CN115425928A - Control circuit for applying alternating electric field to human body and instrument device - Google Patents
Control circuit for applying alternating electric field to human body and instrument device Download PDFInfo
- Publication number
- CN115425928A CN115425928A CN202211373025.7A CN202211373025A CN115425928A CN 115425928 A CN115425928 A CN 115425928A CN 202211373025 A CN202211373025 A CN 202211373025A CN 115425928 A CN115425928 A CN 115425928A
- Authority
- CN
- China
- Prior art keywords
- filtering unit
- band
- output end
- input end
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/02—Details
- A61N1/08—Arrangements or circuits for monitoring, protecting, controlling or indicating
Landscapes
- 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)
- Heart & Thoracic Surgery (AREA)
- Neurology (AREA)
- Power Engineering (AREA)
- Theoretical Computer Science (AREA)
- Filters And Equalizers (AREA)
Abstract
The invention provides a control circuit and an apparatus device for applying an alternating electric field to a human body. The control circuit for applying an alternating electric field to a human body includes: the device comprises a transformer, a low-pass filtering unit, a first band-resistance filtering unit and a high-frequency filtering unit; the first output end and the second output end of the input end of the transformer are used for inputting alternating-current rectangular wave signals and are correspondingly connected with the first input end and the second input end of the low-pass filtering unit respectively; a first input end and a second input end of the first band-resistance filtering unit are respectively and correspondingly connected with a first output end and a second output end of the low-pass filtering unit, and a first output end and a second output end are respectively and correspondingly connected with a first input end and a second input end of the high-frequency filtering unit; the invention adopts multi-stage filtering combination, is matched with the rectangular wave output by the preceding stage, and obtains pure sine wave signals by changing the duty ratio and the voltage amplitude of the signal of the rectangular wave and filtering out higher harmonics.
Description
Technical Field
The invention relates to the technical field of signal control, in particular to a control circuit and an instrument device for applying an alternating electric field to a human body.
Background
Malignant tumors are serious diseases threatening human health seriously, and are the most serious public health challenges facing the world at present. The tumor electric field therapeutic apparatus is controlled by the control device to generate sine wave pulse electric field to interfere cell mitosis and induce cancer cells to die in the process of mitosis, and can be used for treating cancer. Us patent publication No. CN101553180B (classification No. a61B 18) discloses a device for destroying cancerous cells by introducing an electrode or electrodes into a target tissue region and applying an alternating electric field to the target tissue region to ablate the cancerous cells.
However, the alternating electric field in the above-mentioned device usually adopts a dedicated chip to generate a sine wave signal to obtain the alternating electric field, and the power and frequency are limited, which cannot meet the requirements of practical application. The sine wave signal can be obtained by filtering the rectangular wave signal, but the output sine wave signal is impure and has poor quality, which seriously influences the treatment effect of the electric field therapeutic apparatus.
Disclosure of Invention
The embodiment of the invention provides a control circuit for applying an alternating electric field to a human body and an instrument device, and aims to solve the problem that a high-voltage, high-frequency and high-quality sine wave signal cannot be obtained in the prior art.
In a first aspect, an embodiment of the present invention provides a control circuit for applying an alternating electric field to a human body, including: the device comprises a transformer, a low-pass filtering unit, a first band-resistance filtering unit and a high-frequency filtering unit;
the input end of the transformer is used for inputting alternating-current rectangular wave signals, and a first output end and a second output end of the transformer are respectively and correspondingly connected with a first input end and a second input end of the low-pass filtering unit;
the first input end and the second input end of the first band-resistance filtering unit are correspondingly connected with the first output end and the second output end of the low-pass filtering unit respectively, and the first output end and the second output end of the first band-resistance filtering unit are correspondingly connected with the first input end and the second input end of the high-frequency filtering unit respectively;
the first output end and the second output end of the high-frequency filtering unit are used for outputting sine wave signals;
wherein, the duty ratio of the alternating rectangular wave signal is less than 1.
In one possible embodiment, the transformer is a leakage inductance transformer; the low-pass filtering unit includes: a first capacitor;
the first end of the first capacitor is respectively connected with the first input end and the first output end of the low-pass filtering unit, and the second end of the first capacitor is respectively connected with the second input end and the second output end of the low-pass filtering unit;
the first capacitor and the leakage inductance of the transformer form a filter circuit for low-pass filtering.
