CN221600889U - Low level detecting alarm device for hanging bottle - Google Patents

Abstract

The utility model discloses a low-level detection alarm device for a hanging bottle, which comprises a fixed rod, a transfusion tube and a detection alarm device body, wherein a drip cup is arranged on the transfusion tube, one side of the detection alarm device body is fixed on the fixed rod, the other side of the detection alarm device body is provided with a limit groove matched with the transfusion tube and the drip cup, the detection alarm device body comprises a shell and an internal element, an indicator lamp, an alarm and a motor control structure are arranged on the shell, the internal element comprises a control panel, the control panel is electrically connected with the indicator lamp, the alarm and the motor control structure, the control panel comprises a main controller, a power supply circuit, a liquid drop detection circuit, a liquid drop acquisition signal conditioning circuit, an audible-visual alarm circuit, a motor driving circuit and a wireless communication module, the motor control structure comprises a motor, a first baffle, a second baffle, a third baffle, a screw and a slide block, one end of the screw and the motor are fixed through a bearing, and the other end of the screw is fixed with the slide block.

Description

Low level detecting alarm device for hanging bottle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a low-level detection alarm device for a hanging bottle.

Background

Intravenous infusion is an important clinical treatment means, has the advantages of rapid administration, rapid effect, small stimulation and the like, and is widely applied in clinical medicine. At present, when a hospital inpatient is in infusion in a transfusion bottle, the liquid level state needs to be observed manually, and if the infusion time is long, the liquid level state can be forgotten to be observed by an observer due to negligence. Especially in late night, medical staff can not find that transfusion is finished in time because of tiredness and difficulty in observation or dozing, and often cause blood reflux and delay treatment of patients.

Disclosure of utility model

The utility model provides a low-level detection alarm device for a hanging bottle, which reduces the working intensity of medical staff, reduces nursing mistakes, improves service quality and avoids the defect of naked eye monitoring of the medical staff.

In order to solve the technical problems, the low-level detection alarm device for the infusion bottle comprises a fixed rod, an infusion tube and a detection alarm device body, wherein a drip cup is arranged on the infusion tube, one side of the detection alarm device body is fixed on the fixed rod, a limit groove matched with the infusion tube and the drip cup is formed in the other side of the detection alarm device body, the detection alarm device body comprises a shell and an inner element, an indicator lamp, an alarm and a motor control structure are arranged on the shell, and the inner element comprises a control panel which is electrically connected with the indicator lamp, the alarm and the motor control structure.

In the above or some embodiments, the motor control structure includes a motor, a first baffle, a second baffle, a third baffle, a screw rod and a slider, one end of the screw rod is fixed with the motor through a bearing, the other end of the screw rod is fixed with the slider, and the motor can slide between the second baffle and the third baffle through the screw rod control slider.

In the above or some embodiments, the control panel includes a main controller, a power circuit, a droplet detection circuit, a droplet collection signal conditioning circuit, an audible and visual alarm circuit, a motor drive circuit, and a wireless communication module.

In the above or some embodiments, the main controller includes a single chip microcomputer, a reset circuit, a crystal oscillator circuit and a clock circuit, and the single chip microcomputer is electrically connected with the reset circuit, the crystal oscillator circuit and the clock circuit.

In the above or some embodiments, the droplet detection circuit is electrically connected to the droplet collection signal conditioning circuit.

In the above or some embodiments, the power circuit supplies power to the main controller, the droplet detection circuit, the droplet collection signal conditioning circuit, the audible and visual alarm circuit, the motor driving circuit and the wireless communication module.

In the above or some embodiments, the indicator light and the alarm are electrically connected with the main controller through an audible and visual alarm circuit, the motor control structure is electrically connected with the main controller through a motor driving circuit, and the main controller is electrically connected with the wireless communication module.

The utility model has the beneficial effects that: whether the drip can drops or not is detected by the drip detection circuit, and signals with irregular shapes are amplified and shaped by the drip collecting signal conditioning circuit to obtain smooth signals and are input into the main controller, when the main controller cannot receive the signals or the signals are abnormal, namely, when transfusion is finished, the main controller enables the indicator lamp and the alarm to work through the audible and visual alarm circuit, reminds a patient and a person to accompany, and drives the motor to work, the motor controls the sliding block to slide and squeeze the infusion tube through the screw rod to reduce the drip speed or stop transfusion, and meanwhile, the information which cannot collect the drip is transmitted to medical staff through the wireless communication module, so that the medical staff can timely process the information, prevent blood backflow and ensure that the patient has good treatment.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic diagram of droplet signal acquisition in accordance with the present utility model.

