KR20180125304A - Medical gas monitoring system - Google Patents

Abstract

The present invention relates to a medical gas monitoring system, and according to the present invention, it is possible to prevent occurrence of non-detection state in the monitoring of the medical gas supply, thereby preventing the supply of the medical gas from being disconnected in advance.

Description

{Medical gas monitoring system}

TECHNICAL FIELD [0001] The present invention relates to a medical gas monitoring system, and more particularly, to a medical gas monitoring system capable of promptly responding to a shortage of medical gas used for treatment or surgery or an equipment failure.

The hospital is equipped with a gas supply system to supply necessary gases for treatment or surgery, such as oxygen gas (O ₂ ), anesthetic gas (N ₂ O), nitrogen gas (N ₂ ), air. These gases are directly linked to the life of the patient, so supply should not be stopped due to lack of remaining capacity or equipment failure. Therefore, in addition to the medical gas supply system, a surveillance system for monitoring the gas supply system to prevent interruption of gas supply must be installed in parallel.

BACKGROUND ART [0002] Conventional technologies for monitoring the supply of a medical gas so as not to interrupt the supply of gas include an open / close monitoring device provided in a gas transfer path.

However, the conventional open / close monitoring device can monitor the operation state of the shut-off valve installed in the transfer pipe of the medical gas, but can not monitor the insufficient remaining gas amount in the medical gas supply source, I can not. That is, it can cope with the abnormal operation of the shut-off valve, but it can not cope with a shortage of the remaining amount of the medical gas to be supplied or disconnection of the gas due to abnormal operation of the medical gas supply equipment.

Disclosure of Invention Technical Problem [8] The present invention has been made in order to solve the problems of the prior art as described above, and it is an object of the present invention to prevent the occurrence of non- And to provide a medical gas monitoring system using the same.

In order to achieve the above object, the medical gas monitoring system according to the present invention monitors the gas supply pressure of the medical gas in the medical gas supply means for supplying the medical gas, which is a gas used for medical treatment, A pressure detecting means for detecting a gas sending pressure of the medical gas delivered from the medical gas supplying means; a memory means for storing predetermined information; a memory means for storing predetermined information relating to the gas sending pressure of the medical gas; Judges whether or not the value detected by the pressure detecting means is equal to or smaller than a predetermined value and outputs a result of the determination; A first monitoring control means for outputting a monitoring control signal in response to an output from the first monitoring control means, An input means for inputting an operation instruction signal for operating the first display means and the first monitor control means for displaying predetermined information stored in the storage means in response to the monitored surveillance control signal, In response to the supervisory control signal outputted from the second supervisory control means and the second supervisory control means for outputting the supervisory control signal in response to the output of the judgment result by the judging means, A second display means for indicating that the air supply pressure of the medical gas is equal to or less than a predetermined value, an originating means provided in the first monitor control means for transmitting an operation detection signal indicating that the first monitor control means is in operation, And reception means provided in the control means for receiving the operation detection signal transmitted from the transmission means.

Since the medical gas supply system according to the present invention is provided with the two monitoring control means, namely the first monitoring control means and the second monitoring control means, it is possible to monitor the medical gas supply by using both. As a result, even if one of the first and second monitoring and control means causes an operation abnormality, monitoring of the supply of the medical gas can be continued by the remaining side, so that occurrence of an abnormal situation can be grasped, Can be avoided.

In addition, only two of the first monitoring control means and the second monitoring control means provided in the medical gas monitoring system are normally used for monitoring the medical gas supply, and only when the first monitoring control means causes an operation abnormality, The second monitoring control means can be used for monitoring the medical gas supply as a substitute for the first monitoring control means by the switching operation by the switching means. As a result, when the monitoring of the medical gas supply by the first monitoring control means is impossible, the second monitoring control means can monitor the supply of the medical gas, so that the occurrence of the abnormal situation can be grasped, Supply interruption can be avoided.

Further, according to the present invention, since the predetermined information displayed on the first display means includes at least the information on the coping method determined in advance so as to correspond to the first supervisory control signal, the user can solve the abnormal situation Can be easily taken.

According to the present invention, the predetermined information stored in the storage means can be updated by inputting information in the input means. As a result, the user can prepare information in accordance with a situation occurring in the user's own use environment in advance as predetermined information, and it becomes possible to quickly and accurately grasp an abnormal situation or the like based on the information. Therefore, the user can reliably avoid the supply of the medical gas from being disconnected from the first layer.

Further, according to the present invention, since the touch panel is provided on the first display unit as the input means, for example, it is possible to operate the first monitoring control means in an interactive manner, and the convenience of the user can be improved.

1 is a view for explaining a medical gas monitoring system according to an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, some configurations which are not related to the gist of the present invention may be omitted or compressed, but the configurations omitted are not necessarily those not necessary in the present invention, and they may be combined by a person having ordinary skill in the art to which the present invention belongs. .

1 is a view for explaining a medical gas monitoring system according to an embodiment of the present invention. The medical gas monitoring system 61 (hereinafter abbreviated as "monitoring system") is installed in a medical gas supply system 20 for supplying medical gases such as O ₂ gas, N ₂ gas, and air for treatment, And monitors the supply state of the medical gas.

