CA2460773A1 - Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilisation of fresh gases - Google Patents

Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilisation of fresh gases Download PDF

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Publication number
CA2460773A1
CA2460773A1 CA002460773A CA2460773A CA2460773A1 CA 2460773 A1 CA2460773 A1 CA 2460773A1 CA 002460773 A CA002460773 A CA 002460773A CA 2460773 A CA2460773 A CA 2460773A CA 2460773 A1 CA2460773 A1 CA 2460773A1
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CA
Canada
Prior art keywords
tube
circuit
conduit
distal
gases
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Granted
Application number
CA002460773A
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French (fr)
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CA2460773C (en
Inventor
Atsuo F. Fukunaga
Alex S. Fukunaga
Blanca M. Fukunaga
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Ambu AS
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Individual
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Priority to CA2767462A priority Critical patent/CA2767462C/en
Publication of CA2460773A1 publication Critical patent/CA2460773A1/en
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Publication of CA2460773C publication Critical patent/CA2460773C/en
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Expired - Lifetime legal-status Critical Current

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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
    • A61M16/105—Filters
    • 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
    • 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
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0081—Bag or bellow in a bottle
    • 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
    • A61M16/08—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
    • A61M16/10—Preparation of respiratory gases or vapours
    • 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
    • A61M16/0057—Pumps therefor
    • A61M16/0078—Breathing bags
    • 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
    • A61M16/22—Carbon dioxide-absorbing devices ; Other means for removing carbon dioxide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/911—Unilimb inhalation-exhalation breathing tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/912—Connections and closures for tubes delivering fluids to or from the body

Abstract

A breathing circuit comprising first (30) and second (40) conduits is disclosed, wherein at least one of the conduits is a non-conventional conduit.
A multi-lumen unilimb breathing circuit is also disclosed having first (30) and second (40) conduits, wherein when the proximal ends of the first (30) and second (40) conduits are each connected to an inlet (10) and outlet (20) fitting, respectively, movement of the distal end of the first conduit (30) causes a corresponding movement of the distal end of the second conduit (40).
In an embodiment, at least one of said conduits is coiled. In another embodiment, a coiled conduit (30) is contained within an outer flexible conduit (40) that is axially extendable and compressible, forming a unilimb multilumen respiratory circuit. The outer flexible conduit (40) may be pleated to provide for axial extension and contraction. The multilumen respiratory circuit can provide a variable rebreathing volume. Also disclosed are methods and systems of optimizing utilization of fresh gas during artificial or assisted ventilation, including administering anesthesia.

Claims (21)

1. ~ A multilumen respiratory circuit comprising first and second conduits, each of said conduits having a proximal and a distal end, wherein said proximal end of said first conduit can be operatively connected to an inlet for respiratory gases and said second conduit can be operatively connected to an outlet for respiratory gases, and axial extension or contraction of the distal end of said second conduit causes a corresponding axial extension or contraction of the distal end of said first conduit.
2. The circuit of claim 1, wherein said circuit is a unilimb circuit.
3. The circuit of claim 1, wherein said first conduit comprises a first coiled tube, and said first conduit will expand or contract in length with corresponding expansion or contraction of said second conduit.
4. The circuit of claim 1, wherein at least a portion of said first conduit is contained within said second conduit.
5. The circuit of claim 3, having an arrangement selected from the group consisting of (a) wherein said second conduit comprises a second coiled tube, (b) wherein at least a portion of said first conduit comprises a first coiled tube coiled about at least a portion of said second conduit, (c) wherein said second conduit comprises a second coiled tube, wherein said first and second tubes have distal and proximal ends, and the distal ends of said first and second tubes are operatively connected, and (d) wherein said second conduit comprises a second coiled tube, wherein at least a portion of said first and second tubes are in parallel coiled relationship.
6. The circuit of claim 1, wherein said first and second conduits have a common proximal fitting at the proximal ends thereof.
7. ~The circuit of claim 6, wherein said first and second conduits have a common distal fitting at the distal ends thereof.
8. ~The circuit of claim 7, wherein said distal fitting comprises rigid spaced or direct connection of the distal end of said first conduit to said distal end of said second conduit.
9. ~The circuit of claim 8, wherein said distal fitting provides for adjustment of the axial distance between the distal end of said first conduit and the distal end of said second conduit.
10. A multilumen breathing circuit comprising first and second tubes, each of said tubes having a proximal and a distal end, wherein said proximal end of said first tube can be connected to an inlet for respiratory gases and said proximal end of said second tube can be connected to an outlet for respiratory gases, wherein at least one of said tubes can radially collapse when not in use.
11. The circuit of claim 10, wherein said tubes have an arrangement selected from the group consisting of (a) at least a portion of one tube is contained within the other, (b) said tubes are connected at periodic locations on their exteriors, and (c) said tubes are connected at the distal end by a distal fitting and at least a portion of said tubes are substantially spaced apart.
12. The circuit of claim 10, wherein said at least one tube that can radially collapse, when inflated at pressures encountered in providing assisted ventilation and/or anesthesia to humans and other mammals, has a compliance of less than about 20%.
13. The circuit of claim 10, wherein said at least one tube that can radially collapse, when inflated at pressures encountered in providing assisted ventilation and/or anesthesia to humans and other mammals, has a compliance of less than about 10%.
14. ~The circuit of claim 10, wherein said at least one tube that can radially collapse has a minimum cross-sectional area when fully inflated and can collapse when not in use so that the collapsed cross-sectional area of said minimum cross-sectional area when fully inflated is less than about 90% of said inflated cross-sectional area.
15. The circuit of claim 12, wherein said at least one tube that can radially collapse has a minimum cross-sectional area when fully inflated and can collapse when not in use so that the collapsed cross-sectional area of said minimum cross-sectional area when fully inflated is less than about 10% of said inflated cross-sectional area.
16. A ventilation or anesthesia system, comprising a recirculation module, a rebreathing tube operatively connected at its proximal end opening to the recirculation module for providing expired gases to and receiving gases from the recirculation module, and a distal input for fresh gases, wherein said distal input is located in the distal portion of said rebreathing tube or in a distal fitting operatively connected to said distal end of said rebreathing tube, wherein said rebreathing tube has an adjustable volume proximal of said distal input, wherein the concentration of fresh gases administered to a patient or mammal connected to said system may be adjusted by adjustment of the volume of said rebreathing tube volume proximal of said distal input.
17. The system of claim 16, wherein said recirculation module comprises a scrubbing circuit.
18. A method for providing anesthetic and respiratory gases at low flows to a human or other mammal, comprising providing a patient with a fresh gas flow of desired gases and a scrubbed gas flow of recirculated gases, wherein the fresh gas flow and scrubbed gas flow are provided to the human or other mammal via a breathing circuit having a distal and proximal end and comprising a first tube and a second tube, wherein the second tube has a distal end and a proximal end, wherein the proximal end of the second tube is operatively connected to a scrubbing module for scrubbing and recirculating at least a portion of expired gases received thereby, and the first tube has an output that is operatively connected to said distal end of said circuit, wherein the first tube provides fresh gases to the human or other mammal via the distal end of the circuit.
19. ~The method of claim 18, wherein said second tube has an adjustable volume proximal of the first tube connection with the circuit, wherein the concentration of fresh gases administered may be adjusted by adjustment of the volume of said second tube.
20. The method of claim 18, wherein fresh gases are provided at a volume of about 0.5 liter per minute to 5 L/min.
21. The method of claim 18, wherein the F I/ F D concentration ratio is maintained at more than about 0.80 by adjusting the volume of the second tube.
CA2460773A 2001-09-24 2002-09-24 Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilisation of fresh gases Expired - Lifetime CA2460773C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2767462A CA2767462C (en) 2001-09-24 2002-09-24 Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US32455401P 2001-09-24 2001-09-24
US60/324,554 2001-09-24
US34020601P 2001-12-12 2001-12-12
US60/340,206 2001-12-12
US10/254,700 2002-09-24
US10/254,700 US6874500B2 (en) 2001-09-24 2002-09-24 Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases
PCT/US2002/030537 WO2003026721A2 (en) 2001-09-24 2002-09-24 Breathing circuits having unconventional respiratory conduits and systems and methods for optimising utilisation of fresh gases

