CN219595616U - Portable wearable directional drug permeation instrument circuit - Google Patents
Portable wearable directional drug permeation instrument circuit Download PDFInfo
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- CN219595616U CN219595616U CN202320244144.6U CN202320244144U CN219595616U CN 219595616 U CN219595616 U CN 219595616U CN 202320244144 U CN202320244144 U CN 202320244144U CN 219595616 U CN219595616 U CN 219595616U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to the technical field of medical equipment, in particular to a portable wearable directional drug permeation instrument circuit, which comprises a main control circuit, a lithium battery boosting power supply system working power supply circuit, a lithium battery boosting power supply pulse output power supply circuit, a display lamp circuit, a prompt tone circuit, an output control circuit, a lithium battery charging management circuit, a lithium battery electric quantity detection circuit part and a switch function key, wherein electrodes in the output control circuit are used for contacting a human body for skin resistance detection during measurement, and the switch function key is used for completing the directional drug permeation function after being matched with equipment to be worn at a use position, so that the problems of large size, heavy weight, difficult movement and use limitation of external network power are solved, and convenience is provided for operators and users.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a portable wearable directional drug permeable instrument circuit.
Background
The existing directional drug permeation instrument is mostly clinically used in a table or trolley mode, and the table type and trolley type device has the defects that firstly, the size is relatively large, and the device occupies a large space when used in a clinical mechanism. 2. The device has the advantages of large weight, difficult movement, inconvenience in developing multiple departments in hospitals and easy damage in the moving process. 3. The use condition is limited, and the external stable network power supply or the connecting ground wire is needed for use, so that the clinical work is not facilitated. 4. The production and manufacturing costs are high, and the costs of manpower, materials, storage and transportation are high.
Disclosure of Invention
The utility model aims to provide a portable wearable directional drug permeation instrument circuit, which is powered by a lithium battery, and can complete the directional drug permeation function only by simply setting the function after the equipment is worn at a use position, thereby solving the problem of inconvenient use of the conventional directional drug permeation instrument.
In order to achieve the above purpose, the utility model provides a portable wearable directional drug permeation instrument circuit, which comprises a main control circuit, a lithium battery boosting power supply system working power supply circuit, a lithium battery boosting power supply pulse output power supply circuit, a display lamp circuit, a prompt tone circuit, an output control circuit, a lithium battery charging management circuit, a lithium battery power detection circuit part and a switch function key, wherein the lithium battery boosting power supply system working power supply circuit, the lithium battery boosting power supply pulse output power supply circuit, the display lamp circuit, the prompt tone circuit, the output control circuit, the lithium battery charging management circuit, the lithium battery power detection circuit part and the switch function key are respectively and electrically connected with the output of each foot of the main control circuit.
The main control circuit comprises a singlechip U2 and a power supply filter capacitor C2, wherein one end of the power supply filter capacitor C2 is connected with a 10 pin of the singlechip U2, and the other end of the power supply filter capacitor C2 is connected with a 5V power supply.
The lithium battery boosting power supply circuit comprises an inductor L2, a Schottky diode D8, a power supply conversion control chip U3, resistors R12 and R13 and capacitors C5, C6 and C7; one end of the capacitor C5 is connected with the lithium battery power VCC, the other end of the capacitor C5 is connected with GND, one end of the inductor L2 is connected with the 4 pin and the 5 pin of the power conversion control chip U3 respectively, the other end of the inductor L2 is connected with the 1 pin of the power conversion control chip U3, the output of the inductor L2 is connected with the Schottky diode D8 and is output to the 5V power supply, the capacitor C7 is connected with the resistor R13 in series and then is connected with the resistor R12 and the capacitor C6 in parallel respectively, one end of the parallel circuit is connected with the 5V power supply, and the other end of the parallel circuit is connected with the 3 pin of the chip U3.
