CN105709318B - Breathing equipment and its oxygen concentration testing agency - Google Patents
Breathing equipment and its oxygen concentration testing agency Download PDFInfo
- Publication number
- CN105709318B CN105709318B CN201410727620.5A CN201410727620A CN105709318B CN 105709318 B CN105709318 B CN 105709318B CN 201410727620 A CN201410727620 A CN 201410727620A CN 105709318 B CN105709318 B CN 105709318B
- Authority
- CN
- China
- Prior art keywords
- gas
- oxygen
- reservoir body
- oxygen concentration
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/01—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes specially adapted for anaesthetising
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/20—Valves specially adapted to medical respiratory devices
Landscapes
- Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of breathing equipment and its oxygen concentration testing agency.Above-mentioned oxygen concentration testing agency, for detecting the oxygen concentration of main equipment output gas, oxygen concentration testing agency includes empty oxygen gating switch, reservoir body, switch valve and lambda sensor；Two air inlets of empty oxygen gating switch connect with oxygen channel and air duct respectively；Reservoir body connects with gas outlet, and reservoir body connects with outside atmosphere, and reservoir body connects with mixed-gas channel；Switch valve is between reservoir body and mixed-gas channel, and between gas outlet and reservoir body；Lambda sensor is connected with reservoir body, and lambda sensor is used for the oxygen concentration for detecting the gas in reservoir body.The parallel connection of oxygen concentration testing agency on the master, by empty oxygen gating switch, makes to be passed through oxygen or air in reservoir body, calibrates lambda sensor, and calibration process can be carried out in main equipment normal work, improve lambda sensor accuracy.
Description
Technical field
The present invention relates to the technical field of medicine equipment, more particularly to a kind of breathing equipment and its oxygen concentration detection machine
Structure.
Background technology
The medical breathing equipment such as lung ventilator, Anesthesia machine be applicable during, it is necessary to patient carry out mechanical ventilation, it is right
In just for patient receiving treatment, the control of oxygen concentration is very important, particularly to infant and Cavity in Critical Patients,
Therefore the monitoring and calibration of oxygen concentration are necessary.
In general lung ventilator and Anesthesia machine are using the concentration that detection mixed gas is supervised by lambda sensor, lambda sensor
Need often to be calibrated, to ensure its accuracy.When calibrating lambda sensor, machine need to be in holding state, first be passed through oxygen,
After be passed through air, carry out lambda sensor calibration, influence the normal work of machine.
The content of the invention
Based on this, it is necessary to the problem of can not being calibrated when being worked for breathing equipment to lambda sensor, there is provided a kind of
Breathing equipment and its oxygen concentration testing agency.
A kind of oxygen concentration testing agency, for detecting the oxygen concentration of main equipment output gas, the main equipment includes empty oxygen
Blender, and the main equipment offers oxygen channel, air duct and mixed-gas channel, the oxygen channel and the sky
Gas passage connects with two inlet ends of the empty oxygen mixer respectively, the mixed-gas channel and the empty oxygen mixer
Outlet side connects；
The oxygen concentration testing agency includes empty oxygen gating switch, reservoir body, switch valve and lambda sensor；
The empty oxygen gating switch offers two air inlets, two air inlets respectively with the oxygen channel and institute
State air duct connection；The empty oxygen gating switch is further opened with gas outlet, the empty oxygen gating switch can control it is described go out
Gas port selectivity is connected or closed with one of air inlet；
The reservoir body connects with the gas outlet, and the reservoir body connects with outside atmosphere, and the reservoir body and institute
State mixed-gas channel connection；
The switch valve is between the reservoir body and the mixed-gas channel, and the gas outlet and the appearance
Between cavity；
The lambda sensor is connected with the reservoir body, and the lambda sensor is used to detect the gas in the reservoir body
Oxygen concentration.
In one of the embodiments, the switch valve is a pneumatic on-off valve；
When gas is by passage between the gas outlet and the reservoir body, pneumatic on-off valve described in gas-powered makes
The reservoir body is isolated with the mixed-gas channel；
When gas is not by the passage between the gas outlet and the reservoir body, the pneumatic on-off valve is opened, institute
Reservoir body is stated to connect with the mixed-gas channel.