Related Child Applications (1)

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CA2767462A Division CA2767462C (en) 2001-09-24 2002-09-24 Breathing circuits having unconventional respiratory conduits and systems and methods for optimizing utilization of fresh gases

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CA2460773A1 true CA2460773A1 (en) 2003-04-03
CA2460773C CA2460773C (en) 2012-04-10

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US (2) US6874500B2 (en)
EP (1) EP1432475B1 (en)
JP (1) JP4348182B2 (en)
CN (1) CN100512910C (en)
AT (1) ATE328629T1 (en)
AU (1) AU2002327732B2 (en)
BR (1) BR0212774B1 (en)
CA (1) CA2460773C (en)
DE (1) DE60212158T2 (en)
ES (1) ES2266559T3 (en)
HK (1) HK1073807A1 (en)
MX (1) MXPA04002687A (en)
NZ (1) NZ532166A (en)
PT (1) PT1432475E (en)
WO (1) WO2003026721A2 (en)

Families Citing this family (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA04002687A (en) 2001-09-24 2004-06-18 Atsuo F Fukunaga Breathing circuits having unconventional respiratory conduits and systems and methods for optimising utilisation of fresh gases.
US7717109B2 (en) * 2001-09-24 2010-05-18 F-Concepts Llc Breathing systems with post-inspiratory valve fresh gas flow input, components for implementing same, and methods of use
US6953465B2 (en) * 2002-03-25 2005-10-11 Concentric Medical, Inc. Containers and methods for delivering vaso-occluding filaments and particles
AU2003290378A1 (en) * 2002-12-12 2004-06-30 Oleg Bassovitch Breathing apparatus for hypoxic pre-acclimatization and training
GB0302196D0 (en) * 2003-01-30 2003-03-05 Boc Group Plc Medical apparatus
CA2521181C (en) * 2003-02-18 2014-04-29 Joseph Fisher Breathing circuits to facilitate the measurement of cardiac output during controlled and spontaneous ventilation
US7007691B2 (en) * 2003-05-13 2006-03-07 Roger Daugherty Apparatus and method for humidification of inspired gases
US7152597B2 (en) * 2003-09-25 2006-12-26 Datex-Ohmeda, Inc. Breathing circuit adapter
US7503325B2 (en) 2003-09-30 2009-03-17 The Research Foundation Of State University Of New York Device and method of partially separating gas
US7178521B2 (en) * 2004-01-09 2007-02-20 King Systems Corporation Adjustable length breathing circuit
WO2006125252A1 (en) * 2005-05-23 2006-11-30 Resmed Limited Connector system for an apparatus that delivers breathable gas to a patient
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
US8316848B2 (en) 2005-08-15 2012-11-27 Resmed Limited CPAP systems
US9937312B2 (en) * 2006-07-28 2018-04-10 Resmed Limited Delivery of respiratory therapy with foam interface
CN101516427B (en) 2006-07-28 2012-08-08 雷斯梅德有限公司 Delivery of respiratory therapy
JP5911189B2 (en) 2006-12-15 2016-04-27 レスメド・リミテッドＲｅｓＭｅｄ Ｌｉｍｉｔｅｄ Respiratory therapy
FR2914192B1 (en) * 2007-04-02 2010-03-26 Georges Boussignac RESPIRATORY PROBE.
US7900633B2 (en) * 2007-04-12 2011-03-08 Sinha Shailendra K Breathing circuit
US10034995B2 (en) 2007-09-20 2018-07-31 Resmed Limited Retractable tube for CPAP
EP2209514B1 (en) * 2007-11-12 2015-08-12 Maquet Critical Care AB Regulation of delivery of multiple anesthetic agents to a patient from an anesthetic breathing apparatus
CN101896216B (en) 2007-11-14 2013-07-31 马奎特紧急护理公司 Patient cassette with variable patient circuit volume
