CN204864361U - Venous transfusion monitoring devices - Google Patents
Venous transfusion monitoring devices Download PDFInfo
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- CN204864361U CN204864361U CN201520412898.3U CN201520412898U CN204864361U CN 204864361 U CN204864361 U CN 204864361U CN 201520412898 U CN201520412898 U CN 201520412898U CN 204864361 U CN204864361 U CN 204864361U
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Abstract
The utility model is suitable for a medical instrument field provides a venous transfusion monitoring devices, and it sets up on the transfer line, its include host system and the sensor module who goes on detecting to the liquid level of liquid medicine in the transfer line, to the transfer line carry on the clamp press from both sides a mouthful control module, drive press from both sides mouthful control module to the transfer line carry on the clamp motor driver module, the transfer line undertaken during by the clamp acousto -optic warning suggestion the acousto -optic warning module, do each module provide the power management module of electric energy, sensor module, press from both sides mouthful control module and acousto -optic warning module all with host system connects and controlled by it. The utility model discloses a liquid level condition in the sensor module real -time detection transfer line to when the liquid medicine is totally lost, carry out the automation liquid that breaks by motor driver module, control venous transfusion monitoring devices through main control chip, realized the intelligent monitoring to the venous transfusion process, patient's personal safety has been guaranteed to safe high efficiency.
Description
Technical field
This utility model belongs to medical instruments field, particularly relates to a kind of intravenous infusion monitoring device.
Background technology
Infusion is treatment means conventional in clinical treatment work, and many patients need defeated several groups of medicinal liquids in one day.Need to change or take out Transfusion needle pipe in time terminate infusion process because medicinal liquid is totally lost, and general transfusion time is all long, therefore often need to watch out for medicinal liquid at any time whether to be totally lost, in order to avoid cause medicinal liquid to be totally lost non-Timeliness coverage, make air intravasation form the situation such as aeroembolism or blood backflow.But, generally observed at any time by patient, entourage or medical personnel to monitor medicinal liquid surplus situation in current clinical transfusion process, expend time in long, inefficiency, and cause certain psychological burden to patient, entourage and medical personnel, expend energy on, particularly increase patient, when medical personnel's anxiety, this contradiction is particularly outstanding.
Utility model content
The object of this utility model embodiment is to provide a kind of intravenous infusion monitoring device, is intended to solve the current monitoring to infusion process herb liquid surplus primarily of manually having come, and expends time in and the problem of energy.
This utility model embodiment is achieved in that a kind of intravenous infusion monitoring device, and it is arranged on tube for transfusion, and described intravenous infusion monitoring device comprises:
Main control module and the sensor assembly that the liquid level of tube for transfusion inner liquid medicine is detected;
When described sensor assembly detects liquid level lower than pre-set threshold value, tube for transfusion is carried out to the jaws control module of clamp;
Described jaws control module is driven tube for transfusion to be carried out to the motor drive module of clamp;
When tube for transfusion is by clamp, carry out the sound and light alarm module of sound and light alarm prompting;
The power management module of electric energy is provided respectively with described main control module, described sensor assembly, described jaws control module and described sound and light alarm model calling;
Described sensor assembly, described jaws control module and described sound and light alarm module are all connected with described main control module and control by it.
Preferably, described power management module comprises:
Be connected with described main control module, and connect the Charge Management unit that external power source carries out charging;
Maintain the voltage regulation unit of the voltage stabilization of described Charge Management unit;
Be connected with described Charge Management unit, and detect the electric power detection unit of the dump energy of described Charge Management unit in real time.
Preferably, described Charge Management unit comprises the linear-charging chip with constant current/constant voltage output function, and described linear-charging built-in chip type has single-unit lithium ion battery.
Preferably, described power management module also comprises the USB charging inlet unit be connected with described main control module, USB charging inlet unit comprises USB charging inlet, be connected with on and off switch between this USB charging inlet and described voltage regulation unit, between described USB charging inlet and described Charge Management unit, be connected with diode; Wherein, described USB charging inlet is connected to the positive pole of described diode, and described Charge Management unit is connected to the negative pole of described diode.
Preferably, described USB charging inlet is Micro-USB interface.
Preferably, described motor drive module comprises:
Motor; And
Be connected with described motor and described main control module, and to the H bridge that described motor drives;
Described H bridge comprises the first PMOS, the second PMOS, the first NMOS tube and the second NMOS tube; Wherein, the drain electrode of described first PMOS and the drain electrode of the first NMOS tube are connected to one end of described motor altogether, the drain electrode of the second PMOS and the drain electrode of the second NMOS tube are connected to the other end of described motor altogether, the grid of described first PMOS and the grid of the first NMOS tube are connected to terminals of described main control module altogether, and the grid of described second PMOS and the grid of the second NMOS tube are connected to another terminals of described main control module altogether.