In one of the embodiments, the quantity of the switch valve is two, and two switch valves are respectively positioned at described
Between reservoir body and the mixed-gas channel, and between the gas outlet and the reservoir body.
In one of the embodiments, in addition to sequence valve, the reservoir body pass through the sequence valve and the gas outlet
Connection, the reservoir body are connected by the sequence valve with outside atmosphere；
The sequence valve offers gas access, gas vent, switching access and exchanges outlet；The gas outlet with it is described
Gas access is connected, and when gas enters the gas access, the gas vent, the switching access and the outlet that exchanges are beaten
Open；
The reservoir body connects with the switching access, and the reservoir body exchanges outlet with described, and the gas goes out
Mouth connects with outside atmosphere.
In one of the embodiments, the sequence valve is pneumatic composite sequence valve.
In one of the embodiments, the sequence valve includes valve chest, pneumatic member and elastic component；
The gas access, the gas vent, the switching access and the outlet that exchanges are opened in the valve casing
On body, the gas vent and the exchange outlet, and the gas vent and the outlet that exchanges are relative to the gas
Body entrance and switching access isolation；
The pneumatic member and the elastic component are arranged in the valve chest, the gas access and the switching access point
Not Wei Yu the pneumatic member both sides；
The elastic component is connected with the pneumatic member, and passage is offered on the pneumatic member, in the presence of elastic component,
The pneumatic member abuts with the valve chest, makes the ventilation bore closure；When the pneumatic member close to the gas access one
Side, when air pressure reaches preset value, the pneumatic member is deformed upon, and the passage is opened, and makes the gas access and the friendship
Change to mouth connection.
In one of the embodiments, the pneumatic member includes pneumatic body and ventilation part, and the pneumatic body is flexibility
Material, the ventilation part are hard material, and the passage is opened on the ventilation part；
The valve chest includes seal, and the seal is flexible material, in the presence of elastic component, the ventilation part
Abutted with the seal, make the ventilation bore closure.
A kind of breathing equipment, including main equipment and the oxygen concentration testing agency；
The main equipment includes empty oxygen mixer, and the main equipment offers oxygen channel, air duct and gaseous mixture
Body passage, the oxygen channel and the air duct connect with two inlet ends of the empty oxygen mixer respectively, described mixed
Gas passage is closed to connect with the outlet side of the empty oxygen mixer；
The oxygen concentration of the gas in the mixed-gas channel detects in the oxygen concentration testing agency.
In one of the embodiments, the gas described in oxygen concentration testing agency dynamic detection in mixed-gas channel
Oxygen concentration.
In one of the embodiments, the main equipment is lung ventilator or Anesthesia machine.
Above-mentioned breathing equipment and its oxygen concentration testing agency, the parallel connection of oxygen concentration testing agency on the master, pass through empty oxygen
Gating switch, make to be passed through oxygen or air in reservoir body, calibrate lambda sensor, calibration process can be in main equipment normal work
Carry out, improve lambda sensor accuracy.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment breathing equipment；
Fig. 2 is the schematic diagram of the sequence valve of breathing equipment shown in Fig. 1.
Embodiment
For the ease of understanding the present invention, breathing equipment and its oxygen concentration testing agency are carried out below with reference to relevant drawings
More fully describe.The preferred embodiment of breathing equipment and its oxygen concentration testing agency is given in accompanying drawing.But breathing equipment
And its oxygen concentration testing agency can realize in many different forms, however it is not limited to embodiment described herein.Conversely
Ground, there is provided the purpose of these embodiments be make it is more thorough complete to the disclosure of breathing equipment and its oxygen concentration testing agency
Face.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Herein in the used in the description of breathing equipment and its oxygen concentration testing agency
Term be intended merely to describe specific embodiment purpose, it is not intended that in limitation the present invention.
As shown in figure 1, the breathing equipment 10 of an embodiment includes main equipment and oxygen concentration testing agency, main equipment is to exhale
Suction machine or Anesthesia machine etc..Main equipment includes empty oxygen mixer 120, and main equipment offers oxygen channel 140, air duct 160
With mixed-gas channel 180, oxygen channel 140 and air duct 160 two inlet ends 122 with empty oxygen mixer 120 respectively
Connection, mixed-gas channel 180 connect with the outlet side 124 of empty oxygen mixer 120.Mixed gas detects in oxygen concentration testing agency
The oxygen concentration of gas in passage 180.
Oxygen concentration testing agency includes empty oxygen gating switch 220, reservoir body 240, switch valve 260 and lambda sensor 280.
In one embodiment, sequence valve 230 can also be included.
Empty oxygen gating switch 220 offers two air inlets 222, two air inlets 222 respectively with oxygen channel 140 and sky
Gas passage 160 connects.Empty oxygen gating switch 220 is further opened with gas outlet 224, and empty oxygen gating switch 220 can control gas outlet
224 selectivity are connected or closed with one of air inlet 222.
Reservoir body 240 connects with gas outlet 224, and reservoir body 240 connects with outside atmosphere, and reservoir body 240 and gaseous mixture
Body passage 180 connects.In one embodiment, reservoir body 240 is connected by sequence valve 230 with gas outlet 224, and reservoir body 240 is logical
Sequence valve 230 is crossed to connect with outside atmosphere.Sequence valve 230 offers gas access 232, gas vent 234, switching access 236
238 are exported with exchanging.Gas outlet 224 connects with gas access 232, when gas enters gas access 232, gas vent 234, friendship
Change to mouth 236 and exchange outlet 238 and open.Reservoir body 240 connects with switching access 236, and reservoir body 240 is with exchanging outlet 238
Connection, gas vent 234 connect with outside atmosphere.
Switch valve 260 is between reservoir body 240 and mixed-gas channel 180, and gas outlet 224 and reservoir body 240
Between.In one embodiment, switch valve 260 can be a pneumatic on-off valve 260.When gas passes through gas outlet 224 and cavity volume
During passage between body 240, gas-powered pneumatic on-off valve 260 makes reservoir body 240 isolate with mixed-gas channel 180.Work as gas
When body is not by the passage between gas outlet 224 and reservoir body 240, pneumatic on-off valve 260 is opened, reservoir body 240 and gaseous mixture
Body passage 180 connects.In another embodiment, the quantity of switch valve 260 can be two, and two switch valves 260 are located at respectively
Between reservoir body 240 and mixed-gas channel 180, and between gas outlet 224 and reservoir body 240.
Lambda sensor 280 is connected with reservoir body 240, and the oxygen that lambda sensor 280 is used to detect the gas in reservoir body 240 is dense
Degree.The parallel connection of oxygen concentration testing agency on the master, by empty oxygen gating switch 220, makes to be passed through oxygen or sky in reservoir body 240
Gas, lambda sensor 280 is calibrated, calibration process can be carried out in main equipment normal work, and it is accurate to improve lambda sensor 280
Property.
Specifically, in one of the embodiments, when main equipment works, lambda sensor 280 is calibrated, made first
Empty oxygen gating switch 220 connects oxygen channel 140 by an air inlet 222, and gas-powered switch valve 260 makes reservoir body all the way
240 isolate with mixed-gas channel 180, i.e., lambda sensor 280 is isolated with mixed-gas channel 180.Simultaneously another way gas by
In the entering order valve 230 of gas access 232, then sequence valve 230 acts, and gas enters reservoir body 240 by switching access 236
In, now lambda sensor 280 can feel oxygen, and then gas is by exchanging in 238 entering order valves 230 of outlet by gas to be gone out again
Mouth 234 is discharged into air, now completes the sampling of oxygen.
Then, sky oxygen gating switch 220 is made to connect air duct 160 by another air inlet 222, gas-powered is opened all the way
Closing valve 260 makes reservoir body 240 isolate with mixed-gas channel 180, i.e., lambda sensor 280 is isolated with mixed-gas channel 180.Together
When another way gas by the entering order valve 230 of gas access 232, then sequence valve 230 acts, and gas is by switching access 236
Into in reservoir body 240, now lambda sensor 280 can feel air, and then gas exports 238 entering order valves by exchanging
It is discharged into again by gas vent 234 in air in 230, now completes the sampling of air.
So far lambda sensor 280 completes calibration, and empty oxygen gating switch 220 closes, and switch valve 260 is opened, reservoir body 240 with
The UNICOM of mixed-gas channel 180, the gas in mixed-gas channel 180 is by the gas in air duct 160 and oxygen channel 140
The empty oxygen gas mixture that body mixes, lambda sensor 280 now can detect the oxygen concentration of empty oxygen gas mixture.Non-detection shape
Under state, empty oxygen sluice valve is closed, the oxygen concentration of the dynamic detection sky oxygen gas mixture of lambda sensor 280.
In one of the embodiments, sequence valve 230 can be pneumatic composite sequence valve 230.Referring also to Fig. 2, order
Valve 230 includes valve chest 231, pneumatic member 233 and elastic component 235.Gas access 232, gas vent 234, the and of switching access 236
Exchange outlet 238 to be opened on valve chest 231, gas vent 234 connects with outlet 238 is exchanged, and gas vent 234 and friendship
The mouth 238 that swaps out is isolated relative to gas access 232 and switching access 236.Pneumatic member 233 and elastic component 235 are arranged on valve chest
In 231, gas access 232 and switching access 236 are respectively positioned at the both sides of pneumatic member 233.
Elastic component 235 is connected with pneumatic member 233, and passage is offered on pneumatic member 233, in the presence of elastic component 235,
Pneumatic member 233 abuts with valve chest 231, makes ventilation bore closure.When pneumatic member 233 reaches close to the side of gas access 232, air pressure
During to preset value, pneumatic member 233 is deformed upon, and passage is opened, and gas access 232 is connected with switching access 236.
Further, in one embodiment, pneumatic member 233 includes pneumatic body 2332 and ventilation part 2334, pneumatic body
2332 be flexible material, and ventilation part 2334 is hard material, and passage is opened on ventilation part 2334.Valve chest 231 includes close
Sealing, seal are flexible material, and in the presence of elastic component 235, ventilation part 2334 abuts with seal, closes passage
Close.Hard material can be in close contact with flexible material so that sealed reliable.
Above example only expresses the several embodiments of the present invention, and its description is more specific and detailed, but can not
Therefore it is interpreted as the limitation to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of oxygen concentration testing agency, for detecting the oxygen concentration of main equipment output gas, the main equipment mixes including empty oxygen
Clutch, and the main equipment offers oxygen channel, air duct and mixed-gas channel, the oxygen channel and the air
Passage connects with two inlet ends of the empty oxygen mixer respectively, and the mixed-gas channel goes out with the empty oxygen mixer
Gas end connects；It is characterized in that：
The oxygen concentration testing agency includes empty oxygen gating switch, reservoir body, switch valve and lambda sensor；
The empty oxygen gating switch offers two air inlets, two air inlets respectively with the oxygen channel and the sky
Gas passage connects；The empty oxygen gating switch is further opened with gas outlet, and the empty oxygen gating switch can control the gas outlet
Selectivity is connected or closed with one of air inlet；
The reservoir body is connected with the gas outlet, and the reservoir body connects with outside atmosphere, and the reservoir body is mixed with described
Close gas passage connection；
The switch valve is between the reservoir body and the mixed-gas channel, and the gas outlet and the reservoir body
Between；
The lambda sensor is connected with the reservoir body, and the oxygen that the lambda sensor is used to detect the gas in the reservoir body is dense
Degree；
The oxygen concentration testing agency also includes sequence valve, and the reservoir body is connected by the sequence valve with the gas outlet,
The reservoir body is connected by the sequence valve with outside atmosphere；
The sequence valve offers gas access, gas vent, switching access and exchanges outlet；The gas outlet and the gas
Entrance is connected, and when gas enters the gas access, the gas vent, the switching access and the outlet that exchanges are opened；
The reservoir body connects with the switching access, and the reservoir body exchanges outlet with described, the gas vent with
Outside atmosphere connects.
2. oxygen concentration testing agency according to claim 1, it is characterised in that the switch valve is a jettron
Valve；
When gas is by passage between the gas outlet and the reservoir body, pneumatic on-off valve described in gas-powered makes described
Reservoir body is isolated with the mixed-gas channel；
When gas is not by the passage between the gas outlet and the reservoir body, the pneumatic on-off valve is opened, the appearance
Cavity connects with the mixed-gas channel.
3. oxygen concentration testing agency according to claim 1, it is characterised in that the quantity of the switch valve be two, two
The individual switch valve is respectively between the reservoir body and the mixed-gas channel, and the gas outlet and the cavity volume
Between body.
4. oxygen concentration testing agency according to claim 1, it is characterised in that the sequence valve is pneumatic composite sequence
Valve.
5. oxygen concentration testing agency according to claim 1, it is characterised in that the sequence valve includes valve chest, pneumatic
Part and elastic component；
The gas access, the gas vent, the switching access and the outlet that exchanges are opened on the valve chest,
The gas vent and the exchange outlet, and the gas vent and the outlet that exchanges are relative to the gas access
Isolate with the switching access；
The pneumatic member and the elastic component are arranged in the valve chest, the gas access and switching access difference position
In the both sides of the pneumatic member；
The elastic component is connected with the pneumatic member, and passage is offered on the pneumatic member, described in the presence of elastic component
Pneumatic member abuts with the valve chest, makes the ventilation bore closure；When the pneumatic member is close to the side of the gas access, gas
When pressure reaches preset value, the pneumatic member is deformed upon, and the passage is opened, and makes the gas access and the switching access
Connection.
6. oxygen concentration testing agency according to claim 5, it is characterised in that the pneumatic member includes pneumatic body and led to
Gas part, the pneumatic body is flexible material, and the ventilation part is hard material, and the passage is opened in the ventilation part
On；
The valve chest includes seal, and the seal is flexible material, in the presence of elastic component, the ventilation part and institute
Seal abutting is stated, makes the ventilation bore closure.
7. a kind of breathing equipment, it is characterised in that including any one of main equipment and claim 1 to 6 the oxygen concentration detection machine
Structure；
The main equipment includes empty oxygen mixer, and the main equipment offers oxygen channel, air duct and mixed gas and led to
Road, the oxygen channel and the air duct connect with two inlet ends of the empty oxygen mixer respectively, the gaseous mixture
Body passage connects with the outlet side of the empty oxygen mixer；
The oxygen concentration of the gas in the mixed-gas channel detects in the oxygen concentration testing agency.
8. breathing equipment according to claim 7, it is characterised in that mixed described in oxygen concentration testing agency dynamic detection
Close the oxygen concentration of the gas in gas passage.
9. breathing equipment according to claim 7, it is characterised in that the main equipment is lung ventilator or Anesthesia machine.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727620.5A CN105709318B (en) | 2014-12-03 | 2014-12-03 | Breathing equipment and its oxygen concentration testing agency |
| PCT/CN2014/093662 WO2016086445A1 (en) | 2014-12-03 | 2014-12-12 | Breathing equipment and oxygen concentration detection mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727620.5A CN105709318B (en) | 2014-12-03 | 2014-12-03 | Breathing equipment and its oxygen concentration testing agency |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105709318A CN105709318A (en) | 2016-06-29 |
| CN105709318B true CN105709318B (en) | 2018-02-02 |
Family
ID=56090868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727620.5A Active CN105709318B (en) | 2014-12-03 | 2014-12-03 | Breathing equipment and its oxygen concentration testing agency |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105709318B (en) |
| WO (1) | WO2016086445A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111093746B (en) * | 2017-10-20 | 2023-02-28 | 深圳迈瑞生物医疗电子股份有限公司 | Anesthesia machine, oxygen battery calibration system and calibration method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792665A (en) * | 1996-05-29 | 1998-08-11 | Morrow, Iii; Donald W. | Oxygen sensing method and hand held analyzer therefore |
| US7353824B1 (en) * | 2004-08-30 | 2008-04-08 | Forsyth David E | Self contained breathing apparatus control system for atmospheric use |
| CN101365510A (en) * | 2005-12-02 | 2009-02-11 | 阿利吉安斯公司 | Gas blender with auxiliary mixed gas outlet |
| CN101687086A (en) * | 2007-06-28 | 2010-03-31 | 马奎特紧急护理公司 | A patient ventilation system with gas identification means |
| CN102793960A (en) * | 2012-08-14 | 2012-11-28 | 苏州品诺维新医疗科技有限公司 | Air path device for pneumatic control passage switching and control method |
| CN203324223U (en) * | 2013-06-05 | 2013-12-04 | 北京谊安医疗系统股份有限公司 | Anaesthesia machine and oxygen concentration monitoring device thereof |
| US8820135B2 (en) * | 2007-10-29 | 2014-09-02 | Poseidon Diving Systems Ab | Auto calibration / validation of oxygen sensor in breathing apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100581727B1 (en) * | 2004-11-11 | 2006-05-23 | 차은종 | How to measure absolute lung volume by analyzing oxygen and carbon dioxide gas |
| JP5064772B2 (en) * | 2006-12-01 | 2012-10-31 | テルモ株式会社 | Oxygen inhaler |
| CN101468221B (en) * | 2007-12-29 | 2013-10-23 | 北京谊安医疗系统股份有限公司 | Anaesthetic absorbing loop |
| CN102500026B (en) * | 2011-12-01 | 2014-04-23 | 于邦仲 | Air passage system of respirator |
| CN102580213B (en) * | 2012-03-21 | 2014-11-05 | 深圳市科曼医疗设备有限公司 | Ventilation system of anesthesia machine and flow calibrating method of ventilation system |
-
2014
- 2014-12-03 CN CN201410727620.5A patent/CN105709318B/en active Active
- 2014-12-12 WO PCT/CN2014/093662 patent/WO2016086445A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5792665A (en) * | 1996-05-29 | 1998-08-11 | Morrow, Iii; Donald W. | Oxygen sensing method and hand held analyzer therefore |
| US7353824B1 (en) * | 2004-08-30 | 2008-04-08 | Forsyth David E | Self contained breathing apparatus control system for atmospheric use |
| CN101365510A (en) * | 2005-12-02 | 2009-02-11 | 阿利吉安斯公司 | Gas blender with auxiliary mixed gas outlet |
| CN101687086A (en) * | 2007-06-28 | 2010-03-31 | 马奎特紧急护理公司 | A patient ventilation system with gas identification means |
| US8820135B2 (en) * | 2007-10-29 | 2014-09-02 | Poseidon Diving Systems Ab | Auto calibration / validation of oxygen sensor in breathing apparatus |
| CN102793960A (en) * | 2012-08-14 | 2012-11-28 | 苏州品诺维新医疗科技有限公司 | Air path device for pneumatic control passage switching and control method |
| CN203324223U (en) * | 2013-06-05 | 2013-12-04 | 北京谊安医疗系统股份有限公司 | Anaesthesia machine and oxygen concentration monitoring device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105709318A (en) | 2016-06-29 |
| WO2016086445A1 (en) | 2016-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8776791B2 (en) | Respirator and method for calibrating flow rate measuring component thereof | |
| KR101612584B1 (en) | Fluid flow control apparatus and patient fluid sampling method | |
| CN202366351U (en) | Respiratory resistance and airtightness detection device for respiratory protection articles | |
| CN102114290B (en) | Method, device and system for detecting breathing machine | |
| US9506900B2 (en) | Gas treatment device and medical equipment using the same | |
| CN109011090A (en) | Empty oxygen gas mixture road design and the ventilator with the gas circuit | |
| CN106492321B (en) | A kind of ventilator | |
| CN109767679B (en) | Breath experimental device | |
| CN102580213B (en) | Ventilation system of anesthesia machine and flow calibrating method of ventilation system | |
| CN106338370A (en) | Airtightness detector for puncturing device | |
| CN104225745A (en) | Calibration device of breathing machine tester | |
| CN105709318B (en) | Breathing equipment and its oxygen concentration testing agency | |
| CN204479255U (en) | The leak test system of coaxial breathing hose leak test, Connection Element and assembly | |
| CN106248319B (en) | Puncture outfit air-tightness detection method | |
| CN106492322A (en) | A kind of lung ventilator | |
| US8522618B1 (en) | Disposable manometer for use with magnetic resonance imaging | |
| CN201637556U (en) | Air tightness checking device for anesthesia breathing circuit tubes | |
| CN105169539A (en) | Emergency ventilator | |
| CN206837206U (en) | A kind of lung ventilator | |
| CN105388278B (en) | A kind of hand-held respiration filtering device | |
| CN104014063B (en) | Noinvasive nitric oxide autonomous respiration feed system | |
| CN202083532U (en) | Device for testing air tightness of telescopic bellows loop | |
| GB798561A (en) | Improvements in or relating to apparatus for the administration of substances to living subjects | |
| CN205538924U (en) | Detect scavenging material purifying effect's device | |
| CN103115644B (en) | The pick-up unit of bag respirator critical performance parameters and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |