CN114146306A - Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback - Google Patents

Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback Download PDF

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Publication number
CN114146306A
CN114146306A CN202111631232.3A CN202111631232A CN114146306A CN 114146306 A CN114146306 A CN 114146306A CN 202111631232 A CN202111631232 A CN 202111631232A CN 114146306 A CN114146306 A CN 114146306A
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China
Prior art keywords
stimulation
electrodes
electrode
muscle contraction
resistance
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刘业海
华仁军
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Hefei Zhifa Nature Electronic Technology Co ltd
First Affiliated Hospital of Anhui Medical University
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Hefei Zhifa Nature Electronic Technology Co ltd
First Affiliated Hospital of Anhui Medical University
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0408—Use-related aspects
    • A61N1/0452—Specially adapted for transcutaneous muscle stimulation [TMS]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A61N1/0404—Electrodes for external use
    • A61N1/0472—Structure-related aspects
    • A61N1/0492—Patch electrodes

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrotherapy Devices (AREA)

Abstract

The application relates to the field of application of electric pulse technology, in particular to an electrode plate for percutaneous electric stimulation, which comprises a resistance-type film pressure sensor and a plurality of electrodes positioned on the surface of the resistance-type film pressure sensor, wherein the number of the electrodes is at least 3; the resistance type film pressure sensor and the electrodes are connected and matched with the electric stimulator for use, and the electrodes are attached to the skin. This application is amazing at first for a short time of output by the electro stimulator to through resistance-type film pressure sensor, find out the biggest electrode group of muscle contraction intensity, then to this electrode group output long term stimulation under the normal condition, guaranteed amazing effect. Meanwhile, the electric stimulator is matched with the resistance-type film pressure sensor to judge whether the muscle contraction strength is weakened during long-term stimulation, if the muscle contraction strength is weakened, the short-term stimulation is carried out again, the electrode group with the maximum muscle contraction strength is found out for long-term stimulation, the effect of optimizing the stimulation effect is achieved, and the muscle contraction strength at the stimulation position is guaranteed to be maximum.