In one possible implementation, the low-pass filtering unit includes: the second capacitor, the first inductor and the second inductor;
the first end of the first inductor is connected with the first input end of the low-pass filtering unit, and the second end of the first inductor is respectively connected with the first end of the second capacitor and the first output end of the low-pass filtering unit;
the first end of the second inductor is connected with the second input end of the low-pass filtering unit, and the second end of the second inductor is respectively connected with the second end of the second capacitor and the second output end of the low-pass filtering unit.
In one possible implementation, the circuit further includes: at least one second band-stop filtering unit;
each second band elimination filter unit is connected in series, and
the first input end and the second input end of a first one of the at least one second band-stop filtering unit are correspondingly connected with the first output end and the second output end of the first band-stop filtering unit respectively;
the first output end and the second output end of the last second band-stop filtering unit in the at least one second band-stop filtering unit are correspondingly connected with the first input end and the second input end of the high-frequency filtering unit respectively;
the center frequency of the first band-stop filtering unit is different from that of each second band-stop filtering unit, and the center frequency of each second band-stop filtering unit is also different.
In one possible embodiment, the number of the second band-stop filtering units is one;
the cut-off frequency of the low-pass filter unit is in a value range of
~
The center frequency of the first band-stop filter unit is
The value range of the center of the second band elimination filter unit is
~
；
Wherein, the first and the second end of the pipe are connected with each other,
the frequency of the ac rectangular wave signal.
In a possible implementation, the first bandstop filtering unit comprises: a third capacitor, a fourth capacitor, a third inductor and a fourth inductor;
the first end of the third inductor is respectively connected with the first end of the third capacitor and the first input end of the first band-resistance filtering unit, and the second end of the third inductor is respectively connected with the second end of the third capacitor and the first output end of the first band-resistance filtering unit;
the first end of the fourth inductor is connected with the first end of the fourth capacitor and the second input end of the first band-resistance filter unit respectively, and the second end of the fourth inductor is connected with the second end of the fourth capacitor and the second output end of the first band-resistance filter unit respectively.
In one possible embodiment, the high frequency filtering unit includes: a fifth capacitor;
the first end of the fifth capacitor is respectively connected with the first input end and the first output end of the high-frequency filtering unit, and the second end of the fifth capacitor is respectively connected with the second input end and the second output end of the high-frequency filtering unit.
In one possible embodiment, the duty cycle of the ac rectangular wave signal is 0.64.
In one possible embodiment, the frequency of the alternating rectangular wave signal is 200kHz.
In a second aspect, an embodiment of the present invention provides an apparatus, comprising a plurality of electric field patches and a control circuit for applying an alternating electric field to a human body, the control circuit being provided in the first aspect of the embodiment of the present invention;
the control circuit for applying the alternating electric field to the human body is electrically connected with each electric field patch.
The embodiment of the invention provides a control circuit and an instrument device for applying an alternating electric field to a human body. The control circuit for applying an alternating electric field to a human body includes: the device comprises a transformer, a low-pass filtering unit, a first band-resistance filtering unit and a high-frequency filtering unit; the input end of the transformer is used for inputting alternating-current rectangular wave signals, and a first output end and a second output end of the transformer are respectively and correspondingly connected with a first input end and a second input end of the low-pass filtering unit; the first input end and the second input end of the first band-resistance filtering unit are correspondingly connected with the first output end and the second output end of the low-pass filtering unit respectively, and the first output end and the second output end of the first band-resistance filtering unit are correspondingly connected with the first input end and the second input end of the high-frequency filtering unit respectively; the first output end and the second output end of the high-frequency filtering unit are used for outputting sine wave signals; in the embodiment of the invention, a multistage filtering combination is adopted to be matched with the rectangular wave output by the preceding stage, and the tumor treatment electric field signal is corrected by changing the duty ratio and the voltage amplitude of the signal of the rectangular wave and filtering out higher harmonics to obtain a standard high-frequency and high-voltage sine wave signal.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic circuit structure diagram of a control circuit for applying an alternating electric field to a human body according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a low-pass filtering unit according to an embodiment of the present invention;
FIG. 3 is an equivalent circuit diagram of the circuit shown in FIG. 2;
fig. 4 is a schematic circuit diagram of another low-pass filter unit according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a circuit configuration of another control circuit for applying an alternating electric field to a human body according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of another control circuit for applying an alternating electric field to a human body according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are partial embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present disclosure without any creative effort shall fall within the protection scope of the present disclosure.
