that: the pressure sensor of the pressure sensing module is a flexible thin-film piezoresistive sensor, which is distributed in a 16-32 point array on the central axis of the cushion body and the corresponding area of ​​the perineum, the sensor range is 0-50 mmHg, the accuracy is ±1 mmHg, and the sampling frequency is 100 Hz.

[0016] Preferably, the pressure sensor of the pressure sensing module is a flexible thin-film piezoresistive sensor, which is arranged in a 16-32 point array on the central axis of the seat body and the corresponding area of ​​the perineum. The sensor has a range of 0-50 mmHg, an accuracy of ±1 mmHg, and a sampling frequency of 100 Hz.

[0017] Preferably, the frequency of the biphasic pulse square wave output by the transcutaneous acupoint electrical stimulation module is adjustable from 1 to 50 Hz, the pulse width is adjustable from 200 to 400 μs, and the current is adjustable from 0 to 30 mA.

[0018] Preferably, the pressure sensing module and the transcutaneous acupoint electrical stimulation module coexist using a time-division multiplexing circuit; the time-division multiplexing circuit is configured to: cut off the acquisition channel of the pressure sensing module and connect the TVS tube protection circuit during the output of electrical stimulation by the transcutaneous acupoint electrical stimulation module; and restore the acquisition of the pressure sensing module after a 20ms delay after the electrical stimulation ends.

[0019] Preferably, the posture sensing unit includes a triaxial accelerometer for detecting pelvic tilt angle; the breathing sensing unit includes a piezoelectric breathing sensor for identifying abdominal and thoracic breathing patterns and breath-holding behavior; and the surface electromyography sensing unit includes dry surface electromyography electrodes for acquiring activation signals of the rectus abdominis and external oblique muscles.

[0020] Preferably, the control module includes:

[0021] The signal preprocessing unit is used to filter, amplify, and perform analog-to-digital conversion on the pressure distribution signal, pelvic posture signal, breathing pattern signal, and abdominal muscle activation signal.

[0022] The feature extraction unit is used to extract the mean pressure, peak pressure, pressure rise slope, and pressure center displacement from the pressure distribution signal; to extract pitch and roll angles from the pelvic posture signal; to extract respiratory rate and the proportion of thoracoabdominal breathing from the breathing pattern signal; and to extract the root mean square value and average power frequency from the abdominal muscle activation signal; and,

[0023] The force exertion pattern recognition unit, constructed based on an LSTM temporal network, is used to identify three abnormal force exertion patterns and their severity, namely abdominal muscle compensation, breath-holding compensation, and hip compensation, based on the multi-source heterogeneous features output by the feature extraction unit.

[0024] Preferably, the control module further includes:

[0025] The pelvic floor muscle assessment unit, built based on the random forest algorithm, outputs pelvic floor muscle relaxation and strength grades based on resting pressure baseline, peak voluntary contraction pressure, endurance decay rate, and user data such as age, BMI, and delivery method.

[0026] The electrical stimulation parameter decision unit is used to dynamically adjust the frequency parameters of the transcutaneous acupoint electrical stimulation module based on the identification results of the force pattern recognition unit and the pelvic floor muscle assessment unit: when it is identified that the abdominal muscle compensation is the main factor and the resting tension is low, it automatically recommends 10Hz low-frequency stimulation of the Baliao acupoint; when it is identified that the breath-holding is frequent and the contraction endurance is poor, it automatically recommends 35Hz mid-frequency stimulation of the Huiyin acupoint.

[0027] Preferably, the external terminal device is a mobile phone or tablet computer, and the terminal device has a rehabilitation management application installed, the application including:

[0028] The data receiving and display module is used to receive and display the pressure distribution signal, force pattern recognition result and electrical stimulation parameters in real time;

[0029] The biofeedback training module is used to generate a gamified interactive interface based on the pressure distribution signal, and to map the pelvic floor muscle contraction intensity to the movement range of the game character in real time.

[0030] An electrical stimulation control interface is provided to offer adjustment options for the electrical stimulation parameters and acupoint location guidance diagrams; and,

[0031] The effect tracking module is used to record training calendar, muscle strength change curve, urinary incontinence log, and quality of life score.

