JPH02182267A - Drip monitor apparatus - Google Patents

Abstract

PURPOSE:To obtain a drip monitor apparatus rich in convenience by containing a means detecting the wt. of a transfusion container, a means for informing a drip start state, a drip continuing state and a drip termination state and a means displaying the elapse time from the drip start state. CONSTITUTION:A drip monitor apparatus 1 is equipped with a wt. detection means 2 for measuring the wt. of a transfusion container along with the transfusion agent received in said container to output the signal corresponding to the wt. and arranged so that a preparation lamp 12 and a drip lamp 13 enter a visual field. When a start button 4 is operated after a power supply switch 11 is closed to input the amount of the tansfusion in a transfusion bag 37, the preparation lamp 12 lights and clocking operation due to a clocking circuit is started. Next, it is judged whether the wt. signal from the wt. detection means 2 is changed and, when it is judged that said signal is changed, the integration value of an elapse time and a drip speed V are operated by the clocking circuit 30 to be displayed on an elapse time display part 16 and the drip monitor apparatus 1 calculates the residual amount of a transfusion agent. Therefore, it is unnecessary to always take care of the residual amount of the transfusion bag and forcible tension over a long time is released.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for monitoring infusion operations performed in hospitals.

BACKGROUND OF THE INVENTION 1. BACKGROUND OF THE INVENTION 1. For patients suffering from various diseases or accidents, infusion therapy such as various nutritional supplements and blood is performed in response to the symptoms.

This type of infusion therapy involves injecting infusions into the veins or subcutaneously of a patient lying in bed from an infusion bag filled with infusions through an introducer needle, tube, drip tube, clamp, catheter, etc. be. Although such infusion work depends on the physical condition of the patient, it generally takes several tens of minutes to several hours. Further, in this type of infusion work, as with injections, if air is accidentally injected into the patient's body, the patient's life is not at risk.

Therefore, nurses need to keep paying attention to changes in the contents of the infusion bag over a long period of time, and being forced to pay attention for such a long period of time requires a great deal of capacity for nurses. The patient is forced to do so, and the monitoring is extremely painful. In addition, even when completing the infusion work and replacing the infusion bag at the site where the infusion work is to be continued, it is necessary to monitor it so that the appropriate timing can be determined. ;The entire α task placed undue stress on nurses and patients.

Problems to be Solved by the Invention It is an object of the present invention to solve the above-mentioned technical problems, to monitor the progress of intravenous drip work on behalf of nurses and patients, and to monitor the starting state, continuation state, and progress state of the infusion work on behalf of nurses and patients. To provide a highly convenient drip monitoring device that notifies patients and patients, and also notifies the hospital side if necessary.

Means for Solving the Problems The present invention includes a weight detection means for detecting the weight of an infusion container and deriving a weight signal, and a means for receiving the weight signal and detecting at least an infusion start state, an infusion continuation state, and an infusion end state. This is an infusion monitoring device characterized by including a notification means for each notification, and a display means for displaying the elapsed time from the start state of the infusion.

A preferred embodiment of the present invention is characterized in that the infusion monitoring device transmits data corresponding to the display contents of the notification means and the display means to the central control device, and the progress state of the infusion is displayed on the central control device. shall be.

Another preferred embodiment of the present invention is characterized in that the weight detection means includes a hanging means, and the weight is detected by suspending the infusion container from the hanging means.

Function According to the present invention, the weight of the infusion container used for infusion work is detected by the weight detection means, and a weight signal is derived. Based on the level of this weight signal, the drip monitoring device notifies the drip start state, the drip continuation state, and the drip end state by the notification means, respectively. This eliminates the need for nurses and patients to constantly pay attention to IV equipment such as drip tubes, and relieves them from forced tension over long periods of time. Furthermore, since the drip monitoring device displays the elapsed time from the start of the drip on the display means, it is convenient for recording the patient's treatment history in a medical record.

Embodiment FIG. 1 is a front view of a drip monitoring device 1 according to an embodiment of the present invention, and FIG. 2 is a system diagram of a configuration including a plurality of drip monitoring devices 1. This embodiment will be described with reference to FIGS. 1 and 2. The drip monitoring device 1 of this embodiment is equipped with a weight detection means 2 that measures the weight of an infusion bag or an infusion bottle, which is an infusion container, together with the filled infusion material, and outputs a signal corresponding to the weight. The weight detection means 2 includes a hook which is a hanging means for hanging the infusion bag.