Preferably, described intravenous infusion monitoring device also comprises the jaws control module be all connected with described main control module, described power management module and described motor drive module, and described jaws control module comprises:
By opening manually, and realize by motor described in described master control module controls the jaws pulling clamp;
Drive described motor to pull when described jaws is opened by described jaws closed, and pulled the reset switch of disconnection when described jaws clamp by motor described in described master control module controls;
Described jaws is arranged on position tube for transfusion is positioned at below described sensor assembly, and described jaws is all connected with described electromechanics with described reset switch.
Preferably, described sensor assembly comprises:
The metal detection sheet be connected with described main control module; And
By constantly inputting pwm signal that main control module sends to carry out the metal-oxide-semiconductor of discharge and recharge to described metal detection sheet;
Described metal detection sheet is arranged in the medicinal liquid in tube for transfusion, and the source electrode of described metal-oxide-semiconductor, grid and drain electrode connect one to one in described Charge Management unit, described main control module and described metal detection sheet.
Preferably, described sound and light alarm module comprises buzzer and LED group, described LED group comprises the first different LED of color and the second LED, the positive pole of described first LED is all connected with described main control module with the positive pole of described second LED, and the negative pole of described first LED is all connected with described power management module with the negative pole of described second LED;
Audion is connected with between described buzzer and described main control module, wherein, described main control module is connected to the base stage of described audion, and described buzzer is connected to the colelctor electrode of described audion, the grounded emitter of described audion, described buzzer is also connected with described power management module.
Preferably, described main control module is single-chip microcomputer.
Compared with prior art, its beneficial effect is this utility model embodiment: this utility model is controlled intravenous infusion monitoring device by main control chip, achieves the Intelligent Measurement to venous transfusion process, saves artificial, safe and efficient; This utility model to be powered to intravenous infusion monitoring device by power management module and is carried out power management, ensure that the normal operation of intravenous infusion monitoring device; Whether this utility model detects the liquid level situation in tube for transfusion in real time by sensor assembly, can monitor medicinal liquid timely and effectively and be totally lost, eliminate time and the efforts of personal monitoring; This utility model, by when medicinal liquid is totally lost, is undertaken, from dynamic circuit breaker liquid, ensure that the personal safety of patient by motor drive module; This utility model is too low or carry out sound and light alarm when having infused at intravenous infusion monitoring device electricity by acoustic-optic alarm, enables related personnel obtain transfusion condition in time, ensures patient safety.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the intravenous infusion monitoring device that this utility model embodiment provides;
Fig. 2 is the circuit theory diagrams of the main control module of the intravenous infusion monitoring device that this utility model embodiment provides;
Fig. 3 is the circuit theory diagrams of the Charge Management unit of the power management module that this utility model embodiment provides;
Fig. 4 is the circuit theory diagrams of the USB charging inlet unit of the Charge Management unit that this utility model embodiment provides;
Fig. 5 is the circuit theory diagrams of the voltage regulation unit of the power management module that this utility model embodiment provides;
Fig. 6 is the bleeder circuit schematic diagram of the electric power detection unit of the electrostatic power sources administration module that this utility model embodiment provides;
Fig. 7 is the circuit theory diagrams of the motor drive module of the intravenous infusion monitoring device that this utility model embodiment provides;
Fig. 8 is the circuit theory diagrams of the sensor assembly of the intravenous infusion monitoring device that this utility model embodiment provides;
Fig. 9 is the schematic diagram of the buzzer circuit of the sound and light alarm module that this utility model embodiment provides;
Figure 10 is the schematic diagram of the LED group circuit of the sound and light alarm module that this utility model embodiment provides;
Figure 11 is the circuit theory diagrams of the jaws control module of the intravenous infusion monitoring device that this utility model embodiment provides;
Figure 12 is the control flow chart of the intravenous infusion monitoring device that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and be not used in restriction this utility model.Below part related to the present embodiment is only shown.