[0032] Preferably, the shape of the cushion body is a teardrop shape, narrower at the front and wider at the back, with a length of 45cm and a width of 42cm. A shallow V-shaped groove with a depth of 3mm, a width of 2cm and a length of 15cm is provided in the center along the central axis. The shallow V-shaped groove is used to guide the pelvis to tilt forward 5° so that the perineal area fits the conductive electrodes of the transcutaneous acupoint electrical stimulation module. The overall thickness of the cushion body is 1.8-2.2cm.

[0033] Preferably, the control box is located at the lower rear of the seat cushion body, and the control box is flat with a thickness of 0.8cm; the waist belt body has a width of 5-8cm and a thickness of less than 0.5cm; the communication module adopts the BLE5.0 low-power Bluetooth protocol, uses the notify mode for data transmission, and only sends data packets when the signal change exceeds a preset threshold.

[0034] Beneficial effects

[0035] This invention provides a cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation. Compared with existing technologies, it has the following advantages:

[0036] This cushion-type pelvic floor muscle rehabilitation system, based on multimodal sensing and transcutaneous acupoint electrical stimulation, integrates a pressure sensing module and a transcutaneous acupoint electrical stimulation module into an integrated cushion body. It eliminates invasive probes and relies on a non-invasive physiotherapy plan based on the perineum, Changqiang, and Baliao acupoints of traditional Chinese medicine to fundamentally eliminate privacy embarrassment, mucosal damage, and the risk of cross-infection. The device is lightweight and portable, allowing for fragmented home-based traditional Chinese medicine pelvic floor physiotherapy, significantly reducing medical time and economic costs, and is suitable for family and community-based traditional Chinese medicine rehabilitation scenarios.

[0037] The control module is equipped with a time-division multiplexing isolation circuit, and a point-to-point full-domain pressure sensing module to eliminate electrical pulse acquisition noise, accurately collect pelvic floor tension data, realize the digital quantification of postpartum qi deficiency and sinking TCM syndrome, and provide reliable data support for individualized TCM physiotherapy.

[0038] Equipped with a multimodal compensation monitoring module, the waist belt itself is equipped with multiple types of sensor units to capture typical signs of Qi deficiency in traditional Chinese medicine, such as shortness of breath and abdominal muscle compensation, which correspond to spleen deficiency and kidney deficiency. The LSTM network identifies these signs in real time and provides voice guidance for proper exertion, eliminating the need for offline guidance from rehabilitation physicians and reducing the problem of incorrect exertion that could aggravate Qi deficiency and pelvic floor injury.

[0039] Based on multimodal TCM syndrome data, the system automatically switches between different TCM acupoint electrical stimulation levels, such as the Baliao acupoint (Hz for spleen strengthening) and the Huiyin acupoint (Hz for kidney tonification), to achieve syndrome-based physiotherapy for postpartum spleen and kidney deficiency. This overcomes the shortcomings of traditional equipment that provides uniform stimulation and lacks TCM syndrome differentiation and adaptation, thereby improving the effectiveness of TCM and Western medicine collaborative rehabilitation.

[0040] The communication module works in conjunction with a mobile app to build an integrated closed-loop system that combines TCM acupoint therapy, active Qi-boosting training, and syndrome tracking. Gamified training enhances long-term adherence. The hardware and algorithm layers form a complete technological barrier, aligning with the support policies for intelligent TCM equipment, and demonstrating significant market transformation and health economic value. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the seat cushion body structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the structure of the multimodal compensation monitoring module of the present invention;

[0043] Figure 3 This is a diagram of the overall hardware architecture of the system of this invention.

[0044] In the diagram: 101, seat cushion body; 102, pressure sensing module; 103, transcutaneous acupoint electrical stimulation module; 104, control box; 105, control module; 106, communication module; 2, multimodal compensation monitoring module; 201, waist belt body; 202, posture sensing unit; 203, respiration sensing unit; 204, surface electromyography sensing unit. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] like Figure 1-3 As shown:

[0047] A cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation includes a cushion body 101, a pressure sensing module 102, a transcutaneous acupoint electrical stimulation module 103, a control box 104, a built-in control module 105, and a communication module 106.

