KR102359375B1 - Fluid monitoring device, method and system - Google Patents

Abstract

An infusion fluid monitoring device according to one embodiment of the present invention comprises: a light emitting unit for irradiating light into an infusion drip container; a light receiving unit for absorbing the light irradiated from the light emitting unit and measuring absorbance; a coupling unit for coupling the light emitting unit and the light receiving unit on the infusion drip container; and a control unit for controlling the light emitting unit and the light receiving unit, wherein the control unit can, based on the absorbance measured by the light receiving unit, monitor the state of an infusion fluid injected into the infusion drip container.

Description

Fluid monitoring device, method and system

The present specification proposes a fluid monitoring device, method and system.

In hospitals, it is common to inject a fluid into a patient's blood vessel in order to supply necessary drugs and nutrients to the patient. The fluid in the fluid container is directly supplied to the blood vessel through the fluid supply tube inserted into the blood vessel of the patient. As these fluids are directly injected into the patient's blood vessels, there is a high probability of a safety accident. Therefore, medical staff should be resident around the patient and check frequently so that they are not injected too quickly or too slowly and do not miss the timing of fluid replacement/removal. This increases the burden and inconvenience of medical staff, and thus, the need for an automatic fluid monitoring device/method/system to solve this problem has been raised.

In response to such a need, a technique for monitoring the sap in a drip container using an optical sensor has been conventionally proposed.

However, in the case of the prior art, since the size of the drip container is different for each manufacturer, an error occurs when detecting an infusion drop with the optical sensor, and the amount (level) of the infusion in the drip container is In the case of sensing the fluid by facing only one light emitting unit and one light receiving unit, there is a problem in that the sensing itself is impossible in some cases.

In the infusion monitoring device according to an embodiment of the present invention, the light emitting unit for irradiating light into the infusion drip container; a light receiving unit that absorbs the light irradiated from the light emitting unit and measures absorbance; a coupling unit for coupling the light emitting unit and the light receiving unit on the infusion dropper; and a control unit for controlling the light emitting unit and the light receiving unit. Including, but the control unit, based on the absorbance measured by the light receiving unit can monitor the state of the infusion solution injected into the infusion drip container.

According to an embodiment of the present invention, there is an effect that the state of the infusion can be accurately and efficiently measured regardless of the manufacturer of the dripping container and the level of the infusion dripping level.

In addition, according to an embodiment of the present invention, it is possible to additionally measure not only the infusion rate of the infusion, but also the level of the infusion in the drip container, so that various states of the infusion can be comprehensively measured/monitored with one device. there is an effect that

In addition, according to an embodiment of the present invention, by selectively activating/deactivating the light emitting unit/light receiving unit for measuring/sensing the infusion state according to the level of the infusion fluid, there is an effect that measurement accuracy and efficiency can be maximized.

In addition, various effects of the present invention will be described below in detail with reference to each embodiment.

1 is a block diagram of a fluid monitoring device according to an embodiment of the present invention.
Figure 2 is a view illustrating a fluid monitoring device according to the first embodiment of the present invention.
3 is a flow chart illustrating a method for monitoring a sap according to a first embodiment of the present invention.
4 is a diagram illustrating a fluid monitoring device according to a second embodiment of the present invention.
5 is a flowchart illustrating a fluid monitoring method according to a second embodiment of the present invention.
6 is a diagram illustrating an example of use of the fluid monitoring device according to an embodiment of the present invention.
7 is a view illustrating a fluid monitoring device according to a third embodiment of the present invention.
8 is a flowchart of a method for detecting an abnormal state of an IV based on a result of monitoring a state of an IV fluid according to an embodiment of the present invention.

Since the technology to be described below may have various changes and may have various embodiments, specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the technology described below to specific embodiments, and it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the technology described below.

