JP2005168913A - Medical gas monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a medical gas monitoring system capable of preventing occurrence of a non-monitored situation in monitoring the medical gas supply and avoiding the shut-off of the medical gas supply. <P>SOLUTION: In the medical gas monitoring system 61 set in a system 20 for feeding medical gas to be used in the medical treatment, the feeding pressure of medical gas, the mass of the medial gas, and the presence of abnormality in the operation in medical gas feeding means 21-27 are monitored by two first and second monitor control means 63 and 67. If the feeding pressure of N<SB>2</SB>gas or the mass of O<SB>2</SB>gas is a predetermined threshold or lower, or if there is abnormality in the operation of a compressor 26 or suction pump 27, the state is displayed in a liquid crystal display (LCD) 64, and is announced by means of warning lamps 71-75 and an alarm buzzer 76. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a medical gas monitoring system.

For example, a hospital or the like is provided with a system for supplying medical gas used for medical treatment such as oxygen (O ₂ ) gas, anesthesia laughing gas (N ₂ O) gas, nitrogen (N ₂ ) gas, and air. . Since medical gas is used for medical treatment such as treatment and surgery, it must not be disrupted in supply due to unforeseen circumstances related to human life and insufficient management due to lack of remaining capacity or equipment failure. is there. Therefore, a monitoring system is provided in the medical gas supply system so that the supply of the normal medical gas is not interrupted.

  One of the conventional technologies for monitoring the supply of medical gas so as not to be interrupted is an integrated display of the open / closed / normal / abnormal / working status of the shut-off valve in the gas feed passage for medical gas. There has been proposed a monitoring device that can monitor and cope with abnormalities (see Patent Document 1).

  FIG. 7 is a schematic diagram showing the configuration of the monitoring device 1 of the prior art. The conventional monitoring device shown in FIG. 7 is a medical gas shut-off valve opening / closing monitoring device 1. With reference to FIG. 7, the opening / closing monitoring apparatus 1 disclosed in Patent Document 1 will be described. The open / close monitoring device 1 collects and displays the open / closed / normal / abnormal / working state of the shutoff valve 10 provided in the medical gas feed pipe 9 for monitoring. The shutoff valve 10 is provided with an open / close detector 8, and a detection output related to the state of the shutoff valve 10 by the open / close detector 8 is input to the central processing unit 4 (abbreviated as CPU) via the interface 7. The CPU 4 is connected to a ROM 5, a RAM 6, an input unit 3 and a display unit 2. The detection signal from the open / close detector 8 input to the CPU 4 is signal-processed and output as an operation instruction signal for the display unit 2 to turn on or blink a lamp provided in the display unit 2. The lamp provided in the display unit 2 includes a normal lamp that indicates that the shut-off valve 10 is in a normal state, a warning lamp that indicates that the shut-off valve 10 that should be normally opened is in a closed state, and under inspection. There is an in-check lamp indicating that this is lit or blinked, and the open / close state of the medical gas shut-off valve 10 is monitored.

  However, the technique proposed in Patent Document 1 has the following problems. The open / close monitoring device 1 can monitor the operating state of the shutoff valve 10 provided in the medical gas feed pipe 9, but cannot monitor the shortage of the remaining amount of medical gas in the medical gas supply source. It is impossible to monitor whether there is an abnormal operation in the medical gas supply facility. Accordingly, although it is possible to cope with the supply interruption of the medical gas due to the abnormal operation of the shutoff valve 10, the supply of the medical gas due to the shortage of the remaining amount of the medical gas to be supplied and the abnormal operation of the medical gas supply facility There is a problem that it is impossible to cope with the disconnection.

  In recent years, a personal computer (abbreviated as PC) in which a CPU, a ROM, and a RAM shown in FIG. 7 are integrated is used for medical gas monitoring control. The PC dramatically improves processing speed and storage capacity, and is suitably used for medical gas monitoring control. However, a hard disk drive (abbreviated as HDD), which is a storage means for storing a program for controlling the operation of a PC, reaches the end of its life in one to two years in a harsh environment that is used continuously for 24 hours, such as supervisory control. There are many things. When the HDD reaches the end of its life and the PC that is the monitoring and control means suddenly becomes inoperable, the supply state of the medical gas cannot be monitored, so that an unexpected situation may occur and the supply of the medical gas may be interrupted. .

  In addition to the use of the PC for the monitoring control means, the abnormal condition in the supply of medical gas is displayed on the PC in addition to the lighting or blinking of the lamp or the sounding of the alarm buzzer as disclosed in Patent Document 1. Some parts display the name of the abnormality. However, in the related art related to the monitoring of medical gas, the abnormal name is only displayed. Therefore, the user who monitors medical gas examines the content of the abnormality according to the separately provided instruction manual based on the displayed abnormality name, and then checks the communication means such as the telephone number of the management company related to medical gas delivery. There is an inconvenience that you have to communicate the abnormal content.

  Moreover, in the conventional medical gas monitoring apparatus, when the name of the abnormality that has occurred is displayed on the display unit of the PC, the situation that occurs in the user of the medical gas monitoring apparatus cannot be accurately expressed in many cases. There is a problem that the abnormal name and other information prepared in advance in the monitoring device cannot be changed to information according to the usage mode of the user on the user side. This delays the user from accurately grasping the situation occurring in the medical gas supply system.

Utility Model Registration No. 3058559

  An object of the present invention is to provide a medical gas monitoring system capable of preventing the occurrence of a non-monitoring state in the monitoring of medical gas supply and avoiding a situation where the supply of medical gas is interrupted.

The present invention monitors the supply pressure of medical gas in a medical gas supply means for supplying medical gas, which is a gas used for medical treatment, and notifies the state when the supply pressure of medical gas is equal to or less than a predetermined value. Medical gas monitoring system
Pressure detecting means for detecting an air supply pressure of medical gas delivered from the medical gas supply means;
Storage means for storing predetermined information;
A predetermined value related to the supply pressure of the medical gas is stored, a determination unit that determines whether or not a detection value by the pressure detection unit is equal to or less than a predetermined value, and a determination unit that outputs the determination result;
First monitoring control means for outputting a monitoring control signal in response to the output of the determination result by the determination means when the supply pressure of the medical gas is not more than a predetermined value;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the supply pressure of the medical gas is not more than a predetermined value;
A medical gas monitoring system comprising: second display means for displaying that the supply pressure of the medical gas is equal to or lower than a predetermined value in response to a monitoring control signal output from the second monitoring control means. is there.

The present invention also monitors the mass of medical gas in a medical gas supply means for supplying medical gas, which is a gas used for medical treatment, and notifies the state when the mass of medical gas is equal to or less than a predetermined value. In the monitoring system,
Mass detection means for detecting the mass of medical gas stored in the medical gas supply means;
Storage means for storing predetermined information and determination means for storing a predetermined value relating to the mass of the medical gas, determining whether the detection value by the mass detection means is equal to or less than the predetermined value, and outputting the determination result When,
First monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the mass of the medical gas is equal to or less than a predetermined value;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the mass of the medical gas is equal to or less than a predetermined value;
A medical gas monitoring system comprising: second display means for displaying that the mass of the medical gas is equal to or less than a predetermined value in response to a monitoring control signal output from the second monitoring control means.

The present invention also relates to a medical gas monitoring system that monitors the operating state of a medical gas supply unit that supplies medical gas, which is a gas used for medical treatment, and notifies the abnormal operation when the medical gas supply unit has an abnormal operation. ,
An operation abnormality detection means for detecting an operation abnormality in the medical gas supply means;
Storage means for storing predetermined information;
Predetermined information related to medical gas operation abnormality is stored, and it is determined whether the detection output by the operation abnormality detection means matches the predetermined information, and a determination means for outputting the determination result;
A first monitoring control means for outputting a monitoring control signal when a detection output related to an operation abnormality of the medical gas supply means matches predetermined information;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control unit that outputs a monitoring control signal in response to an output of a determination result by the determination unit when a detection output related to an operation abnormality of the medical gas supply unit matches predetermined information;
A medical gas monitoring system comprising: a second display unit that responds to a monitoring control signal output from the second monitoring control unit and displays that the medical gas supply unit has an abnormal operation.

The present invention further includes monitoring operation switching means for switching the monitoring control signal output operation between the first monitoring control means and the second monitoring control means,
The monitoring operation switching means is
When the first monitoring control means stops operating, the second monitoring control means switches so that the operation starts, and when the first monitoring control means starts operating, the second monitoring control means switches so that the operation stops. .

In the present invention, the monitoring operation switching means is
A transmission means provided in the first monitoring control means for transmitting an operation detection signal indicating that the first monitoring control means is operating;
The second monitoring control means includes receiving means for receiving an operation detection signal sent from the sending means.

In the present invention, the predetermined information displayed on the first display means includes
Information relating to a coping method determined in advance so as to correspond to at least the first monitoring control signal is included.

  Further, the present invention is characterized in that the predetermined information stored in the storage means can be rewritten by inputting information from the input means.

  Further, the invention is characterized in that the input means is a touch panel provided on the first display means.

  According to the present invention, since the medical gas supply system includes the two monitoring control means, the first monitoring control means and the second monitoring control means, the medical gas supply can be monitored by using both. . As a result, even if either one of the first and second monitoring control means malfunctions, it is possible to continue monitoring the medical gas supply with the other, so that the occurrence of an abnormal situation can be grasped. In this case, it is possible to avoid the interruption of the supply of medical gas.

  According to the present invention, of the two first monitoring control means and the second monitoring control means provided in the medical gas monitoring system, only the first monitoring control means is normally used for monitoring the medical gas supply, and the first monitoring control is performed. Only when the means has malfunctioned, the second monitoring control means can be used to monitor the supply of medical gas as an alternative to the first monitoring control means by the switching operation by the monitoring operation switching means. As a result, when the medical gas supply cannot be monitored by the first monitoring control means, the medical gas supply can be monitored by the second monitoring control means, so that the occurrence of an abnormal situation is grasped and dealt with. By this, it is possible to avoid disconnection of the medical gas supply.

  Further, according to the present invention, the predetermined information displayed on the first display means includes at least information on a coping method determined in advance so as to correspond to the first monitoring control signal. It is possible to easily take measures to eliminate abnormal situations according to the information.

  Further, according to the present invention, the predetermined information stored in the storage means is configured to be rewritable by inputting information from the input means. As a result, the user can prepare information corresponding to the situation that occurs in the user's own usage environment as the predetermined information in advance, so that the abnormal situation or the like can be grasped quickly and accurately based on the information. Is possible. Therefore, the user can more reliably avoid the interruption of the supply of medical gas.

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

FIG. 1 is a diagram schematically showing a configuration of a medical gas monitoring system 61 showing an embodiment of the present invention. The medical gas monitoring system 61 (hereinafter, abbreviated as a monitoring system) is provided in the medical gas supply system 20 that supplies medical gas such as O ₂ gas, N ₂ gas, and air for treatment, surgery, etc. Monitor gas supply status.

First medical gas supply system 20 illustrated in this embodiment, housing as a medical gas supply source, a stationary liquid O ₂ tank 21 for containing a liquid O ₂ in stationary vessel, a liquid O ₂ in a bomb portable Two first and second liquid O ₂ cylinders 22 and 23, two first and second N ₂ gas cylinders 24 and 25 that store N ₂ gas in a portable cylinder, and a compressor that supplies air under pressure 26 and a suction pump 27 for sucking air. The medical gas supply source provided in the medical gas supply system 20 shown in FIG. 1 shows an example of the configuration, and other laughing gas (N ₂ O) gas, O ₂ and N ₂ are used instead of the compressor 26. A mixer for producing artificial air by mixing can be provided as a medical gas supply source.

The stationary liquid O ₂ tank 21, the first and second liquid O ₂ cylinders 22 and 23, the first and second N ₂ gas cylinders 24 and 25, the compressor 26, and the suction pump 27 are medical gas supply units.

The gas discharge ports of the first and second liquid O ₂ cylinders 22 and 23 are connected to the first automatic switch 30 by first and second connection pipes 28 and 29, respectively. The first automatic switch 30 automatically switches so that O ₂ gas is supplied from either the first liquid O ₂ cylinder 22 or the second liquid O ₂ cylinder 23. Switching of the O ₂ gas supply by the first automatic switch 30 is performed as follows.

The first automatic switch 30 is provided with a first substrate 31 (this substrate is referred to as a control substrate for convenience) provided with a processing circuit and a memory. The first control substrate 31 includes a first liquid O. Mass detection signals are input from a first mass sensor 32 that is mass detection means for detecting the mass of the _two cylinders 22 and a second mass sensor 33 that is mass detection means for detecting the mass of the second liquid O ₂ cylinder 23. . The first control board 31 is a predetermined value related to the mass of the first liquid O ₂ cylinder 22 that is being supplied with O ₂ gas and detected by the first mass sensor 32, for example. The difference from the stored threshold value is calculated, and it is determined whether or not the mass of the first liquid O ₂ cylinder 22 is equal to or less than the threshold value. Therefore, the first control board 31 is a determination unit in the medical gas supply unit.

The first control substrate 31 outputs a determination result as to whether or not the mass of the first liquid O ₂ cylinder 22 is equal to or less than a threshold value to first and second monitoring control means 63 and 67 described later, and 1 is output as an instruction signal for operating a flow path switching valve (not shown) provided in the automatic switching device 30, and the supply of O ₂ gas is switched from the first liquid O ₂ cylinder 22 to the second liquid O ₂ cylinder 23.

The first automatic switch 30 sends the O ₂ gas to the first supply pipe 46 without interrupting the supply of O ₂ gas in this way. The first liquid O ₂ cylinder 22 whose liquid O ₂ remaining amount has decreased is replaced with a new cylinder filled with the liquid O ₂ . When the mass of the second liquid O ₂ cylinder 23 decreases below the threshold, the first automatic switch 30 switches the O ₂ gas supply means to the replaced first liquid O ₂ cylinder 22.

The gas discharge ports of the first and second N ₂ gas cylinders 24 and 25 are connected to the second automatic switch 36 by third and fourth connection pipes 34 and 35, respectively. Second automatic switcher 36, _{N 2} gas from one of the 1N ₂ gas cylinder 24 or the 2N ₂ gas cylinder 25 is switched automatically to supply. The switching of the N ₂ gas supply by the second automatic switch 36 is performed in substantially the same manner as the switching of the O ₂ gas supply by the first automatic switch 30 described above.

It should be noted in the switching of the N ₂ gas supply that the second control board 37 provided in the second automatic switch 36 is provided from the first N ₂ gas cylinder 24 provided in the pipe line of the third connection pipe 34. a first pressure sensor 38 is a pressure detecting means for detecting the air pressure of the N ₂ gas, air pressure of the N ₂ gas supplied from the 2N ₂ gas cylinder 25 is provided to the pipe path of the fourth connection pipe 35 The detection output from the second pressure sensor 39 which is a pressure detecting means for detecting the pressure is given. The second control board 37 calculates the difference between the threshold value relating to the pressure that is a predetermined value related to the air supply pressure and the detected air supply pressure, and determines whether or not the air supply pressure is equal to or less than the threshold value. It is a determination means.

The second control board 37 outputs a determination result as to whether or not the air supply pressure of the N ₂ gas cylinder 24 or 25 is equal to or lower than a threshold value to first and second monitoring control means 63 and 67 described later, This is output as an instruction signal for operating a flow path switching valve (not shown) provided in the second automatic switching device 36, and the second automatic switching device 36 sends it to the second supply piping 47 without interrupting the supply of N ₂ gas. To do.

  The air pressurized by the compressor 26 is sent to the third supply pipe 48. The compressor 26 is also provided with a third control board 40, and the third control board 40 detects a signal indicating whether or not electric power for operating the compressor 26 is supplied, that is, an on / off signal for operating current conduction. Further, an off signal for operating current supply is stored in the third control board 40 as predetermined information related to the operation abnormality, and the third control board 40 determines whether or not the operating state of the operating current matches the off signal. Done.

  Therefore, in the compressor 26, the 3rd control board 40 is an operation abnormality detection means, and comprises a determination means. Needless to say, the off signal when the power is cut off is treated as an abnormality. The output of the determination result by the third control board 40 which is this determination means is given to the first and second monitoring control means 63 and 67 described later.

  The compressor 26 is provided with a pressure sensor (not shown), and the detection output of the air supply pressure by the pressure sensor is input to the third control board 40, and the first monitoring control means is further supplied from the third control board 40. It is sent to the 1st display means 64 via 63, and it is comprised so that an air supply pressure value and pressure abnormality may be displayed.

  The suction pump 27 is used by being connected to a suction device that sucks, for example, a patient's sputum or the like. Therefore, the suction pump 27 does not supply air but conversely sucks air to create a low pressure state. Defined as supply means. The suction of the air by the suction pump 27 is performed through a fourth supply pipe 49 (which is referred to as a supply pipe for the sake of convenience, although air is not supplied but is sucked). The fourth control board 41 is also provided in the suction pump 27, and a signal indicating whether or not the power for operating the suction pump 27 is supplied by the fourth control board 41, that is, an on / off signal of operating current conduction is detected. The Further, an off signal for operating current supply is stored in the fourth control board 41 as predetermined information related to the operation abnormality, and the fourth control board 41 determines whether or not the supplied state of the operating current matches the off signal. Is called.

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

  The suction pump 27 is also provided with a pressure sensor (not shown), and the detection output of the suction pressure of the air by the pressure sensor is input to the fourth control board 41, and further from the fourth control board 41 to the first monitoring control means. It is sent to the 1st display means 64 via 63, and it is comprised so that a suction pressure value and pressure abnormality may be 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 is provided with a fifth control board 42, and the fifth control board 42 detects the liquid level of the liquid O ₂ in the stationary liquid O ₂ tank 21. A remaining amount detection signal is input from a liquid level detection sensor 43 which is a remaining amount detecting means for detecting the remaining amount. The fifth control board 42 is a predetermined value related to the remaining amount of the liquid O ₂ , and calculates the difference from the liquid level height threshold value stored in the fifth control board 42, thereby performing the stationary liquid O _2. In other words, it is determined whether the liquid level of the tank 21 is equal to or less than the threshold value. Therefore, the fifth control board 42 is a determination unit. The fifth control substrate 42 outputs a determination result as to whether or not the remaining amount of the stationary liquid O ₂ tank 21 is equal to or less than a threshold value to first and second monitoring control means 63 and 67 described later.

  The first to fifth control boards 31, 37, 40, 41, 42 that are determination means are electrically connected by a so-called cross wiring 44, and the first and second monitoring of the fifth control board 42 and the monitoring system 61. The control means 63 and 67 are electrically connected. As a result, the output of the determination result by the first to fifth control boards 31, 37, 40, 41, 42 is input to the first and second monitoring control means 63, 67 of the monitoring system 61.

The threshold and relates to the air pressure threshold and N ₂ gas about the mass of the liquid O ₂ described above, since disturbing the supply of O ₂ gas and N ₂ gas becomes below the threshold, cylinder replacement or tank It is a value that serves as an index for performing supplementary work.

O ₂ gas, N ₂ gas, and air are supplied to the use department through the first to fifth supply pipes 46, 47, 48, 49, and 50 (air suction is also shown as supply for convenience). More specifically, the first to fifth supply pipes 46, 47, 48, 49, and 50 include the first to fifteenth supply branch pipes 46a, 47a, 48a, 49a, and 50a, which are supply branch pipes, respectively. 21st to 25th supply branch pipes 46b, 47b, 48b, 49b, 50b are provided, and the aforementioned medical gas is supplied from these supply branch pipes, for example, on the first floor, the second floor, etc. in the hospital building 51 or Supplied to the operating room.

  The 11th to 15th supply branch pipes 46a, 47a, 48a, 49a, 50a and the 21st to 25th supply branch pipes 46b, 47b, 48b, 49b, 50b include a shutoff valve 52 and a terminal pressure sensor 53 in the pipeline. Are provided. The shutoff valve 52 is provided with an open / close detector, and the open / closed state of the shutoff valve 52 detected by the open / close 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 pipeline is input to the sixth and seventh control boards 56 and 57, respectively, and the detection output of the terminal pressure sensor 53 is input to the eighth and ninth control boards 58 and 59, respectively. Entered. In the eighth and ninth control boards 58 and 59, the upper and lower limits of the appropriate pressure range in the use of the medical gas at the terminal are stored in advance as threshold values, and the eighth and ninth control boards 58 and 59 are stored in the terminal pressure sensor 53. It is determined whether or not the detected value is within an appropriate range, and the determination result is output. In the present 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 structure provided may be sufficient.