[0048] The seat cushion body 101 is narrower at the front and teardrop-shaped at the back, with a total length of 45cm, a width of 42cm, and an overall thickness of 1.8-2.2cm. A shallow V-groove with a depth of 3mm, a width of 2cm, and a length of 15cm is cut along the central axis of the seat cushion. When sitting, it guides the pelvis to tilt forward naturally by 5°, so that the skin of the perineum and the eight acupoints of traditional Chinese medicine can be completely in contact with the electrodes and sensors. The outer layer is made of breathable and skin-friendly silicone material and is removable and washable.

[0049] The pressure sensing module 102 is embedded in the bearing area of ​​the seat cushion. It uses a 16-32 point flexible thin film piezoresistive sensor array, which is evenly arranged along the central axis corresponding to the acupoints of the perineum and the eight liao points in traditional Chinese medicine. The sensor range is 0-50 mmHg, the measurement accuracy is ±1 mmHg, the sampling frequency is 100 Hz, and it captures the pressure value of the entire pelvic floor muscle contraction and relaxation in real time, thereby quantifying the pelvic floor tension state corresponding to the syndrome of qi deficiency and sinking in traditional Chinese medicine.

[0050] The transcutaneous acupoint electrical stimulation module 103 uses medical-grade conductive silicone electrodes embedded in three TCM acupoints: Huiyin (CV1), Changqiang (GV1), and Baliao (BL31). It outputs adjustable biphasic pulse square waves with parameters ranging from 1-50Hz frequency, 200-400μs pulse width, and 0-30mA current. It features two independent output levels adapted to TCM spleen-strengthening and kidney-tonifying mechanisms: a low-frequency (10Hz) level for spleen-strengthening and yang-raising intervention, and a mid-frequency (35Hz) level for kidney-tonifying and astringent intervention. A time-division multiplexing anti-interference circuit is used, with the pressure sensing module 102 and the transcutaneous acupoint electrical stimulation module 103 sharing a common control power supply. The circuit incorporates a built-in TVS protection diode. During the electrical stimulation pulse output phase, the pressure sensing module 102's acquisition channel is automatically cut off, and sampling resumes after a 20ms delay following stimulation, completely eliminating current noise interference and ensuring the purity of the pressure signal used for TCM syndrome quantification.

[0051] The control box 104, with a flat and thin structure, is only 0.8cm thick and is located at the bottom rear of the seat cushion. It integrates the control module 105 and the BLE5.0 communication module 106. The control module 105 is the core processing unit of the system, and is divided into four functional units:

[0052] The signal preprocessing unit receives raw signals from the pressure sensing module 102, waist belt posture / breathing / electromyography, and performs filtering, amplification, analog-to-digital conversion to eliminate motion and current noise and extract quantifiable physiological raw data of TCM syndromes.

[0053] The feature extraction unit automatically extracts multi-dimensional quantitative features: mean, peak value, contraction rise slope, and pressure center offset (corresponding to the tension index of Qi sinking in traditional Chinese medicine); the waist belt module extracts pelvic tilt angle, respiratory rate, chest and abdominal respiration ratio, and rectus abdominis electromyography amplitude (corresponding to Qi deficiency compensation).

[0054] The force pattern recognition unit, based on the LSTM temporal deep learning network, takes multi-source heterogeneous features as input, automatically identifies three types of compensatory force: abdominal muscles, breath-holding, and buttocks. These types of compensation are typical external signs of postpartum spleen and kidney qi deficiency, and outputs the compensation level.

[0055] The electrical stimulation parameter decision unit and pelvic floor muscle assessment unit integrate a random forest assessment model and calculate the Oxford muscle strength grade based on user age, BMI, delivery information, resting pressure baseline, and contraction endurance. Simultaneously, based on multimodal sensor data, it quantifies the characteristics of TCM Qi deficiency and sinking syndrome: low static pressure and excessive abdominal muscle compensation correspond to spleen deficiency and failure to ascend, automatically switching to 10Hz low-frequency TCM physiotherapy pulses at the Baliao acupoints; frequent breath-holding and poor contraction endurance correspond to kidney failure to store Qi, automatically switching to 35Hz medium-frequency TCM physiotherapy pulses at the Huiyin acupoint, dynamically adjusting the acupoint electrical stimulation output parameters in real time.

