KR20050001030A - Control device for an electric leakage of medical facilities - Google Patents

Control device for an electric leakage of medical facilities Download PDF

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Publication number
KR20050001030A
KR20050001030A KR1020030042084A KR20030042084A KR20050001030A KR 20050001030 A KR20050001030 A KR 20050001030A KR 1020030042084 A KR1020030042084 A KR 1020030042084A KR 20030042084 A KR20030042084 A KR 20030042084A KR 20050001030 A KR20050001030 A KR 20050001030A
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South Korea
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leakage current
medical device
medical
power
current detection
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KR1020030042084A
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Korean (ko)
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한기헌
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한기헌
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

Abstract

PURPOSE: An apparatus for detecting leakage current of medical implements to prevent malpractices and a control device thereof are provided to minimize an influence to a patient by sensing accurately the amount of current applied to each of electrical outlets. CONSTITUTION: An UPS(1) provides power to each of electrical outlets(3) and includes ground terminals(4). A leakage current sensing unit is connected to each of the electrical outlets and the ground terminals in order to sense the amount of input and output currents of medical instrument between 1mA to 15mA. A power control unit controls the supply power. An indication unit(7) indicates leakage states by using images and alarm sound according to a sensed result of the leakage current sensing unit. A central control center(8) is connected to the leakage current sensing unit, the indication unit, and the power control unit.

Description

의료사고방지를 위한 의료기기용 누설전류 검출 및 그 제어장치{Control device for an electric leakage of medical facilities}Leakage current detection and control device for medical devices to prevent medical accidents {Control device for an electric leakage of medical facilities}

본 발명은 의료기에 적용되는 누설전류 검출과 그 제어장치에 관한 것이다.The present invention relates to a leakage current detection and its control device applied to medical devices.

특히, 환자와 의료진의 안전을 도모하면서도 진단과 치료를 위한 각종 정밀의료기가 최적의 상태로 정상작동되어 불의의 의료사고가 발생되지 않도록 각 의료기의 미세한 누설전류라도 이를 검출하여 현장의 관리자에게 인식시키거나 또는 각 병실의 누설전류 유무가 중앙통제실을 통하여 일괄 제어될 수 있도록 제공되는 누설전류 검출 및 그 제어장치에 관한 것이다.In particular, the micro-leakage current of each medical device is detected and recognized by the on-site manager so that various precision medical devices for diagnosis and treatment are operated in an optimal state in order to promote the safety of patients and medical personnel, and thus prevent accidental medical accidents. The present invention relates to a leakage current detection device and a control device provided such that presence or absence of leakage current in each room can be collectively controlled through a central control room.

일반적으로 응급환자를 다루는 대부분의 병원 등 의료기관에서는 순간정전으로 귀중한 인명이 손상될 우려가 높아 정전상태에서도 가동되는 무정전전원장치(UPIn general, medical facilities such as hospitals dealing with emergency patients are likely to damage valuable lives due to instantaneous blackouts.

S:Uninterruptible Power Supply)를 통해 전원을 공급하고 있으며, 이러한 외부전원을 인가받아 병원 각각의 응급실이나 수술실에서는 환자의 상태를 지속적으로 첵크하거나 치료하기 위한 목적으로 각종의 의료용 장비를 운영하고 있다.Power is supplied through S: Uninterruptible Power Supply, and each type of medical equipment is operated in the emergency room or operating room of the hospital to continuously check or treat the patient's condition.

이때, 정상인과는 달리 환자의 경우에는 최적으로 설정된 값 이상의 미세한 누설전류라도 심각한 위험상황이 초래될 수 있어 전류의 흐름에 대한 첵크는 매우 중요한 의미를 갖고 있다.At this time, unlike the normal person, even in the case of a minute leakage current of more than the optimal value in the case of a serious dangerous situation can be caused, the check on the flow of the current has a very important meaning.

전류의 누설은 여러 원인에 의해 발생되며, 대부분의 의료기구 제품표면이 전류의 흐름과 친한 도전성 물질로 이루어진 것임을 고려할 때에 환자는 물론 의료인의 감전사고 위험은 매우 높다는 문제점을 포함하고 있다.The leakage of current is caused by a number of causes, including the problem that the risk of electric shock for patients as well as medical personnel is very high, considering that the surface of most medical devices is made of a conductive material that is friendly to the flow of current.

본 발명과 같은 분야의 선행기술로는 2000. 05. 31.등록된 국내 등록실용신안 제20-0192119호“병원용 누설전류 감지장치”가 제안되어 있다.As a prior art in the same field as the present invention, Korean Registered Utility Model No. 20-0192119, "Leakage Current Sensing Device for Hospital," registered on May 31, 2000, has been proposed.

위 선등록고안은 변압기의 2차권선측과 접지플레이트에 연결되어 누설전류의 감지를 위한 누설전류감지부가 마련되어 있고, 이 누설전류감지부에 연결되어 누설전류가 1.7㎃∼2.0㎃의 설정치 이상이면 이를 표시하여 주거나 경보음이 발하여지는 경보구동부를 포함하여 전기적인 사고를 방지하고자 하였다.The above pre-registration proposal is connected to the secondary winding side of the transformer and the ground plate to provide a leakage current sensing unit for detecting leakage current. When the leakage current is connected to the leakage current sensing unit, the leakage current is equal to or higher than the set value of 1.7 ㎃ to 2.0 ㎃. This was intended to prevent electrical accidents, including the alarm driver that displays or emits an alarm sound.

그러나, 상기의 선등록고안에 따르면 콘센트는 변압기의 2차권선측에 연결되어 있으며, 누설전류감지부는 2차권선측과 접지플레이트에 연결되어 소정의 검출기능을 담당하고 있으므로 각각의 콘센트를 통해 누설되는 전류를 검출할 수 없었고, 당연히 개별적인 의료기의 이상유무를 확인할 방법이 없었다.However, according to the pre-registration proposal above, the outlet is connected to the secondary winding side of the transformer, and the leakage current sensing unit is connected to the secondary winding side and the ground plate to perform a predetermined detection function, so that leakage through each outlet There was no way to detect the current, and of course there was no way to check the status of individual medical devices.

또한, 상기 선등록고안은 누설되는 접지플레이트 연결되어 누설전류의 검출을 위한 설정값이 1.7㎃∼2.0㎃가 되도록 회로가 구성되어 있어 그 이하의 미세전류 누설에 대한 검출이 곤란하였으며, 각 수술실이나 응급실마다 개별적인 경보구동부를 설치하므로 보호자나 의료인이 자리를 비운사이에 발생되는 긴급상황에서는 즉시적인 대처가 곤란하였고, 각 설치장소에 대한 일률적이고도 종합적인 통제 역시 곤란하여 선별 또는 일괄된 전원차단 등의 조치를 수행할 수 없었다.In addition, the pre-registration proposal is connected to a grounding plate leaking, the circuit is configured so that the set value for the detection of the leakage current is 1.7 kV to 2.0 kV, it was difficult to detect the micro current leakage below it, Each emergency room has its own alarm driver, so it is difficult to respond immediately in case of emergency while guardians or medical workers are away.In addition, uniform and comprehensive control of each installation location is also difficult. Could not be taken.

따라서, 병원이라는 장소의 특성상 각 콘센트별(또는 의료기별)미세전류의 누설유무에 대한 정밀한 검출과 함께 항상 어느때라도 의료기가 작동되고 있는 각각의 장소에 대한 이상 유무확인을 통해 신속한 조치 등 일괄 통제가 이루어질 수 있도록 한 시스템의 구비가 각별히 요망되고 있다.Therefore, due to the nature of the hospital's location, it is possible to perform a precise control of the leakage of micro currents at each outlet (or medical device), as well as to promptly control the system through prompt checks for abnormalities at each place where the medical device is operating at any time. It is particularly desirable to have one system to achieve this.

본 발명은 상기와 같은 요구사항의 만족을 위해 안출된 것으로, UPS무정전전원장치를 통해 인가된 전원이 분기되어 각 콘센트에 접속된 상태에서 각각의 의료기를 운영 가동시킴에 있어서, 개별화 된 각 콘센트별로 인가되는 전원의 미세한 흐름을 항상 고감도로 검출하여 환자에 미치는 영향을 최소화하고, 신속한 대응이 가능할 수 있게 하였고, 중앙통제실을 통한 일괄적인 제어로 인해 경제적인 관리와함께 효율성 높은 위험방지 프로그램이 가능한 누설전류 검출 및 그 제어장치를 제공함에 그 목적이 있다.The present invention has been made to satisfy the above requirements, in the operation of operating each medical device in the state that the power applied through the UPS uninterruptible power supply is connected to each outlet, for each individual outlet The sensitive flow of the applied power is always detected with high sensitivity to minimize the impact on the patient, to enable rapid response, and the collective control through the central control room enables economical management and efficient risk prevention programs. Its purpose is to provide a current detection and its control device.

도 1은 본 발명에 의한 누설전류 검출과 그 제어장치를 도시한 계통도.1 is a schematic diagram showing a leakage current detection and a control device according to the present invention.

도 2는 본 발명에 의한 누설전류 검출과 그 제어장치를 도시한 블록도.2 is a block diagram showing a leakage current detection and a control device thereof according to the present invention.

도 3은 본 발명 장치의 설치상태를 도시한 실시예도.Figure 3 is an embodiment showing an installation state of the device of the present invention.

*주요부분에 대한 부호의 설명** Explanation of symbols for main parts *

1 : UPS무정전전원장치 2 : 변압기1 UPS Uninterruptible Power Supply 2 Transformer

3 : 콘센트 4 : 접지단자3: outlet 4: earthing terminal

5 : 누설전류감지부 6 : 전원제어부5: leakage current detection unit 6: power supply control unit

7 : 표시수단 8 : 중앙통제실7: Display means 8: Central control room

상기의 목적 달성을 위한 본 발명은 UPS무정전전원장치로 인가된 전원이 분기되어 각 콘센트에 접속되고, 독립된 각 의료기의 접지단자가 구비된 의료시설물 전원공급장치에 있어서, 변압기의 2차권선측에서 출력된 교류전원이 각 의료기의 접지단자를 통해 접지전위점에 접속된 후 UPS전원공급선 모두의 온/오프작동으로 누설전류감지와 의료기의 안전작동을 위해 상기 각 콘센트 및 접지단자와 연결접속되어 전원의 양 공급선을 따라 의료기의 입출력된 전류의 양을 1㎃∼15㎃범위에서 고도감지하는 누설전류감지부; 전원제어부; 상기 누설전류감지부의 감지결과를 인가받아 이를 영상과 경보음으로 발하여 주는 표시수단; 및 위치와 장소를 달리하는 각 누설전류감지부와 표시수단과 연결되어 동일의 영상과 경보음이 표식되어 전원제어부와 연결되는 중앙통제실이 유기적으로 제공됨을 특징으로 한다.The present invention for achieving the above object is a medical facility power supply device having a ground terminal of each of the medical equipment is connected to each outlet by the power applied to the UPS uninterruptible power supply, at the secondary winding side of the transformer The output AC power is connected to the ground potential point through the ground terminal of each medical device, and then connected to each outlet and ground terminal for detecting leakage current and safe operation of the medical device by on / off operation of all UPS power supply lines. Leakage current detection unit for detecting the amount of input and output current of the medical device in the range of 1 ~ 15V A along both supply lines of the; A power control unit; Display means for receiving the detection result of the leakage current detection unit and emitting the result as an image and an alarm sound; And a central control room that is connected to each of the leakage current detection units and the display means having different positions and locations, and the same image and alarm sound are connected to the power control unit.

본 발명의 누설전류 검출 및 그 제어장치는 이하의 상세한 설명을 통해 보다 구체적으로 재현될 수 있을 것이다.Leakage current detection and its control apparatus of the present invention will be more specifically reproduced through the following detailed description.

주지하다시피, 초당 50㎃ 정도의 전류가 건강한 사람의 인체와 접촉하게 될 경우 심각한 위험상황이 초래될 수 있는데, 특히 저항력이 떨어져 있는 환자의 경우에는 이보다 현저히 낮은 미세한 전류의 흐름에도 치명적인 위험이 발생할 수 있다.As it is well known, when a current of about 50 mA per second comes into contact with a healthy human body, a serious danger can occur, especially in patients with poor resistance. Can be.

따라서, 수술실이나 응급실 및 중환자실 등 각종 의료기의 사용이 많은 곳에서는 환자는 물론이고 의료인의 안전을 위해서도 해당 의료기별 전류의 누출에 대한 정밀한 측정과 신속한 대처의 중요성은 매우 크다.Therefore, where there are many uses of various medical devices such as an operating room, an emergency room and an intensive care unit, the importance of precise measurement and prompt response to leakage of current for each medical device is very important for the safety of patients as well as medical personnel.

첨부된 도 1은 본 발명의 누설전류 검출과 그 제어장치의 계통도이며, 도 2는 도 1의 구성을 블록도로 도시한 것이다.1 is a schematic diagram of the leakage current detection and its control device of the present invention, Figure 2 is a block diagram showing the configuration of FIG.