The lithium battery boosting power supply pulse output power supply circuit comprises an inductor L1, a Schottky diode D3, a power supply conversion control chip U1, resistors R6 and R7 and capacitors C1, C3 and C4; the structure of the lithium battery boosting power supply pulse output power supply circuit is similar to that of the lithium battery boosting power supply system working power supply circuit, one end of a capacitor C1 is connected with a lithium battery power supply VCC, the other end of the capacitor C1 is connected with GND, one end of an inductor L1 is respectively connected with a 4 pin and a 5 pin of a power supply conversion control chip U1, the other end of the inductor L1 is connected with a 1 pin of the power supply conversion control chip U1, the output of the inductor L1 is connected with a Schottky diode D3 and is output to a 12V power supply, after the capacitor C4 is connected with a resistor R7 in series, the capacitor C4 is respectively connected with a resistor R6 and the capacitor C3 in parallel, one end of the parallel circuit is connected with the 12V power supply, and the other end of the inductor L1 is connected with a 3 pin of the chip U1.
The display lamp circuit comprises LED lamps D4, D5, D6, D7 and D9, resistors R8, R9, R10, R11, R15 and R16; the LED lamp D4 is connected with the resistor R8 in series and then connected with the 1 pin of the single-chip microcomputer U2, the D5 is connected with the R9 in series and then connected with the 17 pin of the single-chip microcomputer U2, the D6 is connected with the R10 in series and then connected with the 20 pin of the single-chip microcomputer U2, the D7 is connected with the R11 in series and then connected with the 19 pin of the single-chip microcomputer U2, wherein the LED lamp D9 is a red-green double-color LED lamp which is respectively connected with the resistor R15 in series and then connected with the 2 pin of the single-chip microcomputer U2, and is connected with the R16 in series and then connected with the 3 pin of the single-chip microcomputer U2.
The prompting sound circuit comprises a passive buzzer LS1, a driving triode Q4 and a resistor R20, wherein the transmitting end of the driving triode Q4 is connected with GND, the C collector is connected with the passive buzzer LS1, and the B base set is connected with the resistor R20 in series and then connected with the 4 pins of the singlechip U2.
The output control circuit comprises a constant current control circuit, a skin resistance value detection circuit and an antistatic circuit, wherein the constant current control circuit is connected to the 5 pin of the single-chip microcomputer U2, the skin resistance value detection circuit is connected to the 16 pin of the single-chip microcomputer U2, and the antistatic circuit is connected with the P2 electrode of the skin resistance value detection circuit.
The lithium battery charging management circuit comprises a Type-C interface J2, a diode D10, a current limiting resistor R22, a charging current control resistor R25, a filter capacitor C8, a filter capacitor C9 and a charging management chip U5;
the input end of the diode D10 is respectively connected with the VBUS end of the Type-C interface J2 and the 4 pin of the charge management chip U5, one end of the filter capacitor C8 is connected with the 1 pin of the charge management chip U5, the other end of the filter capacitor C8 is connected with GND, the current limiting resistor R22 is connected with the 1 pin of the charge management chip U5, the charge current control resistor R25 is connected with the 5 pin of the charge management chip U5, and the filter capacitor C9 is connected with the 3 pin of the charge management chip U5.
The lithium battery electric quantity detection circuit part and the switch function key are connected with the single-chip microcomputer U2 through 6 pins and 13 pins of the single-chip microcomputer U2 respectively.
The utility model provides a portable wearable directional drug permeation instrument circuit, which comprises a main control circuit, a lithium battery boosting power supply system working power supply circuit, a lithium battery boosting power supply pulse output power supply circuit, a display lamp circuit, a prompt tone circuit, an output control circuit, a lithium battery charging management circuit, a lithium battery electric quantity detection circuit part and a switch function key, wherein electrodes in the output control circuit are used for contacting a human body to detect skin resistance values during measurement, and the switch function key is used for completing the directional drug permeation function after being worn at a use position in cooperation with equipment, so that the problems of large volume, heavy weight, difficult movement and use limitation of external network power are solved, and convenience is provided for operators and users.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the connection structure of the main control circuit of the present utility model.
Fig. 2 is a schematic diagram of a connection structure of a power supply circuit for a lithium battery boosting power supply system according to the present utility model.
Fig. 3 is a schematic diagram of a connection structure of a lithium battery boost power supply pulse output power supply circuit of the present utility model.
Fig. 4 is a schematic diagram of the connection structure of the display lamp circuit of the present utility model.
Fig. 5 is a schematic diagram of a connection structure of the alert sound circuit of the present utility model.
Fig. 6 is a schematic diagram of a connection structure of the output control circuit of the present utility model.
Fig. 7 is a schematic diagram of a connection structure of the lithium battery charge management circuit of the present utility model.
Fig. 8 is a schematic diagram of a connection structure of a lithium battery power detection circuit part and a switch function key of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
Referring to fig. 1 to 8, the utility model provides a portable wearable directional drug permeation instrument circuit, which comprises a main control circuit, a lithium battery boosting power supply system working power supply circuit, a lithium battery boosting power supply pulse output power supply circuit, a display lamp circuit, a prompt tone circuit, an output control circuit, a lithium battery charging management circuit, a lithium battery electric quantity detection circuit part and a switch function key.
The following description is made in connection with specific chip types and component specifications:
1. the main control circuit, as shown in FIG. 1, mainly comprises a single chip microcomputer U2-STC8G1K08 and a power supply filter capacitor C2-100nf, wherein the single chip microcomputer U2 has serial port communication, ADC analog signal to digital signal processing, logic high and low level input detection and logic high and low level output capability. The C2 power supply filter capacitor can filter ripple waves existing in the power supply of the control system, and provides clean and stable power supply for the system.
2. Lithium battery boosting power supply circuit for system
Referring to fig. 2, the lithium battery power VCC boosts the voltage to 5V through a boost circuit, providing a stable operating power for the system.
C5-100nf is input end power supply filter capacitor, L2-3.3uH inductance is energy storage and release energy function, D8-MBR0530 is schottky diode, U3-TPS61040 is power supply conversion control chip, resistors R12-620KΩ and R13-200KΩ form a voltage feedback loop, and the value of output voltage can be adjusted by adjusting the values of the resistors R12 and R13. C6-4.7pF is feedforward capacitor, which can reduce ripple of output voltage. C7-1uF output voltage filter capacitor.
3. Lithium battery boosting power supply pulse output power supply circuit
Referring to fig. 3, the lithium battery power VCC boosts the voltage to 12V through a boost circuit, providing an operating voltage for the electrical pulse output.
C1-4.7uf is input capacitance, can filter lower frequency ripple, and energy storage simultaneously, L1-3.3uH inductance is energy storage and release energy function, D3-MBR0530 is schottky diode, U1-TPS61040 is power conversion control chip, and voltage feedback loop is constituteed to resistance R6-1.8MΩ and R7-200KΩ, and the value of adjustable output voltage of the value of regulating resistance R6, R7. C3-4.7pF is feedforward capacitor, which can reduce ripple of output voltage. The C4-4.7uF outputs voltage filter capacitance while storing energy.
4. Display lamp circuit
Referring to fig. 4, the electric quantity display LED circuit is composed of four LEDs D4, D5, D6 and D7, wherein R8, R9, R10 and R11 are corresponding current limiting resistors, and the single-chip microcomputer is used for controlling the high-low level change of the network of LEDs 3, 4, 5 and 6 to realize the display of different battery electric quantities; the status indicator lamp D9 is a red-green double-color LED lamp, and three different colors, namely red, green and orange, can be respectively displayed through double-color lamp combination. R15 and R16 are corresponding current limiting resistors, and the singlechip is used for realizing indication display of different states by controlling the LED1 and LED2 networks.