Medical gas supply system 20 includes two first and second liquid containing a liquid O ₂ in the stationary liquid O ₂ tank 21 and the portable type container for containing a liquid O ₂ to the stationary container a medical gas source O ₂ vessels 22 and 23, two first and second N ₂ gas vessels 24 and 25 for containing N ₂ gas, a compressor 26 for pressurizing and supplying air, And a suction pump 27 for suction. The medical gas supply source provided in the medical gas supply system 20 shown in FIG. 1 is an example of the configuration. In addition, O ₂ and N ₂ are mixed instead of the anesthetic (N ₂ O) gas and the compressor 26, For example, as a medical gas supply source.

Stationary liquid O ₂ tank 21, the first and second liquid O ₂ containers 22, 23, first and second N ₂ gas containers 24 and 25, the compressor 26 and the suction pump 27 Are medical gas supply means.

The gas outlets of the first and second liquid O ₂ vessels 22 and 23 are connected to the first automatic switch 30 by the first and second connecting lines 28 and 29, respectively. The first automatic switcher 30 automatically switches over to supply O ₂ gas from either the first liquid O ₂ container 22 or the second liquid O ₂ container 23. The first automatic switcher 30 is operated. The switching of the O ₂ gas supply is performed as follows.

A first automatic switcher 30 is provided with a first substrate 31 (referred to herein as a control substrate for convenience) having a processing circuit and a memory and a first liquid O ₂ container A mass detection signal from a first mass sensor 32 as a mass detecting means for detecting the mass of the first liquid O ₂ container 22 and a second mass sensor 33 as a mass detecting means for detecting the mass of the second liquid O ₂ container 23, Is input. The first control substrate 31 is a predetermined value relating to the mass and mass of the first liquid O ₂ container 22 being supplied with the O ₂ gas detected by the first mass sensor 32, The difference from the threshold value stored in the substrate 31 is calculated and it is determined whether the mass of the first liquid ₀₂ container 22 is equal to or less than the threshold value. Therefore, the first control substrate 31 is a determination means of the medical gas supply means.

The first control board 31 outputs to the first and second monitor control means 63 and 67 a determination result that the mass of the first liquid ₀₂ container 22 is equal to or less than the threshold value, (Not shown) provided in the automatic switcher 30 to supply the O ₂ gas from the first liquid O ₂ container 22 to the second liquid O ₂ container 23 Switch.

The first automatic switcher 30 sends the O ₂ gas to the first supply pipe 46 in such a manner that the supply of the O ₂ gas is not interrupted. In addition, the first liquid O ₂ container 22 in which the amount of remaining liquid O ₂ is reduced is replaced with a new container filled with the liquid O ₂ . When the mass of the second liquid O ₂ tank 23 decreases to below the threshold is switched to a first automatic diverter 30 first liquid O ₂ container 22 to the exchange supply means of the O ₂ gas by.

The gas outlets of the first and second N ₂ gas vessels 24 and 25 are connected to the second automatic switcher 36 by the third and fourth connecting pipes 34 and 35, respectively. The second automatic switcher 36 automatically switches the supply of N ₂ gas to either the first N ₂ gas container 24 or the second N ₂ gas container 25. Is switched by the second automatic switcher (36). The switching of the N ₂ gas supply is performed by the first automatic switcher 30 described above. O ₂ gas supply.

It should be noted that in the switching of the N ₂ gas supply, the second control substrate 37 provided in the second automatic switcher 36 is provided in the pipeline of the third connection pipe 34 and supplied from the first N ₂ gas container 24 The pressure of the N ₂ gas supplied from the second N ₂ gas container 25 to the first pressure sensor 38 and the fourth connection pipe 35, which are the pressure detecting means for detecting the gas supply pressure of the N ₂ gas, And a detection output from the second pressure sensor 39, which is a pressure detecting means for detecting the gas sending pressure, is given. The second control board 37 is a judging means for judging whether or not the gas sending pressure is equal to or less than a threshold value by calculating a difference between the detected gas sending pressure and a threshold value relating to a predetermined pressure value related to the gas sending pressure.

The second control board 37 outputs to the first and second monitoring and control means 63 and 67 a determination result of whether or not the sending pressure of the N ₂ gas containers 24 and 25 is equal to or lower than the threshold value, (Not shown) provided in the second automatic switcher 36 so that the second automatic switcher 36 can supply the second supply pipe 47 without disconnecting the supply of the N ₂ gas, .

The air pressurized by the compressor (26) is sent to the third supply pipe (48). The third control board 40 is also provided in the compressor 26 so that a signal indicating whether power for operating the compressor 26 is supplied by the third control board 40, do. As the predetermined information related to the operation abnormality, an off signal of energization of the operation current is stored in the third control substrate 40, and it is determined by the third control substrate 40 whether the energization state of the operation current coincides with the off signal .

Therefore, in the compressor 26, the third control board 40 constitutes a determination means as an operation abnormality detecting means. Needless to say, the time of the disconnected off signal of the energization is treated as an abnormality. The output of the determination result by the third control board 40, which is the determination means, is given to the first and second monitoring control means 63 and 67 described later.

A pressure sensor (not shown) is provided in the compressor 26, and a detection output of the air supply pressure by the pressure sensor is inputted to the third control board 40, (63) to the first display means (64), and the air sending pressure value and the pressure abnormality are displayed.

Since the suction pump 27 is used by being connected to a suction device for suctioning a patient's bed or the like, the suction pump 27 is not used to supply air but, conversely, sucks air to create a low-pressure state, but is defined as medical gas supply means . The suction of the air by the suction pump 27 is carried out through the fourth supply pipe 49 (though not air is fed but suctioned, but is referred to as a supply pipe for convenience). The fourth control board 41 is also provided in the suction pump 27 so that a signal indicating whether electric power for operating the suction pump 27 is supplied by the fourth control board 41, Is detected. As the predetermined information related to the operation abnormality, the OFF signal of the energization of the operation current is stored in the fourth control substrate 41, and it is determined by the fourth control substrate 41 whether the energization state of the operation current coincides with the OFF signal .

Therefore, in the suction pump 27, the fourth control board 41 constitutes a judgment means as an operation abnormality detecting means. The output of the determination result by the fourth control board 41, which is this determination means, is given to the first and second monitoring control means 63 and 67 described later.

A pressure sensor (not shown) is also provided in the suction pump 27 so that the detection output of the suction pressure of the air by the pressure sensor is inputted to the fourth control board 41 and the first monitoring control Is sent to the first display means (64) via the means (63), and the suction pressure value and the pressure abnormality are displayed.

O ₂ gas from the stationary liquid O ₂ tank 21 is sent to the fifth supply pipe 50. The stationary liquid O ₂ tank 21, a fifth control board 42 is installed level by detecting the fifth control board 42, the stationary liquid O ₂ tank 21, the liquid surface height of the liquid O ₂ The residual amount detection signal from the liquid level detecting sensor 43 which is the remaining amount detecting means for detecting is input. Fifth control board 42 is pre-value determined and the fifth difference of the threshold value of the liquid level height which is stored in the control board 42, operation process, stationary liquid O ₂ tank associated with the remaining amount of the liquid O ₂ ( 21), that is, whether the remaining amount is equal to or less than the threshold value. Therefore, the fifth control board 42 is a determination means. The fifth control board 42 outputs to the first and second monitoring control means 63 and 67 a result of the determination that the remaining amount of the stationary liquid O ₂ tank 21 is equal to or less than the threshold value.

The first to fifth control boards 31, 37, 40, 41, and 42 as the determination means are electrically connected by the so-called two-legged wiring 44 and are electrically connected to the fifth control board 42 and the monitoring system 61 1 and the second monitoring control means 63, 67 are electrically connected. The output of the determination results by the first to fifth control substrates 31, 37, 40, 41, and 42 is input to the first and second monitoring control means 63 and 67 of the monitoring system 61 .

In addition, when the above-mentioned threshold value relating to the mass of the liquid O ₂ and the threshold value relating to the gas sending pressure of the N ₂ gas fall below the above-mentioned threshold value, the supply of the O ₂ gas and the N ₂ gas will be obstructed. As the index for performing the replenishment work.

O ₂ gas, N ₂ gas, and air are supplied to the use unit through the first to fifth supply pipes 46, 47, 48, 49, and 50 (the sucking of the air is shown as supply for convenience). More specifically, the first to fifth supply pipes 46, 47, 48, 49, and 50 are respectively provided with supply pipe tubes 46a, 47a, 48a, 49a, 50a, 25 supply branch pipes 46b, 47b, 48b, 49b and 50b are provided, and the above-mentioned medical gas is supplied to the first or second floor of the hospital building 51 or the like .

The shutoff valve 52 and the terminal pressure sensor (not shown) are connected to the 11th to 15th supply branch pipes 46a, 47a, 48a, 49a and 50a and the 21st to 25th supply branch pipes 46b, 47b, 48b, 49b and 50b, Respectively. The shutoff valve 52 is provided with an opening / closing detector, and the opening / closing state of the shutoff valve 52 detected by the shutoff detector is referred to as a detection output of the shutoff valve 52 for convenience. The detection output of the shutoff valve 52 provided in each channel is input to the sixth and seventh control substrates 56 and 57 and the detection output of the terminal pressure sensor 53 is inputted to the eighth and ninth control substrates 58 and 58. [ 59, respectively. The upper and lower limit values of the appropriate pressure range for use of the medical gas at the distal end are preliminarily stored as threshold values in the eighth and ninth control substrates 58 and 59 and the eighth and ninth control substrates 58 and 59 are used as terminal pressure sensors 53) is within an appropriate range, and outputs the determination result. In this embodiment, both the shutoff valve 52 and the terminal pressure sensor 53 are provided. However, the present invention is not limited to this, and only one of the shutoff valve 52 and the terminal pressure sensor 53 is provided .

The sixth to ninth control boards 56, 57, 58 and 59 are electrically connected to each other by the cross wiring 60 and the eighth control board 58 is connected to the first and second monitor control means 63 and 67 And is electrically connected. The detection output of the shutoff valve 52 is given to the first and second monitoring control means 63 and 67 by the sixth and seventh control substrates 56 and 57 so that the detection value of the terminal pressure sensor 53 And the determination result of whether or not the detection value is within the appropriate range are given to the first and second monitoring control means 63 and 67 by the eighth and ninth control substrates 58 and 59. [

The end of each supply branch pipe disposed in the hospital building 51 is connected to a medical gas pipeline connection terminal provided in, for example, a storage unit, and a terminal of a gas supply pipe of a medical instrument such as an artificial respirator is connected to the pipeline connection terminal , Medical gas supplied from the medical gas supply means is used.

The monitoring system 61 is a system attached to the medical gas supply system 20 as described above. The monitoring system 61 is configured to include the following. First, the first and second liquid O ₂ containers 22 and 23 and the stationary liquid O ₂ tank 21, which are included in the above-described medical gas supply system 20 and constitute the monitoring system 61, The first and second mass sensors 32 and 33 and the liquid level detection sensor 43 that detect the mass and the remaining amount of the liquid O ₂ stored in the first and second N ₂ gas containers 24 and 25 first and second pressure sensors (38,39) and the first detection output of the sensor is input, the second and fifth control board (31,37,42) and the compressor for detecting a gas sending pressure of the N ₂ gas ( Third and fourth control substrates 40 and 41 and an operation abnormality detecting means for detecting an operation abnormality of the suction pump 27 and the first to fifth control substrates 31, 37, 40, 41, A wire connecting the wiring 44 to the fifth control board 42 and the first and second monitoring control means 63 and 67 is sufficient.

In addition to these, the surveillance system 61 generally includes a storage means 62, a first monitoring control means 63, a first display means 64, an input means 65, a second monitoring control means 67, 2 display means 68 as shown in Fig.

The first monitoring control means 63 is realized by a computer on which the CPU is mounted. For example, a HDD installed in a computer is suitably used as the storage means 62. [ The storage means 62 stores a predetermined value corresponding to the case where the mass detection result of the liquid O ₂ and the gas supply pressure detection result of the N ₂ gas are equal to or less than the threshold value and the case where the compressor 26 and the suction pump 27 are in the abnormal operation state Information is stored.

The predetermined information to be determined in advance is set to include, for example, 'above content', 'coping method', 'vendor telephone number' and at least a 'coping method'. More specifically, the 'above content' means, for example, 'a reduction in the amount of liquid O ₂ remaining', and the 'countermeasure method' is a 'replacement or supplement instruction to a supplier' It is the contact to the supplier to give.

The monitoring system 61 of the present embodiment is characterized in that such predetermined information can be updated. The predetermined information set and assumed by the manufacturer of the surveillance system 61 may not be able to accurately represent an anomalous situation occurring in the user's own use environment or method of use, so that predetermined information can be updated. A folder associated with predetermined information stored in the storage means 62 can be read by the input means 65 to be described later and the information can be updated to the contents desired by the user. Here, it means both updating contents and adding contents.

As the first display means 64, for example, a liquid crystal display (abbreviated as LCD) is used. The input means 65 for inputting the operation instruction signal for operating the first monitoring control means 63 to the first monitoring control means 63 is the same as that of the touch panel provided on the LCD 64 ). By using the input means 65 as the touch panel 65, the operation instruction signal can be input to the first monitoring means 63 in an interactive manner via an intelligent terminal (not shown), and various kinds of information can be input . In this case, only the LCD 64 is used as an input means, but a keyboard, a mouse, and the like may be used in addition to these, and these input means may be used in combination.

The first monitoring control means 63 determines that the determination result from one of the first, second, and fifth control substrates 31, 37, and 42 is that the N ₂ gas delivery pressure or the mass or remaining amount of the liquid O ₂ is equal to or less than the threshold value And outputs the first supervisory control signal. The first monitoring means 63 outputs the first monitoring control signal when the judgment result of the third or fourth control substrate 40 or 41 indicates that the operation of the compressor 26 or the suction pump 27 is abnormal do.

The first monitoring control signal displays image and character information indicating that the N ₂ gas sending-out pressure or the liquid O ₂ mass or the remaining amount is equal to or less than the threshold value, the operation of the compressor 26 or the suction pump 27 is abnormal, And is a signal instructing to display predetermined information corresponding to these in advance on the LCD 64, for example.

The shutoff valve 52 and the terminal pressure sensor 52 installed in the 11th to 15th supply branch pipes 46a, 47a, 48a, 49a and 50a and the 21st to 25th supply branch pipes 46b, 47b, 48b, 49b and 50b, The detection outputs of the first to third control boards 53, 56, 57, 58, 59 are input to the LCD 64 via the first monitoring control means 63. On the basis of the output signals from the sixth to ninth control substrates 56, 57, 58, and 59, the LCD 64 displays the opening / closing state of the shutoff valve 52 provided in each branch tube, Is displayed.

In addition, storage means 62, the first and second mass sensor value detected by mass of the liquid O ₂ contained in the first and second O ₂ liquid container (22, 23) by 32,33 and the liquid level detection sensor ( 43 of the first and second N ₂ gas cylinders 24, 24 by the first and second pressure sensors 38, 39, and the detection value of the liquid O ₂ contained in the stationary liquid O ₂ tank 21 by the first and second pressure sensors 38, 25) N ₂ gas detected air supply pressure value and the third and fourth control board (40,41), the compressor 26 and the suction pump 27 of the on / off operation according to the state transmitted from the third and fourth The air supply pressure value and the suction pressure value of the compressor 26 and the suction pump 27 by the control boards 40 and 41 are stored as time elapses. Therefore, the user operates the first monitoring control means 63 by inputting the operation instruction signal from the touch panel 65, and detects the detected mass value, the detected remaining amount value, the detected sending and receiving pressure values, It is also possible to display the trend of the operation state and the supply pressure value of the supply branch pipe, that is, the trend on the LCD 64.

The second monitoring control means 67 is implemented by, for example, a one-chip microcomputer. The second display means 68 includes first and second liquid O ₂ containers 22 and 23 which are medical gas supply means and first and second N ₂ gas containers 24 and 25 and a compressor 26, The first to fifth warning lamps 71, 72, 73, 74, and 75, which are respectively provided to the stationary liquid O ₂ tank 27 and the stationary liquid O ₂ tank 21, and the shutoff valve 52 and the terminal pressure sensor 53 And the first and second alarm buzzer 76a and 76b, which are installed corresponding to the first to ninth warning lights 126, 127, 128 and 129, respectively.

The second monitoring control means 67 determines whether or not the determination result output from the first and second control substrates 31 and 37 and the fifth control substrate 42 indicates the air supply pressure of N ₂ gas or the mass or remaining amount of the liquid O ₂ And outputs a second supervisory control signal when it is less than the threshold value. When the judgment result outputted from the third and fourth control boards 40 and 41 indicates that the operation of the compressor 26 or the suction pump 27 is abnormal, the second supervisory control means 67 performs the second supervisory control And outputs a signal.

The second monitoring control signal is a signal indicating that the N ₂ gas sending-out pressure or the mass or the remaining amount of the liquid O ₂ is equal to or less than the threshold value to the second display means 68 and that the operation of the compressor 26 or the suction pump 27 is abnormal , An alarm or the like corresponding to the abnormal medical gas supply means is turned on or blinked, and the alarm buzzer 76 is sounded.

The remaining amount of the stationary liquid O ₂ tank 21 is input to the first monitoring control means 63 through the fifth control board 42 as a detection output by the liquid level detecting sensor 43. In this case, the residual amount detection output is also input to the second monitoring control means 67. [ The first monitoring control means 63 outputs the first monitoring control signal to the LCD 64 in response to the remaining amount detection output and outputs the residual amount detection result of the stationary liquid O ₂ tank 21 to the liquid O ₂ tank panel display section 81 Liquid O ₂ tank remaining amount display unit 82. The display of the liquid O ₂ tank remaining amount display portion 82 changes the height of the high luminance portion according to the detection output value of the remaining amount. When the remaining amount is large, the height of the high luminance portion is high and when the remaining amount is small, the height of the high luminance portion is displayed low.

Stationary first monitoring and control means 63 will compensate for the liquid in the stationary liquid O ₂ tank (21) when the detected output value of the liquid O ₂ remaining amount received in the liquid O ₂ tank 21 is the threshold value or less that is determined in advance And outputs to the LCD 64 a first monitoring control signal of a display operation instruction for facilitating switching of the supply of the O ₂ gas to the spare first or second liquid O ₂ containers 22 and 23. [ In response to the first supervisory control signal, the supplemental lamp unit 83 of the liquid O ₂ tank panel display unit 81 and the spare lamp switching unit 84 are turned to high brightness Quot;).

At this time, the 'supplement' portion 101 of the LCD 64 also becomes a blinking state, and the stationary liquid O ₂ display panel portion 99 also flickers. In addition, the 'replenishing' unit 101 and the stationary liquid O ₂ display panel unit 99 may be configured to be lit and displayed. The operator touches the touch panel 65 of the 'supplementing' unit 101 to convert the display of the LCD 64 into a predetermined information display screen (not shown). The operator can instruct the supplier to replenish the liquid O ₂ in accordance with the display information of the predetermined information display screen. When the liquid O ₂ is replenished to the stationary liquid O ₂ tank 21, the first monitor control unit 63 controls the first monitor control unit 63 to monitor the high-luminance portion of the liquid O ₂ tank mass display unit 82 The replacement lamp unit 83 and the spare lamp switching unit 84 are turned off.

When the first monitoring control means 63 and the second monitoring control means 67 are used in combination as in the present embodiment, the amount of liquid O ₂ remaining in the stationary liquid O ₂ tank 21 When the detected output value becomes equal to or lower than a predetermined threshold value, the second monitoring control means 67 controls the second monitoring control means 67 to detect the output of the stationary liquid O ₂ tank Which is an operation instruction signal for turning on the fifth alarm light 75 corresponding to the first alarm buzzer 21 and making the first alarm buzzer 76a sound, to the second display means 68, .

The buzzer of the first alarm buzzer 76a is stopped by depressing an alarm confirmation switch (not shown) provided on the other side of the second monitor control means 67 in a state in which the first alarm buzzer 76a is ringing, The alarm buzzer 76b can be made to sound. When the liquid O ₂ is replenished to the stationary liquid O ₂ tank 21, the second monitoring control means 67 outputs the second monitoring control signal outputted to the fifth alarm light 75 and the second alarm buzzer 76b The fifth warning light 75 is turned off and the second alarm buzzer 76b stops ringing.

When the sound of the first alarm buzzer 76a is stopped and the second alarm buzzer 76b is ringing, a state or operation requiring supplement to the medical gas supply means other than the stationary liquid O ₂ tank 21 If an abnormality occurs, the first alarm buzzer 76a is turned off again according to the first monitoring control signal.

In the medical gas supply system 20 of the present embodiment, the stationary liquid O ₂ tank 21 is used as a main supply source of O ₂ gas, so that the first and second liquid O ₂ containers 22 and 23 serve as a preliminary supply source . Thus, the first and second liquid O ₂ vessels 22 and 23 are preliminary sources on one side and preliminary sources on the other side.

The masses of the first and second liquid O ₂ containers 22 and 23 are detected by the first and second mass sensors 32 and 33 and the detection results are output from the first control board 31, And is input to the LCD 64 through the control means 63. Thus, the mass detection results of the first and second liquid O ₂ containers 22 and 23 are displayed on the liquid O ₂ container mass display portion 86 of the liquid O ₂ container panel display portion 85. The liquid O ₂ vessel mass display portion 86 corresponds to the first and second liquid O ₂ vessels 22 and 23 and two of the first and second liquid O ₂ vessel mass display portions 86a and 86b are respectively installed .

And if the first and second O ₂ liquid container (22, 23) is the mass of the liquid O ₂ to be high-brightness display in the liquid container ₂ O weight display section 86, stationary liquid O ₂ tank 21 which is received in the same. For example, the first output of the first monitoring and control means 63 comprises a first monitoring control signal when the liquid O ₂ liquid O ₂ accommodated in the container 22 by weight is the threshold value or less that is determined in advance by LCD64, and the 1, the replenishment lamp unit 87a corresponding to the liquid O ₂ container 22 is turned on. 2 thereby to light the replacement lamp unit (87b) corresponding to the liquid O ₂ tank (23) a second liquid O ₂ tank 23 to, as when the weight of the liquid O ₂ is the threshold value or less that is determined in advance that is accommodated in .

Since, as monitoring of the stationary liquid O ₂ tank 21, by the operator to touch the touch panel 65 of the "replacement" portion 101 of the LCD64 display the predetermined information display screen, the operator displays predetermined information According to the display information on the screen, it is possible to instruct the supplier to exchange the liquid O ₂ container. In addition, during the container exchange, the supply of the O ₂ gas is converted by the automatic switcher 30 to the other one of the filling containers as described above. The height of the high-luminance portion of the liquid O ₂ container mass display portion 86 becomes higher according to the output from the first control board 31 when the mass of the liquid O ₂ container is exchanged with the new filling container, 87b are turned off.

When the mass detection value of the first or second liquid O ₂ container 22 or 23 becomes equal to or lower than a predetermined threshold value, the second monitoring control means 67 is started, similarly to the monitoring of the stationary liquid O ₂ tank 21, The first warning light 71 and the first warning buzzer 76a corresponding to the first or second liquid O ₂ container 22 or 23 are turned on and off. It is the same as in the case of the stationary liquid O ₂ tank 21 that the sound is switched to the second alarm buzzer 76b by the operation of the alarm confirmation switch.

The sending pressure of the first and second N ₂ gas containers 24 and 25 is detected by the first and second pressure sensors 38 and 39 and the detection result is outputted from the second control board 37, And is input to the LCD 64 via the monitor control means 63. The air supply pressure detected by the first and second pressure sensors 38 and 39 is converted into the remaining amount of the N ₂ gas in the container and the N ₂ container remaining amount display portions 89a and 89b of the N ₂ container panel display portion 88 ). The N ₂ container panel display portion 88 corresponds to the first and second N ₂ gas containers 24 and 25, and the supplemental lamp portions 90a and 90b are respectively installed.

The display operation of the LCD 64 and the N ₂ container panel display section 88 by the first monitoring control means 63 relating to the first and second N ₂ vessels 24 and 25 is the same as the display operation of the first And the second liquid O ₂ container (22, 23), the description of the operation will be omitted. The display operation of the second warning light 72 and the alarm buzzer 76a and 76b by the second monitoring control means 67 is also the same as that in the case of the first and second liquid O ₂ containers 22 and 23.

The on / off signal of the operation power supply of the compressor 26 and the judgment result of the abnormal operation of the compressor 26 are input to the first monitoring control means 63 on the third control board 40. The first monitoring control means 63 outputs a first monitoring control signal to the LCD 64 when it is determined that the compressor 26 is in an abnormal operation state to indicate to the air panel display 91 that the compressor 26 is in the abnormal operation state, . The abnormality lamp section 92 is turned on when the operation of the compressor 26 is abnormal and the operation of the compressor 26 is off.

When the abnormal lamp section 92 is in the lighting state, the 'abnormal' section 102 of the LCD 64 also flickers. In addition, the 'abnormal' part 102 may be configured to be lit up. The operator touches the touch panel 65 of the 'ERROR' section 102 so that the display of the LCD 64 is converted into a predetermined information display screen corresponding to the operation abnormality of the compressor 26. The operator can instruct the facility management contractor of the compressor 26 to repair according to the display information of the predetermined information display screen. When the compressor 26 is repaired and the operation power supply to the compressor 26 is turned on, that is, when the judgment result of the third control board 40 is no abnormal, the first monitoring control means 63 judges that the LCD 26 The abnormal lamp section 92 of the air panel display section 91 is turned off according to the first monitoring control signal outputted to the air conditioner. The display operation of the third alarm light 73 and the alarm buzzer 76a and 76b by the second monitoring control means 67 when an operation error occurs in the compressor 26 is also performed by the O ₂ gas supply and the N ₂ gas supply .

The air supply pressure of the air detected by the pressure sensor provided on the compressor 26 is inputted to the third control board 40 and the first monitoring control means 63 is provided on the third control board 40. [ And the numerical value can be displayed by the air pressure display section 93. [

The on / off signal of the operation power supply of the suction pump 27 and the result of the judgment that the operation is abnormal is inputted to the first monitoring control means 63 on the fourth control board 41. The first monitoring control means 63 outputs the first monitoring control signal to the LCD 64 when it is determined that the suction pump 27 is in an abnormal operation state and the fact that the suction pump 27 is in the abnormal operation state is displayed on the suction panel display portion 94). The display of the suction panel display unit 94 is turned on when the operation of the suction pump 27 is abnormal and the operation is abnormal.

When the operator touches the touch panel 65 of the 'abnormal' part 102 of the LCD 64 when the abnormal lamp part 95 is in the lighting state, the display of the LCD 64 is converted into the predetermined information display screen corresponding to the operation abnormality, It is the same as in the case of the above-described compressor 26 that can cope with information. The display operation of the fourth alarm light 74 and the alarm buzzer 76a and 76b by the second monitoring control means 67 when the operation abnormality occurs in the suction pump 27 is also the same as that in the case of the compressor 26 .

The suction pressure of the air detected by the pressure sensor provided on the suction pump 27 is inputted to the fourth control board 41 and the first monitoring control means 63 is provided on the fourth control board 41 And the suction pressure is displayed numerically by the suction pressure display unit 96 (the numerical value is negative because it is sucked).

In this embodiment, four operation pumps are provided so as to be monitorable and controllable, and four operation lamp sections 97 and failure lamp sections 98 are provided corresponding to the suction pump. For example, when four suction pumps are operated, the on / off signals of the cooperative power supply of the respective units are input to the LCD 64 through the first supervisory control unit 63 on the control board provided in each unit, It is displayed on both the operation lamp unit 97 and the fault lamp unit 98 installed so that the abnormality occurred in the call due to the lighting of the fault lamp unit 98 and the abnormal lamp unit 95, Can be detected.

In addition, the operator touches the touch panel 65 of the 'zone pressure' portion 103 of the LCD 64 so that the display of the LCD 64 is displayed for each zone of the hospital building 51, It is possible to convert them into the air-ventilating pressure display screen 111, which is divided into each of the rooms and the like. For example, the 'local station 1-6' display unit 112 on the air supply pressure display screen 111 is a display corresponding to one division as described above.

The detection outputs of the terminal pressure sensors 53 provided at the respective supply branch pipes are inputted to the eighth and ninth control substrates 58 and 59 and the information of each pipe at the eighth and ninth control substrates 58 and 59 The first monitoring control means 63 of the monitoring system 61 is input to the LCD 64. The eighth and ninth control substrates 58 and 59 output the comparison result between the detection output of the air supply pressure by the terminal pressure sensor 53 and the predetermined threshold value to the LCD 64, (111). In addition, the threshold value predetermined in advance for the medical gas flowing through the supply branch tube is a threshold value set as the upper and lower limits of the gas supply pressure of the medical gas supplied to the distal end as described above, and these threshold values are also set in advance in the eighth and ninth control And can be stored in the substrates 58 and 59.

For example, O ₂ gas detected by the terminal pressure sensor 53 is displayed on the O ₂ gas terminal pressure display unit 113 of the "local station 1-6" display unit 112. The O ₂ gas terminal pressure display section 113 includes a pressure indicating bar section 114 and first and second warning lamp sections 115a and 115b. The pressure indicating bar portion 114 is displayed so that the length extending from left to right toward the screen of the high luminance portion becomes longer as the detected value of the sending pressure becomes higher. When the detected value of the gas sending pressure is below the lower limit value, the first warning lamp part 115a flickers. On the contrary, when the detected value of the gas sending pressure becomes the upper limit value or more, the second warning lamp part 115b flickers, The unit 120 is blinking. In addition, the first and second warning lamp units 115a and 115b and the pressure display panel unit 120 may be configured to be lighted. When the operator touches the touch panel 65 of the 'abnormal' portion 102 of the LCD 64 when the warning lamps 115a and 115b are blinking, the display of the LCD 64 is displayed on the predetermined information display screen . The operator can cope with the display information of the predetermined information display screen. The construction of such a display is the same for N ₂ gas, air, and suction, which are medical gases other than O ₂ gas, so that the description thereof will be omitted.

The valve indicator 119 on the right side of the second warning lamp unit 115b toward the screen is connected to the shutoff valve 52 of the O ₂ gas supply branch pipe when the terminal pressure sensor 53 and the shutoff valve 52 are juxtaposed. Can be displayed together with the air supply pressure display screen 111. [ The display condition of the valve display unit 119 is the same as that in the case of the shutoff valve display screen 121 to be described later, the shutoff valve 52 is flickered in a closed state, and is turned off in an opened state. It is also possible to erase the valve display part 119 from the air supply pressure display screen 111 when only the terminal pressure sensor 53 is provided in the supply branch pipe and the shutoff valve 52 is not provided.

Further, the operator touches the touch panel 65 of the 'trend' unit 116 of the 'local station 1-6' display unit 112 to display the LCD 64 on each supply channel displayed on the 'local station 1-6' (Not shown) of the pressure of the pressurized air to display the trend of the pressure change in the information displayed on the screen.

The operator touches the touch panel 65 of the 'page' portion 117 of the air supply pressure display screen 111 so that the display of the LCD 64 is switched to the air supply pressure display screen of each supply branch pipe Can be converted. The operator can return to the surveillance information output screen 80 by touching the touch panel 65 of the 'main' portion 118 of the transmission air pressure display screen 111.

The operator touches the touch panel 65 of the shut-off valve unit 104 of the monitoring information output screen 80 to display the LCD 64 on the basis of the opening / closing state of the shutoff valve 52 for each zone by the above- To the shutoff valve operation display screen 121 to be displayed.

For example, the 'local station 5-8' display unit 122 on the shutoff valve operation display screen 121 is an indication corresponding to one zone as in the case of the above-described gas supply pressure of the supply branch pipe.

The detection output regarding the open / close state of the shutoff valve 52 provided in each supply branch pipe, that is, the detection output indicating whether the shutoff valve 52 is open or closed, is output to the sixth and seventh control substrates 56 and 57 Is given to the LCD 64 having the first monitoring control means 63 and the detection result is displayed on the shutoff valve operation display screen 121 of the LCD 64. [ The open / closed state of the detected shutoff valve 52 is displayed on the O ₂ gas shutoff valve display unit 123 of the "local station 5-8" display unit 122. The O ₂ gas shutoff valve display unit 123 is turned off when the shutoff valve 52 is open and blinks to indicate that the shutoff valve 52 is closed. When the shutoff valve 52 is closed, the valve opening / closing display panel unit 125 also flickers. The O ₂ gas shutoff valve display unit 123 and the valve open / close display panel unit 125 may be configured to be lighted and displayed. When the operator touches the touch panel 65 of the 'abnormal' part 102 of the LCD 64 when the O ₂ gas shutoff valve display part 123 flashes, the display of the LCD 64 is displayed on the operation panel And is converted into a corresponding predetermined information display screen. The operator can cope with the display information of the predetermined information display screen. The structure of such a display is the same for N ₂ gas, air, and suction, which are medical gases other than O ₂ gas, so that the description thereof is omitted.

The operation according to the input operation of the 'page' portion 124 and the 'touch panel 65' of the 'main' portion 118 of the shutoff valve operation display screen 121 is the same as in the case of the air supply pressure display screen 111.

The air supply pressure of the supply branch pipe and the shutoff valve that are piped for each of these zones are not limited to the monitoring by only the first monitoring and controlling means 63. Instead of monitoring by only the first monitoring and controlling means 63, For example, another computer may be installed in the nursing room and monitored by the computer.

Are displayed on the shutoff valve operation display screen 121 displayed by the operation of the air supply pressure display screen 111 and the shutoff valve unit 104 displayed by the operation of the zone pressure unit 103 The kind of the medical gas is not limited to that of the example screen but can be set to variable. For example, it is also possible to add another medical gas to the type of medical gas displayed on the example screen, or conversely, the display may be limited to three O ₂ , air, and anesthetic (N ₂ O) gases.

Next, as a detection output by the shutoff valve 52 and the terminal pressure sensor 53, the second display means 68 for responding with signals given from the sixth to ninth control substrates 56, 57, 58, The display will be described.

When one of the sixth to ninth control boards 56, 57, 58 and 59 detects an abnormality, that is, when the shutoff valve 52 has fallen in the appropriate range of the closing or sending pressure, the ninth warning light 129 is turned on . When the sixth or seventh control board 56 or 57 detects the closing of the shutoff valve 52, the eighth warning light 128 is turned on. Therefore, when only the ninth warning light 129 is turned on, it can be seen that the shutoff valve 52 is in a closed state when the air supply pressure is abnormal and both the eighth and ninth warning lights 128 and 129 are lit.

When the shutoff valve 52 and the terminal pressure sensor 53 are connected to different loops, the sixth and seventh warning lights 126 and 127 perform the same operations as the eighth and ninth warning lights 128 and 129, respectively. That is, when one of the sixth to ninth control substrates 56, 57, 58 and 59 detects an abnormality, the seventh alarm light 127 is turned on. When the sixth or seventh control board 56 or 57 detects the closing of the shutoff valve 52, the sixth alarm light 126 is turned on. Therefore, when only the seventh alarm light 127 is turned on, the shutoff valve 52 is in a closed state when the air supply pressure is abnormal and both the sixth and seventh alarm lights 126 and 127 are turned on.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And additions should be considered as falling within the scope of the claims of the present invention.

20: Medical gas supply system
21: stationary liquid O2 tank
22,23: Liquid O2 container
24, 25: N2 gas container
26: Compressor
27: Suction pump
30,36: Automatic switcher
31, 37, 40, 41,
32, 33: Mass sensor
38, 39: Pressure sensor
43: Liquid level detection sensor
46, 47, 48, 49, 50:
52: Isolation valve
53: Terminal pressure sensor
61: Medical gas monitoring system
62, 66: storage means
63, 67: monitoring control means
64: LCD65 touch panel
71, 72, 73, 74, 75:
76: Alarm buzzer
132: Surveillance operation switching means
133: Outgoing Means
134: receiving means

Claims (1)

A medical gas monitoring system for monitoring a sending-out pressure of a medical gas of a medical gas supplying means for supplying medical gas, which is a gas used for medical treatment, and notifying the above-mentioned state when the sending-
A storage means for storing predetermined information, and a predetermined value relating to the gas sending pressure of the medical gas are stored, and the detected value by the pressure detecting means is stored in advance Determining means for determining whether the pressure of the medical gas is equal to or less than a predetermined value and outputting the determination result and a second monitoring for outputting a monitoring control signal in response to an output of a determination result by the determination means; In response to the supervisory control signal outputted from the control means and the first supervisory control means, an operation instruction signal for operating the first display means and the first supervisory control means for displaying the predetermined information stored in the storage means, When the input means for inputting to the control means and the gas sending pressure of the medical gas are equal to or smaller than a predetermined value, Second display means for responding to a surveillance control signal outputted from a second surveillance control means and a second surveillance control means for outputting a surveillance control signal in response to an output, A receiving means provided in the first monitoring control means for transmitting an operation detection signal indicating that the first monitoring control means is in operation and a receiving means provided in the second monitoring control means for receiving an operation detection signal transmitted from the transmission means, Wherein the gas monitoring system comprises:

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