CN103272307A - Infusion dripping speed monitoring device - Google Patents
Infusion dripping speed monitoring device Download PDFInfo
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- CN103272307A CN103272307A CN2013102223245A CN201310222324A CN103272307A CN 103272307 A CN103272307 A CN 103272307A CN 2013102223245 A CN2013102223245 A CN 2013102223245A CN 201310222324 A CN201310222324 A CN 201310222324A CN 103272307 A CN103272307 A CN 103272307A
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Abstract
The invention discloses an infusion dripping speed monitoring device. A manual monitoring mode is adopted for current infusion dripping speed monitoring management. The infusion speed monitoring device comprises a shell, and a lithium battery and a control circuit are arranged in the shell. The control circuit comprises a control module, a battery charging module, a power supply control module, a human-computer interaction module and a signal acquisition module. The shell comprises a front shell and a rear shell; a liquid crystal display hole and indicating lamp holes are reserved in the face of the front shell; the rear shell comprises an integrally formed main shell body, a positioning block and two monitoring element mounting blocks; a data interface hole and key holes are reserved on the side wall of the main shell body, and buzzer holes are reserved on the bottom surface of the main shell body; the positioning block and the two monitoring element mounting blocks are all arranged on the back of the main shell body; a monitoring element mounting groove is reserved in each monitoring element mounting block; a positioning hole is reserved in the positioning block; part of the side wall of the positioning hole penetrates one end of the positioning block through a line through groove. Dripping speed of an infusion tube can be monitored accurately, and the device can be operated with one hand, and is simple and convenient.
Description
Technical field
The invention belongs to electronic technology field, be specifically related to a kind of transfusion drip speed supervising device.
Background technology
Venous transfusion is the most frequently used in a clinical drug therapy medicine-feeding technology, but when carrying out infusion treatment, because the not equal situation of patient's age, cardiac function, health tolerance level and used medicine needs to rely on medical personnel's abundant clinical experience could regulate and control transfusion speed preferably to finish Drug therapy smoothly.Such as, the old people is dripped speed with infant and is wanted slow; Also wanting slowly of acute and chronic cardiac insufficiency; Drip speed when acute dehydration, shock or hyperpyrexia and want fast; Drip during defeated aminophylline and drip speed when speed is wanted slow, defeated mannitol and want fast; Therefore, rationally controlling speed of intravenous infusion, is important link in medical treatment and the nursery work, has also become the important content of hospital to nurse's examination.
In actual infusion treatment process, because the fast situation of dripping to shortage and the fluke mind of medical knowledge, often appears arbitrarily adjusting in patient and attending family; Position changes the situation cause that the folding distortion of tube for transfusion, infusion needle are stopped up, infusion connector comes off etc. and cause transfusion speed to change when also often existing the patient to infuse, and these all may cause medication effect to descend, even the generation of malpractice.At above problem, now hospital can only make an inspection tour manual methods such as (one-level nursing be make an inspection tour for 1 time/hour) by propaganda and education and nurse and prevents to solve, but the transfusion drip speed that can't hold the patient under the situation of current nursing human resource anxiety in real time, dynamically changes, thereby can't provide care for the patient in the very first time.
In order to guarantee the safety of infusing, when reducing nurse job intensity, improve nursery work efficient, many experts and engineers and technicians are in research and explore multiple transfusion drip speed method for supervising and technology.But because the particularity of clinical practice (requiring simple operations, accurately Realtime Alerts, wireless penetration deployment etc.), make existing solution can't satisfy the clinical practice demand, so all researchs all stop theory and experimentation stage at present, can't large-scale application in clinical.Therefore, nearly all hospital is still adopting traditional manual monitoring pattern to carry out daily transfusion drip speed monitoring management.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of transfusion drip speed supervising device.
Transfusion drip speed supervising device of the present invention comprises housing, is provided with lithium battery and control circuit in the housing; Control circuit comprises control module, battery charging module, energy supply control module, human-computer interaction module and signal acquisition module.
Described housing comprises procapsid and back casing, and the open surface of procapsid is fixedlyed connected with the open surface of back casing; Procapsid is the cuboid housing, and face offers liquid crystal display screen hole and indicator lamp hole; Back casing comprises integrated main casing, locating piece and two monitoring element mounting blocks; Described main casing is the cuboid housing, and main casing and procapsid are enclosed complete cuboid cavity.
The sidewall of main casing has data-interface hole and key hole, and the bottom surface has the buzzer hole.Locating piece and two monitoring element mounting blocks all are arranged on the back side of main casing, wherein locating piece is arranged on the centre position of main casing upper rear portion, two monitoring element mounting blocks are symmetrical arranged at the middle part overleaf, have the monitoring element mounting groove on two monitoring element mounting blocks, two monitoring element mounting grooves are oppositely arranged.
Locating piece integral body is the U font, has locating hole on the locating piece.Locating hole is one to run through the manhole of locating piece end face and bottom surface, and the partial sidewall of manhole runs through an end of locating piece by one section straight line groove, and the width of straight line groove is less than the internal diameter of manhole.
Described control module comprises microprocessor U1, three divider resistances, a reset resistor, a reset capacitance, a decoupling capacitor, a clock crystal oscillator; Described microprocessor U1 is the microprocessor that low-power consumption includes the section-type LCD driver module, has four level drive voltage at least.
The end of the first decoupling capacitor C1 is connected with two power input mouth VCC of microprocessor U1, and connects 3.3V power supply, two grounding leg VSS ground connection of the other end of the first decoupling capacitor C1 and microprocessor U1; The end of reset resistor R4 is connected with the resetting pin RESET of microprocessor U1 with the end of reset capacitance C2, another termination 3.3V power supply of reset resistor R4, the other end ground connection of reset capacitance C2; The two ends of clock crystal oscillator Y are connected with internal oscillator circuit output pin XOUT with the internal oscillator circuit input pin XIN of microprocessor U1 respectively; The two ends of the first divider resistance R1 are connected with the second divider resistance foot R23 with the first divider resistance foot R33 of microprocessor U1 respectively, the two ends of the second divider resistance R2 are connected with the 3rd divider resistance foot R13 with the second divider resistance foot R23 of microprocessor U1 respectively, the two ends of the 3rd divider resistance R3 are connected with the 4th divider resistance foot R03 with the 3rd divider resistance foot R13 of microprocessor U1 respectively, the 4th divider resistance foot R03 ground connection, three divider resistances are divided into the even quartering with 3.3V voltage, and the section-type LCD driver module that includes for microprocessor U1 provides driving voltage.
Described battery charging module comprises lithium cell charging chip U2, two divider resistances, a pull-up resistor, a current-limiting resistance, a filter capacitor.
The end of the end of the 4th divider resistance R6 and the 5th divider resistance R7 is connected the back and is connected with the I/O mouth of microprocessor U1, the other end ground connection of the 5th divider resistance R7, the anodal foot VIN of the charging of the end of the other end of the 4th divider resistance R6, the first pull-up resistor R8 and lithium cell charging chip U2, enable foot CE and connect, as the anodal port of the charge power supply of battery charging module; After being connected, the charged state indication foot CHRG of the other end of the first pull-up resistor R8 and lithium cell charging chip U2 connects the I/O mouth of microprocessor U1; R5 one end of first current-limiting resistance is connected with the charging current control pin ISET of lithium cell charging chip U2, other end ground connection, and the end of the first filter capacitor C3 is connected other end ground connection with the anode output pin VBAT of lithium cell charging chip U2; Temperature detection foot TEMP, the grounding leg GND of lithium cell charging chip U2, charge fault detect foot FAULT ground connection; The positive pole of lithium battery L connects the anode output pin VBAT of lithium cell charging chip U2, minus earth.
Described energy supply control module comprises three pin linear voltage regulators, five pin linear voltage regulators, two filter capacitors, two decoupling capacitors, two feedback resistances.
The power supply input pin VIN-3 of three pin linear voltage regulator U3 connects the positive pole of lithium battery L, grounding leg GND-3 ground connection, power supply output pin VOUT-3 is connected with the end of the second filter capacitor C4, the end of the second decoupling capacitor C5, the power supply input pin VIN-4 of five pin linear voltage regulator U4, as the output of 3.3V power supply, the other end ground connection of the other end of the second filter capacitor C4 and the second decoupling capacitor C5; The end of the end of the end of the first feedback resistance R9, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7 is connected with the power supply output pin VOUT-4 of five pin linear voltage regulator U4, as the 3.3V power supply of signal acquisition module; The end of the other end of the first feedback resistance R9 and the second feedback resistance R10 is connected with the feedback pin FB-4 of five pin linear voltage regulator U4, the other end ground connection of the other end of the other end of the second feedback resistance R10, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7; The grounding leg GND-4 ground connection of five pin linear voltage regulator U4 enables the I/O mouth that foot EN-4 meets microprocessor U1.
Described human-computer interaction module comprises two indicator light circuits, two key circuits, buzzer circuit and section-type LCD display screen.
Two indicator light circuit structures are identical, include a current-limiting resistance and a light emitting diode; The negative pole of light emitting diode D connects the end of the second current-limiting resistance R11, and the positive pole of light emitting diode D connects the 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the second current-limiting resistance R11; Light emitting diode D is arranged in the indicator lamp hole of housing.
Two key circuit structures are identical, include a button and a pull-up resistor; The end of button K and the I/O mouth that meets microprocessor U1 after the end of the second pull-up resistor R12 is connected, the other end ground connection of button K, another termination 3.3V power supply of the second pull-up resistor R12; Button K is arranged in the key hole of housing.
Buzzer circuit comprises an active buzzer and a current-limiting resistance; The end of active buzzer B is connected with the end of the 3rd current-limiting resistance R13, another termination 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the 3rd current-limiting resistance R13; Active buzzer B is arranged on the buzzer hole correspondence position of housing.
Four common ports of section-type LCD display screen and the corresponding connection of four common port feet of microprocessor U1, the corresponding connection of nine segment encode control pins of nine segment encode control ends and microprocessor U1; The section-type LCD display screen is arranged in the liquid crystal display screen hole of housing.
Described signal acquisition module comprises an infrared-emitting diode, an infrared reception audion, two current-limiting resistances.The end of the 4th current limliting R14 is connected with the positive pole of infrared-emitting diode IR, the end of the 5th current limliting R15 is connected with the colelctor electrode of infrared reception audion PT, and connect the I/O mouth of microprocessor U1, the 3.3V power supply of another termination signal acquisition module of the other end of the 4th current limliting R14 and the 5th current limliting R15, the grounded emitter of the negative pole of infrared-emitting diode IR and infrared reception audion PT, the base stage of infrared reception audion PT is as photosensitive-member; Infrared-emitting diode IR is arranged in the monitoring element mounting groove, and infrared reception audion PT is arranged in another monitoring element mounting groove.
The present invention is on the basis of current advanced person's RFID communication technology, and the structure that appropriate design " is dripped the slowdown monitoring unit " has the following advantages:
1, simple operations: nurse's one hand hangs " dripping the slowdown monitoring unit ", makes it on accurate, stable being hung on " not Fes " dropper by the limited bayonet of this equipment upper edge;
2, accurate Realtime Alerts: after having hung this equipment, the infrared number of drops that automatic monitoring is passed through at the appointed time to injection device that equipment is built-in is also calculated current speed in real time, when dripping speed skew setting, trigger and report to the police that (warning is 2 kinds of modes 1. local warnings synchronously: equipment carries buzzer call; 2. nurse station reports to the police: by communication module on the equipment, warning message is transferred on the nurse station equipment, and triggers nurse station equipment and send voice and literal warning);
3, wireless penetration is disposed: equipment adopts RFID low-power consumption communication mode, does not need the FU laying communications cable and power cable for this reason;
4, the nurse station real-time tracking shows a speed: by the data transmission capabilities of the built-in RFID communication module of equipment, nurse station equipment can show current speed of each berth in real time, is convenient to this lesion transfusion state of nurse's global knowledge.
This transfusion drip speed supervising device can be realized lesion venous transfusion intellectuality, the overall process closed loop path management that becomes more meticulous.Make the nurse can in time understand transfusion fault of each patient infusion velocity variations and appearance etc., the nurse can in time be handled the malpraxis that may cause owing to a fast variation in the very first time, guarantee transfusion safety to greatest extent, thereby improve nursery work efficient, under the prerequisite of limited nursing human resource, for the patient provides more timely, safe, thoughtful high-quality care.
Description of drawings
Fig. 1 is the overall structure sketch map of middle shell of the present invention;
Fig. 2 is the rearview of the back casing of middle shell of the present invention;
Fig. 3 is the front view of the back casing of middle shell of the present invention;
Fig. 4 is the control module circuit diagram of control circuit among the present invention;
Fig. 5 is the battery charging module circuit diagram of control circuit among the present invention;
Fig. 6 is the energy supply control module circuit diagram of control circuit among the present invention;
Fig. 7-1 is the indicator light circuit circuit diagram of the energy supply control module of control circuit among the present invention;
Fig. 7-2 is the key circuit circuit diagram of the energy supply control module of control circuit among the present invention;
Fig. 7-3 is the buzzer circuit circuit diagram of the energy supply control module of control circuit among the present invention;
Fig. 8 is the signal acquisition module circuit diagram of control circuit among the present invention.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
A kind of transfusion drip speed supervising device comprises housing, is provided with lithium battery and control circuit in the housing; Control circuit comprises control module, battery charging module, energy supply control module, human-computer interaction module and signal acquisition module.
As shown in Figure 1, housing comprises procapsid 1 and back casing 2, and the open surface of procapsid 1 is fixedlyed connected with the open surface of back casing 2; Procapsid 1 is the cuboid housing, and face offers liquid crystal display screen hole 1-1 and indicator lamp hole 1-2.
Shown in Fig. 2 and 3, back casing 2 comprises integrated main casing 2-1, locating piece 2-2 and two monitoring element mounting blocks 2-3.Main casing 2-1 is the cuboid housing, and main casing 2-1 and procapsid 1 are enclosed complete cuboid cavity.
The sidewall of main casing 2-1 has data-interface hole 2-7 and key hole 2-8, and the bottom surface has buzzer hole 2-9.Locating piece 2-2 and two monitoring element mounting blocks 2-3 all are arranged on the back side of main casing 2-1, wherein locating piece 2-2 is arranged on the centre position of main casing upper rear portion, two monitoring element mounting blocks 2-3 are symmetrical arranged at the middle part overleaf, have monitoring element mounting groove 2-4 on two monitoring element mounting blocks 2-3, two monitoring element mounting groove 2-4 are oppositely arranged.
Locating piece 2-2 integral body is the U font, has locating hole 2-5 on the locating piece 2-2.Locating hole 2-5 one runs through the manhole of locating piece 2-2 end face and bottom surface, and the partial sidewall of manhole runs through the end of locating piece 2-2 by one section straight line groove 2-6, and the width of straight line groove 2-6 is less than the internal diameter of manhole 2-5.
As shown in Figure 4, control module comprises microprocessor U1, three divider resistances, a reset resistor, a reset capacitance, a decoupling capacitor, a clock crystal oscillator; Described microprocessor U1 is the microprocessor that low-power consumption includes the section-type LCD driver module, has four level drive voltage at least, as the MSP430F413 chip of TI company.
The end of the first decoupling capacitor C1 is connected with two power input mouth VCC of microprocessor U1, and connects 3.3V power supply, two grounding leg VSS ground connection of the other end of the first decoupling capacitor C1 and microprocessor U1; The end of reset resistor R4 is connected with the resetting pin RESET of microprocessor U1 with the end of reset capacitance C2, another termination 3.3V power supply of reset resistor R4, the other end ground connection of reset capacitance C2; The two ends of clock crystal oscillator Y are connected with internal oscillator circuit output pin XOUT with the internal oscillator circuit input pin XIN of microprocessor U1 respectively; The two ends of the first divider resistance R1 are connected with the second divider resistance foot R23 with the first divider resistance foot R33 of microprocessor U1 respectively, the two ends of the second divider resistance R2 are connected with the 3rd divider resistance foot R13 with the second divider resistance foot R23 of microprocessor U1 respectively, the two ends of the 3rd divider resistance R3 are connected with the 4th divider resistance foot R03 with the 3rd divider resistance foot R13 of microprocessor U1 respectively, the 4th divider resistance foot R03 ground connection, three divider resistances are divided into the even quartering with 3.3V voltage, and the section-type LCD driver module that includes for microprocessor U1 provides driving voltage.
As shown in Figure 5, battery charging module comprises lithium cell charging chip U2, two divider resistances, a pull-up resistor, a current-limiting resistance, a filter capacitor; Described lithium cell charging chip U2 adopts lithium cell charging chip commonly used, for example the CN3052A chip of Shanghai such as rhythm Electronics Co., Ltd..
The end of the end of the 4th divider resistance R6 and the 5th divider resistance R7 is connected the back and is connected with the I/O mouth of microprocessor U1, the other end ground connection of the 5th divider resistance R7, the anodal foot VIN of the charging of the end of the other end of the 4th divider resistance R6, the first pull-up resistor R8 and lithium cell charging chip U2, enable foot CE and connect, as the anodal port of the charge power supply of battery charging module; After being connected, the charged state indication foot CHRG of the other end of the first pull-up resistor R8 and lithium cell charging chip U2 connects the I/O mouth of microprocessor U1; R5 one end of first current-limiting resistance is connected with the charging current control pin ISET of lithium cell charging chip U2, other end ground connection, and the end of the first filter capacitor C3 is connected other end ground connection with the anode output pin VBAT of lithium cell charging chip U2; Temperature detection foot TEMP, the grounding leg GND of lithium cell charging chip U2, charge fault detect foot FAULT ground connection; The positive pole of lithium battery L connects the anode output pin VBAT of lithium cell charging chip U2, minus earth.
As shown in Figure 6, energy supply control module comprises three pin linear voltage regulators, five pin linear voltage regulators, two filter capacitors, two decoupling capacitors, two feedback resistances.
The power supply input pin VIN-3 of three pin linear voltage regulator U3 connects the positive pole of lithium battery L, grounding leg GND-3 ground connection, power supply output pin VOUT-3 is connected with the end of the second filter capacitor C4, the end of the second decoupling capacitor C5, the power supply input pin VIN-4 of five pin linear voltage regulator U4, as the output of 3.3V power supply, the other end ground connection of the other end of the second filter capacitor C4 and the second decoupling capacitor C5; The end of the end of the end of the first feedback resistance R9, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7 is connected with the power supply output pin VOUT-4 of five pin linear voltage regulator U4, as the 3.3V power supply of signal acquisition module; The end of the other end of the first feedback resistance R9 and the second feedback resistance R10 is connected with the feedback pin FB-4 of five pin linear voltage regulator U4, the other end ground connection of the other end of the other end of the second feedback resistance R10, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7; The grounding leg GND-4 ground connection of five pin linear voltage regulator U4 enables the I/O mouth that foot EN-4 meets microprocessor U1.
Human-computer interaction module comprises two indicator light circuits, two key circuits, buzzer circuit and section-type LCD display screen.
Shown in Fig. 7-1, two indicator light circuit structures are identical, include a current-limiting resistance and a light emitting diode; The negative pole of light emitting diode D connects the end of the second current-limiting resistance R11, and the positive pole of light emitting diode D connects the 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the second current-limiting resistance R11; Light emitting diode D is arranged in the indicator lamp hole 1-2.
Shown in Fig. 7-2, two key circuit structures are identical, include a button and a pull-up resistor; The end of button K and the I/O mouth that meets microprocessor U1 after the end of the second pull-up resistor R12 is connected, the other end ground connection of button K, another termination 3.3V power supply of the second pull-up resistor R12; Button K is arranged in the key hole 2-8.
Shown in Fig. 7-3, buzzer circuit comprises an active buzzer and a current-limiting resistance; The end of active buzzer B is connected with the end of the 3rd current-limiting resistance R13, another termination 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the 3rd current-limiting resistance R13; Active buzzer B is arranged on buzzer hole 2-9 correspondence position.
Four common ports of section-type LCD display screen and the corresponding connection of four common port feet of microprocessor U1, the corresponding connection of nine segment encode control pins of nine segment encode control ends and microprocessor U1; The section-type LCD display screen is arranged in the 1-1 of liquid crystal display screen hole.
As shown in Figure 8, signal acquisition module comprises an infrared-emitting diode, an infrared reception audion, two current-limiting resistances.The end of the 4th current limliting R14 is connected with the positive pole of infrared-emitting diode IR, the end of the 5th current limliting R15 is connected with the colelctor electrode of infrared reception audion PT, and connect the I/O mouth of microprocessor U1, the 3.3V power supply of another termination signal acquisition module of the other end of the 4th current limliting R14 and the 5th current limliting R15, the grounded emitter of the negative pole of infrared-emitting diode IR and infrared reception audion PT, the base stage of infrared reception audion PT is as photosensitive-member; Infrared-emitting diode IR is arranged in the monitoring element mounting groove, and infrared reception audion PT is arranged in another monitoring element mounting groove.
The external diameter of transfusion device China and Mexico Fes dropper head and feed tube junction cylinder less than the external diameter of Mo Feisi dropper, has step-like structure between Mo Feisi dropper and the feed tube simultaneously greater than the external diameter of feed tube.In actual the use, at first the feed tube 3 in the transfusion device is stretched in the locating hole 2-5 through straight line groove 2-6, then the transfusion drip speed supervising device is moved down, the cylinder of China ink Fes dropper head and feed tube junction is positioned at locating hole 2-5, this moment, two monitoring element mounting blocks 2-3 laid respectively at the both sides of Mo Feisi dropper 4, infrared-emitting diode IR launches infrared signal, infrared reception audion PT receives infrared signal, when Pharmaceutical is dripped, pass infrared signal, by the speed of dripping of electronic component infusion monitoring device.Because the end face opening size of straight line groove is less than this cylinder external diameter, so the side that the transfusion drip speed supervising device is suspended on the Mo Feisi dropper can not come off.And whole operation only needs one-handed performance to finish, and is very convenient.
Claims (6)
1. a transfusion drip speed supervising device comprises housing, is provided with lithium battery and control circuit in the housing, it is characterized in that: described housing comprises procapsid and back casing, and the open surface of procapsid is fixedlyed connected with the open surface of back casing; Procapsid is the cuboid housing, and face offers liquid crystal display screen hole and indicator lamp hole; Back casing comprises integrated main casing, locating piece and two monitoring element mounting blocks; Described main casing is the cuboid housing, and main casing and procapsid are enclosed complete cuboid cavity;
The sidewall of main casing has data-interface hole and key hole, and the bottom surface has the buzzer hole; Locating piece and two monitoring element mounting blocks all are arranged on the back side of main casing, wherein locating piece is arranged on the centre position of main casing upper rear portion, two monitoring element mounting blocks are symmetrical arranged at the middle part overleaf, have the monitoring element mounting groove on two monitoring element mounting blocks, two monitoring element mounting grooves are oppositely arranged;
Locating piece integral body is the U font, has locating hole on the locating piece; Locating hole is one to run through the manhole of locating piece end face and bottom surface, and the partial sidewall of manhole runs through an end of locating piece by one section straight line groove, and the width of straight line groove is less than the internal diameter of manhole;
Described control circuit comprises control module, battery charging module, energy supply control module, human-computer interaction module and signal acquisition module.
2. a kind of transfusion drip speed supervising device as claimed in claim 1, it is characterized in that: described control module comprises microprocessor U1, three divider resistances, a reset resistor, a reset capacitance, a decoupling capacitor, a clock crystal oscillator; Described microprocessor U1 is the microprocessor that low-power consumption includes the section-type LCD driver module, has four level drive voltage at least;
The end of the first decoupling capacitor C1 is connected with two power input mouth VCC of microprocessor U1, and connects 3.3V power supply, two grounding leg VSS ground connection of the other end of the first decoupling capacitor C1 and microprocessor U1; The end of reset resistor R4 is connected with the resetting pin RESET of microprocessor U1 with the end of reset capacitance C2, another termination 3.3V power supply of reset resistor R4, the other end ground connection of reset capacitance C2; The two ends of clock crystal oscillator Y are connected with internal oscillator circuit output pin XOUT with the internal oscillator circuit input pin XIN of microprocessor U1 respectively; The two ends of the first divider resistance R1 are connected with the second divider resistance foot R23 with the first divider resistance foot R33 of microprocessor U1 respectively, the two ends of the second divider resistance R2 are connected with the 3rd divider resistance foot R13 with the second divider resistance foot R23 of microprocessor U1 respectively, the two ends of the 3rd divider resistance R3 are connected with the 4th divider resistance foot R03 with the 3rd divider resistance foot R13 of microprocessor U1 respectively, the 4th divider resistance foot R03 ground connection, three divider resistances are divided into the even quartering with 3.3V voltage, and the section-type LCD driver module that includes for microprocessor U1 provides driving voltage.
3. a kind of transfusion drip speed supervising device as claimed in claim 1, it is characterized in that: described battery charging module comprises lithium cell charging chip U2, two divider resistances, a pull-up resistor, a current-limiting resistance, a filter capacitor;
The end of the end of the 4th divider resistance R6 and the 5th divider resistance R7 is connected the back and is connected with the I/O mouth of microprocessor U1, the other end ground connection of the 5th divider resistance R7, the anodal foot VIN of the charging of the end of the other end of the 4th divider resistance R6, the first pull-up resistor R8 and lithium cell charging chip U2, enable foot CE and connect, as the anodal port of the charge power supply of battery charging module; After being connected, the charged state indication foot CHRG of the other end of the first pull-up resistor R8 and lithium cell charging chip U2 connects the I/O mouth of microprocessor U1; R5 one end of first current-limiting resistance is connected with the charging current control pin ISET of lithium cell charging chip U2, other end ground connection, and the end of the first filter capacitor C3 is connected other end ground connection with the anode output pin VBAT of lithium cell charging chip U2; Temperature detection foot TEMP, the grounding leg GND of lithium cell charging chip U2, charge fault detect foot FAULT ground connection; The positive pole of lithium battery L connects the anode output pin VBAT of lithium cell charging chip U2, minus earth.
4. a kind of transfusion drip speed supervising device as claimed in claim 1, it is characterized in that: described energy supply control module comprises three pin linear voltage regulators, five pin linear voltage regulators, two filter capacitors, two decoupling capacitors, two feedback resistances;
The power supply input pin VIN-3 of three pin linear voltage regulator U3 connects the positive pole of lithium battery L, grounding leg GND-3 ground connection, power supply output pin VOUT-3 is connected with the end of the second filter capacitor C4, the end of the second decoupling capacitor C5, the power supply input pin VIN-4 of five pin linear voltage regulator U4, as the output of 3.3V power supply, the other end ground connection of the other end of the second filter capacitor C4 and the second decoupling capacitor C5; The end of the end of the end of the first feedback resistance R9, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7 is connected with the power supply output pin VOUT-4 of five pin linear voltage regulator U4, as the 3.3V power supply of signal acquisition module; The end of the other end of the first feedback resistance R9 and the second feedback resistance R10 is connected with the feedback pin FB-4 of five pin linear voltage regulator U4, the other end ground connection of the other end of the other end of the second feedback resistance R10, the 3rd filter capacitor C6, the 3rd decoupling capacitor C7; The grounding leg GND-4 ground connection of five pin linear voltage regulator U4 enables the I/O mouth that foot EN-4 meets microprocessor U1.
5. a kind of transfusion drip speed supervising device as claimed in claim 1 is characterized in that: described human-computer interaction module comprises two indicator light circuits, two key circuits, buzzer circuit and section-type LCD display screen;
Two indicator light circuit structures are identical, include a current-limiting resistance and a light emitting diode; The negative pole of light emitting diode D connects the end of the second current-limiting resistance R11, and the positive pole of light emitting diode D connects the 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the second current-limiting resistance R11; Light emitting diode D is arranged in the indicator lamp hole of housing;
Two key circuit structures are identical, include a button and a pull-up resistor; The end of button K and the I/O mouth that meets microprocessor U1 after the end of the second pull-up resistor R12 is connected, the other end ground connection of button K, another termination 3.3V power supply of the second pull-up resistor R12; Button K is arranged in the key hole of housing;
Buzzer circuit comprises an active buzzer and a current-limiting resistance; The end of active buzzer B is connected with the end of the 3rd current-limiting resistance R13, another termination 3.3V power supply, the I/O mouth of another termination microprocessor U1 of the 3rd current-limiting resistance R13; Active buzzer B is arranged on the buzzer hole correspondence position of housing;
Four common ports of section-type LCD display screen and the corresponding connection of four common port feet of microprocessor U1, the corresponding connection of nine segment encode control pins of nine segment encode control ends and microprocessor U1; The section-type LCD display screen is arranged in the liquid crystal display screen hole of housing.
6. a kind of transfusion drip speed supervising device as claimed in claim 1, it is characterized in that: described signal acquisition module comprises an infrared-emitting diode, an infrared reception audion, two current-limiting resistances; The end of the 4th current limliting R14 is connected with the positive pole of infrared-emitting diode IR, the end of the 5th current limliting R15 is connected with the colelctor electrode of infrared reception audion PT, and connect the I/O mouth of microprocessor U1, the 3.3V power supply of another termination signal acquisition module of the other end of the 4th current limliting R14 and the 5th current limliting R15, the grounded emitter of the negative pole of infrared-emitting diode IR and infrared reception audion PT, the base stage of infrared reception audion PT is as photosensitive-member; Infrared-emitting diode IR is arranged in the monitoring element mounting groove, and infrared reception audion PT is arranged in another monitoring element mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105288789A (en) * | 2015-10-20 | 2016-02-03 | 张皓崎 | Miniature intelligent drip controller |
| CN109224200A (en) * | 2018-11-06 | 2019-01-18 | 仁化县启航电子科技有限公司 | A kind of wireless points dropping liquid amount monitored over time alarm system |
| CN109568724A (en) * | 2018-11-14 | 2019-04-05 | 南京大学 | A kind of transfusion drip speed monitoring system and its working method based on RFID passive sensory |
| CN109692381A (en) * | 2018-12-29 | 2019-04-30 | 中国人民解放军陆军军医大学第一附属医院 | Intelligent transfusion detecting and controlling system |
| CN110164115A (en) * | 2019-06-05 | 2019-08-23 | 河南卓正电子科技有限公司 | A kind of multi-mode Internet of Things wisdom energy source data acquisition terminal |
| CN110354336A (en) * | 2019-07-17 | 2019-10-22 | 盐城金沃医疗科技有限公司 | A kind of infusion flow monitoring device |
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| CN110354336A (en) * | 2019-07-17 | 2019-10-22 | 盐城金沃医疗科技有限公司 | A kind of infusion flow monitoring device |
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