Therapeutic apparatus for feeling recovery of stroke patient

Abstract

The invention provides a therapeutic apparatus for feeling recovery of a stroke patient, and relates to the technical field of stroke treatment. The therapeutic apparatus for feeling recovery of the stroke patient comprises a therapeutic equipment center console, and is characterized in that the therapeutic equipment center console is used for controlling functional equipment of the therapeutic apparatus, and the equipment controlled by the therapeutic equipment center console comprises nerve stimulation equipment, signal acquisition and feedback equipment, core processing equipment and human-computer interaction interface display equipment; the nerve stimulation device comprises an electrical stimulation module, a magnetic stimulation module and a multi-mode stimulation module. Compared with traditional equipment, the treatment efficiency is improved by 50% or above, the problem of curative effect fluctuation caused by muscle force changes and focus differences of patients is solved through a dynamic threshold value and a personalized scheme algorithm, the equipment adaptation rate is improved to 95% or above, and the signal analysis precision and treatment pertinence of cerebral apoplexy perception recovery equipment are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stroke treatment, and in particular to a therapeutic apparatus for sensory recovery in stroke patients. Background Art

[0002] Stroke, also known as stroke, is an acute cerebrovascular disease with high morbidity, high disability rate and high mortality rate. Stroke patients often experience perceptual disorders, such as sensory impairment, sensory hypersensitivity, and anosognosia. Stroke not only brings great pain and inconvenience to patients, but also brings a heavy economic burden to families and society. These perceptual disorders seriously affect patients' daily living ability and rehabilitation effects. Traditional stroke rehabilitation treatments mainly include physical therapy, occupational therapy, speech therapy, etc. Although these methods can promote functional recovery of patients to a certain extent, the effect on perceptual recovery is limited.

[0003] Therefore, the present invention proposes a therapeutic device for sensory recovery of stroke patients, which stimulates and regulates the patient's nervous system to promote the recovery of perceptual function, thereby improving nervous system dysfunction and related diseases. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a therapeutic device for sensory recovery in stroke patients. By integrating visual gaze, tactile pressure, and electromyographic intention signals, it realizes full-link closed-loop control from "sensory input-neural processing-motor feedback", which improves the treatment efficiency by more than 50% compared with traditional equipment. In addition, the dynamic threshold and personalized solution algorithm solve the problem of fluctuation in therapeutic effect caused by changes in patient muscle strength and lesion differences. The device adaptation rate is increased to more than 95%, which significantly improves the signal analysis accuracy and treatment targeting of stroke perception recovery equipment, and provides core technical support for the research and development of intelligent rehabilitation equipment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A therapeutic device for sensory recovery of stroke patients, including a therapeutic device console, characterized in that: the therapeutic device console is used to control the functional devices of the therapeutic device, the devices controlled by the therapeutic device console include a neural stimulation device, a signal acquisition and feedback device, a core processing device and a human-computer interaction interface display device, the neural stimulation device includes an electrical stimulation module, a magnetic stimulation module and a multimodal stimulation module, the signal acquisition and feedback device includes a biological signal sensor, an environmental perception sensor and a feedback output device, the core processing device includes a signal processing engine, data evaluation monitoring and treatment plan generation, the human-computer interaction interface supports parameter setting and adjustment and real-time data viewing, and performs data storage and export functions.

[0007] Furthermore, the carrier device of the neural stimulation device is an electrode cap. The electrical stimulation function of the electrode cap includes transcranial electrical stimulation function and neuromuscular electrical stimulation function. The electrode patch acts on the target brain area and peripheral sensory nerves to activate the sensory afferent pathway. The magnetic stimulation device of the electrode cap integrates a transcranial magnetic stimulation coil to generate a high-frequency or low-frequency magnetic field to target and regulate the brain's perceptual processing center. The multimodal stimulation of the electrode cap realizes multimodal stimulation by achieving pressure feedback through tactile vibration stimulation.

