CN115518237A

Movatterモバイル変換

Info

Publication number: CN115518237A
Application number: CN202211249756.0A
Authority: CN
Inventors: 祝震杰; 陈为; 薛攀
Original assignee: Hangzhou Jingdao Technology Co ltd
Current assignee: Hangzhou Jingdao Technology Co ltd
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-12-27

Abstract

Translated fromChinese

本发明提供了一种滴液速率检测方法及装置，包括S1、获取每一颗输液液滴的液滴扰动脉冲的有效信号；S2、计算两个所述有效信号之间的间隔时间，获得每分钟的脉冲频次；S3、获取液滴穿过墨菲式滴管的背景辐射值和穿过滴落通过墨菲式滴管的辐射值，以获得表示由于所述液滴穿过所述辐射路径而导致的辐射损失的数据；S4、计算所述液滴的体积，作为所述液滴经过期间检测到的辐射相对于所述背景辐射值的相对损失的函数；S5、根据所述脉冲频次计算滴液速率。本申请通过实时侦测获取输液动态滴速、和动态滴速的变化信息。以方便护士根据医嘱、药物种类、输液对象与病情特点，及时了解输液异常情况，为输液患者实时调整输液速度，方便巡查观察。

The present invention provides a drop rate detection method and device, including S1, obtaining the effective signal of the drop disturbance pulse of each infusion drop; S2, calculating the interval time between the two effective signals, and obtaining each The pulse frequency of minutes; S3, obtain the background radiation value of the droplet passing through the Murphy dropper and the radiation value passing through the Murphy dropper, so as to obtain the expression due to the drop passing through the radiation path The data of the radiation loss caused by it; S4, calculating the volume of the droplet, as a function of the relative loss of the radiation detected during the passage of the droplet relative to the background radiation value; S5, calculating according to the pulse frequency Drop rate. The application obtains the dynamic drop rate of the infusion and the change information of the dynamic drop rate through real-time detection. It is convenient for nurses to keep abreast of abnormalities in infusion according to doctor's orders, types of drugs, infusion objects, and disease characteristics, and adjust the infusion speed for infusion patients in real time, so as to facilitate inspection and observation.

Description

Translated fromChinese

一种滴液速率检测方法及装置Method and device for detecting drop rate

技术领域technical field

本申请涉及医用输液技术领域，特别涉及一种滴液速率检测方法及装置。The present application relates to the field of medical infusion technology, in particular to a method and device for detecting a drip rate.

背景技术Background technique

医用输液监视仪用于患者输液过程中，进行输液状态的监视，对输液过快、过慢和输液停止等异常状态进行提示，使得异常状态能够及时得到处理。The medical infusion monitoring instrument is used in the process of patient infusion to monitor the infusion status, prompt the abnormal status such as the infusion is too fast, too slow and the infusion stops, so that the abnormal status can be dealt with in time.

(1)从临床用途来讲，医用输液监视仪在输液监护方面，起到辅助和补充的作用，根据用户设定的滴速指令进行实时不间断地监视和提醒。(1) From the perspective of clinical use, the medical infusion monitor plays an auxiliary and supplementary role in infusion monitoring, and performs real-time and uninterrupted monitoring and reminders according to the drip speed command set by the user.

(2)从输液护理的整个流程来看，所有的滴速设定、滴速调整等流程都是护士全程参与，通过输液器的手动旋轮实现，医用输液监视仪只是作为监视者，不参与输液护理的治疗控制环节。(2) From the point of view of the whole process of infusion nursing, all the drip rate setting, drip rate adjustment and other processes are all participated by nurses through the manual wheel of the infusion set. The medical infusion monitor is only a monitor and does not participate. Treatment control link of infusion care.

(3)从输液安全角度出发，医用输液监视仪不但不会降低输液安全，在一定程度上还能够弥补人为因素造成的风险。由于疲劳及其他原因造成的人为失误，导致输液过快或输液结束未及时处理。(3) From the perspective of infusion safety, the medical infusion monitor will not reduce the safety of infusion, but can also make up for the risks caused by human factors to a certain extent. Due to human error caused by fatigue and other reasons, the infusion is too fast or the end of the infusion is not processed in time.

发明内容Contents of the invention

基于上述现有技术中存在的缺陷，本申请提出一种滴液速率检测方法及装置，旨在通过实时侦测获取输液动态滴速、和动态滴速的变化信息。以方便护士根据医嘱、药物种类、输液对象与病情特点，及时了解输液异常情况，为输液患者实时调整输液速度，方便巡查观察。Based on the above-mentioned defects in the prior art, the present application proposes a method and device for detecting the drip rate, aiming at obtaining the dynamic drip rate of infusion and the change information of the dynamic drip rate through real-time detection. It is convenient for nurses to keep abreast of abnormalities in infusion according to doctor's orders, types of drugs, infusion objects, and disease characteristics, and adjust the infusion speed for infusion patients in real time, which is convenient for inspection and observation.

根据本发明的第一个方面，提供了一种滴液速率检测方法，所述方法包括以下步骤：According to a first aspect of the present invention, a method for detecting a drip rate is provided, the method comprising the following steps:

S1、获取每一颗输液液滴的液滴扰动脉冲的有效信号；S1. Obtain the effective signal of the droplet disturbance pulse of each infusion droplet;

S2、计算两个所述有效信号之间的间隔时间，获得每分钟的脉冲频次；S2. Calculate the interval time between the two effective signals to obtain the pulse frequency per minute;

S3、获取液滴穿过墨菲式滴管的背景辐射值和穿过滴落通过墨菲式滴管的辐射值，以获得表示由于所述液滴穿过所述辐射路径而导致的辐射损失的数据；S3. Obtain the background radiation value of the drop passing through the Murphy dropper and the radiation value passing through the Murphy dropper, so as to obtain the radiation loss due to the drop passing through the radiation path The data;

S4、计算所述液滴的体积，作为所述液滴经过期间检测到的辐射相对于所述背景辐射值的相对损失的函数；S4. Calculating the volume of the droplet as a function of the relative loss of radiation detected during the passage of the droplet relative to the background radiation value;

S5、根据所述脉冲频次计算滴液速率。S5. Calculate the drip rate according to the pulse frequency.

作为优选，所述根据所述脉冲频次计算滴液速率，包括：As preferably, the calculation of the drip rate according to the pulse frequency includes:

根据公式(1)计算第1滴液滴到第5滴液滴速率According to the formula (1), calculate the velocity of the first drop to the fifth drop

V＝60/(t(n+1)-t(n)) (1)V=60/(t(n+1)-t(n)) (1)

其中，V为动态滴速，t(n+1)表示从开始到检测到第n+1滴液滴时的时间，t(n)表示从开始到检测到第n滴液滴的时间，t(n+1)-t(n)表示后一滴与前一滴之间的时间差，n从1开始；Among them, V is the dynamic drop speed, t(n+1) represents the time from the beginning to the detection of the n+1th drop, t(n) represents the time from the beginning to the detection of the nth drop, t (n+1)-t(n) represents the time difference between the next drop and the previous drop, n starts from 1;

根据公式(2)计算第5滴液滴到滴液结束时的滴液速率Calculate the drop rate from the fifth drop to the end of the drop according to formula (2)

V＝60/((T(n+5)-T(n))/5) (2)V=60/((T(n+5)-T(n))/5) (2)

其中，V为动态滴速，T(n)表示从开始到第n滴液滴时的时间，T(n+5)表示从开始到第n+5滴液滴的时间，T(n+6)-T(n)表示连续5滴的平均时间差，n从1开始。Among them, V is the dynamic drop speed, T(n) represents the time from the beginning to the nth drop, T(n+5) represents the time from the beginning to the n+5th drop, T(n+6 )-T(n) represents the average time difference of 5 consecutive drops, n starts from 1.

作为优选，所述辐射被配置为以脉冲模式工作。Advantageously, said radiation is configured to operate in a pulsed mode.

作为优选，所述辐射被配置为以连续模式工作。Advantageously, said radiation is configured to operate in continuous mode.

作为优选，所述辐射为光辐射。Preferably, said radiation is optical radiation.

作为优选，所述辐射为红外辐射。Preferably, said radiation is infrared radiation.

根据本发明的第二个方面，本发明还提供了一种滴液速率检测装置，用以执行以下步骤According to the second aspect of the present invention, the present invention also provides a drip rate detection device to perform the following steps

根据本发明的第三个方面，本发明还提供了一种滴液速率检测设备，包括挤压机构和滴液检测器，所述挤压结构可以放置在输液系统的墨菲式滴管上，其特征在于，所述挤压结构包括软管夹管阀和控制器，所述软管夹管阀在断电时关闭软管；所述控制器具有可调脉冲发生器和用于产生缓慢上升的电压的电路；所述软管夹管阀由来自所述脉冲发生器的脉冲以及从所述滴液检测器到泵的每个脉冲启动。According to the third aspect of the present invention, the present invention also provides a drop rate detection device, including a squeeze mechanism and a drop detector, the squeeze structure can be placed on the Murphy dropper of the infusion system, It is characterized in that the extrusion structure includes a hose pinch valve and a controller, the hose pinch valve closes the hose when the power is off; the controller has an adjustable pulse generator and is used to generate a slow rise circuit of voltage; the hose pinch valve is actuated by a pulse from the pulse generator and with each pulse from the drip detector to the pump.

作为优选，所述电路的输出处用于产生慢速信号；电压上升时，连接了一个阈值电路，当电压缓慢上升时，所述电路会发出警报信号，达到阈值。Preferably, the output of the circuit is used to generate a slow signal; when the voltage rises, a threshold circuit is connected, and when the voltage rises slowly, the circuit will send out an alarm signal and reach the threshold.

本申请通过实时侦测获取输液动态滴速、和动态滴速的变化信息。以方便护士根据医嘱、药物种类、输液对象与病情特点，及时了解输液异常情况，为输液患者实时调整输液速度，方便巡查观察。The application obtains the dynamic drop rate of the infusion and the change information of the dynamic drop rate through real-time detection. It is convenient for nurses to keep abreast of abnormalities in infusion according to doctor's orders, types of drugs, infusion objects, and disease characteristics, and adjust the infusion speed for infusion patients in real time, which is convenient for inspection and observation.

附图说明Description of drawings

在此参考附图以实例的方式对本发明进行说明。现将详细参考附图，需要强调的时，所示的细节仅仅是示例，只用于说明性地讨论本发明的优选实施例，相信所提供的细节是对本发明的原理和概念方面的最有用和容易理解的描述。关于这一点，不试图比基本理解本发明所必须的详细程度更详细的现实本发明的结构性细节，说明书和附图一起使本领域中技术人员更清楚如何在实践中以多种形式实现本发明。The invention is herein described by way of example with reference to the accompanying drawings. With reference now to the drawings in detail, it is emphasized that the particulars shown are by way of example only and are used for illustrative purposes only to discuss the preferred embodiment of the invention, which are believed to be most useful to the principles and conceptual aspects of the invention. and easy-to-understand descriptions. In this regard, no attempt is made to present structural details of the invention in more detail than is necessary for a fundamental understanding of the invention, and together the description and drawings will make apparent to those skilled in the art how to implement the invention in practice in various forms. invention.

图1是用于实现本实施例中的流程图。Fig. 1 is a flow chart for realizing the present embodiment.

具体实施方式detailed description

在一种具体的实施例中，如图1所示，一种滴液速率检测方法，包括以下步骤：In a specific embodiment, as shown in Figure 1, a method for detecting a drop rate comprises the following steps:

在步骤S1中，首选的脉冲速度是每秒几千脉冲的速度，首选为大约1000000个脉冲。在防止干扰背景辐射测量方面，脉冲模式是有用的，例如当像太阳光这样的外部光源照射墨菲式滴管时。In step S1, the preferred pulse rate is a rate of several thousand pulses per second, preferably about 1,000,000 pulses. Pulse mode is useful in preventing interference with background radiation measurements, for example when an external light source such as sunlight illuminates the Murphy dropper.

在步骤S2中，通过计算两个有效脉冲间的间隔时间(即两颗液滴间的时间差)，可以获得每分钟的脉冲频次；通过计算5个脉冲间的平均间隔时间，可以获得更稳定的每分钟脉冲频次。该脉冲频次即为每分钟的液滴下落频率，如60次/分。通过侦测液滴动态下落频率，可获得实时液滴下落速率，即“动态滴速”，如60滴/分。该“动态滴速”读数将即时显示在液晶屏上，并随着滴速的变化，读数将作动态更新与刷新。In step S2, by calculating the interval time between two effective pulses (i.e. the time difference between two droplets), the pulse frequency per minute can be obtained; by calculating the average interval time between 5 pulses, a more stable Pulse frequency per minute. The pulse frequency is the droplet falling frequency per minute, such as 60 times per minute. By detecting the droplet dynamic drop frequency, the real-time droplet drop rate can be obtained, that is, the "dynamic drop rate", such as 60 drops/min. The "dynamic dripping speed" reading will be displayed on the LCD screen immediately, and as the dripping speed changes, the reading will be dynamically updated and refreshed.

