System for treating overactive bladder by applying time domain interference technology

Abstract

The invention belongs to the technical field of medical systems, and discloses a system for treating overactive bladder by applying a time domain interference technology, and the system comprises a signal generator which is used for generating two paths of intermediate-frequency AC electric signals, the frequency range of the intermediate-frequency AC electric signals is 1 kHz to 10 kHz, and the frequency difference of the two paths of intermediate-frequency AC electric signals is 1 Hz to 200 Hz; the electrode array is connected with the signal generator and is used for transmitting the two paths of intermediate-frequency alternating-current electric signals to the body surface of the sacral region of the patient; and the control unit is connected with the signal generator and is used for adjusting the frequency difference, the amplitude and the treatment mode of the intermediate-frequency alternating-current electric signal. According to the scheme, a time domain interference technology is used, and intermediate-frequency current and multiple electric field superposition are used, so that tissues can be better penetrated, targeted stimulation of deep sacral nerves is realized, and abnormal activities of the bladder are inhibited. The system supports a static difference frequency mode and a dynamic difference frequency mode, the nerve adaptability is avoided, and the long-term curative effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical systems, and more particularly to a system for treating overactive bladder using time domain interference technology. Background Art

[0002] Overactive bladder (OAB) is a common cause of urge urinary incontinence in the elderly and young people. The detrusor muscle often contracts spontaneously for unknown reasons when the bladder is partially or nearly full. The main manifestations are urinary urgency, frequent urination and urinary incontinence.

[0003] Traditional treatments include medication, behavioral therapy, and neuromodulation techniques. The effectiveness of medication and behavioral therapy is limited and requires a certain level of patient compliance. Sacral neuromodulation (SNM) is an effective neuromodulation technique, but its invasiveness and high cost limit its widespread application. Conventional transcutaneous electrical nerve stimulation (TENS) also has some limitations when applied to sacral nerves:

[0004] 1. Insufficient stimulation depth: TENS mainly transmits electrical signals through surface electrodes, which limits the therapeutic effect, especially for the regulation of deep nerve tissue.

[0005] 2. Low stimulation accuracy: The electric field of TENS is widely distributed, making it difficult to accurately focus on the target nerves. It may stimulate non-target areas, leading to unnecessary side effects or insignificant treatment effects.

[0006] 3. Signal attenuation: Electrical signals will significantly attenuate when passing through the skin and tissues, so a higher intensity current is required to reach the deep nerves, increasing patient discomfort and the risk of skin irritation. This may lead to poor patient tolerance and affect the continuity and compliance of treatment. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a system for treating overactive bladder using time domain interference technology.

[0008] To solve the above problems, the present invention adopts the following technical solutions:

[0009] A system for treating overactive bladder using time domain interference technology, comprising:

[0010] A signal generator, used to generate two intermediate frequency AC signals, wherein the frequency range of the intermediate frequency AC signals is 1kHz to 10kHz, and the frequency difference between the two intermediate frequency AC signals is between 1Hz and 200Hz;

[0011] An electrode array, connected to the signal generator, for transmitting two intermediate frequency alternating current signals to the body surface of the patient's sacral region;

[0012] A control unit, connected to the signal generator, for adjusting the frequency difference, amplitude and treatment mode of the intermediate frequency alternating current signal;

[0013] The two intermediate frequency AC signals are superimposed in the patient's body to generate a low frequency envelope signal, the frequency of which is the frequency difference between the two intermediate frequency AC signals, and is used to stimulate the sacral nerves to inhibit overactive bladder.

[0014] As a further solution of the present invention: the frequency difference between the two intermediate frequency alternating current signals output by the signal generator is a fixed value, forming a static difference frequency mode, and the frequency of the low frequency envelope signal is constant.

[0015] As a further solution of the present invention: the frequency difference of the two intermediate frequency AC signals output by the signal generator changes dynamically over time to form a dynamic difference frequency mode, and the frequency of the low frequency envelope signal changes periodically or non-periodically within a preset range.

[0016] As a further solution of the present invention: the electrode array includes at least two pairs of electrodes, which are arranged on the skin surface of the patient's sacral region and form conductive contact with the skin.

[0017] As a further solution of the present invention: the control unit includes a user interface for setting treatment parameters, and the treatment parameters include the amplitude of the medium frequency alternating current signal, the difference frequency mode, the difference frequency range and the treatment duration.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] 1. Non-invasive: Stimulation is delivered through surface electrodes without the need for surgical implantation, reducing patient pain and infection risks.

[0020] 2. Precise control: Time domain interference technology can accurately stimulate deep nerve tissue and improve treatment effects.

[0021] 3. Widely applicable: It is suitable for OAB patients of different ages and conditions and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a system diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the working principle of the present invention;

[0024] Figure 3 A schematic diagram of a medium frequency alternating current signal and a low frequency envelope formed by the signal according to the present invention;

[0025] Figure 4 It is a schematic diagram of the intermediate frequency waveform of the dynamic difference frequency of the present invention.

[0026] Description of the numbers in the figure:

[0027] 001. Signal generator;

[0028] 002. Electrode array;

[0029] 003. Control unit. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0031] See also Figure 1 , a system for treating overactive bladder using time domain interference technology, comprising: a signal generator 001, an electrode array 002 and a control unit 003

[0032] The signal generator 001 is used to generate two medium frequency AC signals, the frequency range of the medium frequency AC signals is 1kHz to 10kHz, and the frequency difference between the two medium frequency AC signals is between 1Hz and 200Hz, so as to produce a time domain interference effect. The electrode array 002 is connected to the signal generator 001 and is used to transmit the two medium frequency AC signals to the body surface of the patient's sacral region. The control unit 003 is connected to the signal generator 001 and is used to adjust the frequency difference, amplitude and treatment mode of the medium frequency AC signals.

[0033] The two intermediate frequency AC signals are superimposed in the patient's body to generate a low frequency envelope signal. The frequency of the low frequency envelope signal is the frequency difference between the two intermediate frequency AC signals, which is used to stimulate the sacral nerves to inhibit overactive bladder.

[0034] Working principle:

[0035] Signal generation: The signal generator 001 generates two intermediate frequency alternating current signals, which are transmitted to the patient's body surface through the electrode array 002;

[0036] Time domain interference: Two intermediate frequency signals are superimposed in the body to generate low-frequency envelope signals, which accurately stimulate the sacral nerves;

[0037] Neuromodulation: Low-frequency envelope signals regulate sacral nerve activity, inhibit overactive bladder, and improve OAB symptoms. Figure 2It is a schematic diagram of the intermediate frequency signal and the low-frequency envelope it forms.

[0038] It should be noted that the treatment modes include static difference frequency and dynamic (scanning) difference frequency.

[0039] Among them, static difference frequency means that the frequency difference between the two intermediate frequency AC signals remains constant, and the frequency of the generated low-frequency envelope signal remains unchanged. Its principle: the frequency difference between the two intermediate frequency AC signals (such as 4kHz and 4.1kHz) is a fixed value (such as 100Hz). After superimposition in the target tissue, a low-frequency envelope signal with a frequency of the difference frequency (100Hz) is generated. This envelope signal can selectively stimulate deep nerve tissue. Features: Fixed frequency: The frequency of the low-frequency envelope signal is constant, which is suitable for scenes requiring stable stimulation. Stable stimulation effect: Since the frequency remains unchanged, the stimulation effect is predictable and easy to control. Simple implementation: The technical implementation is relatively simple, and the complexity of the signal generation and control system is low. The frequency difference between the two intermediate frequency AC signals output by the signal generator 001 is a fixed value, forming a static difference frequency mode, and the frequency of the low-frequency envelope signal is constant.

[0040] Dynamic difference frequency means that the frequency difference between two intermediate frequency AC signals changes with time, and the frequency of the generated low-frequency envelope signal also changes accordingly. Its principle: The frequency difference between two intermediate frequency AC signals changes dynamically within a certain range (such as from 5Hz to 55Hz). After superposition in the target tissue, the frequency of the generated low-frequency envelope signal also changes dynamically. This dynamic change can avoid the adaptability of neural tissue to a single frequency and improve the stimulation effect. Features: Frequency change: The frequency of the low-frequency envelope signal changes with time, and the stimulation mode is more diversified. Avoid neural adaptability: Dynamically changing frequency can prevent the adaptability of neural tissue to stimulation and maintain long-term treatment effects. High technical complexity: requires more complex signal generation and control systems. Such as Figure 3 It is a schematic diagram of the intermediate frequency waveform of the dynamic difference frequency.

[0041] The frequency difference of the two intermediate frequency AC signals output by the signal generator 001 changes dynamically over time to form a dynamic difference frequency mode, and the frequency of the low frequency envelope signal changes periodically or non-periodically within a preset range.

[0042] In addition, the electrode array 002 includes at least two pairs of electrodes, which are arranged on the skin surface of the patient's sacral region and form conductive contact with the skin. The control unit 003 includes a user interface for setting treatment parameters, which include the amplitude of the intermediate frequency alternating current signal, the difference frequency mode, the difference frequency range and the treatment duration.

[0043] In summary: This solution uses time domain interference technology, and by using medium frequency current and multiple electric field superposition, it can better penetrate the tissue, achieve targeted stimulation of deep sacral nerves, and inhibit abnormal bladder activity. The system supports two modes: static difference frequency and dynamic difference frequency, avoiding nerve adaptability and improving long-term efficacy.

[0044] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A system for treating overactive bladder using time domain interference technology, characterized in that: include: A signal generator (001) is used to generate two intermediate frequency alternating current signals, wherein the intermediate frequency alternating current signals have a frequency range of 1 kHz to 10 kHz, and a frequency difference between the two intermediate frequency alternating current signals is between 1 Hz and 200 Hz; An electrode array (002), connected to the signal generator (001), for transmitting two medium-frequency alternating current signals to the body surface of the patient's sacral region; A control unit (003), connected to the signal generator (001), for adjusting the frequency difference, amplitude and treatment mode of the intermediate frequency alternating current signal; The two intermediate frequency AC signals are superimposed in the patient's body to generate a low frequency envelope signal, the frequency of which is the frequency difference between the two intermediate frequency AC signals, and is used to stimulate the sacral nerves to inhibit overactive bladder.

2. A system for treating overactive bladder using time domain interference technology according to claim 1, characterized in that: The frequency difference between the two intermediate frequency alternating current signals output by the signal generator (001) is a fixed value, forming a static difference frequency mode, and the frequency of the low frequency envelope signal is constant.

3. A system for treating overactive bladder using time domain interference technology according to claim 1, characterized in that: The frequency difference of the two intermediate frequency alternating current signals output by the signal generator (001) changes dynamically over time to form a dynamic difference frequency mode, and the frequency of the low frequency envelope signal changes periodically or non-periodically within a preset range.

4. A system for treating overactive bladder using time domain interference technology according to claim 1, characterized in that: The electrode array (002) comprises at least two pairs of electrodes, which are arranged on the skin surface of the patient's sacral region and form conductive contact with the skin.

5. A system for treating overactive bladder using time domain interference technology according to claim 1, characterized in that: The control unit (003) comprises a user interface for setting treatment parameters, wherein the treatment parameters include the amplitude of the intermediate frequency alternating current signal, the difference frequency mode, the difference frequency range and the treatment duration.

Images