As shown in Figure 1, in the present embodiment, described intravenous infusion monitoring device comprises: main control module 10, and described main control module 10 is single-chip microcomputer, and it comprises the one-wire interface unit 11 that can carry out online programming easily and the debugging unit 12 that can carry out non-intrusion type debugging; And the medicinal liquid in tube for transfusion is carried out to the sensor assembly 20 of level detection; When described sensor assembly 20 detects liquid level lower than pre-set threshold value, tube for transfusion is carried out to the jaws control module 30 of clamp; Described jaws control module 30 pairs of tube for transfusions are driven to carry out the motor drive module 40 of clamp; When tube for transfusion is by clamp, carry out the sound and light alarm module 50 of sound and light alarm prompting; Also comprise and be connected with described main control module 10, described sensor assembly 20, described jaws control module 30 and described sound and light alarm module 50 respectively and the power management module 60 of electric energy is provided.Described power management module 60 comprises: be connected with described main control module 10 for connecting the Charge Management unit 61 that external power source carries out charging; Maintain the voltage regulation unit 62 of the voltage stabilization of described Charge Management unit 61; Be connected with described electric power detection unit 63, and detect the residual capacity measurement unit 63 of described Charge Management unit 62 in real time.Described power management module 60 also comprises the USB charging inlet unit 64 be connected with described main control module 10, described USB charging inlet unit 64 comprises USB charging inlet 641, on and off switch is connected with between this USB charging inlet 641 and described voltage regulation unit 62, diode is connected with between described USB charging inlet 641 and described Charge Management unit 61, wherein, described USB charging inlet 641 is connected to the positive pole of described diode, and described Charge Management unit 61 is connected to the negative pole of described diode.In concrete application, described intravenous infusion monitoring device is arranged on tube for transfusion.
As Fig. 2, shown in Fig. 7 and Fig. 8, in the present embodiment, described main control module 10 comprises main control chip U3, it is single-chip microcomputer that chip U3 is changed in this master control, in concrete application, the STM8S003F3 cake core that described single-chip microcomputer selects ST (ST Microelectronics) to produce, STM8S003F3 cake core is a low cost, the microprocessor of low-power consumption, there is senior STM8 kernel, and 3 Harvard structures of level production line, inside carries concussion clock, freely can arrange and switch, also there is the FLASH of nearly 8K, the RAM of 1k, the EEPROM of 128 bytes and 10K time erasable, under 55 DEG C of environment, data can preserve 20 years, and carry 10,5 tunnel AD, the voltage acquisition function of many occasions can be met, also be integrated with conventional SIP simultaneously, the interfaces such as I2C can carry out Project design quickly and easily, also data acquisition can be carried out.
STM8S003F3 cake core comprises 20 pins, and its pinout is:
No. 1 pin PD4, No. 2 pin PD5, No. 3 pin PD6: output pin;
No. 4 pin NRST: reset pin;
No. 5 pin OSCIN/PA1: external timing signal input pin;
No. 6 pin OSCOUT/PA2: general I/O pin;
No. 7 pin VSS: grounding pin;
No. 8 pin VCAP: kernel power supply draws pin;
No. 9 pin VDD: power pins;
No. 10 pin PA3: output pin;
No. 11 pin PB5, No. 12 pin PB4:I2C interface pin;
No. 13 pin PC3, No. 14 pin PC4, No. 15 pin PC5, No. 16 pin PC6, No. 17 pin PC7: output pin;
No. 18 pin PD1, No. 19 pin PD2, No. 20 pin PD3: output pin.
In the present embodiment, No. 4 pin NRST of described chip U3 are the 104 electric capacity C7 ground connection of 0.01uF through capacitance, No. 7 pin GND ground connection, No. 8 pins are the electric capacity C4 ground connection of 1uF through capacitance, No. 11 pin IN and No. 13 pins are that resistance R21 and the resistance R22 of 4.7k Ω holds with the IN of described sensor assembly and be connected respectively through resistance, and 510 resistance R9, the resistance R8 control arm end 1A with described motor drive module 40, control arm end 1B that No. 19 pin MCUB and No. 20 pin MCUA are 51 Ω through resistance are respectively connected.
In another preferred embodiment of the present invention, described STM8S003F3 cake core can equivalencing be STM8L051F3 cake core, and difference is that when using STM8L051F3 cake core, described resistance R21 and resistance R22 only needs to weld one of them.
As shown in Fig. 2, Fig. 3 and Fig. 6, in the present embodiment, described Charge Management unit 61 comprises charging chip U6, and described charging chip U6 is the linear-charging chip with constant current/constant voltage output function, and described linear-charging built-in chip type has single-unit lithium ion battery.In the present embodiment, described charging chip U6 adopts TP4056 Linear charging chip.
Described TP4056 cake core has 8 pins, and its pinout is:
No. 1 pin TEME: battery temperature detects input;
No. 2 pin PROG: constant-current charge electric current is arranged and charging current monitoring side;
No. 3 pin GND: power supply ground;
No. 4 pin VCC: input voltage positive input terminal;
No. 5 pin BAT: battery terminal connections;
No. 6 pin STDBY: battery charging complete indication end;
No. 7 pin CHRY: the charged state indication end that open-drain exports;
No. 8 pin CE: chip enable input.
No. 1 pin of described charging chip U6 and No. 3 pin ground connection, No. 2 pins are the resistance R23 ground connection of 2k Ω through resistance, No. 3 pin ground connection, No. 5 pins are the electric capacity C10 ground connection of 10uF through capacitance, No. 5 pin BAT+ ends also connect the BAT+ end of electric power detection module 63, No. 4 pins, No. 6 pins through resistance be the resistance R7 of 1k Ω, No. 7 pins are connected to BATIN end altogether through resistance R6 and No. 8 pin that resistance is 1k Ω, it is also that the resistance R11 of 1k Ω to hold with No. 12 pin STDBY of described main control chip U3 and is connected through resistance that No. 6 pin STDBY hold.
The gelled SOP8 encapsulation of described TP4056 cake core bottom belt, and external circuit is simple, device used is few, is applicable to USB charging; Also owing to have employed inner PMOSFET framework, add anti-down charging circuit, so do not need external isolation diode; Thermal feedback can automatically adjust to its charging current, to be limited chip temperature under high-power operation or high ambient temperature condition; Its charging voltage is fixed on 4.2V, charging current carries out outer setting by a resistor, when charging current is down to setting value 1/10 after reaching final float charge voltage, TP4056 cake core will stop charging cycle automatically, when input voltage (AC adapter or USB power source) is taken away, TP4056 enters a low current condition automatically, and battery leakage current is down to below 2uA.TP4056 cake core also can be placed in shutdown mode when there being power supply, and supply current is down to 55uA.TP4056 cake core also has battery temperature detection, undervoltage lockout, the function that automatically recharges, comprises the LED state pin that two are used to indicate charged state.
As shown in Figure 1, described USB charging inlet 641 is connected with Charge Management unit 61 by diode, on and off switch is made no matter to be in unlatching or closed condition, as long as this USB charging inlet 641 is inserted outside charge power supply to charge to Charge Management unit 61, also ensure that when not charging simultaneously, and during on and off switch disconnection, the power supply of described intravenous infusion monitoring device disconnects, and does not carry out work.
Concrete, shown in Fig. 2, Fig. 3 and Fig. 4, in the present embodiment, described USB charging inlet unit 64 comprises USB charging inlet JP1 (the USB charging inlet 641 namely in Fig. 1), and this USB charging inlet JP1 is Micro-USB5.0 type interface; Described USB charging inlet JP1 has 5 pins, and its pinout is:
No. 1 pin VCC: power supply just;
No. 2 pin D-: data wire is born;
No. 3 pin D+: data wire just;
No. 4 pin ID: vacant end;
No. 5 pin GND: power supply ground.
It is that the resistance R17 of 50k Ω to hold with No. 15 pin AINI of main control chip U3 and is connected that No. 1 pin USB of described USB charging inlet JP1 holds through resistance, No. 1 pin is also the resistance R18 ground connection of 100k Ω through described resistance R17 and resistance, No. 1 pin also to be held with No. 8 pin BATIN of described charging chip U6 through diode D2 and is connected, concrete, described No. 1 pin connects the positive pole of diode D2, and No. 8 pins of chip U6 connect the negative pole of diode D2; Described on and off switch S1 comprises 3 contact jaws, wherein contact jaw 3 connects No. 1 pin of described USB charging inlet JP1, contact jaw 2 connects described voltage regulation unit 23, and No. 5 pin BAT+ of described charging chip U6 hold and the BAT+ of electric power detection unit holds the contact jaw 1 being connected to described on and off switch S1 altogether; No. 5 pin ground connection of described USB charging inlet JP1.
As shown in Figure 4 and Figure 5, in the present embodiment, described voltage regulation unit 62 comprises the LDO voltage stabilizing chip of two pieces of low voltage differences in parallel, be respectively RT9193 cake core U1 and MIC5205 cake core U7, described RT9193 cake core U1 and MIC5205 cake core U7 includes 5 pins, wherein, the pinout of described RT9193 cake core U1 is:
No. 1 pin IN: power input voltage;
No. 2 pin GND: earth terminal;
No. 3 pin EN: chip enable;
No. 4 pin BP: reference noise bypass;
No. 5 pin OUT: output voltage;
The pinout of described MIC5205 cake core U7 is:
No. 1 pin IN: power input;
No. 2 pin GND: earth terminal;
No. 3 pin EN: chip enable;
No. 4 pin BYP: reference noise bypass;
No. 5 pin OUT: output voltage.
Wherein, No. 1 pin of described RT9193 cake core U1 is connected with the contact jaw 2 of described on and off switch S1, No. 2 pin ground connection, and No. 3 pins are the electric capacity C1 ground connection of 1uF through capacitance, No. 4 pins are the electric capacity C2 ground connection of 22nF through capacitance, and No. 5 pins are the electric capacity C3 ground connection of 10uF through capacitance; No. 1 pin of described MIC5205 cake core U7 is connected with the contact jaw 2 of described on and off switch S1, No. 3 pins are the electric capacity C9 ground connection of 1uF through capacitance, No. 2 pin ground connection, No. 4 pins are the electric capacity C5 ground connection of 22nF through capacitance, No. 5 pins connect sensor assembly 40, and No. 5 pins are also the electric capacity C8 ground connection of 2.2uF through capacitance.The LDO voltage stabilizing chip package volume of described low voltage difference is little, and structure is simple, is adapted at using in Miniature portable product, the device of each several part can be allowed normally to work in 3.7V lithium battery power supply situation.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 6, in the present embodiment, described electric power detection unit 63 is the resistance R3 of 100k Ω and resistance R5 by two resistances and is composed in series, wherein, the BAT+ that the BAT+ end of described resistance R3 is connected to the contact jaw 1 of described on and off switch S1 altogether with No. 5 pin BAT+ of described charging chip U6 and voltage regulation unit holds, No. 2 pin AIN2 holding AIN2 to connect described main control chip U3 that connect altogether of described resistance R3 and described resistance R5 hold, the other end ground connection of described resistance R5.The cell voltage of described electric power detection unit 63 pairs of Charge Management unit 61 carries out dividing potential drop, is then directly gathered the voltage of described battery by AD, then according to the voltage of described battery and the direct survey calculation of the conversion relation of electricity the dump energy of battery.
As shown in Figure 1, in the present embodiment, described motor drive module 40 comprises motor 41; And with described motor 41 and described main control module 10, and to the H bridge 42 that described motor 41 drives.
Concrete, as shown in Fig. 2, Fig. 5 and Fig. 7, wherein, described H bridge comprises the first PMOS Q2, the second PMOS Q3, the first NMOS tube Q4 and the second NMOS tube Q5; Wherein, the drain electrode of described first PMOS Q2 and the drain electrode of the first NMOS tube Q4 are connected to one end of described motor M (motor 41 namely in Fig. 1) altogether, and the drain electrode of the second PMOS Q3 drain electrode and the second NMOS tube Q5 is connected to the other end of described motor altogether; The grid of described first PMOS Q2 and the grid of metal-oxide-semiconductor Q4 connect altogether, and the control arm 1A forming described H bridge holds, and described control arm 1A holds the MCUA end of No. 20 pins connecting described main control chip U3, and described control arm 1A holds also through resistance R15 ground connection that resistance is 10k Ω; The grid of described second PMOS and the grid of the second NMOS tube connect altogether, the control arm 1B forming described H bridge holds, described control arm 1B holds the MCUB end of No. 19 pins connecting described main control chip U3, and described control arm 1B holds also through resistance R16 ground connection that resistance is 10k Ω; The source electrode of described first PMOS Q2 and the source electrode of metal-oxide-semiconductor Q4 are connected to the 3.3V end of No. 5 pins of described voltage stabilizing chip U1 altogether.Described motor drive module adopts the H bridge built by 4 metal-oxide-semiconductors to carry out motor driving, can control motor positive and inverse easily and move, and circuit structure is simple, highly sensitive, with low cost.
As shown in Figure 1, in the present embodiment, described sensor assembly 20 comprises the metal detection sheet 21 that is connected with described main control module 10 and by constantly inputting pwm signal that main control module 10 sends described metal detection sheet 21 is carried out to the metal-oxide-semiconductor 22 of discharge and recharge.
Concrete, as shown in Fig. 2, Fig. 5 and Fig. 8, described metal detection sheet TEST (the metal detection sheet 21 namely in Fig. 1) is arranged in the medicinal liquid in tube for transfusion, and the source electrode of described metal-oxide-semiconductor Q6 (metal-oxide-semiconductor 22 namely in Fig. 1), grid and drain electrode connect one to one in described Charge Management unit 61, described main control module 10 and described metal detection sheet TEST, described detection sheet metal TEST is made up of two panels sheet metal, described metal-oxide-semiconductor Q6 is 01AH type PMOS, described in its source electrode 2.5V termination, No. 5 pin 2.5V of voltage stabilizing chip U7 hold, draining through resistance is that the resistance R20 of 4.7M Ω and the contact jaw 1 of detection sheet metal TEST are connected to IN end altogether, then the IN end of No. 11 and No. 12 pin extractions of described main control chip U3 is connected, No. 14 pin PWM that grid meets main control chip U3 hold, and control described detection sheet metal TEST by the pwm signal that the main control chip U3 constantly inputting described main control module 10 sends and carry out discharge and recharge, and judge to detect the capacitance size of sheet metal TEST by calculating the discharge and recharge time, because detect sheet metal TEST area to fix, when the liquid level of tube for transfusion inner liquid medicine declines, between in described detection sheet metal TEST, electrolyte can change, its capacitance is changed, thus its discharge and recharge time is changed, therefore can judge whether transfusion completes by calculating the discharge and recharge time detecting sheet metal TEST, contact jaw 2 ground connection of described detection sheet metal TEST.
As shown in Figure 1, described sound and light alarm module 50 comprises buzzer 511 and LED group 521.Concrete, as shown in Figure 9 and Figure 10, described LED group LED-2 (the LED group 521 namely in Fig. 1) comprises color the first different LED D1 and the second LED D2, described first LED D1 is all connected with described main control module 10 with the positive pole of the second LED D2, negative pole is all connected with described power management module 60, audion Q1 is connected with between described buzzer SP1 (buzzer 511 namely in Fig. 1) and described main control module 10, wherein, described main control module 10 is connected to the base stage of described audion Q1, described buzzer SP1 is connected to the colelctor electrode of described audion Q1, the grounded emitter of described audion Q1, described buzzer SP1 is also connected with described power management module 60.
Concrete, as Fig. 2, Fig. 5, shown in Fig. 9 and Figure 10, in the present embodiment, described sound and light alarm module 50 comprises buzzer circuit 51 and LED group circuit 52, wherein, described buzzer circuit 51 comprises buzzer SP1, described buzzer SP1 is connected with described main control module 10 by audion Q1, described audion Q1 is 8050 type NPN type triode, its base stage is that the resistance R1 of 1k Ω is connected with No. 1 pin of main control chip U3 through resistance, colelctor electrode connects the contact jaw 1 of buzzer SP1, grounded emitter, the 3.3V end of No. 5 pins of voltage stabilizing chip U1 described in the 3.3V termination of the contact jaw 2 of described buzzer SP1, described first LED D1 is red, contact jaw 1 is that No. 17 pin LED1 of the LED1 termination main control chip U3 of the resistance R2 of 1k Ω hold through resistance, described second LED D2 is green, its contact jaw 3 connects No. 16 pins of main control chip U3 through the resistance R4 that resistance is 1k Ω, the 3.3V end of No. 5 pins of voltage stabilizing chip U1 described in the 3.3V termination connecing end 2 altogether of described first LED D1 and the second LED D2.Described buzzer SP1 is driven by audion Q1, and it can be allowed to send brighter sound, and red first LED D1 and green second LED D2 is used to refer to the various duty of described intravenous infusion monitoring device respectively.
As shown in Fig. 1, Fig. 5 and Figure 11, described intravenous infusion monitoring device also comprises the jaws control module 30 be all connected with described main control module 10, described power management module 60 and described motor drive module 40, described jaws control module comprises: by opening manually, and controls by described main control module 10 jaws 31 that described motor M pulls clamp; When described jaws 31 is opened, to drive described motor M to pull by described jaws 31 closed, when described jaws 31 clamp, by described control module 10, control the reset switch that described motor M pulls disconnection; Described jaws 31 is arranged on position tube for transfusion is positioned at below described sensor assembly 20, and described jaws 31 and described reset switch S2 are all mechanically connected with described motor M.
Concrete, as shown in Fig. 2, Fig. 5 and Figure 11, the k1 end of No. 10 pins of main control chip U3 described in the k1 termination of the contact jaw 1 of described reset switch S2, the resistance R14 that this contact jaw 1 is also 1k Ω through resistance connects the 3.3V end of No. 5 pins of described voltage stabilizing chip U1, contact jaw 2 ground connection of described reset switch S2.Described venous transfusion checkout gear detects the method for described jaws 31 state by described reset switch S2, be specially: when described reset switch S2 closes, contact jaw 1 and the contact jaw 2 of described reset switch S2 are connected, make the k1 of No. 10 pins of described main control chip U3 hold ground connection, now the state of described jaws 31 correspondence is open mode; When described reset switch S2 disconnects, the k1 end of No. 10 pins of described main control chip U3 connects the 3.3V end of No. 5 pins of described voltage stabilizing chip U1 through described resistance R14, now the state of described clip 31 correspondence is clamp state; When described main control chip U3 is closed by described reset switch S2 or disconnects, the k1 of its No. 10 pins holds the magnitude of voltage detected can judge the state of described jaws 31.