AU2009245393B2 (en) * 2008-05-07 2014-07-17 Koninklijke Philips Electronics, N.V. Exhaust assembly
DE102008022663B4 (en) 2008-05-07 2012-10-31 Schauenburg Hose Technology Gmbh Stretch hose
US9505164B2 (en) 2009-12-30 2016-11-29 Schauenburg Technology Se Tapered helically reinforced hose and its manufacture
DE102008022924A1 (en) * 2008-05-09 2009-11-12 Siemens Aktiengesellschaft Device for medical intervention, has medical instrument which is inserted in moving body area of patient, and robot with multiple free moving space grades
US8539953B2 (en) * 2008-11-19 2013-09-24 John E. Moenning, Jr. Combination anesthesia and scavenger surgical mask
DE102009013396B3 (en) * 2009-03-16 2010-08-05 Dräger Medical AG & Co. KG Apparatus and method for controlling the oxygen dosage of a ventilator
US9964238B2 (en) 2009-01-15 2018-05-08 Globalmed, Inc. Stretch hose and hose production method
US8267081B2 (en) 2009-02-20 2012-09-18 Baxter International Inc. Inhaled anesthetic agent therapy and delivery system
US8460272B2 (en) * 2009-05-22 2013-06-11 Susan Leeds Kudo Method and apparatus for extensible intravenous drip line
CN102639029B (en) 2009-11-28 2014-10-15 利纳克有限公司 Telescopic column, preferably for furniture
GB201006480D0 (en) 2010-04-19 2010-06-02 Intersurgical Ag Improvements relating to respiratory apparatus
US8555887B2 (en) 2010-04-30 2013-10-15 Covidien Lp Tracheal tube with dividing membrane
US9968750B2 (en) * 2010-06-30 2018-05-15 St. Michael's Hospital Method and system for patient-synchronized ventilatory assist with endotracheal through-flow
US9067037B2 (en) 2010-09-10 2015-06-30 Carefusion 207, Inc Adjusting a position of a heating wire within a breathing circuit
US20120060836A1 (en) * 2010-09-10 2012-03-15 Michael El-Shammaa Patient circuit for improved support delivery
US10076625B2 (en) 2011-04-29 2018-09-18 Robert Tero Nasal interface device
US10080866B2 (en) 2011-06-03 2018-09-25 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
EP2755710B1 (en) 2011-09-13 2018-05-23 ResMed Limited Vent arrangement for respiratory mask
US9032954B2 (en) * 2011-10-01 2015-05-19 Jerome Bernstein Anesthesia machine CO2 absorber bypass
US9687619B2 (en) 2011-11-08 2017-06-27 Resmed Limited Electrically stimulated mask and/or associated components
DE102011055439A1 (en) * 2011-11-17 2013-05-23 Hamilton Bonaduz Ag Hose for a ventilation system
WO2013112470A1 (en) 2012-01-23 2013-08-01 Aeon Research And Tecnology, Llc Modular pulmonary treatment system
WO2013137753A1 (en) 2012-03-15 2013-09-19 Fisher & Paykel Healthcare Limited Respiratory gas humidification system
GB2577634B (en) 2012-04-27 2020-09-30 Fisher & Paykel Healthcare Ltd Respiratory humidification apparatus
US10076619B2 (en) 2012-09-11 2018-09-18 Resmed Limited Vent arrangement for respiratory mask
CN104955510B (en) 2012-11-14 2017-05-10 费雪派克医疗保健有限公司 Zone heating for respiratory circuits
WO2014088430A1 (en) * 2012-12-04 2014-06-12 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
ES2773718T3 (en) 2012-12-04 2020-07-14 Mallinckrodt Hospital Products Ip Ltd Cannula to minimize dissolution of the dosage during administration of nitric oxide
US9795756B2 (en) 2012-12-04 2017-10-24 Mallinckrodt Hospital Products IP Limited Cannula for minimizing dilution of dosing during nitric oxide delivery
WO2014165116A1 (en) * 2013-03-13 2014-10-09 Teleflex Medical Incorporated Multi-lumen breathing circuit including a flexible printed circuit board assembly
US10328222B2 (en) 2013-03-14 2019-06-25 ResMed Pty Ltd Vent device for use with a respiratory device
NZ777422A (en) 2013-03-14 2023-01-27 ResMed Pty Ltd Vent arrangement for a respiratory device
CA3093754A1 (en) * 2013-03-15 2014-09-18 Fisher & Paykel Healthcare Limited Components for medical circuits
US10828446B2 (en) 2013-09-12 2020-11-10 Mayo Foundation For Medical Education And Research Insulated endotracheal devices and systems for transpulmonary thermal transfer
CN105764560B (en) 2013-09-13 2018-04-06 费雪派克医疗保健有限公司 Connection for humidification system
US10814091B2 (en) 2013-10-24 2020-10-27 Fisher & Paykel Healthcare Limited System for delivery of respiratory gases
BR122017027113B1 (en) 2013-12-20 2022-07-19 Fisher & Paykel Healthcare Limited CIRCUIT CONNECTOR FOR HUMIDIFICATION SYSTEM, BASE UNIT AND CONDUIT
US10449319B2 (en) 2014-02-07 2019-10-22 Fisher & Paykel Healthcare Limited Respiratory humidification system
JP6731398B2 (en) 2014-03-17 2020-07-29 フィッシャー アンド ペイケル ヘルスケア リミテッド Medical tubing for respiratory system
US11324911B2 (en) 2014-06-03 2022-05-10 Fisher & Paykel Healthcare Limited Flow mixers for respiratory therapy systems
RU2552501C1 (en) * 2014-06-10 2015-06-10 Борис Владимирович Смоляров Breathing gas flow generator
DE102014011188B4 (en) * 2014-07-31 2018-07-19 Drägerwerk AG & Co. KGaA Flexible, detachable, coaxial hose system
JP6843759B2 (en) 2015-03-31 2021-03-17 フィッシャー アンド ペイケル ヘルスケア リミテッド User interface and system for supplying gas to the airways
CN204798549U (en) * 2015-05-08 2015-11-25 深圳安维森实业有限公司 Well minute pipe assembly that contains multi -functional adapter
TWI720015B (en) 2015-09-09 2021-03-01 紐西蘭商費雪派克保健有限公司 Zone heating for respiratory circuits
WO2017070696A1 (en) 2015-10-24 2017-04-27 Kings Systems Corporation Breathing circuit systems and devices
JP2019505355A (en) * 2016-02-22 2019-02-28 トリヴィクラムＴｒｉｖｉｋｒａｍ Respiratory management device
CN108697309B (en) * 2016-03-16 2020-10-16 奥林巴斯株式会社 Medical tubing component
GB2567998B (en) 2016-08-11 2022-07-20 Fisher & Paykel Healthcare Ltd A collapsible conduit, patient interface and headgear connector
WO2018106126A1 (en) 2016-12-07 2018-06-14 Fisher And Paykel Healthcare Limited Sensing arrangements for medical devices
EP3544662A4 (en) 2016-12-22 2020-07-29 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
EP3565700A4 (en) 2017-01-30 2020-01-15 GlobalMed, Inc. Heated respiratory hose assembly
JP6901799B2 (en) * 2017-04-24 2021-07-14 株式会社タカギ Hose structure
CN107569232B (en) * 2017-09-25 2020-02-14 哈尔滨医科大学 Anti-blocking type nasopharynx sampling gas partial pressure monitoring catheter
CN111479606B (en) * 2017-12-15 2023-12-22 马奎特紧急护理公司 Modular respiratory gas separator unit
GB2574434B (en) * 2018-06-06 2022-04-20 James Couzyn Rhys Counterlung for a rebreathing apparatus
CN109758655A (en) * 2019-02-12 2019-05-17 陈希迅 A kind of Cardiological dual respiration device
KR102204642B1 (en) * 2019-03-04 2021-01-19 고려대학교 산학협력단 Device for preventing the healthcare provider infection during artificial respiration
KR102239294B1 (en) * 2019-03-28 2021-04-12 한국기계연구원 System for measuring concentration of propofol and method for measuring the concentration of propofol using the same

