CN203324223U - Anaesthesia machine and oxygen concentration monitoring device thereof - Google Patents
Anaesthesia machine and oxygen concentration monitoring device thereof Download PDFInfo
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- CN203324223U CN203324223U CN2013203233860U CN201320323386U CN203324223U CN 203324223 U CN203324223 U CN 203324223U CN 2013203233860 U CN2013203233860 U CN 2013203233860U CN 201320323386 U CN201320323386 U CN 201320323386U CN 203324223 U CN203324223 U CN 203324223U
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Abstract
The utility model provides an anaesthesia machine and an oxygen concentration monitoring device thereof. The oxygen concentration monitoring device comprises a mounting seat, a switching element, an oxygen sensor and a gas pump, wherein a loop gas inlet, a calibration gas inlet and a gas outlet are formed in the mounting seat; the switching element is arranged on the mounting seat and can be used for switching the communication of the loop gas inlet and the gas outlet or the communication of the calibration gas inlet and the gas outlet; the oxygen sensor is arranged on the mounting seat and used for monitoring the concentration of oxygen in gas flowing through the oxygen concentration monitoring device; the gas pump is arranged on the mounting seat, and provided with a gas pump gas inlet communicated with the gas outlet and a waste gas exhaust port. Therefore, according to the oxygen concentration monitoring device, automatic scaling and calibration of the oxygen sensor can be realized, the oxygen sensor needs not to be detached, time can be greatly saved, and labor intensity of staff can be reduced.
Description
Technical field
The utility model relates to the medical equipment technical field, particularly relates to a kind of Anesthesia machine and oxygen concentration monitoring device thereof.
Background technology
The lambda sensor used on Anesthesia machine in recent years, claim again oxygen cell, principle, substantially can be divided into two classes, electrochemistry oxygen battery and transient magnetism lambda sensor.
The electrochemistry oxygen battery is used for measuring the oxygen concentration of Anesthesia machine mixed gas by the principles of chemistry, under constant working pressure and steady temperature condition, magnitude of voltage and oxygen concentration that oxygen cell produces are proportional, and the output voltage of each oxygen cell is stable basically in whole lifetime.If can cause the oxygen concentration that monitors inaccurate but the electrochemistry oxygen battery still continues use after reaching serviceable life, therefore need to calibrate calibration to the electrochemistry oxygen battery.If it is larger still to monitor deviation after the calibration calibration, is all generally that oxygen cell exhausts, need to change oxygen cell.
At present, the electrochemistry oxygen battery all is installed on the gas absorption loop of Anesthesia machine, then by cable, signal is transmitted on the GUI display interface and shows.When calibration when calibration of carrying out such oxygen cell, current method of operating is, oxygen cell taken out from absorption circuit expose to oxygen content and be approximately in 21% calibration gas, operates so more time-consuming and can increase the weight of medical worker's labour intensity.In addition, adopt above-mentioned mounting means, to the absorption circuit autoclave sterilization time, oxygen cell and cable thereof need to be disassembled, in the situation that in operating room, pipeline is originally just numerous and diverse, how many single lines cable will increase a trouble to the doctor, even can many share risks.
The utility model content
The utility model is intended at least solve one of technical matters existed in prior art.For this reason, a purpose of the present utility model is to propose a kind of oxygen concentration monitoring device that can calibrate the lambda sensor auto-scaling.
Another purpose of the present utility model is to propose a kind of Anesthesia machine with this oxygen concentration monitoring device.
Oxygen concentration monitoring device according to the utility model one side comprises: mount pad, and described mount pad has loop gas entrance, calibration gas access and gas vent; Switching device, described switching device be located on described mount pad and be communicated with described loop gas entrance and described gas vent or be communicated with described calibration gas access and described gas vent between switch; Lambda sensor, described lambda sensor is located on described mount pad the oxygen concentration in the gas of described oxygen concentration monitoring device with monitoring stream; And air pump, described air pump is located on described mount pad and has air pump air intake opening and the outlet port be communicated with described gas vent.
Thus, according to oxygen concentration monitoring device of the present utility model, by being arranged on mount pad by lambda sensor and the switching controls of switching device, can realize the auto-scaling calibration of lambda sensor, need not be dismantled lambda sensor, greatly save the time and reduced personnel labor intensity.In addition, being arranged on high temperature, the autoclave sterilization that the lambda sensor on mount pad can not carry out absorption circuit makes troubles, and therefore when high temperature, autoclave sterilization, also need not be dismantled lambda sensor.Finally, because switching device, lambda sensor and air pump are installed on mount pad, so the oxygen concentration monitoring device compact conformation of the utility model embodiment, occupy little space and be suitable for being connected with the gas absorption loop.
In addition, also there is following additional technical feature according to oxygen concentration monitoring device of the present utility model:
The oxygen concentration monitoring device also comprises for monitoring stream through the flow of the described gas of described mount pad and according to the flow monitoring element of the described air pump gas of described flow control.
The flow monitoring element of described gas is located in described mount pad.
The oxygen concentration monitoring device also comprises for monitoring stream through the pressure of the described gas of described mount pad and controls the gas pressure monitoring element of described air pump according to described pressure.
Described gas pressure monitoring element is located in described mount pad.
Described switch unit is the two-bit triplet solenoid valve.
The Anesthesia machine on the other hand according to the utility model, comprising: the gas absorption loop; The calibration gas source; With the oxygen concentration monitoring device, described oxygen concentration monitoring device is the described oxygen concentration monitoring device of above-mentioned any one, the loop gas entrance of mount pad and described gas absorption circuit communication are so that the portion gas in described gas absorption loop flows in described oxygen concentration monitoring device from described loop gas entrance, and the calibration gas access of described mount pad is communicated with so that calibration gas flows in described oxygen concentration monitoring device from described calibration gas access with described calibration gas source.
Thus, according to Anesthesia machine of the present utility model, by the oxygen concentration monitoring device, can realize the auto-scaling calibration of lambda sensor, need not be dismantled lambda sensor, greatly save the time and reduced personnel labor intensity.In addition, being arranged on high temperature, the autoclave sterilization that the lambda sensor on mount pad can not carry out absorption circuit makes troubles, and therefore when high temperature, autoclave sterilization, also need not be dismantled lambda sensor.
In addition, also there is following additional technical feature according to Anesthesia machine of the present utility model:
Described calibration gas is air.
Described outlet port is communicated with outside air.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
The accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is that wherein the direction of arrow represents gas flow direction according to the gas circuit principle schematic diagram of the oxygen concentration monitoring device of the utility model embodiment;
Fig. 2 and Fig. 3 are respectively the oxygen concentration monitoring device perspective exploded view in different directions according to the utility model embodiment.
Embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label means same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " vertically ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing purpose, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also to be electrically connected to; Can be directly to be connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1-3, the oxygen concentration monitoring device according to the utility model embodiment is described.
Be used for the contained oxygen content of gas in the gas-monitoring absorption circuit according to the oxygen concentration monitoring device of the utility model embodiment, the gas absorption loop of Anesthesia machine for example, and the oxygen concentration monitoring device comprises: mount pad 10, switching device 20, lambda sensor 30 and air pump 40.
Particularly, as Figure 1-3, mount pad 10 inside have the gas channels (not shown) and have and the loop gas entrance 11 of gas absorption circuit communication, the calibration gas access 12 be communicated with the calibration gas source, gas vent 13 and monitoring mouth 14.
Lambda sensor 30 be located on mount pad 10 and for monitoring stream the oxygen concentration through the gas of oxygen concentration monitoring device, particularly, the oxygen concentration of monitoring stream in the gas of mount pad 10.Lambda sensor 30 removably is located on mount pad 10 and stretches into monitoring mouth 14 so that the gas of monitoring stream in mount pad 10.
When switching device 20 switches to calibration gas access 12 and is connected with gas vent 13, air pump 40 start with by calibration gas from the calibration gas access 12 gas channels that suck in mount pads, and by air pump air intake opening 41, flow in air pump 40 from gas vent 13 is discharged, finally from outlet port 42, discharge.Due to the oxygen that contains about 21% in calibration gas, therefore, in the calibration gas that can come to monitor with brand-new lambda sensor 30 according to oxygen concentration numerical value in the calibration gas of now lambda sensor 30 monitorings, oxygen concentration numerical value is compared, thereby lambda sensor 30 is calibrated to calibration, to guarantee the monitoring precision of lambda sensor 30.Without lambda sensor 30 is removed from mount pad 10, be placed in the calibration gaseous environment and calibrate calibration in this process, so not only need not personnel's manual operation, and can realize that the auto-scaling of lambda sensor 30 calibrates.
When switching device 20 switches to loop gas entrance 11 and is connected with gas vent 13, air pump 40 starts the gas channels sucked in mount pad 10 from loop gas entrance 11 with the portion gas by the gas absorption loop, and by air pump air intake opening 41, flow in air pump from gas vent 13 is discharged, finally from air pump outlet port 42, discharge.When loop gas is flowed through mount pad 10, the oxygen content in 30 pairs of gases of lambda sensor is monitored.
Thus, according to oxygen concentration monitoring device of the present utility model, by being arranged on mount pad 10 and the switching controls of switching device 20 by lambda sensor 30, can realize the auto-scaling calibration of lambda sensor 30, need not be dismantled lambda sensor 30, greatly save the time and reduced personnel labor intensity.In addition, being arranged on high temperature, the autoclave sterilization that the lambda sensor 30 on mount pad 10 can not carry out absorption circuit makes troubles, and therefore when high temperature, autoclave sterilization, also need not be dismantled lambda sensor 30.Finally, because switching device 20, lambda sensor 30 and air pump 40 are installed on mount pad 10, so the oxygen concentration monitoring device compact conformation of the utility model embodiment, occupy little space and be suitable for being connected with the gas absorption loop.
According to embodiment more of the present utility model, as shown in Figure 1, the oxygen concentration monitoring device can comprise the gas flow monitoring element 50 be located in mount pad 10, so that monitoring stream is through the flow of the gas of mount pad 10, and according to the working condition of this flow control air pump 40.For example, if gas flow does not reach preset value, control air pump 40 enlarged operating loads to improve flow.
The oxygen concentration monitoring device can also comprise the gas pressure monitoring element (not shown) be located in mount pad 10.This gas pressure monitoring element can be located at the installation site of gas flow monitoring element 50, and its effect is identical with gas flow monitoring element 50.In other words, gas flow monitoring element 50 and gas pressure monitoring element can be selected the one use.By this gas pressure monitoring element, the pressure of the gas of the mount pad 10 of flowing through is monitored, and according to the gas pressure monitoring result, air pump 40 is controlled.For example, if gaseous tension does not reach preset value, control air pump 40 enlarged operating loads to improve gaseous tension.
Because the air capacity sucked from absorption circuit by air pump 40 in mount pad 10 need to maintain a suitable scope, can affect gas gross in the Anesthesia machine absorption circuit at most if cross, Anesthesia machine use gas is impacted; If cross, can cause at least oxygen content to monitor inaccurate problem.Therefore, by gas flow monitoring element 50 or gas pressure monitoring element, can guarantee to remain in suitable scope for the gas flow of oxygen content monitoring.
It will be understood by those skilled in the art that, the installation site of gas flow monitoring element 50 or gas pressure monitoring element is not limited in mount pad 10, can also be located on mount pad 10 or be located at beyond mount pad, in other words, the utility model does not limit the installation site of gas flow monitoring element 50 or gas pressure monitoring element.Preferably, gas flow monitoring element 50 or gas pressure monitoring element are located between the air pump air intake opening 41 of the gas vent 13 of mount pad 10 and air pump 40.
In the oxygen concentration monitoring device of the utility model embodiment, lambda sensor 30 can be electrochemistry oxygen battery or transient magnetism lambda sensor, in other words, above-mentioned two kinds of oxygen cells are all applicable to the oxygen concentration monitoring device of the utility model embodiment, preferably, lambda sensor 30 adopts the electrochemistry oxygen battery.In order to mate different oxygen cells, only need to adjust structure and the shape of the monitoring mouth of mounting blocks.
Below with reference to Fig. 1, the Anesthesia machine according to the utility model embodiment is described.
According to the Anesthesia machine of the utility model embodiment, comprise: gas absorption loop, calibration gas source and oxygen concentration monitoring device.
The loop gas entrance 11 of the mount pad 10 of oxygen concentration monitoring device and gas absorption circuit communication are so that the portion gas in the gas absorption loop goes out outlet port 42 outflows from 11 inflows of loop gas entrance and from air pump.The calibration gas access 12 of mount pad 10 is communicated with the calibration gas source so that calibration gas 12 flows into and discharges from the outlet port 42 of air pump from the calibration gas access.
Preferably, calibration gas is air, i.e. calibration gas source can be ambient air source.Outlet port 42 can be communicated with outside air, and calibration gas is directly entered to external environment condition, or with Anesthesia machine on other exhaust gas centralizeds in after unified by negative pressure suction device, process and discharge.
Thus, according to the Anesthesia machine of the utility model embodiment, by the oxygen concentration monitoring device, can realize the auto-scaling calibration of lambda sensor 30, need not be dismantled lambda sensor 30, greatly save the time and reduced personnel labor intensity.In addition, being arranged on high temperature, the autoclave sterilization that the lambda sensor 30 on mount pad 10 can not carry out absorption circuit makes troubles, and therefore when high temperature, autoclave sterilization, also need not be dismantled lambda sensor 30.
Other formations of the Anesthesia machine of the utility model embodiment can be well known by persons skilled in the art, do not repeat them here.
Oxygen concentration monitoring method according to the Anesthesia machine of the utility model embodiment is described below.
Oxygen concentration monitoring method according to the Anesthesia machine of the utility model embodiment, comprise the steps:
Step 1, before regularly lambda sensor 30 being done the calibration calibration, the calibration gas access 12 that Anesthesia machine switching device 20 is switched to mount pad 10 is with after gas vent 13 is communicated with, booster air pump 40 makes calibration gas in the 12 inflow mount pads 10 of calibration gas access, according to the oxygen concentration of lambda sensor 30 monitorings, lambda sensor 30 is carried out to the auto-scaling calibration.
Step 2, after the calibration calibration of carrying out lambda sensor 30, at the loop gas entrance 11 that switching device 20 is switched to mount pad 10, with gas vent 13, be communicated with, booster air pump 40 makes loop gas flow in mount pad 10 with the oxygen concentration by lambda sensor 30 monitoring circuit gases from loop gas entrance 11.
Thus, according to the oxygen concentration monitoring method of the Anesthesia machine of the utility model embodiment, not only simple to operate, quick, and can effectively improve the service efficiency of Anesthesia machine.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (9)
1. an oxygen concentration monitoring device, is characterized in that, comprising:
Mount pad, described mount pad has loop gas entrance, calibration gas access and gas vent;
Switching device, described switching device be located on described mount pad and be communicated with described loop gas entrance and described gas vent or be communicated with described calibration gas access and described gas vent between switch;
Lambda sensor, described lambda sensor is located on described mount pad the oxygen concentration in the gas of described oxygen concentration monitoring device with monitoring stream; With
Air pump, described air pump is located on described mount pad and has air pump air intake opening and the outlet port be communicated with described gas vent.
2. oxygen concentration monitoring device according to claim 1, is characterized in that, also comprises for monitoring stream through the flow of the described gas of described mount pad and according to the flow monitoring element of the described air pump gas of described flow control.
3. oxygen concentration monitoring device according to claim 2, is characterized in that, the flow monitoring element of described gas is located in described mount pad.
4. oxygen concentration monitoring device according to claim 1, is characterized in that, also comprises for monitoring stream through the pressure of the described gas of described mount pad and control the gas pressure monitoring element of described air pump according to described pressure.
5. oxygen concentration monitoring device according to claim 4, is characterized in that, described gas pressure monitoring element is located in described mount pad.
6. oxygen concentration monitoring device according to claim 1, is characterized in that, described switch unit is the two-bit triplet solenoid valve.
