KR20060111424A

KR20060111424A - A device for measuring the flow rate of ringer solution using an image sensor

Info

Publication number: KR20060111424A
Application number: KR1020060094373A
Authority: KR
Inventors: 강상욱
Original assignee: 한성대학교 산학협력단
Priority date: 2006-09-27
Filing date: 2006-09-27
Publication date: 2006-10-27

Abstract

A device for measuring a flow rate of ringer's solution using an image sensor is provided to be affected a little by a kind of the ringer's solution and a surrounding lightness, to have no worry about a pollution, and to reduce a manufacturing cost. The device includes an image sensor(1), a focusing lens(2), and a light emitting diode(3) installed on the outside of a tube(10), a digital signal processing device(7) for converting into an electric signal by processing a minute distribution shape image of bubbles contained in ringer's solution that flows in the tube captured by the image sensor to a digital signal, and a microprocessor(8) for calculating a flux of the ringer's solution that flows in the tube by analyzing the electric signal.

Description

A device for measuring the flow rate of Ringer solution using an image sensor}

도 1은 본 발명의 실시 예에 따른 링거액 주입 속도 측정 장치 개략도1 is a schematic diagram of a ringer liquid injection rate measuring apparatus according to an embodiment of the present invention

본 발명은 점적 챔버(5)의 하단부에 연결된 튜브(10)의 외각에 이미지 센서(1)를 부착하여 환자에게 링거액 주입 상태에 대한 다양한 정보를 제공해주는 링거액 주입 상태 모니터링 장치에 관한 것이다.The present invention relates to a ringer fluid injection state monitoring device that attaches the image sensor 1 to the outer surface of the tube 10 connected to the lower end of the drop chamber 5 to provide various information on the ringer fluid injection state to the patient.

종래의 링거액 주입 상태 모니터링 장치로는,As a conventional ringer liquid injection state monitoring device,

적외선 센서(포토 센서)를 점적 챔버(5)의 외각에 설치하여, 떨어지는 점적(4)들이 적외선을 차단하는 순간의 시간 간격을 측정하는 장치는 적외선 센서가 태양 빛 및 형광등 빛 등과 같은 외부 빛에 민감하기 때문에 적외선 센서를 포함한 점적 챔버를 불투명한 재질로 밀폐시켜야하는 단점이 있고(결과적으로 사용자가 점적의 낙하 상태를 볼 수가 없음.), 더구나 점적 챔버가 비스듬히 기울여졌을 경우에는 점적 챔버 내에서 낙하하는 점적이 적외선을 통과하지 않기 때문에 점적을 센싱할 수 없는 단점이 있다.An infrared sensor (photo sensor) is installed outside the drip chamber 5 to measure the time interval at which the falling drops 4 block infrared light. It is sensitive and has the disadvantage of sealing the drip chamber, including the infrared sensor, with an opaque material (as a result the user cannot see the drop state), and moreover, if the drip chamber is tilted at an angle, the drip chamber falls. Because the droplets do not pass through the infrared rays, the droplets cannot be sensed.

따라서, 본 발명은 상술한 바와 같은 종래의 링거액 주입 상태 모니터링 장치들의 문제점을 해결하기 위해 안출된 것으로,Therefore, the present invention has been made to solve the problems of the conventional ringer liquid injection state monitoring apparatus as described above,

본 고안의 목적은 링거액의 종류 및 주변 밝기에 영향을 덜 받고 오염의 염려가 전혀 없으며 소형이면서 제작 비용이 적게 드는 링거액 주입 상태 모니터링 장치를 제공하는 데에 있으며, 이하 첨부된 도면에 의거 본 발명의 구성 및 작용을 상세히 설명하면 다음과 같다. An object of the present invention is to provide a ringer liquid injection state monitoring device that is less affected by the type of ringer liquid and ambient brightness, there is no concern about contamination, and is small and low in manufacturing cost, and according to the accompanying drawings of the present invention The configuration and operation will be described in detail as follows.

