CN117045907A - Medical electrostatic atomization device and system - Google Patents
Medical electrostatic atomization device and system Download PDFInfo
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- CN117045907A CN117045907A CN202310965742.7A CN202310965742A CN117045907A CN 117045907 A CN117045907 A CN 117045907A CN 202310965742 A CN202310965742 A CN 202310965742A CN 117045907 A CN117045907 A CN 117045907A
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- 238000000889 atomisation Methods 0.000 title claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 24
- 230000003068 static effect Effects 0.000 claims abstract description 22
- 230000003993 interaction Effects 0.000 claims abstract description 18
- 238000005070 sampling Methods 0.000 claims description 22
- 230000005669 field effect Effects 0.000 claims description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 21
- 239000003814 drug Substances 0.000 abstract description 19
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 16
- 239000002245 particle Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007600 charging Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003079 width control Methods 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000007786 electrostatic charging Methods 0.000 description 1
- 238000007590 electrostatic spraying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/02—Inhalators with activated or ionised fluids, e.g. electrohydrodynamic [EHD] or electrostatic devices; Ozone-inhalators with radioactive tagged particles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M2205/00—General characteristics of the apparatus
- A61M2205/50—General characteristics of the apparatus with microprocessors or computers
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Pulmonology (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
The application relates to the technical field of body cavity electrostatic atomization, in particular to a medical electrostatic atomization device and a system, wherein the medical electrostatic atomization device comprises atomization equipment, and a nozzle is connected to the outlet end of the atomization equipment; the device is characterized by further comprising an electrostatic generator, a microprocessor, a direct current power control circuit, a man-machine interaction circuit, a voltage feedback circuit and a current feedback circuit; the static generator is connected with the spray head, the direct current power control circuit is electrically connected with the microprocessor and the static generator, the voltage feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, the current feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, and the static generator is electrically connected with the direct current power control circuit, so that the uniformity and the adsorption rate of liquid medicine distribution can be increased.
Description
Technical Field
The application relates to the technical field of body cavity electrostatic atomization, in particular to a medical electrostatic atomization device and system.
Background
Atomization refers to dispersing a liquid into tiny droplets or particles through a nozzle to suspend and disperse the droplets or particles, and is widely used in various fields of life, particularly in the medical field, for example, in the treatment of allergic skin, and in dermatology, in the treatment of respiratory diseases such as bronchitis, asthma, and the like.
The existing atomizing equipment diffuses and sprays the liquid medicine through the spray head to form a liquid medicine cloud fog group by pressurizing, and as the diameters and the densities of liquid medicine particles are slightly different, most of liquid medicine particles with large diameters and densities are distributed in the middle position of the liquid medicine cloud fog group under the action of pressure, atomized liquid medicine particles are not uniformly distributed, so that the effective coverage area is low and the coverage is not uniform; the liquid medicine particles leave the spray head to obtain a certain initial speed, when the liquid medicine particles reach the target area of the sprayed object, the final speed is not reduced, the liquid medicine particles collide with the target object at a high speed, the liquid medicine particles are sprung out by impact force instead, and the adhesion rate of the liquid medicine in the target area of the sprayed object is reduced; and the liquid medicine particles can hardly effectively cover the back surface which is blocked by the sprayed objects.
The above problems are to be solved.
Disclosure of Invention
Aiming at the problems that the effective coverage of liquid medicine mist diffused by a spray head of the traditional atomization device is low and uneven, and liquid medicine particles and target objects are bounced off by impact force when being collided at high speed, the application provides a medical electrostatic atomization device and a system for solving the problems.
In order to achieve the above purpose, the present application is realized by the following technical scheme:
the embodiment of the application discloses a medical electrostatic atomization device, which comprises atomization equipment, wherein an outlet end of the atomization equipment is connected with a spray head;
the device also comprises an electrostatic generator, a microprocessor, a direct current power control circuit, a man-machine interaction circuit, a voltage feedback circuit and a current feedback circuit;
the static generator is connected with the spray head, the direct current power control circuit is electrically connected with the microprocessor and the static generator, the voltage feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, the current feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, and the static generator is electrically connected with the direct current power control circuit.
The technical scheme is adopted: the controllable micro-current high-voltage electrostatic generator is integrated on the pressurized atomizing equipment, one pole of the electrostatic generator is connected to the spray head through a high-voltage cable, the spray head generates electrostatic high voltage, when pressurized liquid medicine is sprayed out through the spray head, the liquid medicine and liquid medicine particles are charged, charged fog drops are formed, and the uniformity and the adsorption rate of liquid medicine distribution are improved. Because of the phenomenon of electrostatic adsorption, the adsorption capacity of fog drops is increased, the fog drops are not easy to be sprung out by impact force, more uniform and larger coverage is obtained on a target surface, and the fog drops are easy to be adsorbed on the inner surface of an abdominal cavity rapidly, accurately, automatically and uniformly.
Preferably, the dc power control circuit includes a half-bridge driving module U13, a field effect transistor Q4, a field effect transistor Q5, a capacitor C32, an inductance L4, a resistor R70, and a resistor R73; the half-bridge driving module U13 is electrically connected with the field effect transistor Q4 and the field effect transistor Q5, the output ends of the field effect transistor Q4 and the field effect transistor Q5 are electrically connected with the capacitor C32 and the inductor L4, and the output ends of the capacitor C32 and the inductor L4 are electrically connected with the resistor R70 and the resistor R73.
The technical scheme is adopted: the half-bridge driving module U13 can drive two field effect transistors to generate a high-frequency square wave, then the high-frequency square wave is filtered by the inductance L4 and the capacitance C32 filter circuit to obtain an adjustable high-power output voltage, the microprocessor cuts off the wave by the half-bridge principle through changing PWM pulse width control, 24V direct current is changed into high-frequency alternating current with adjustable amplitude, the high-frequency alternating current is converted into an adjustable direct current voltage through an LC filter circuit formed by the L4 and the C32, the output voltage obtains an ADC voltage through the voltage dividing resistors R70 and R73, and the ADC voltage can be detected by the microprocessor to realize closed-loop accurate control.
Further preferably, the current feedback circuit includes a current detection amplifier module U12, a sampling resistor R85, a sampling resistor R86, a sampling resistor R87, and a dual operational amplifier U10B, where an input end of the current detection amplifier module U12 is electrically connected to the sampling resistor R85, the sampling resistor R86, and the sampling resistor R87, and the current detection amplifier module U12 is electrically connected to the dual operational amplifier U10B.
The technical scheme is adopted: the current detection is realized by using a current detection MAX4372 through collecting the voltages of sampling resistors R85, R86 and R87 which are connected in series between the output voltage and the high-voltage generator, the current change reflects a small-signal voltage on the sampling resistor, an accurate voltage which is in direct proportion to the current is obtained through the amplification processing of the MAX4372, and the microprocessor realizes the detection of the current by detecting the voltage.
Further preferably, the man-machine interaction circuit can be used for man-machine interaction between a user and equipment to adjust equipment parameters.
The technical scheme is adopted: the man-machine interaction circuit is equivalent to a control unit, and an operator can know the related parameters through the man-machine interaction circuit and regulate and control the related parameters.
Further preferably, the electrostatic generator is capable of boosting and rectifying to obtain high-voltage static electricity and discharging the high-voltage static electricity through the spray head.
The technical scheme is adopted: the controllable micro-current high-voltage electrostatic generator in the shell charges liquid droplets passing through the spray head to form electrostatically charged droplets, and the surface of a spray target induces opposite charges due to the electrostatic induction principle, so that the moving droplets do accelerated motion under the action of electric field force and are adsorbed on the target under the interaction of charges, the electrostatic spraying improves the penetration of the droplets, the coverage rate of the target surface, the utilization rate of the droplets, the spraying effect and the treatment effect.
Further preferably, the intelligent control device comprises a microprocessor, a key panel, a liquid crystal display unit, a 485 bus control unit, a PLC control unit, a voltage and current feedback unit, a direct current power control unit and a spray head unit, wherein the microprocessor is electrically connected with the key panel, the 485 bus control unit, the liquid crystal display unit, the PLC control unit, the direct current power control unit and the voltage and current feedback unit, the spray head unit is electrically connected with the direct current power control unit, and the direct current power control unit is electrically connected with the voltage and current feedback unit.
The technical scheme is adopted: when the device enters into a working state, the device generates a voltage specified in a set parameter, at the moment, the current is detected, the voltage and the current are displayed on the liquid crystal screen, and the voltage and the current are subjected to closed-loop control through the parameter set by a user, so that the voltage and the current form a power curve, and a better spraying effect is generated.
Further preferably, the microprocessor includes a memory for storing parameters set by a user, including electrostatic voltage and electrostatic current values.
The technical scheme is adopted: the memory can store parameters set by the book, and in the implementation process, the parameters set by the user are directly transmitted to the memory, and the memory controls other components and units.
Further preferably, the liquid crystal display unit is capable of displaying the operating state, the control amount, the electrostatic voltage, and the set value of the electrostatic current.
The technical scheme is adopted: the operator can know the relevant parameters of the device through the liquid crystal display unit.
Further preferably, the 485 bus control unit can be used for expanding a human-machine interface remote control.
The technical scheme is adopted: the 485 bus control unit is provided with a communication module, can realize information transmission and remote control, and is convenient for operators to remotely operate
Further preferably, the key panel can be used for human-computer interaction between a user and a device, and parameters of the device are adjusted.
The technical scheme is adopted: the operator can adjust the equipment parameters through the control panel, and this signal transmission gives microprocessor to control this device, can adjust the parameter in order to adapt to patient's demand according to actual conditions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a block diagram of an electrostatic atomizer according to the present application;
fig. 2 is a block diagram of an electrostatic atomizing system according to the present application;
FIG. 3 is a diagram of a DC power control circuit according to the present application;
FIG. 4 is a circuit diagram of a current feedback circuit according to the present application;
FIG. 5 is a voltage line graph of the output of the high voltage generator according to embodiment 2 of the present application;
FIG. 6 is a current contour diagram of the electrostatic generator of example 2 of the present application;
fig. 7 is a voltage line graph of the output of the high voltage generator of embodiment 3 of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
Referring to fig. 1, the application provides a medical electrostatic atomization device, which comprises an atomization device, wherein an outlet end of the atomization device is connected with a spray head;
the device also comprises an electrostatic generator, a microprocessor, a direct current power control circuit, a man-machine interaction circuit, a voltage feedback circuit and a current feedback circuit;
the static generator is connected with the spray head, the direct current power control circuit is electrically connected with the microprocessor and the static generator, the voltage feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, the current feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, and the static generator is electrically connected with the direct current power control circuit.
For example, referring to fig. 3, the dc power control circuit includes a half-bridge driving module U13, a field effect transistor Q4, a field effect transistor Q5, a capacitor C32, an inductance L4, a resistor R70, and a resistor R73; the half-bridge driving module U13 is electrically connected with the field effect transistor Q4 and the field effect transistor Q5, the output ends of the field effect transistor Q4 and the field effect transistor Q5 are electrically connected with the capacitor C32 and the inductor L4, and the output ends of the capacitor C32 and the inductor L4 are electrically connected with the resistor R70 and the resistor R73. The half-bridge driving module U13 can drive two field effect transistors to generate a high-frequency square wave, then the high-frequency square wave is filtered by the inductance L4 and the capacitance C32 filter circuit to obtain an adjustable high-power output voltage, the microprocessor cuts off the wave by the half-bridge principle through changing PWM pulse width control, 24V direct current is changed into high-frequency alternating current with adjustable amplitude, the high-frequency alternating current is converted into an adjustable direct current voltage through an LC filter circuit formed by the L4 and the C32, the output voltage obtains an ADC voltage through the voltage dividing resistors R70 and R73, and the ADC voltage can be detected by the microprocessor to realize closed-loop accurate control.
For example, referring to fig. 4, the current feedback circuit includes a current detection amplifier module U12, a sampling resistor R85, a sampling resistor R86, a sampling resistor R87, and a dual operational amplifier U10B, where an input end of the current detection amplifier module U12 is electrically connected to the sampling resistor R85, the sampling resistor R86, and the sampling resistor R87, and the current detection amplifier module U12 is electrically connected to the dual operational amplifier U10B. The current detection is realized by using a current detection MAX4372 through collecting the voltages of sampling resistors R85, R86 and R87 which are connected in series between the output voltage and the high-voltage generator, the current change reflects a small-signal voltage on the sampling resistor, an accurate voltage which is in direct proportion to the current is obtained through the amplification processing of the MAX4372, and the microprocessor realizes the detection of the current by detecting the voltage.
The man-machine interaction circuit can be used for man-machine interaction between a user and equipment to adjust equipment parameters.
Illustratively, the static generator is capable of boosting, rectifying to obtain high voltage static electricity and discharging the static electricity through the spray head. The static generator, direct voltage produces the high frequency alternating current of 15-30K through the oscillator, boost, commutate through the static generator, get the high-pressure static and release through the shower nozzle.
For example, please refer to fig. 2, which includes a microprocessor, a key panel, a liquid crystal display unit, a 485 bus control unit, a PLC control unit, a voltage and current feedback unit, a dc power control unit, and a nozzle unit, wherein the microprocessor is electrically connected with the key panel, the 485 bus control unit, the liquid crystal display unit, the PLC control unit, the dc power control unit, and the voltage and current feedback unit, the nozzle unit is electrically connected with the dc power control unit, and the dc power control unit is electrically connected with the voltage and current feedback unit.
The device is exemplified by reading the set parameters in the memory after being started, entering a reset state, then carrying out error detection on hardware, displaying error codes if abnormal hardware exists, entering a start waiting state if all normal hardware exists, entering a working state if a trigger switch is opened, generating a voltage specified in the set parameters by the device, detecting current at the moment, displaying the voltage and the current on a liquid crystal screen, carrying out closed-loop control on the voltage and the current through the parameters set by a user, enabling the voltage and the current to form a power curve so as to generate a better spraying effect, receiving key information by the device at any time in the working process, and adjusting and modifying the parameters by the user at any time and storing the parameters in the memory of the device. The equipment can also detect the working state in real time, and find out the abnormality and the time error code. The equipment has a plurality of working modes so as to adapt to different spraying environments.
Illustratively, the microprocessor includes a memory for storing user-set parameters, including electrostatic voltage and electrostatic current values.
The liquid crystal display unit is capable of displaying the operating state, the control amount, the electrostatic voltage, and the set value of the electrostatic current, for example.
Illustratively, the 485 bus control unit can be used to extend human machine interface remote control.
The key panel can be used for human-computer interaction of a user and settings, and parameters of the device can be adjusted.
Example 1: referring to fig. 5 and 6, when the microprocessor detects voltage and current to realize regional power control, the voltage and current will be reduced according to the μa setting parameters when the nozzle is gradually close to the ground point, and when the nozzle is close to a certain distance, the voltage will not be reduced again at this time to maintain the best charging effect and obtain safe electrostatic current, so that when the nozzle is close to the ground point and even contacts the ground point, a certain voltage is ensured, and safe electrostatic current is maintained. This minimum hold charge energy can be set by the human-machine interaction module.
From the graph, it can be seen that the electrostatic generator can obtain an electrostatic voltage of 15KV-50KV and a current of 15-60 ua (the electrostatic voltage and the electrostatic current are controllable and can be adjusted according to the required range) so as to enable droplets or enough to be charged and ensure that the current is small enough to ensure safety, and at a distance of 1-5 cm, the output current is increased at the moment of approaching the grounding point, when the current is continuously increased to a certain value, the current is fed back to the microprocessor, the microprocessor automatically adjusts the output voltage (direct current power control) so as to keep the ratio of the current to the voltage at a constant value, when the voltage is reduced, the current is not reduced any more, and when the voltage is reduced to a set value of the minimum charging energy, the electrostatic generator is kept at the minimum constant energy for operation.
Example 2: referring to fig. 5 and 6, the microprocessor realizes the electrostatic charging energy controllable technology by detecting voltage and current, two man-machine interaction adjustment parameters are provided, one is KV adjustment, the other is μa adjustment, KV is voltage output by the high voltage generator, the voltage range is 0-100%, the set value is the maximum voltage that the generator can reach, for example, the set value is 85%, at this time, the electrostatic generator is turned on for air (the electrostatic generator is turned on for air, meaning that the electrostatic generator is far away from the ground point so as to deviate from the action range of the maximum voltage), and the voltage output by the electrostatic generator is 85%; μA is regulated to the current of the electrostatic generator in the range of 0-100%, and this parameter represents the ratio of the current to the output voltage, e.g. the value is set to 85%, representing that the current can reach 85% of the voltage at maximum. When the voltage is set to be a fixed value, the electrostatic generator is turned on at the moment, the spray head is slowly close to the grounding point, the current is increased along with the decrease of the distance from the spray head to the grounding point, when the current is increased to 85% of the voltage, the voltage and the current are continuously close to the grounding point, the voltage and the current are reduced along with the increase, and the current is always kept to be 85% of the voltage. It is understood that the μa adjustment parameter is the sensitivity of changing the output voltage of the electrostatic generator, and when μa is adjusted to be smaller, the voltage of the electrostatic generator is more sensitive to the ground distance, and when μa is adjusted to be larger, the voltage of the electrostatic generator is changed when the electrostatic generator is very close to the ground point.
Example 3: referring to fig. 7, when the microprocessor detects voltage and current to realize regional power control, the voltage and current will be reduced according to the μa setting parameters when the nozzle is gradually close to the ground point, and when the nozzle is close to a certain distance, the voltage will not be reduced any more, so as to maintain the best charging effect and obtain safe electrostatic current, so that when the nozzle is close to the ground point or even contacts the ground point, a certain voltage is ensured, and safe electrostatic current is maintained. This minimum hold charge energy can be set by a menu.
The device elements in the above embodiments are conventional device elements unless otherwise specified, and the connection and control methods are conventional connection and control methods unless otherwise specified.
While the application has been described with reference to the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments may be changed without departing from the spirit of the application, and thus a plurality of specific embodiments are common variation ranges of the application, and will not be described in detail herein.
Claims (10)
1. The medical electrostatic atomization device comprises atomization equipment, wherein an outlet end of the atomization equipment is connected with a spray head;
the device is characterized by further comprising an electrostatic generator, a microprocessor, a direct current power control circuit, a man-machine interaction circuit, a voltage feedback circuit and a current feedback circuit;
the static generator is connected with the spray head, the direct current power control circuit is electrically connected with the microprocessor and the static generator, the voltage feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, the current feedback circuit is electrically connected with the direct current power control circuit and the microprocessor, and the static generator is electrically connected with the direct current power control circuit.
2. The medical electrostatic atomizing device according to claim 1, wherein the dc power control circuit includes a half-bridge driving module U13, a field-effect transistor Q4, a field-effect transistor Q5, a capacitor C32, an inductance L4, a resistor R70, and a resistor R73; the half-bridge driving module U13 is electrically connected with the field effect transistor Q4 and the field effect transistor Q5, the output ends of the field effect transistor Q4 and the field effect transistor Q5 are electrically connected with the capacitor C32 and the inductor L4, and the output ends of the capacitor C32 and the inductor L4 are electrically connected with the resistor R70 and the resistor R73.
3. The medical electrostatic atomizing device according to claim 1, wherein the current feedback circuit includes a current sense amplifier module U12, a sampling resistor R85, a sampling resistor R86, a sampling resistor R87, and a dual operational amplifier U10B, an input terminal of the current sense amplifier module U12 is electrically connected to the sampling resistor R85, the sampling resistor R86, and the sampling resistor R87, and the current sense amplifier module U12 is electrically connected to the dual operational amplifier U10B.
4. The medical electrostatic atomizing apparatus according to claim 1, wherein the man-machine interaction circuit is capable of being used for man-machine interaction between a user and the device to adjust the device parameters.
5. The medical electrostatic atomizing apparatus according to claim 1, wherein the electrostatic generator is capable of boosting and rectifying to obtain high-voltage static electricity and discharging the high-voltage static electricity through the nozzle.
6. The medical electrostatic atomization system is applied to the electrostatic atomization device according to claim 1, and is characterized by comprising a microprocessor, a key panel, a liquid crystal display unit, a 485 bus control unit, a PLC control unit, a voltage and current feedback unit, a direct current power control unit and a spray head unit, wherein the microprocessor is electrically connected with the key panel, the 485 bus control unit, the liquid crystal display unit, the PLC control unit, the direct current power control unit and the voltage and current feedback unit, the spray head unit is electrically connected with the direct current power control unit, and the direct current power control unit is electrically connected with the voltage and current feedback unit.
7. The electrostatically atomizing system of claim 6, wherein the microprocessor comprises a memory for storing user-set parameters including the electrostatic voltage and the electrostatic current value.
8. An electrostatic atomizing system according to claim 6, wherein the liquid crystal display unit is capable of displaying the operating state, the control amount, the electrostatic voltage, and the set value of the electrostatic current.
9. An electrostatic atomizing system according to claim 6, wherein the 485 bus control unit is operable to extend human machine interface remote control.
10. An electrostatic atomizing system according to claim 6, wherein the key panel is adapted for user and set human-machine interaction to adjust parameters of the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310965742.7A CN117045907A (en) | 2023-08-02 | 2023-08-02 | Medical electrostatic atomization device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310965742.7A CN117045907A (en) | 2023-08-02 | 2023-08-02 | Medical electrostatic atomization device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117045907A true CN117045907A (en) | 2023-11-14 |
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ID=88656507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310965742.7A Pending CN117045907A (en) | 2023-08-02 | 2023-08-02 | Medical electrostatic atomization device and system |
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|---|---|
| CN (1) | CN117045907A (en) |
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2023
- 2023-08-02 CN CN202310965742.7A patent/CN117045907A/en active Pending
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