[0008] Furthermore, the biological signal sensors of the signal acquisition and feedback device include surface electromyography electrodes, inertial sensors and tactile pressure sensors. The carrier device of the environmental perception sensor is an electrode cap, and an eye tracking camera and a VR head display playback device are provided inside the electrode cap. The feedback device includes a tactile feedback handle, a visual display screen and a voice output device.

[0009] Furthermore, the signal processing engine of the core processing module performs preprocessing and closed-loop feedback calculation on the collected signal data, and constructs a classification decision function for the accurate classification of the sensory impairment types of stroke patients:

[0010]

[0011] Among them, x is the patient feature vector, Φ(x) is the feature space mapping function, α i is the Lagrange multiplier, and b is the classification hyperplane offset.

[0012] Furthermore, for the impairment classification of stroke patients, during the stimulation process, the stimulation intensity output by the electrode cap is adjusted. Based on the correct response rate R (range 0-1) of the patient's real-time feedback, a piecewise linear function is used to dynamically adjust the stimulation intensity:

[0013]

[0014] Among them, ΔS is the intensity adjustment step, η is the attenuation coefficient, S min is the safe stimulation threshold.

[0015] Furthermore, when the signal processing engine processes the environmental perception signal, it obtains the joint motion trajectory coordinates (x t ,y t ) and target trajectory Calculate the dynamic time warping distance:

[0016]

[0017] Where φ is the time warping function, satisfying φ(1)=1,φ(K)=K,|φ(i)-φ(i-1)|≤1,

[0018] q i =(x i ,y i ,θ i ) is the joint angle θ i The three-dimensional state vector of

[0019] Furthermore, the data evaluation and monitoring function monitors the power data output by the neurostimulation device in real time, displays stimulation parameters such as current intensity and magnetic field intensity as well as current frequency, biological signals including electromyography amplitude, EEG alpha wave power, training progress such as task completion rate, reaction time, and automatically generates pre- and post-treatment comparison reports, supporting statistical analysis functions.

[0020] Furthermore, the treatment plan generation function includes personalized treatment plans, with standard plans preset for common disorders such as visual agnosia, tactile loss, and spatial neglect, and plans can be customized based on patient assessment results.

[0021] The present invention provides a therapeutic device for sensory recovery in stroke patients. It has the following beneficial effects:

[0022] The present invention provides a therapeutic device for sensory restoration in stroke patients. By integrating visual gaze, tactile pressure, and electromyographic intention signals, it realizes full-link closed-loop control from "sensory input-neural processing-motor feedback", which improves the treatment efficiency by more than 50% compared with traditional equipment. In addition, the dynamic threshold and personalized solution algorithm solve the problem of fluctuation in therapeutic effect caused by changes in patient muscle strength and differences in lesions. The device adaptation rate is increased to more than 95%, which significantly improves the signal analysis accuracy and treatment targeting of stroke perception recovery equipment, and provides core technical support for the research and development of intelligent rehabilitation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural and functional framework diagram of the therapeutic device for sensory recovery of stroke patients of the present invention;

[0024] Figure 2 This is a diagram of the treatment steps of the therapeutic device for sensory recovery of stroke patients according to the present invention. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1:

[0027] like Figure 1 As shown, an embodiment of the present invention provides a therapeutic device for sensory restoration of stroke patients. The central console of the therapeutic device is used to control the functional devices of the therapeutic device. The devices controlled by the central console of the therapeutic device include a neural stimulation device, a signal acquisition and feedback device, a core processing device and a human-computer interaction interface display device. The neural stimulation device includes an electrical stimulation module, a magnetic stimulation module and a multimodal stimulation module. The signal acquisition and feedback device includes a biological signal sensor, an environmental perception sensor and a feedback output device. The core processing device includes a signal processing engine, data evaluation monitoring and treatment plan generation. The human-computer interaction interface supports parameter setting and adjustment and real-time data viewing, and performs data storage and export functions.