본 발명에서 예시되는 실시 예는 도 1에서 도시된 바와 같이, 튜브의 외각에 이미지 센서(1), 초점 렌즈(2), 발광 다이오드(3)을 설치하여, 튜브(10) 속을 흐르는 링거액의 이미지(링거액 속에 포함되어 있는 미세한 기포들의 분포 이미지)가 이미지 센서에 촬상되도록 하고, 촬상된 이미지의 변화를 디지털 신호 처리 장치(7)로 분석하여 링거액의 유량(유속과 튜브 단면적의 곱)을 마이크로프로세서(8)에 의해 계산하는 방안을 보여준다.According to the exemplary embodiment of the present invention, as shown in FIG. 1, the image sensor 1, the focus lens 2, and the light emitting diode 3 are installed at the outer surface of the tube, so that the The image (distribution image of the fine bubbles contained in the Ringer's solution) is captured by the image sensor, and the change of the captured image is analyzed by the digital signal processing apparatus 7 to determine the flow rate (the product of the flow rate and the tube cross-sectional area) of the Ringer's fluid. The calculation by the processor 8 is shown.

이상과 같이 본 발명에 의하면 점적 챔버 대신에 튜브에 센서를 부착하는 방법에 의해 링거액의 주입 속도 및 주입량을 계산할 수 있으므로, 환자는 점적 챔버에서 떨어지는 점적의 상태를 눈으로 직접 확인할 수 있으며, As described above, according to the present invention, the infusion rate and infusion amount of Ringer's solution can be calculated by attaching a sensor to the tube instead of the drop chamber, so that the patient can directly check the state of the drop falling from the drop chamber.

링거액 주입 상태를 실시간으로 모니터링 하는 것이 가능하므로, 링거액의 주입 속도가 갑자기 변하는 원치 않는 상황이 발생 시 경보 신호를 환자에게 즉시 통보가 가능하며, 특히 이동 중에 발생하는 원치 않는 링거액 주입 속도의 변화를 감지하여 경보 신호를 환자에게 통보할 수 있으며,It is possible to monitor the state of infusion of Ringer's fluid in real time, so that an alarm signal can be immediately notified to the patient when an unwanted situation in which the infusion rate of Ringer's infusion is suddenly changed is detected. Alarm signal to the patient,

링거액의 주입량을 실시간으로 측정이 가능하므로, 원하는 만큼의 링거액이 주입되었을 때 경보 신호를 환자에게 보내 줄 수 있으며,Since the amount of Ringer's fluid can be measured in real time, an alarm signal can be sent to the patient when the amount of Ringer's fluid is injected.

링거액이 모두 소진되었을 경우 튜브 내의 링거액의 유속이 영(0)인 것으로 측정이 되므로, 링거액이 모두 소진되었을 때 이를 경보 신호로 환자에게 통보해 줄 수 있는 효과가 제공된다.When all of the Ringer's fluid is exhausted, the flow rate of the Ringer's fluid in the tube is measured to be zero, thus providing the effect of notifying the patient as an alarm signal when the Ringer's fluid is exhausted.

Claims

An image sensor 1, a focus lens 2, and a light emitting diode 3 provided at an outer surface of the tube 10;

A digital signal processing device (7) for converting an electrical signal by performing digital signal processing on a finely distributed image of bubbles contained in a ringer liquid flowing in a tube captured by the image sensor (1);

Ringer's fluid injection rate measuring device characterized in that it comprises a microprocessor (8) for analyzing the electrical signal to calculate the flow rate of Ringer's fluid flowing through the tube.

The method of claim 1,

The image sensor 1 and the focus lens 2 are arranged in a line on one side of the transparent tube 10, and the light emitting diode 3 is installed at the lower part of the image sensor and the focus lens so that the light emitted from the light emitting diode Apparatus for measuring the ringer fluid injection speed, characterized in that after the reflection on the tube passes through the focus lens to reach the image sensor.

The method of claim 1,

The flow rate of the Ringer's liquid flowing through the tube is calculated by the method of multiplying the flow rate measured by the image sensor and the cross-sectional area of the tube.