Description

Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback
Technical Field
The application relates to the field of electric pulse technology application, in particular to a percutaneous electric stimulation electrode plate.
Background
The use of transcutaneous electrical stimulation in the human body has been subject to much research and development, and there has been a mature application and development in the existing major field of electrical stimulation, and the main application directions thereof have the following aspects:
(1) exciting neuromuscular tissue
(2) Promoting local blood circulation
(3) Pain relief
(4) Promoting tissue regeneration
In the process of treatment related to percutaneous electrical stimulation, a certain reduction of stimulation effect is often encountered, which is often shown in that a subject finds that muscle vibration at a relevant stimulation position is obviously changed under the stimulation of the same stimulator at different times, that is, under the condition of the same stimulation source, the muscle contraction strength at the stimulation position is changed, and the stimulation effect is good or bad and the muscle contraction strength at the stimulation position has an obvious positive correlation.
It has been found through experiments that the above problems are caused by the following 2 reasons:
(1) the position of the electrode slice at the stimulation part is displaced
(2) The neuromuscular distribution at the stimulation part is partially changed with the relaxation state of the body position, skin and muscle
For the reason 1, the muscle contraction strength at the stimulation part can be adjusted by re-pasting the electrode plate to achieve a better stimulation state, but for the reason 2, the effect of adjusting the stimulation state by re-pasting the electrode plate is difficult to achieve. Because the nerves and muscles at the stimulation site are dynamically distributed during the stimulation process and change with the position, skin and muscle relaxation, the stimulation effect may not be good, and the reason 2 is common in people of any age.
Disclosure of Invention
In order to solve the above problems, the present application provides a percutaneous electrical stimulation electrode patch with adjustable stimulation area based on pressure signal feedback, which includes a resistance-type thin film pressure sensor, and a plurality of electrodes located on the surface of the resistance-type thin film pressure sensor, where the number of the electrodes is at least 3; the resistance-type film pressure sensor and the electrodes are connected and matched with the electric stimulator for use, and the electrodes are attached to the skin;
the percutaneous electric stimulation electrode plate is used as follows:
(1) the electric stimulator sequentially and respectively outputs short-time stimulation equal to or more than 1 second to two electrodes, and the two corresponding electrodes form a group to stimulate the skin;
(2) when each group of electrodes stimulates the skin, the resistance-type film pressure sensor measures the muscle contraction strength at the stimulation part and transmits signals to the electric stimulator; selecting the electrode group with the maximum muscle contraction intensity at the stimulation position by the electric stimulator, and outputting long-term stimulation to the electrode group;
(3) and (3) when the electrical stimulator outputs long-term stimulation, measuring the muscle contraction intensity at the stimulation part by the resistance-type film pressure sensor, stopping the long-term stimulation if the measured muscle contraction intensity at the stimulation part is slightly lower than the muscle contraction intensity at the stimulation part during short-term stimulation, re-entering short-term stimulation, and circularly repeating the steps (1), (2) and (3).
Further, the plurality of electrodes are 5 electrodes, namely electrodes 1, 2A, 2B, 2C and 2D, the electrodes 2A, 2B, 2C and 2D are distributed around the electrode 1 at equal angles, and the electrodes 1 and 2A, the electrodes 1 and 2B, the electrodes 1 and 2C and the electrodes 1 and 2D are selected to respectively form an electrode group;
the percutaneous electric stimulation electrode plate has the working process as follows:
(1) sequentially selecting electrode groups 1 and 2A respectively by the electric stimulator to output T12aDuration, electrode set 1 and 2B output T12bDuration, electrode set 1 and 2C output T12cDuration, electrode set 1 and 2D output T12dLong short-time stimulation of duration, T12a=T12b=T12c=T12d= τ, wherein τ is ≧ 1 second;
simultaneously, measuring T by the resistive film pressure sensor12a、T12b、T12c、T12dCorresponding pressure signal P at time t12a（t）、P12b（t）、P12c（t）、P12d(T) and transmitting to the electrostimulator and calculating T from the electrostimulator12a、T12b、T12c、T12dCorresponding to the mean value P of the pressure signal in time12a、P12b、P12c、P12dThe maximum value is obtained by comparison, that is, the comparisonThe electrode group with the maximum muscle contraction strength at the stimulation position;
(1) after the electrode group with the maximum muscle contraction strength at the stimulation position is obtained through comparison, if the electrode group is the electrode group 1 and the electrode group 2C, the average value of the corresponding pressure signals is P12cThe output of T 'to the electrode groups 1 and 2C is selected by the electrostimulator'12cDuration n1Long-term stimulation of tau, where n1Is a positive integer, and the mean value P 'per time τ is measured simultaneously'12cAnd recording its minimum value P'12c-minIf P'12c-min<η*P12cStopping long-time stimulation, re-entering short-time stimulation, and repeating the processes of (1), (2) and (3), wherein n1≥1，η∈[0.7,0.9]。