[0028] Example 2:

[0029] like Figure 1-2 As shown, an embodiment of the present invention provides a therapeutic instrument for sensory recovery of stroke patients, the carrier device of the nerve stimulation device is an electrode cap, the electrical stimulation function of the electrode cap includes transcranial electrical stimulation function and neuromuscular electrical stimulation function, which acts on the target brain area and peripheral sensory nerves through the electrode sheet to activate the sensory afferent pathway, the magnetic stimulation device of the electrode cap integrates a transcranial magnetic stimulation coil to generate a high-frequency or low-frequency magnetic field, and targets and regulates the brain's perceptual processing center, the multimodal stimulation of the electrode cap realizes pressure feedback through tactile vibration stimulation to realize multimodal stimulation, the biosignal sensor of the signal acquisition and feedback device includes a surface electromyography electrode, an inertial sensor and a tactile pressure sensor, the carrier device of the environmental perception sensor is the electrode cap, and an eye tracking camera and a VR head display playback device are provided inside the electrode cap, and the feedback setting device includes a tactile feedback handle, a visual display screen and a voice output device;

[0030] The signal processing engine of the core processing module performs preprocessing and closed-loop feedback calculations on the collected signal data, accurately classifying the types of sensory impairments in stroke patients and building a classification decision function:

[0031]

[0032] Among them, x is the patient feature vector, Φ(x) is the feature space mapping function, α i is the Lagrange multiplier, b is the classification hyperplane offset;

[0033] According to the impairment classification of stroke patients, during the stimulation process, the stimulation intensity output by the electrode cap is adjusted. Based on the correct response rate R (range 0-1) of the patient's real-time feedback, a piecewise linear function is used to dynamically adjust the stimulation intensity:

[0034]

[0035] Among them, ΔS is the intensity adjustment step, η is the attenuation coefficient, Smin is the safety stimulation threshold;

[0036] When the signal processing engine processes the environmental perception signal, it obtains the joint motion trajectory coordinates (x t ,y t ) and target trajectory Calculate the dynamic time warping distance:

[0037]

[0038] Where φ is the time warping function, satisfying φ(1)=1,φ(K)=K,|φ(i)-φ(i-1)|≤1,

[0039] q i =(x i ,y i ,θ i ) is the joint angle θ i The three-dimensional state vector of

[0040] The data evaluation and monitoring function monitors the power data output by the neurostimulation device in real time, displaying stimulation parameters such as current intensity, magnetic field intensity, and current frequency, biological signals including electromyography amplitude, EEG alpha wave power, training progress such as task completion rate, reaction time, and automatically generates before-and-after treatment comparison reports. It supports statistical analysis functions, and the treatment plan generation function includes personalized treatment plans, preset standard plans for common disorders such as visual agnosia, tactile loss, and spatial neglect, and can customize plans based on patient evaluation results.

[0041] Working principle: The treatment steps for the therapeutic device used to restore sensation in stroke patients are as follows:

[0042] Step 1: Accurate assessment: conduct an assessment and formulate a treatment plan before treatment. Use neurological function tests and standardized scales to determine the type of perceptual impairment and the degree of damage. Combined with imaging examinations, locate the lesion and analyze the damaged brain area. Confirm that damage to the parietal cortex causes tactile agnosia and damage to the right temporoparietal junction causes hemispatial neglect.

[0043] Step 2: Targeted stimulation: Targeted stimulation is performed based on the type of impairment being assessed. A VR headset is used to electrically stimulate the visual cortex, while tactile vibration gloves and magnetic stimulation of the median nerve are used. The stimulation intensity is set at the threshold at which the patient just perceives the vibration. Simultaneously, electrical and magnetic stimulation functions are activated, along with external sensory stimulation.

[0044] Step 3: Closed-loop training: The device automatically outputs fixed-frequency stimulation, and the patient only needs to passively accept it. The electromyographic signals are synchronously collected to evaluate the neural response. After the passive stimulation, the patient needs to actively complete small movements to trigger NMES to enhance muscle contraction. At the same time, the patient observes the limb movement trajectory on the screen to correct abnormal perception.

[0045] Step 4: Task-oriented: Complete functional tasks in the VR scene. The device dynamically adjusts the stimulation intensity according to the degree of action completion to strengthen sensory-motor coordination ability.