As shown in figure 12, in the present embodiment, described intravenous infusion monitoring device realizes the control to sensor assembly 20, motor drive module 40, clip control module 30, sound and light alarm module 50 and power management module 60 mainly through main control chip U3, and idiographic flow is as follows:
Detect and whether be in charged state, if charged state, then control described green LED lamp D2 Chang Liang, pointing out current is charged state, extinguishes until control green LED lamp D2 at the end of charging; If not charged state, then enter next step;
Whether too lowly detect electricity, if electricity is sufficient, then carry out next step, otherwise control described green LED lamp D2 and glimmer and control buzzer SP1 and sound a buzzer, pointing out current is the too low alarm condition of electricity;
Detect jaws current state, if open mode, then directly carry out next step; If closed condition, then control motor and open jaws, and enter next step;
Time delay is waited for, if delay time arrives, then enters next step;
Calculate the discharge and recharge time, judge transfusion state, if infused, then enter next step;
Control electric machine rotation with clamp tube for transfusion, liquid level of perfusion tube is no longer declined, and enters next step.
Control buzzer to sound a buzzer warnings, continue 30 seconds, control buzzer stopping and sounding a buzzer, and enter next step.
Control red LED lamp D1 flicker, continue 2 minutes, control red LED lamp D1 Chang Liang, and enter next step.
Enter battery saving mode, terminate the monitoring to venous transfusion process.
This utility model is controlled intravenous infusion monitoring device by main control chip, achieves the Intelligent Measurement to venous transfusion process, saves artificial, safe and efficient; This utility model to be powered to intravenous infusion monitoring device by power management module and is carried out power management, ensure that the normal operation of intravenous infusion monitoring device; Whether this utility model detects the liquid level situation in tube for transfusion in real time by sensor assembly, can monitor medicinal liquid timely and effectively and be totally lost, eliminate time and the efforts of personal monitoring; This utility model, by when medicinal liquid is totally lost, is undertaken, from dynamic circuit breaker liquid, ensure that the personal safety of patient by motor drive module; This utility model is too low or carry out sound and light alarm when having infused at intravenous infusion monitoring device electricity by acoustic-optic alarm, enables related personnel obtain transfusion condition in time, ensures patient safety.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. an intravenous infusion monitoring device, it is arranged on tube for transfusion, it is characterized in that, described intravenous infusion monitoring device comprises:
Main control module and the sensor assembly that the liquid level of tube for transfusion inner liquid medicine is detected;
When described sensor assembly detects liquid level lower than pre-set threshold value, tube for transfusion is carried out to the jaws control module of clamp;
Described jaws control module is driven tube for transfusion to be carried out to the motor drive module of clamp;
When tube for transfusion is by clamp, carry out the sound and light alarm module of sound and light alarm prompting;
The power management module of electric energy is provided respectively with described main control module, described sensor assembly, described jaws control module and described sound and light alarm model calling;
Described sensor assembly, described jaws control module and described sound and light alarm module are all connected with described main control module and control by it.
2. intravenous infusion monitoring device as claimed in claim 1, it is characterized in that, described power management module comprises:
Be connected with described main control module, and connect the Charge Management unit that external power source carries out charging;
Maintain the voltage regulation unit of the voltage stabilization of described Charge Management unit;
Be connected with described Charge Management unit, and detect the electric power detection unit of the dump energy of described Charge Management unit in real time.
3. intravenous infusion monitoring device as claimed in claim 2, it is characterized in that, described Charge Management unit comprises the linear-charging chip with constant current/constant voltage output function, and described linear-charging built-in chip type has single-unit lithium ion battery.
4. intravenous infusion monitoring device as claimed in claim 2, it is characterized in that, described power management module also comprises the USB charging inlet unit be connected with described main control module, USB charging inlet unit comprises USB charging inlet, be connected with on and off switch between this USB charging inlet and described voltage regulation unit, between described USB charging inlet and described Charge Management unit, be connected with diode; Wherein, described USB charging inlet is connected to the positive pole of described diode, and described Charge Management unit is connected to the negative pole of described diode.
5. intravenous infusion monitoring device as claimed in claim 4, it is characterized in that, described USB charging inlet is Micro-USB interface.