Terms such as first, second, A, and B may be used to describe various components, but the components are not limited by the above terms, and only for the purpose of distinguishing one component from other components. is used only as For example, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component without departing from the scope of the present invention. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items. For example, 'A and/or B' may be interpreted as meaning 'at least one of A or B'. Also, '/' may be interpreted as 'and' or 'or'.

In terms of terms used herein, the singular expression should be understood to include a plural expression unless the context clearly dictates otherwise, and terms such as "comprises" include the specified feature, number, step, operation, and element. , parts or combinations thereof are to be understood, but not to exclude the possibility of the presence or addition of one or more other features or numbers, step operation components, parts or combinations thereof.

Prior to a detailed description of the drawings, it is intended to clarify that the classification of the constituent parts in the present specification is merely a division according to the main function each constituent unit is responsible for. That is, two or more components to be described below may be combined into one component, or one component may be divided into two or more for each more subdivided function. In addition, each of the constituent units to be described below may additionally perform some or all of the functions of other constituent units in addition to the main function it is responsible for. Of course, it can also be performed by being dedicated to it.

In addition, in performing the method or method of operation, each process constituting the method may occur differently from the specified order unless a specific order is clearly described in context. That is, each process may occur in the same order as specified, may be performed substantially simultaneously, or may be performed in the reverse order.

1 is a block diagram of a fluid monitoring device according to an embodiment of the present invention.

Referring to FIG. 1 , the transfusion monitoring apparatus 100 may include a light emitting unit 110 , a light receiving unit 120 , a coupling unit 130 , and/or a control unit 140 .

The light emitting unit 110 may include at least one light emitting device to perform a function of irradiating light into the infusion drip container. For example, the light emitting unit 110 may include at least one of a visible light emitting device, an infrared light emitting device, and an infrared light emitting device as a light emitting device. A plurality of light emitting units 110 may be provided on the infusion monitoring device 100 according to an embodiment, and a location may also be specified, which will be described below in detail with reference to FIGS. 2 to 8 .

The light receiving unit 120 may include at least one optical sensor element to absorb/absorb/receive the light irradiated/output from the light emitting unit 110 to perform a function of measuring the absorbance/receiving degree. Here, the absorbance/receiving degree means the degree to which the light receiving unit 120 absorbs light/light, and information on the measured absorbance/receiving degree may be transmitted to the control unit 140 . A plurality of light receiving units 120 may also be provided on the transfusion monitoring apparatus 100 according to an embodiment, and a location may also be specified, which will be described below in detail with reference to FIGS. 2 to 8 .

The coupling unit 130 may include at least one coupling means to perform a function of coupling the light emitting unit 110 and the light receiving unit 120 on the infusion dropper. For example, the coupling unit 130 may be implemented in a structure that can be mounted/fastened/gripped to the dropper, and the light emitting unit 110 and the light receiving unit 120 may be coupled on the coupling unit 130 . have. In this case, as a result of the mounting/fastening/gripping of the coupling unit 130 to the dropper, the light emitting unit 110 and the light receiving unit 120 coupled to the coupling unit 130 are also coupled to the dropper. Alternatively, as another embodiment, the coupling part 130 is implemented as a housing structure for accommodating a dropper, and the coupling part 130 is implemented in various ways/structures depending on the embodiment, such that the light emitting part 110 and the light receiving part ( 120) can be combined on the dropper, but is not limited to the above-described embodiment.

Although not shown/illustrated in this drawing, the coupling unit 130 may additionally include an external light blocking unit for blocking external light, and through this, an external light is blocked and the sap monitoring error that may occur due to the input of external light can be prevented/minimized.

The control unit 140 is a CPU (Central Processing Unit), MPU (Micro Processor Unit), MCU (Micro Controller Unit), AP (Application Processor), AP (Application Processor), or any form well known in the art of the present invention. It may be configured to include at least one processor. The control unit 140 may control the light emitting unit 110 and the light receiving unit 120 to execute the method according to the embodiments of the present invention, and as a result, in the present specification, the control unit 140 is the sap monitoring device 100 . It can be described as the same as

In particular, the control unit 140 according to an embodiment of the present invention performs an operation of monitoring in real time/periodically the state of the infusion solution injected into the infusion drip container based on the absorbance measured through the light receiving unit 120 . can Here, examples of the state of the infusion may correspond to whether the infusion is injected, the injection rate of the infusion, the amount of infusion, the turbidity of the infusion, and/or the drip level of the infusion. The control unit 140 may control the light emitting unit 110 and the light receiving unit 120 to comprehensively monitor various states of the infusion, and store the monitoring result.

Although not illustrated in this figure, the sap monitoring device 100 may further include a communication unit (not shown). The communication unit may perform communication using at least one wired/wireless communication protocol, and the control unit 140 transmits the monitoring result using the communication unit to an external device/server (eg, a fluid monitoring application server, medical device, medical staff terminal, etc.).

The medical staff can monitor/manage the patient's infusion status in real time even remotely based on the fluid monitoring result received from the fluid monitoring device 100 , thereby significantly improving work burden and discomfort.

Figure 2 is a diagram illustrating a fluid monitoring apparatus according to a first embodiment of the present invention, Figure 3 is a flowchart illustrating a fluid monitoring method according to the first embodiment of the present invention.

Referring to FIG. 2 first, the fluid monitoring apparatus according to the first embodiment of the present invention may include a plurality of light emitting units and light receiving units having a one-to-one relationship with each other. The light emitting unit and the light receiving unit corresponding one-to-one may be provided in the infusion monitoring device so as to be coupled to positions opposite to each other around the infusion drip container. The plurality of light emitting units and light receiving units may be arranged in a vertical direction and at predetermined intervals to be combined with a drip tray, each of the plurality of light emitting units irradiates light to a light receiving unit at an opposing position, and each of the plurality of light receiving units emits light at an opposing position Absorbance can be measured by absorbing/receiving light irradiated from the unit.

The reason for introducing a plurality of light-emitting units and light-receiving units is that the size and structure of the dropper bottles are different for each manufacturer, and the level of the infusion solution placed in the drip bottle is also different for each medical staff and hospital. This is because it is very difficult to accurately monitor the state of the fluid in the red tube. In particular, as the drip level of the sap is set high according to hospital guidelines, when the light emitting unit and the light receiving unit are coupled to the lower side of the drip level (for example, the positions of 220-n and 210-n in this figure), the light path is Because it is blocked/obstructed by drip infusion, the infusion monitoring operation itself becomes impossible.

In order to solve this problem, the transfusion monitoring device of the present invention includes a plurality of light emitting units and light receiving units, and selectively activating only the light emitting units and light receiving units located on the upper side based on the level of the drip in the drip tube, the size of the drip tube, It has the effect that the fluid monitoring operation is always possible regardless of the structure or drip level.

More specifically, referring to FIG. 3 , the transfusion monitoring apparatus may first determine whether a light receiving unit measuring less than a preset level among absorbances measured by a plurality of light receiving units exists ( S301 ).

If there is at least one light receiving unit measuring less than the preset level, the fluid monitoring apparatus may selectively deactivate the corresponding light receiving unit and the light receiving unit corresponding thereto (S302). Furthermore, the infusion monitoring device can measure the absorbance in real time using the remaining light emitting units and light receiving units except for the deactivated light emitting unit and light receiving unit. can be recognized as being Therefore, the fluid monitoring device can derive the interval between the time points when the change in absorbance is detected as the infusion period, and divide the (preset/input) one-time infusion amount by the infusion period to derive the infusion rate can do.