7. an Anesthesia machine, is characterized in that, comprising:
The gas absorption loop;
The calibration gas source; With
The oxygen concentration monitoring device, described oxygen concentration monitoring device is according to the described oxygen concentration monitoring device of any one in claim 1-6, the loop gas entrance of mount pad and described gas absorption circuit communication are so that the portion gas in described gas absorption loop flows in described oxygen concentration monitoring device from described loop gas entrance, and the calibration gas access of described mount pad is communicated with so that calibration gas flows in described oxygen concentration monitoring device from described calibration gas access with described calibration gas source.
8. Anesthesia machine according to claim 7 is put, and it is characterized in that, described calibration gas is air.
9. Anesthesia machine according to claim 8 is put, and it is characterized in that, described outlet port is communicated with outside air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203233860U CN203324223U (en) | 2013-06-05 | 2013-06-05 | Anaesthesia machine and oxygen concentration monitoring device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203233860U CN203324223U (en) | 2013-06-05 | 2013-06-05 | Anaesthesia machine and oxygen concentration monitoring device thereof |
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| CN203324223U true CN203324223U (en) | 2013-12-04 |
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| CN2013203233860U Expired - Lifetime CN203324223U (en) | 2013-06-05 | 2013-06-05 | Anaesthesia machine and oxygen concentration monitoring device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2552598C1 (en) * | 2014-06-05 | 2015-06-10 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Физико-Технических И Радиотехнических Измерений" (Фгуп "Вниифтри") | Device for reproduction and transmission of mass concentration units of oxygen and hydrogen in liquid media |
| WO2016086445A1 (en) * | 2014-12-03 | 2016-06-09 | 深圳市科曼医疗设备有限公司 | Breathing equipment and oxygen concentration detection mechanism thereof |
| CN105973954A (en) * | 2016-07-20 | 2016-09-28 | 力合科技（湖南）股份有限公司 | Oxygen content calibration gas sampling device and online oxygen content calibration method |
| CN108348715A (en) * | 2015-11-13 | 2018-07-31 | 欧根·卡根 | Lung ventilator |
| CN110801563A (en) * | 2019-11-05 | 2020-02-18 | 塔城市人民医院 | Respirator and automatic calibration method for oxygen sensor of respirator |
| RU2722967C1 (en) * | 2019-09-12 | 2020-06-05 | Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" | Device for reproduction and transmission of units of mass concentration of gases in liquid media |
-
2013
- 2013-06-05 CN CN2013203233860U patent/CN203324223U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2552598C1 (en) * | 2014-06-05 | 2015-06-10 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Физико-Технических И Радиотехнических Измерений" (Фгуп "Вниифтри") | Device for reproduction and transmission of mass concentration units of oxygen and hydrogen in liquid media |
| WO2016086445A1 (en) * | 2014-12-03 | 2016-06-09 | 深圳市科曼医疗设备有限公司 | Breathing equipment and oxygen concentration detection mechanism thereof |
| CN105709318A (en) * | 2014-12-03 | 2016-06-29 | 深圳市科曼医疗设备有限公司 | Breathing apparatus and oxygen concentration detection mechanism |
| CN105709318B (en) * | 2014-12-03 | 2018-02-02 | 深圳市科曼医疗设备有限公司 | Breathing equipment and its oxygen concentration testing agency |
| CN108348715A (en) * | 2015-11-13 | 2018-07-31 | 欧根·卡根 | Lung ventilator |
| CN108348715B (en) * | 2015-11-13 | 2021-03-19 | 欧根·卡根 | Breathing machine |
| CN105973954A (en) * | 2016-07-20 | 2016-09-28 | 力合科技（湖南）股份有限公司 | Oxygen content calibration gas sampling device and online oxygen content calibration method |
| RU2722967C1 (en) * | 2019-09-12 | 2020-06-05 | Федеральное государственное унитарное предприятие "Научно-исследовательский технологический институт имени А.П. Александрова" | Device for reproduction and transmission of units of mass concentration of gases in liquid media |
| CN110801563A (en) * | 2019-11-05 | 2020-02-18 | 塔城市人民医院 | Respirator and automatic calibration method for oxygen sensor of respirator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |