CN102114289B - Automatic gas source switching device - Google Patents
Automatic gas source switching device Download PDFInfo
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- CN102114289B CN102114289B CN200910217586.6A CN200910217586A CN102114289B CN 102114289 B CN102114289 B CN 102114289B CN 200910217586 A CN200910217586 A CN 200910217586A CN 102114289 B CN102114289 B CN 102114289B
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Abstract
The invention provides an automatic gas source switching device which comprises a gas inlet valve, a pressure collector, a compressor and a respirator, wherein the gas inlet valve comprises a valve body; a gas inlet channel of a centralized gas source, the gas inlet channel of the compressor and a gas outlet channel of the respirator are arranged in the valve body; the gas inlet channel of the centralized gas source, the gas inlet channel of the compressor and the gas outlet channel of the respirator are converged in a mixing cavity of the valve body; the pressure collector is connected on the valve body and used for collecting pressure signals in the mixing cavity and feeding back the pressure signals to the respirator; a joint of the respirator is connected with the respirator, and a gas inlet joint of the compressor is connected with the compressor; and a main board of the respirator is used for controlling the startup and the stop of the compressor according to the signals which are fed back by the pressure collector. The automatic gas source switching device can enable the respirator to be more stable during the use by automatically switching between the centralized gas source and a compressor gas source, and the manual switching is unnecessary, thereby reducing manpower and material resources, improving the safety of treatment and reducing the suffering of a patient.
Description
Technical field
The present invention relates to medical instruments field, more specifically, relate to a kind of automatic gas source switching device.
Background technology
At present, generally, in ICU ward, respirator is indispensable equipment, striving for quality time, the critical moment of saving critical patient's life, plays irreplaceable effect.And respirator, as its name suggests, assisted respiartion is used, and air is indispensable.In use, first-selected use concentrated gas source feed, but when gas source feed deficiency, cannot meet the instructions for use of respirator time, respirator meeting alarm, requires doctor or nurse to process in time.General operation is that the air inlet pipeline of respirator is switched on the air compressor of outfit, emergent use, but need personnel to get involved manual switchover, and air inlet pipeline is pulled out from central gas supply source of the gas, then be inserted on air compressor, then open compressor.But this process generally need be used a period of time, very not timely, the anoxia that can make to die in patient's short time, brings misery to patient, even brings danger.When central gas supply source of the gas recovers air feed, need again manually to gain, waste time and energy.
Summary of the invention
The present invention aims to provide a kind of automatic gas source switching device, can solve existing respirator in use, manually carry out gas circuit switching not in time, the problem such as inconvenient.
According to an aspect of the present invention, provide a kind of automatic gas source switching device, having comprised: intake valve, pressure acquisition device, compressor, respirator;
Intake valve comprises valve body; In valve body, there is concentrated air-source inflow passage, compressor inlet channel, respirator outlet passageway; Concentrate air-source inflow passage, compressor inlet channel, respirator outlet passageway to come together in the hybrid chamber of valve body;
Concentrate air-source inflow passage to be provided with the concentrated air-source inflow joint being connected with valve body;
Compressor inlet channel is provided with the compressor inlet suction port being connected with valve body;
Respirator outlet passageway is provided with adaptor, plays pneumatic element, the breathing machine connector of decompressing effect; Valve body, adaptor, pneumatic element, breathing machine connector connect successively;
Pressure acquisition device is connected on valve body, for gathering pressure signal in hybrid chamber and to respirator feedback pressure signal;
Breathing machine connector is connected with respirator, and compressor inlet suction port is connected with compressor;
The mainboard of respirator is according to the startup of the feedback signal control compressor of pressure acquisition device and stop.
Preferably, pressure acquisition device is electrically connected to respirator feedback pressure signal with the mainboard of respirator by wire.
Preferably, the mainboard of respirator and compressor are electrically connected to fetch by connecting line and control the startup of compressor and stop.
Preferably, intake valve also comprises: be successively set on strainer valve, the first check valve concentrated on air-source inflow passage, strainer valve, the first check valve are arranged on to be concentrated between air-source inflow joint and hybrid chamber.
Preferably, intake valve also comprises: be arranged on the second check valve on compressor inlet channel, the second check valve is arranged between compressor inlet suction port and hybrid chamber.