The terms "include" and any other variations in the description and claims of this document and the above-described figures, mean "include but not limited to", and are intended to cover non-exclusive inclusions and not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc. are used to distinguish between different objects and are not used to describe a particular order.
The following detailed description of implementations of the invention refers to the accompanying drawings in which:
fig. 1 is a schematic circuit structure diagram of a control circuit for applying an alternating electric field to a human body according to an embodiment of the present invention. Referring to fig. 1, the control circuit for applying an alternating electric field to a human body includes: the transformer T1, the low-pass filtering unit 11, the first band-resistance filtering unit 12 and the high-frequency filtering unit 13;
the input end of the transformer T1 is used for inputting alternating-current rectangular wave signals, and a first output end and a second output end of the transformer T1 are respectively and correspondingly connected with a first input end and a second input end of the low-pass filtering unit 11;
a first input end and a second input end of the first band-stop filtering unit 12 are respectively and correspondingly connected with a first output end and a second output end of the low-pass filtering unit 11, and a first output end and a second output end of the first band-stop filtering unit 12 are respectively and correspondingly connected with a first input end and a second input end of the high-frequency filtering unit 13;
a first output terminal and a second output terminal of the high-frequency filtering unit 13 are used for outputting sine wave signals;
wherein, the duty ratio of the alternating rectangular wave signal is less than 1.
In the embodiment of the invention, the voltage is boosted through the transformer T1 to obtain the alternating-current rectangular wave signal with high amplitude, then the high-frequency component in the alternating-current rectangular wave signal is filtered through the low-pass filtering unit 11, for example, 3-order harmonic component is further filtered through the first band-stop filtering unit 12, and finally, higher-frequency harmonic wave, for example, harmonic wave of more than 5-order is further filtered through the high-frequency filtering unit 13. Each filtering unit is mutually matched and mutually influenced, and is simultaneously mutually matched with the rectangular wave output by the preceding stage, and the tumor treatment electric field signal is corrected by changing the duty ratio and the voltage amplitude of the signal of the rectangular wave and filtering out higher harmonics to obtain a pure high-frequency and high-voltage sine wave.
In one possible embodiment, the transformer T1 may be a leakage inductance transformer T1; referring to fig. 2, the low pass filtering unit 11 may include: a first capacitor C1;
a first end of the first capacitor C1 is connected to the first input end and the first output end of the low-pass filtering unit 11, respectively, and a second end of the first capacitor C1 is connected to the second input end and the second output end of the low-pass filtering unit 11, respectively;
the first capacitor C1 and the leakage inductance of the transformer T1 form a filter circuit for low-pass filtering.
In the embodiment of the invention, a low-pass filter circuit can be formed by the leakage inductance of the transformer T1 and the first capacitor C1, referring to fig. 3, the leakage inductance of the transformer T1 is equivalent to two inductors Ls1 and Ls2, and forms a low-pass filter circuit with the first capacitor C1 for filtering out high-frequency components, no inductor is required to be independently arranged, the leakage inductance of the transformer T1 is skillfully used, and low-pass filtering can be realized by only arranging one capacitor, so that the circuit structure is simplified.
In a possible embodiment, referring to fig. 4, the low-pass filtering unit 11 may include: a second capacitor C2, a first inductor L1 and a second inductor L2;
a first end of the first inductor L1 is connected to a first input end of the low-pass filtering unit 11, and a second end of the first inductor L1 is connected to a first end of the second capacitor C2 and a first output end of the low-pass filtering unit 11, respectively;
a first end of the second inductor L2 is connected to the second input end of the low-pass filtering unit 11, and a second end of the second inductor L2 is connected to the second end of the second capacitor C2 and the second output end of the low-pass filtering unit 11, respectively.
Furthermore, in the embodiment of the present invention, the first inductor L1, the second inductor L2, and the second capacitor C2 may be directly disposed to form the low-pass filtering unit 11 without using the leakage inductance of the transformer T1. The first inductor L1 and the second inductor L2 are respectively positioned at two sides of the second capacitor C2, so that the sine wave signal has better balanced differential performance.
The transformer T1 may be a leakage inductance transformer or a non-leakage inductance transformer. When the transformer T1 is a leakage inductance transformer, the leakage inductance of the transformer T1, the first inductor L1, the second inductor L2, and the second capacitor C2 perform low-pass filtering together, and the proper first inductor L1 and second inductor L2 can be selected according to the leakage inductance of the transformer T1.