The infusion monitoring apparatus may predict the drip level in the current drip container based on the number and positions of the inactivated light receivers. Also, when a new light receiving unit whose absorbance is measured to be less than a preset level is found during the monitoring operation, the transfusion monitoring apparatus may additionally/real-time inactivate the light receiving unit and the corresponding light receiving unit. This is because a new light-emitting unit/light-receiving unit may occur in which the light path is blocked due to the increase of the drip level in the drip bottle due to the backflow of blood through the infusion supply pipe, the decrease in the infusion rate, and the like. As described above, since the light-emitting unit/light-receiving unit in which the light path is blocked cannot perform an accurate transfusion monitoring operation, the transfusion monitoring device may selectively deactivate the newly discovered light-emitting unit/light-receiving unit.

If all the light emitting units and light receiving units are deactivated due to a high drip level, the fluid monitoring device may detect this as an abnormal state and immediately notify the medical staff.

In step S301 , if there is no light receiving unit whose absorbance is measured below the preset level, the IV fluid monitoring apparatus may activate all light receiving units and light emitting units to perform an absorbance-based IV fluid monitoring operation ( S303 ).

On the other hand, although not shown in the flowchart, the infusion monitoring apparatus may perform deactivation of the additional light emitting unit and the light receiving unit for the purpose of minimizing power consumption. As long as the light path is not blocked, the IV fluid monitoring operation is possible only with a pair of light emitting units and light receiving units. Therefore, only when there are a plurality of currently active light emitting and light receiving unit pairs, the transfusion monitoring device selects some pairs of light emitting units and light receiving units. can be further disabled.

For example, the fluid monitoring device may activate only the light emitting unit and light receiving unit pair located at the lowest (or uppermost) of the plurality of light emitting unit and light receiving unit pairs being activated, and may deactivate the rest. When only the light emitting unit and light receiving unit pair located at the bottom are activated, the fluid monitoring device can monitor whether the absorbance is measured below a preset level, and if the absorbance is measured below the preset level, the light path according to the rise in the drip level is considered to be blocked, and the corresponding light emitting unit and light receiving unit pair may be deactivated, but the light emitting unit and light receiving unit pair located on top of them may be activated.

4 is a diagram illustrating a fluid monitoring apparatus according to a second embodiment of the present invention, and FIG. 5 is a flowchart illustrating a fluid monitoring method according to a second embodiment of the present invention.

Referring to FIG. 4 , the transfusion monitoring apparatus according to the second embodiment of the present invention may include one first light emitting unit 420 and a plurality of light receiving units 430 - 1 to 430 - 3 , and the first A correspondence relationship of 1:N (N is a natural number) may be established between the light emitting unit 420 and the light receiving units 430 - 1 to 430 - 3 .

The first light emitting unit 420 faces each other with respect to any one of the plurality of light receiving units 430 - 1 to 430 - 3 (in particular, the light receiving unit 430 - 1 located at the uppermost end) and the infusion drip container 410 . It may be provided at a position where the sap is injected, and the first light may be irradiated for measuring the injection rate of the infusion. In particular, in the present embodiment, the first light emitting unit 420 may further include a rotation motor unit (not shown) connected to the light emitting device to adjust the light irradiation angle θ of the first light, and as a result, according to the first embodiment An effect similar to that in which a plurality of light emitting units are provided may occur as in FIG.

The plurality of light receiving units 430 - 1 to 430 - 3 may be arranged at a predetermined interval and in a vertical direction, and absorb the first light irradiated from the first light emitting unit 420 to measure absorbance.

Referring to FIG. 5, first, the sap monitoring device has a first light emitting unit (in particular, a light irradiation angle of the first light emitting unit) 420 to sequentially irradiate the first light with respect to the plurality of light receiving units 430-1 to 430-3. ) can be controlled, and the absorbance of the first light sequentially received/absorbed by the plurality of light receiving units 430 - 1 to 430 - 3 can be measured ( S501 ).

If, among the plurality of light receiving units 430 - 1 to 430 - 3 , the light receiving unit 430 - 3 measuring the absorbance less than a preset level is detected, the transfusion monitoring apparatus except for the detected light receiving unit 430 - 3 . Among the light receiving units 430 - 1 and 430 - 2 , the light receiving unit 430 - 2 located at the bottom may be selected as the first light receiving unit to be used/activated for infusion monitoring.

When the first light receiving unit 430-2 is selected, the transfusion monitoring device may control the first light emitting unit 420 so that the first light is irradiated only to the activated first light receiving unit 430-2 (first light emitting unit) 420 indicates whether or not to inject the infusion solution based on the absorbance measured using the first light receiving unit 430-2 and the first light receiving unit 430-2) can be monitored.

More specifically, the transfusion monitoring device may measure the absorbance for the first light in real time using the first light emitting unit 420 and the first light receiving unit 430 - 2 , and when a change in absorbance is detected It can be recognized that the fluid has been injected. Furthermore, the fluid monitoring device derives the interval between the time points at which a change in absorbance is detected (that is, the interval between the time points at which the infusion is injected) as the infusion period, and divides the amount of infusion once by the infusion period to inject the infusion. speed can be derived.

6 is a view illustrating an example of using a sap monitoring device according to an embodiment of the present invention, and FIG. 7 is a diagram illustrating a sap monitoring device according to a third embodiment of the present invention.

As illustrated in FIG. 6 , due to the collision of the injected sap and the dripped sap, a phenomenon in which the sap water droplets bounce to a certain height may occur. At this time, if the water drop bounces up to the height of the first light receiving unit 430-2, a change occurs in the absorbance measured by the first light receiving unit 430-2, and the infusion monitoring device erroneously recognizes that the infusion has been injected. Problems can arise. In addition, even when the level of the infusion solution in the drip container 410 changes up to the first light receiving unit 430 - 2 according to the movement or movement of the patient while the fluid is connected, a problem of erroneous fluid monitoring may occur. That is, when the distance between the drip level and the first light receiving unit 430 - 2 is too close, there is a high probability that the dripped sap affects the monitoring operation of the first light receiving unit 430 - 2 . It is necessary to maintain the interval between -2) and the drip water level at a certain interval or more.

Therefore, in the present specification, an additional light emitting unit (ie, the second light emitting unit) 440 for measuring the level of the sap is introduced to continuously observe the drip level of the sap, and when the drip level of the sap exceeds a certain level, (or when the distance between the drip level of the sap and the first light emitting unit approaches within a preset distance), an embodiment in which the first light receiving unit 420 is changed will be proposed.

In more detail, referring to FIG. 7 , the fluid monitoring device according to the third embodiment of the present invention may further include a second light emitting unit 440 in addition to the configuration described above in the second embodiment. The second light emitting unit 440 may perform a function of irradiating a second light for measuring the level of the sap, and adjusting the light irradiation angle θ of the second light by including at least one rotation motor. The second light emitting unit 440 may be provided in the infusion monitoring device to be coupled to the drip container at the same (substantially) same as the first light emitting unit 420 or at a lower position/height than the first light emitting unit 420 . This figure exemplifies a case in which the second light emitting unit 440 is provided at (substantially) the same position/height as the first light emitting unit 420 .

The first light emitting unit 420 performs a function of measuring the injection rate of the infusion, and the second light emitting unit 440 is the level of the infusion (in particular, the interval/distance between the first light receiving unit 430-2 and the drip level) ), the irradiation angle of the second light may always be set larger than the irradiation angle of the first light.

The transfusion monitoring device may control the second light emitting unit 440 to emit the second light toward the second light receiving unit 430 - 3 located at the lower end of the first light receiving unit 430 - 2 or at a first irradiation angle. . At this time, if the distance to the first light receiving unit 430-2 approaches within a preset distance as the drop water level rises, the second light is reflected by the sap surface and is directed to the first light receiving unit 430-2. can occur In this case, the absorbance absorbed/received by the first light receiving unit 430-2 exceeds a preset level, and the transfusion monitoring device is based on this, and the distance/interval between the drip level and the first light receiving unit 430-2 It can be recognized that it has approached within this preset distance. Furthermore, since the sap monitoring device knows the distance between the second light emitting unit 440 and the first light receiving unit 430 - 2 and the angle (θ ′) between the first and second lights, it uses a trigonometric formula Accordingly, it is also possible to derive/predict the (approximate) (vertical) distance/interval c between the actual first light receiving unit 430 - 2 and the drop level.