[0056] The communication module 106 adopts BLE5.0 low-power Bluetooth, which only uploads data packets when the signal characteristics exceed the threshold, reducing device power consumption, and transmits data between the seat cushion, waist belt and mobile APP in both directions, and synchronously feeds back quantitative rehabilitation data of TCM syndromes.

[0057] The multimodal compensation monitoring waist belt unit 2 is integrated with the waist belt body 201, posture sensing unit 202, piezoelectric breathing sensing unit 203, and dry surface electromyography sensing unit 204. The waist belt is 5-8cm wide and <0.5cm thick, and the elastic Velcro is suitable for various waist sizes.

[0058] The posture sensing unit 202 has a built-in triaxial accelerometer to monitor the anterior / posterior pelvic tilt angle in real time and identify the compensatory movement of lifting the buttocks due to qi deficiency; the breathing sensing unit 203 has a piezoelectric film sensor attached to the upper abdomen to distinguish between chest / abdominal breathing and capture the behavior of holding one's breath and exerting force due to kidney deficiency.

[0059] The surface electromyography (EMG) sensing unit 204 uses dry, non-adhesive electrodes that are attached to the rectus abdominis and external oblique muscles to collect signals of excessive abdominal activation caused by spleen deficiency. The waist belt collects all multimodal TCM syndrome-related data and transmits them synchronously to the seat control module 105 or a mobile terminal via Bluetooth.

[0060] The mobile app is installed on a phone / tablet and includes four main functional modules: a real-time data display module that visualizes pressure distribution, pelvic posture, breathing curve, and abdominal muscle electromyography intensity, and a real-time pop-up voice correction function to correct incorrect exertion related to Qi deficiency in Traditional Chinese Medicine.

[0061] The gamified biofeedback training module maps the pelvic floor contraction force to the actions of game characters, assisting in the implementation of traditional Chinese medicine-based active pelvic floor training to invigorate Qi and lift the body.

[0062] The electrical stimulation control interface allows for manual / automatic switching of the perineum, Changqiang, and Baliao acupoints, as well as frequency and current parameters, along with a diagram illustrating the acupoint locations in Traditional Chinese Medicine.

[0063] The rehabilitation effect tracking module automatically records daily training duration, muscle strength change curve, urinary incontinence self-assessment log, PFIQ-7 quality of life score, and generates a phased rehabilitation report combining traditional Chinese and Western medicine.

[0064] This implementation plan consists of three main parts: the seat cushion main unit assembly, the multimodal compensation monitoring module 2, and the mobile APP terminal. The seat cushion main unit includes the seat cushion body 101, the pressure sensing module 102, the transcutaneous acupoint electrical stimulation module 103, the control box 104, the built-in control module 105, and the communication module 106. The multimodal compensation monitoring module 2 includes the waist belt body 201, the posture sensing unit 202, the piezoelectric respiratory sensing unit 203, and the dry surface electromyography sensing unit 204. The hardware structure completes the entire rehabilitation process in eight steps: wearable positioning, multi-source synchronous acquisition, signal preprocessing, compensation recognition, synchronous syndrome muscle strength assessment of traditional Chinese and Western medicine, adaptive traditional Chinese medicine acupoint electrical stimulation regulation, integrated traditional Chinese and Western medicine biofeedback training, and closed-loop data storage. The entire software and hardware linkage mechanism is complete and the timing is clear.

[0065] The device is worn and ergonomically positioned. The user wraps the waist belt body 201 of the multimodal compensation monitoring module 2 around the waist and abdomen to fix it in place. This ensures that the posture sensing unit 202 fits the lower back and pelvic position, the breathing sensing unit 203 fits the upper abdominal area, and the dry surface electromyography sensing unit 204 fits the bilateral rectus abdominis muscles to collect signals of compensatory signs of spleen and kidney qi deficiency. Then, the user places the seat cushion body 101 on the seat and sits in the shallow V-groove on the central axis of the seat cushion body 101. The groove guides the pelvis to tilt forward naturally by 5°, so that the pressure sensing module 102 and the transcutaneous acupoint electrical stimulation module 103 can accurately fit the three traditional Chinese medicine acupoints: Huiyin, Changqiang, and Baliao. The user turns on the power of the control box 104, the control module 105 completes the power-on self-test, the communication module 106 starts the BLE5.0 Bluetooth broadcast, the mobile APP is paired and connected, and the whole device enters the standby state for real-time acquisition of traditional Chinese medicine syndrome data.

[0066] The system synchronously acquires raw physiological signals through dual channels, and uses time-division multiplexing circuitry to isolate interference. The system's seat cushion and lumbar belt collect raw data in parallel through dual channels for assessment in both traditional Chinese medicine and Western medicine. The seat cushion channel pressure sensing module 102 collects pelvic floor pressure at 100Hz, quantifying pelvic floor tension due to Qi deficiency and prolapse. The lumbar belt's sensing units synchronously collect Qi deficiency compensatory signs. The control module 105 isolates electrical stimulation noise through time-division multiplexing circuitry, ensuring accurate quantitative data for TCM syndromes. The transcutaneous acupoint electrical stimulation module 103 can output differentiated biphasic square waves adapted to TCM spleen-strengthening and kidney-tonifying acupoint therapy.

[0067] The control module 105 completes signal preprocessing and multidimensional TCM syndrome feature extraction. After uniformly denoising all raw sensor signals, the temporal feature vectors corresponding to spleen deficiency, kidney deficiency, and qi deficiency are extracted and sent to the LSTM power pattern recognition unit.

[0068] The LSTM network identifies compensatory exertion due to Qi deficiency and provides real-time feedback. The system identifies three typical compensatory behaviors related to Qi deficiency in Traditional Chinese Medicine: abdominal muscles, breath-holding, and gluteal muscles. It corrects incorrect exertion through voice prompts on the app, reducing pelvic floor injuries associated with spleen and kidney Qi deficiency.

[0069] Western medicine muscle strength grading and traditional Chinese medicine (TCM) Qi deficiency syndrome were simultaneously quantitatively assessed. A random forest model was used to complete the pelvic floor muscle strength grading, and multi-source sensor data was used to quantify postpartum spleen and kidney deficiency and Qi deficiency and prolapse syndrome in TCM, which served as the basis for switching the TCM acupoint electrical stimulation level.

[0070] The control module 105 adaptively adjusts the parameters of the TCM acupoint electrical stimulation module 103. If spleen deficiency and failure to ascend are determined, a 10Hz spleen-strengthening therapeutic pulse is output to the Baliao acupoint; if kidney deficiency and failure to store are determined, a 35Hz kidney-tonifying therapeutic pulse is output to the Huiyin acupoint, realizing personalized transdermal acupoint stimulation intervention in TCM.

[0071] A mobile app is used to conduct gamified active biofeedback training that integrates traditional Chinese medicine and Western medicine. Simultaneously, passive TEAS therapy at TCM acupoints and active pelvic floor Qi-boosting training are implemented, displaying real-time dynamic data on the improvement of TCM syndromes.

[0072] Training data storage and rehabilitation closed-loop iteration. Single training data is summarized and stored to generate a rehabilitation record combining traditional Chinese and Western medicine. The system automatically adjusts the acupoint electrical stimulation parameters for the next day based on the improvement of TCM syndromes, forming a fully automated TCM-Western medicine collaborative closed-loop rehabilitation process of "TCM syndrome collection - intelligent error correction - acupoint therapy - active lifting training - data review". After use, the seat cushion body 101 and waist belt body 201 can be disassembled, washed and stored.

[0073] This solution integrates a pressure sensing module 102 and a transcutaneous acupoint electrical stimulation module 103 into the integrated seat cushion body 101. It abandons invasive probes and relies on a non-invasive physiotherapy solution based on the perineum, Changqiang, and Baliao acupoints of traditional Chinese medicine to eliminate privacy embarrassment, mucosal damage and cross-infection risks from the root. The device is lightweight and portable, and can be used for fragmented home-based traditional Chinese medicine pelvic floor physiotherapy, which greatly reduces medical time and economic costs and is suitable for family and community-based traditional Chinese medicine rehabilitation scenarios.

