CN102371016B - Positive end expiratory pressure (PEEP) safety protection system and method thereof - Google Patents
Positive end expiratory pressure (PEEP) safety protection system and method thereof Download PDFInfo
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- CN102371016B CN102371016B CN201110302268.7A CN201110302268A CN102371016B CN 102371016 B CN102371016 B CN 102371016B CN 201110302268 A CN201110302268 A CN 201110302268A CN 102371016 B CN102371016 B CN 102371016B
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- peep
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- solenoid
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Abstract
The invention relates to a positive end expiratory pressure (PEEP) safety protection system and a method thereof. The system comprises a breathing machine, a PEEP valve, a proportional solenoid, a safety solenoid, a PEEP pressure collection unit and a processor, wherein the proportional solenoid and the safety solenoid are arranged on a controlling air passage of the PEEP valve; the method comprises the following steps: detecting the PEEP pressure by utilizing a pressure sensor; opening the safety solenoid if the PEEP pressure is within a normal range, and conducting the connection between the pneumatic control end of the PEEP valve and an air source; and closing the safety solenoid if the PEEP pressure exceeds the highest threshold, and cutting off the connection between the pneumatic control end of the PEEP valve and the air source. According to the safety protection system and the method thereof, the control is accurate, and the positive end expiratory pressure is continuous and adjustable; and moreover, the loss of the air source can be reduced.
Description
Technical field
The present invention relates to medical electronics, be specifically related to one and be applied to end expiratory positive pressure in respirator system (PEEP) safety device.
Background technology
PEEP is end expiratory positive pressure, and in the time of end-tidal airway open, airway pressure is still kept above atmospheric pressure, to prevent that alveolar atrophy from subsiding.In the time that PEEP increases extremely, the required acting of patient exhales increases and causes expiratory dyspnea, may cause asphyxiation hazard and work of breathing to increase.At present, the mechanical type end expiratory positive pressure control mode of Use of respirator, can not accurately control it and exhale last pressure and the end expiratory positive pressure cannot be adjustable continuously, safety coefficient deficiency, and air consumption is high simultaneously.
Summary of the invention
The technical issues that need to address of the present invention are, how a kind of PEEP security protection system and method thereof are provided, and precise control, safety coefficient is higher and air consumption is low.
Above-mentioned first technical problem of the present invention solves like this: build a kind of PEEP security protection system, the PEEP valve that comprises respirator and be communicated with its oxygen service, also comprises:
Proportional solenoid, is communicated with the pneumatic control end gas circuit of described PEEP valve, for adjusting PEEP valve pressure;
Security solenoid valve, is communicated with described proportional solenoid gas circuit, for cutting off or conducting proportional solenoid source of the gas;
PEEP pressure acquisition unit, for detection of end expiratory positive pressure;
Processor, is electrically connected described proportional solenoid, security solenoid valve and PEEP pressure acquisition unit, opening/closing for selecting to control described security solenoid valve according to the size of described end expiratory positive pressure, or adjusts the size of current of described proportional solenoid.
According to security protection system provided by the invention, described PEEP pressure acquisition unit is arranged on the pressure transducer on the breathing pipeline that is communicated with user and described PEEP valve.
According to security protection system provided by the invention, also comprise the vapour lock being communicated with the pneumatic control end gas circuit of described PEEP valve, the described vapour lock other end is externally communicated with.
Above-mentioned another technical problem of the present invention solves like this: build a kind of PEEP safety protecting method, comprise the following steps:
Utilize the pressure transducer on the breathing pipeline that is communicated with PEEP valve and user to detect end expiratory positive pressure;
If described end expiratory positive pressure, lower than minimum threshold, is opened security solenoid valve, conducting control gas circuit, make the pneumatic control end of described PEEP valve and being communicated with of source of the gas;
If described end expiratory positive pressure exceedes high threshold, close or select closed safe electromagnetic valve, turn-off the cut-out that is communicated with of controlling gas circuit, making pneumatic control end with the source of the gas of described PEEP valve.
According to safety protecting method provided by the invention, described selection is closed and is comprised: if do not regulate record, only adjust the size of current of described proportional solenoid and do not close and increase described adjusting record.
According to safety protecting method provided by the invention, described selection is closed and is comprised: if there is adjusting record, and closed safe electromagnetic valve.
According to safety protecting method provided by the invention, also comprise: if described internal gas pressure, between minimum threshold and high threshold, is adjusted the size of current of described proportional solenoid according to described internal gas pressure.
PEEP security protection system provided by the invention and method thereof, adopt Electronic Control, in the time that PEEP pressure is excessive, controls security solenoid valve and close, and ensures that patient exhales is smooth and easy, guarantees patient safety, and prior art has following advantage relatively:
1, control accurately, end expiratory positive pressure is adjustable continuously;
2, safety coefficient is high;
3, it is little that the proportional solenoid that this device uses has flow, mates use with the vapour lock of high-drag, can reduce source of the gas loss.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, further the present invention is described in detail.
Fig. 1 is PEEP safety protection circuit theory diagram of the present invention;
Fig. 2 is PEEP security protection gas circuit structure schematic diagram of the present invention;
Fig. 3 is PEEP security protection control sequence schematic flow sheet of the present invention.
Detailed description of the invention
The PEEP security protection system of the specific embodiment of the invention, circuit structure as shown in Figure 1, the PEEP pressure acquisition unit, proportional solenoid valve control unit and the safety electromagnetic valve control unit, VCU that comprise processor and be electrically connected with it, wherein PEEP pressure acquisition unit is arranged on the pressure transducer on the breathing pipeline that is communicated with user and described PEEP valve.
This PEEP security protection system, gas circuit structure as shown in Figure 1, comprises proportional solenoid PSOL1 and security solenoid valve SOV1 that string is communicated with successively at the pneumatic control end with PEEP valve PEEP of controlling in gas circuit, pneumatic control connects the PEEP valve of respirator and user; The pneumatic control end of PEEP valve is also by vapour lock AR3 by-path turn-on, and an in use direct exhaust, for stablizing end expiratory positive pressure.
The Internal Control Procedure of processor in this PEEP security protection system, specifically as shown in Figure 3, specifically comprises the following steps:
301) start;
302) obtain current PE EP pressure;
303) do you judge that current PE EP pressure is positioned at normally-pressured neighbor? be to remove to regulate record, enter next step, otherwise enter step 306);
304) judge whether to regulate PEEP pressure? be to enter next step, otherwise return to step 302);
305) regulate proportional solenoid size of current, return to step 302)
306) do you judge that whether current PE EP pressure excessive or too small? too smallly enter next step, the excessive step 309 that enters);
307) the too small security solenoid valve of opening, returns to step 302);
308) the excessive adjusting record that judged whether? enter next step, do not regulate proportional solenoid size of current, return to step 302);
309) closed safe electromagnetic valve (cutting out PEEP function), provides warning;
310) finish.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the claims in the present invention scope change and modify, and all should belong to the covering scope of the claims in the present invention.
Claims (5)
1. a PEEP security protection system, the PEEP valve (PEEP) that comprises respirator and be communicated with its oxygen service, is characterized in that, also comprises:
Proportional solenoid (PSOL1), is communicated with the pneumatic control end gas circuit of described PEEP valve, for adjusting PEEP valve pressure;
Security solenoid valve (SOV1), is communicated with described proportional solenoid gas circuit, for cutting off or conducting proportional solenoid source of the gas;
PEEP pressure acquisition unit, for detection of end expiratory positive pressure;
Processor, is electrically connected described proportional solenoid, security solenoid valve and PEEP pressure acquisition unit, opening/closing for selecting to control described security solenoid valve according to the size of described end expiratory positive pressure, or adjusts the size of current of described proportional solenoid.