When recognizing that the absorbance measured by the first light receiving unit 430 - 2 exceeds a preset level, the fluid monitoring apparatus may deactivate the first and second light receiving units 430 - 2 and 430 - 3 . Furthermore, the transfusion monitoring device reselects/changes/updates the light-receiving unit 430-1 located at the upper end of the first light-receiving unit 430-2 as a new first light-receiving unit, and places the second light receiving unit 430-3 at the upper end. The located light receiving unit 430 - 2 may be reselected/changed/updated as a new second light receiving unit. In addition, the sap monitoring device is a first light emitting unit 420 (especially, the irradiation angle of the first light so that the first light can be irradiated toward the first light receiving unit 430 - 1 where the first light is reselected / changed / updated ) can be controlled, and the second light emitting unit 440 (particularly, irradiation of the second light) so that the second light is irradiated toward the reselected / changed / updated second light receiving unit 430 - 2 or at a second irradiation angle. each) can be controlled.

Through this embodiment, since the distance between the drip level and the first light receiving unit 430-1 is always maintained at a predetermined distance or more, there is an effect that a problem that the infusion monitoring accuracy is reduced due to the drip infusion is prevented.

Furthermore, the infusion monitoring device may detect bouncing infusion water droplets and process them as noise to improve the measurement accuracy of the infusion rate infusion rate. More specifically, in consideration of the fact that the infusion water droplet bounces off as a drop shock immediately after the infusion solution falls, the infusion monitoring device is configured for a predetermined time (eg, 1 second) from the time of infusion injection measured immediately before. The infusion measured within the period may be treated as noise and this may not be reflected in the measurement/derivation of the infusion rate. In a similar way, when an infusion rate that differs from the average infusion rate by more than a preset level is derived, the infusion measurement data that caused the infusion rate is treated as noise and is not reflected in the infusion rate calculation. it may not be

8 is a flowchart of a method for detecting an abnormal state of an IV based on a result of monitoring a state of an IV fluid according to an embodiment of the present invention.

The fluid monitoring device continuously monitors/observes whether the fluid is injected (S901), the fluid falling speed (S902), and/or the fluid level (S903), and based on this, the current fluid injection status for the patient is set to a normal state (S904), It can be detected by dividing into an abnormal state (S905) and a completed state (S906). Furthermore, the fluid monitoring device may transmit the detected fluid injection status information to the medical team device/server together with the specific monitoring result, and, in particular, when an abnormal state is detected, it can be transmitted to the medical team device/server by setting the priority to the highest priority. have.

When the medical staff receives an abnormal condition, based on the specific monitoring results, the medical staff may take various measures for the infusion device (control the infusion rate, eliminate the cause of blood reflux through the fluid supply pipe, etc.).

In the present specification, for convenience of explanation, the fluid monitoring operation/function of the fluid monitoring device has been mainly described, but the present disclosure is not limited thereto, and may be utilized/applied to various liquid monitoring techniques. For example, the fluid monitoring device according to an embodiment of the present invention may be used/utilized to comprehensively monitor the state of various liquids, such as urine, blood, and drugs of a patient. In this case, in the present specification, 'sap' may be replaced with 'urine, blood, drug' and the like.

Embodiments according to the present invention may be implemented by various means, for example, hardware, firmware, software, or a combination thereof. In the case of implementation by hardware, an embodiment of the present invention provides one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), FPGAs ( field programmable gate arrays), a processor, a controller, a microcontroller, a microprocessor, and the like.

In addition, in the case of implementation by firmware or software, an embodiment of the present invention is implemented in the form of a module, procedure, function, etc. that performs the functions or operations described above, and is stored in a recording medium readable through various computer means. can be recorded. Here, the recording medium may include a program command, a data file, a data structure, etc. alone or in combination. The program instructions recorded on the recording medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. For example, the recording medium includes a magnetic medium such as a hard disk, a floppy disk, and a magnetic tape, an optical recording medium such as a compact disk read only memory (CD-ROM), a digital video disk (DVD), and a floppy disk. magneto-optical media, such as a disk, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions may include high-level language codes that can be executed by a computer using an interpreter or the like as well as machine language codes such as those generated by a compiler. Such hardware devices may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

In addition, the device or terminal according to the present invention may be driven by a command to cause one or more processors to perform the functions and processes described above. For example, such instructions may include interpreted instructions, such as script instructions, such as JavaScript or ECMAScript instructions, or executable code or other instructions stored on a computer-readable medium. Furthermore, the device according to the present invention may be implemented in a distributed manner across a network, such as a server farm, or may be implemented in a single computer device.

Further, a computer program (also known as a program, software, software application, script or code) mounted on the device according to the invention and executing the method according to the invention includes compiled or interpreted language or a priori or procedural language. It can be written in any form of programming language, and can be deployed in any form, including stand-alone programs, modules, components, subroutines, or other units suitable for use in a computer environment. A computer program does not necessarily correspond to a file in a file system. A program may be in a single file provided to the requested program, or in multiple interacting files (eg, files that store one or more modules, subprograms, or portions of code), or portions of files that hold other programs or data. (eg, one or more scripts stored within a markup language document). The computer program may be deployed to be executed on a single computer or multiple computers located at one site or distributed over a plurality of sites and interconnected by a communication network.

Although each drawing is described separately for convenience of description, it is also possible to design to implement a new embodiment by merging the embodiments described in each drawing. In addition, the present invention is not limited to the configuration and method of the described embodiments as described above, but the above-described embodiments are configured by selectively combining all or part of each embodiment so that various modifications can be made. it might be

In addition, although preferred embodiments have been illustrated and described above, the present specification is not limited to the specific embodiments described above, and those of ordinary skill in the art to which the specification pertains without departing from the gist of the claims Various modifications are possible by a person, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present specification.

Claims (16)

In the fluid monitoring device,
a light emitting unit that irradiates light into the infusion drip container;
a light receiving unit that absorbs the light irradiated from the light emitting unit and measures absorbance;
a coupling unit for coupling the light emitting unit and the light receiving unit on the infusion dropper; and
a control unit controlling the light emitting unit and the light receiving unit to monitor the state of the infusion solution injected into the infusion drip container based on the absorbance measured by the light receiving unit; including,
The light emitting unit and the light receiving unit,
A plurality of fluid monitoring devices are provided and have a one-to-one correspondence with each other,
The light emitting unit and the light receiving unit corresponding one-to-one are coupled to each other at positions opposite to each other with respect to the infusion drip container,
The control unit is
Selectively inactivated for at least one light receiving unit measuring less than a preset level among the absorbances measured by the plurality of light receiving units,
The at least one light receiving unit and selectively inactivating at least one light emitting unit corresponding to one-to-one, the transfusion monitoring device. The method of claim 1,
The state of the sap is,
Including at least one of whether the fluid is injected, the injection rate of the fluid, and the level of the fluid in the fluid drip container, the fluid monitoring device. delete delete The method of claim 1,
The control unit is
The absorbance is measured in real time using the remaining light emitting units and light receiving units except for the deactivated light emitting unit and light receiving unit,
When a change in the absorbance is detected, the fluid monitoring device that recognizes that the fluid is injected at the time the change is detected. 6. The method of claim 5,
The control unit is
The interval between the first and second time points at which a change in the absorbance is detected is derived as an infusion cycle,
An infusion monitoring device for deriving the injection rate of the infusion by dividing the amount of infusion at one time by the period of injecting the infusion. delete delete delete delete delete delete delete delete delete delete

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