CN111228649A - A low temperature plasma generating device with adjustable intensity - Google Patents

Abstract

The invention discloses a low-temperature plasma generating device with adjustable intensity, which is used to solve the problems of large volume and weight of the existing plasma treatment device and harsh environment for generating plasma; The bottom core module and the handle treatment control module; the present invention generates plasma of different intensities through ionized air, during the treatment process; the plasma treatment current is detected by the current acquisition unit, and the collected data is transmitted to the feedback acquisition unit through the cable for modeling. Data conversion, data processing through the processor, and uploading to the upper computer management system through the communication unit for monitoring, forming a closed loop; the second interface on the underlying core module is independently configured to support the connection of several handle treatment control modules, which are independent of each other during treatment , without interference.

Description

A low temperature plasma generating device with adjustable intensity

technical field

The invention relates to the field of medical instruments, in particular to a low-temperature plasma generating device with adjustable intensity.

Background technique

At present, common clinical treatments for chronic skin ulcers such as large-area burns, diabetic foot, psoriasis, and drug-induced dermatitis include: 1. Interventional therapy of drug injection and excess skin excision; 2. Non-interventional light waves therapy; 3, artificial natural therapy. The above treatment methods all have the following defects and problems to varying degrees: paralysis of muscles, large wound surface, large side effects, low efficiency, long recovery time, and unsatisfactory maintenance effect in the later stage, etc. The effect of plasma in the treatment of some skin diseases is highly targeted , high efficiency, no side effects and other advantages, it can provide a new treatment option for the treatment of chronic wound diseases such as easy infection, difficult to heal, and drug allergy.

However, most of the existing plasma therapy devices use AC voltage transformation technology, which is large in size and weight, and has strict requirements on the environment for generating plasma, and is required to be in an environment of nitrogen and helium.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a low-temperature plasma generating device with adjustable intensity, which is used to solve the problems of large volume and weight of the existing plasma treatment device and harsh environment for generating plasma;

The present invention converts DC low voltages of different intensities into AC low voltages of different intensities through the driving unit and the power conversion unit, and converts the AC low voltages into DC high voltages through the first-stage booster components and the second-stage booster components, and the DC high-voltage passes through the high-voltage output unit. Current limiting and protection, and finally output to the plasma generator. Different intensities of DC high voltage generate plasma of different intensities through ionized air. During the treatment process; the plasma treatment current is detected by the current acquisition unit, and the collected plasma is collected through the cable. The data is transmitted to the feedback acquisition unit for analog-to-digital conversion, processed by the processor, and uploaded to the upper computer management system through the communication unit for monitoring, forming a closed loop; the upper computer management system automatically switches to the interface, the second interface on the underlying core module Independent configuration, supports the connection of several handle treatment control modules, and is independent of each other during treatment without interference.

The object of the present invention can be achieved by the following technical solutions: a low-temperature plasma generating device with adjustable intensity, comprising a bottom core module and a handle treatment control module, the bottom core module includes a communication unit, a power module, a processor, and an actuator and interface module; the communication unit sends parameters to the processor, the parameters are the parameters set by the operator through the upper computer management system, and the parameters include treatment intensity, treatment time, and the first interface; the processor parses the parameters and generates control instructions according to the parameters at the same time. It is transmitted to the actuator, and the actuator is used to select the voltage corresponding to the intensity on the power module and output and control the on and off of the first interface inside the interface module;

The handle therapy control module includes a second interface, a drive unit, a power conversion unit, a first-stage booster component, a second-level booster component, and a high-voltage output unit;

The second interface in the handle treatment control module is connected with the first interface corresponding to the interface module, and then connected with the voltage corresponding to the intensity; the second interface is connected with the drive unit and the power conversion unit; the drive unit is used to generate a specific state. The drive signal; the power conversion unit is used to convert the DC low voltage into the AC low voltage through the drive signal of the drive unit;

The power conversion unit transmits the AC low voltage to the first-stage boosting component, and the first-stage boosting component is used to convert the AC low-voltage into the AC high-voltage; the first-stage boosting component transmits the AC high-voltage to the second-stage boosting component, so The secondary boosting component is used to convert the AC high voltage into a DC high voltage; the secondary boosting component transmits the DC high voltage to the high voltage output unit, and the high voltage output unit is used to output the DC high voltage to the plasma generator, and the plasma generator will correspond to the DC high voltage. The intensity of DC high voltage generates plasma of corresponding intensity by ionizing the air; different intensity plasma means that the plasma concentration generated is different or the plasma current generated is different; the higher the voltage intensity, that is, the higher the voltage, the higher the plasma concentration generated. high, that is, the generated plasma current is larger;

When the second interface on the handle therapy control module establishes a connection with the interface module on the bottom core module, the handle therapy control module sends a connection signal to the feedback acquisition unit on the bottom core module, and the processor collects the interface module after receiving the connection signal. The connection status includes connection and disconnection; the processor uploads to the upper computer management system through the communication unit, and the upper computer management system prompts the connection status of several first interfaces; when the operator sets parameters through the upper computer management system, The interface module automatically selects and activates the second interface of the connected handle therapy control module. When one of the first interfaces is occupied, the connection state is connected; the interface module automatically switches to another first interface.

Further, the underlying core module further includes a main power supply and a feedback acquisition unit; the output end of the feedback acquisition unit is connected in communication with the input end of the processor, and the feedback acquisition unit is used to collect the high voltage DC output from the measurement high voltage output unit received by the interface module. The size of the discharge current and the connection status of the interface module; the interface module communicates with the feedback acquisition unit;

The output end of the processor is connected with the input end of the actuator, and the actuator executes the control instruction of the processor; the control instruction includes selecting the power module to generate the corresponding current intensity and the first interface corresponding to the interface module;

The main power supply is used to provide power for each component on the underlying core module; the power supply module is electrically connected to the actuator, and the power supply module is used to output voltages of different intensities; the interface module includes several first interfaces, each of which is connected correspondingly There is a handle therapy control module; the range of voltage of different intensities is 0 to DC36V;

Further, the handle treatment control module further includes a current acquisition unit; the current acquisition unit is used to measure the high voltage DC discharge current output by the high voltage output unit and transmit it to the second interface, and the second interface will measure the high voltage output by the high voltage output unit. The magnitude of the DC discharge current is transmitted to the interface module.

Further, the actuator is composed of a photocoupler, a triode, a relay and a bus, and the processing steps of the actuator are as follows:

S1: The processor sends a current intensity command, and selects the corresponding intensity in the power module and outputs it to the bus through photocoupler, triode signal amplification, and relay action;

S2: The processor sends an interface output command, and the corresponding interface on the control bus is turned on through the optocoupler, triode, and relay, and the selected current intensity is sent to the interface module to output the first-stage boosting component through the high-frequency transformer. Converted into AC high voltage, the secondary boosting component converts the AC high voltage into DC high voltage through a voltage doubling rectifier circuit;

Further, the plasma generator is used for ionizing air and generating plasma in the semi-open cavity through the high-voltage probe;

Compared with the prior art, the beneficial effects of the present invention are:

1. The operator sets the corresponding treatment intensity, treatment time, treatment interface and other parameters through the upper computer management system. The parameters are sent to the processor through the communication unit. The processor parses the parameters and controls the actuator according to the parameters. The actuator selects the corresponding On the other hand, it controls the on-off of the interface module. The handle therapy control module is connected to the power supply of different intensities through the second interface, and the DC and low voltage of different intensities are converted into different intensities through the drive unit and the power conversion unit. AC low voltage, the AC low voltage is converted into DC high voltage through the first-stage booster component and the second-stage booster component, and the DC high voltage is limited and protected by the high-voltage output unit, and finally output to the plasma generator. The ionized air generates plasma of different intensities. During the treatment process, the plasma treatment current is detected by the current acquisition unit, the collected data is transmitted to the feedback acquisition unit through the cable for analog-to-digital conversion, and the data is processed by the processor. The unit is uploaded to the upper computer management system for monitoring, forming a closed loop;

2. When the second interface on the handle therapy control module establishes a connection with the interface module on the bottom core module, the handle therapy control module will send a stable connection signal to the feedback acquisition unit on the bottom core module, and the processor will synthesize the connection of the interface module The status is uploaded to the upper computer management system through the communication unit, and the upper computer management system will prompt the connection status of several first interfaces; during treatment, when the operator sets the treatment parameters through the upper computer management system, the interface module will automatically select and activate the connection The second interface of the handle therapy control module, when one of the first interfaces is occupied, the system automatically switches to the other first interface; the host computer management system automatically switches to the interface, and the second interface on the underlying core module is independently configured, It supports the connection of several handle treatment control modules, and the treatment is independent of each other without interference.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

Fig. 1 is the principle block diagram of a kind of low temperature plasma generating device with adjustable intensity of the present invention;

Reference number:

1-host computer management system; 2-bottom core module; 3-handle therapy control module; 4-communication unit; 5-main power supply; 6-power supply module; 7-processor; 8-feedback acquisition unit; 9-actuator ; 10-Interface module; 11-Second interface; 12-Drive unit; 13-Power conversion unit; ; 18 - Plasma generator.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1 , a low-temperature plasma generating device with adjustable intensity, including a host computer management system 1, a bottom core module 2 and a handle therapy control module 3, and the host computer management system 1 and the bottom core module 2 are connected in communication with each other, The underlying core module 2 is electrically connected to the handle therapy control module 3, the handle therapy control module 3 is electrically connected to the plasma generator 18, and the host computer management system 1 is used to monitor the state of the plasma device, issue therapy control information, and manage patient information and record treatment records; treatment control information includes treatment intensity parameters, treatment time parameters and treatment interface parameters; patient information includes name, ID number, gender, age, telephone, address, disease category, disease remarks and registration time; treatment records are The key information of each treatment of the patient, the key information includes treatment intensity, treatment time, number of irradiation areas, pictures of the affected area and treatment time;

The bottom core module 2 is used to generate various treatment voltages, analyze the instructions of the host computer management system 1, control the output state and output voltage intensity of each interface, collect the therapeutic current of each output interface and monitor the status of each output interface; the bottom core module 2 includes: Communication unit 4, main power supply 5, power supply module 6, processor 7, feedback acquisition unit 8, actuator 9 and interface module 10; communication unit 4 is used for data interaction between the upper computer management system 1 and the underlying core module 2; The communication unit 4 is connected in communication with the processor 7, and the processor 7 is used to parse the instructions issued by the upper computer management system 1, control the execution instructions of each component, calculate and integrate the data of the interface module 10 and upload it to the upper computer management system 1, and feedback collection. The output end of the unit 8 is connected in communication with the input end of the processor 7, and the feedback collection unit 8 is used to collect the treatment current intensity fed back by the handle treatment control module 3 and the connection state of the interface module 10; the connection state includes connection and disconnection; the interface The module 10 is connected in communication with the feedback acquisition unit 8; the output end of the processor 7 is connected with the input end of the actuator 9, and the actuator 9 is used to execute the instructions of the processor 7 and select the power supply module 6 to generate the corresponding current intensity and pass the interface module 10. output; the main power supply 5 is used to provide power for each component on the underlying core module 2; the power supply module 6 is electrically connected to the actuator 9, and the power supply module 6 is used to output voltages of different intensities; the interface module 10 includes several first interfaces, Each first interface is respectively connected with a handle therapy control module 3; the voltage range of different intensities is 0 to DC36V;

The handle therapy control module 3 is used to generate plasma of different intensities according to different input voltages; the handle therapy control module 3 includes a second interface 11 , a drive unit 12 , a power conversion unit 13 , a primary booster component 14 , and a secondary booster component 15. The high-voltage output unit 16, the current acquisition unit 17 and the plasma generator 18; one end of the second interface 11 is connected to the interface module 10; the other end of the second interface 11 is electrically connected to the drive unit 12 and the power conversion unit 13 respectively, The drive unit 12 is used to generate a drive signal of a specific state; the power conversion unit 13 is used to convert the DC low voltage into an AC low voltage according to the drive signal of the drive unit 12; The first-stage boosting part 14 is used to convert the AC low voltage into an AC high-voltage; the first-stage boosting part 14 transmits the AC high-voltage to the second-stage boosting part 15, and the second-stage boosting part 15 is used to convert the AC high-voltage into a DC high-voltage; two The stage boosting component 15 transmits the DC high voltage to the high voltage output unit 16, the high voltage output unit 16 is used to output the DC high voltage to the plasma generator 18, and the current acquisition unit 17 is used to measure the high voltage DC discharge current output by the high voltage output unit 16 and output the high voltage DC discharge current. It is transmitted to the second interface 11, and the second interface 11 transmits the measurement of the high-voltage DC discharge current output by the high-voltage output unit 16 to the interface module 10; the plasma generator 18 is used to ionize the air in the semi-open cavity through the high-voltage probe and generate plasma;

The actuator 9 is composed of a photocoupler, a triode, a relay and a bus. The processing steps of the actuator are as follows:

S1: The processor 7 issues a current intensity command, and selects the corresponding current intensity in the power supply module 6 and outputs it to the bus through the photocoupler, triode signal amplification, and relay action;

S2: The processor 7 issues an interface output command, and the corresponding port on the control bus is turned on through the optocoupler, triode, and relay, and the selected current intensity is sent to the interface module 10 for output;

The first-stage boosting component 14 converts AC low voltage into AC high-voltage through a high-frequency transformer, and the second-stage boosting component 15 converts AC high-voltage into DC high-voltage through a voltage-doubling rectifier circuit;

The plasma intensity adjustment control principle of the present invention: the operator sets the corresponding treatment intensity, treatment time, treatment interface and other parameters through the host computer management system 1, the parameters are sent to the processor 7 through the communication unit 4, and the processor 7 parses the parameters and according to the parameters The actuator 9 is controlled. On the one hand, the actuator 9 selects the current intensity output of the corresponding intensity. On the other hand, it controls the on-off of the interface module 10. The handle therapy control module 3 is connected to the power supply of different intensities through the second interface 11, through the drive unit. 12 and the power conversion unit 13 convert DC low voltages of different strengths into AC low voltages of different strengths, and convert the AC low voltages into DC high voltages through the first-stage boosting component 14 and the second-level boosting components 15, and the DC high voltages pass through the high-voltage output unit 16. Current limiting and protection, and finally output to the plasma generator 18, different intensities of DC high voltage, through ionized air to generate plasma of different intensities, during the treatment process; the plasma treatment current is detected by the current acquisition unit 17, and collected through the cable. The received data is transmitted to the feedback acquisition unit 8 for analog-to-digital conversion, processed by the processor 7, and uploaded to the upper computer management system 1 through the communication unit 4 for monitoring, forming a closed loop;

Multi-interface connection principle: when the second interface 11 on the handle therapy control module 3 establishes a connection with the interface module 10 on the underlying core module 2, the handle therapy control module 3 will send a stable connection to the feedback acquisition unit 8 on the underlying core module 2 signal, the processor 7 will integrate the connection status of the interface module 10, and upload it to the upper computer management system 1 through the communication unit 4, and the upper computer management system 1 will prompt the connection status of several first interfaces; during treatment, the operator passes the upper computer When the management system 1 sets the parameters, the interface module 10 will automatically select and activate the second interface of the connected handle therapy control module 3, and when one of the first interfaces is occupied, the system will automatically switch to the other first interface; The management system 1 automatically switches to the interface, and the second interface on the underlying core module 3 is independently configured to support the connection of several handle treatment control modules 3, and the treatment is independent of each other without interference.

The above-disclosed preferred embodiments of the present invention are provided only to help illustrate the present invention. The preferred embodiments do not describe all the details and do not limit the invention to specific embodiments only. Obviously, many modifications and variations are possible in light of the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is to be limited only by the claims and their full scope and equivalents.

Claims (7)

