AU2001246266A1 - Rebreathing circuit - Google Patents
Rebreathing circuitInfo
- Publication number
- AU2001246266A1 AU2001246266A1 AU2001246266A AU4626601A AU2001246266A1 AU 2001246266 A1 AU2001246266 A1 AU 2001246266A1 AU 2001246266 A AU2001246266 A AU 2001246266A AU 4626601 A AU4626601 A AU 4626601A AU 2001246266 A1 AU2001246266 A1 AU 2001246266A1
- Authority
- AU
- Australia
- Prior art keywords
- atmospheric air
- conduit branch
- conduit
- check valve
- way
- 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.)
- Abandoned
Links
- 241001165704 Isocapnia Species 0.000 abstract 2
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 2
- 230000003434 inspiratory effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
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
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
-
- 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
- A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
-
- 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
- A61M16/0045—Means for re-breathing exhaled gases, e.g. for hyperventilation treatment
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Anesthesiology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Surgical Instruments (AREA)
- Burglar Alarm Systems (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Percussion Or Vibration Massage (AREA)
Abstract
A portable isocapnia circuit and an isocapnia method. A breathing port of the circuit allows a subject to inhale and exhale. Connected to the breathing port, a bifurcate conduit has a first conduit branch and a second conduit branch. The first conduit branch has an atmospheric air inlet, from which the atmospheric air is provided for inhalation, an inspiratory check valve to allow a one-way flow of the atmospheric air, and an atmospheric air aspirator. The second conduit branch has a one-way expiratory check valve and a expiratory gas reservoir. A one-way check valve is used to interconnect the first and second conduit branch, from which the expiratory gas stored in the expiratory gas reservoir flows to the first conduit branch to mix with the atmospheric air when the minute ventilation exceeds the atmospheric air.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002304292A CA2304292C (en) | 2000-03-31 | 2000-03-31 | An improved rebreathing circuit to set and stabalize end tidal and arterial pco2 despite varying levels of minute ventilation |
CA2304292 | 2000-03-31 | ||
PCT/CA2001/000404 WO2001074433A1 (en) | 2000-03-31 | 2001-03-30 | Rebreathing circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001246266A1 true AU2001246266A1 (en) | 2001-10-15 |
Family
ID=4165803
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001246266A Abandoned AU2001246266A1 (en) | 2000-03-31 | 2001-03-30 | Rebreathing circuit |
Country Status (7)
Country | Link |
---|---|
US (2) | US6622725B1 (en) |
EP (1) | EP1267978B1 (en) |
AT (1) | ATE372802T1 (en) |
AU (1) | AU2001246266A1 (en) |
CA (1) | CA2304292C (en) |
DE (1) | DE60130438T2 (en) |
WO (1) | WO2001074433A1 (en) |
Families Citing this family (76)
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CA2346517A1 (en) * | 2001-05-04 | 2002-11-04 | Joseph Fisher | Improved method of maintaining constant arterial pco2 during increased minute ventilation and measurement of anatomic and alveolar dead space |
EP1370319A1 (en) | 2001-03-12 | 2003-12-17 | Joseph A. Fisher | Rebreathing circuit |
CA2379353C (en) * | 2002-03-28 | 2012-07-31 | Joseph Fisher | A new method for continuous measurement of flux of gases in the lungs during breathing |