Family Cites Families (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT93941B (en) 1913-11-12 1923-08-10 Draegerwerk Heinr U Bernh Independent respiratory system.
US3092465A (en) * 1960-03-25 1963-06-04 Miles Lab Diagnostic test device for blood sugar
DE1598153C3 (en) * 1966-11-22 1973-11-22 Boehringer Mannheim Gmbh, 6800 Mannheim Diagnostic means for the detection of the constituents of body fluids
GB1270946A (en) 1968-07-22 1972-04-19 British Oxygen Co Ltd Breathing tube assembly
US3556097A (en) 1969-09-25 1971-01-19 Air Reduction Disposable anesthesia-breathing circuit unit
US3713440A (en) 1971-01-18 1973-01-30 P Nicholes Filtration system
US3723064A (en) * 1971-07-26 1973-03-27 L Liotta Method and device for determining the concentration of a material in a liquid
US3856051A (en) 1972-02-28 1974-12-24 J Bain Flexible tube device
US4007737A (en) 1974-01-28 1977-02-15 Paluch Bernard R Anesthesia breathing system
US4042335A (en) * 1975-07-23 1977-08-16 Eastman Kodak Company Integral element for analysis of liquids
US4148732A (en) 1977-04-05 1979-04-10 Burrow Clovis E Bacteria filter unit
US4188946A (en) 1977-10-07 1980-02-19 Rayburn Robert L Controllable partial rebreathing anesthesia circuit and respiratory assist device
US4269194A (en) 1978-02-13 1981-05-26 Rayburn Robert L Carbon dioxide measurement from expired gases in a partial rebreathing anesthesia circuit
US4367769A (en) 1978-07-17 1983-01-11 James Bain Safety connector for flexible tube device
US4232667A (en) 1978-09-05 1980-11-11 Jack Chalon Single limb breathing circuit assembly and absorber
US4265235A (en) 1979-05-11 1981-05-05 Fukunaga Atsuo F Anesthetic system
DE2929584A1 (en) 1979-07-21 1981-02-05 Draegerwerk Ag MOISTURE EXCHANGER IN BREATHING DEVICES
US4657532A (en) 1985-07-19 1987-04-14 Thomas Jefferson University Intra-peritoneal perfusion of oxygenated fluorocarbon
SE430304B (en) 1980-09-01 1983-11-07 Testa Lab A S ANESTHESIA RESPIRATORY EQUIPMENT
US4676239A (en) * 1980-09-20 1987-06-30 David Humphrey Anesthetic system
US4336798A (en) * 1980-10-06 1982-06-29 Anthony V. Beran Medical corrugated respiratory tube
US4462397A (en) 1981-04-03 1984-07-31 Terumo Corporation Breathing circuit
US4391271A (en) 1981-04-06 1983-07-05 Albert Blanco Respirator circuit
US4463755A (en) 1981-05-18 1984-08-07 Terumo Corporation Breathing circuit
US4621634A (en) 1984-01-27 1986-11-11 Trutek Research, Inc. Anesthesia tubing connections
US4596246A (en) 1984-02-24 1986-06-24 Lyall Robert N Method and apparatus for converting patient breathing system between circle and non-rebreathing configurations
EP0181867A1 (en) 1984-05-18 1986-05-28 CLAWSON, Burrell E. Respiratory system corrugated flow lines and fittings
US4637406A (en) * 1984-08-09 1987-01-20 Hesston Corporation Chaff and straw spreading attachment for combines
US4637384A (en) 1985-02-15 1987-01-20 The Boc Group, Inc. Coaxial breathing circuit
DE3680999D1 (en) * 1985-05-29 1991-09-26 Artificial Sensing Instr Asi A OPTICAL SENSOR FOR SELECTIVE DETECTION OF SUBSTANCES AND DETECTION OF REFRIGERATION CHANGES IN MEASURING SUBSTANCES.
US4935346A (en) * 1986-08-13 1990-06-19 Lifescan, Inc. Minimum procedure system for the determination of analytes
US5002050A (en) * 1986-09-17 1991-03-26 Mcginnis Gerald E Medical gas flow control valve, system and method
US5623922A (en) 1986-09-23 1997-04-29 Smith; Charles A. Insulated breathing tube
US5377670A (en) 1986-09-23 1995-01-03 Smith; Charles A. Insulated breathing tube
US4838258A (en) * 1987-10-26 1989-06-13 Gibeck-Dryden Corporation Gas sampling lumen for breathing system
US4809706A (en) 1988-01-13 1989-03-07 Watson Robert L Incentive inhalation spirometer apparatus
US4967744A (en) 1988-11-03 1990-11-06 Airoflex Medical, Inc. Flexible breathing circuit
US4938210A (en) 1989-04-25 1990-07-03 Trudell Medical Inhalation chamber in ventilator circuit
GB8911627D0 (en) 1989-05-19 1989-07-05 Intersurgical Guernsey Ltd Improvements in filters
CA2004930C (en) 1989-12-08 1996-04-02 John Richard Sikora Anaesthetic and respirator breathing circuit device
US5140983A (en) 1990-04-11 1992-08-25 Jinotti Walter J Multi purpose catheter assembly
US5088486A (en) 1990-04-11 1992-02-18 Jinotti Walter J Closed system reusable dual purpose catheter
NZ238544A (en) 1990-06-18 1994-10-26 Ponnet Gilman En Anthony Respirator with hygroscopic material adjacent outlet to patient
ES2089054T3 (en) 1990-06-18 1996-10-01 Engstrom Medical Ab CONNECTOR IN THE FORM OF AND FOR AN ASSISTED BREATHING DEVICE.
US5320093A (en) 1990-12-21 1994-06-14 Brigham And Women's Hospital Rapid anesthesia emergence system using closed-loop PCO2 control
US5284160A (en) 1991-11-13 1994-02-08 Dryden Gale E Consolidated anesthesia circuit
US5223219A (en) * 1992-04-10 1993-06-29 Biotrack, Inc. Analytical cartridge and system for detecting analytes in liquid samples
US5230727A (en) 1992-06-05 1993-07-27 Cybermedic, Inc. Air filter for medical ventilation equipment and the like
EP0590289A1 (en) 1992-09-28 1994-04-06 Engström Medical Ab Patient connector
US5398675A (en) * 1992-10-14 1995-03-21 Henkin; Melvyn L. Anesthesia rebreathing system
US5508200A (en) * 1992-10-19 1996-04-16 Tiffany; Thomas Method and apparatus for conducting multiple chemical assays
US5404873A (en) 1993-06-16 1995-04-11 King System Corporation Division Of Barco Molding, Inc. Anesthesia circuit
US5841126A (en) * 1994-01-28 1998-11-24 California Institute Of Technology CMOS active pixel sensor type imaging system on a chip
US5823184A (en) * 1994-04-18 1998-10-20 Tyco International (Us) Inc. Breathing circuit
JP3678750B2 (en) 1995-03-28 2005-08-03 バラード メディカル プロダクツ Anti-contamination catheter sheath with filter or closure barrier
US5701181A (en) * 1995-05-12 1997-12-23 Bayer Corporation Fiber optic diffuse light reflectance sensor utilized in the detection of occult blood
US6241862B1 (en) * 1996-02-14 2001-06-05 Inverness Medical Technology, Inc. Disposable test strips with integrated reagent/blood separation layer
DE19629657A1 (en) * 1996-07-23 1998-01-29 Boehringer Mannheim Gmbh Volume-independent diagnostic test carrier and method for determining analyte with its aid
US5901705A (en) * 1996-10-17 1999-05-11 King Systems Corporation Sleeved filter for a breathing circuit
AU5166198A (en) * 1996-11-08 1998-05-29 Mercury Diagnostics Inc. Opaque reaction matrix for the analysis of whole blood
US5722391A (en) * 1996-11-12 1998-03-03 Par Medical, Inc. Anesthesia tube assembly
US5778872A (en) 1996-11-18 1998-07-14 Medlis, Inc. Artificial ventilation system and methods of controlling carbon dioxide rebreathing
US6003511A (en) 1996-11-18 1999-12-21 Medlis Corp. Respiratory circuit terminal for a unilimb respiratory device
US6027459A (en) * 1996-12-06 2000-02-22 Abbott Laboratories Method and apparatus for obtaining blood for diagnostic tests
US6306098B1 (en) 1996-12-19 2001-10-23 Novametrix Medical Systems Inc. Apparatus and method for non-invasively measuring cardiac output
CA2283430C (en) * 1997-03-19 2006-05-23 Joseph A. Fisher Elimination of vapour anaesthetics from patients after surgical procedures
US5948695A (en) * 1997-06-17 1999-09-07 Mercury Diagnostics, Inc. Device for determination of an analyte in a body fluid
US6079410A (en) * 1998-07-06 2000-06-27 Q.D.S. Injection Molding, Inc. Collapsible snorkel
US6152131A (en) 1998-08-26 2000-11-28 Instrumentarium Corp. Method and apparatus for detecting an empty breathing gas compartment in a patient ventilator
GB9821393D0 (en) 1998-10-01 1998-11-25 Brax Genomics Ltd Protein profiling 2
US6591836B1 (en) 1999-08-03 2003-07-15 The Research Foundation Of State University Of New York Device and method of reducing bias flow in oscillatory ventilators
US6408848B1 (en) * 2000-03-28 2002-06-25 Ntc Technology, Inc. Method and apparatus for conveniently setting a predetermined volume for re-breathing
US6555061B1 (en) * 2000-10-05 2003-04-29 Lifescan, Inc. Multi-layer reagent test strip
CA2448681C (en) * 2001-06-12 2014-09-09 Pelikan Technologies, Inc. Integrated blood sampling analysis system with multi-use sampling module
US7025774B2 (en) * 2001-06-12 2006-04-11 Pelikan Technologies, Inc. Tissue penetration device
EP1621224A3 (en) 2001-09-24 2006-04-19 FUKUNAGA, Atsuo F. Breathing circuit having an adjustable volume and length
MXPA04002687A (en) 2001-09-24 2004-06-18 Atsuo F Fukunaga Breathing circuits having unconventional respiratory conduits and systems and methods for optimising utilisation of fresh gases.
US7717109B2 (en) 2001-09-24 2010-05-18 F-Concepts Llc Breathing systems with post-inspiratory valve fresh gas flow input, components for implementing same, and methods of use
US6847451B2 (en) * 2002-05-01 2005-01-25 Lifescan, Inc. Apparatuses and methods for analyte concentration determination
US7178521B2 (en) * 2004-01-09 2007-02-20 King Systems Corporation Adjustable length breathing circuit

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HK1073807A1 (en) 2005-10-21
DE60212158T2 (en) 2007-04-19
MXPA04002687A (en) 2004-06-18
JP4348182B2 (en) 2009-10-21
CN100512910C (en) 2009-07-15
EP1432475B1 (en) 2006-06-07
WO2003026721A2 (en) 2003-04-03
PT1432475E (en) 2006-10-31
US20050039747A1 (en) 2005-02-24
BR0212774B1 (en) 2011-11-29
DE60212158D1 (en) 2006-07-20
EP1432475A2 (en) 2004-06-30
CA2460773C (en) 2012-04-10
EP1432475A4 (en) 2005-01-12
ATE328629T1 (en) 2006-06-15
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AU2002327732B2 (en) 2008-09-25
NZ532166A (en) 2007-01-26
ES2266559T3 (en) 2007-03-01
US7275541B2 (en) 2007-10-02
CN1589167A (en) 2005-03-02
US20030075176A1 (en) 2003-04-24
US6874500B2 (en) 2005-04-05
JP2005503869A (en) 2005-02-10

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