[0046] Step 5: Dynamic adjustment: Medical staff monitor the patient's response through the human-machine interface, observe threshold changes through simple tests, record the patient's subjective feelings, and analyze biosignal data. By recording the data, they can switch the stimulation mode or adjust the target point, and adjust the stimulation intensity or replace the electrode pads according to adverse reactions, thereby adjusting the treatment effect.

[0047] In this article, there are several points to note:

[0048] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0049] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A therapeutic device for sensory recovery in stroke patients, comprising a therapeutic device console, characterized in that: The therapeutic equipment console is used to control the functional equipment of the therapeutic instrument. The equipment controlled by the therapeutic equipment console includes a neural stimulation device, a signal acquisition and feedback device, a core processing device and a human-computer interaction interface display device. The neural stimulation device includes an electrical stimulation module, a magnetic stimulation module and a multimodal stimulation module. The signal acquisition and feedback device includes a biological signal sensor, an environmental perception sensor and a feedback output device. The core processing device includes a signal processing engine, data evaluation monitoring and treatment plan generation. The human-computer interaction interface supports parameter setting and adjustment and real-time data viewing, and performs data storage and export functions.

2. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: The carrier device of the neural stimulation device is an electrode cap. The electrical stimulation function of the electrode cap includes transcranial electrical stimulation function and neuromuscular electrical stimulation function. The electrode patch acts on the target brain area and peripheral sensory nerves to activate the sensory afferent pathway. The magnetic stimulation device of the electrode cap integrates a transcranial magnetic stimulation coil to generate a high-frequency or low-frequency magnetic field to target and regulate the brain's perceptual processing center. The multimodal stimulation of the electrode cap realizes multimodal stimulation through pressure feedback through tactile vibration stimulation.

3. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: The biological signal sensors of the signal acquisition and feedback device include surface electromyography electrodes, inertial sensors and tactile pressure sensors. The carrier device of the environmental perception sensor is an electrode cap, and an eye-tracking camera and a VR head display playback device are installed inside the electrode cap. The feedback device includes a tactile feedback handle, a visual display screen and a voice output device.

4. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: The signal processing engine of the core processing module performs preprocessing and closed-loop feedback calculations on the collected signal data, and constructs a classification decision function for the accurate classification of the sensory impairment types of stroke patients: Among them, x is the patient feature vector, Φ(x) is the feature space mapping function, α i is the Lagrange multiplier, and b is the classification hyperplane offset.

5. The therapeutic device for sensory recovery of stroke patients according to claim 4, characterized in that: According to the impairment classification of stroke patients, during the stimulation process, the stimulation intensity output by the electrode cap is adjusted. Based on the correct response rate R (range 0-1) of the patient's real-time feedback, a piecewise linear function is used to dynamically adjust the stimulation intensity: Among them, ΔS is the intensity adjustment step, η is the attenuation coefficient, S min is the safe stimulation threshold.

6. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: When the signal processing engine processes the environmental perception signal, it obtains the joint motion trajectory coordinates (x t ,y t ) and target trajectory Calculate the dynamic time warping distance: Where φ is the time warping function, satisfying φ(1)=1,φ(K)=K,|φ(i)-φ(i-1)|≤1,q i =(x i ,y i ,θ i ) is the joint angle θ i The three-dimensional state vector of .

7. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: The data evaluation and monitoring function monitors the power data output by the neurostimulation device in real time, displays stimulation parameters such as current intensity and magnetic field intensity as well as current frequency, biological signals including electromyography amplitude, EEG alpha wave power, training progress such as task completion rate, reaction time, and automatically generates pre- and post-treatment comparison reports, supporting statistical analysis functions.

8. The therapeutic device for sensory recovery of stroke patients according to claim 1, characterized in that: The treatment plan generation function includes personalized treatment plans, preset standard plans for common disorders such as visual agnosia, tactile loss, and spatial neglect, and can customize plans based on patient assessment results.

Images