2. security protection system according to claim 1, is characterized in that, described PEEP pressure acquisition unit is arranged on the pressure transducer (PQ3) on the breathing pipeline that is communicated with user and described PEEP valve.
3. security protection system according to claim 1, is characterized in that, also comprise the vapour lock (AR3) being communicated with the pneumatic control end gas circuit of described PEEP valve, the described vapour lock other end is externally communicated with.
4. a PEEP safety protecting method, is characterized in that, comprises the following steps:
Utilize the pressure transducer on the breathing pipeline that is communicated with PEEP valve and user to detect end expiratory positive pressure;
If described end expiratory positive pressure lower than minimum threshold, is opened security solenoid valve (SOV1), conducting control gas circuit, make the pneumatic control end of described PEEP valve and being communicated with of source of the gas;
If described end expiratory positive pressure exceedes high threshold, close or select closed safe electromagnetic valve (SOV1), in the time that being closed, security solenoid valve controls gas circuit to be cut off, make the cut-out that is communicated with of pneumatic control end with the source of the gas of described PEEP valve; Described selection is closed and is comprised: if do not regulate record, and the size of current of a resize ratio electromagnetic valve (PSOL1) and do not close security solenoid valve and increase described adjusting record; If there is adjusting record, closed safe electromagnetic valve (SOV1).
5. safety protecting method according to claim 4, is characterized in that, also comprises: if described end expiratory positive pressure, between described minimum threshold and high threshold, is adjusted the size of current of described proportional solenoid (PSOL1) according to described end expiratory positive pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302268.7A CN102371016B (en) | 2011-09-28 | 2011-09-28 | Positive end expiratory pressure (PEEP) safety protection system and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110302268.7A CN102371016B (en) | 2011-09-28 | 2011-09-28 | Positive end expiratory pressure (PEEP) safety protection system and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371016A CN102371016A (en) | 2012-03-14 |
| CN102371016B true CN102371016B (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110302268.7A Expired - Fee Related CN102371016B (en) | 2011-09-28 | 2011-09-28 | Positive end expiratory pressure (PEEP) safety protection system and method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841055B (en) * | 2015-04-21 | 2017-11-14 | 深圳市科曼医疗设备有限公司 | Control method, the device and system of lung ventilator PEEP valves |
| CN105013057B (en) * | 2015-07-28 | 2018-05-04 | 深圳市安保科技有限公司 | A kind of end-expiratory positive pressure control system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245633A (en) * | 1979-01-31 | 1981-01-20 | Erceg Graham W | PEEP providing circuit for anesthesia systems |
| CN101337101A (en) * | 2007-07-06 | 2009-01-07 | 深圳迈瑞生物医疗电子股份有限公司 | Aerating system of anesthesia apparatus and respirator and pressure monitoring method |
| CN102114293A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | Control system and method for implementing double horizontal pressures in air passage, breathing machine and anaesthetic machine |
| CN102114301A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | PEEP (positive end expiratory pressure) valve and respirator with same |
-
2011
- 2011-09-28 CN CN201110302268.7A patent/CN102371016B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4245633A (en) * | 1979-01-31 | 1981-01-20 | Erceg Graham W | PEEP providing circuit for anesthesia systems |
| CN101337101A (en) * | 2007-07-06 | 2009-01-07 | 深圳迈瑞生物医疗电子股份有限公司 | Aerating system of anesthesia apparatus and respirator and pressure monitoring method |
| CN102114293A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | Control system and method for implementing double horizontal pressures in air passage, breathing machine and anaesthetic machine |
| CN102114301A (en) * | 2009-12-31 | 2011-07-06 | 北京谊安医疗系统股份有限公司 | PEEP (positive end expiratory pressure) valve and respirator with same |
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|---|---|
| CN102371016A (en) | 2012-03-14 |
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