According to the method, the short-time stimulation is firstly output by the electric stimulator, the electrode group with the maximum muscle contraction strength is found out through the resistance type film pressure sensor, and then the long-time stimulation under the normal condition is output to the electrode group, so that the stimulation effect is ensured. Meanwhile, the electric stimulator is matched with the resistance-type film pressure sensor to judge whether the muscle contraction strength is weakened during long-term stimulation, if the muscle contraction strength is weakened, the short-term stimulation is carried out again, the electrode group with the maximum muscle contraction strength is found out for long-term stimulation, the effect of optimizing the stimulation effect is achieved, and the muscle contraction strength at the stimulation position is guaranteed to be maximum.
Compared with the method that the electrode 1 and the electrodes 2A, 2B, 2C and 2D simultaneously output stimulation signals, the method has the advantages of controllable stimulation area selection and minimized stimulation current, and can stimulate more safely.
As another comparison, if the electrodes 2A, 2B, 2C, 2D are connected in short circuit, the stimulation current will flow through the region of minimum impedance, the stimulation region cannot be controlled, and the state of maximum muscle contraction intensity at the stimulation site can be achieved only by increasing the stimulation current intensity.
Drawings
FIG. 1 is a schematic diagram of electrode sheet layout and wiring;
FIG. 2 is a schematic diagram of the connection of an electrode pad and an electrical stimulator;
FIG. 3 is a timing diagram of the output electrode combination based on pressure signal feedback.
Detailed Description
The following examples are presented to illustrate the technical solutions of the present application and should not be construed as limiting the scope of the present application. Any modifications, equivalents, improvements, etc. made within the principles of the present application are intended to be included within the scope of the present application.
A stimulation area adjustable percutaneous electric stimulation electrode plate based on pressure signal feedback is shown in figures 1 and 2, and comprises a resistance type film pressure sensor 3, an electrode 1, electrodes 2A, 2B, 2C and 2D and corresponding connecting wires f, g, C, B, D, e and a, wherein the resistance type film pressure sensor 3, the electrodes 1, 2A, 2B, 2C and 2D are connected with an electric stimulator 4 through the connecting wires a to g.
The electrodes 1, 2A, 2B, 2C and 2D are all located on the surface of the resistive thin film pressure sensor 3 and are used by the electrodes 1, 2A, 2B, 2C and 2D contacting the skin. The electrode 1 can be circular or in other shapes at the middle of the electrodes 2A, 2B, 2C, 2D, the electrodes 2A, 2B, 2C, 2D surround the outside of the electrode 1 and are distributed at equal angles, and the electrode 1 and the electrodes 2A, 2B, 2C, 2D respectively have certain gaps, namely, are not connected in a short circuit.
The electrodes 1 and 2A, the electrodes 1 and 2B, the electrodes 1 and 2C, and the electrodes 1 and 2D respectively form electrode groups, and a stimulation signal is output to one of the electrode groups by the electrical stimulator 4 at a time.
With reference to fig. 3, the specific stimulation process is as follows:
(1) the electrical stimulator 4 respectively selects the electrode groups 1 and 2A to output T in turn12aDuration, electrode set 1 and 2B output T12bDuration, electrode set 1 and 2C output T12cDuration, electrode set 1 and 2D output T12dLong short-time stimulation of duration, T12a=T12b=T12c=T12dAnd (3) = tau, so as to achieve the purpose of selecting different stimulation areas in the electrode slice, wherein tau is more than or equal to 1 second.
(2) In the case of short-term stimulation, T is measured12a、T12b、T12c、T12dCorresponding pressure signal P at time t12a（t）、P12b（t）、P12c（t）、P12d(T) and calculating T12a、T12b、T12c、T12dCorresponding to the mean value P of the pressure signal in time12a、P12b、P12c、P12dThe maximum value of the muscle contraction intensity is obtained through comparison, namely the electrode group with the maximum muscle contraction intensity at the stimulation position is obtained through comparison.
(3) After the electrode group with the maximum muscle contraction strength at the stimulation position is obtained through comparison, if the electrode group is the electrode group 1 and the electrode group 2C, the average value of the corresponding pressure signals is P12cThe electrostimulator 4 selectively outputs T 'to the electrode groups 1 and 2C'12cDuration n1Long-term stimulation of tau, where n1Is a positive integer, and the mean value P 'per time τ is measured simultaneously'12cAnd recording its minimum value P'12c-minIf P'12c-min<η*P12cStopping long-time stimulation, re-entering short-time stimulation, and repeating the processes of (1), (2) and (3), wherein n1≥1，η∈[0.7,0.9]。
In the stimulation process, the transcutaneous electrical pulse stimulation signals used for the short-term stimulation and the long-term stimulation are bipolar pulse signals, and are not limited to rectangular pulse signals or sinusoidal signals.
The surfaces of the electrodes 1, 2A, 2B, 2C and 2D can be contacted with the skin by using skin-friendly conductive materials such as hydrogel, and the bottoms of the electrodes can be pressed by using conductive materials such as a graphite layer and the like and connecting wires thereof. The area of the resistive film pressure sensor 3 except the electrodes is covered with foam rubber.
The advantage of this application is, through above-mentioned amazing process, through selecting different electrode group and selecting different amazing region promptly, utilize resistance-type film pressure sensor 3 to carry out pressure signal feedback simultaneously, learn amazing effect to detect feedback pressure signal by electro stimulator 4 is continuous, reach the effect of optimizing amazing effect, make amazing department muscle shrink intensity the biggest.

Claims (2)

1. The utility model provides a stimulation regional adjustable percutaneous electrostimulation electrode piece based on pressure signal feedback which characterized in that: the sensor comprises a resistance-type film pressure sensor and a plurality of electrodes positioned on the surface of the resistance-type film pressure sensor, wherein the number of the electrodes is at least 3; the resistance-type film pressure sensor and the electrodes are connected and matched with the electric stimulator for use, and the electrodes are attached to the skin;
the percutaneous electric stimulation electrode plate is used as follows:
the electric stimulator sequentially and respectively outputs short-time stimulation equal to or more than 1 second to two electrodes, and the two corresponding electrodes form a group to stimulate the skin;
when each group of electrodes stimulates the skin, the resistance-type film pressure sensor measures the muscle contraction strength at the stimulation part and transmits signals to the electric stimulator; selecting the electrode group with the maximum muscle contraction intensity at the stimulation position by the electric stimulator, and outputting long-term stimulation to the electrode group;
when the electrical stimulator outputs long-term stimulation, the muscle contraction intensity of the stimulation part is measured by the resistance-type film pressure sensor, if the muscle contraction intensity of the stimulation part is measured to be slightly lower than the muscle contraction intensity of the stimulation part during short-term stimulation, the long-term stimulation is stopped, the short-term stimulation is started again, and the steps (1), (2) and (3) are repeated circularly.
2. The transdermal electrical stimulation electrode pad with the adjustable stimulation area based on the pressure signal feedback as claimed in claim 1, wherein: the plurality of electrodes are 5 electrodes, namely electrodes 1, 2A, 2B, 2C and 2D, the electrodes 2A, 2B, 2C and 2D are distributed around the electrode 1 at equal angles, and the electrodes 1 and 2A, the electrodes 1 and 2B, the electrodes 1 and 2C and the electrodes 1 and 2D are selected to respectively form an electrode group;
the percutaneous electric stimulation electrode plate has the working process as follows:
(1) sequentially selecting electrode groups 1 and 2A respectively by the electric stimulator to output T12aDuration, electrode set 1 and 2B output T12bDuration, electrode set 1 and 2C output T12cDuration, electrode set 1 and 2D output T12dLong short-time stimulation of duration, T12a=T12b=T12c=T12d= τ, wherein τ is ≧ 1 second;
at the same time, the pressure is measured by the resistance type film pressure sensorQuantity T12a、T12b、T12c、T12dCorresponding pressure signal P at time t12a（t）、P12b（t）、P12c（t）、P12d(T) and transmitting to the electrostimulator and calculating T from the electrostimulator12a、T12b、T12c、T12dCorresponding to the mean value P of the pressure signal in time12a、P12b、P12c、P12dComparing to obtain the maximum value, namely comparing to obtain the electrode group with the maximum muscle contraction strength at the stimulation position;
(2) after the electrode group with the maximum muscle contraction strength at the stimulation position is obtained through comparison, if the electrode group is the electrode group 1 and the electrode group 2C, the average value of the corresponding pressure signals is P12cThe output of T 'to the electrode groups 1 and 2C is selected by the electrostimulator'12cDuration n1Long-term stimulation of tau, where n1Is a positive integer, and the mean value P 'per time τ is measured simultaneously'12cAnd recording its minimum value P'12c-minIf P'12c-min<η*P12cStopping long-time stimulation, re-entering short-time stimulation, and repeating the processes of (1), (2) and (3), wherein n1≥1，η∈[0.7,0.9]。
CN202111631232.3A 2021-12-29 2021-12-29 Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback Pending CN114146306A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111631232.3A CN114146306A (en) 2021-12-29 2021-12-29 Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111631232.3A CN114146306A (en) 2021-12-29 2021-12-29 Stimulation area adjustable percutaneous electrical stimulation electrode slice based on pressure signal feedback

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Publication Number Publication Date
CN114146306A true CN114146306A (en) 2022-03-08

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