5. Prompt tone circuit
Referring to fig. 5, the alert tone is composed of a passive buzzer LS1, a driving triode Q4-SS8050, and a current limiting resistor R20-100deg.C, wherein the singlechip control system controls the BEEP interface, outputs a PWM signal with frequency of 2700-4000 Hz, and can make the Q4 repeatedly switch, and the LS1 is rapidly switched between on and off, thereby generating the alert tone.
6. Output control circuit
Referring to fig. 6, the output control circuit mainly comprises a constant current control circuit, a skin resistance detection circuit, and an antistatic circuit. The interface shows that PWM is a square wave signal of a singlechip control output switch, outPutADC is a skin resistance detection point, and is connected with a singlechip analog-to-digital conversion processor, P2 is an anode which contacts human skin, and P3 is a cathode which contacts human skin.
The constant current control circuit consists of R14-1KΩ, U4A-LM358, R18-100deg.OMEGA, Q3-SS8050, and R21-33KΩ. Q3 can be controlled to be turned on or turned off by adjusting PWM high-low level change, and constant current can be controlled by adjusting R21.
The skin resistance detection circuit consists of R17-100KΩ and R19-150KΩ, electrodes P2 and P3 are contacted with human body, triode Q3 is started, the circuit is in a working state, the OutPutADC voltage value is detected at the moment, the voltage values of the electrodes P2 to P3 are calculated through an analog-digital converter, and then the resistance value between the electrodes P2 to P3 is calculated, namely the resistance value between the electrodes contacting the skin.
The antistatic circuit consists of a current limiting resistor R23-10Ω, a current limiting resistor R24-10Ω, a transient suppression diode D12-SMF15CA, a transient suppression diode D13-SMF15C and a transient suppression diode D15-SMF15 CA; when P2 contacts with electrostatic positive charge, a large amount of positive charge is discharged to GND through D11, a small amount of positive charge flows to a 12V power supply through R23, and the stability of the power supply can be effectively ensured while the electrostatic positive charge is absorbed due to the existence of R23 resistance current limiting. When P2 contacts with electrostatic negative charge, namely P2 has small potential GND and 12V, current flows out from GND and 12V, and no damage is caused to a circuit; when P3 contacts an electrostatic positive charge, P3 potential is higher than 12V and GND, and the instantaneous high-voltage current is absorbed by GND and 12V through D12 and D13. When P3 contacts negative charge, P3 potential is lower than 12V and GND, and current flows from GND, 12V to P3 through D12 and D13 without damage to the circuit.
7. Lithium battery charging management circuit
Referring to fig. 7, the charge management circuit is composed of a Type-C interface J2, a diode D10, a current limiting resistor R22, a charge current control resistor R25, a filter capacitor C8, a filter capacitor C9, and a charge management chip U5-XC 5071;
when the power adapter is connected to the J2 interface, if the system is not started, the current is supplied to the system through D10, and the system is automatically started. If the U5 is in a charging working state, the pin 1 of the U5 outputs a low level, and the singlechip judges whether the U5 is in the charging state or not by detecting the output high and low level and displays a prompt through the LED lamp. The maximum charging current can be adjusted by adjusting the resistance value of R25, and when the resistance value of R25 is 2KΩ, the maximum charging current is 500mA.
