CN204106737U - Multifunction infusion alarm - Google Patents

Abstract

The utility model relates to a novel multifunctional infusion alarm, which is mainly characterized in that it includes a single chip microcomputer and connected photoelectric gate sensors, temperature sensors, gravity sensors, keyboards, buzzers, heaters, and LCD display screens. The single-chip microcomputer, temperature sensor, and buzzer are arranged inside the alarm casing, the described LCD display screen and the keyboard are arranged on the front panel of the alarm casing, the gravity sensor and the heater are installed together with the infusion bottle, The alarm casing is set on the thick tube of the infusion tube, and the thick tube of the infusion tube communicates with the infusion bottle through the thin tube of the infusion tube. The utility model has a reasonable design, increases the function of predicting the time required for infusion, the function of blood backflow alarm, the function of instant heating of the liquid medicine and the function of remote alarm, ensures the safety and reliability of the infusion, reduces the pressure of the accompanying personnel, and has the advantages of Rich in functions, safe and reliable, and low in cost.

Description

A New Multifunctional Infusion Alarm

technical field

The utility model belongs to the technical field of medical equipment, in particular to a novel multifunctional transfusion alarm.

Background technique

Today, with the rapid development of society, people's life rhythm is greatly accelerated; in the hospital, patients with infusion vials often do not have family members or nurses to accompany them at all times. If the infusion is not removed in time after infusion, the blood backflow phenomenon caused by incorrect infusion posture will cause unnecessary danger. In addition, since the infusion takes a long time, it is not known when the infusion will be completed and what emergencies may occur during the infusion process, which brings a certain burden to the patient and the bed companion.

At present, the existing infusion alarms detect the amount of infusion medicine through sensing equipment, and generate corresponding signals for processing, so as to achieve the purpose of alarming when the infusion is about to be completed. The sensing devices used in the infusion alarm can be divided into photoelectric non-contact sensors, weight sensors, and photogate sensors for detecting non-stop moving water droplets. Existing infusion alarms generally have a single detection method, large detection data errors, and few functions, which are difficult to meet actual needs.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art, and provide a novel multifunctional infusion alarm with reasonable design, safety, reliability and complete functions.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A novel multifunctional infusion alarm, comprising a photogate sensor, a temperature sensor, a gravity sensor, a keyboard, a single-chip microcomputer, a buzzer, a heater and an LCD display, and the single-chip microcomputer is connected with the photoelectric gate sensor, the temperature sensor, and the gravity sensor respectively. , keyboard, buzzer, heater, and LCD display are connected, and the single-chip microcomputer processes the data input by the photogate sensor, temperature sensor, gravity sensor, and keyboard and controls the work of the buzzer, heater, and LCD display. The single-chip microcomputer, temperature sensor and buzzer are arranged inside the alarm casing, the LCD display and the keyboard are arranged on the front panel of the alarm casing, the gravity sensor and the heater are installed together with the infusion bottle, and the alarm The machine casing is set on the thick tube of the infusion tube, and the thick tube of the infusion tube communicates with the infusion bottle through the thin tube of the infusion tube.

Moreover, the single-chip microcomputer is also connected with a wireless transceiver, which is arranged in the alarm casing and sends alarm information to the nurse's station in a wireless manner.

Moreover, the wireless transceiver adopts NRF24L01 wireless transceiver module.

Advantage and positive effect of the present utility model are:

1. This infusion alarm combines the gravity sensor, temperature sensor and photogate sensor through a single-chip microcomputer, which increases the function of predicting the time required for infusion, the function of blood backflow alarm and the function of instant heating of the liquid: through the photogate sensor to detect the drug When the liquid drips, realize the function of predicting the infusion time and alarm when the infusion is completed; monitor the weight of the liquid medicine in the medicine bottle in real time through the gravity sensor, and combine the photogate sensor to detect the liquid medicine dripping to judge whether blood backflow occurs; detect the blood flow through the temperature sensor The temperature of the liquid medicine is controlled by the heater to change the temperature of the liquid medicine, which ensures the safety and reliability of the infusion, and has the characteristics of rich functions, safety and reliability, and low cost.

2. The infusion alarm can also send an alarm to the remote nurse station through wireless, so as to realize the remote alarm function, which is beneficial for the medical staff to deal with it in time, and also reduces the pressure on the accompanying staff.

Description of drawings

Fig. 1 is the circuit block diagram of the present utility model;

Fig. 2 is the installation schematic diagram of the utility model;

Fig. 3 is a circuit diagram (part 1) of the present utility model;

Fig. 4 is a circuit diagram (part 2) of the present utility model;

Fig. 5 is a schematic diagram of the wireless connection between the utility model and the nurse's station.

Among them, 1: thick tube of infusion tube, 2: alarm casing, 3 gravity sensor, 4: heater, 5: infusion bottle, 6: thin tube of infusion tube.

Detailed ways

Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail:

A novel multifunctional transfusion alarm, as shown in Figure 1, comprises a photogate sensor, a temperature sensor, a gravity sensor, a keyboard, a single-chip microcomputer, a buzzer, a wireless transceiver, a heater and an LCD display, and the single-chip microcomputers are respectively Connect with the photogate sensor, temperature sensor, gravity sensor, keyboard, buzzer, wireless transceiver, heater, LCD display, and the single-chip microcomputer processes and logics the data input by the photogate sensor, temperature sensor, gravity sensor, and keyboard Judging and driving the buzzer, wireless transceiver, heater, and LCD display to work. The single-chip microcomputer communicates with the nurse station in a wireless way through a wireless transceiver to realize the remote alarm function.

As shown in FIG. 2 , the single-chip microcomputer, wireless transmitter, temperature sensor and buzzer in the infusion alarm are arranged inside the alarm casing 2 . The LCD display and the keyboard are set on the front panel of the alarm casing. The LCD display is used for information display (such as displaying the remaining liquid capacity, liquid flow rate, time required for infusion, etc.), and the keyboard includes a key for inputting the liquid capacity. Number keys 0-9 and the stop key to stop the buzzer alarm. The gravity sensor 3 is installed on the bottom of the infusion bottle 5 to measure the weight of the infusion bottle, and the heater 4 is installed together with the infusion bottle to heat the medicinal liquid in the infusion bottle. The gravity sensor and the heater communicate with the alarm through the data line The single-chip microcomputer inside the casing is connected. The alarm casing is set on the thick tube 1 of the transfusion tube, and the thick tube of the transfusion tube communicates with the infusion bottle through the thin tube 6 of the transfusion tube.

The specific circuit composition of this infusion alarm is shown in Figure 3 and Figure 4, and the single-chip microcomputer adopts AT89C51 single-chip microcomputer. One port of the photogate sensor is grounded, and the other port is connected to P1.0 of the microcontroller. One port of the temperature sensor is grounded, and the other port is connected to P1.1 of the microcontroller. One port of the gravity sensor is grounded, and the other port is connected to P0.2 of the microcontroller. One port of the buzzer is grounded, the other port is connected to the collector of the 8550PNP triode, the emitter of the triode is connected to VCC, and the base of the triode is connected to P0.0 of the microcontroller through a 10KΩ resistor. The heater is a 10Ω resistor, one end is connected to a 5V power supply, and the other end is connected to the microcontroller P0.2. The keyboard includes 11 keyboard buttons, namely S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, and S10, and their ports are respectively connected to P2.0, P2.1, and P2 of the microcontroller. 2. P2.3, P2.4, P2.5, P2.6, P2.7, P0.7, P0.6, P0.1, the other end is connected to 5V power supply through 1KΩ resistor. The LCD display uses LCD12864, RS is connected to P1.2, R/W is connected to P1.3, E is connected to P1.4, DB0 is connected to P1.5, DB1 is connected to P1.6, DB2 is connected to P1.7 Connected, DB3 is connected to P3.0, DB4 is connected to P3.1, DB5 is connected to P3.2, DB6 is connected to P3.3, DB7 is connected to P3.4, DB7 is connected to P3.5, PSB is connected to P3.6 , RST is connected with P3.7. GND is connected to ground, VCC is connected to high level, VO is connected to sliding rheostat, LEDA is connected to high level, and LEDK is connected to ground. The XTAL1, XTAL2 and GND interfaces of the single-chip microcomputer together form the crystal oscillator circuit of the single-chip microcomputer. The wireless transceiver adopts NRF24L01 wireless transceiver module, which is a single-chip wireless transceiver chip in the ISM frequency band of 2.4GHz to 2.5GHzz. D1 of the wireless receiver is connected to P10 of the microcontroller, D2 is connected to P11 of the microcontroller, and D3 is connected to P12 and D4 of the microcontroller. Connect P13 of the microcontroller.

The infusion alarm is installed in the ward, and the infusion alarm in each ward uses wireless mode to transmit data with the nurse station to realize the remote alarm function, as shown in Figure 5.

The working principle of the utility model is: the data collected by the data acquisition device (photoelectric gate sensor, temperature sensor, gravity sensor) and the data input by the keyboard are transmitted to the single-chip microcomputer, and the single-chip microcomputer analyzes the above-mentioned data and calculates the time required for the estimated transfusion, and the transfusion is completed Timely and timely alarm (including local buzzer alarm and remote nurse station alarm), in addition, the single-chip microcomputer can also realize the instant heating function to the liquid medicine through the heater. The following describes the control principle of the single-chip microcomputer:

(1) Estimated time required for infusion: before the infusion, the nurse inputs the total volume V of the infusion liquid to the infusion alarm through the keyboard. The volume v of each drop of liquid is obtained by calculating the average value after collecting data through investigation. The single-chip computer predicts the time required for infusion t=V/nv; and displays the obtained results through the LCD display.

(2) Blood backflow alarm function: the photoelectric gate sensor measures the number of drops per unit time n, and the liquid dripping speed v is obtained through corresponding calculation; the single-chip microcomputer performs logic relationship judgment: first, the weight measured by the gravity sensor is not less than the alarm weight M1, Secondly, the photogate sensor has not detected the dripping of the medicine within 5 seconds; finally, if the above two conditions are met at the same time, the buzzer of the infusion alarm will give a warning, prompting the patient to return blood.

(3) Immediate alarm function after infusion: the photoelectric gate sensor measures the number of drops per unit time n, and the liquid dripping speed v is obtained through corresponding calculation; the single-chip microcomputer performs logical relationship judgment: first, the weight measured by the gravity sensor is less than the alarm weight M1, Secondly, the photoelectric gate sensor detects that the dripping speed of the liquid is less than the alarm speed v1 and the volume of the liquid is less than V1; if the above conditions are met, the infusion alarm sends a wireless signal of a specific frequency to the nurse's desk, and the receiver of the nurse's desk receives the signal, and according to the different frequency voice Prompt that a specific bed needs to be replaced, and the buzzer will sound an alarm to remind the patient to pay attention.

(4) Immediate heating function of the liquid medicine: the temperature t1 of the infusion liquid is obtained by the temperature sensor; the single-chip microcomputer performs logical relationship judgment: t1 is less than the optimum temperature t2 of the human body of the infusion liquid; if the condition is met, the infusion heater is started to heat the liquid; When the liquid temperature reaches t2, the heating stops.

The above explanation of principle is only for detailed description of this infusion alarm, and the analysis and processing software inside the single-chip microcomputer is conventional software, which is not the content of the invention of the present utility model.

It should be emphasized that the embodiments described in the utility model are illustrative rather than restrictive, so the utility model includes but not limited to the embodiments described in the specific implementation, and those skilled in the art according to the utility model Other implementations derived from the new technical solution also belong to the scope of protection of the utility model.

Claims (3)

1. A novel multifunctional transfusion alarm, is characterized in that: comprise photoelectric gate sensor, temperature sensor, gravity sensor, keyboard, single-chip microcomputer, buzzer, heater and LCD display screen, described single-chip microcomputer is connected with photoelectric gate sensor respectively , temperature sensor, gravity sensor, keyboard, buzzer, heater, and LCD display are connected, and the single-chip microcomputer processes the data input by the photogate sensor, temperature sensor, gravity sensor, and keyboard and controls the buzzer, heater, and LCD The display screen is working, the single-chip microcomputer, temperature sensor, and buzzer are arranged inside the alarm casing, and the described LCD display and keyboard are arranged on the front panel of the alarm casing, and the gravity sensor, the heater and the infusion bottle Installed together, the alarm casing is set on the thick tube of the infusion tube, and the thick tube of the infusion tube communicates with the infusion bottle through the thin tube of the infusion tube. 2. The novel multifunctional transfusion alarm according to claim 1, characterized in that: the single-chip microcomputer is also connected with a wireless transceiver, which is arranged in the alarm casing and sends the alarm to the nurse's station in a wireless manner. Alarm information. 3. The novel multifunctional infusion alarm according to claim 2, characterized in that: said wireless transceiver adopts NRF24L01 wireless transceiver module.