[0074] The control module 105 is equipped with a time-division multiplexing isolation circuit, and is paired with a 16-32 point full-domain pressure sensing module 102 to eliminate electrical pulse acquisition noise, accurately collect pelvic floor tension data, realize the digital quantification of postpartum qi deficiency and sinking TCM syndrome, and provide reliable data support for individualized TCM physiotherapy.

[0075] Equipped with a multimodal compensation monitoring module 2, the waist belt body 201 is equipped with multiple types of sensor units to capture typical signs of Qi deficiency in traditional Chinese medicine, such as shortness of breath and abdominal muscle compensation, corresponding to spleen and kidney deficiency. The LSTM network identifies these signs in real time and provides voice guidance for proper exertion, eliminating the need for offline guidance from rehabilitation physicians and reducing the problem of incorrect exertion aggravating Qi deficiency pelvic floor damage.

[0076] Based on multimodal TCM syndrome data, the system automatically switches between different TCM acupoint electrical stimulation levels: 10Hz for spleen strengthening at Baliao acupoint and 35Hz for kidney tonification at Huiyin acupoint. It achieves syndrome-based physiotherapy for postpartum spleen and kidney deficiency, overcoming the shortcomings of traditional equipment that provides uniform stimulation and lacks TCM syndrome differentiation and adaptation, thus improving the effectiveness of TCM and Western medicine collaborative rehabilitation.

[0077] The communication module 106 links with a mobile APP to build an integrated closed-loop system of TCM acupoint therapy, active Qi-boosting training, and syndrome tracking. Gamified training improves long-term adherence. The hardware and algorithm layers form a complete technical barrier, which is in line with the support policies for TCM intelligent equipment and has outstanding market transformation and health economic value.

[0078] It should be noted that the control method of this invention is controlled by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0079] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this invention is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0080] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation, characterized in that: include: The seat cushion body (101) has a bearing area on its upper surface that is adapted to the perineum and buttocks of the human body. The pressure sensing module (102) is located inside the cushion body (101) and includes multiple pressure sensors arranged in an array to collect the pressure distribution signal of the perineal area generated by the contraction of the pelvic floor muscles when the user is sitting. The transcutaneous acupoint electrical stimulation module (103) is located inside the cushion body (101) and in the bearing area corresponding to the perineum, Changqiang acupoint and Baliao acupoint of the human body. It includes multiple medical-grade conductive electrodes for outputting biphasic pulse square waves to electrically stimulate the acupoints. The control box (104) is located inside the seat cushion body (101); The control module (105) is located inside the control box (104) and is connected to the pressure sensing module (102) and the transcutaneous acupoint electrical stimulation module (103) respectively. It is used to receive and process the signals collected by the pressure sensing module (102) and control the output parameters of the transcutaneous acupoint electrical stimulation module (103) according to the processing results. A communication module (106), located inside the control box (104) and connected to the control module (105), is used for data interaction with external terminal devices; and, The multimodal compensation monitoring module (2) includes a waist belt body (201) and a posture sensing unit (202), a breathing sensing unit (203) and a surface electromyography sensing unit (204) integrated on the waist belt body (201), which are used to simultaneously collect the user's pelvic posture signal, breathing pattern signal and abdominal muscle activation signal. The communication module (106) is also used to transmit the signals collected by the multimodal compensation monitoring module (2) to the control module (105) or the external terminal device.

2. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The pressure sensor of the pressure sensing module (102) is a flexible thin-film piezoresistive sensor, which is distributed in a 16-32 point array on the central axis of the cushion body (101) and the corresponding area of ​​the perineum. The sensor range is 0-50 mmHg, the accuracy is ±1 mmHg, and the sampling frequency is 100 Hz.

3. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The frequency of the biphasic pulse square wave output by the transcutaneous acupoint electrical stimulation module (103) is adjustable from 1 to 50 Hz, the pulse width is adjustable from 200 to 400 μs, and the current is adjustable from 0 to 30 mA.

4. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The pressure sensing module (102) and the transcutaneous acupoint electrical stimulation module (103) coexist using a time-division multiplexing circuit. The time-division multiplexing circuit is configured to: cut off the acquisition channel of the pressure sensing module (102) and connect the TVS tube protection circuit during the output of electrical stimulation by the transcutaneous acupoint electrical stimulation module (103); and restore the acquisition of the pressure sensing module (102) after a 20ms delay after the electrical stimulation ends.

5. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The posture sensing unit (202) includes a triaxial accelerometer for detecting pelvic tilt angle; the breathing sensing unit (203) includes a piezoelectric breathing sensor for identifying abdominal and thoracic breathing patterns and breath-holding behavior; the surface electromyography sensing unit (204) includes a dry surface electromyography electrode for acquiring activation signals of the rectus abdominis and external oblique muscles.

6. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The control module (105) includes: The signal preprocessing unit is used to filter, amplify, and perform analog-to-digital conversion on the pressure distribution signal, pelvic posture signal, breathing pattern signal, and abdominal muscle activation signal. The feature extraction unit is used to extract the mean pressure, peak pressure, pressure rise slope, and pressure center displacement from the pressure distribution signal; to extract pitch and roll angles from the pelvic posture signal; to extract respiratory rate and the proportion of thoracoabdominal breathing from the breathing pattern signal; and to extract the root mean square value and average power frequency from the abdominal muscle activation signal; and, The force exertion pattern recognition unit, constructed based on an LSTM temporal network, is used to identify three abnormal force exertion patterns and their severity, namely abdominal muscle compensation, breath-holding compensation, and hip compensation, based on the multi-source heterogeneous features output by the feature extraction unit.

7. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 6, characterized in that: The control module (105) further includes: The pelvic floor muscle assessment unit, built based on the random forest algorithm, outputs pelvic floor muscle relaxation and strength grades based on resting pressure baseline, peak voluntary contraction pressure, endurance decay rate, and user data such as age, BMI, and delivery method. The electrical stimulation parameter decision unit is used to dynamically adjust the frequency parameters of the transcutaneous acupoint electrical stimulation module (103) based on the identification results of the force pattern recognition unit and the pelvic floor muscle assessment unit: when it is identified that the abdominal muscle compensation is the main factor and the resting tension is low, it automatically recommends 10Hz low-frequency stimulation of the Baliao acupoint; when it is identified that the breath-holding is frequent and the contraction endurance is poor, it automatically recommends 35Hz medium-frequency stimulation of the perineum acupoint.

8. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The external terminal device is a mobile phone or tablet computer, and the terminal device has a rehabilitation management application installed. The application includes: The data receiving and display module is used to receive and display the pressure distribution signal, force pattern recognition result and electrical stimulation parameters in real time; The biofeedback training module is used to generate a gamified interactive interface based on the pressure distribution signal, and to map the pelvic floor muscle contraction intensity to the movement range of the game character in real time. An electrical stimulation control interface is provided to offer adjustment options for the electrical stimulation parameters and acupoint location guidance diagrams; and, The effect tracking module is used to record training calendar, muscle strength change curve, urinary incontinence log, and quality of life score.

9. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The seat cushion body (101) is teardrop-shaped, narrower at the front and wider at the back, with a length of 45cm and a width of 42cm. A shallow V-shaped groove with a depth of 3mm, a width of 2cm and a length of 15cm is provided in the center along the central axis. The shallow V-shaped groove is used to guide the pelvis to tilt forward 5° so that the perineal area fits the conductive electrode of the transcutaneous acupoint electrical stimulation module (103). The overall thickness of the seat cushion body (101) is 1.8-2.2cm.

10. The cushion-type pelvic floor muscle rehabilitation system based on multimodal sensing and transcutaneous acupoint electrical stimulation according to claim 1, characterized in that: The control box (104) is located at the lower rear of the seat cushion body (101). The control box (104) is flat and 0.8cm thick. The waist belt body (201) is 5-8cm wide and less than 0.5cm thick. The communication module (106) uses the BLE5.0 low-power Bluetooth protocol, uses the notify mode for data transmission, and only sends data packets when the signal change exceeds a preset threshold.

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