In one possible embodiment, referring to fig. 5, the circuit may further comprise: at least one second band-stop filtering unit 14;
the respective second band elimination filter units 14 are connected in series, and
a first input end and a second input end of a first one 14 of the at least one second band-stop filtering unit 14 are correspondingly connected with a first output end and a second output end of the first band-stop filtering unit 12, respectively;
the first output end and the second output end of the last second band-stop filtering unit 14 in the at least one second band-stop filtering unit 14 are correspondingly connected with the first input end and the second input end of the high-frequency filtering unit 13 respectively;
the center frequency of the first band-stop filtering unit 12 is different from the center frequency of each second band-stop filtering unit 14, and the center frequency of each second band-stop filtering unit 14 is also different.
In the embodiment of the present invention, the second band-elimination filtering unit 14 can only filter out a part of harmonic components, and the sine wave signal is not pure enough. Therefore, at least one stage of the second band-stop filtering unit 14 can be disposed after the first band-stop filter, and is used for filtering more harmonic components, so as to obtain a purer sine wave signal. The center frequencies of the band-elimination filter units (the first band-elimination filter unit 12 and the second band-elimination filter unit 14) are different, and are used for filtering different harmonic components.
For example, the first band-stop filtering unit 12 filters 3 th harmonic component in the ac rectangular wave signal, the first second band-stop filtering unit 14 filters 5 th harmonic component in the ac rectangular wave signal, and the second band-stop filtering unit filters 7 th harmonic component in the ac rectangular wave signal, so as to obtain a purer sine wave signal.
The number of the second band-stop filtering units 14 may be set according to practical application requirements, and is not limited herein.
In a possible embodiment, the number of second band-stop filtering units 14 is one;
the cut-off frequency of the low-pass filter unit 11 may have a range of values
~
The center frequency of the first band-stop filter unit 12 may be
The center of the second band-stop filter unit 14 may have a value range of
~
；
Wherein the content of the first and second substances,
the frequency of the ac rectangular wave signal.
The cut-off frequency of the low-pass filtering unit 11 in the embodiment of the present invention may be set to
~
Most of the higher harmonics are filtered out. The first band elimination filtering unit 12 filters 3 th harmonic waves and 5 th harmonic waves, the second band elimination filtering unit 14 filters 5 th harmonic waves and 7 th harmonic waves, and the high-frequency filtering unit 13 is matched to filter higher harmonic waves, so that a pure sine wave signal can be obtained.
In a possible embodiment, referring to fig. 6, the first band-stop filtering unit 12 may include: a third capacitor C3, a fourth capacitor C4, a third inductor L3 and a fourth inductor L4;
a first end of the third inductor L3 is connected to a first end of the third capacitor C3 and a first input end of the first band-resistance filter unit 12, respectively, and a second end of the third inductor L3 is connected to a second end of the third capacitor C3 and a first output end of the first band-resistance filter unit 12, respectively;
a first end of the fourth inductor L4 is connected to a first end of the fourth capacitor C4 and a second input end of the first band-resistance filter unit 12, respectively, and a second end of the fourth inductor L4 is connected to a second end of the fourth capacitor C4 and a second output end of the first band-resistance filter unit 12, respectively.
The first band-resistance filter unit 12 adopts a capacitor-inductor parallel filter structure, and in order to enable the sine wave signals to have better balanced differential performance, the first band-resistance filter unit 12 is divided into two groups which are respectively connected in series with two paths.
Further, the circuit structure of the second band-stop filter may be the same as that of the first band-stop filter, and specifically refer to fig. 6, which is not described herein again.
In a possible embodiment, the high frequency filtering unit 13 may include: a fifth capacitor C5;
a first end of the fifth capacitor C5 is connected to the first input end and the first output end of the high frequency filtering unit 13, respectively, and a second end of the fifth capacitor C5 is connected to the second input end and the second output end of the high frequency filtering unit 13, respectively.
In the embodiment of the invention, only one capacitor can be adopted for high-frequency filtering to filter out high-frequency components.
In one possible embodiment, the duty cycle of the ac rectangular wave signal may be 0.64.
In one possible embodiment, the frequency of the alternating rectangular wave signal may be 200kHz.