  The sixth to ninth control boards 56, 57, 58 and 59 are electrically connected by the cross wiring 60, and the eighth control board 58 is electrically connected to the first and second monitoring control means 63 and 67. . As a result, 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 boards 56 and 57, and the detection value and detection value of the terminal pressure sensor 53 are appropriate. The determination result as to whether or not it is within the range is given to the first and second monitoring control means 63 and 67 by the eighth and ninth control boards 58 and 59.

  The end of each supply branch pipe disposed in the hospital building 51 is connected to, for example, a medical gas pipe connection terminal provided in a storage unit or the like, and the pipe connection terminal is connected to a gas introduction pipe of a medical instrument such as a ventilator. The terminal is connected to use medical gas supplied from the medical gas supply means.

The monitoring system 61 is a system attached to the medical gas supply system 20 as described above. The monitoring system 61 includes the following. First, it is included in the medical gas supply system 20 described above and constitutes the monitoring system 61, and is stored in the first and second liquid O ₂ cylinders 22 and 23 and the stationary liquid O ₂ tank 21 described above. The first and second mass sensors 32 and 33 and the liquid level detection sensor 43 for detecting the mass and remaining amount of the liquid O ₂ to be supplied, and the supply of N ₂ gas sent from the first and second N ₂ gas cylinders 24 and 25 Operation of first and second pressure sensors 38 and 39 for detecting pressure, first, second and fifth control boards 31, 37 and 42 to which detection outputs of the respective sensors are inputted, operation of the compressor 26 and the suction pump 27 Crossover wiring 4 connecting the third and fourth control boards 40 and 41, which are operation abnormality detection means for detecting an abnormality, and the first to fifth control boards 31, 37, 40, 41 and 42. If, like the electric wires connected to the fifth control board 42 and first and second monitoring control unit 63, 67 is.

  In addition to these, the monitoring 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, and a second display means 68. It is comprised including.

The first monitoring control unit 63 is realized by a computer equipped with a CPU. As the storage means 62, for example, an HDD provided in a computer is preferably used. The storage means 62 is predetermined in accordance with the case where the mass detection result of the liquid O ₂ and the air supply pressure detection result of the N ₂ gas are equal to or less than the threshold, and when the compressor 26 and the suction pump 27 are abnormal in operation. Predetermined information is stored.

For example, as illustrated in FIG. 2, the predetermined information is “abnormal content”, “coping method”, and “trader telephone number”, and is determined to include at least “coping method”. More specifically, the “content of abnormality” is, for example, “liquid O ₂ remaining amount reduction”, the “coping method” is “a replacement or replenishment instruction to a contractor”, and “ The “telephone number” is the contact information for the supplier giving the replenishment instruction.

  The monitoring system 61 of the present embodiment is characterized in that such predetermined information can be rewritten. Since only the predetermined information set by the manufacturer of the monitoring system 61 is assumed, it may not be possible to accurately represent the abnormal situation that occurs in the user's own usage environment and usage method, so that the predetermined information can be rewritten. Is. By inputting from the input means 65 described later, a folder related to predetermined information stored in the storage means 62 can be read, and the information can be rewritten to contents desired by the user. Here, rewriting means both content change and content addition.

  As the first display means 64, for example, a liquid crystal display (abbreviated as LCD) is used. In this embodiment, 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 a touch panel provided on the LCD 64 (hereinafter sometimes abbreviated as TP). It is. By using the touch panel 65 as the input unit 65, an operation instruction signal can be input to the first monitoring unit 63 in an interactive manner via an intelligent terminal (not shown), and various information can be input. Become. Here, although only the LCD 64 is given as an input means, a keyboard or a mouse may be used in addition, or these input means may be used in combination.

The first monitoring control means 63 indicates that the determination result from any of the first, second, or fifth control substrates 31, 37, 42 indicates that the N ₂ gas supply pressure or the mass or remaining amount of the liquid O ₂ is less than the threshold value. When this is shown, the first monitoring control signal is output. The first monitoring means 63 outputs a first monitoring control signal when the determination result of the third or fourth control board 40, 41 indicates that the compressor 26 or the suction pump 27 is operating abnormally.

The first monitoring control signal indicates to the LCD 64 an image indicating that the N ₂ gas supply pressure or the liquid O ₂ mass or the remaining amount is equal to or less than a threshold value, and that the compressor 26 or the suction pump 27 is abnormal in operation. This is a signal for displaying character information and instructing the LCD 64 to display predetermined information such as that shown in FIG.

  Further, the detection of the shutoff valve 52 and the terminal pressure sensor 53 provided in the 11th to 15th supply branch pipes 46a, 47a, 48a, 49a, 50a and the 21st to 25th supply branch pipes 46b, 47b, 48b, 49b, 50b. The output is input from the sixth to ninth control boards 56, 57, 58, 59 to the LCD 64 via the first monitoring control means 63. On the LCD 64, based on the output signals from the sixth to ninth control boards 56, 57, 58, 59, the open / close state of the shut-off valve 52 provided in each branch pipe and the medical treatment flowing through each branch pipe The gas supply pressure is displayed.

Further, the storage means 62 includes a detected mass value of the liquid O ₂ stored in the first and second liquid O ₂ cylinders 22 and 23 by the first and second mass sensors 32 and 33, and a liquid level detection sensor 43. and detecting the residual amount value of the liquid _{O 2} contained in stationary liquid _{O 2} tank 21, the _{N 2} gas delivered from the first and 2N ₂ gas cylinder 24, 25 by the first and second pressure sensors 38 and 39 The detected air supply pressure value, the on / off operation state of the compressor 26 and the suction pump 27 by the third and fourth control boards 40 and 41, and the compressor 26 and the suction pump 27 by the third and fourth control boards 40 and 41 The air supply pressure value and the suction pressure value are stored as time passes. Therefore, the user operates the first monitoring control unit 63 by inputting an operation instruction signal from the touch panel 65, and detects the detected mass value and the detected remaining amount value, the detected air supply pressure value, and the detected suction pressure value. The time transition between the on / off operation state and the air supply pressure value in the supply branch pipe, that is, the trend can be displayed on the LCD 64.

The second monitoring control means 67 is realized by a one-chip microcomputer, for example. The second display means 68 includes first and second liquid O ₂ cylinders 22 and 23 that are medical gas supply means, first and second N ₂ gas cylinders 24 and 25, a compressor 26, a suction pump 27, and a stationary type. First to fifth alarm lamps 71, 72, 73, 74, 75 provided corresponding to the liquid O ₂ tank 21, and sixth to fifth alarm lamps provided corresponding to the shut-off valve 52 and the terminal pressure sensor 53, respectively. 9 alarm lamps 126, 127, 128, and 129, and first and second alarm buzzers 76a and 76b.

In the second monitoring control means 67, the determination results output from the first and second control boards 31, 37 and the fifth control board 42 are based on whether the N ₂ gas supply pressure or the mass or remaining amount of the liquid O ₂ is a threshold value. When the following is indicated, the second monitoring control signal is output. The second monitoring control means 67 outputs a second monitoring control signal when the determination result output from the third and fourth control boards 40 and 41 indicates that the compressor 26 or the suction pump 27 is operating abnormally. To do.