在步骤S3和S4中，为了能够计算每个液滴的体积，首先要通过收集经验数据来形成一个查询表，通过在多个输液器上来得到经验数据，每个输液器有其自身的液滴类型。每个液滴在辐射穿过时具有其自己的波谷。然后在分析天平上对每个液滴进行称重，得出精确的重量。考虑到每种类型流体的比重，可很容易地计算出每个液滴的体积。以水为例，1千克水的体积为1升。不同比重的流体具有与水稍有不同的相应体积。多次重复这一步骤，比较理想的是重复上千次，这样就可以将重量、从而将体积与波谷或与波谷相关的整数值关联起来。In steps S3 and S4, in order to be able to calculate the volume of each droplet, a look-up table is first formed by collecting empirical data on multiple infusion sets, each with its own droplet Types of. Each droplet has its own trough as the radiation passes through. Each droplet is then weighed on an analytical balance to arrive at an exact weight. Taking into account the specific gravity of each type of fluid, the volume of each droplet can be easily calculated. Taking water as an example, 1 kilogram of water has a volume of 1 liter. Fluids of different specific gravities have corresponding volumes that are slightly different than water. This step is repeated many times, ideally thousands of times, so that weight, and thus volume, can be associated with the troughs or with integer values associated with the troughs.

以连续模式发射的红外线比以脉冲模式发射的红外线更加精确，这是因为脉冲之间会产生信息丢失，通过使壳体不透射来自外部的光线，使其更像一个黑箱，可以克服太阳光或其它光线干扰红外线的缺点。一个明显的缺点是对为连续的辐射流供电要求很高。在许多情况下首选电源为蓄电池，使得可以较容易地从一个病人移到另一个病人，但连续模式的辐射源会很快地将电池耗尽。另选地，在本发明的另一个实施例中，设备由交流电供电，较为理想的是，在连续模式为首选模式的情况下，应该配备电池作为备用电源。对于位置永久固定的设备或当需要更高的精度时，这将特别有利。Infrared emitted in continuous mode is more accurate than in pulsed mode due to loss of information between pulses, by making the case more like a black box that does not transmit light from the outside, it overcomes sunlight or Disadvantages of other rays interfering with infrared rays. An obvious disadvantage is the high requirement to power a continuous radiant flow. Batteries are the preferred power source in many cases, allowing for easier movement from one patient to another, but a continuous mode radiation source will quickly drain the battery. Alternatively, in another embodiment of the present invention, the device is powered by alternating current, and ideally, a battery should be provided as a backup power source if the continuous mode is the preferred mode. This is especially advantageous for devices whose position is permanently fixed or when greater precision is required.

计算通过带有墨菲式滴管的静脉输液器输送的体积，而墨菲式滴管被构造为使流体基本上沿着墨菲式滴管的轴线流动。包括使辐射从墨菲式滴管的外部沿着垂直于墨菲式滴管轴线的路径穿过墨菲式滴管到达位于墨菲式滴管外部相对位置上的传感器，和检测并量化穿过墨菲式滴管的背景辐射。如果背景辐射值过低或过高，那么就调节穿过墨菲式滴管的辐射量使其增加或降低，并重复。重复这一阶段，直到达到预定的辐射水平。这将取决于多种因素，比如输液器的类型和墨菲式滴管上结霜。只有达到预定的辐射水平，才有可能计算液滴的体积。首选为红外线形式的辐射穿过滴落经过墨菲式滴管的液滴。传感器检测并量化辐射，以获得表示由于液滴穿过辐射路径而导致的辐射损失的数据。然后计算液滴的体积，该体积是液滴穿过期间检测到的辐射相对于背景辐射值的相对损失的函数。算出的液滴体积用于控制所输的流体，实现更精确的控制。Calculate the volume delivered through an IV set with a Murphy dropper configured so that the fluid flows substantially along the axis of the Murphy dropper. comprising passing radiation from the exterior of the Murphy pipette through the Murphy pipette along a path perpendicular to the axis of the Murphy pipette to a sensor located opposite the exterior of the Murphy pipette, and detecting and quantifying the passing Background radiation from the Murphy dropper. If the background radiation value is too low or too high, adjust the amount of radiation passing through the Murphy dropper to increase or decrease, and repeat. This stage is repeated until a predetermined radiation level is reached. This will depend on factors such as the type of infusion set and the frosting on the Murphy dropper. Only when a predetermined radiation level is reached is it possible to calculate the volume of the droplet. Radiation, preferably in the form of infrared rays, passes through the droplets falling through the Murphy dropper. Sensors detect and quantify the radiation to obtain data representing the radiation loss due to the droplet traversing the radiation path. The volume of the droplet is then calculated as a function of the relative loss of radiation detected during the droplet's passage relative to the background radiation value. The calculated droplet volume is used to control the delivered fluid for more precise control.

在步骤S5中，当设备开机时，设备完成初始化后定时器开始设备运行时间计时。当第一滴液滴滴落被设备检测到时，设备通过定时器自动为其赋予时间，并对之后检测到的每一滴液滴赋予时间。基于定时器对每一滴滴落时的时间记录为算法的每一滴液滴的时间数据来源。In step S5, when the device is turned on, the timer starts counting the running time of the device after the device is initialized. When the first droplet is detected by the device, the device automatically assigns time to it through the timer, and assigns time to each droplet detected thereafter. Based on the timer, the time when each drop drops is recorded as the time data source of each drop of the algorithm.

算法分为两部分，一部分为设备检测到液滴滴数为1至5滴时如公式一所示；另一部分为从设备检测到第6滴液滴开始到输液结束，如公式二所示。公式一取连续两滴之间的时间差进行计算当时每分钟的输液速度；公式二采用取连续5滴的时间，再除以5算出平均连续两滴之间的时间以换算出当时的每分钟输液速度。The algorithm is divided into two parts. One part is when the device detects 1 to 5 drops, as shown in formula 1; the other part is from the time when the device detects the sixth drop to the end of the infusion, as shown in formula 2. Formula 1 takes the time difference between two consecutive drops to calculate the infusion rate per minute at that time; Formula 2 takes the time of 5 consecutive drops and divides it by 5 to calculate the average time between two consecutive drops to convert the infusion per minute at that time speed.

算法公式：Algorithm formula:

1)从设备检测到第1滴液滴到第5滴液滴的算法1) Algorithm from the device detecting the first drop to the fifth drop

公式一：V＝60/(t(n+1)-t(n))Formula 1: V=60/(t(n+1)-t(n))

V：动态滴速(单位：滴/分钟)；V: dynamic drop rate (unit: drop/minute);

t(n+1)：设备开机开始到设备检测到第n+1滴液滴时的时间；t(n+1): the time from when the device is turned on to when the device detects the n+1th drop;

t(n)：设备开机开始到设备检测到第n滴液滴的时间；t(n): the time from when the device is turned on to when the device detects the nth drop;

t(n+1)-t(n)：表示后一滴与前一滴之间的时间差，如：从开机开始到输液滴到第2滴与第1滴的时间差；前5滴以此类推进行计算。t(n+1)-t(n): Indicates the time difference between the last drop and the previous drop, such as: the time difference from the start of the machine to the infusion drop to the second drop and the first drop; the first 5 drops are calculated by analogy .

n：n从1开始。n: n starts from 1.

2)从设备检测到第6滴滴速到输液结束时的算法2) Algorithm from the device detecting the sixth drop speed to the end of the infusion

公式二：V＝60/((t(n+5)-t(n))/5)Formula 2: V=60/((t(n+5)-t(n))/5)

t(n)：获取从开机开始到第n滴液滴时的时间；t(n): Obtain the time from the start of power-on to the nth drop;

t(n+5)：获取从开机开始到第n+5滴液滴的时间；t(n+5): Obtain the time from power-on to the n+5th drop;

t(n+6)-t(n)：表示连续5滴的平均时间差，如：从开机开始到输液滴到第6滴与第2滴的平均时间差、第7滴与第3滴的平均时间差、第8滴与第3滴的平均时间差，依此类推。以使动态滴速表达更为精确，滴速曲线描述更为平缓。t(n+6)-t(n): Indicates the average time difference of 5 consecutive drops, such as: the average time difference from the start of the infusion to the 6th drop and the 2nd drop, the average time difference between the 7th drop and the 3rd drop , the average time difference between the 8th drop and the 3rd drop, and so on. In order to make the expression of the dynamic drop rate more accurate, the description of the drop rate curve is more gentle.

n：n从1开始。n: n starts from 1.

在另一种具体的实施例中，一种滴液速率检测设备包括挤压机构和滴液检测器，所述挤压结构可以放置在输液系统的墨菲式滴管上，所述挤压结构包括软管夹管阀和控制器，所述软管夹管阀在断电时关闭软管；所述控制器具有可调脉冲发生器和用于产生缓慢上升的电压的电路；所述软管夹管阀由来自所述脉冲发生器的脉冲以及从所述滴液检测器到泵的每个脉冲启动。所述电路的输出处用于产生慢速信号；电压上升时，连接了一个阈值电路，当电压缓慢上升时，所述电路会发出警报信号，达到阈值。In another specific embodiment, a drop rate detection device includes a squeeze mechanism and a drop detector, the squeeze structure can be placed on the Murphy dropper of the infusion system, the squeeze structure Consists of a hose pinch valve and a controller that shuts off the hose when de-energized; the controller has an adjustable pulse generator and circuitry for generating a slowly rising voltage; the hose The pinch valve is activated by a pulse from the pulse generator and with each pulse from the drip detector to the pump. The output of the circuit is used to generate a slow signal; when the voltage rises, a threshold circuit is connected, and when the voltage rises slowly, the circuit will send out an alarm signal and reach the threshold.

控制装置，所述脉冲发生器的脉冲重复率是所希望的下降速度相等，并且用于产生一个缓慢上升的电压的电路与零个杯垫一个锯齿波发生器。阈值电路连接到用于生成缓慢增加电压，当缓慢上升的电压达到阈值供给警报信号的电路的输出。作为加压机构，一个马达驱动的软管夹提供，该装置在该被在关闭或打开方向上操作被设定在从所述驱动电机的设定值的液滴检测器的信号的偏差的情况下这样的方式操作。通常，使用步进电机。这些已知的控制装置的主要缺点是，继续障碍如电源故障，在控制单元输注在挤压机构的最后一组位置的故障不管制。然后，在低下降速度下，存在相当大的不准确性，只有大药物两滴可以快速连续快速下降，对于那些只有小药物的强药物下落速度是不确定的。The control means, the pulse repetition rate of the pulse generator is equal to the desired rate of decline, and a sawtooth generator with zero coasters for generating a slowly rising voltage circuit. The threshold circuit is connected to the output of the circuit for generating a slowly increasing voltage to supply an alarm signal when the slowly increasing voltage reaches the threshold. As a pressurization mechanism, a motor-driven hose clamp is provided, the device being operated in the closing or opening direction is set in case of a deviation of the signal of the drop detector from the setpoint of the driving motor Operate in this way. Typically, stepper motors are used. The main disadvantage of these known control devices is that continuing obstacles such as power failures, failures in the control unit infusion at the last set of positions of the extrusion mechanism are not regulated. Then, at low drop rates, there is considerable inaccuracy, only two drops of large drugs can drop rapidly in rapid succession, and the drop rate is uncertain for those strong drugs with only small drugs.

本实施例目的因此是设计提到，使得在技术故障中断，特别是在非常低的滴落速度，双降的发生可靠地防止所述类型的控制装置。原则上，根据本实施的控制设备进行操作，以使常闭夹管阀逐渐打开，直到下降下降，然后立即通过来自脉冲发生器的下一个脉冲关闭以启动时，一个新的液滴的形成。方便地，如果输注液体被消耗和/或输液管扭结或挤压，例如患者在软管上的事实，则不会再下降，因此控制单元完全打开阀门。在某种情况下，公知的控制装置中，必须采取附加的安全措施根据本实施例，以触发在所述控制单元中的报警，但保留实现以简单的方式。The purpose of this embodiment is therefore to design a control device of the type mentioned so that in the event of a technical fault interruption, especially at very low dripping velocities, the occurrence of a double drop is reliably prevented. In principle, the control device according to this embodiment is operated so that the normally closed pinch valve is gradually opened until the drop falls, and then immediately closed by the next pulse from the pulse generator to initiate the formation of a new droplet. Conveniently, if the infusion fluid is consumed and/or the infusion line is kinked or pinched, eg the fact that the patient is on the hose, there is no further drop, so the control unit fully opens the valve. In certain cases, known control devices, additional safety measures have to be taken according to this embodiment in order to trigger an alarm in the control unit, but the implementation remains simple.

设备所能达到的有益效果如下：The beneficial effects that the equipment can achieve are as follows:

(1)应能获得每一颗输液液滴的“液滴扰动脉冲”的有效信号；(1) It should be possible to obtain an effective signal of the "droplet disturbance pulse" of each infusion droplet;

(2)应能剔除因墨菲氏滴管内水雾挂壁、或因抖动晃动而制造的误信号。(2) It should be able to eliminate false signals caused by water mist hanging on the wall in the Murphy's dropper or by shaking.

(3)应能剔除阳光等强光干扰。(3) It should be able to eliminate strong light interference such as sunlight.

(4)通过计算两个有效脉冲间的间隔时间(即两颗液滴间的时间差)，可以获得每分钟的脉冲频次；通过计算5个脉冲间的平均间隔时间，可以获得更稳定的每分钟脉冲频次。该脉冲频次即为每分钟的液滴下落频率，如60次/分。通过侦测液滴动态下落频率，可获得实时液滴下落速率，即“动态滴速”，如60滴/分。该“动态滴速”读数将即时显示在液晶屏上，并随着滴速的变化，读数将作动态更新与刷新。(4) By calculating the interval time between two effective pulses (that is, the time difference between two droplets), the pulse frequency per minute can be obtained; by calculating the average interval time between 5 pulses, a more stable per minute can be obtained Pulse frequency. The pulse frequency is the droplet falling frequency per minute, such as 60 times per minute. By detecting the droplet dynamic drop frequency, the real-time droplet drop rate can be obtained, that is, the "dynamic drop rate", such as 60 drops/min. The "dynamic dripping speed" reading will be displayed on the LCD screen immediately, and as the dripping speed changes, the reading will be dynamically updated and refreshed.

(5)当“动态滴速”超越所设定的上下限值时，设备应能发出提示提醒信号，并以语音等方式加以呈现。(5) When the "dynamic dripping speed" exceeds the set upper and lower limits, the device should be able to send out a reminder signal and present it by voice or other means.

(6)当设备侦测到连续一定时间内无新的液滴落下时，设备应能发出提示提醒信号，并以语音等方式加以呈现。(6) When the device detects that there is no new drop falling for a certain period of time, the device should be able to send out a reminder signal and present it in the form of voice.

一种可读存储介质，用于保存计算机程序，其中，所述计算机程序被处理器执行时实现前述实施例公开的基于大数据的企业发展预测及推荐方法。关于该方法的具体步骤可以参考前述实施例中公开的相应内容，在此不再进行赘述。A readable storage medium is used to store a computer program, wherein when the computer program is executed by a processor, the method for predicting and recommending enterprise development based on big data disclosed in the foregoing embodiments is implemented. Regarding the specific steps of the method, reference may be made to the corresponding content disclosed in the foregoing embodiments, and details are not repeated here.

本申请涉及的“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法或设备固有的其它步骤或单元。"First", "second", "third", "fourth" and the like referred to in the present application, if any, are used to distinguish similar objects and not necessarily to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, e.g. a process, method or apparatus comprising a series of steps or elements is not necessarily limited to those steps or elements explicitly listed , but may include other steps or elements not explicitly listed or inherent to the process, method or apparatus.

需要说明的是，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。It should be noted that the descriptions in this application involving "first", "second" and so on are for descriptive purposes only, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features . Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同或相似部分互相参见即可。Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other.

结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的可读存储介质中。The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known readable storage medium.

本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的一般技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。In this paper, specific examples are used to illustrate the principles and implementation methods of the application. The descriptions of the above embodiments are only used to help understand the method and core idea of the application; meanwhile, for those of ordinary skill in the art, according to the application There will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be construed as limiting the application.