KR20160149927A - Device for automatically adjusting medication-speed of infusion solution - Google Patents

Device for automatically adjusting medication-speed of infusion solution Download PDF

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Publication number
KR20160149927A
KR20160149927A KR1020150087775A KR20150087775A KR20160149927A KR 20160149927 A KR20160149927 A KR 20160149927A KR 1020150087775 A KR1020150087775 A KR 1020150087775A KR 20150087775 A KR20150087775 A KR 20150087775A KR 20160149927 A KR20160149927 A KR 20160149927A
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KR
South Korea
Prior art keywords
image
liquid
unit
rate
control valve
Prior art date
Application number
KR1020150087775A
Other languages
Korean (ko)
Inventor
김성수
Original Assignee
김성수
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Publication date
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Priority to KR1020150087775A priority Critical patent/KR20160149927A/en
Publication of KR20160149927A publication Critical patent/KR20160149927A/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating valves
    • A61M2005/172—

Abstract

The present invention relates to a device for automatically controlling the rate of infusion of a liquid which can be easily installed on a conventional infusion set with a very simple structure, An image capturing means 100 for capturing an image of the interior of the drip tube 20 and acquiring an image of the droplet W falling therefrom, a flow control valve An image signal input unit 310 for signal processing the image acquired from the image acquisition means 100 and inputting the image signal to the control unit 320 and a control unit 320 for analyzing the image signal input from the image signal input unit 310 A control unit 320 for controlling the flow rate control valve 200 so as to calculate a fluid administration rate and to supply fluid at an administration rate within a predetermined range based on the calculated fluid administration rate; For driving and controlling the opening amount of the flow control valve 200 according to the output characterized in that it comprises a valve driving section 330. The

Description

TECHNICAL FIELD [0001] The present invention relates to a device for automatically adjusting the rate of infusion of a liquid,

More particularly, the present invention relates to a device for automatically controlling the rate of administration of a sap to be administered to a patient, and more particularly, And an automatic regulating device for controlling the rate of fluid infusion so that the fluid can be easily attached to an existing fluid set.

In general, a liquid set includes a liquid container 10 filled with a liquid and a drop tube 20 connected to the liquid container 10 through a connection port 11 to check the state of the liquid being dropped. A hose 30 connected to the drip tube 20, a liquid controller 40 for adjusting the amount of liquid, and a syringe 50 injected into the blood vessel of the patient.

The drip tube 20 includes a main body 21 in which a predetermined amount of liquid is stored, an inflow hole 22 into which the infusion liquid of the infusion vessel 10 flows, and an outflow tube 23 through which the infusion liquid flows out into the hose 30 .

The rate of administration of the liquid is controlled by controlling the rate of drop of the droplet W falling inside the drop tube 20, The knob 41 of the fluid regulator 40 is adjusted to adjust the rate of the appropriate liquid solution.

However, the conventional method for controlling the rate of administration of the liquid is controlled through the knob 41 of the liquid controller 40. When the administration of the liquid for a long period of time is advanced, The nurse or the caregiver has had to inconvenience and inconvenience that the nurse or the caregiver should adjust them again using the fluid regulator 40. However,

Accordingly, in order to solve such a problem, Korean Patent Laid-Open No. 10-2012-0076604 discloses an automatic fluid control device and system.

The present invention relates to an automatic fluid control device and system capable of accurately calculating an infusion rate of infusion fluid and accurately controlling the infusion rate of infusion fluid using the information obtained by the weighing part and the infusion / A weight measuring unit for measuring a change amount of the weight of the sap, a droplet sensing unit for sensing droplets falling from the droplet, and a driving unit for controlling the infusion rate of the sap, .