도시된 바와 같이 본 발명은 병원 등의 의료시설에 적용됨이 바람직하나 학교, 관청 등 공공건물에도 적용될 수 있을 것이다.As shown, the present invention is preferably applied to medical facilities such as hospitals, but may be applied to public buildings such as schools and government offices.

먼저, 본 발명은 정전상태에서도 안정적으로 전원의 공급의 가능할 수 있도록 UPS무정전전원장치(1)를 이용하여 공급되는 전원이 변압기(transformer)(2)를 통해 필요한 전압으로 정격전압조절된 후 인가된 전원이 분기되어 각 공간의 콘센트(3)에 접속되고, 단층촬영기, 초음파진단기, 심전도기 등 각각 독립된 상태인 의료기(A)의 접지단자(4)가 구비된 전원공급장치의 구성을 전제로 하여, 상기 변압기 (2)의 2차권선측에서 출력되는 교류전원을 각 의료기(A)의 접지단자(4)를 통해 대지접지전위점에 접속시킨 후 UPS전원공급선 모두의 온/오프작동으로 1㎃∼15㎃범위에서의 누설전류감지와 의료기(A)의 안전작동을 위하여 상기 각 콘센트(3) 및 접지단자(4)와 연결접속되어 전원의 양 공급선을 따라 의료기(A)에 유입/유출되는 전류의 양을 첵크하여 미리 설정된 값 이상의 전류가 누출되는지 또는 그 값이 적어도 1㎃∼15㎃범위내에 있는지를 신속하게 고감도로 감지하는 누설전류감지부(5)가 마련된다.First, the present invention is applied to the power supplied using the UPS uninterruptible power supply (1) is regulated to the required voltage through a transformer (2) so that the power can be stably supplied even in a power outage state is applied Assuming that the power supply is branched and connected to the outlet 3 of each space, the power supply device is provided with the ground terminal 4 of the medical device A, each of which is in an independent state such as a tomography machine, an ultrasound diagnosis machine, an electrocardiogram machine, The AC power output from the secondary winding side of the transformer 2 is connected to the earth ground potential point through the ground terminal 4 of each medical device A, and then 1 to- Current flowing into and out of the medical device A along both supply lines of the power supply connected to the respective outlets 3 and ground terminals 4 for the leakage current detection and the safe operation of the medical device A in the range of 15 mA. Preset the value by checking the amount of A leak current detecting section 5 is provided which quickly and sensitively detects whether or not the above current leaks or its value is within the range of at least 1 mA to 15 mA.

상기 누설전류감지부(5)를 통해 누설전류가 감지되고, 이러한 신호를 인가받는 동시에 해당 의료기(A)에 대하여 필요시 전원차단이나 그 밖의 조치가 이루어질수 있도록 전원제어부(6)가 제공되며, 상기 누설전류감지부(5)의 감지결과신호를 인가받아 이를 영상으로 디스플레이하거나 경보음으로 발하여 주는 나인아이솔모니터로 구성된 표시수단(7)이 의료기(A)가 설치된 수술실이나 응급실 등의 적정위치에 설치되며, 이와 같이 위치와 장소를 달리하여 설치된 각 누설전류감지부(5) 및 표시수단(7)과 연결되어 동일한 시각에 동일의 영상과 경보음이 표식되는 복수개의 표시수단(7a)이 별도로 구비되어 전원제어부(6)와 연결된 채 선별적 혹은 일괄적인 전기제어가 가능할 수 있도록 중앙통제실(8)이 구성되므로 전체적인 누설전류 검출과 그 제어장치를 완성하게 된다.A leakage current is detected through the leakage current detection unit 5, and a power control unit 6 is provided so that a power cut or other action can be performed on the medical device A when necessary while receiving such a signal. The display means 7 composed of a nine-isolator monitor which receives the detection result signal of the leakage current detection unit 5 and displays it as an image or emits an alarm sound is placed at an appropriate position such as an operating room or an emergency room in which a medical device A is installed. The plurality of display means 7a, which are connected to each of the leakage current detecting units 5 and the display means 7 installed in different positions and locations as described above, display the same image and the alarm sound at the same time. Since the central control room 8 is configured to allow selective or collective electrical control while being connected to the power control unit 6, the overall leakage current detection and its control device It is sex.

첨부된 도 3은 본 발명 장치의 설치상태를 도시한 실시예도인바, 위 도면을 살펴보면 각 의료기(A)와 표시수단(7)의 설치상태가 도시되어 있는데, 이와 같이 개별화 된 각 콘센트(3)별로 인가되어 누출되는 미세한 전류의 흐름마저도 고감도로 검출하여 환자에 미치는 영향을 최소화하면서 신속한 대응이 가능할 수 있도록 하였다.Figure 3 is an embodiment showing the installation state of the present invention bar, looking at the above figure is shown the installation state of each medical device (A) and the display means (7), as described above, each outlet (3) Even the small flow of minute current applied to each other was detected with high sensitivity to enable rapid response while minimizing the effect on the patient.

따라서, 본 발명은 해당 콘센트별로 1㎃∼15㎃범위내의 누설전류를 고감도 및 고속으로 감지하여 저항력이 약한 환자와 의료인을 보호하면서도 의료기의 안정적인 사용을 보장하는 것으로, 중앙통제실을 이용한 효율적인 전기제어로 관리와 운영상의 경제성 및 효율성을 부여하여 사용자와 관리자 모두의 만족감을 구현하는 유용성을 부여받고 있다.Accordingly, the present invention is to detect the leakage current in the range of 1㎃ to 15㎃ for each outlet at high sensitivity and high speed to ensure the stable use of the medical device while protecting patients with weak resistance and medical personnel, and to provide efficient electrical control using the central control room. It is given the usefulness to realize satisfaction of both users and administrators by granting economic efficiency and efficiency in management and operation.

한편, 본 발명은 그에 관한 최선의 실시예만을 언급하였으나, 굳이 이에 한정되지 않으며 본 발명의 목적범위내에서 청구범위를 벗어나지 않고 실시될 수 있다면 본 발명의 권리범위에 속할 것임은 자명하다.On the other hand, the present invention has been referred to only the best embodiments thereof, but it is obviously not limited to this, it will be obvious that it can be carried out without departing from the scope of the claims within the scope of the present invention.

Claims (1)

UPS무정전전원장치로 인가된 전원이 분기되어 각 콘센트에 접속되고, 독립된 각 의료기기의 접지단자가 구비된 의료시설물 전원공급장치에 있어서,In the medical facility power supply having a power supply applied to the UPS uninterruptible power supply is branched and connected to each outlet, and equipped with a ground terminal of each independent medical device, 변압기의 2차권선측에서 출력된 교류전원이 각 의료기의 접지단자를 통해 접지전위점에 접속된 후 UPS전원공급선 모두의 온/오프작동으로 누설전류감지와 의료기의 안전작동을 위해 상기 각 콘센트 및 접지단자와 연결접속되어 전원의 양 공급선을 따라 의료기의 입출력된 전류의 양을 1㎃∼15㎃범위에서 고도감지하는 누설전류감지부; 전원제어부; 상기 누설전류감지부의 감지결과를 인가받아 이를 영상과 경보음으로 발하여 주는 표시수단; 및The AC power output from the secondary winding side of the transformer is connected to the ground potential point through the ground terminal of each medical device, and then the above outlets are used for detecting the leakage current and for the safe operation of the medical device by turning on / off operation of all UPS power supply lines. A leakage current detection unit connected to a ground terminal and detecting a high amount of input / output current of the medical device along a supply line of power in a range of 1 ㎃ to 15 ㎃; A power control unit; Display means for receiving the detection result of the leakage current detection unit and emitting the result as an image and an alarm sound; And 위치와 장소를 달리하는 각 누설전류감지부와 표시수단과 연결되어 동일의 영상과 경보음이 표식되어 전원제어부와 연결되는 중앙통제실이 제공됨을 특징으로 하는 의료사고방지를 위한 의료기기용 누설전류 검출 및 그 제어장치.Leakage current detection and medical device for medical accident prevention, characterized in that the central control room connected to the power control unit is provided by the same image and alarm sound is connected to each leakage current detection unit and display means of different positions and locations, The controller.
KR1020030042084A 2003-06-26 2003-06-26 Control device for an electric leakage of medical facilities KR20050001030A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101311244B1 (en) * 2011-12-30 2013-09-25 윤영민 Controlling device for an electric leakage of medical facilities
IT201800005591A1 (en) * 2018-05-22 2019-11-22 System for monitoring electromedical equipment installed at home.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101311244B1 (en) * 2011-12-30 2013-09-25 윤영민 Controlling device for an electric leakage of medical facilities
IT201800005591A1 (en) * 2018-05-22 2019-11-22 System for monitoring electromedical equipment installed at home.
WO2019224732A1 (en) * 2018-05-22 2019-11-28 Universita' Degli Studi Di Siena System for monitoring electro-medical apparatuses installed in the home

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