CN212327190U - High-frequency electrical stimulation device for peripheral nerve conduction block - Google Patents
High-frequency electrical stimulation device for peripheral nerve conduction block Download PDFInfo
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- CN212327190U CN212327190U CN202021614182.9U CN202021614182U CN212327190U CN 212327190 U CN212327190 U CN 212327190U CN 202021614182 U CN202021614182 U CN 202021614182U CN 212327190 U CN212327190 U CN 212327190U
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Abstract
A high-frequency electrical stimulation device for peripheral nerve conduction block comprises a main control module and a high-frequency electrical stimulation module; the main control module is connected with the high-frequency electrical stimulation module and comprises a human-computer interaction unit, a microcontroller and a first communication unit; the high-frequency electrical stimulation module comprises a second communication unit, a power supply unit and an electrical stimulation unit; the electrical stimulation unit comprises a multivibrator, a pulse width control circuit, an intensity control circuit, an output driving circuit and a plurality of pulse output channels; the pulse width control circuit is connected with the strength control circuit through the frequency control circuit; the strength control circuit is respectively connected with the output driving circuit and one end of each pulse output channel; the other end of the pulse output channel is connected with one end of an electrode, and the other end of the electrode is connected with a needle point conductive electrode needle; the utility model discloses an utilize the conduction of high frequency resistance disconnected nerve, replaced the use of local anesthesia medicine, have environmental protection safety's characteristics.
Description
Technical Field
The utility model relates to a human articles for daily use especially relate to medical instrument, especially a high frequency electric stimulation device that is used for peripheral nerve conduction to block.
Background
Currently, the nerve block anesthesia method is a commonly used clinical anesthesia method, and along with the multipoint injection of the medicine, the toxicity reaction of the center and the heart and the muscle nerve toxicity of the local anesthesia medicine are caused, so that a method capable of replacing the local anesthesia medicine is urgently needed to be found; researches show that the high-frequency electrical stimulation can replace local anesthetic drugs to block the conduction of nerves, greatly reduce the dosage of the drugs, and has the advantages of quick recovery, environmental protection and safety; high frequency electricity is the current relative to the mains frequency 50Hz alternating current.
At present, the high-frequency electrical stimulation research is still in the beginning stage in China, and the setting and operation of parameters of clinical research related instruments are difficult to meet the actual clinical requirements.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a high-frequency electrical stimulation device for peripheral nerve block, which is used to solve the problems of the prior art that the drug anesthesia mode is adopted to cause the toxic reaction of the center and the heart and the injury is caused by the muscle neurotoxicity of the local anesthetic drug itself.
To achieve the above and other related objects, the present invention provides a high frequency electrical stimulation device for peripheral nerve conduction block, comprising: the device comprises a main control module and a high-frequency electrical stimulation module; the main control module is connected with the high-frequency electrical stimulation module and comprises a human-computer interaction unit, a microcontroller and a first communication unit; the human-computer interaction unit and the first communication unit are both connected with the microcontroller, and the human-computer interaction unit is used for setting and adjusting stimulation parameters; the main control module is used for outputting a control instruction according to the stimulation parameter and sending the control instruction to the high-frequency electrical stimulation module through the first communication unit; the high-frequency electrical stimulation module is used for outputting corresponding stimulation pulses according to the control instruction, and comprises a second communication unit, a power supply unit and an electrical stimulation unit; the electric stimulation unit comprises a multivibrator, a pulse width control circuit, an intensity control circuit, an output driving circuit and a plurality of pulse output channels; the multivibrator is respectively connected with one end of the second communication unit, the pulse width control circuit and the power supply unit; the other end of the second communication unit is connected with the first communication unit; the pulse width control circuit is connected with the intensity control circuit through a frequency control circuit; the intensity control circuit is respectively connected with the output driving circuit and one end of each pulse output channel; the other end of the pulse output channel is connected with one end of an electrode, and the other end of the electrode is connected with a needle point conductive electrode needle.
In an embodiment of the present invention, the strength control circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor, a third capacitor, and an operational amplifier; one end of the first resistor is connected with a first power supply, one end of the second resistor is grounded, and the other end of the first resistor is connected with the other end of the second resistor and is commonly and respectively connected to one end of the fourth resistor, one end of the third capacitor and the non-inverting input end of the operational amplifier; one end of the third resistor is connected with a PWM signal, and the other end of the third resistor is respectively connected with one end of the third resistor and one end of the second capacitor; one end of the fifth resistor is connected with a second power supply, and the other end of the fifth resistor is connected with one end of the first capacitor; the other end of the first capacitor, the other end of the second capacitor and the other end of the third capacitor are all grounded; the inverting input end of the operational amplifier is respectively connected with one end of the sixth resistor and one end of the seventh resistor; the other end of the sixth resistor is grounded; the other end of the seventh resistor is connected with the output end of the operational amplifier, and the output end of the operational amplifier is also connected with the pulse output channels through an eighth resistor and a ninth resistor which are sequentially connected in series; and the connection position of the eighth resistor and the ninth resistor is connected with the pulse width control circuit.
In an embodiment of the present invention, the pulse width control circuit includes a tenth resistor, an eleventh resistor, and a triode; one end of the tenth resistor is connected with one end of the eleventh resistor, and the tenth resistor and the eleventh resistor are connected to the base electrode of the triode in common; the other end of the eleventh resistor and the emitting electrode of the triode are both grounded; and the collector of the triode is connected with the joint of the eighth resistor and the ninth resistor.
In an embodiment of the present invention, the pulse output channels may work independently or may be selected to work in cooperation.
In an embodiment of the present invention, the output frequency range of the pulse output channel is between 2Hz to 20000Hz, the pulse width is between 10 μ s to 500 μ s, the output mode is single-phase or dual-phase waveform, and the output waveform is any one or combination of two or more waveforms: square wave, sine wave, triangular wave.
In an embodiment of the present invention, the main control module further includes: a storage unit; the storage unit is connected with the microcontroller and is used for storing the stimulation parameters and/or preset parameters; the stimulation parameters and the preset parameters comprise any one or more of the following combinations: recipe, channel, amplitude, pulse width, frequency, on-off ratio, time.
In an embodiment of the present invention, the high-frequency electrical stimulation module further includes: a display unit; and the display unit is connected with the electrical stimulation unit and is used for displaying the power supply condition and the working state of the high-frequency electrical stimulation module.
In an embodiment of the present invention, the power supply unit is connected to an external power source.
In an embodiment of the present invention, the first communication unit and the second communication unit are connected in a wireless communication manner.
As mentioned above, the high-frequency electrical stimulation device for peripheral nerve conduction block of the present invention has the following beneficial effects:
compared with the prior art, the high-frequency electrical stimulation device provided by the utility model can cut off the conduction of nerves by using the high-frequency resistor, replaces the use of local anesthesia drugs, and has the characteristics of environmental protection and safety; different prescription parameters can be set in real time through man-machine interaction to control parameters such as pulse frequency, pulse width, channels, amplitude and time, and the prescription parameters can be stored in the main control module so as to be directly called next time, so that the method is fast and convenient.
Drawings
Fig. 1 is a block diagram illustrating the working principle of the high-frequency electrical stimulation device for peripheral nerve block according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of an electrical stimulation unit according to an embodiment of the present invention.
Description of the reference symbols
1-a main control module; 11-a human-computer interaction unit; 12-a microcontroller; 13-a first communication unit; 14-a storage unit; 2-high frequency electrical stimulation module; 21-a second communication unit; 22-a power supply unit; 23-an electrical stimulation unit; 231-multivibrator; 232-pulse width control circuit; 233-intensity control circuit; 234-output driver circuitry; 235-pulse output channel; 236-frequency control circuit; 237-an electrode; 24-display unit.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Compared with the prior art, the high-frequency electrical stimulation device for peripheral nerve conduction block provided by the utility model can cut off the conduction of nerves by utilizing the high-frequency resistor, replace local anesthetic drugs, and has the characteristics of environmental protection and safety; different prescription parameters can be set in real time through man-machine interaction to control parameters such as pulse frequency, pulse width, channels, amplitude and time, and the prescription parameters can be stored in the main control module so as to be directly called next time, so that the method is fast and convenient.
As shown in fig. 1, in one embodiment, the high-frequency electrical stimulation apparatus for peripheral nerve block of the present invention includes a main control module 1 and a high-frequency electrical stimulation module 2.
Specifically, the main control module 1 is connected with the high-frequency electrical stimulation module 2, and the main control module 1 includes a human-computer interaction unit 11, a microcontroller 12 and a first communication unit 13.
The human-computer interaction unit 11 and the first communication unit 13 are both connected with the microcontroller 12, and the human-computer interaction unit 11 is configured to set and adjust stimulation parameters, so that the main control module 1 outputs a control instruction according to the stimulation parameters under the control of the microcontroller 12, and sends the control instruction to the high-frequency electrical stimulation module 2 through the first communication unit 13.
It should be noted that, a user can adjust stimulation parameters of the high-frequency electrical stimulation device for peripheral nerve conduction block at any time through the human-computer interaction unit 11, so that the main control module 1 generates a corresponding control instruction according to the stimulation parameters, and further, the subsequent high-frequency electrical stimulation module 2 generates a corresponding stimulation pulse according to the control instruction to act on a human body, thereby greatly improving the applicability of the high-frequency electrical stimulation device for peripheral nerve conduction block.
In one embodiment, the main control module 1 further includes a storage unit 14; the memory unit 14 is connected to the microcontroller 12 for storing the stimulation parameters and/or the preset parameters.
It should be noted that, the stimulation parameter and the preset parameter include, but are not limited to, any one or a combination of two or more of the following: recipe, channel, amplitude, pulse width, frequency, on-off ratio, time.
It should be noted that, by storing the preset parameters in the storage unit 14 in advance, the selected prescription can be called directly from the storage unit 14 through the selection of the human-computer interaction unit 11 during the operation of the high-frequency electrical stimulation apparatus for peripheral nerve block, so as to generate corresponding stimulation pulses to act on the human body according to the prescription.
The high-frequency electrical stimulation module 2 is configured to output a corresponding stimulation pulse according to the control instruction, and apply the stimulation pulse to a human body through a needle-point conductive electrode needle (a needle-point-shaped conductive electrode needle) to stimulate a nerve of the human body, and the high-frequency electrical stimulation module 2 includes a second communication unit 21, a power supply unit 22, and an electrical stimulation unit 23.
In one embodiment, the high-frequency electrical stimulation module 2 further includes a display unit 24; the display unit 24 is connected with the electrical stimulation unit 23 and is used for displaying the power supply condition and the working state of the high-frequency electrical stimulation module 2.
In one embodiment, the power supply unit 22 is connected to an external power source, and supplies power to the high-frequency electrical stimulation module 2 through the external power source.
Specifically, the electrical stimulation unit 23 includes a multivibrator 231, a pulse width control circuit 232, an intensity control circuit 233, an output driving circuit 234, and a plurality of pulse output channels 235.
The multivibrator 231 is respectively connected to one end of the second communication unit 21, the pulse width control circuit 232, and the power supply unit 22; the other end of the second communication unit 21 is connected with the first communication unit 13; the pulse width control circuit 232 is connected with the intensity control circuit 233 through a frequency control circuit 236; the intensity control circuit 233 is connected to the output driving circuit 234 and one end of each of the pulse output channels 235; the other end of the pulse output channel 235 is connected with one end of an electrode 237, and the other end of the electrode 237 is connected with a needle point conductive electrode needle; in the actual operation process, the needle point conductive electrode needle acts on the nerve of the human body to form a loop so as to realize the regular stimulation of the nerve.
In one embodiment, the first communication unit 13 and the second communication unit 21 are connected in a wireless communication manner.
It should be noted that the communication connection between the main control module 1 and the high-frequency electrical stimulation module 2 is realized through a wireless communication mode, which more meets the clinical, especially the scene needs of the operating room.
In one embodiment, the pulse output channels can work independently or work together at random.
It should be noted that, a user selects a channel on the human-computer interaction unit 11 to implement that a plurality of pulse output channels work independently or arbitrarily select several pulse output channels to work.
Further, the pulse output channels are distinguished by english letters, and every two pulse output channels are a group, and each group of pulse output channels is connected to two electrodes 237 respectively.
In one embodiment, the output frequency range of the pulse output channel is between 2Hz and 20000Hz, the pulse width is between 10 μ s and 500 μ s, the output mode is a single-phase or bi-phase waveform, and the output waveform is any one or a combination of two or more waveforms: square wave, sine wave, triangular wave.
The output waveform of the pulse output channel is not limited to one or a combination of two or more of a square wave, a sine wave, and a triangular wave.
As shown in fig. 2, in an embodiment, the strength control circuit 233 includes a first resistor R10S, a second resistor R11S, a third resistor R12S, a fourth resistor R13S, a fifth resistor R9S, a sixth resistor R19S, a seventh resistor R18S, a first capacitor C1S, a second capacitor C2S, a third capacitor C3S, and an operational amplifier U1SATL 062.
Specifically, one end of the first resistor R10S is connected to a first power supply of 3.3V, one end of the second resistor R11S is grounded AGND, and the other end of the first resistor R10S is connected to the other end of the second resistor R11S, and commonly connected to one end of the fourth resistor R13S, one end of the third capacitor C3S, and the non-inverting input (+) of the operational amplifier U1SATL062, respectively; one end of the third resistor R12S is connected with a PWM signal PWM-AP, the other end of the third resistor R12S is respectively connected with one end of the third resistor R12S and one end of the second capacitor C2S; one end of the fifth resistor R9S is connected with a 12V second power supply, and the other end of the fifth resistor R9S is connected with one end of the first capacitor C1S; the other end of the first capacitor C1S, the other end of the second capacitor C2S and the other end of the third capacitor C3S are all grounded AGND; an inverting input (-) of the operational amplifier U1SATL062 is connected to one end of the sixth resistor R19S and one end of the seventh resistor R18S, respectively; the sixth mentionedThe other end of the resistor R19S is grounded AGND; the other end of the seventh resistor R18S is connected with the output end of the operational amplifier U1SATL062, and the output end of the operational amplifier U1SATL062 is also connected with a plurality of pulse output channels through an eighth resistor R14S and a ninth resistor R15S which are sequentially connected in series; the connection position of the eighth resistor R14S and the ninth resistor R15S is connected with the pulse width control circuit.
In one embodiment, the pulse width control circuit 232 includes a tenth resistor R16S, an eleventh resistor R17S, and a transistor Q7S 9014.
Specifically, one end of the tenth resistor R16S is connected to one end of the eleventh resistor R17S, and is commonly connected to the base of the transistor Q7S 9014; the other end of the eleventh resistor R17S and an emitter of the triode Q7S9014 are both grounded AGND; the collector of the triode Q7S9014 is connected with the junction of the eighth resistor R14S and the ninth resistor R15S.
It should be noted that, except for the strength control circuit 233 and the pulse width control circuit 232, the circuit structures of other units or modules all adopt the conventional technical means in the art, and therefore, the circuit structures thereof are not described in detail herein.
The high-frequency electrical stimulation apparatus for peripheral nerve conduction block of the present invention will be further explained below by way of specific examples.
In one embodiment, electrical stimulation unit 23 includes 2 sets of pulse output channels, and is distinguished by the letter A, B; when a user sets parameters such as a stimulation prescription, a channel, an amplitude value, a pulse width, time and the like through the man-machine interaction unit 11, under the control of the microcontroller 12, a preset stimulation pulse is output by the electrical stimulation unit 23 in a wireless communication mode, and the electrode 237 is connected with a special needle point conductive electrode needle to act on a human body to form a loop, so that the purpose of regularly stimulating human nerves is realized.
In this embodiment, the human-computer interaction unit includes 6 setting keys of "prescription", "channel", "+", "start/stop", and "treatment duration".
The prescription key is used for selecting a preset prescription or setting parameters to be stored as a new prescription; the channel key is used for selecting an output channel of the electrical stimulation pulse, and one or more channels can be selected to be output simultaneously; the "+" button: increasing the stimulation current intensity; a "-" key: reducing the stimulation current intensity; the "start/stop" button: after being pressed down, the electric stimulation is started, and after being pressed down again, the electric stimulation is stopped; the "treatment duration" button: the stimulation time length is selected, and the electrical stimulation is automatically stopped after the selected stimulation time is reached. The second communication unit 21 transmits the received channel selection parameter, current intensity parameter, and time length parameter to the control terminals of the multivibrator 231, the pulse width control circuit 232, the intensity control circuit 233, and the output driver circuit 234, and executes the recipe.
Further, the working flow of the high-frequency electrical stimulation device for peripheral nerve conduction block in practical application is as follows:
after the high-frequency electrical stimulation device is started, the main control module 1 and the high-frequency electrical stimulation module 2 are wirelessly connected, initialization operation is started after the connection of the main control module 1 and the high-frequency electrical stimulation module 2 to complete self-checking of equipment, channel selection, prescription setting, prescription selection and the like are carried out through a key instruction of a man-machine interaction unit 11 of the main control module 1 after initialization is completed, and a stimulation mode is entered through the key instruction of the man-machine interaction unit 11 after the prescription is selected; and under the stimulation mode, controlling and outputting stimulation current pulses corresponding to the preset prescription according to the key commands received by the man-machine interaction unit.
When the device is used, the electrode 237 connected with the special needle point conductive electrode needle is connected with the high-frequency electrical stimulation module 2 through the electrical connection port, after the device is electrified to complete initialization, channel selection, prescription setting and prescription selection and enter a stimulation mode, the special needle point conductive electrode needle is inserted into a corresponding position, and at the moment, the size of an output stimulation pulse signal can be adjusted through a key of the man-machine interaction unit 11.
To sum up, compared with the prior art, the high-frequency electrical stimulation device for peripheral nerve conduction block provided by the utility model can interrupt the conduction of nerves by using the high-frequency resistor, thereby replacing the use of local anesthesia drugs, and having the characteristics of environmental protection and safety; different prescription parameters can be set in real time through man-machine interaction to control parameters such as pulse frequency, pulse width, channels, amplitude, time and the like, and meanwhile, the prescription parameters can be stored in the main control module so as to be directly called next time, so that the method is fast and convenient; therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
1. A high frequency electrical stimulation apparatus for peripheral nerve conduction block comprising: the device comprises a main control module and a high-frequency electrical stimulation module;
the main control module is connected with the high-frequency electrical stimulation module and comprises a human-computer interaction unit, a microcontroller and a first communication unit; the human-computer interaction unit and the first communication unit are both connected with the microcontroller, and the human-computer interaction unit is used for setting and adjusting stimulation parameters; the main control module is used for outputting a control instruction according to the stimulation parameter and sending the control instruction to the high-frequency electrical stimulation module through the first communication unit;
the high-frequency electrical stimulation module is used for outputting corresponding stimulation pulses according to the control instruction, and comprises a second communication unit, a power supply unit and an electrical stimulation unit; wherein the content of the first and second substances,
the electrical stimulation unit comprises a multivibrator, a pulse width control circuit, an intensity control circuit, an output driving circuit and a plurality of pulse output channels;
the multivibrator is respectively connected with one end of the second communication unit, the pulse width control circuit and the power supply unit
Connecting the elements; the other end of the second communication unit is connected with the first communication unit; the pulse width control circuit is connected with the intensity control circuit through a frequency control circuit; the intensity control circuit is respectively connected with the output driving circuit and one end of each pulse output channel; the other end of the pulse output channel is connected with one end of an electrode, and the other end of the electrode is connected with a needle point conductive electrode needle.
2. The high-frequency electrical stimulation apparatus for peripheral nerve block according to claim 1, wherein the intensity control circuit includes a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first capacitor, a second capacitor, a third capacitor, and an operational amplifier;
one end of the first resistor is connected with a first power supply, one end of the second resistor is grounded, and the other end of the first resistor is connected with the other end of the second resistor and is commonly and respectively connected to one end of the fourth resistor, one end of the third capacitor and the non-inverting input end of the operational amplifier; one end of the third resistor is connected with a PWM signal, and the other end of the third resistor is respectively connected with one end of the third resistor and one end of the second capacitor; one end of the fifth resistor is connected with a second power supply, and the other end of the fifth resistor is connected with one end of the first capacitor; the other end of the first capacitor, the other end of the second capacitor and the other end of the third capacitor are all grounded; the inverting input end of the operational amplifier is respectively connected with one end of the sixth resistor and one end of the seventh resistor; the other end of the sixth resistor is grounded; the other end of the seventh resistor is connected with the output end of the operational amplifier, and the output end of the operational amplifier is also connected with the pulse output channels through an eighth resistor and a ninth resistor which are sequentially connected in series; and the connection position of the eighth resistor and the ninth resistor is connected with the pulse width control circuit.
3. The high-frequency electrical stimulation apparatus for peripheral nerve conduction block according to claim 2, wherein the pulse width control circuit comprises a tenth resistor, an eleventh resistor and a triode;
one end of the tenth resistor is connected with one end of the eleventh resistor, and the tenth resistor and the eleventh resistor are connected to the base electrode of the triode in common; the other end of the eleventh resistor and the emitting electrode of the triode are both grounded; and the collector of the triode is connected with the joint of the eighth resistor and the ninth resistor.
4. The high-frequency electrical stimulation device for peripheral nerve conduction block according to claim 1, wherein the output frequency range of the pulse output channel is 2 Hz-20000 Hz, the pulse width is 10 μ s-500 μ s, the output mode is monophasic or biphasic waveform, and the output waveform is any one or more than two of the following waveform combinations: square wave, sine wave, triangular wave.
5. The high-frequency electrical stimulation apparatus for peripheral nerve conduction block of claim 1, wherein the main control module further comprises: a storage unit;
the storage unit is connected with the microcontroller and is used for storing the stimulation parameters and/or preset parameters; the stimulation parameters and the preset parameters comprise any one or more of the following combinations: recipe, channel, amplitude, pulse width, frequency, on-off ratio, time.
6. The high-frequency electrical stimulation apparatus for peripheral nerve conduction block according to claim 1, wherein the high-frequency electrical stimulation module further comprises: a display unit;
and the display unit is connected with the electrical stimulation unit and is used for displaying the power supply condition and the working state of the high-frequency electrical stimulation module.
7. The high-frequency electrostimulation device for peripheral nerve conduction block according to claim 1, characterized in that the power supply unit is connected to an external power source.
8. The high-frequency electrical stimulation apparatus for peripheral nerve block according to claim 1, wherein the first communication unit and the second communication unit are connected by wireless communication.
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| CN202021614182.9U CN212327190U (en) | 2020-08-06 | 2020-08-06 | High-frequency electrical stimulation device for peripheral nerve conduction block |
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| CN202021614182.9U CN212327190U (en) | 2020-08-06 | 2020-08-06 | High-frequency electrical stimulation device for peripheral nerve conduction block |
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