In addition, this technology allows the management server to receive information on the amount of fluid remaining from the automatic fluid control device, the infusion rate of the infusion fluid, and the infusion completion time of the infusion fluid, You can also adjust the speed. Therefore, it is possible to quickly remove the needle from the patient immediately after the infusion of the fluid is completed, and to prevent the waste of the medical personnel or waste of the remaining fluid in order to control the infusion rate of the infusion fluid or check the remaining amount of the fluid. to provide.

However, this technique has a problem that the configuration becomes complicated and the cost increases due to too precise sensing and control.

In addition, this technique has a problem that it can not be easily adopted in a common liquid set.

Korean Patent Publication No. 10-2012-0076604, Korean Patent Publication No. 10-2003-0014824, Korean Patent Laid-Open No. 10-2013-0063314

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for detecting a rate of a liquid to be administered, And to provide an apparatus for automatically adjusting the rate of administration of the liquid so that the liquid can be easily attached and used.

In order to accomplish the above object, according to the present invention, there is provided a liquid container comprising: a liquid container filled with liquid; a drip tube connected to the liquid container through a connection port to check the state of the liquid drop; An apparatus for automatically adjusting a liquid injection rate of a liquid set including a syringe connected to a hose and injected into a blood vessel of a patient, the apparatus comprising: image acquiring means for acquiring an image of a droplet dropping inside the drip tube; A flow control valve interposed in the hose to control the flow rate of the liquid; A video signal input unit for signal processing the image acquired from the image acquisition unit and inputting the signal to the control unit; A controller for analyzing a video signal input from the video signal input unit to calculate a liquid administration rate and controlling the flow rate control valve to supply liquid at an administration rate within a set range based on the calculated liquid administration rate; And a valve driving unit for controlling the amount of opening and closing of the flow control valve in accordance with the output of the control unit.

In addition, according to the present invention, the image acquiring means includes a gripper and a camera connected to one side of the handle of the gripper.

According to the present invention, the control unit divides an image photographed by the image acquiring unit into a plurality of sections, and calculates a moving speed according to the distance when detecting a time difference in which the droplets moving in each divided section are detected .

As described above, the present invention provides an advantage that the speed of the administered liquid is sensed and the rate of the applied liquid is automatically adjusted to a set value, and can be easily mounted on a conventional liquid set with a simple structure.

1 is a schematic view of a general liquid set,
FIG. 2 is a block diagram of a set of a fluid to which the present invention is applied,
3 is a detailed configuration diagram of the image acquiring means according to the present invention,
FIG. 4 is a block diagram of an image screen division of a liquid droplet according to the present invention,
5 is a control flow chart of an automatic regulating device for a liquid infusion rate according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

In the drawings, the same reference numerals as used in the appended claims are used throughout the drawings to refer to the same or like parts. The detailed description of the present invention will be omitted if it is determined that the gist of the present invention may be unnecessarily blurred.

Fig. 2 is a configuration diagram of a set of liquids to which the present invention is applied.

As shown in the figure,

A drip tube 20 connected to the drip tube 20 through the connection port 11 so as to confirm a state where the liquid drops from the drip tube 20; And a syringe (50) connected to the hose (30) and scanned into a blood vessel of a patient, wherein the inside of the drip tube (20) An image acquiring unit 100 for acquiring an image of a falling object, a flow control valve 200 disposed in the hose 30 to adjust the flow rate of the liquid, The image signal input unit 310 receives signals from the image signal input unit 310 and inputs the signals to the control unit 320. The image signal input unit 310 analyzes the image signals input from the image signal input unit 310 to calculate the liquid injection rate, To be supplied with the liquid at the rate of administration And a controller 320 for controlling the control valve 200, a valve driver 330 for driving and controlling the opening amount of the flow control valve 200 in accordance with an output of the controller 320.

The image acquiring unit 100 includes a clamp unit 110 and a camera unit 120 as shown in FIG.

The grip unit 110 has a structure in which the grip unit 111 and the grip 112 are coupled through a hinge unit 113 and a camera unit 120 is formed at one side of the grip unit 112 via a connection unit 114 do.

The camera unit 120 includes a lens 121 in front and a power and data line 122 in the rear.

The image acquisition means 100 configured as described above allows the user to fix the tongue 111 to the lower portion of the drop tube 20 by using the gripper 110. The lens 121 of the camera portion 120 is inserted into the drop tube It is possible to photograph the inside of the camera 20.

The camera unit 120 photographs the inside of the drop tube 20 and captures the movement of the droplet W falling down from the inflow hole 22 of the drop tube 20.

The flow rate regulating valve 200 is a valve for regulating the flow rate of the liquid to be injected into the body through the hose 30 and may be constituted by an opening / closing regulating valve of a known type, .

The adjustment of the flow rate control valve 200 adjusts the flow rate of the liquid solution and changes the dropping rate of the droplet W dropped from the drop pipe 20.

That is, the drop rate of the water droplet W means the rate of administration of the liquid.

The image signal input unit 310 is input circuit means for signal processing the image acquired from the image acquisition means 100 and inputting the signal to the control unit 320.

The control unit 320 analyzes the video signal input from the video signal input unit 310 and calculates the liquid administration rate.

That is, an image photographed through the image acquiring unit 100 is divided into a plurality of sections S as shown in FIG. 4, and droplets W moving in each of the divided sections S are observed.

Especially when a time difference is detected in the direction in which the droplet W falls, for example, in the upper section S1 and then in the lower section S2 where the droplet W is photographed and located, W can be calculated, and the speed at which the droplet W drops can be calculated.

Knowing the drop rate of the drop of water W falling in the drop pipe 20 as described above, the rate of application of the liquid is known.

Further, when the administration rate of the liquid is calculated, the controller 320 determines whether the rate is the administration rate of the liquid within the set range.

According to the present invention, the setting unit 340 may be further connected to the control unit 320.

The setting unit 340 is a key input unit for setting a range of the liquid injection rate.

Accordingly, the control unit 320 outputs a control signal for controlling the flow rate of the flow control valve 200 so that the rate of administration of the fluid is maintained within a predetermined range.

The valve driving unit 330 drives and controls the opening / closing amount of the flow control valve 200 according to the output of the control unit 320.

The overall operation of the apparatus for automatically adjusting the liquid injection rate according to the present invention will be described with reference to the flowchart of FIG.

First, the image acquiring means 100 is attached to the drop tube 20 of the liquid set using the clamping unit 110.

Then, the flow control valve 200 is interposed between the hoses 30.

Then, the liquid administration rate is set through the setting unit 340 and the operation is started.

The droplet of water W drops in the drip tube 20 and this operation is photographed through the camera unit 120 of the image acquisition means 100. In step S11,

The image photographed through the camera unit 120 of the image acquiring unit 100 is processed through the image signal input unit 310 and input to the control unit 320. [

The controller 320 analyzes the video signal input from the video signal input unit 310 (step S12)

That is, an image photographed through the image acquiring unit 100 is divided into a plurality of sections S as shown in FIG. 4, and a droplet W moving in each of the divided sections S is observed, Respectively.

It is determined whether the rate of administration of the sap solution is within the range of the administration rate of the sap solution set through the setting unit 340. [

As a result of the determination, if the rate of administration of the liquid is less than the predetermined range, the valve driving unit 330 outputs a command to increase the opening amount of the flow control valve 200 (steps S13 and S14)

Therefore, as the amount of the solution increases, the rate of application of the solution becomes faster, the drop rate of the water droplet (W) within the drop pipe 20 increases, and the number of drops of the droplet increases.

However, if the rate of administration of the fluid exceeds the set range, a command to decrease the opening amount of the flow control valve 200 is outputted to the valve driving part 330 (steps S15 and S16)

Accordingly, the delivery rate of the liquid is slowed down while the amount of the liquid drops, the rate of drop of the droplet W in the drip tube 20 becomes slow, and the number of drops of the droplet drops.

And outputs a command to maintain the current opening amount of the flow control valve 200 to the valve driving unit 330 when the administration rate of the fluid is within the set range (step S17)

Therefore, while the amount of liquid remains the current state, the rate of application of the liquid is maintained, and the drop rate of the droplet W in the drop tube 20 and the number of drop of the droplet remain in the current state .

That is, the liquid injection rate is automatically adjusted to a predetermined value by using a feedback signal based on the drop rate of the droplet W through the image acquisition means 100.

100: Image acquiring means 110:
120: camera part 200: flow control valve
310: video signal input unit 320:
330: valve driving unit 340:

Claims (3)

A drip tube 20 connected to the drip tube 20 through the connection port 11 so as to check the state of the liquid being dropped; And a syringe (50) connected to the hose (30) and injected into a blood vessel of a patient, the apparatus comprising: a hose (30)
An image acquiring means (100) for photographing the inside of the drip tube (20) and acquiring an image in which the droplet (W) drops;
A flow control valve 200 interposed in the hose 30 to control the flow rate of the liquid;
A video signal input unit 310 for signal processing the image acquired from the image acquisition means 100 and inputting the signal to the control unit 320;
The image signal inputted from the image signal input unit 310 is analyzed to calculate the liquid administration rate and the flow rate control valve 200 is controlled so that the liquid is supplied at a dosage rate within a set range based on the calculated liquid solution administration rate A control unit 320; And
And a valve driving unit (330) for controlling the opening and closing amount of the flow control valve (200) according to the output of the control unit (320).
The method according to claim 1,
Wherein the image acquiring unit includes a gripper unit and a camera unit connected to one side of the handle of the gripper unit. .
The method according to claim 1,
The controller 320 divides the image photographed by the image acquiring unit 100 into a plurality of sections S and detects a time difference in which the droplet W moving in each divided section S is located And calculating a moving speed according to the distance.
KR1020150087775A 2015-06-19 2015-06-19 Device for automatically adjusting medication-speed of infusion solution KR20160149927A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190071908A (en) * 2017-12-15 2019-06-25 주식회사 이신우 Unit for measuring volume of liquid/gas and apparatus for controlling supply of liquid/gas comprising the same
WO2020246731A1 (en) * 2019-06-05 2020-12-10 주식회사 케이알앤디 Method and system for measuring amount of drops injected into human body, and system and method for remotely controlling amount of drops using same
KR20210088797A (en) * 2020-01-06 2021-07-15 부산대학교 산학협력단 System for Monitoring Fluid Injection
KR20220109884A (en) * 2021-01-29 2022-08-05 한남대학교 산학협력단 System for intravenous fluid monitoring
KR20230112192A (en) * 2022-01-19 2023-07-27 동국대학교 산학협력단 Infusion rate measurement system and method using droplet recognition in mobile device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120076604A1 (en) 2010-09-29 2012-03-29 Raildecks (2009) Inc. Collapsible intermodal transport platform

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120076604A1 (en) 2010-09-29 2012-03-29 Raildecks (2009) Inc. Collapsible intermodal transport platform

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190071908A (en) * 2017-12-15 2019-06-25 주식회사 이신우 Unit for measuring volume of liquid/gas and apparatus for controlling supply of liquid/gas comprising the same
WO2020246731A1 (en) * 2019-06-05 2020-12-10 주식회사 케이알앤디 Method and system for measuring amount of drops injected into human body, and system and method for remotely controlling amount of drops using same
KR20210088797A (en) * 2020-01-06 2021-07-15 부산대학교 산학협력단 System for Monitoring Fluid Injection
KR20220109884A (en) * 2021-01-29 2022-08-05 한남대학교 산학협력단 System for intravenous fluid monitoring
KR20230112192A (en) * 2022-01-19 2023-07-27 동국대학교 산학협력단 Infusion rate measurement system and method using droplet recognition in mobile device

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