1. A low-temperature plasma generating device with adjustable intensity, comprising a bottom core module (2) and a handle treatment control module (3), wherein the bottom core module (2) comprises a communication unit (4), a power supply a module (6), a processor (7), an executive mechanism (9) and an interface module (10); the communication unit (4) sends parameters to the processor (7), the parameters being that the operator manages the system (1) through the host computer ) set parameters, the parameters include treatment intensity, treatment time, and the first interface; the processor (7) analyzes the parameters and simultaneously generates control instructions according to the parameters and transmits them to the execution mechanism (9), and the execution mechanism (9) is used to select the power module ( 6) outputting and outputting the voltage corresponding to the intensity on the interface module (10) and controlling the on and off of the first interface inside the interface module (10); The handle therapy control module (3) includes a second interface (11), a drive unit (12), a power conversion unit (13), a first-stage booster component (14), a second-level booster component (15) and a high-voltage output unit(16); The second interface (11) in the handle treatment control module (3) is connected with the corresponding first interface of the interface module (10), and then connected with the voltage corresponding to the intensity; the second interface (11) is connected with the driving unit (12) and The power conversion unit (13) is connected; the driving unit (12) is used for generating a driving signal of a specific state; the power conversion unit (13) is used for converting the low-voltage DC into the low-voltage AC through the driving signal of the driving unit (12); The drive signal in a specific state is a PWM wave with a frequency of 1Khz-500Khz, a duty cycle of 1%-50%, and an amplitude of 8V; The power conversion unit (13) transmits the AC low voltage to the first-stage boosting component (14), and the first-stage boosting component (14) is used for converting the AC low-voltage into the AC high-voltage; the first-stage boosting component (14) The AC high voltage is transmitted to the secondary boosting component (15), the secondary boosting component (15) is used for converting the AC high voltage into the DC high voltage; the secondary boosting component (15) transmits the DC high voltage to the high voltage output unit (16), the high voltage output unit (16) is used for outputting a DC high voltage to the plasma generator (18), and the plasma generator (18) generates plasma of a corresponding intensity by passing the DC high voltage of the corresponding intensity through ionized air. 2 . The low-temperature plasma generating device with adjustable intensity according to claim 1 , wherein the second interface ( 11 ) on the handle treatment control module ( 3 ) is connected to the bottom core module ( 2 ). 3 . When the interface module 10 establishes a connection, the handle therapy control module (3) sends a connection signal to the feedback acquisition unit (8) on the underlying core module (2), and the processor (7) collects the interface module (10) after receiving the connection signal. The connection state includes connection and disconnection; the processor (7) uploads to the upper computer management system (1) through the communication unit (4), and the upper computer management system (1) prompts the connection state of several first interfaces When the operator sets parameters through the host computer management system (1), the interface module (10) automatically selects and activates the second interface (11) of the connected handle therapy control module (3), when one of the first interfaces is occupied , that is, the connection state is connected; the interface module (10) automatically switches to another first interface. 3 . The low-temperature plasma generating device with adjustable intensity according to claim 1 , wherein the underlying core module ( 2 ) further comprises a main power supply ( 5 ) and a feedback acquisition unit ( 8 ); the feedback acquisition The output end of the unit (8) is connected in communication with the input end of the processor (7), and the feedback acquisition unit (8) is used for collecting the magnitude and the connection state of the interface module (10); the interface module (10) is connected in communication with the feedback acquisition unit (8); The output end of the processor (7) is connected with the input end of the execution mechanism (9), and the execution mechanism (9) executes the control instruction of the processor (7); the control instruction includes selecting the power supply module (6) to generate the corresponding current intensity and the interface module (10) the corresponding first interface; The main power supply (5) is used to provide power for each component on the underlying core module (2); the power supply module (6) is electrically connected to the actuator (9), and the power supply module (6) is used to output voltages of different intensities; the interface module (10) Including a plurality of first interfaces, and each first interface is respectively connected with a handle therapy control module (3); the range of voltages of different intensities is 0 to DC36V. 4. The low-temperature plasma generating device with adjustable intensity according to claim 1, wherein the handle treatment control module (3) further comprises a current acquisition unit (17); the current acquisition unit (17) uses For measuring the high voltage DC discharge current output by the high voltage output unit (16) and transmitting it to the second interface (11), the second interface (11) transmits the measurement of the high voltage DC discharge current output by the high voltage output unit (16) to the interface module (10). 5. The low-temperature plasma generating device with adjustable intensity according to claim 1, wherein the actuator (9) is composed of a photocoupler, a triode, a relay and a bus, and the actuator (9) is composed of a The processing steps are as follows: S1: The processor (7) issues a current intensity command, and selects the corresponding intensity in the power module (6) and outputs it to the bus through photocoupler, triode signal amplification, and relay action; S2: The processor (7) issues an interface output command, and the corresponding interface on the control bus is turned on through the optocoupler, triode, and relay, and the selected current intensity is sent to the interface module (10) for output. 6 . The low-temperature plasma generating device with adjustable intensity according to claim 1 , wherein the first-stage boosting component ( 14 ) converts low-voltage alternating current into high-voltage alternating current through a high-frequency transformer. 7 . The step-up component (15) converts the AC high voltage into the DC high voltage through the voltage doubling rectifier circuit. 7. A low-temperature plasma generating device with adjustable intensity according to claim 1, characterized in that, the plasma generator (18) is used to ionize air in a semi-open cavity by a high-voltage probe and generate plasma.

Images