The second monitoring control signal indicates that the N ₂ gas supply pressure or the mass or remaining amount of the liquid O ₂ is less than or equal to a threshold value relative to the second display means 68, and the compressor 26 or the suction pump 27 is abnormal in operation. In order to notify this, the alarm lamp corresponding to the abnormal medical gas supply means is turned on or blinked, and the signal is instructed to sound the alarm buzzer 76.

  FIG. 3 is an image diagram of the monitoring information output screen 80 displayed on the LCD 64. With reference to FIG. 3, the display of the monitoring state will be described.

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

When the detection output value of the remaining amount of liquid O ₂ stored in the stationary liquid O ₂ tank 21 is equal to or lower than a predetermined threshold, the first monitoring control unit 63 supplies liquid to the stationary liquid O ₂ tank 21. A first monitoring control signal of a display operation instruction that prompts switching of the O ₂ gas supply to the spare first or second liquid O ₂ cylinders 22 and 23 is output to the LCD 64. In response to the first monitoring control signal, the replenishment lamp unit 83 and the standby switching lamp unit 84 of the liquid O ₂ tank panel display unit 81 have increased in luminance (hereinafter, this state is called lighting according to the lamp). It becomes a state.

At this time, the “replenishment” portion 101 of the LCD 64 is also blinking, and the stationary liquid O ₂ display frame portion 99 is also blinking. The “replenishment” unit 101 and the stationary liquid O ₂ display frame unit 99 may be configured to be lit. When the operator touches the touch panel 65 of the “replenishment” unit 101, the display on the LCD 64 is converted into a predetermined information display screen (not shown) as shown in FIG. The operator can instruct the supplier to replenish the liquid O ₂ in accordance with display information on a predetermined information display screen. When the liquid O ₂ is replenished to the stationary liquid O ₂ tank 21, the high brightness of the liquid O ₂ tank mass display unit 82 is generated in accordance with the first monitoring control signal output from the first monitoring control means 63 to the LCD 64. The height of the portion is increased, and the replenishment lamp portion 83 and the spare switching lamp portion 84 are turned off.

When the first monitoring control unit 63 and the second monitoring control unit 67 are used together as in the present embodiment, the remaining amount of liquid O ₂ stored in the stationary liquid O ₂ tank 21 as described above. Since the detection output is also input from the fifth control board 42 to the second monitoring control means 67, when the detection output value becomes equal to or less than a predetermined threshold value, the second monitoring control means 67 _{A second} monitoring control signal, which is an operation instruction signal for turning on the fifth alarm lamp 75 corresponding to the _two tanks 21 and sounding the first alarm buzzer 76a, is output to the second display means 68 and operated as described above. .

While the first alarm buzzer 76a is sounding, the alarm confirmation switch (not shown) provided on the panel surface of the second monitoring control means 67 is pressed to stop the sounding of the first alarm buzzer 76a. The alarm buzzer 76b can be sounded. When the liquid O ₂ is replenished to the stationary liquid O ₂ tank 21, according to the second monitoring control signal output from the second monitoring control means 67 to the fifth alarm lamp 75 and the second alarm buzzer 76 b, The fifth alarm lamp 75 is turned off and the second alarm buzzer 76b stops ringing.

In addition, when the ringing of the first alarm buzzer 76a is stopped and the second alarm buzzer 76b is ringing, there is a state in which the medical gas supply means other than the stationary liquid O ₂ tank 21 needs to be replenished or an abnormal operation. When it occurs, the first alarm buzzer 76a sounds again in response to the first monitoring control signal.

In the medical gas supply system 20 according to the present embodiment, the stationary liquid O ₂ tank 21 is used as a main supply source of O ₂ gas, and the first and second liquid O ₂ cylinders 22 and 23 are used as spare supply sources. Used. Therefore, one of the first and second liquid O ₂ cylinders 22 and 23 is a spare supply source, and the other is a spare spare supply source.

The masses of the first and second liquid O ₂ cylinders 22, 23 are detected by the first and second mass sensors 32, 33, and the detection results are output from the first control board 31. Then, it is input to the LCD 64. In this way, the mass detection results of the first and second liquid O ₂ cylinders 22 and 23 are displayed on the liquid O ₂ cylinder mass display section 86 of the liquid O ₂ cylinder panel display section 85. The liquid O ₂ cylinder mass display unit 86 is provided with two first and second liquid O ₂ cylinder mass display units 86a and 86b corresponding to the first and second liquid O ₂ cylinders 22 and 23, respectively.

Mass of the liquid _{O 2} contained in the first and second liquid _{O 2} gas cylinder 22, 23, to be high-brightness display in a liquid _{O 2} cylinder weight display unit 86, in the case of stationary liquid _{O 2} tank 21 It is the same. For example, when the mass of the liquid O ₂ stored in the first liquid O ₂ cylinder 22 is equal to or less than a predetermined threshold, the first monitoring control unit 63 outputs a first monitoring control signal to the LCD 64, The replenishment lamp portion 87a corresponding to the first liquid O ₂ cylinder 22 is turned on. Mass of the liquid O ₂ contained in the second liquid O ₂ gas cylinder 23, when it becomes less than a predetermined is a threshold, and turns on the refill lamp unit 87b corresponding to the second liquid O ₂ gas cylinder 23 in a similar manner.

Thereafter, in the same manner as the monitoring of the stationary liquid O ₂ tank 21, when the operator touches the touch panel 65 of the “replenishment” unit 101 of the LCD 64, a predetermined information display screen is displayed. According to the display information on the information display screen, the supplier can be instructed to replace the liquid O ₂ cylinder. As described above, during the cylinder replacement, the automatic switch 30 switches the supply of O ₂ gas from the other filling cylinder. When the liquid O ₂ cylinder whose mass has been reduced is replaced with a new filling cylinder, the height of the high-intensity portion of the liquid O ₂ cylinder mass display unit 86 is increased in accordance with the output from the first control board 31 and is replenished. The lamp part 87a or 87b is turned off.

Similarly to the monitoring of the stationary liquid O ₂ tank 21, when the mass detection value of the first or second liquid O ₂ cylinder 22, 23 falls below a predetermined threshold value, the second monitoring control unit 67 The first alarm lamp 71 and the first alarm buzzer 76a corresponding to the first or second liquid O ₂ cylinders 22 and 23 are turned on and sounded. The operation of the alarm confirmation switch can be switched to the second alarm buzzer 76b as in the case of the stationary liquid O ₂ tank 21.

The air supply pressures of the first and second N ₂ gas cylinders 24 and 25 are detected by the first and second pressure sensors 38 and 39, and the detection result is output from the second control board 37, and the first monitoring control means 63 is operated. Then, it is input to the LCD 64. The air supply pressure detected by the first and second pressure sensors 38 and 39 in this way is converted into the N ₂ gas remaining amount in the cylinder, and the N ₂ cylinder remaining amount display of the N ₂ cylinder panel display unit 88 is displayed. Displayed in the sections 89a and 89b. The N ₂ cylinder panel display unit 88 is provided with supplementary lamp units 90a and 90b corresponding to the first and second N ₂ gas cylinders 24 and 25, respectively.

The display operation of the LCD 64 and the N ₂ cylinder panel display unit 88 by the first monitoring control means 63 related to the first and second N ₂ cylinders 24 and 25 is the first and second liquids except that the detected output value is the air supply pressure. Since it is exactly the same as in the case of the O ₂ cylinders 22 and 23, description of the operation is omitted. The display operation of the second alarm lamp 72 and the alarm buzzers 76a and 76b by the second monitoring control means 67 is the same as that of the first and second liquid O ₂ cylinders 22 and 23.

  The power supply on / off signal for operation of the compressor 26 and the determination result that the operation is abnormal are input from the third control board 40 to the first monitoring control means 63. When it is determined that the compressor 26 is abnormal in operation, the first monitoring controller 63 outputs a first monitoring control signal to the LCD 64 and displays on the air panel display unit 91 that the compressor 26 is in an abnormal operation state. Let In the display on the air panel display unit 91, when the power supply for operating the compressor 26 is off, the abnormal lamp unit 92 is lit.

When the abnormal lamp portion 92 is in the lighting state, the “abnormal” portion 102 of the LCD 64 also blinks. The “abnormal” portion 102 may be configured to be lit. When the operator touches the touch panel 65 of the “abnormal” section 102, the display on the LCD 64 is converted into a predetermined information display screen corresponding to the abnormal operation of the compressor 26. The operator can instruct the equipment manager of the compressor 26 to repair in accordance with display information on a predetermined information display screen. When the compressor 26 is repaired and the power supply for operating the compressor 26 is turned on, that is, when the determination result on the third control board 40 is no longer abnormal, the first monitoring control means 63 outputs to the LCD 64. In response to the 1 monitoring control signal, the abnormal lamp portion 92 of the air panel display portion 91 is turned off. Further, the display operation of the third alarm lamp 73 and the alarm buzzers 76a and 76b by the second monitoring control means 67 when the operation abnormality occurs in the compressor 26 is the same as in the case of O ₂ gas supply and N ₂ gas supply.

  As described above, the air supply pressure detected by the pressure sensor provided in the compressor 26 is input to the third control board 40 and input from the third control board 40 to the LCD 64 via the first monitoring control means 63. The numerical value can be displayed on the air pressure display section 93.

  The power supply on / off signal for operating the suction pump 27 and the determination result that the operation is abnormal are input from the fourth control board 41 to the first monitoring control means 63. When it is determined that the suction pump 27 is abnormal in operation, the first monitoring control unit 63 outputs a first monitoring control signal to the LCD 64 to indicate that the suction pump 27 is in an abnormal operation state. To display. The display on the suction panel display unit 94 indicates that the abnormal lamp unit 95 is turned on when the power supply for operating the suction pump 27 is off.

  When the abnormality lamp unit 95 is in a lighting state, when the operator touches the touch panel 65 of the “abnormality” unit 102 of the LCD 64, the display on the LCD 64 is converted into a predetermined information display screen corresponding to the operation abnormality. The ability to respond according to the information is the same as in the case of the compressor 26 described above. Further, the display operation of the fourth alarm lamp 74 and the alarm buzzers 76a and 76b by the second monitoring control means 67 when the operation abnormality occurs in the suction pump 27 is the same as that of the compressor 26.

  In addition, the suction pressure of air detected by the pressure sensor provided in the suction pump 27 is input to the fourth control board 41 and is input from the fourth control board 41 to the LCD 64 via the first monitoring control means 63, and the suction pressure. Can be displayed as a numerical value on the suction pressure display section 96 (the numerical value is displayed as a negative value since it is suctioned).

  Further, in the present embodiment, four suction pumps are configured to be supervised and controlled, and four operation lamp units 97 and four failure lamp units 98 are provided corresponding to the suction pump units. For example, when four suction pumps are operated, the on / off signal for supplying power for operation of each unit is input to the LCD 64 via the first monitoring control means 63 from the control board provided for each unit, and provided for each unit. Since it is also displayed on the operation lamp unit 97 and the failure lamp unit 98, it is detected which unit has an abnormality by turning on the failure lamp unit 98 provided for each unit and turning on the abnormal lamp unit 95. be able to.

  Further, when the operator touches the touch panel 65 of the “zone pressure” section 103 of the LCD 64, the display on the LCD 64 is displayed for each zone in which medical gas is supplied by the supply branch pipe, for example, each room on each floor of the hospital building 51. It is possible to convert to an air supply pressure display screen 111 that is divided every time. FIG. 4 is an image diagram of the air supply pressure display screen 111 displayed on the LCD 64. For example, the “slave station 1-6” display unit 112 on the air supply pressure display screen 111 is a display corresponding to one section as described above.

  The detection output of the terminal pressure sensor 53 provided in each supply branch pipe is input to the eighth and ninth control boards 58 and 59, and further monitored as information for each pipeline from the eighth and ninth control boards 58 and 59. The data is input to the LCD 64 via the first monitoring control means 63 of the system 61. Further, the eighth and ninth control boards 58 and 59 output a comparison result between the detection output of the air supply pressure by the terminal pressure sensor 53 and a predetermined threshold value to the LCD 64, and the air supply pressure display of the LCD 64 is displayed. It is displayed on the screen 111. Note that the predetermined threshold value for the medical gas flowing through the supply branch pipe is a threshold value set as the upper and lower limit values of the supply pressure of the medical gas supplied to the terminal as described above, and these threshold values are also set in advance. It can be stored in the eighth and ninth control boards 58 and 59.

For example, the O ₂ gas supply pressure detected by the terminal pressure sensor 53 is displayed on the O ₂ gas terminal pressure display unit 113 of the “child station 1-6” display unit 112. The O ₂ gas terminal pressure display unit 113 includes a pressure display bar unit 114 and first and second warning lamp units 115a and 115b. The pressure display bar unit 114 is displayed so that the length extending from the left to the right toward the screen of the high luminance portion becomes longer as the detected value of the air supply pressure becomes higher. Further, when the detected value of the air supply pressure becomes equal to or lower than the lower limit value, the first warning lamp portion 115a blinks. Conversely, when the detected value of the air supply pressure becomes equal to or higher than the upper limit value, the second warning lamp portion 115b flashes. At the same time, the pressure display frame 120 flashes. Note that the first and second warning lamp portions 115a and 115b and the pressure display frame portion 120 may be configured to light up. When the warning lamp 115a or 115b flashes, when the operator touches the touch panel 65 of the “abnormal” portion 102 of the LCD 64, the display on the LCD 64 is a predetermined information display screen corresponding to an abnormal air supply pressure in the supply branch pipe. Is converted to The operator can take action according to display information on a predetermined information display screen. The configuration of such display is the same for N ₂ gas, which is a medical gas other than O ₂ gas, air, and suction, and thus the description thereof is omitted.

It should be noted that the valve display unit 119 on the right side of the second warning lamp unit 115b toward the screen has the O ₂ gas supply branch pipe cutoff valve 52 when the terminal pressure sensor 53 and the cutoff valve 52 are provided together. The open / closed state can be displayed together with the air supply pressure display screen 111. The display conditions of the valve display unit 119 are the same as in the case of the shut-off valve display screen 121 described later, and the shut-off valve 52 blinks in the closed state and turns off in the open state. When only the terminal pressure sensor 53 is provided in the supply branch pipe and the shutoff valve 52 is not provided, the valve display unit 119 can be deleted from the air supply pressure display screen 111.

  Further, when the operator touches the touch panel 65 of the “trend” unit 116 of the “slave station 1-6” display unit 112, the display on the LCD 64 is displayed on each “slave station 1-6” display unit 112. By converting to a time transition display screen (not shown) of the air supply pressure of the supply branch pipe, the trend of the pressure change can be known from the information displayed on the screen.

  Further, when the operator touches the touch panel 65 of the “page” portion 117 of the air supply pressure display screen 111, the display on the LCD 64 is changed to the air supply pressure of each supply branch pipe in the area other than that displayed on the current screen. It can be converted to a display screen. Furthermore, when the operator touches the touch panel 65 of the “main” portion 118 of the air supply pressure display screen 111, the monitor information output screen 80 illustrated in FIG. 3 can be returned to.

  When the operator touches the touch panel 65 of the “shutoff valve” section 104 of the monitoring information output screen 80, the display on the LCD 64 is displayed, and the open / close state of the shut-off valve 52 for each area by the supply branch pipe is displayed. The operation display screen 121 can be converted.

  FIG. 5 is an image diagram of the shut-off valve operation display screen 121 displayed on the LCD 64. For example, the “slave station 5-8” display unit 122 on the shutoff valve operation display screen 121 is a display corresponding to one area similar to the case of the air supply pressure in the supply branch pipe described above.

A detection output related to the open / close state of the shutoff valve 52 provided in each supply branch pipe, that is, a detection output of whether the shutoff valve 52 is in an open state or a closed state is output by the sixth and seventh control boards 56 and 57. This is given to the LCD 64 via 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 detected opening / closing state of the shutoff valve 52 is displayed on the O ₂ gas shutoff valve display section 123 of the “slave station 5-8” display section 122. The O ₂ gas shut-off valve display unit 123 is turned off when the shut-off valve 52 is open, and blinks when the shut-off valve 52 is closed. When the shutoff valve 52 is closed, the valve opening / closing display frame portion 125 also blinks. The O ₂ gas cutoff valve display unit 123 and the valve opening / closing display frame unit 125 may be configured to be lit. When the O ₂ gas cutoff valve display unit 123 flashes, the operator touches the touch panel 65 of the “abnormality” unit 102 of the LCD 64 so that the display on the LCD 64 corresponds to an abnormal operation of the cutoff valve 52 in the supply branch pipe. It is converted into a predetermined information display screen. The operator can take action according to display information on a predetermined information display screen. The configuration of such display is the same for N ₂ gas, which is a medical gas other than O ₂ gas, air, and suction, and thus the description thereof is omitted.

  The operations associated with the input operation of the touch panel 65 of the “page” portion 124 and the “main” portion 118 of the shut-off valve operation display screen 121 are the same as those of the air supply pressure display screen 111.

  The air supply pressure of the supply branch pipes and the open / close state of the shutoff valve that are piped for each area are not limited to the monitoring by the first monitoring control means 63 alone, but for each area or for each merged area that merges a plurality of areas. For example, another control computer may be provided in the nurse station, and the computer may be monitored by the computer.

The types of medical gas displayed on the air supply pressure display screen 111 displayed by the operation of the “zone pressure” unit 103 and the shutoff valve operation display screen 121 displayed by the operation of the “shutoff valve” unit 104 are as follows. The screen can be variably set without being limited to the example screen. For example, it is possible to add another medical gas to the type of medical gas displayed on the example screen, and conversely, the display is limited to three of O ₂ , air, and laughter (N ₂ O). It is also possible to do.

  Next, the display on the second display means 68 that responds to signals output from the sixth to ninth control boards 56, 57, 58, 59, which are detection outputs by the shutoff valve 52 and the terminal pressure sensor 53, will be described.

  When any of the sixth to ninth control boards 56, 57, 58, 59 detects an abnormality, that is, when the shut-off valve 52 is closed or the air supply pressure is out of the proper range, the ninth alarm lamp 129 is turned on. Further, when the sixth or seventh control board 56, 57 detects the closing of the shutoff valve 52, the eighth alarm lamp 128 is turned on. Therefore, when only the ninth alarm lamp 129 is lit, it is known that the air supply pressure is abnormal, and when both the eighth and ninth alarm lamps 128 and 129 are lit, it is known that the shutoff valve 52 is closed. it can.

  When the shutoff valve 52 and the terminal pressure sensor 53 are connected to different loops, the sixth and seventh alarm lamps 126 and 127 perform the same operations as the eighth and ninth alarm lamps 128 and 129, respectively. To do. That is, when any of the sixth to ninth control boards 56, 57, 58, 59 detects an abnormality, the seventh alarm lamp 127 is turned on. Further, when the sixth or seventh control board 56, 57 detects the closing of the shutoff valve 52, the sixth alarm lamp 126 is turned on. Therefore, when only the seventh alarm lamp 127 is lit, it is an air supply pressure abnormality, and when both the sixth and seventh alarm lamps 126 and 127 are lit, the shutoff valve 52 is closed.

  FIG. 6 is a diagram schematically showing the configuration of the monitoring system 131 according to the second embodiment of this invention. The monitoring system 131 of the present embodiment is similar to and corresponds to the monitoring system 61 of the first embodiment, and the same reference numerals are assigned and description thereof is omitted.

  What should be noted in the monitoring system 131 of the present embodiment is that it further includes a monitoring operation switching unit 132 that switches the monitoring operation between the first monitoring control unit 63 and the second monitoring control unit 67. The monitoring system 131 includes a tenth alarm lamp 130 corresponding to the monitoring operation switching unit 132 as the second display unit 68.

  The monitoring operation switching unit 132 is provided in the first monitoring control unit 63, and is provided in the transmission unit 133 that transmits an operation detection signal indicating that the first monitoring control unit 63 is operating, and the second monitoring control unit 67. And receiving means 134 for receiving an operation detection signal sent from the sending means 133.

  The transmitting means 133 is realized by a circuit that outputs a watch dog signal, for example. The reception unit 134 includes a watchdog signal reception unit, a reception presence / absence determination unit, and a monitoring control operation instruction signal output unit for the second monitoring control unit 67.

  The watch dog signal output section which is the transmission means 133 is provided in parallel with, for example, a clock circuit so that the watch dog signal is continuously transmitted while the first monitoring control means 63 is operating normally.

  The receiving unit 134 determines reception of the watch dog signal in the determination unit while receiving the watch dog signal, and does not output a monitoring control operation instruction signal to the second monitoring control unit 67. Therefore, the operation of the second monitoring control means 67 is in a stopped state. Conversely, when reception of the watchdog signal is interrupted, the determination unit determines that no watchdog signal is received, outputs a monitoring control operation instruction signal to the second monitoring control means 67, and turns on the alarm lamp 130. Then, the monitoring control operation by the second monitoring control means 67 is executed. As described above, when the operation of the first monitoring control unit 63 is stopped, the monitoring operation switching unit 132 switches so that the second monitoring control unit 67 executes the monitoring operation instead of the first monitoring control unit 63. be able to.

  By providing the monitoring operation switching unit 132, when the monitoring of the medical gas supply by the first monitoring control unit 63 is impossible, the monitoring of the medical gas supply can be performed by switching to the second monitoring control unit 67. During the monitoring, only the first monitoring control unit 63 of the two monitoring control units is operated, so that waste can be eliminated. Although the operation is usually performed only by the first monitoring control unit 63, when an operation abnormality occurs in the first monitoring control unit 63, the operation can be switched to the monitoring control by the second monitoring control unit 67. It is possible to avoid the interruption of the supply of medical gas by reliably grasping and dealing with it.

  It should be noted that during the monitoring control operation by the second monitoring control means 67, the cause of the operation stoppage of the first monitoring control means 63 and the countermeasure, that is, the countermeasure against the abnormality is performed. As a result of dealing with the abnormality, when the first monitoring control unit 63 is restored to a normal monitoring control operation and a watch dog signal is transmitted from the transmission unit 133, the reception unit 134 receives the watch dog signal, and the determination unit receives the watch dog signal. Is stopped, the output of the monitoring control operation instruction signal is stopped, the alarm lamp 130 is turned off, and the monitoring operation switching means 132 executes the operation switching. Therefore, the monitoring control of the second monitoring control means 67 is automatically performed. Operation stops.

It is a figure which shows schematically the structure of the medical gas monitoring system 61 of one Embodiment of this invention. It is a figure which illustrates predetermined information. It is an image figure of the monitoring information output screen 80 displayed on LCD64. It is an image figure of the air supply pressure display screen 111 displayed on LCD64. It is an image figure of the shut-off valve operation display screen 121 displayed on LCD64. It is a figure which shows schematically the structure of the monitoring system 131 of 2nd Embodiment of this invention. It is the schematic which shows the structure of the monitoring apparatus 1 of a prior art.

Explanation of symbols

20 Medical gas supply system 21 Stationary liquid O ₂ tank 22, 23 Liquid O ₂ cylinder 24, 25 N ₂ gas cylinder 26 Compressor 27 Suction pump 30, 36 Automatic switching device 31, 37, 40, 41, 42 Control board 32, 33 Mass sensor 38, 39 Pressure sensor 43 Liquid level detection sensor 46, 47, 48, 49, 50 Supply piping 51 Hospital building 52 Shut-off valve 53 Terminal pressure sensor 61, 131 Medical gas monitoring system 62, 66 Storage means 63, 67 Monitoring control Means 64 LCD
65 Touch panel 71, 72, 73, 74, 75 Alarm lamp 76 Alarm buzzer 132 Monitoring operation switching means 133 Transmission means 134 Reception means

Claims (8)

Medical gas monitoring for monitoring the supply pressure of medical gas in a medical gas supply means for supplying medical gas, which is a gas used for medical treatment, and notifying the condition when the supply pressure of medical gas is equal to or lower than a predetermined value In the system,
Pressure detecting means for detecting an air supply pressure of medical gas delivered from the medical gas supply means;
Storage means for storing predetermined information;
A predetermined value related to the supply pressure of the medical gas is stored, a determination unit that determines whether or not a detection value by the pressure detection unit is equal to or less than a predetermined value, and a determination unit that outputs the determination result;
First monitoring control means for outputting a monitoring control signal in response to the output of the determination result by the determination means when the supply pressure of the medical gas is not more than a predetermined value;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the supply pressure of the medical gas is not more than a predetermined value;
A medical gas monitoring system comprising: second display means for displaying that the supply pressure of the medical gas is equal to or lower than a predetermined value in response to a monitoring control signal output from the second monitoring control means. In the medical gas monitoring system for monitoring the mass of medical gas in the medical gas supply means for supplying medical gas, which is a gas used for medical treatment, and notifying the state when the mass of the medical gas is equal to or less than a predetermined value,
Mass detection means for detecting the mass of medical gas stored in the medical gas supply means;
Storage means for storing predetermined information and determination means for storing a predetermined value relating to the mass of the medical gas, determining whether the detection value by the mass detection means is equal to or less than the predetermined value, and outputting the determination result When,
First monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the mass of the medical gas is equal to or less than a predetermined value;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control means for outputting a monitoring control signal in response to an output of a determination result by the determination means when the mass of the medical gas is equal to or less than a predetermined value;
A medical gas monitoring system comprising: second display means for displaying that the mass of the medical gas is equal to or less than a predetermined value in response to a monitoring control signal output from the second monitoring control means. In a medical gas monitoring system that monitors the operating state of a medical gas supply unit that supplies medical gas, which is a gas used for medical treatment, and notifies the abnormal operation when the medical gas supply unit has an abnormal operation,
An operation abnormality detection means for detecting an operation abnormality in the medical gas supply means;
Storage means for storing predetermined information;
Predetermined information related to medical gas operation abnormality is stored, and it is determined whether the detection output by the operation abnormality detection means matches the predetermined information, and a determination means for outputting the determination result;
A first monitoring control means for outputting a monitoring control signal when a detection output related to an operation abnormality of the medical gas supply means matches predetermined information;
In response to a monitoring control signal output from the first monitoring control means, a first display means for displaying predetermined information stored in the storage means;
Input means for inputting an operation instruction signal for operating the first monitoring control means to the first monitoring control means;
A second monitoring control unit that outputs a monitoring control signal in response to an output of a determination result by the determination unit when a detection output related to an operation abnormality of the medical gas supply unit matches predetermined information;
A medical gas monitoring system comprising: second display means for displaying that there is an operation abnormality in the medical gas supply means in response to a monitoring control signal output from the second monitoring control means. And further includes a monitoring operation switching means for switching the output operation of the monitoring control signal between the first monitoring control means and the second monitoring control means,
The monitoring operation switching means is
When the first monitoring control means stops operating, the second monitoring control means switches so that the operation starts, and when the first monitoring control means starts operating, the second monitoring control means switches so that the operation stops. The medical gas monitoring system according to any one of claims 1 to 3. The monitoring operation switching means is
A transmission means provided in the first monitoring control means for transmitting an operation detection signal indicating that the first monitoring control means is operating;
The medical gas monitoring system according to claim 4, further comprising: a receiving unit provided in the second monitoring control unit and receiving an operation detection signal transmitted from the transmitting unit. The predetermined information displayed on the first display means includes
The medical gas monitoring system according to any one of claims 1 to 5, including information on a coping method that is predetermined so as to correspond to at least the first monitoring control signal. The predetermined information stored in the storage means is
The medical gas monitoring system according to any one of claims 1 to 6, wherein the medical gas monitoring system can be rewritten by inputting information from an input means. The input means is
It is a touch panel provided on a 1st display means, The medical gas monitoring system as described in any one of Claims 1-7 characterized by the above-mentioned.

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