US20040084048A1 (en) * | 2002-09-27 | 2004-05-06 | Alex Stenzler | High FIO2 oxygen mask with a sequential dilution feature and filter |
WO2004073779A2 (en) | 2003-02-18 | 2004-09-02 | Joseph Fisher | Breathing circuits to facilitate the measurement of cardiac output during controlled and spontaneous ventilation |
CA2522623C (en) | 2003-02-19 | 2014-01-28 | Joseph Fisher | A new method of measuring cardiac related parameters non-invasively with spontaneous and controlled ventilation |
FR2858236B1 (en) | 2003-07-29 | 2006-04-28 | Airox | DEVICE AND METHOD FOR SUPPLYING RESPIRATORY GAS IN PRESSURE OR VOLUME |
US20050217667A1 (en) * | 2004-03-30 | 2005-10-06 | Sunil Dhuper | Aerosol deliver apparatus IV |
US20090173348A1 (en) * | 2005-02-25 | 2009-07-09 | Fisher Joseph A | Method And Apparatus For Inducing And Controlling Hypoxia |
US8028697B2 (en) | 2005-04-28 | 2011-10-04 | Trudell Medical International | Ventilator circuit and method for the use thereof |
US7841342B2 (en) * | 2005-05-03 | 2010-11-30 | Aeon Research And Technology, Inc. | Interface accessory for use with an aerosol inhalation system |
US8534280B2 (en) | 2007-11-19 | 2013-09-17 | Aeon Research and Technolgy Inc. | Patient interface member for use in an aerosol inhalation system |
US7926484B2 (en) * | 2005-05-03 | 2011-04-19 | Aeon Research And Technology, Inc. | Interface accessory for use with an aerosol inhalation system |
US7445006B2 (en) | 2005-05-03 | 2008-11-04 | Dhuper Sunil K | Aerosol inhalation system and interface accessory for use therewith |
US7870857B2 (en) * | 2005-05-23 | 2011-01-18 | Aeon Research And Technology, Inc. | Patient interface assemblies for use in ventilator systems to deliver medication to a patient |
WO2007012197A1 (en) * | 2005-07-28 | 2007-02-01 | Marat Slessarev | A method and apparatus to attain and maintain target end tidal gas concentrations |
US10071218B2 (en) | 2006-01-24 | 2018-09-11 | Zoll Medical Corporation | Reperfusion protection in resuscitation |
US20070169779A1 (en) * | 2006-01-24 | 2007-07-26 | Freeman Gary A | Reperfusion protection in resuscitation |
US20100163046A1 (en) * | 2006-03-28 | 2010-07-01 | Joseph Fisher | Method and apparatus for ventilation assistance |
US7900626B2 (en) * | 2006-04-17 | 2011-03-08 | Daly Robert W | Method and system for controlling breathing |
US8381732B2 (en) * | 2008-03-21 | 2013-02-26 | The Periodic Breathing Foundation, Llc | Nasal interface device |
DK176782B1 (en) * | 2006-08-04 | 2009-08-17 | Innovision As | Method for Compensating the Effect of Blood Soluble Gas Recirculation on Determination of Pulmonary Blood Flow in Repeat Inert Gas Repeat Tests |
DE102006045014A1 (en) * | 2006-09-23 | 2008-04-03 | Dräger Medical AG & Co. KG | Method and device for monitoring a dosage of at least one drug |
US20080236581A1 (en) * | 2007-03-29 | 2008-10-02 | Borje Rantala | Method in a patient ventilating system |
US20080302365A1 (en) * | 2007-06-08 | 2008-12-11 | Cohen Eric D | Respiratory Mask |
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 |
US8457706B2 (en) | 2008-05-16 | 2013-06-04 | Covidien Lp | Estimation of a physiological parameter using a neural network |
US8302602B2 (en) | 2008-09-30 | 2012-11-06 | Nellcor Puritan Bennett Llc | Breathing assistance system with multiple pressure sensors |
US8596265B2 (en) | 2008-10-22 | 2013-12-03 | Trudell Medical International | Modular aerosol delivery system |
US8434479B2 (en) | 2009-02-27 | 2013-05-07 | Covidien Lp | Flow rate compensation for transient thermal response of hot-wire anemometers |
US10004515B2 (en) | 2009-09-11 | 2018-06-26 | Tbi Innovations, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
US8985120B2 (en) * | 2009-09-11 | 2015-03-24 | Tbi Innovations, Llc | Method to reduce SLOSH energy absorption and its damaging effects through the reduction of inelastic collisions in an organism |
US10842502B2 (en) | 2009-09-11 | 2020-11-24 | Tbi Innovations, Llc | Devices and systems to mitigate traumatic brain and other injuries caused by concussive or blast forces |
US11696766B2 (en) | 2009-09-11 | 2023-07-11 | Tbi Innovations, Llc | Methods and devices to reduce damaging effects of concussive or blast forces on a subject |
US9168045B2 (en) | 2009-09-11 | 2015-10-27 | Tbi Innovations, Llc | Device to reduce SLOSH energy absorption and its damaging effects through the reduction of the flow of one or more outflow vessels of the cranium |
US9173660B2 (en) | 2009-09-11 | 2015-11-03 | Tbi Innovations, Llc | Methods and devices to reduce the likelihood of injury from concussive or blast forces |
US8439037B2 (en) | 2009-12-01 | 2013-05-14 | Covidien Lp | Exhalation valve assembly with integrated filter and flow sensor |
US8439036B2 (en) | 2009-12-01 | 2013-05-14 | Covidien Lp | Exhalation valve assembly with integral flow sensor |
US8469031B2 (en) | 2009-12-01 | 2013-06-25 | Covidien Lp | Exhalation valve assembly with integrated filter |
US8469030B2 (en) | 2009-12-01 | 2013-06-25 | Covidien Lp | Exhalation valve assembly with selectable contagious/non-contagious latch |
USD655809S1 (en) | 2010-04-27 | 2012-03-13 | Nellcor Puritan Bennett Llc | Valve body with integral flow meter for an exhalation module |
USD655405S1 (en) | 2010-04-27 | 2012-03-06 | Nellcor Puritan Bennett Llc | Filter and valve body for an exhalation module |
USD653749S1 (en) | 2010-04-27 | 2012-02-07 | Nellcor Puritan Bennett Llc | Exhalation module filter body |
US10500357B2 (en) * | 2011-03-24 | 2019-12-10 | Koninklijke Philips N.V. | Methods and systems to manage central sleep apnea by controlling accumulated retrograde volume |
US9629971B2 (en) | 2011-04-29 | 2017-04-25 | Covidien Lp | Methods and systems for exhalation control and trajectory optimization |
CA2884836C (en) * | 2011-09-14 | 2018-01-23 | Brian Anthony LEMPER | Inhalation systems, breathing apparatuses, and methods |
US9364624B2 (en) | 2011-12-07 | 2016-06-14 | Covidien Lp | Methods and systems for adaptive base flow |
CN102488952A (en) * | 2011-12-19 | 2012-06-13 | 杭州新颖氧舱有限公司 | Double-airbag breathing apparatus |
US9498589B2 (en) | 2011-12-31 | 2016-11-22 | Covidien Lp | Methods and systems for adaptive base flow and leak compensation |
FR2985191B1 (en) * | 2012-01-03 | 2014-03-14 | Air Liquide | LOOP CIRCUIT GAS DISTRIBUTION DEVICE AND BUFFER RESERVOIR |
CA2863077A1 (en) | 2012-01-23 | 2013-08-01 | Aeon Research And Tecnology, Llc | Modular pulmonary treatment system |
US8844526B2 (en) | 2012-03-30 | 2014-09-30 | Covidien Lp | Methods and systems for triggering with unknown base flow |
US9144658B2 (en) | 2012-04-30 | 2015-09-29 | Covidien Lp | Minimizing imposed expiratory resistance of mechanical ventilator by optimizing exhalation valve control |
US10226591B1 (en) * | 2012-09-25 | 2019-03-12 | Cleveland Medical Devices Inc. | Methods and devices for carbon dioxide-based sleep disorder therapy |
USD731049S1 (en) | 2013-03-05 | 2015-06-02 | Covidien Lp | EVQ housing of an exhalation module |
USD692556S1 (en) | 2013-03-08 | 2013-10-29 | Covidien Lp | Expiratory filter body of an exhalation module |
USD701601S1 (en) | 2013-03-08 | 2014-03-25 | Covidien Lp | Condensate vial of an exhalation module |
USD731048S1 (en) | 2013-03-08 | 2015-06-02 | Covidien Lp | EVQ diaphragm of an exhalation module |
USD731065S1 (en) | 2013-03-08 | 2015-06-02 | Covidien Lp | EVQ pressure sensor filter of an exhalation module |
USD736905S1 (en) | 2013-03-08 | 2015-08-18 | Covidien Lp | Exhalation module EVQ housing |
USD693001S1 (en) | 2013-03-08 | 2013-11-05 | Covidien Lp | Neonate expiratory filter assembly of an exhalation module |
USD744095S1 (en) | 2013-03-08 | 2015-11-24 | Covidien Lp | Exhalation module EVQ internal flow sensor |
US9981096B2 (en) | 2013-03-13 | 2018-05-29 | Covidien Lp | Methods and systems for triggering with unknown inspiratory flow |
US9950135B2 (en) | 2013-03-15 | 2018-04-24 | Covidien Lp | Maintaining an exhalation valve sensor assembly |
US8900169B2 (en) | 2013-03-15 | 2014-12-02 | Tbi Innovations, Llc | Methods and devices to reduce the likelihood of injury from concussive or blast forces |
US9808591B2 (en) | 2014-08-15 | 2017-11-07 | Covidien Lp | Methods and systems for breath delivery synchronization |
HUP1400421A2 (en) | 2014-09-10 | 2016-03-29 | Gyarmathy Agnes Dr Pomozine | Instrument for adjusting and/or controlling co2 content of inhaled air |
US9950129B2 (en) | 2014-10-27 | 2018-04-24 | Covidien Lp | Ventilation triggering using change-point detection |
US9925346B2 (en) | 2015-01-20 | 2018-03-27 | Covidien Lp | Systems and methods for ventilation with unknown exhalation flow |
USD775345S1 (en) | 2015-04-10 | 2016-12-27 | Covidien Lp | Ventilator console |
CN108601598A (en) | 2015-11-16 | 2018-09-28 | Q30运动科学公司 | Traumatic brain injury protective device |
EA201891834A1 (en) | 2016-03-02 | 2019-02-28 | Кью30 Спортс Сайенс, Ллк | METHODS AND DEVICES TO REDUCE DAMAGE TO EFFECTS OF A STRONG SHOCK OR EFFECTS CAUSING SHOCKING AT THE SUBJECT |
CN109481808B (en) * | 2019-01-11 | 2021-02-02 | 滨州医学院 | Repeat breathing device |
FR3096583B1 (en) * | 2019-05-27 | 2021-05-28 | Air Liquide | Device for decomposing N2O present in gas exhaled by a patient |
US11324954B2 (en) | 2019-06-28 | 2022-05-10 | Covidien Lp | Achieving smooth breathing by modified bilateral phrenic nerve pacing |
US11896767B2 (en) | 2020-03-20 | 2024-02-13 | Covidien Lp | Model-driven system integration in medical ventilators |
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-
2000
- 2000-03-31 CA CA002304292A patent/CA2304292C/en not_active Expired - Fee Related
- 2000-10-02 US US09/676,899 patent/US6622725B1/en not_active Expired - Lifetime
-
2001
- 2001-03-30 DE DE60130438T patent/DE60130438T2/en not_active Expired - Lifetime
- 2001-03-30 EP EP01919026A patent/EP1267978B1/en not_active Expired - Lifetime
- 2001-03-30 AT AT01919026T patent/ATE372802T1/en not_active IP Right Cessation
- 2001-03-30 AU AU2001246266A patent/AU2001246266A1/en not_active Abandoned
- 2001-03-30 WO PCT/CA2001/000404 patent/WO2001074433A1/en active IP Right Grant
-
2002
- 2002-03-08 US US10/093,797 patent/US6612308B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20030000525A1 (en) | 2003-01-02 |
US6622725B1 (en) | 2003-09-23 |
US6612308B2 (en) | 2003-09-02 |
EP1267978A1 (en) | 2003-01-02 |
CA2304292A1 (en) | 2001-09-30 |
DE60130438D1 (en) | 2007-10-25 |
WO2001074433A1 (en) | 2001-10-11 |
EP1267978B1 (en) | 2007-09-12 |
DE60130438T2 (en) | 2008-06-12 |
CA2304292C (en) | 2009-01-13 |
ATE372802T1 (en) | 2007-09-15 |
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