Preferably, automatic gas source switching device, also comprises: be fixed on the breathing machine connector on respirator, breathing machine connector supports the gentle moving element of valve body.
Preferably, pneumatic element is air relief valve.
Preferably, automatic gas source switching device, also comprises: sealing ring, is arranged between the first check valve and valve body.
Because concentrated air-source inflow passage, compressor inlet channel, respirator outlet passageway in valve body come together in the hybrid chamber of valve body; Pressure acquisition device is connected on valve body, for gathering pressure signal in hybrid chamber and to respirator feedback pressure signal; The mainboard of respirator is according to the startup of the feedback signal control compressor of pressure acquisition device and stop, so, the present invention can realize source of the gas concentrate gas source feed and compressor gas supplied between automatic switchover, can solve existing respirator in use, manually carry out gas circuit switching not in time, the problem such as inconvenient, stability and safety more while making Use of respirator, and needn't manually go again to switch, reduce manpower and materials, won valuable therapeutic time.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the operation principle block diagram of the automatic gas source switching device of the embodiment of the present invention;
Fig. 2 has schematically shown the structure of the automatic gas source switching device of the embodiment of the present invention, wherein, has saved compressor and respirator.
The specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Fig. 1 and Fig. 2 have schematically shown principle and the structure of the automatic gas source switching device of the embodiment of the present invention.The present invention can be for being furnished with the ICU ward of concentrating gas source feed on air compressor and wall.As shown in the figure, according to a kind of automatic gas source switching device of the embodiment of the present invention, comprise: intake valve 2, pressure acquisition device 4, compressor (do not illustrate separately in Fig. 2, it is connected with compressor inlet suction port 8), respirator (do not illustrate separately in Fig. 2, it is connected with breathing machine connector 11);
Concentrate air-source inflow passage to be provided with the concentrated air-source inflow joint 1 being connected with valve body 20, like this, concentrate air-source inflow passage to be connected with concentrated source of the gas, concentrate source of the gas to concentrated air-source inflow passage air feed;
Compressor inlet channel is provided with the compressor inlet suction port 8 being connected with valve body 20, and like this, compressor inlet channel is connected with compressor, and compressor is to compressor inlet channel air feed; Compressor inlet suction port 8 is connected with compressor;
Respirator outlet passageway is the passage to respirator air feed, and respirator outlet passageway is provided with adaptor 9, plays pneumatic element 5, the breathing machine connector 11 of decompressing effect; Adaptor 9 plays the effect that turns connection; Pneumatic element 5 plays decompressing effect, and to guarantee providing to respirator the low-pressure air that meets use, valve body 20, adaptor 9, pneumatic element 5, breathing machine connector 11 connect successively; Breathing machine connector 11 is connected with respirator,
The mainboard (having CPU on it) of respirator is according to the startup of the feedback signal control compressor of pressure acquisition device 4 and stop.Pressure acquisition device 4 utilizes by wire and is electrically connected to respirator feedback pressure signal with the mainboard of respirator, certainly, and can also be by the mode of wireless transmission to respirator feedback pressure signal.Preferably, the mainboard of respirator and compressor are electrically connected to fetch by connecting line and control the startup of compressor and stop, and certainly, also can be controlled the startup of compressor and be stopped by the mode of controlled in wireless.
Preferably, intake valve 2 also comprises: be successively set on strainer valve 26, the first check valve 27 concentrated on air-source inflow passage, strainer valve 26, the first check valve 27 are arranged on to be concentrated between air-source inflow joint 1 and hybrid chamber 201.The direction of the first check valve 27 as shown in Figure 1, plays the effect of one-way conduction, prevents that gas is through this path gas leakage.Strainer valve 26 plays the effect of Purge gas.
Preferably, intake valve 2 also comprises: be arranged on the second check valve 87 on compressor inlet channel, to prevent that gas is through this path gas leakage; The second check valve 87 is arranged between compressor inlet suction port 8 and hybrid chamber 201.Certainly, strainer valve also can be set with Purge gas on compressor inlet channel.
Preferably, automatic gas source switching device, also comprise: be fixed on the breathing machine connector 11 on respirator, breathing machine connector 11 supports valve body 20 and pneumatic element 5, breathing machine connector 11 can weld with valve body 20 and pneumatic element 5, is spirally connected, clamping is installed together, and can weld, be spirally connected, clamping is arranged on respirator.As for adopting concrete suitable method, select according to practical situation.
Preferably, pneumatic element 5 is air relief valve, like this, is convenient to make, and is convenient to processing or buys, and can realize preferably decompressing effect.
Preferably, automatic gas source switching device, also comprises: sealing ring 3, is arranged between the first check valve 27 and valve body 20, to realize sealing function.
The pressure acquisition device 4 using in the Shingrila590 respirator that the above embodiments of the present invention for example can adopt Beijing Yian Medical System Co., Ltd. to produce, the ARM10F air relief valve of SMC manufacturer production, Beijing Yian Medical System Co., Ltd. produce the MC340 air compressor of (or design, use), certainly, the invention is not restricted to the parts of above-mentioned model, can also adopt above-mentioned each parts of other models.
Introduce following operation principle of the present invention and process below: the present invention solves emphatically, the air problem that source of the gas switches before entering breathing circuit.Concentrate source of the gas and air compressor that air lasting, that have certain pressure scope all can be provided, in Use of respirator process, first-selected use concentrated source of the gas, its schematic diagram is as Fig. 1, air is by after concentrating source of the gas out, first pass through filter (being for example strainer valve 26), filter out the impurity in gas, first check valve 27 of flowing through again, its objective is and prevent from using when compressor gas supplied, gas, through this path gas leakage (the second check valve 87 after compressor is also like this), enters the air-breathing loop of respirator subsequently.
The gas outlet of air compressor is not connected to the air inlet of respirator, but is directly fixed between the first check valve 26 and the air-breathing loop of respirator of concentrating source of the gas, is connected with hybrid chamber 201.Have a pressure acquisition device 4 herein, the moment is being monitored the bleed pressure value at hybrid chamber 201 places, and gives in real time " brain "---the central processing unit feedback signal on mainboard of respirator.The air pressure scope of respirator in the time of normal use is 200KPa～280KPa, the signal feeding back to according to harvester 4, and whether judgement is concentrated gas source feed to meet and is used.When concentrated source of the gas gas pressure is during lower than 200KPa, respirator mainboard thinks that concentrated bleed pressure is low, for QI-insufficiency, respirator can be controlled air compressor starting, start working, for respirator provides lasting air, at this according to respirator needs, the output pressure that presets compressor is now 250KPa, with the normal use of the machine of ensuring respiration.If the alarm device that respirator is provided with acousto-optic and deposits, so, respirator meeting acousto-optic the alarm of depositing also controlled air compressor starting, reminds doctor or nurse to note.
When the gas pressure numerical value collecting is during higher than 280KPa, respirator mainboard thinks that again central gas supply source of the gas provides the air of being satisfied with use, and now close compressor continues to use and concentrates gas source feed.Intelligence is switched source of the gas and has been switched, and this process gets involved without personnel, time saving and energy saving, and provide timely and meet the air using, make patient in the time using respirator, can accomplish to breathe without pausing, the natural transition of switching, but also can in the time switching, point out, remind doctor or nurse to note.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
Utilize the present invention, in Use of respirator process, concentrate source of the gas to die suddenly or air pressure during lower than instructions for use as run into, the central processing unit control air compressor of respirator starts automatically, is respirator air feed; In the time that pressure acquisition device detects that central gas supply source of the gas recovers air feed, air compressor cuts out automatically.Concentrate source of the gas and compressor source of the gas by automatically switching, more stable while making Use of respirator, and needn't manually go again to switch, reduce manpower and materials, increase the safety for the treatment of, reduce patient's misery.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. an automatic gas source switching device, is characterized in that, comprising:
Intake valve (2), pressure acquisition device (4), compressor, respirator;
Described intake valve (2) comprises valve body (20); In described valve body (20), there is concentrated air-source inflow passage, compressor inlet channel, respirator outlet passageway; Described concentrated air-source inflow passage, described compressor inlet channel, described respirator outlet passageway come together in the hybrid chamber (201) of described valve body (20);
Described concentrated air-source inflow passage is provided with the concentrated air-source inflow joint (1) being connected with described valve body (20);
Described compressor inlet channel is provided with the compressor inlet suction port (8) being connected with described valve body (20);
Described respirator outlet passageway is provided with adaptor (9), plays pneumatic element (5), the breathing machine connector (11) of decompressing effect; Described valve body (20), described adaptor (9), described pneumatic element (5), described breathing machine connector (11) connect successively;
It is upper that described pressure acquisition device (4) is connected to described valve body (20), for gathering the pressure signal in described hybrid chamber (201) and feeding back described pressure signal to described respirator;
Described breathing machine connector (11) is connected with described respirator, and described compressor inlet suction port (8) is connected with described compressor;
The mainboard of described respirator is according to the startup of compressor described in the feedback signal control of described pressure acquisition device (4) and stop.