Corresponding to the control circuit for applying the alternating electric field to the human body, the embodiment of the invention also provides an instrument device, which comprises a plurality of electric field patches and the control circuit for applying the alternating electric field to the human body, which is provided by the embodiment; and the control circuit for applying the alternating electric field to the human body is electrically connected with each electric field patch.
The apparatus acts on the lesion area through an alternating current electric field to inhibit the growth of the tumor. The control circuit for applying an alternating electric field to a human body has the advantages, which are not described in detail herein
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control circuit for applying an alternating electric field to a human body, comprising: the device comprises a transformer, a low-pass filtering unit, a first band-resistance filtering unit and a high-frequency filtering unit;
the input end of the transformer is used for inputting alternating-current rectangular wave signals, and a first output end and a second output end of the transformer are respectively and correspondingly connected with a first input end and a second input end of the low-pass filtering unit;
a first input end and a second input end of the first band-resistance filtering unit are correspondingly connected with a first output end and a second output end of the low-pass filtering unit respectively, and a first output end and a second output end of the first band-resistance filtering unit are correspondingly connected with a first input end and a second input end of the high-frequency filtering unit respectively;
the first output end and the second output end of the high-frequency filtering unit are used for outputting sine wave signals;
wherein the duty ratio of the alternating rectangular wave signal is less than 1.
2. The control circuit for applying an alternating electric field to a human body according to claim 1, wherein said transformer is a leakage inductance transformer; the low-pass filtering unit includes: a first capacitor;
a first end of the first capacitor is connected with a first input end and a first output end of the low-pass filtering unit respectively, and a second end of the first capacitor is connected with a second input end and a second output end of the low-pass filtering unit respectively;
the first capacitor and the leakage inductance of the transformer form a filter circuit for low-pass filtering.
3. The control circuit for applying an alternating electric field to a human body according to claim 1, wherein said low-pass filtering unit comprises: the second capacitor, the first inductor and the second inductor;
a first end of the first inductor is connected with a first input end of the low-pass filtering unit, and a second end of the first inductor is respectively connected with a first end of the second capacitor and a first output end of the low-pass filtering unit;
the first end of the second inductor is connected with the second input end of the low-pass filtering unit, and the second end of the second inductor is respectively connected with the second end of the second capacitor and the second output end of the low-pass filtering unit.
4. The control circuit for applying an alternating electric field to a human body according to claim 1, wherein said circuit further comprises: at least one second band-stop filtering unit;
each second band elimination filter unit is connected in series, and
a first input end and a second input end of a first one of the at least one second band-stop filtering unit are correspondingly connected with a first output end and a second output end of the first band-stop filtering unit respectively;
the first output end and the second output end of the last second band-stop filtering unit in the at least one second band-stop filtering unit are correspondingly connected with the first input end and the second input end of the high-frequency filtering unit respectively;
the center frequency of the first band-stop filtering unit is different from that of each second band-stop filtering unit, and the center frequency of each second band-stop filtering unit is also different.
5. The control circuit for applying an alternating electric field to a human body according to claim 4, wherein the number of the second band-stop filter units is one;
the range of the cut-off frequency of the low-pass filtering unit is
~
The center frequency of the first band-stop filter unit is
The value range of the center of the second band elimination filter unit is
~
；
Wherein the content of the first and second substances,
is the frequency of the alternating rectangular wave signal.
6. The control circuit for applying an alternating electric field to a human body according to claim 4, wherein said first band-stop filtering unit comprises: a third capacitor, a fourth capacitor, a third inductor and a fourth inductor;
a first end of the third inductor is connected with a first end of the third capacitor and a first input end of the first band-resistance filter unit respectively, and a second end of the third inductor is connected with a second end of the third capacitor and a first output end of the first band-resistance filter unit respectively;
the first end of the fourth inductor is connected with the first end of the fourth capacitor and the second input end of the first band-resistance filtering unit respectively, and the second end of the fourth inductor is connected with the second end of the fourth capacitor and the second output end of the first band-resistance filtering unit respectively.
7. The control circuit for applying an alternating electric field to a human body according to any one of claims 1 to 6, wherein said high frequency filtering unit comprises: a fifth capacitor;
and a first end of the fifth capacitor is respectively connected with a first input end and a first output end of the high-frequency filtering unit, and a second end of the fifth capacitor is respectively connected with a second input end and a second output end of the high-frequency filtering unit.
8. A control circuit for applying an alternating electric field to a human body according to any one of claims 1 to 6, wherein a duty ratio of the alternating rectangular wave signal is 0.64.
9. A control circuit for applying an alternating electric field to a human body as claimed in any one of claims 1 to 6, wherein said alternating rectangular wave signal has a frequency of 200kHz.
10. An appliance comprising a plurality of electric field patches and a control circuit according to any of claims 1 to 9 for applying an alternating electric field to a body;
and the control circuit for applying the alternating electric field by the human body is electrically connected with each electric field patch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211373025.7A CN115425928A (en) | 2022-11-04 | 2022-11-04 | Control circuit for applying alternating electric field to human body and instrument device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211373025.7A CN115425928A (en) | 2022-11-04 | 2022-11-04 | Control circuit for applying alternating electric field to human body and instrument device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115425928A true CN115425928A (en) | 2022-12-02 |
Family
ID=84208160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211373025.7A Pending CN115425928A (en) | 2022-11-04 | 2022-11-04 | Control circuit for applying alternating electric field to human body and instrument device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115425928A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116140A (en) * | 1998-10-05 | 2000-04-21 | Toshiba Corp | High frequency power supply and ultrasonic wave generator |
| CN114614798A (en) * | 2022-05-11 | 2022-06-10 | 河北普尼医疗科技有限公司 | Control circuit of electric field therapeutic apparatus for interfering cell division and electric field therapeutic apparatus |
| CN114901347A (en) * | 2019-12-31 | 2022-08-12 | 诺沃库勒有限责任公司 | High voltage, high efficiency sine wave generator to prevent spikes during amplitude adjustment and channel switching |
-
2022
- 2022-11-04 CN CN202211373025.7A patent/CN115425928A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000116140A (en) * | 1998-10-05 | 2000-04-21 | Toshiba Corp | High frequency power supply and ultrasonic wave generator |
| CN114901347A (en) * | 2019-12-31 | 2022-08-12 | 诺沃库勒有限责任公司 | High voltage, high efficiency sine wave generator to prevent spikes during amplitude adjustment and channel switching |
| CN114614798A (en) * | 2022-05-11 | 2022-06-10 | 河北普尼医疗科技有限公司 | Control circuit of electric field therapeutic apparatus for interfering cell division and electric field therapeutic apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2464950C2 (en) | Circuit for radio-frequency devices, applied for live tissues, and device containing said circuit | |
| CN105247784B (en) | High-frequency model component | |
| JP2019507988A (en) | Use of filter parts and filter parts | |
| SG171466A1 (en) | Plasma processing device | |
| JPWO2019212799A5 (en) | ||
| CN109660118B (en) | Design method of controllable frequency band-suppression EMI filter of rail transit locomotive | |
| CN115425928A (en) | Control circuit for applying alternating electric field to human body and instrument device | |
| CN205433883U (en) | Controlgear and electromagnetism sword surgical system | |
| CN208522720U (en) | A kind of high-power shortwave duplexer of five ranks | |
| CN202409856U (en) | Radio frequency generator of PWM (pulse-width modulation) power modulation | |
| US11564339B2 (en) | Electrical device comprising filter and feedthrough capacitor | |
| CN110729978A (en) | High-frequency common mode rejection circuit and electrical apparatus | |
| CN206302392U (en) | Frequency divider and frequency generator | |
| CN209075853U (en) | A kind of ultrashort wave therapeutic apparatus | |
| CN102500059A (en) | Multi-band music electrotherapy instrument | |
| CN213553352U (en) | Household intermediate frequency interference physiotherapy instrument circuit | |
| TWI300288B (en) | A vacuum chamber of rf matching network and method for equipment the same | |
| KR20220135780A (en) | Method and apparatus for performing wireless power reception, wireless communication and electric stimulation | |
| CN211245255U (en) | Ultrasonic pulse conductance therapeutic instrument with EMC filtering function | |
| CN219247806U (en) | Frequency conversion circuit | |
| CN104935155B (en) | A kind of method for designing for DC D/C power Ripple Suppressions | |
| CN2605873Y (en) | Wide-band therapeutic equipments | |
| CN108852504A (en) | Radio frequency electrode, radio frequency treatment equipment and output transmission line thereof | |
| CN216564932U (en) | Filtering structure of controller | |
| CN2211673Y (en) | Random signal generator of frequency spectrum instrument for therapy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |