CN211050504U - Dropping speed detecting instrument - Google Patents
Dropping speed detecting instrument Download PDFInfo
- Publication number
- CN211050504U CN211050504U CN201921703440.8U CN201921703440U CN211050504U CN 211050504 U CN211050504 U CN 211050504U CN 201921703440 U CN201921703440 U CN 201921703440U CN 211050504 U CN211050504 U CN 211050504U
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- circuit
- chip microcomputer
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- single chip
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- 238000001514 detection method Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000001802 infusion Methods 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 32
- 239000013078 crystal Substances 0.000 claims description 18
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 206010067484 Adverse reaction Diseases 0.000 abstract description 2
- 230000006838 adverse reaction Effects 0.000 abstract description 2
- 230000000857 drug effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a dropping speed detecting instrument, which comprises a dropper, wherein the dropper is provided with a detecting instrument, and the detecting instrument comprises a display screen, a key and an alarm; the single chip microcomputer system in the detection instrument is respectively connected with the liquid level sensor, the display screen, the alarm, the key circuit, the real-time clock circuit, the infusion dripping speed detection circuit and the power circuit, and the detection instrument is connected in a clamping manner; the utility model discloses can realize counting the dropping liquid in the burette and show through the display screen, if there is the liquid that special dropping speed required, guarantee the drug effect and avoid the adverse reaction, accurate science again simultaneously.
Description
Technical Field
The utility model relates to a drip speed detecting instrument belongs to and detects technical field.
Background
Drip infusion is a common medical mode, different patients 'sick conditions can be through drip mode infusion medicine, the only difference is different drip flow rate control, danger can be avoided appearing in scientific and reasonable's drip flow rate, can effectively let the patient feel comfortable simultaneously, also alleviates nurse operating procedure.
However, most of the drip infusions in hospitals adopt pulley-type drip infusion, the drip infusion has no detection function, the drip speed of the drip infusion cannot be detected, and if the drip speed is abnormal, the drip speed cannot be timely known, so that potential safety hazards exist; secondly, the dripping speed can not be visually displayed for medical care personnel or patients, and the time of infusion can not be estimated.
Disclosure of Invention
The utility model discloses a solve traditional infusion bit and can't realize functions such as detection, demonstration and warning, provide a fast detecting instrument drips.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
dripping speed detecting instrument, including the burette, its characterized in that: a detection instrument is arranged on the dropper, and the detection instrument comprises a display screen, a key and an alarm; a single chip microcomputer system in the detection instrument is respectively connected with a liquid level sensor, a display screen, an alarm, a key circuit, a real-time clock circuit, an infusion dripping speed detection circuit and a power circuit, and the detection instrument is connected in a clamp mode.
Preferably, the liquid level sensor is used for detecting whether liquid exists or not, a capacitive TC301D liquid detection chip is adopted, a 5 th pin of the liquid level sensor is an induction antenna port, a 6 th pin of the liquid level sensor is output, R5 is a pull-up resistor, and an output signal is sent to the single chip microcomputer P3.3 for processing.
Preferably, the infusion dropping speed detection circuit adopts an L M393 double-voltage comparator integrated circuit, D1 is an infrared emitting diode, D2 is an infrared receiving diode, and 1-pin output data of L M393 is sent to a P3.2 port of the singlechip for processing.
Preferably, the display screen adopts an O L ED liquid crystal display screen, adopts direct current 5V power supply, and 3 and 4 pins are data ports and correspond to the communication of the single chip microcomputer P0.0 and P0.1.
Preferably, the single chip microcomputer system comprises a clock circuit and a reset circuit, the clock circuit is composed of a crystal oscillator Y2, a capacitor C13 and a capacitor C14, the crystal oscillator Y2 provides a 12Mhz clock signal for the single chip microcomputer, and the capacitor C13 and the capacitor C14 assist the crystal oscillator to rapidly start oscillation and stabilize the clock frequency; the capacitor C8, the resistor R7 and the reset S1 form a singlechip reset circuit.
Preferably, the real-time clock circuit adopts DS1302 as a real-time clock chip, and further includes a crystal oscillator Y1, a capacitor C6, a capacitor C7, a backup battery BT1, and RP3 as a pull-up single chip microcomputer, and the clock chip communicates with three IO ports, i.e., P3.4, P3.5, and P3.6, of the single chip microcomputer.
Preferably, the key circuit is divided into a set key S3, an up key S4, a down key S5, and a confirm key S6.
Preferably, the alarm is used for giving out sound reminding, the singlechip P3.7 outputs different duty ratios, the sound frequency can be controlled, the alarm is realized, when the P3.7 gives a low level, the triode Q1 is conducted, the buzzer works, when the P3.7 gives a high level, the triode Q1 is cut off, and the buzzer does not work.
Preferably, the power circuit adopts a 78M05 chip to realize outputting direct current 5V and supplying power to the singlechip.
Through the specific circuit in the instrument, the following beneficial effects can be obtained:
the detection instrument is clamped on the dropper through the clamp, a part of upper-section infusion tube can be clamped, the Mofei dropper on the upper part is clamped, the clamp can be flexibly disassembled, and the detection instrument is applied to various droppers and can be used for multiple times.
The utility model discloses can realize counting the dropping liquid in the burette and show through the display screen, if there is the liquid that special dropping speed required, guarantee the drug effect and avoid the adverse reaction, accurate science again simultaneously.
When the dripping speed is abnormal, the alarm is realized after the abnormal condition is detected by the instrument, medical care personnel and patients are reminded, and the purpose of safety is achieved.
Drawings
FIG. 1 is a view showing the structure of a detecting instrument
Fig. 2 is a circuit block diagram.
Fig. 3 is a specific circuit diagram of the liquid level sensor.
Fig. 4 is a circuit diagram of infusion drop speed detection.
FIG. 5 is a circuit diagram of an O L ED liquid crystal display.
Fig. 6 is a circuit diagram of the one-chip microcomputer system.
Fig. 7 is a circuit diagram of a real time clock.
Fig. 8 is a key circuit diagram.
Fig. 9 is a buzzer warning circuit diagram.
Fig. 10 is a power supply circuit diagram.
In the figure:
1. a dropper, 2, a detection instrument, 3, a hoop, 4, a display screen, 5, a key, 6 and an alarm.
Detailed Description
The invention will be further explained with reference to the drawings:
as shown in fig. 1-10, the drop velocity detecting apparatus includes a dropper 1, and is characterized in that: a detection instrument 2 is arranged on the dropper 1, and the detection instrument 2 comprises a display screen 4, a key 5 and an alarm 6; the single chip microcomputer system in the detecting instrument 2 is respectively connected with a liquid level sensor, a display screen, an alarm, a key circuit, a real-time clock circuit, an infusion dripping speed detecting circuit and a power circuit (shown in figure 2), and the detecting instrument 2 is connected in a clamp 3 mode (shown in figure 1).
The liquid level sensor is used for detecting whether liquid exists or not, a capacitance type TC301D liquid detection chip is adopted, a 5 th pin of the liquid level sensor is an induction antenna port, a 6 th pin of the liquid level sensor is output, R5 is a pull-up resistor, and an output signal is sent to the single chip microcomputer P3.3 to be processed.
The infusion dripping speed detection circuit adopts an L M393 double-voltage comparator integrated circuit, D1 is an infrared emitting diode, D2 is an infrared receiving diode, and 1-pin output data of L M393 is sent to a P3.2 port of a singlechip for processing.
The display screen adopts O L ED liquid crystal display, adopts direct current 5V power supply, and 3 and 4 feet are data ports, correspond singlechip P0.0 and P0.1 communication.
The single chip microcomputer system comprises a clock circuit and a reset circuit, wherein the clock circuit is composed of a crystal oscillator Y2, a capacitor C13 and a capacitor C14, the crystal oscillator Y2 provides a 12Mhz clock signal for the single chip microcomputer, and the capacitor C13 and the capacitor C14 assist the crystal oscillator to rapidly start oscillation and stabilize the clock frequency; the capacitor C8, the resistor R7 and the reset S1 form a singlechip reset circuit.
The real-time clock circuit adopts DS1302 as a real-time clock chip, and further comprises a crystal oscillator Y1 capacitor C6, a capacitor C7 and a standby battery BT1, wherein RP3 is a pull-up single chip microcomputer, and the clock chip is communicated with three IO ports of the single chip microcomputer P3.4, P3.5 and P3.6.
The key circuit is divided into a set key S3, an add key S4, a subtract key S5, and an enter key S6.
The alarm is used for giving out sound to remind, the singlechip P3.7 outputs different duty ratios, the sound frequency can be controlled, the alarm is realized, when the P3.7 gives a low level, the triode Q1 is conducted, the buzzer works, when the P3.7 gives a high level, the triode Q1 is cut off, and the buzzer does not work.
Preferably, the power circuit adopts a 78M05 chip to realize outputting direct current 5V and supplying power to the singlechip.
The utility model discloses a theory of operation and working process as follows:
fig. 3 is a liquid detection circuit for detecting whether liquid exists, TC301D is a capacitive liquid detection chip, 5 pins are inductive antenna ports, C2 capacitance can change sensitivity, the smaller the capacitance, the higher the sensitivity, C1 is a power supply filter capacitance, and is close to a chip power supply pin to ensure stable power supply, 6 pins are output, R5 is a pull-up resistance, and an output signal is sent to a single chip microcomputer P3.3 for processing.
FIG. 4 shows a circuit for detecting the number of drops in infusion, which utilizes infrared detection, D1 is an infrared emitting diode, D2 is an infrared receiving diode, when no liquid passes through, D1 emits D2 to be directly received, when liquid drips in the middle, the infrared rays are blocked, U2A L M393 is at a low level, so that a L M3931 pin outputs a low level, otherwise, the D1 transmits the low level, RP1 is a sensitivity-adjusting potentiometer, a capacitor C5 is connected in parallel with two ends of D2 to prevent the circuit from shaking, and the circuit is anti-interference, and L M3931 pin outputs data to a P3.2 port of a singlechip to be processed.
Fig. 5 is O L ED lcd for displaying drop count and time lamp parameters, using dc 5V power supply, with pins 3 and 4 as data ports, communicating with the single-chip microcomputer P0.0 and P0.1, respectively.
Fig. 6 is a system of a single chip microcomputer, and the single chip microcomputer comprises a clock circuit and a reset circuit.
The clock circuit is composed of a crystal oscillator Y2, a capacitor C13 and a capacitor C14, the crystal oscillator Y2 provides a 12Mhz clock signal for the single chip microcomputer, and the capacitor C13 and the capacitor C14 assist the crystal oscillator to start oscillation quickly and stabilize clock frequency.
Capacitor C8, resistance R7, reset button S1 are singlechip reset circuit, and resistance R7 and electric capacity C8 are gone up and are utilized electric capacity charge-discharge principle automatic re-setting, and S1 is manual reset button, and when pressing the button, singlechip reset pin is the high level, and the singlechip resets, loosens the button, and reset pin is the low level, and the singlechip normally works.
Fig. 7 is a real-time clock circuit, U4 DS1302 is a real-time clock chip, crystal oscillator Y1, capacitor C6 and capacitor C7 are clock circuits, crystal oscillator Y1 adopts 32.768Khz to provide clock signals for U4, capacitor C6 and capacitor C7 assist the crystal oscillator to rapidly start oscillation and stabilize clock frequency, BT1 is a backup battery, when a main power supply is powered off, the backup battery supplies power to the clock chip to ensure that clock data is not lost, RP3 is a pull-up single chip, and the clock chip communicates with three IO ports of single chip P3.4, P3.5 and P3.6.
Fig. 8 is a key circuit, when a key is not pressed, the corresponding IO port is pulled high by a pull-up resistor R9-R12, the corresponding IO port is at a high level, when the key is pressed, the corresponding IO port is at a low level, the single chip microcomputer can know whether the key is pressed by detecting the change of the high and low levels of the corresponding IO port, and then executes a corresponding command.
Fig. 9 shows a buzzer alarm circuit for sounding a reminder, where the single-chip microcomputer P3.7 outputs different duty ratios to control the sound frequency to alarm, and when P3.7 gives a low level, the transistor Q1 is turned on, the buzzer operates, and when P3.7 gives a high level, the transistor Q1 is turned off, and the buzzer does not operate.
Fig. 10 is a power supply circuit, P1 is a charging interface, D3 is an isolation diode, the one-way conductivity of the diode is used for preventing the battery from flowing to the charger, S2 is a power switch, the power supply is controlled to be turned on and off, C9, C12, C10 and C11 are power filter capacitors, the power supply stability is ensured, U6 is a 78M05 voltage stabilizing chip, because the battery is full and the voltage is not the same as the voltage soon to be used up, a voltage stabilizing chip needs to be added, the battery voltage is not affected, the output is always 5V, and the power is supplied to the single chip microcomputer.
Through the connection between the above-mentioned circuits, level sensor detects the speed of dripping, the flow of the liquid drop in burette 1 to demonstrate specific speed of dripping and flow in through the display screen, make patient and medical personnel can directly perceivedly see the state of infusion, when liquid in the burette does not have, can report to the police through bee calling organ, remind patient or medical personnel to finish the infusion.
Claims (9)
1. Dripping speed detecting instrument, including burette (1), its characterized in that: a detection instrument (2) is arranged on the dropper (1), and the detection instrument (2) comprises a display screen (4), a key (5) and an alarm (6); the single chip microcomputer system in the detecting instrument (2) is respectively connected with the liquid level sensor, the display screen, the alarm, the key circuit, the real-time clock circuit, the infusion dripping speed detecting circuit and the power circuit, and the detecting instrument (2) is connected in a clamp (3) mode.
2. The drop velocity detection apparatus according to claim 1, wherein: the liquid level sensor is used for detecting whether liquid exists or not, a capacitance type TC301D liquid detection chip is adopted, a 5 th pin of the liquid level sensor is an induction antenna port, a 6 th pin of the liquid level sensor is output, R5 is a pull-up resistor, and an output signal is sent to a single chip microcomputer P3.3 to be processed.
3. The dropping speed detector according to claim 1, wherein the infusion dropping speed detection circuit employs L M393 dual-voltage comparator integrated circuit, D1 is an infrared emitting diode, D2 is an infrared receiving diode, and 1-pin output data of L M393 is sent to a P3.2 port of the single chip microcomputer for processing.
4. The drop speed detecting instrument according to claim 1, wherein the display screen is O L ED LCD screen, DC 5V power supply, and 3 and 4 pins are data ports corresponding to the communication between the single-chip microcomputer P0.0 and P0.1.
5. The drop velocity detection apparatus according to claim 1, wherein: the single chip microcomputer system comprises a clock circuit and a reset circuit, wherein the clock circuit is composed of a crystal oscillator Y2, a capacitor C13 and a capacitor C14, the crystal oscillator Y2 provides a 12Mhz clock signal for the single chip microcomputer, and the capacitor C13 and the capacitor C14 assist the crystal oscillator to rapidly start oscillation and stabilize the clock frequency; the capacitor C8, the resistor R7 and the reset S1 form a singlechip reset circuit.
6. The drop velocity detection apparatus according to claim 1, wherein: the real-time clock circuit adopts DS1302 as a real-time clock chip, and further comprises a crystal oscillator Y1 capacitor C6, a capacitor C7 and a standby battery BT1, wherein RP3 is a pull-up single chip microcomputer, and the clock chip is communicated with three IO ports of the single chip microcomputer P3.4, P3.5 and P3.6.
7. The drop velocity detection apparatus according to claim 1, wherein: the key circuit is divided into a set key S3, an add key S4, a subtract key S5, and an enter key S6.
8. The drop velocity detection apparatus according to claim 1, wherein: the alarm is used for giving out sound to remind, the singlechip P3.7 outputs different duty ratios, the sound frequency can be controlled, the alarm is realized, when the P3.7 gives a low level, the triode Q1 is conducted, the buzzer works, when the P3.7 gives a high level, the triode Q1 is cut off, and the buzzer does not work.
9. The drop velocity detecting apparatus according to claim 1, wherein: the power supply circuit adopts a 78M05 chip to realize the output of direct current 5V and supply power to the singlechip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921703440.8U CN211050504U (en) | 2019-10-12 | 2019-10-12 | Dropping speed detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921703440.8U CN211050504U (en) | 2019-10-12 | 2019-10-12 | Dropping speed detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211050504U true CN211050504U (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921703440.8U Expired - Fee Related CN211050504U (en) | 2019-10-12 | 2019-10-12 | Dropping speed detecting instrument |
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| Country | Link |
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| CN (1) | CN211050504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975536A (en) * | 2021-11-26 | 2022-01-28 | 深圳市中兴视通科技有限公司 | Infusion monitor |
-
2019
- 2019-10-12 CN CN201921703440.8U patent/CN211050504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113975536A (en) * | 2021-11-26 | 2022-01-28 | 深圳市中兴视通科技有限公司 | Infusion monitor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 |