2. automatic gas source switching device according to claim 1, is characterized in that,
Described pressure acquisition device (4) is electrically connected to described respirator and feeds back described pressure signal with the mainboard of described respirator by wire.
3. automatic gas source switching device according to claim 1, is characterized in that,
The mainboard of described respirator and described compressor are electrically connected to fetch by connecting line and control the startup of described compressor and stop.
4. automatic gas source switching device according to claim 1, is characterized in that,
Described intake valve (2) also comprises: be successively set on strainer valve (26), the first check valve (27) on described concentrated air-source inflow passage, described strainer valve (26), described the first check valve (27) are arranged between described concentrated air-source inflow joint (1) and described hybrid chamber (201).
5. automatic gas source switching device according to claim 1, is characterized in that,
Described intake valve (2) also comprises: be arranged on the second check valve (87) on described compressor inlet channel, described the second check valve (87) is arranged between described compressor inlet suction port (8) and described hybrid chamber (201).
6. automatic gas source switching device according to claim 1, is characterized in that,
Described breathing machine connector (11) is fixed on described respirator, and described breathing machine connector (11) supports described valve body (20) and described pneumatic element.
7. automatic gas source switching device according to claim 1, is characterized in that,
Described pneumatic element (5) is air relief valve.
8. automatic gas source switching device according to claim 4, is characterized in that,
Also comprise: sealing ring (3), is arranged between described the first check valve (27) and described valve body (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217586.6A CN102114289B (en) | 2009-12-31 | 2009-12-31 | Automatic gas source switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217586.6A CN102114289B (en) | 2009-12-31 | 2009-12-31 | Automatic gas source switching device |
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| CN102114289A CN102114289A (en) | 2011-07-06 |
| CN102114289B true CN102114289B (en) | 2014-06-11 |
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| CN200910217586.6A Active CN102114289B (en) | 2009-12-31 | 2009-12-31 | Automatic gas source switching device |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182143B (en) | 2011-12-30 | 2015-09-30 | 北京谊安医疗系统股份有限公司 | Tourie shunting device |
| CN105536113B (en) * | 2015-12-23 | 2017-08-04 | 英华融泰医疗科技股份有限公司 | With relief valve and can the flowmeter that mutually switches of oxygen-absorption atomizing |
| US10369320B2 (en) * | 2016-01-21 | 2019-08-06 | Breathe Technologies, Inc. | Modular ventilation system |
| CN109481803B (en) * | 2017-09-13 | 2022-02-11 | 深圳迈瑞生物医疗电子股份有限公司 | Electric breathing module and breathing machine |
| EP3682930B1 (en) | 2017-09-13 | 2022-11-02 | Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | Ventilator for gas supply control |
| CN109350813A (en) * | 2018-12-04 | 2019-02-19 | 中屾医疗科技（深圳）有限公司 | A kind of device with intelligence switching ventilating mode |
| DE102019005014A1 (en) * | 2019-07-19 | 2021-01-21 | Drägerwerk AG & Co. KGaA | Supply system, actuation unit and method for operating a supply system |
| CN117815503A (en) * | 2023-02-14 | 2024-04-05 | 杨红晓 | Anesthetic mask convenient to switch air supply and prevent leaking |
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Patent Citations (4)
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| CN2147415Y (en) * | 1993-03-25 | 1993-11-24 | 张傲义 | Multi-kind air source automatic distributing combined device |
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| CN102114289A (en) | 2011-07-06 |
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