Fig. 3 is a circuit diagram of a master controller of the present utility model.

Fig. 4 is a power circuit diagram of the present utility model.

Fig. 5 is a circuit diagram of the droplet detection of the present utility model.

Fig. 6 is a circuit diagram of a droplet pickup signal conditioning circuit of the present utility model.

Fig. 7 is a circuit diagram of an audible and visual alarm of the present utility model.

Fig. 8 is a diagram of a motor driving circuit of the present utility model.

In the figure: 1. a fixed rod; 2. an infusion tube; 3. detecting an alarm device body; 4. dropping a kettle; 5. a limit groove; 6. a housing; 7. an indicator light; 8. an alarm; 9. a motor; 10. a first baffle; a second baffle 11; 12. a third baffle; 13. a screw rod; 14. a slide block; 15. an infrared emitting diode; 16. an infrared phototransistor; 17. and (3) liquid drops.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

As shown in fig. 1, the low-level detection alarm circuit for the hanging bottle comprises a fixing rod 1, a transfusion tube 2 and a detection alarm device body 3, wherein a drip cup 4 is arranged on the transfusion tube 2, one side of the detection alarm device body 3 is fixed on the fixing rod 1, the detection alarm device body 3 is firmly fixed on the fixing rod, a limit groove 5 matched with the transfusion tube 2 and the drip cup 4 is arranged on the other side of the detection alarm device body 3, the drip cup 4 is placed in the limit groove, liquid drops of the drip cup 4 are conveniently detected, the detection alarm device body 1 comprises a shell 6 and an internal element, an indicator lamp 7, an alarm 8 and a motor control structure are arranged on the shell 6, the internal element comprises a control panel, the control panel is electrically connected with the indicator lamp 7, the alarm 8 and the motor control structure, the motor control structure comprises a motor 9, a first baffle 10, a second baffle 11, a third baffle 12, a screw rod 13 and a slide block 14, one end of the screw rod 13 and the motor 9 are fixed through bearings, the other end of the screw rod 13 is fixed with the slide block 14, and the motor 9 can slide between the second baffle 11 and the third baffle 12 through the screw rod 13 control slide block 14.

The control panel comprises a main controller, a power supply circuit, a liquid drop detection circuit, a liquid drop acquisition signal conditioning circuit, an audible and visual alarm circuit, a motor driving circuit and a wireless communication module, wherein the power supply circuit supplies power to the main controller, the liquid drop detection circuit, the liquid drop acquisition signal conditioning circuit, the audible and visual alarm circuit, the motor driving circuit and the wireless communication module, and the liquid drop detection circuit is electrically connected with the liquid drop acquisition signal conditioning circuit.

As shown in fig. 3, the main controller includes a single-chip microcomputer, a reset circuit, a crystal oscillator circuit and a clock circuit, the single-chip microcomputer is electrically connected with the reset circuit, the crystal oscillator circuit and the clock circuit, the single-chip microcomputer can adopt a single-chip microcomputer STM32F103RBT6 as an embodiment, a single-chip microcomputer STM32 pin BOOT0 is grounded through a resistor R1, a single-chip microcomputer STM32 pin PB2/BOOT1 is grounded through a resistor R2, a single-chip microcomputer STM32 pin VDDA is connected with a capacitor C1 anode, one end of the capacitor C2 is connected with a power supply 3.3V in parallel, a single-chip microcomputer STM32 pin VSSA is connected with a capacitor C1 cathode, the other end of the capacitor C2 is connected with a ground, a single-chip microcomputer STM32 pin VBAT is connected with a power supply 3.3V in parallel through a light emitting diode D1, and single-chip microcomputer STM32 pins vdd_1, vdd_2, vdd_3 and vdd_4 are connected with power supplies 3.3V, and single-chip microcomputer STM32 pins vss_1, vss_2, vss_3 and vss_4 are grounded; in the reset circuit, a pin NRST of the singlechip STM32 is connected with a power supply 3.3V through a resistor R3 and grounded through a capacitor C3; IN the crystal oscillator circuit, an SCM 32 pin OSC_IN is connected with one end of a crystal oscillator Y1 and is grounded through a capacitor C4, an SCM 32 pin OSC_OUT is connected with the other end of the crystal oscillator Y1 and is grounded through a capacitor C5, an SCM 32 pin OSC32_IN is connected with one end of a crystal oscillator Y2 and is grounded through a capacitor C6, and an SCM 32 pin OSC32_OUT is connected with the other end of the crystal oscillator Y2 and is grounded through a capacitor C7.

As shown in FIG. 4, the power supply circuit can be powered by a battery, a computer USB or a charger, the positive electrode of the power supply is connected with pins 1 and 3 of a switch SW1, pins 2 and 6 of the switch SW1 are connected with one end of a capacitor C8, the anode of a light emitting diode D2, one end of a capacitor C9 and pin 1 of a voltage stabilizer AMS1117-5.0, the cathode of the light emitting diode D2 is connected with one end of a resistor R4, the voltage stabilizer AMS1117-5.0 pins 2 and 4 outputs 5V in parallel with one end of a capacitor C10, one end of a capacitor C11 and 3.3 pin 1 of the voltage stabilizer AMS1117-3.3, one end of a capacitor C12, 11, 10, 9, the other end of the resistor R4, the other end of the capacitor AMS1117-5.0 pin 3 and the pin 3 of the voltage stabilizer AMS1117-3.3 are connected with the negative electrode of the power supply and grounded, and the power supply circuit provides 3.3V voltage for the liquid drop detection circuit, the acousto-optic motor, the motor and the liquid drop acquisition signal conditioning circuit.

As shown in fig. 5 and 2, in the drop detection circuit, a 5V power supply is connected to one end of a resistor R5 and one end of a resistor R6, the other end of the resistor R5 is connected to the anode of an infrared light emitting diode D3, the other end of the resistor R6 is connected to the collector of an infrared phototriode HS0038B, the emitter of the infrared phototriode HS0038B is connected to the cathode of the infrared light emitting diode D3 and is grounded, when no drop is placed in the drip cup, infrared light is not weakened, the infrared phototriode HS0038B receives stronger infrared light, so that a larger photocurrent is output, when a drop drops, an infrared light signal is attenuated, and the infrared phototriode HS0038B outputs a smaller current.

As shown in fig. 6, in the droplet collecting signal conditioning circuit, the pins 1, 6, 7, 8, 9, 10, 11, 12, 13 and 14 of the comparator LM339 are connected to the ground, the pin 5 of the comparator LM339 is connected to the sliding end of the sliding rheostat R7, one end of the sliding rheostat R7 is connected to the power supply 3.3V and the pin 3 of the comparator LM339, the other end of the sliding rheostat R7 is grounded, the pin 2 of the comparator LM339 is connected to the resistor R8 and the pin PA1 of the singlechip STM32 through the inverter 74LS14, the voltage comparator LM339 is used to realize droplet collecting signal shaping, the sensitivity of the comparator LM339 is high, the structure is simple, but the anti-interference capability is poor, the six-way schmitt trigger inverter chip 74LS14 is used to convert the slowly-varying signal into a jitter-free and clear signal, the anti-interference capability of the system is enhanced, and the droplet detecting circuit is electrically connected with the droplet collecting signal conditioning circuit.

As shown in fig. 7, a power supply 5V in the audible and visual alarm circuit is connected with one end of a resistor R9, the other end of the resistor R9 is connected with a light emitting diode cathode D4 and one end of an alarm LS, the other end of the alarm LS is connected with a collector of a triode Q2, an emitter of the triode Q2 is grounded, a base electrode of the triode Q2 is connected with an anode of the light emitting diode D4 and one end of a resistor R10, the other end of the resistor R10 is connected with a pin PC11 of a singlechip STM32, when transfusion completion or abnormal liquid medicine dripping speed is detected, the light emitting diode 7 lights, and the alarm 8 alarms to be treated by medical staff.

As shown in fig. 8, the motor driving circuit adopts a chip ULN2003L, pins 1, 2, 3 and 4 of the chip ULN2003L are respectively connected with pins PA2, PA3, PA4 and PA5 of STM32 through an inverter 74LS14, pin 8 of the chip ULN2003L is grounded, pin 9 of ULN2003L is connected with a 5V power supply, pins 13, 14, 15 and 16 of ULN2003L can be connected with a 15BY20L01 type permanent magnet deceleration stepping motor, when the completion of transfusion or abnormal liquid medicine dripping speed is detected, the singlechip STM32 gives out an audible and visual alarm and drives the motor 9 to work, the motor 9 controls the sliding block 14 to slidably extrude the transfusion tube 2 to reduce dripping speed or stop transfusion, and meanwhile, information which cannot be acquired into liquid drops is transmitted to medical staff through a wireless communication module so that the medical staff can timely perform treatment, blood reflux is prevented, and good treatment is ensured for the patient.

The utility model is particularly and practically used, through the arrangement of a control panel, an indicator lamp 7, an alarm 8 and a motor control structure, the control panel comprises a main controller, a power supply circuit, a droplet detection circuit, a droplet collecting signal conditioning circuit, an audible and visual alarm circuit, a motor driving circuit and a wireless communication module, the motor control structure comprises a motor 9, a first baffle 10, a second baffle 11, a third baffle 12, a screw rod 13 and a sliding block 14, firstly, the droplet detection circuit detects whether droplets drip in a drip cup, and amplifies and shapes an irregularly-shaped signal through the droplet collecting signal conditioning circuit to obtain a smooth signal and inputs the smooth signal into the main controller, when the main controller cannot receive the signal or the signal is abnormal, namely, when the transfusion is finished, the main controller enables the indicator lamp 7 and the alarm 8 to work through the audible and visual alarm circuit, reminds a patient and a attendant, and drives the motor 9 to work, the motor 9 controls the sliding block 14 to slide and squeeze the transfusion tube 2 through the screw rod 13 to reduce the dripping speed or stop transfusion, and meanwhile, information which cannot collect the droplets is transmitted to medical staff through the wireless communication module, so that the medical staff can timely process, and the medical staff can prevent backflow, and the patient has good blood treatment.

Claims (7)

1. The utility model provides a transfusion bottle low level detection alarm device, includes dead lever (1), transfer line (2) and detects alarm device body (3), its characterized in that, be provided with on transfer line (2) and drip the kettle (4), it fixes to detect alarm device body (3) one side on dead lever (1), detect alarm device body (3) opposite side be provided with transfer line (2) and drip kettle (4) assorted spacing recess (5), detect alarm device body (3) including casing (6) and inner component, set up pilot lamp (7), alarm (8) and motor control structure on casing (6), inner component includes control panel, control panel is connected with pilot lamp (7), alarm (8) and motor control structure electricity.

2. The hanging bottle low-level detection alarm device according to claim 1, wherein the motor control structure comprises a motor (9), a first baffle (10), a second baffle (11), a third baffle (12), a screw rod (13) and a sliding block (14), one end of the screw rod (13) and the motor (9) are fixed through a bearing, the sliding block (14) is fixed at the other end of the screw rod (13), and the motor (9) can control the sliding block (14) to slide between the second baffle (11) and the third baffle (12) through the screw rod (13).

3. The overhead bottle low level detection alarm device of claim 1, wherein the control panel comprises a main controller, a power circuit, a droplet detection circuit, a droplet acquisition signal conditioning circuit, an audible and visual alarm circuit, a motor drive circuit, and a wireless communication module.

4. The device of claim 3, wherein the main controller comprises a single chip microcomputer, a reset circuit, a crystal oscillator circuit and a clock circuit, and the single chip microcomputer is electrically connected with the reset circuit, the crystal oscillator circuit and the clock circuit.

5. A low level detection alarm device for a hanging bottle according to claim 3, wherein the drop detection circuit is electrically connected with the drop acquisition signal conditioning circuit.

6. The low level detection alarm device of claim 3, wherein the power circuit provides power to a main controller, a droplet detection circuit, a droplet acquisition signal conditioning circuit, an audible and visual alarm circuit, a motor drive circuit, and a wireless communication module.

7. The low-level detection alarm device for the hanging bottle according to claim 1 or 6, wherein the indicator lamp (7) and the alarm (8) are electrically connected with a main controller through an audible and visual alarm circuit, the motor control structure is electrically connected with the main controller through a motor driving circuit, and the main controller is electrically connected with the wireless communication module.