8. Switch function key and lithium battery electric quantity detection circuit
Referring to fig. 8, the interface description and the network description: the P1 interface is a lithium battery power supply interface, and P1-1 is connected with the anode of the lithium battery and P1-2 is connected with the cathode; lionADC is connected into the single chip ADC analog-to-digital converter; the KEY is connected to a weak pull-up IO port of the singlechip; the PWR is connected to a push-pull output IO port of the singlechip; VCC is the power supply of the lithium battery after being connected; GND is connected to the negative electrode of the lithium battery and the system ground;
the switch key function is realized: when the switch S1 is pressed in the off state, current passes through R2, D2 and S1 to the ground, the grid electrode of the Q1-PMOS is pulled down, the Q1 is in the on state, the lithium battery power supply supplies power to the system, the singlechip control system controls the PWR to output high level after starting, so that the Q2-NPN triode is in the on state, and the grid electrode of the Q1-PMOS is in low level. When the switch key is released, the grid electrode of the Q1 is locked, and the power supply can be continuously provided for the system for low level, so that the power-on is successful;
the KEY is set to be in a weak pull-up mode, the KEY is set to be in a high level before being pressed, the diode D1 is in one-way conduction after being pressed by the KEY S1, so that the KEY is set to be in a low level, at the moment, the singlechip reads the KEY state, after judging that the KEY S1 is pressed for a certain time, the PWR interface is set to be in a low level, the Q2 triode is closed, the Q1-PMOS grid is in a high level when the KEY is released, the Q1 is in a closed state, no power is supplied to the system, and the shutdown is successful.
Function key: in the on state, the KEY S1 is not pressed, at this time, the KEY is set to be weakly pulled up, and in the high level state, when the KEY S1 is pressed, the D1 diode is turned on unidirectionally, and the KEY port is set to be low level. When KEY S1 is released, the D1 diode turns off and KEY is reset high. The singlechip processes corresponding KEY functions by detecting the change of the high and low levels of the KEY.
The lithium battery electric quantity detection circuit comprises: the input end P1 of the lithium battery is connected to a single-chip microcomputer LionADC analog-to-digital converter through R1-200KΩ, and the voltage of the current lithium battery is calculated and output through the analog-to-digital converter and converted into the electric quantity percentage of the current lithium battery. The main role R1 assumes is to deliver voltage and current limiting.
The above disclosure is only a preferred embodiment of the present utility model, and it should be understood that the scope of the utility model is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures described above can be performed according to the equivalent changes of the claims, and still fall within the scope of the present utility model.
Claims (9)
1. A portable wearable directional drug permeation instrument circuit is characterized in that,
the lithium battery boost power supply system comprises a main control circuit, a lithium battery boost power supply system working power supply circuit, a lithium battery boost power supply pulse output power supply circuit, a display lamp circuit, a prompt tone circuit, an output control circuit, a lithium battery charging management circuit, a lithium battery electric quantity detection circuit part and a switch function key.
2. The portable wearable directional drug delivery apparatus circuit of claim 1,
the main control circuit comprises a singlechip U2 and a power supply filter capacitor C2, one end of the power supply filter capacitor C2 is connected with a 10 pin of the singlechip U2, and the other end of the power supply filter capacitor C2 is connected with a 5V power supply.
3. The portable wearable directional drug delivery apparatus circuit of claim 1,
the lithium battery boosting power supply system working power supply circuit comprises an inductor L2, a Schottky diode D8, a power supply conversion control chip U3, resistors R12 and R13 and capacitors C5, C6 and C7; one end of the capacitor C5 is connected with the lithium battery power VCC, the other end of the capacitor C5 is connected with GND, one end of the inductor L2 is connected with the 4 pin and the 5 pin of the power conversion control chip U3 respectively, the other end of the inductor L2 is connected with the 1 pin of the power conversion control chip U3, the output of the inductor L2 is connected with the Schottky diode D8 and is output to the 5V power supply, the capacitor C7 is connected with the resistor R13 in series and then is connected with the resistor R12 and the capacitor C6 in parallel respectively, one end of the parallel circuit is connected with the 5V power supply, and the other end of the parallel circuit is connected with the 3 pin of the chip U3.
4. The portable wearable directional drug delivery apparatus circuit of claim 3,
the lithium battery boosting power supply pulse output power supply circuit comprises an inductor L1, a Schottky diode D3, a power supply conversion control chip U1, resistors R6 and R7 and capacitors C1, C3 and C4; the structure of the lithium battery boosting power supply pulse output power supply circuit is similar to that of the lithium battery boosting power supply system working power supply circuit, one end of a capacitor C1 is connected with a lithium battery power supply VCC, the other end of the capacitor C1 is connected with GND, one end of an inductor L1 is respectively connected with a 4 pin and a 5 pin of a power supply conversion control chip U1, the other end of the inductor L1 is connected with a 1 pin of the power supply conversion control chip U1, the output of the inductor L1 is connected with a Schottky diode D3 and is output to a 12V power supply, after the capacitor C4 is connected with a resistor R7 in series, the capacitor C4 is respectively connected with a resistor R6 and the capacitor C3 in parallel, one end of the parallel circuit is connected with the 12V power supply, and the other end of the inductor L1 is connected with a 3 pin of the chip U1.
5. The portable wearable directional drug delivery apparatus circuit of claim 4,
the display lamp circuit comprises LED lamps D4, D5, D6, D7 and D9, resistors R8, R9, R10, R11, R15 and R16; the LED lamp D4 is connected with the resistor R8 in series and then connected with the 1 pin of the single-chip microcomputer U2, the D5 is connected with the R9 in series and then connected with the 17 pin of the single-chip microcomputer U2, the D6 is connected with the R10 in series and then connected with the 20 pin of the single-chip microcomputer U2, the D7 is connected with the R11 in series and then connected with the 19 pin of the single-chip microcomputer U2, wherein the LED lamp D9 is a red-green double-color LED lamp which is respectively connected with the resistor R15 in series and then connected with the 2 pin of the single-chip microcomputer U2, and is connected with the R16 in series and then connected with the 3 pin of the single-chip microcomputer U2.
6. The portable wearable directional drug delivery apparatus circuit of claim 1,
the prompting sound circuit comprises a passive buzzer LS1, a driving triode Q4 and a resistor R20, wherein the transmitting end of the driving triode Q4 is connected with GND, the C collector is connected with the passive buzzer LS1, and the B base set is connected with the resistor R20 in series and then connected with the 4 pins of the singlechip U2.
7. The portable wearable directional drug delivery apparatus circuit of claim 1,
the output control circuit comprises a constant current control circuit, a skin resistance value detection circuit and an antistatic circuit, wherein the constant current control circuit is connected with the 5 pin of the single chip microcomputer U2, the skin resistance value detection circuit is connected with the 16 pin of the single chip microcomputer U2, and the antistatic circuit is connected with the P2 electrode of the skin resistance value detection circuit.
8. The portable wearable directional drug delivery apparatus circuit of claim 1,
the lithium battery charging management circuit comprises a Type-C interface J2, a diode D10, a current limiting resistor R22, a charging current control resistor R25, a filter capacitor C8, a filter capacitor C9 and a charging management chip U5;
the input end of the diode D10 is respectively connected with the VBUS end of the Type-C interface J2 and the 4 pin of the charge management chip U5, one end of the filter capacitor C8 is connected with the 1 pin of the charge management chip U5, the other end of the filter capacitor C8 is connected with GND, the current limiting resistor R22 is connected with the 1 pin of the charge management chip U5, the charge current control resistor R25 is connected with the 5 pin of the charge management chip U5, and the filter capacitor C9 is connected with the 3 pin of the charge management chip U5.
9. The portable wearable directional drug delivery apparatus circuit of claim 1,
the lithium battery electric quantity detection circuit part and the switch function key are respectively connected with the singlechip U2 through 6 pins and 13 pins of the singlechip U2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244144.6U CN219595616U (en) | 2023-02-17 | 2023-02-17 | Portable wearable directional drug permeation instrument circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320244144.6U CN219595616U (en) | 2023-02-17 | 2023-02-17 | Portable wearable directional drug permeation instrument circuit |
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| Publication Number | Publication Date |
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| CN219595616U true CN219595616U (en) | 2023-08-29 |
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| CN202320244144.6U Active CN219595616U (en) | 2023-02-17 | 2023-02-17 | Portable wearable directional drug permeation instrument circuit |
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| CN (1) | CN219595616U (en) |
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