JP3058559U - Open / close monitoring device for medical gas shut-off valve - Google Patents

Abstract

(57) [Summary] (Modifications required) [Problem] To be able to collectively monitor the open / closed state of a shut-off valve, to be able to immediately know an operation error, a mischief, etc., and to prevent a serious fatal accident. To prevent. SOLUTION: A normally open shut-off valve 10 of a gas feed pipe 9 of a hospital.
The opening / closing detector 8 is attached to the device, wired so as to send a signal from the opening / closing detector 8, and the state of the opening / closing detector 8 is displayed on the display unit 2.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention consolidates the open / closed / normal / abnormal / working status of the shut-off valve provided in the gas delivery passage of medical gas such as oxygen and anesthetic gas to help patients treat and treat by inhaling them in the hospital. The present invention relates to a device for monitoring the opening and closing of a medical gas shut-off valve, which can be displayed and monitored to respond to abnormalities.

[0002]

[Prior art]

 Conventionally, shut-off valves are provided at a plurality of locations in a gas supply passage for medical gas in hospitals. At the time of construction in the hospital or repair / maintenance inspection of the gas feed passage, shut off the shut-off valve and stop the supply of medical gas only to the necessary parts, so that there is no obstacle to treatment and treatment Like that. This shut-off valve is often provided near the nurse station or in the corridor. For this reason, there was a risk that patients, visitors, and other hospital personnel could easily access the site. For this reason, if the shut-off valve is installed in a box or installed out of reach, the condition of each shut-off valve must be checked regularly, which makes inspection work extremely difficult. Had become something. In addition, there was a danger of forgetting to keep the shut-off valve open after construction, repairs and inspections. Misoperation or mischief of these shut-off valves could lead to serious and fatal accidents.

[0003]

[Problems to be solved by the invention]

 The problem to be solved by the present invention is to solve these problems, to collectively monitor the open / closed state of the shut-off valve, and to be able to immediately know operation mistakes and mischief, etc. An object of the present invention is to provide a medical gas shut-off valve opening / closing monitoring device capable of preventing a serious accident beforehand and promptly responding to an abnormal situation.

[0004]

[Means for Solving the Problems]

 The configuration of the present invention that solves such problems is as follows: 1) A normally open shut-off valve provided at a plurality of locations of a medical gas feed pipe provided in a hospital is provided with an open / close detector for detecting the open / closed state of each of the shut-off valves. A display unit is provided to collectively display the states of the open / close detectors, and the monitoring device for the opening / closing of the medical gas shut-off valve is wired to transmit the signal of the open / close detector to the display unit. The medical gas shut-off valve described in 1) above, further comprising an input unit for inputting that the operation is in progress, and inputting the input from the input unit to display on the display unit that the shut-off valve is in operation. 3) As a display unit, a normal lamp that lights up by the signal of the valve open / close detector for each shut-off valve and a working lamp that lights up or flashes during work are provided close to each other. The medical treatment according to the above 1) or 2) 4) As a display, a normal lamp that is lit by the signal of the valve open / close detector for each shut-off valve and a working lamp that is lit or blinking during work are placed close to each other. The medical gas shut-off valve opening / closing monitoring device according to the above 1) or 2), wherein the normal lamp flashes during the operation while the valve is open. 5) The shut-off valve is a display unit. An open / close monitoring device for a medical gas shut-off valve according to any one of the above 1) to 4), which has a structure provided with an abnormal lamp that blinks in response to a signal from the open / close detector when the switch is not open 6) Each shut-off valve as a display unit Each time the normal lamp that is lit by the signal of the open / closed detector in the valve open state, the working lamp that is lit or blinking during work, and the abnormal lamp that blinks by the signal of the open / closed detector when the valve is not open are close to each other. During operation and abnormal lamps 7) The medical gas shut-off valve opening / closing monitoring device described in 1) or 2) above, which is turned off. 7) The above 5) or 6) above which is provided with a sounding buzzer that operates simultaneously when the abnormal lamp flashes. 8) A medical gas shut-off valve opening / closing monitoring device 8) The medical gas shut-off valve opening / closing monitoring device according to any one of 2) to 7), wherein the input unit and the display unit are integrated in one centralized control room in the hospital. Equipment.

[0005]

[Function] In the present invention, an open / close detector that detects the open / closed state is attached to each of the medical gas shut-off valves that are normally used in the hospital. The open / closed state of the shut-off valve detected by the open / close detector is transmitted as a signal through the wiring and transmitted to the display unit that displays the data collectively. By monitoring this display, the state of many shutoff valves can be monitored. An input section for inputting that the shutoff valve is in operation is provided, and the display section indicates that the work is in progress. Can be. If the normal lamp and the working lamp are provided close to each other as a display part, the lamp is judged to be abnormal when both the normal lamp and the working lamp are off, and otherwise judged to be normal and shut off. At a glance, you can see if the valve status is normal or abnormal. When the normal lamp and the working lamp are provided close to each other as a display part, and the normal lamp blinks during the work when the valve is open, it is normal that the shut-off valve is open during the work. Prominently signal by flashing lamp. If an abnormality lamp is provided as a display unit, if an abnormality occurs in the shut-off valve, it is possible to immediately identify where the abnormality occurred. If the display unit is provided with a normal lamp, a working lamp, and an abnormal lamp, the abnormal lamp does not blink due to the operation of the worker during the operation, etc. At a glance. Those that have a ringing buzzer will surely notify that an abnormality has occurred. A centralized control room in a hospital with an input unit and a display unit integrated enables monitoring of the shut-off valve in the hospital at one location, and can also be performed at one location when performing work.

[0006]

[Embodiment of the invention]

 Medical gases include oxygen and anesthetic gases, and any gas used for patient treatment or treatment can be used. Open / close detectors include those that turn on when the shut-off valve is no longer in the normally open position, those that detect the position of the valve body of the shut-off valve and the movement of members that move in conjunction with the valve, and those that detect the downstream of the shut-off valve. There are those that measure the flow velocity of the gas feed pipe, etc., and it is desirable to use one that is reliable, can be used for a long time and is inexpensive. Some display units display lights such as lamps indicating normal / abnormal / work in progress, LCDs and displays, etc., and it is desirable that the status of many shut-off valves can be seen at a glance. The display unit and the input unit may be integrated so that the input button is a lamp. A CPU for logically processing the signal of the open / close detector of the shut-off valve may be provided on the display unit or outside the display unit.

[0007]

【Example】

 Embodiments of the present invention will be specifically described with reference to the drawings. In the embodiment shown in FIGS. 1 to 5, an on-off detector is attached to each of the medical gas shut-off valves in the hospital, and a display unit for displaying a signal from the on-off detector is provided for each shut-off valve. A normal lamp that is lit by the detector signal, an inspection lamp that is used as a working lamp that is lit when work is being performed, and a warning lamp that is used as a fault lamp that flashes by the signal of the open / closed detector when the valve is not open. An input section for inputting that the shut-off valve is in operation is provided in close proximity, a central control room is provided on the first floor of a three-story hospital, and the input section and display section are integrated in a central control room. It is an example of an opening / closing monitoring device of a shutoff valve for use gas. FIG. 1 is an explanatory diagram of a display unit of the apparatus for monitoring the opening and closing of a medical gas shut-off valve according to an embodiment. FIG. 2 is a schematic view of the medical gas shut-off valve opening / closing monitoring device according to the embodiment. FIG. 3 is an explanatory diagram showing a processing flow of the apparatus for monitoring the opening and closing of a medical gas shut-off valve according to the embodiment. FIG. 4 is a plan view showing a state in which an open / close detector is attached to the shut-off valve of the medical gas shut-off valve opening / closing monitoring device of the embodiment. FIG. 5 is a sectional view taken along line AA of FIG. FIG. 6 is an explanatory view showing the state of each lamp on the display unit of the apparatus for monitoring the opening and closing of a medical gas shut-off valve according to the embodiment. In the figure, 1 is a device for monitoring the opening / closing of a shut-off valve for medical gas, 2 is a display unit, 2a is a normal lamp, 2b is a warning lamp, 2c is a lamp under inspection, 2d is a symbol indicating a shut-off valve, and 2e is a gas symbol indicating a shut-off valve. Graphic symbol indicating feed pipe, 2f is main valve, 2g is buzzer lamp, 2h is buzzer stop lamp, 3 is input section, 4 is CPU, 5 is ROM, 6 is RAM, 7 is interface, and 8 is open / close detection 8a is an open / close detector body, 8b is a switch part, 8c is a leaf spring, 8d is a conductive wire, 8e is a mounting plate, 8f is a contact, 9 is a gas feed pipe, 10 is a shutoff valve, and 10a is a shutoff valve. The lever 11 is a cover. In the embodiment, as shown in FIGS. 1 to 4, medical gas is sent to a hospital room, operating room, treatment room, or the like. The medical gas is sent from a medical gas supply device to a hospital room, an operating room, a treatment room, and the like by a gas feed pipe 2e. A main valve 2f is provided in the middle of the gas feed pipe 2e close to the medical gas supply device. Shut-off valves 2d and 10 are provided in the gas feed pipe 2e before entering the hospital room, operating room, treatment room, and the like. As shown in FIG. 4, the shut-off valve 10 is a valve for manually opening and closing a valve inside the gas feed pipe 9 by a lever 10a. The shut-off valve 10 is housed in a box-shaped cover 11. A mounting plate 8e is provided inside the cover 11 of the shut-off valve 10, and the open / close detector main body 8a is mounted on the mounting plate 8e with screws. A switch section 8b is provided on the lever 10a side of the open / close detector main body 8a. Further, a leaf spring 8c extending obliquely upward is provided on the lever 10 side of the switch portion 8b, and a contact 8f is provided at the tip of the leaf spring 8c. Further, the mounting plate 8e is provided with two holes, and penetrates the conductive wire 8d of the open / close detector main body 8a. One of the two conductive wires 8d is connected to the leaf spring 8c and the other is connected to the switch portion 8b. Therefore, the two conductive wires 8d are conductive when the leaf spring 8c is in contact with the switch portion 8b, and are not conductive when the leaf spring 8c is not in contact with the switch portion 8b. In the embodiment, the open / close detectors are attached to all the shutoff valves in the hospital in this manner. The two conductive wires 8d of each of the open / close detectors are wired toward the central control room provided in the hospital, and are connected to the interface 7 of the central control room as shown in FIG. The interface 7 is connected to the CPU 4 provided in the central control room. The ROM 4, the RAM 6, the input unit 3, and the display unit 2 are connected to the CPU 4. The input unit 3 is provided with an input switch for sending a signal to the CPU 4 as to which of the shut-off valves is in operation when performing operations such as repair and inspection. As shown in FIG. 1, the display unit 2 has a layout diagram showing whether or not a shut-off valve is provided for each medical gas pipe on each floor. A normal lamp 2a is provided beside each shut-off valve 2d. , A warning lamp 2b, and a lamp under inspection 2c are provided close to each other. In addition, a buzzer lamp 2g and a buzzer stop lamp 2h are provided at the upper left of the display unit 2. Lighting or blinking of each lamp is controlled by the CPU 4. The display unit shown in Fig. 1 is installed on the first floor of the hospital. The main valve 2f for medical gas is always open, and all the shutoff valves 2d and 10 in the hospital are always open. Therefore, medical gas from the medical gas supply device can be taken out of the hospital whenever necessary. When the shut-off valve opening / closing monitoring device 1 of the embodiment is started, the lever 10a of the shut-off valve 10 is in the fully open position as shown in FIGS. As a result, the leaf spring 8c having the contact 8f attached to the tip bends to contact the switch portion b, and the two conductive wires 8d wired to the open / close detector 8 are energized. This energization signal is transmitted to the interface of the central control room, and transmitted from the interface 7 to the CPU 4. The transmitted signal is processed in the CPU 4 as shown in FIG. In this case, it is determined from the energization signal transmitted from the open / close detector 8 that the shut-off valve is open, and the normal lamp 2a of the display unit 2 is turned on. Such processing is performed for each shut-off valve 10, and each normal lamp 2a on the display unit is turned on. The supervisor in the central control room sees the display unit 2 to check in a timely manner that the shut-off valves 10 on each floor are in the normal fully opened state. If the shut-off valve 10 is not fully opened from this state for some reason, the lever 10a of the contact 8f of the open / close detector 8 will not be pushed, and the leaf spring 8c will be separated from the switch 8b. Then, the two conducting wires 8d wired to the open / close detector 8 do not conduct, and the conduction signal cannot be transmitted to the interface. In the processing flow shown in FIG. 3, it is first determined in the CPU whether maintenance is being performed. Next, it is determined whether the shutoff valve is fully opened. Since the shut-off valve 10 is not fully opened and the energization signal is not transmitted to the CPU 4 via the interface, it is determined that the shut-off valve 10 is not fully opened, and the buzzer lamp 2g of the display unit 2 lights up, Sounds. At the same time, the normal lamp provided beside the indication of the corresponding shut-off valve on the display unit 2 goes out, and the warning lamp 2b flashes. The buzzer surely indicates that the abnormality has occurred, and the blinker of the warning lamp 2b can know which shut-off valve has caused the abnormality. Therefore, the observer or the worker is immediately sent to the place, and the shut-off valve 10 is opened by operating the lever 10a of the shut-off valve 10. Press the buzzer stop lamp 2h to turn off the buzzer and stop the buzzer. When the shutoff valve is opened, an energization signal is sent from the open / close detector 8 to the CPU 4 again. When this signal is received, the warning lamp 2b is turned off, and the normal lamp is turned on again. When performing maintenance and inspection on the shut-off valve, notify the supervisor in the central control room that the worker will perform the work immediately before performing the work. The observer operates the input unit 3 to input that the corresponding shut-off valve is working. The input signal is transmitted to the CPU 4, this information is held, and the lamp 2 c of the display unit 2 blinks during inspection of the corresponding shut-off valve. Thereafter, if the worker temporarily closes the shut-off valve for maintenance and inspection from the fully open state, the energization signal is not sent from the open / close detector 8 to the CPU 4, so it is determined that the shut-off valve 8 is not fully open. Since a signal indicating that maintenance is being performed is received from Part 3, the buzzer does not sound and the warning lamp does not blink. When the operator fully opens the shut-off valve during the maintenance check, the normal lamp 2a blinks. In this way, the observer can know the movement of the shut-off valve even while working in the central control room. When maintenance has been completed, the operator shall notify the supervisor that maintenance has been completed, and fully open the shut-off valve. Upon receiving the notification, the supervisor inputs from the input unit 3 that maintenance has been completed, sends a signal, and turns off the inspection lamp 2c. Thereafter, if the operator has fully opened the shut-off valve, the CPU 4 receives an energizing signal from the open / close detector 8 and turns on the normal lamp 2a of the display unit 2 again. If the operator forgets to fully open the shut-off valve, it is determined that an abnormality has occurred, the buzzer lamp 2g lights, the buzzer sounds, and the warning lamp 2b flashes. As a result, it is immediately apparent that the return error occurred after the inspection by the observer. Therefore, it is possible to return to normal immediately after contacting the worker. If the worker forgets to notify the end of the work, the monitoring lamp 2c and the normal lamp 2a are blinking and conspicuous, so that the observer notices it. . In this way, the blinking of the two lamps can reliably communicate to the observer. As described above, in the embodiment, the state of the shutoff valve in the hospital can be collectively monitored on one display unit. Therefore, when the shut-off valve is not fully opened due to an operation error or mischief, etc., it is possible to know immediately and to respond promptly by contacting immediately. Further, since there is no need to visually check each shutoff valve, the shutoff valve can be covered with a cover as in the present embodiment to prevent mischief and the like. With these measures, it is possible to prevent a serious and fatal accident of the supply of medical gas from being stopped. The input unit and the display unit may be integrated using a lamp switch or the like that can be turned on and off by pressing a lamp. Depending on the necessity, only normal lamps and working lamps, or only abnormal lamps may be used. In addition, when the shut-off valve is fully opened during inspection, the normal lamp may be turned on without blinking, and the inspection lamp may be turned on without blinking.

[0008]

[Effect of the invention]

 According to the present invention, the open / closed state of the shut-off valve can be collectively monitored, operation errors and mischief can be prevented and immediately known, and serious fatal accidents can be prevented beforehand, and abnormalities can be prevented. It is possible to provide a shut-off valve opening / closing monitoring device capable of promptly responding to a situation. An input unit for inputting that the shut-off valve is in operation is provided, and the display that the work is in progress is displayed on the display unit, so that the operator can immediately know which shut-off valve is in operation by the display unit. If the shut-off valve is closed during the operation, it is immediately recognized that it is not abnormal so that it can be surely monitored. If the normal lamp and the working lamp are provided close to each other as a display unit, the status of the shut-off valve can be understood so as to respond to abnormalities. If the normal lamp and the working lamp are provided close to each other as a display part and the normal lamp blinks while the valve is open and the work is in progress, the status of the shut-off valve can be clearly understood so Be prepared to respond. If an abnormality lamp is provided as a display unit, the abnormality of the shut-off valve can be immediately recognized, and the abnormality can be dealt with more reliably and promptly. In the case where the normal lamp, the working lamp and the abnormal lamp are provided as indicators, the status of the shut-off valve can be immediately grasped by the combination of the three lamps, so that appropriate measures can be taken promptly. Those that have a sounding buzzer can reliably communicate that an abnormality has occurred by blinking the abnormal lamp and sounding the buzzer. The centralized control room in the hospital, where the input unit and the display unit are integrated, enables efficient monitoring and prompt response to any abnormalities.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a display unit of a device for monitoring the opening and closing of a shutoff valve according to an embodiment.

FIG. 2 is a schematic view of a shut-off valve opening / closing monitoring device according to an embodiment.

FIG. 3 is an explanatory diagram showing a processing flow of the shut-off valve opening / closing monitoring device of the embodiment.

FIG. 4 is a plan view showing a state where an open / close detector is attached to the shut-off valve of the shut-off valve opening / closing monitoring device of the embodiment.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

FIG. 6 is an explanatory diagram showing the state of each lamp on the display unit of the medical gas shut-off valve opening / closing monitoring device of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 Open / close monitoring device of shut-off valve 2 Display unit 2a Normal lamp 2b Warning lamp 2c Lamp under inspection 2d Symbol indicating shut-off valve 2e Symbol indicating gas feed pipe 2f Main valve 2g Buzzer lamp 2h Buzzer stop lamp 3 Input unit 4 CPU Reference Signs List 5 ROM 6 RAM 7 Interface 8 Open / close detector 8a Open / close detector main body 8b Switch section 8c Leaf spring 8d Conductive wire 8e Mounting plate 8f Contact 9 Gas feed pipe 10 Shut-off valve 10a Shut-off valve lever 11 Cover

Claims (8)

[Utility model registration claims] An open / close detector for detecting the open / close state of each of normally open shut-off valves provided at a plurality of locations of a medical gas feed pipe provided in a hospital, and the state of each of the open / close detectors is provided. And a monitoring unit for monitoring the opening and closing of the medical gas shut-off valve, which is provided with a display unit that collectively displays the signals and transmits the signals of the open / close detector to the display unit. 2. An input unit for inputting that the shut-off valve is in operation, and an input from the input unit to display on the display unit that the shut-off valve is in operation.
The opening / closing monitoring device for a medical gas shut-off valve as described in the above. 3. A structure in which a normal lamp which is lit by a signal of a valve open / close detector for each shut-off valve and a working lamp which is lit or blinks when the work is being provided are provided close to each other as a display unit. Item 3. An apparatus for monitoring the opening and closing of a medical gas shut-off valve according to item 1 or 2. 4. A normal lamp which is lit by a signal from a valve open / close detector for each shut-off valve and a working lamp which is lit or blinks during operation are provided close to each other as a display unit. 3. The apparatus for monitoring the opening and closing of a medical gas shut-off valve according to claim 1, wherein the normal lamp blinks while the work is being performed. 5. The opening / closing of a medical gas shut-off valve according to claim 1, wherein an abnormal lamp which blinks in response to a signal of an open / close detector when the shut-off valve is not open is provided as a display unit. Monitoring device. 6. A normal lamp which is lit by a signal of an open / closed detector in a valve open state for each shut-off valve, a working lamp which is lit or flashes when a work is being performed, and an open / closed detection in a state where the valve is not open for each shutoff valve. 3. The opening / closing monitoring apparatus for a medical gas shut-off valve according to claim 1, wherein an abnormal lamp that blinks in response to a signal from the vessel is provided close to the abnormal lamp, and the abnormal lamp is turned off during operation. 7. The medical gas shut-off valve opening / closing monitoring device according to claim 5, further comprising a sounding buzzer that operates simultaneously when the abnormal lamp blinks. 8. The medical gas shut-off valve opening / closing monitoring device according to claim 2, wherein the input unit and the display unit are integrated in one centralized control room in the hospital.