CN211959066U - Power supply circuit of portable medical instrument and portable medical instrument - Google Patents
Power supply circuit of portable medical instrument and portable medical instrument Download PDFInfo
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- CN211959066U CN211959066U CN202020937996.XU CN202020937996U CN211959066U CN 211959066 U CN211959066 U CN 211959066U CN 202020937996 U CN202020937996 U CN 202020937996U CN 211959066 U CN211959066 U CN 211959066U
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Abstract
The utility model provides a portable medical instrument's supply circuit and portable medical instrument relates to medical instrument technical field. The power supply circuit includes: the device comprises a singlechip, a Universal Serial Bus (USB) interface and a capacitor assembly; the power end of the singlechip is electrically connected with the power end of the USB interface, the data writing end of the singlechip is electrically connected with the positive data end of the USB, and the data reading end of the singlechip is electrically connected with the negative data end of the USB; the capacitor assembly is electrically connected between a power supply end of the USB interface and a grounding end of the singlechip; the first IO end of the single chip microcomputer is electrically connected with medical electric equipment in the portable medical instrument, and the power end of the electric equipment is also connected with the power end of the USB interface. The utility model discloses an in the scheme for terminal equipment can come to supply power to medical electric equipment through the USB interface, has guaranteed that medical electric equipment can normally work, thereby has improved medical instrument's portability.
Description
Technical Field
The utility model relates to the technical field of medical equipment, particularly, relate to a portable medical equipment's supply circuit and portable medical equipment.
Background
In modern society, various electronic medical instruments have entered thousands of households, and some households may have several electronic medical instruments. For example, the power supply voltage generally used by the portable electronic medical apparatus is a low voltage of about 5V, and the maximum is a small current of 500mA, so as to realize functions of personal rehabilitation, treatment and the like. For example, meridian massage devices, middle and low frequency treatment devices, laser rhinitis treatment devices, semiconductor laser treatment devices, tinnitus rehabilitation devices, vision recovery correction devices, red basket light treatment devices and the like, and the electronic medical devices basically comprise a power supply part and a human-computer interaction control and execution part.
At present, the power supply part usually relies on a disposable battery, or adopts a charging data line to realize the power supply of the electronic medical apparatus.
However, according to the prior art, when the electronic medical apparatus is used, the electric quantity of the battery is insufficient or the electronic medical apparatus cannot be charged in time, so that the electronic medical apparatus is shut down, and the portability of the electronic medical apparatus is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a portable medical instrument's supply circuit and portable medical instrument to among the above-mentioned prior art to solve prior art, when using electronic medical instrument outward, the electric quantity that can appear the battery is not enough, perhaps can't in time charge, and leads to this electronic medical instrument to shut down, has the poor problem of portability of electronic medical instrument.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a power supply circuit for a portable medical device; the power supply circuit includes: the device comprises a singlechip, a Universal Serial Bus (USB) interface and a capacitor assembly;
the power end of the single chip microcomputer is electrically connected with the power end of the USB interface, the data writing end of the single chip microcomputer is electrically connected with the positive data end of the USB, and the data reading end of the single chip microcomputer is electrically connected with the negative data end of the USB; the capacitor assembly is electrically connected between a power supply end of the USB interface and a grounding end of the singlechip;
the first IO end of the single chip microcomputer is electrically connected with medical electric equipment in the portable medical instrument, and the power end of the medical electric equipment is further connected with the power end of the USB interface.
Optionally, the number of capacitive components comprises: and a plurality of connecting points after the plurality of capacitor assemblies are connected in parallel are connected between the power supply end of the USB interface and the grounding end of the singlechip.
Optionally, the capacitance values of the different capacitive components are the same or different.
Optionally, the number of the medical electrical equipment is multiple, and the multiple first IO terminals are respectively electrically connected to the multiple control terminals of the medical electrical equipment.
Optionally, the plurality of first IO terminals are IO terminals having a Pulse Width Modulation (PWM) function.
Optionally, the medical powered device comprises an electrode pad; the power supply circuit further includes: the enabling end of the booster circuit is electrically connected with the second IO end of the single chip microcomputer; the driving end of the booster circuit is electrically connected with the first IO end;
the power supply end of the booster circuit is electrically connected with the power supply end of the USB interface, and the output end of the booster circuit is electrically connected with the power supply end of the electrode plate.
Optionally, the power supply circuit further comprises: and a power supply end of the polarity reversing circuit is electrically connected with the output end of the booster circuit, a drive end of the polarity reversing circuit is electrically connected with a third IO end of the single chip microcomputer, and a wire outlet end of the polarity reversing circuit is electrically connected with a power supply end of the electrode plate.
Optionally, the polarity reversing circuit comprises: the power supply ends of the first polarity inversion subcircuit and the second polarity inversion subcircuit are electrically connected with the output end of the voltage boosting circuit;
the driving ends of the first polarity inversion sub-circuit and the second polarity inversion sub-circuit are respectively and electrically connected with two third IO ends of the single chip microcomputer;
the wire outlet ends of the first polarity reversing sub-circuit and the second polarity reversing sub-circuit are respectively and electrically connected with the two power supply ends of the electrode plate.
Optionally, the third IO terminal is a port having a timer function.
In a second aspect, an embodiment of the present invention further provides a portable medical device, including any one of the power supply circuits provided in the first aspect, and a medical electrical device; and the first IO end of the singlechip in the power supply circuit is electrically connected with the medical electric equipment.
The utility model has the advantages that:
the utility model provides a portable medical instrument's supply circuit and portable medical instrument, this supply circuit includes: the device comprises a singlechip, a Universal Serial Bus (USB) interface and a capacitor assembly; the power end of the singlechip is electrically connected with the power end of the USB interface, the data writing end of the singlechip is electrically connected with the positive data end of the USB, and the data reading end of the singlechip is electrically connected with the negative data end of the USB; the capacitor assembly is electrically connected between a power supply end of the USB interface and a grounding end of the singlechip; the first IO end of the single chip microcomputer is electrically connected with medical electric equipment in the portable medical instrument, and the power end of the electric equipment is also connected with the power end of the USB interface. The utility model discloses an in the scheme, through the USB interface that provides, and the medical electric device electricity among the first IO end of singlechip and the portable medical instrument is connected, the power end of USB interface is still connected to the power end of consumer, can make terminal equipment come to supply power to medical electric device through the data line that the USB interface corresponds and this supply circuit like this, and can pass through positive data end and negative data end transmission to the singlechip in the USB interface with the instruction signal that terminal equipment sent, the singlechip is handled the data of receiving, thereby the medical electric device can normally work has been guaranteed, medical instrument's portability has been improved.
In addition, the data writing end of the single chip microcomputer is electrically connected with the positive data end of the USB, the data reading end of the single chip microcomputer is electrically connected with the negative data end of the USB, power supply of the terminal device to the medical instrument can be achieved through the USB interface, various data transmission and exchange functions can be completed, an instruction signal sent by the terminal device is transmitted to the single chip microcomputer through the USB interface, received data are processed through the single chip microcomputer, the medical electric device is controlled, or information monitored by the medical electric device can be uploaded to the terminal device through the USB interface.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram of a power supply circuit of a portable medical device according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a USB data cable and a USB interface of a portable medical device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a USB data cable and USB interface connection of a portable medical device according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a power supply circuit for a portable medical device according to another embodiment of the present invention;
FIG. 5 is a schematic diagram of a power supply circuit for a portable medical device according to another embodiment of the present invention;
FIG. 6 is a schematic diagram of a power supply circuit for a portable medical device according to another embodiment of the present invention;
fig. 7 is a block diagram of a power supply circuit of a portable medical device according to an embodiment of the present invention.
Icon: 100-a power supply circuit; 101-a single chip microcomputer; 102-a USB interface; 103-a capacitive component; 201-address lines; 202-a negative power supply line; 203-a first resistance; 301-a first detection line; 302-a second detection line; 303-a second resistance; 304-a third resistance; 400-laser rhinitis treatment instrument; 401-medical electrical devices; 402-a first capacitance; 403-a second capacitance; 501-electrode slice; 502-a boost circuit; 503-power supply terminal of the booster circuit; 504-power terminal of USB interface; 505-the output of the boost circuit; 506-power supply end of electrode plate; 601-a polarity reversing circuit; 602-RC circuit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a power supply circuit for a portable medical device according to an embodiment of the present invention, and as shown in fig. 1, the power supply circuit 100 includes: a single chip microcomputer 101, a Universal Serial Bus (USB) USB interface 102, and a capacitor component 103.
It should be noted that existing intelligent terminal devices all have an OTG (On-The-Go, ready for use in installation) function, and can ensure connection between different devices, thereby being capable of realizing power supply or data exchange.
In some embodiments, the smart terminal device may include a smartphone, a Personal Digital Assistant (PDA), a navigation device, a tablet computer, a laptop computer, or a built-in device in a motor vehicle, or the like, or any combination thereof, or the like. In some embodiments, the built-in devices in the motor vehicle may include an on-board computer, an on-board television, and the like.
The USB interface 102 involved in the solution of the present application may be any Type of USB interface, such as a Micro USB interface, or a USB Type-C interface. The USB interface 102 in the power supply circuit may be connected to a terminal device through a USB data line corresponding to the interface, so that the terminal device provides power for the medical electrical device connected to the power supply circuit 100 through the power supply circuit, or performs data exchange with the single chip and the terminal device. If the USB interface is a Micro USB interface, the USB data line connected to the USB interface 102 may be a Micro USB data line; if the USB interface is a USB Type C interface, the data line connected to the USB interface can be a USB Type-C data line.
The connection of the USB interface 102 and the corresponding USB data line is explained below in conjunction with a specific example of the USB interface 102. Fig. 2 is a schematic diagram illustrating a USB data cable and a USB interface of a portable medical device according to an embodiment of the present invention; as shown in fig. 2, in the present embodiment, for example, the Micro USB interface 102 is connected to a Micro USB data line, where the Micro USB data line includes: the data line comprises a positive power supply line, a positive data line, a negative power supply line, a negative data line and an address line. The power supply system comprises a positive power line, a negative power line, a ground terminal (GND), a positive Data line, a negative Data line and an address line, wherein the positive power line is connected with a positive electrode terminal (+5V or VCC) of a power supply of the Micro USB interface, the negative power line is connected with the ground terminal (GND) of the Micro USB interface, the positive Data line is connected with a positive Data terminal (Data + or D +) of the Micro USB interface, the negative Data line is connected with a negative Data terminal (Data-or D-) of the Micro USB interface. The high and low levels are transmitted to control a positive Data terminal (Data + or D +) and a negative Data terminal (Data-or D-) to read and write Data.
Specifically, the other end of the address line may be connected to the first negative power line 202 through a first resistor 203, and the first resistor 203 may be 5.1k Ω. Without being limited in particular, the detected external signal is input to the terminal device through the first resistor 203, so that the terminal device can supply power to the medical electric device after acquiring the detected signal.
It can be understood that the address line in the Micro USB interface of the common data line is suspended and not grounded, and the terminal device defaults to the common charging data line after detecting that the address line is suspended. The data line between the address line 201 and the negative power line 202 in series with the first resistor 203 may be referred to as an OTG data line.
FIG. 3 is a schematic diagram of a USB data cable and USB interface connection of a portable medical device according to another embodiment of the present invention; as shown in fig. 3, in the present embodiment, for example, the USB interface 102 may be a schematic diagram of a USB Type-C interface connection structure. Wherein, USBType-C data line includes: four positive power lines, four negative power lines, two positive data lines, two negative data lines, two detection lines and the like. The four positive Data lines are connected with a positive power terminal (+5V or VCC) in the USB Type-C interface, the four negative power lines are connected with a ground terminal (GND) of the USB Type-C interface, the two positive Data lines are connected with the positive Data terminal (Data + or D +) of the USB Type-C interface, the two negative Data lines are connected with the negative Data terminal (Data-or D-) of the USB Type-C interface, and the positive Data terminal (Data + or D +) and the negative Data terminal (Data-or D-) are controlled by sending high and low levels to read and write Data.
Specifically, the first detection line 301(CC1) in the USB Type-C data line is connected to the second resistor 303 via the negative power line, and the third resistor 304 is connected between the second detection line 302(CC2) and the negative power line, the resistance values of the second resistor 303 and the third resistor 304 may be the same or different, in this embodiment, both the second resistor 303 and the third resistor 304 may be 5.1k Ω, which is not specifically limited herein. The USB Type-C data line supports a double-sided pluggable interface, the direction of interface insertion is determined by detecting the second resistor 303 and the third resistor 304, and the power supply mode is controlled. For example, when the first detection line 301 detects that the second resistor 303 is pulled down, the power switch on the corresponding side is turned on, and power is output to the medical electric device. That is, the data line in which the second and third resistors may be connected in series between the two sensing lines and the negative power line, respectively, may be referred to as an OTG data line.
With continued reference to fig. 1, a VCC (Volt Current concentrator) power terminal of the single chip microcomputer is electrically connected to a power terminal of the USB interface, a P3.7 port of a data writing terminal of the single chip microcomputer 101 is electrically connected to a positive data terminal of the USB, and a P3.6 port of a data reading terminal of the single chip microcomputer 101 is connected to a negative data terminal of the USB, so that an instruction can be sent to the medical electrical device through the single chip microcomputer 101 at the USB interface 102 of the terminal device, or data transmitted by the medical electrical device can be received by the terminal device. It should be noted that fig. 1 to 4 illustrate a single chip microcomputer with a USB function as an example, in practical applications, the single chip microcomputer 101 may also be another type of single chip microcomputer with a USB function. If the single chip microcomputer is of other types and has a UBS function, corresponding pin ends on the single chip microcomputer 101 may have slight differences, and the application is not limited symmetrically.
The capacitor assembly 103 is electrically connected between a power supply end of the USB interface and a ground end of the single chip 101, and is configured to filter an interference signal in the power supply circuit 100, so that the power supply circuit 100 has more stable working performance.
Fig. 4 is a schematic diagram of a power supply circuit structure of a portable medical device according to another embodiment of the present invention, as shown in fig. 4, the first IO end of the single chip microcomputer 101 is electrically connected to a medical electrical device 401 of the portable medical device, and a power end of the medical electrical device 401 is further connected to a power end of a USB interface, so as to supply power to the portable medical device through the USB interface, so as to ensure that the portable medical device can normally operate.
In summary, in this embodiment, the utility model provides a portable medical instrument's supply circuit, this supply circuit includes: the device comprises a singlechip, a Universal Serial Bus (USB) interface and a capacitor assembly; the power end of the singlechip is electrically connected with the power end of the USB interface, the data writing end of the singlechip is electrically connected with the positive data end of the USB, and the data reading end of the singlechip is electrically connected with the negative data end of the USB; the capacitor assembly is electrically connected between a power supply end of the USB interface and a grounding end of the singlechip; the first IO end of the single chip microcomputer is electrically connected with medical electric equipment in the portable medical instrument, and the power end of the electric equipment is also connected with the power end of the USB interface. The utility model discloses an in the scheme, through the USB interface that provides, and the medical electric device electricity among the first IO end of singlechip and the portable medical instrument is connected, the power end of USB interface is still connected to the power end of consumer, can make the terminal equipment end supply power to medical electric device through the USB interface like this, it can normally work to have guaranteed medical electric device, the medical electric device of having avoided using outside, the electric quantity of battery can appear not enough, perhaps can't in time charge, and lead to this medical electric device to shut down, thereby medical instrument's portability has been improved.
In the present embodiment, for example, with continued reference to fig. 4, the portable medical device may be a laser rhinitis treatment apparatus 400, which is not limited herein, and with continued reference to fig. 4, by electrically connecting the single chip microcomputer 101 with the power supply terminal VCC of the USB interface, electrically connecting the P3.7 port of the single chip microcomputer 101 with the positive data terminal UD + of the USB, electrically connecting the P3.6 port of the single chip microcomputer 101 with the negative data terminal UD-of the USB, electrically connecting the capacitor assembly 103 between the power supply terminal VCC of the USB interface and the ground terminal GND of the single chip microcomputer 101, and connecting the power supply terminal of the laser rhinitis treatment apparatus 400 with the power supply terminal of the USB interface, so that the terminal device can supply power to the laser rhinitis.
In addition, the first IO end of the singlechip 101 is connected with the power supply of the electric equipment of the laser rhinitis therapeutic apparatus, namely, a sixth resistor R6 is connected between a P1.5 port in the singlechip and the base electrode of a triode Q1, a seventh resistor R7 is connected between a P3.1 port in the singlechip and the base electrode of a triode Q2, then after the functions of timing reminding, treatment time setting, power setting and the like of the terminal equipment, a command signal is transmitted to the singlechip 101 through a positive data end UD + and a negative data end UD-in a USB interface, the singlechip 101 processes received data, a switching signal contained in the command is transmitted to the base electrodes of driving triodes Q1 and Q2 through the sixth resistor R6 and the seventh resistor R7, thereby completing the on-off control of semiconductor laser tubes D1 and D2, the semiconductor tubes are used as treatment parts and inserted into the nasal cavities of patients for treatment process, and the command signal sent by the terminal equipment can be transmitted to the singlechip through the USB interface, and then the received data is processed by the singlechip to control the portable medical appliance.
Optionally, APP (Application) software may be installed in the terminal device, the control data may be sent to the medical instrument through the powerful data calculation and processing functions of the terminal device, meanwhile, various information transmitted from the medical instrument may be processed and then transmitted to the user through the screen and the speaker of the terminal device, or part of the information may be transmitted to the manufacturer through the network as needed, the manufacturer may also control the medical instrument through the network, update the information, and the like, may include functions such as instruction, warning prompt, timing setting, strength setting, timing prompt, forced scrapping, voice, and the like, may also include real-time communication with the manufacturer, and timely obtaining of guidance services of the merchant, and the like.
For example, through data exchange between the APP in the terminal device and the single chip microcomputer, commands such as "start", "stop" and the like to be transmitted to the medical instrument by the APP in the terminal device are transmitted to the single chip microcomputer 101 through the USB interface in a data form, and information such as temperature, working state and the like in the medical instrument can be monitored by the single chip microcomputer 101 and uploaded to the terminal device through the USB interface.
Optionally, the number of capacitive components 103 includes: a plurality of capacitor assemblies 103 are connected in parallel, and then the connection points are connected between the power supply end of the USB interface and the grounding end of the single chip microcomputer.
In this embodiment, with reference to fig. 4, for example, the capacitor assembly 103 may include a first capacitor 402 and a second capacitor 403, and after the first capacitor 402 and the second capacitor 403 are connected in parallel, one end of the first capacitor 402 and the second capacitor is connected to a power supply terminal of the USB interface, and the other end of the first capacitor is connected to a ground terminal between the single chip microcomputer 101, so as to filter a high-frequency signal and a low-frequency signal in the circuit, reduce interference to the power supply circuit 100, and avoid generating an interference pulse signal during power supply.
Optionally, the capacitance values of the different capacitive components are the same or different. For example, the capacitance values of the first capacitor 402 and the second capacitor 403 may be different, the value of the first capacitor 402 may be 10uF, and the capacitance value and the withstand voltage value of the second capacitor 403 may be 0.1uF and 10V, respectively. In other examples, the capacitance values of the first capacitor 402 and the second capacitor 403 may be the same, and are not limited herein. The first capacitor 402 can filter low-frequency interference signals in the power supply circuit 100, and the second capacitor 403 can filter high-frequency interference signals in the power supply circuit 100, so that the operating performance of the power supply circuit 100 is more stable.
Optionally, the number of the medical electrical devices is multiple, and the multiple first IO terminals are respectively electrically connected to the control terminals of the multiple medical electrical devices.
With continued reference to fig. 4, the plurality of first IO terminals may be a P1.5 port, a P3.1 port, a P3.0 port, or the like in the single chip microcomputer 101. That is, any one of the P1.5 port, the P3.1 port, and the P3.0 port in the chip unit 101 may be electrically connected to the control terminal of the medical electric device.
Optionally, a plurality of the first IO terminals are IO terminals having a Pulse Width Modulation (PWM) function.
Fig. 5 is a schematic diagram of a power supply circuit of a portable medical device according to another embodiment of the present invention, and as shown in fig. 5, it can be understood that the structure shown in fig. 5 is only schematic and may include more or fewer components than those shown in fig. 5. The medical electric device comprises an electrode plate 501; the power supply circuit 100 further includes: the boost circuit 502, an enable End (EN) of the boost circuit 502 is electrically connected to a second IO end of the single chip microcomputer, and the second IO end may be any one of a P1.4 port or a P3.2 port in the single chip microcomputer 101; the driving end of the voltage boost circuit 502 is electrically connected to any one of the ports P1.5, P3.1, or P3.0 in the first IO end.
For example, in this embodiment, the enable end of the voltage boost circuit 502 is electrically connected to the P1.4 port in the second IO end of the single chip, and the drive end of the voltage boost circuit 502 may be electrically connected to the P3.1 port in the first IO end, which is not limited herein.
The power end 503 of the booster circuit is electrically connected with the power end 504 of the USB interface, and the output end 505 of the booster circuit is electrically connected with the power supply end 506 of the electrode plate.
In this embodiment, for example, the medical electrical equipment 401 may also be a medium and low frequency therapeutic apparatus, and fig. 5 is a circuit structure diagram of the medium and low frequency therapeutic apparatus provided in this embodiment.
Fig. 6 is a schematic structural diagram of a power supply circuit of a portable medical device according to another embodiment of the present invention, and as shown in fig. 6, the power supply circuit 100 further includes: the power supply end 601 of the polarity reversing circuit is electrically connected with the output end of the voltage boosting circuit 502, the driving end KA or KB of the polarity reversing circuit 601 is electrically connected with any one port of P3.4 or P3.5 in the third IO end of the single chip microcomputer, and the outlet end of the polarity reversing circuit 601 is electrically connected with the power supply end of the electrode plate 501.
Alternatively, the polarity reversing circuit 601 includes: the power supply terminals of the first polarity-inverting subcircuit and the second polarity-inverting subcircuit are electrically connected with the output terminal of the voltage-boosting circuit 502;
the driving ends of the first polarity inversion sub-circuit and the second polarity inversion sub-circuit are respectively and electrically connected with two third IO ends of the single chip microcomputer;
the wire outlet ends of the first polarity reversing sub-circuit and the second polarity reversing sub-circuit are respectively and electrically connected with two power supply ends of the electrode plate.
In the present embodiment, for example, the portable medical device is a medium-low frequency therapeutic apparatus, and it can be understood that the medium-low frequency therapeutic apparatus adopts circuit control to output modulated or micro-modulated medium-low frequency current, and corresponding therapeutic programs are designed according to different requirements.
Specifically, with reference to fig. 5 and fig. 6, in the working process of the middle-low frequency therapeutic apparatus, the enable terminal EN of the voltage boost circuit 502 is connected to the P1.4 port of the second IO terminal of the single chip microcomputer, the power terminal 503 of the voltage boost circuit is electrically connected to the power terminal 504 of the USB interface, and the voltage boost circuit 502 starts to perform voltage boost processing when the enable terminal EN outputs a signal, the drive terminal DA of the voltage boost circuit 502 is electrically connected to the P3.1 port of the first IO terminal of the single chip microcomputer, and the dc voltage signal is output after the PWM signal output by the drive terminal DA is processed by the RC circuit 602.
It should be noted that the duty ratio of the PWM signal is adjustable, and the dc voltage signal output by the RC circuit 602 can be adjusted by setting the power strength signal at the terminal device, and the step-up amplitude is controlled to adapt to different patient's experiences.
The signal output by the RC circuit 602 is input to the inverting input terminal of the proportional operation unit, the electric signal boosted by the voltage boost circuit 502 is fed back to the inverting input terminal of the proportional operation amplifier through the light emitting diode D3 and the resistor R13, and the output signal of the output terminal of the proportional operation unit is input to the boost chip pin of the voltage boost circuit 502 to adjust the boost signal, so that the output voltage is more stable.
The output terminal 505 of the booster circuit is electrically connected to the power supply terminal 506 of the electrode sheet, and supplies power to the electrode sheet 501.
In addition, the power supply terminal 601 of the polarity reversing circuit is electrically connected with the output terminal of the voltage boosting circuit 502, the driving terminal KA of the polarity reversing circuit 601 is electrically connected with the P3.4 port in the third IO terminal of the single chip microcomputer, the driving terminal KB of the polarity reversing circuit 601 is electrically connected with the P3.5 port, the polarity reversing circuit 601 comprises a first polarity reversing sub-circuit and a second polarity reversing sub-circuit, and the power supply terminals of the first polarity reversing sub-circuit and the second polarity reversing sub-circuit are both electrically connected with the output terminal of the voltage boosting circuit 502.
When the P3.4 port in the third IO end of the single chip outputs a high level and the P3.5 port outputs a low level, and the driving end KA of the polarity inversion circuit 601 receives a high level signal, the transistors Q8, Q6, and Q5 are turned on, and output signals to the electrode plate 501, flow into the first end from the second end in the electrode plate 501, and are output to the ground end.
When the P3.5 port in the third IO terminal of the single chip outputs a high level and the P3.4 port outputs a low level, and the driving terminal KB terminal of the polarity inversion circuit 601 receives a high level signal, the transistors Q3, Q4, and Q7 are turned on, and output signals to the electrode pad 501, flow into the second terminal from the first terminal in the electrode pad 501, and output to the ground terminal. Therefore, the first polarity inverting sub-circuit and the second polarity inverting sub-circuit can alternately output conducting signals, a voltage field with the modulated medium-low frequency and peak-to-peak amplitude being two times of the voltage value can be obtained at the output end of the electrode plate 501, and the generated voltage field acts on the local skin of a patient needing treatment through the electrode plate to carry out related treatment.
Optionally, the third IO terminal is a port having a timer function.
In this embodiment, the first polarity inverting sub-circuit and the second polarity inverting sub-circuit can be controlled to alternately output the conducting signal through the timer function of the third IO terminal, so that a voltage field with modulated medium and low frequency and peak-to-peak amplitude twice as large as a voltage value can be obtained at the output end of the electrode plate, and the generated voltage field acts on the local skin of the patient to be treated through the electrode plate to perform related treatment.
Fig. 7 is a block diagram of a power supply circuit of a portable medical device according to an embodiment of the present invention, and as shown in fig. 7, the present invention further provides a portable medical device including any one of the power supply circuits provided in the above embodiments, and a medical electrical device; and a first IO end of the singlechip in the power supply circuit is electrically connected with the medical electric equipment.
Wherein, portable medical instrument includes: a power supply circuit 100 and a medical electrical device 401. Optionally, the first IO terminal of the chip microcomputer 101 in the power supply circuit is electrically connected to the medical electrical device 401.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power supply circuit for a portable medical device, the power supply circuit comprising: the device comprises a singlechip, a Universal Serial Bus (USB) interface and a capacitor assembly;
the power end of the single chip microcomputer is electrically connected with the power end of the USB interface, the data writing end of the single chip microcomputer is electrically connected with the positive data end of the USB, and the data reading end of the single chip microcomputer is electrically connected with the negative data end of the USB; the capacitor assembly is electrically connected between a power supply end of the USB interface and a grounding end of the singlechip;
the first IO end of the single chip microcomputer is electrically connected with medical electric equipment in the portable medical instrument, and the power end of the electric equipment is further connected with the power end of the USB interface.
2. The power supply circuit of claim 1, wherein the number of capacitive components comprises: and a plurality of connecting points after the plurality of capacitor assemblies are connected in parallel are connected between the power supply end of the USB interface and the grounding end of the singlechip.
3. The power supply circuit of claim 2, wherein the capacitance values of different capacitive components are the same or different.
4. The power supply circuit according to claim 1, wherein the number of the medical electric devices is plural, and the plurality of first IO terminals are electrically connected to control terminals of the plurality of electric devices, respectively.
5. The power supply circuit according to claim 4, wherein the plurality of first IO terminals are all IO terminals having a Pulse Width Modulation (PWM) function.
6. The power supply circuit of claim 1, wherein the medical electrical device comprises an electrode pad; the power supply circuit further includes: the enabling end of the booster circuit is electrically connected with the second IO end of the single chip microcomputer; the driving end of the booster circuit is electrically connected with the first IO end;
the power supply end of the booster circuit is electrically connected with the power supply end of the USB interface, and the output end of the booster circuit is electrically connected with the power supply end of the electrode plate.
7. The power supply circuit of claim 6, further comprising: and a power supply end of the polarity reversing circuit is electrically connected with the output end of the booster circuit, a drive end of the polarity reversing circuit is electrically connected with a third IO end of the single chip microcomputer, and a wire outlet end of the polarity reversing circuit is electrically connected with a power supply end of the electrode plate.
8. The power supply circuit of claim 7, wherein the polarity reversing circuit comprises: the power supply ends of the first polarity inversion subcircuit and the second polarity inversion subcircuit are electrically connected with the output end of the voltage boosting circuit;
the driving ends of the first polarity inversion sub-circuit and the second polarity inversion sub-circuit are respectively and electrically connected with two third IO ends of the single chip microcomputer;
the wire outlet ends of the first polarity reversing sub-circuit and the second polarity reversing sub-circuit are respectively and electrically connected with the two power supply ends of the electrode plate.
9. The power supply circuit according to claim 7, wherein the third IO terminal is a port having a timer function.
10. A portable medical device comprising the power supply circuit of any one of claims 1-9 and an electrical medical device; and the first IO end of the singlechip in the power supply circuit is electrically connected with the medical electric equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937996.XU CN211959066U (en) | 2020-05-28 | 2020-05-28 | Power supply circuit of portable medical instrument and portable medical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020937996.XU CN211959066U (en) | 2020-05-28 | 2020-05-28 | Power supply circuit of portable medical instrument and portable medical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211959066U true CN211959066U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020937996.XU Active CN211959066U (en) | 2020-05-28 | 2020-05-28 | Power supply circuit of portable medical instrument and portable medical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211959066U (en) |
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2020
- 2020-05-28 CN CN202020937996.XU patent/CN211959066U/en active Active
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