This weight detection means 2 can be implemented in a wide variety of configurations. For example, a lever balance method, a method that mechanically and photoelectrically detects the amount of displacement or deformation of a spring, a method that converts the amount of deformation of an elastic body into a change in electrical resistance, a new method using an electromagnetic inner core that uses Fleming's law of electromagnetic induction, Furthermore, a wide range of configuration examples can be implemented, such as a method that utilizes the precession of a gyroscope.

The drip monitoring device 1 is not limited to the type of power source, but it is convenient to have a built-in battery for portability. and is provided.

There is also a preparation lamp 12, which is made up of, for example, a light-emitting diode (LED), which is turned on when the power switch 11 is turned on and turned off during the infusion period, which will be described later. It blinks at a frequency that changes depending on the rate of decrease of the infusion agent in the bag,
Thereby, an infusion lamp 13 made of, for example, an LED is arranged to notify the nurse and patient of the start state, continuation state, and end state of the infusion.

The intravenous drip monitoring device 1 is also equipped with a numeric keypad 14, which allows you to manually enter the content volume of the infusion bag to be infused, for example
The liquid amount display unit 15 is configured with a 7-segment liquid crystal display element or the like.

In addition, the elapsed time since the start of the infusion is recorded in hours (H) minutes (
An elapsed time display unit 16 is provided, which is constituted by a liquid crystal display device or the like, and displays the elapsed time in units of M) seconds (S). A notification means is constituted by the preparation lamp 12, the drip lamp 13, the liquid amount display section 15, and the elapsed time display section 16.

Further, a reset button 17 for clearing the display contents of the liquid amount display section 15 and the elapsed time display section 16 is arranged. Further, a start switch 4 is arranged to start the drip monitoring device 1 into a state in which the weight detection means 2 can output a weight signal.

A handle 18 is provided at the upper end of the housing 9 so that the drip monitoring device 1 can be carried, and a weight detection means 2 is provided.
Various data specifying the display states of the preparation lamp 12 and the drip lamp 13, the display states of the liquid amount display section 15J] and the elapsed time display section 16, etc. based on the weight signal from the machine are realized by, for example, a computer. A connection cord 21 with a plug 20 for transmission to the central processing unit 19, which is a central control unit, is connected.

One of the central processing units is, for example, a host computer that centrally manages various terminal devices connected online within a hospital. A display device 23 such as a CRT (cathode ray tube), a printer 24, a keyboard 25, etc. installed in a so-called nurse center 22 are connected to one such central processing unit. When infusing multiple patients in parallel, the data from each infusion monitoring device 1 may be displayed all at once, or various data may be printed out. Further, various control operations may be performed by inputting from the keyboard 25.

FIG. 3 is a block diagram illustrating the electrical configuration of the drip monitoring device 1. Referring to FIG. 3, the weight signal from the weight detection means 2 is amplified in signal level by an amplifier circuit 26 in the drip monitoring device 1, and noise is removed by a filter 27. The output of the filter 27 is input to a noise removal circuit 28, which removes noise from the weight signal to prevent malfunctions due to noise, chattering, etc.).

The output of the noise removal circuit 28 is input to a display drive circuit 29 and a clock circuit 30. The two display drive circuits drive the preparation lamp 12 and drip lamp 13 to turn on as described above. Further, the timer circuit 30 counts the elapsed time since the start of the infusion as will be described later, outputs the time measurement result to the elapsed time display drive circuit 31, and displays the elapsed time on the elapsed time display section 16.

Here, since the intravenous drip monitoring device 1 of this embodiment measures the weight of the infusion container together with the filled infusion agent, the measured weight will be the same even when the infusion container is empty.
It will not be zero. A tare calculation circuit 50 is connected to the time measurement circuit 30. The tare calculating circuit 50 calculates whether the infusion container is empty based on material data specifying whether the infusion container is an infusion bag, a lug, or an infusion bottle, and infusion volume data, which are input as described below. The weight, that is, the amount of tare is calculated, and the calculation result is input to the clock circuit 30. The timing circuit 30 determines that the infusion has ended when the level of the weight signal input from the weight detection means 2 reaches a value corresponding to the tare amount.

In addition to the weight of the infusion container, the weight of a commonly used infusion set may be taken into consideration as the tare amount, and a value such that a small amount of the infusion agent remains in the infusion container is output to the timing circuit 30. You may also do so.

Further, a liquid volume display drive circuit 32 is provided to display and drive the liquid volume display section 15 shown in FIG.

The time measurement result of the time measurement circuit 30 is input to the end determination circuit 33, and for example, when there is no change in the weight signal even after a predetermined period of time has elapsed, or when the state of the weight signal has reached the level of the tare amount. determines that the infusion has ended and outputs the determination result to the two display drive circuits. The drip monitoring device 1 is also provided with an external output circuit 34 for transmitting the outputs of the noise removal circuit 28, the clock circuit 30, the end determination circuit 33, and the liquid amount display drive section 32 to the nurse center 22'. The drip monitoring device 1 also includes a built-in battery 51 that supplies driving power.

FIG. 4 is a perspective view showing an example of the configuration of an infusion device using the infusion monitoring device 1 of this embodiment. When performing an intravenous drip (), the drip monitoring device 1 is mounted on a pedestal 36 attached to a support 35.
and hang the infusion bag 37 from the hook 31. The infusion solution in this infusion bag 37 is guided from the introduction needle 38 to the drip barrel 41 through an intermediate tube 40 with a cock 39 interposed therebetween.

The infusion solution dripped within the drip tube 41 is led to, for example, a three-way stopcock 46 via a tube 43, a rubber tube 44, and an octopus tube 45, which are interposed with a roller-type clamp 42, for example. For example, a catheter 48 is connected to the three-way stopcock 46 via a rubber tube 47, and is placed in a patient's vein or subcutaneously.

The drip monitoring device 1 is suspended from the pedestal 26, and placed so that the preparation lamp 12J and the drip lamp 13 are within the field of view of the nurse who supervises the drip operation. In addition, by arranging it so that it can be seen by the patient, the patient can also grasp the progress of the infusion, which is an advantage.

FIG. 5 is a flowchart showing the procedure of the drip operation.

Also refer to FIG. When administering an intravenous drip to a patient, in step a1, the intravenous drip equipment shown in FIG.
Prepare IV equipment, including At this time, catheter 4
Treatments such as indwelling 8 into a patient's vein or subcutaneously are also performed. In step a2, the power switch 11 of the drip monitoring device 1 is turned on.

In step a3, as described above, the amount of infusion fluid is input into the drip monitoring device 1 using the numeric keypad 14 of the drip monitoring device 1, and is displayed on the fluid amount display section 15. Such a liquid level display section 1
5 may be displayed by subtracting (-) according to the progress of the infusion, as will be described later, or the initial set value may be displayed as is. In addition, whether the infusion container to be used is a relatively lightweight infusion bag made of synthetic resin material or an infusion bottle made of glass or the like is input as material data.

In step a4, the three cocks of the intravenous drip device shown in FIG. 4 are opened to start the drip, and the start button 4 of the drip drip device W manufactured by Kanpo is operated to start it.

As a result, in step a5, the intravenous drip monitoring device 1 performs operations as described below, and when it is determined that the infusion using the infusion bag 37 being used has been completed, in step a6, for example, a nurse takes steps to complete the infusion work. Alternatively, the infusion bag 37 is replaced.

FIG. 6 is a flowchart illustrating the operation of the drip monitoring device 1. Referring to FIG. 6, in step [)1, the power switch 11 of the drip monitoring device 1 is turned on, thereby lighting up the power lamp lla.

Step 1: +2 Inputs the amount of infusion in the infusion bag 37, and also inputs the above-mentioned material data regarding the infusion container. In step 1:+3, the start button 50 is operated. When the star 1 button 50 is operated, the preparation lamp 12 lights up. In step b4, a time counting operation using the clock time i\8b4 is started.

After this, in step b5, it is determined whether the weight signal from the weight detection means 2 has changed. If there is no change, the process moves to step b6, and it is determined whether a predetermined time T1 has elapsed. This time T1 is the time when the drip tube 41
The length of the infusion interval may be selected to be about the longest infusion interval during which the infusion agent remains in the infusion solution at all times. That is, if the period during which there is no change in the weight signal exceeds the time T1, the amount of the infusion agent in the drip tube 41 is reduced, and the drip operation is considered to have ended.

If the determination in step b6 is negative, the process returns to step b5. When it is determined in step b5 that the weight signal has changed, the process moves to step b7, where the timer circuit 30 calculates the integrated value of the elapsed time and the drip rate V (for example, the flow rate of the infusion drug), and the elapsed time display section 16 Display at. Further, in step b8, the drip lamp 13 is turned on for a period of time Tv that changes in a negative correlation with the drip speed (2), and then is turned off. The maximum period length of this lighting time Tv may be selected to be shorter than the shortest drip interval in the drip tube 41. That is, in this embodiment, the blinking operation of the drip lamp 13 is changed in accordance with the dripping speed of the infusion agent in the drip tube 41.

In step b9, the drip monitoring device 1 calculates the remaining amount of the infusion solution based on the weight signal.

That is, in step b7, the dripping rate V is calculated, and the consumption amount of the infusion agent is calculated based on the integrated value. On the other hand, the amount of infusion is input in step L12, and the remaining amount of the infusion is calculated as the difference. Further, the output from the tare calculation unit 50 described with reference to FIG. 3 is used for correcting this remaining amount calculation, and is particularly used for determining when the dripping operation has ended.

Regarding such an integrated flow rate value, the liquid volume display section 15 may display the subtraction from the initially set value (or the calculated integrated flow rate value may be stored and the initially displayed data may be displayed as is). Step b 10
In this case, such a preparation lamp 12 and drip lamp 13
The data regarding the lighting state, the data regarding the obtained flow rate, and the elapsed time data are transmitted to the central processing unit 19 mentioned above.

When it is determined in step [)6 that the time T1 has elapsed, the process moves to step bll, the timekeeping operation is stopped, and the drip lamp 13 is turned off in step b12. Thereafter, in step b13, data corresponding to the state of completion of the infusion is transmitted to one central processing unit.

Thus, in this embodiment, the nurse
The state of preparation for drip operation can be determined by the lighting of the drip lamp 13 and the unlit state of the drip lamp 13, and the continuation state of the drip and the outline of the drip flow rate can also be determined by the blinking of the drip lamp 13 and its frequency.

In addition, the state in which the drip has been completed can be recognized by the drip lamp 13 remaining off, and the drip drip lamp 13 remains off.
transmits the infusion end data to one central processing unit, displays it on the display device 23, etc., and the nurse center 22 can grasp the end state of the infusion.

In this way, according to the present embodiment, there is no need for @M women or patients to constantly pay attention to the remaining amount of the infusion bag 37, and the patient is free from the strain that is forced over a long period of time. It will be liberated.

In addition, by subtracting and displaying the liquid volume on the liquid volume display unit 15, you can grasp the amount of the infusion agent injected as time progresses, and also
If the data originally set in 5 is displayed as is, the patient's treatment history will be clearly understood.

As another embodiment of the present invention, in addition to turning off the drip lamp 13, a buzzer or the like may be provided to notify the patient of the end of the drip by sound.

Advantages of the Invention According to the present invention, nurses and patients do not have to keep their eyes on drip tubes and drip equipment all the time, and are relieved from forced tension over long periods of time. Furthermore, since the infusion monitoring device displays the elapsed time since the start of the infusion using the display means, it is convenient for recording the patient's treatment history in a medical chart or the like.

[Brief explanation of the drawing]

FIG. 1 is a front view of a drip monitoring device 1 according to an embodiment of the present invention;
FIG. 2 is a system diagram of the configuration including the drip monitoring device 1, FIG. 3 is a block diagram of the drip monitoring device 1, and FIG. 4 is a block diagram of the drip monitoring device 1.
5 and 6 are flowcharts illustrating the operation of this embodiment. DESCRIPTION OF SYMBOLS 1... drip monitoring device, 2. flap detection means, 3. hook, 12.. preparation lamp, 13. drip lamp, 15.
Liquid amount display section, 16... Elapsed time display section, 1 Central processing unit, 22... Nurse center, 23... Display device, 5
0... Tare calculation circuit agent Patent attorney Number of strokes Keiichi 1st figure

Claims (3)

[Claims] (1) Weight detection means that detects the weight of the infusion container and derives a weight signal; Notification means that receives the weight signal and notifies at least the infusion start state, the infusion continuation state, and the infusion end state, and the infusion 1. A drip monitoring device comprising: display means for displaying elapsed time from a starting state. (2) The drip monitoring device transmits data corresponding to the display contents of the notification means and the display means to the central control device, and the progress state of the drip is displayed on the central control device. The drip monitoring device according to scope 1. (3) The drip monitoring device according to claim 1, wherein the weight detection means includes a hanging means, and the weight is detected by suspending the infusion container from the hanging means.