CN209347799U - A liquid drop rate monitor - Google Patents

Abstract

The utility model discloses a liquid drip speed monitor, which is characterized in that the monitor is a liquid speed measuring device formed by parallel connection of a key control module, a display module, an audible and visual alarm module, a speed detection module and a single-chip microcomputer, and the single-chip microcomputer will The input infusion speed is compared with the set infusion speed value. When the infusion speed is greater than the upper limit or less than the lower limit or zero, the MCU outputs a signal to the sound and light alarm module for a buzzer alarm to remind the medical staff to adjust the liquid infusion speed. Compared with the prior art, the utility model has the advantages of simple structure, low cost, small volume, easy to use and carry, high real-time performance and accuracy, real-time speed is displayed by the digital tube, and when the threshold value is exceeded, the utility model will alarm, effectively reducing the infusion rate. It is an effective and reliable infusion auxiliary device, which is easy to promote and use in civilian wards, effectively reduces the cost of medical staff, and at the same time ensures the safety of patients' infusion.

Description

A liquid drop rate monitor

technical field

The utility model relates to the technical field of liquid flow velocity detection, in particular to a liquid drop velocity monitor which detects the drop velocity by infrared reception and emission and performs judgment processing.

Background technique

At present, the monitoring of hospital infusion is mainly manual. Doctors need to judge the next step of treatment according to the patient's infusion situation. Therefore, the accuracy and timeliness of monitoring in the infusion room are very important. This need. Now ICU and other advanced intensive care units are equipped with liquid speed monitoring devices, which generally use infusion pumps with control devices, apply computer closed-loop control, database comparison data, etc., and intelligently adjust the flow of liquid medicine according to the patient's vital signs and other corresponding conditions Infusion rate.

The infusion monitoring system in the prior art is generally composed of infusion pumps, peristaltic pumps, bedside infusion base stations, multi-parameter monitors, central monitoring and infusion control servers, etc. The cost is high and the equipment is complicated, so it cannot be applied to a wide range of general medical rescue middle.

Utility model content

The purpose of the present invention is a kind of liquid drip speed monitor designed for the deficiencies in the prior art, adopts the single-chip microcomputer structure that liquid speed measurement module is connected, realizes liquid drip counting and speed measurement, and can give the display by digital tube of drip count speed measurement, When the speed is greater than the set upper limit or less than the set lower limit, an alarm will be given, and the LED warning light will flash to remind the medical staff to manually adjust the speed of liquid dripping. The structure is simple, the cost is low, the volume is small, and it is easy to use and carry. With high real-time performance and accuracy, it is an effective and reliable infusion auxiliary device, which is convenient for popularization and use in civilian wards, effectively reduces the cost of medical staff, and at the same time ensures the safety of patient infusion.

The purpose of this utility model is achieved in this way: a liquid drip speed monitor, which is characterized in that the monitor is composed of a key control module, a display module, an acousto-optic alarm module, a speed detection module and a single-chip microcomputer. , the button control module is connected with the P1.0-1.1.4 pins of the single-chip microcomputer; the display module is selected with the P0.0-0.3 pins of the single-chip microcomputer, and connected with the P2.0-2.7 pins for segment Select; the sound and light alarm module is connected with the P0.4-0.5 pin of the single-chip microcomputer; the speed detection module is connected with the P0.6 pin of the single-chip microcomputer, and the speed detection module inputs the drip speed measured into the single-chip microcomputer, when exceeding the threshold The single-chip microcomputer outputs signals to the sound and light alarm module for buzzer alarm.

The single-chip microcomputer compares the input drip speed with the set drip speed value, and when the drip speed is greater than the upper limit or less than the lower limit and is zero, the single-chip output signal is sent to the sound and light alarm module for a buzzer alarm to remind the medical staff The personnel adjusts the speed of the liquid infusion.

The button control module is equipped with five function keys of upper limit mode, lower limit mode, increase, decrease, and stop/run. The infusion speed is set by adjusting the increase and decrease of the upper and lower limits, and the stop/run key is selected to control the entire system Run and stop.

Compared with the prior art, the utility model has the advantages of simple structure, low cost, small volume, easy to use and carry, real-time performance and accuracy meet the infusion situation of ordinary medical treatment, the speed of the measured liquid drop is displayed by the digital tube in real time, when the speed exceeds The threshold value will give an alarm, making the infusion safer and more secure. When there is blood back in the infusion, the system will remind the medical staff from both visual and auditory aspects, effectively reducing the risk of infusion, facilitating the popularization and use of civilian wards, and effectively reducing the cost of medical care. It is an effective and reliable infusion auxiliary device, and it can be improved according to different needs. Compared with system integration, it is more flexible and adjustable. It can not only meet the speed of hospital infusion It can be used for monitoring, and it can also be used for the counting of tablet bottling and the counting of products produced in factories.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

Referring to accompanying drawing 1, the utility model is by the liquid velocity measuring device that button control module 2, display module 3, sound and light alarm module 4 and speed detection module 5 and single-chip microcomputer 1 are connected in parallel; Described speed detection module 5 will measure The drip speed is input into the single-chip microcomputer 1, and when the threshold value is exceeded, the single-chip microcomputer 1 outputs a signal to the sound and light alarm module 4 for buzzer alarm.

The single-chip microcomputer 1 adopts the multifunctional experimental development board of STC89C51 as the control core, realizes the function of measuring the speed of liquid infusion, records the result and can give a display through the digital tube of the display module 3, and feeds back to the single-chip microcomputer 1 according to the speed measurement result, and the input drip speed Compared with the set infusion speed value, when the infusion speed is greater than the upper limit or less than the lower limit and the blood return is detected, that is, the drop speed is 0 or zero, the single-chip microcomputer 1 outputs a signal to the sound and light alarm module 4 to make a buzzer Alarm, and the LED warning light flashes, thereby reminding medical staff to manually adjust the speed of liquid infusion.

The key control module 2 is provided with five function keys of upper limit mode, lower limit mode, increase, decrease and stop/run, by adjusting the increase and decrease of the upper and lower limits to set the infusion speed, and selecting the stop/run key to control the entire System running and stopping.

The display module 3 is connected to the P0.0-0.3 pins of the single-chip microcomputer 1 for bit selection, and connected to the P2.0-2.7 pins of the single-chip microcomputer 1 for segment selection. After realizing the function of measuring the speed of liquid drops, the single-chip microcomputer 1 records the result And can give real-time display through the digital tube. The dynamic display of the digital tube is mainly designed by using the visual sense of the human eye. Generally speaking, if the display frequency is too slow, there will be intermittent display. If the display frequency is accelerated, the human eye will not be able to distinguish this visual residue. . The display function of the digital tube is realized by setting the selection value of the a~h section of 0~9 and the selection value of 4 digits. The function of displaying the number is to obtain the value of each digit through division and remainder of the calculated number. Then select the display through the array selection.

The sound and light alarm module 4 is connected to the P0.4-0.5 pin of the single-chip microcomputer 1, wherein the buzzer is connected to the P0.4 pin of the single-chip microcomputer 1, and the monitoring of the upper and lower limit speeds is increased, and the speed is displayed in real time through the digital tube , when the threshold is exceeded, an alarm will be issued. When there is blood return in the infusion, the system will remind the medical staff from both visual and auditory aspects, which effectively reduces the risk of infusion and makes the infusion safer and more secure.

The speed detection module 5 is composed of an infrared transmitting and receiving tube and an lm393 comparator, and can display liquid drip counting and speed measurement through a digital tube.

The utility model works like this: when the nth drop of liquid falls, the infrared transmitting and receiving tube of the speed detection module 5 transmits the detected signal to the single-chip microcomputer 1, and now the single-chip microcomputer 1 starts counting, when the n+1 drop of liquid falls , the speed detection module 5 feeds back the speed measurement result to the single-chip microcomputer 1. At this time, the single-chip microcomputer 1 stops timing, calculates the recorded time, and updates the current speed in real time. When the speed is greater than the upper limit or less than the lower limit, the single-chip microcomputer 1 outputs a signal to the sound and light alarm module 4 to make the buzzer alarm; if blood return is detected, that is, the falling speed of the droplet is 0, the single-chip microcomputer 1 outputs a signal to the sound and light alarm module 4. Make the buzzer alarm and the LED warning light flash, thereby reminding the medical staff to manually adjust the speed of liquid dripping.

When the utility model is applied to tablet bottling and counting: the empty medicine bottle is placed under the tablet assembly line, and the tablet slides down one piece at a time. When the first slide occurs, the infrared transmitting and receiving tube of the speed detection module 5 transmits the detected signal to the single-chip microcomputer. 1. At this time, the single-chip microcomputer starts counting from 1 and counts at the same time; when the second slide, the single-chip microcomputer 1 continues to count and time, and calculates the interval between two times; The signal is transmitted to the single-chip microcomputer 1. At this time, the single-chip microcomputer 1 continues to count and time. At this time, it is n, and the count value is displayed in real time through the digital tube of the display module 3; When the count meets the number of tablets required for a single medicine bottle, the single-chip microcomputer 1 outputs a signal to the sound and light alarm module 4, so that the buzzer alarms, and the LED warning light flashes, and the tablet assembly line conveyor belt works, and the filled medicine bottle is passed away. And new empty medicine bottles are sent down the tablet assembly line, which circulates in turn. The number of tablets required in a single medicine bottle can be adjusted up and down through the key control module 2 . If the interval time is too long during the counting process, it is judged that the tablet slips and there is a jam or other equipment problems. At this time, the buzzer beeps for a long time to alarm, and the LED warning light continues to flash.

The above is only a further description of the utility model, and is not intended to limit the patent, and all equivalent implementations of the utility model should be included in the scope of claims of the patent.

Claims (4)

1. A liquid drip speed monitor, characterized in that the monitor is a single-chip microcomputer (1) respectively connected to a button control module (2), a display module (3), an audible and visual alarm module (4) and a speed detection module (5) The liquid speed measuring device composed of the button control module (2) is connected with the P1.0-1.1.4 pins of the single-chip microcomputer (1); the display module (3) is connected with the P0.0-0.3 and P2.0-2.7 pins are connected; the sound and light alarm module (4) is connected with the P0.4-0.5 pins of the single-chip microcomputer (1); the speed detection module (5) is connected with the P0.6 of the single-chip microcomputer (1) The pins are connected, and the speed detection module (5) inputs the measured drip speed into the single-chip microcomputer (1), and when the threshold value is exceeded, the single-chip microcomputer (1) outputs a signal to the sound and light alarm module (4) for a buzzer alarm. 2. The liquid infusion speed monitor according to claim 1, characterized in that the single-chip microcomputer (1) compares the input infusion speed with the set infusion speed value, when the infusion speed is greater than the upper limit or less than the lower limit and When it is zero, the single-chip microcomputer (1) outputs a signal to the sound and light alarm module (4) for buzzer alarm. 3. The liquid drip speed monitor according to claim 1, characterized in that the speed detection module (5) is composed of an infrared transmitting and receiving tube and an lm393 comparator, and can display liquid drip counting and speed measurement through a digital tube. 4. The liquid infusion speed monitor according to claim 1, characterized in that the key control module (2) is provided with five function keys of upper limit mode, lower limit mode, increase, decrease and stop/run, by adjusting the up, The increase and decrease of the lower limit set the infusion speed, and select the stop/run key to control the operation and stop of the entire system.