6. intravenous infusion monitoring device as claimed in claim 1, it is characterized in that, described motor drive module comprises:
Motor; And
Be connected with described motor and described main control module, and to the H bridge that described motor drives;
Described H bridge comprises the first PMOS, the second PMOS, the first NMOS tube and the second NMOS tube; Wherein, the drain electrode of described first PMOS and the drain electrode of the first NMOS tube are connected to one end of described motor altogether, the drain electrode of the second PMOS and the drain electrode of the second NMOS tube are connected to the other end of described motor altogether, the grid of described first PMOS and the grid of the first NMOS tube are connected to terminals of described main control module altogether, and the grid of described second PMOS and the grid of the second NMOS tube are connected to another terminals of described main control module altogether.
7. intravenous infusion monitoring device as claimed in claim 6, it is characterized in that, described intravenous infusion monitoring device also comprises the jaws control module be connected with described main control module, described power management module and described motor drive module, and described jaws control module comprises:
By opening manually, and realize by motor described in described master control module controls the jaws pulling clamp;
Drive described motor to pull when described jaws is opened by described jaws closed, and pulled the reset switch of disconnection when described jaws clamp by motor described in described master control module controls;
Described jaws is arranged on position tube for transfusion is positioned at below described sensor assembly, and described jaws is all connected with described electromechanics with described reset switch.
8. intravenous infusion monitoring device as claimed in claim 2, it is characterized in that, described sensor assembly comprises:
The metal detection sheet be connected with described main control module; And
By constantly inputting pwm signal that main control module sends to carry out the metal-oxide-semiconductor of discharge and recharge to described metal detection sheet;
Described metal detection sheet is arranged in the medicinal liquid in tube for transfusion, and the source electrode of described metal-oxide-semiconductor, grid and drain electrode connect one to one in described Charge Management unit, described main control module and described metal detection sheet.
9. intravenous infusion monitoring device as claimed in claim 1, it is characterized in that, described sound and light alarm module comprises buzzer and LED group, described LED group comprises the first different LED of color and the second LED, the positive pole of described first LED is all connected with described main control module with the positive pole of described second LED, and the negative pole of described first LED is all connected with described power management module with the negative pole of described second LED;
Audion is connected with between described buzzer and described main control module, wherein, described main control module is connected to the base stage of described audion, and described buzzer is connected to the colelctor electrode of described audion, the grounded emitter of described audion, described buzzer is also connected with described power management module.
10. intravenous infusion monitoring device as claimed in claim 1, it is characterized in that, described main control module is single-chip microcomputer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412898.3U CN204864361U (en) | 2015-06-15 | 2015-06-15 | Venous transfusion monitoring devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412898.3U CN204864361U (en) | 2015-06-15 | 2015-06-15 | Venous transfusion monitoring devices |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597202A (en) * | 2016-02-04 | 2016-05-25 | 深圳金亿帝医疗设备股份有限公司 | Atomizer and atomizer main body |
| CN106668985A (en) * | 2016-12-22 | 2017-05-17 | 山东大学 | Real-time monitoring system for transfusion |
| CN106693113A (en) * | 2016-12-22 | 2017-05-24 | 山东大学 | Transfusion monitoring alarm |
| CN110064096A (en) * | 2019-05-27 | 2019-07-30 | 中国科学技术大学 | A kind of infusion alarm and control method |
| CN110361555A (en) * | 2018-03-26 | 2019-10-22 | 成都深迈瑞医疗电子技术研究院有限公司 | Load reagents component, sample reagent loading attachment and chemical illumination immunity analysis instrument |
| CN110737300A (en) * | 2019-10-25 | 2020-01-31 | 吉林北斗航天汽车研究院有限公司 | low-cost low dropout regulator parallel current-expanding equalizing circuit |
-
2015
- 2015-06-15 CN CN201520412898.3U patent/CN204864361U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105597202A (en) * | 2016-02-04 | 2016-05-25 | 深圳金亿帝医疗设备股份有限公司 | Atomizer and atomizer main body |
| CN106668985A (en) * | 2016-12-22 | 2017-05-17 | 山东大学 | Real-time monitoring system for transfusion |
| CN106693113A (en) * | 2016-12-22 | 2017-05-24 | 山东大学 | Transfusion monitoring alarm |
| CN110361555A (en) * | 2018-03-26 | 2019-10-22 | 成都深迈瑞医疗电子技术研究院有限公司 | Load reagents component, sample reagent loading attachment and chemical illumination immunity analysis instrument |
| CN110064096A (en) * | 2019-05-27 | 2019-07-30 | 中国科学技术大学 | A kind of infusion alarm and control method |
| CN110737300A (en) * | 2019-10-25 | 2020-01-31 | 吉林北斗航天汽车研究院有限公司 | low-cost low dropout regulator parallel current-expanding equalizing circuit |
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