EP1778328A1 - Sac reservoir de gaz, boitier distributeur, masque respiratoire et procede de respiration - Google Patents

Sac reservoir de gaz, boitier distributeur, masque respiratoire et procede de respiration

Info

Publication number
EP1778328A1
EP1778328A1 EP05774437A EP05774437A EP1778328A1 EP 1778328 A1 EP1778328 A1 EP 1778328A1 EP 05774437 A EP05774437 A EP 05774437A EP 05774437 A EP05774437 A EP 05774437A EP 1778328 A1 EP1778328 A1 EP 1778328A1
Authority
EP
European Patent Office
Prior art keywords
bag
gas
gas reservoir
port
outer bag
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.)
Withdrawn
Application number
EP05774437A
Other languages
German (de)
English (en)
Inventor
Jürgen Reinstädtler
Eckard Glaser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vyaire Medical GmbH
Original Assignee
Viasys Healthcare GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Viasys Healthcare GmbH filed Critical Viasys Healthcare GmbH
Publication of EP1778328A1 publication Critical patent/EP1778328A1/fr
Withdrawn legal-status Critical Current

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
    • A61M16/0057—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
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M16/0009—Accessories therefor, e.g. sensors, vibrators, negative pressure with sub-atmospheric pressure, e.g. during expiration
    • 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
    • A61M16/06—Respiratory or anaesthetic masks
    • 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
    • A61M16/08—Bellows; Connecting tubes ; Water traps; Patient circuits
    • A61M16/0816—Joints or connectors
    • A61M16/0833—T- or Y-type connectors, e.g. Y-piece
    • 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
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • 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
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves
    • A61M16/209—Relief valves
    • 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
    • A61M16/0066—Blowers or centrifugal pumps

Definitions

  • the invention relates to a gas reservoir bag referred to in the preamble of claim 1 species, to a distributor housing referred to in the preamble of claim 6 species, a respiratory mask and a ventilation method referred to in the preamble of claim 9 Art.
  • the invention relates to devices and accessories for the application of oxygen and other gases. Specifically, the invention relates to respiratory masks and gas reservoir bags therefor.
  • FIG. 2 of this application is shown in FIG. 1 of EP 1 402 915 A1, wherein the reference numbers have been retained.
  • Figure 2 shows a mask assembly 10 having a face piece 20, a hollow manifold housing 30 and a gas reservoir bag 40.
  • the face piece 20 has a clearing 27 to which the manifold housing 30 is connected.
  • the manifold housing 30 is a hollow structure with tubing having an inspiratory flow or arm 50 and an expiratory passage or arm 60.
  • the inspiratory arm directs the oxygen delivered through a gas inlet port 52 to the face piece 20.
  • the expiratory arm 60 drains the exhaled gas from the face piece 20 into the surrounding atmosphere via an outlet port 62.
  • the manifold housing 30 may further include a channel 70 that directs ambient air into the inspiratory arm 50 from the surrounding atmosphere.
  • the reservoir bag 40 may be connected to the end of the tubing of the inspiratory arm 50.
  • An inspiratory valve 54 is disposed in the inspiratory arm 50 between face piece 20 and gas reservoir bag 40.
  • the gas reservoir bag 40 serves only as a partition between the gas, usually oxygen, in its interior and the surrounding atmosphere. In the gas reservoir bag 40 so there is ambient pressure.
  • Installation valve 54 opens when inhaled, more precisely, when the pressure in the face piece 20 falls below the ambient pressure by 1, 5 mbar.
  • An exhalation valve 64 in the expiratory arm 60 opens upon exhalation so that the exhaled air flows from the facepiece 20 to the outlet port 62 where it is released into the environment.
  • a dilution valve 72 in the channel 70 opens upon inhalation when the gas reservoir bag 40 is empty and a lower gas flow is provided above the gas inlet port 52 than the gas flow needed by a patient in the instantaneous phase of the inspiration cycle.
  • the patient may additionally inhale ambient air via outlet port 62, channel 70, inspiratory arm 50, and face piece 20.
  • Anti-septum valve 56 which is redundant in EP 1 402915 A1, is provided in parallel with the proving valve 72.
  • Gas reservoir bag 40 has the purpose of temporarily storing gas supplied during expiration via gas inlet port 52 for subsequent inspiration.
  • NRM non-rebreathing mask
  • PRM partial rebreathing mask
  • the anatomical dead space is practically filled with cheap ambient air in place of expensive, oxygen-enriched air and this ambient air is released on exhalation largely without mixing with oxygen-enriched air from the alveoli back to the environment.
  • the ambient air inhaled at the end of the inspiratory phase and intended for the dead space is also enriched to a small extent with the gas supplied because the flow of the supplied gas is constant.
  • the oxygen flow is set much lower, so that the patient inhales partially pure oxygen and partially ambient air.
  • the oxygen content of exhaled air is about 16 percent. This is still sufficient, for example, to ventilate accident victims word-of-mouth.
  • gas reservoir bag 40 is completely emptied during each inspiration and should never be filled to the point, because otherwise the gas supplied via gas inlet port 52 escapes into the environment via valves 54 and 64.
  • the minimum volume of gas reservoir bag 40 depends on the needs of the patient, with 500 ml being a sufficient size for most intensive care patients.
  • EP 1 402 915 A1 has the goal of applying oxygen as effectively as possible and thus, for example, to extend the limited range of gas cylinders in ambulances. Another problem is that the exhaled air of a
  • the exhaled air may contain viruses or bacteria.
  • the gas supplied via gas inlet port 52 may contain medicine that may be hazardous to other patients. Therefore, at outlet port 62 a
  • Breathing apparatus or respirators for mechanical, artificial respiration in all forms of an oxygen deficiency state are also known. Among other things, they are used for long-term ventilation, with three basic types being distinguished, depending on the switchover mechanism from inhalation to expiration.
  • the pressure-controlled respirator the inspiration phase is completed when the device has reached a specified ventilation pressure.
  • a spirometer is installed, which measures the tidal volume of the patient.
  • these devices usually have audible or visual alarm signals.
  • time-controlled ventilators where the gas mixture within a previously entered time.
  • the expiration is usually passive, but can also be supported by a generation of negative pressure.
  • the newer type ventilators have technical, mostly electronically controlled, facilities that allow a patient-friendly type of ventilation.
  • the inspiratory time may be extended to three times the expiration time, pressurized breathing may be performed, and the respirator may be "triggered" by the patient, with even weak breaths providing the mechanical support (Roche Lexicon Medicine, 4th Edition, edited by the Hoffmann-La Roche AG and Urban & Fischer, Urban & Fischer, Kunststoff, Stuttgart, Jena, Lübeck, Ulm).
  • An advantage of a double-walled gas reservoir bag is that the inner bag can buffer an additional gas used during ventilation during expiration, while the outer bag absorbs the overpressure generated by a ventilator during inspiration.
  • An advantage of the introduction of the promoted by a ventilator air in the space between the inner and the outer bag is that the overpressure generated by the ventilator can be compensated in a simple manner. It is also surprisingly advantageous here that not even the inspiratory volume measured by the respirator is falsified by this procedure. The volume of air that flows into the space between the two bags and thus is not available for inspiration is replaced by gas from the inner bag. The measurement result is distorted only by the largely constant gas flow through the gas inlet connection 52.
  • the double-walled gas reservoir bag fits optimally into a modular system. If the outer bag is rigid, the outer bag can also compensate for negative pressure that arises when a ventilator also aids the patient in expiration.
  • the gas reservoir bag can also be advantageously integrated into a distributor housing or both articles can be packed together as disposable articles.
  • Fig. 2 shows a mask arrangement according to the prior art.
  • Fig. 1 shows a mask arrangement according to the invention. This differs from a mask arrangement shown in FIG. 2 essentially by the double-walled gas reservoir bag 6, which makes it possible to connect a ventilator 2 via a breathing tube 5.
  • the inner, flexible bag 9 serves only as a partition between the gas, usually oxygen, in its interior and the ambient air between the inner and outer bag 8.
  • the inner bag 9 is flexible so as to avoid any pressure difference between its interior and exterior to create.
  • the outer bag 8 serves to compensate for the overpressure generated by the respirator 2 during inspiration.
  • the outer bag 8 is filled tight at least during inspiration and should change its volume as little as possible under normal ventilation pressures.
  • a ventilation hose-like Y-piece 7 is provided.
  • Y-piece 7 is shaped at the top so as to fit on outlet port 62.
  • the lower part of Y-piece 7 is modeled outlet port 62, so that here a breathing tube 5 can be connected.
  • So can Distribution box 30 are equipped with a simple gas reservoir bag 40 or with a double-walled gas reservoir bag 6 as required.
  • Y-piece 7 serves to introduce ambient air supplied under positive pressure from the ventilator 2 partially into the space between inner bag 9 and outer bag 8 in order to compress the gas in inner bag 9 to this overpressure.
  • the remaining ambient air delivered by ventilator 2 is routed via channel 70, dilution valve 72, inspiratory arm 50, and inspiratory valve 54 to facepiece 20.
  • ventilator 2 two turbines 3 and 4 are shown to indicate that this ventilator can generate both positive and negative pressure to assist in inspiration or expiration by turbine 3 and 4, respectively. If the ventilator 2 generates a negative pressure, the outer bag 8 must be rigid, so that the term "housing” would be more appropriate instead of "bag”.
  • Antierstickungsventil 56 and dilution valve 72 are not redundant, since dilution valve 72 leads to respirator 2 and not directly to the ambient air. If respirator 2 generate a negative pressure by means of turbine 4, this is also transmitted via inner bag 9 into inspiratory arm 50. The opening pressure of anti-seize valve 56 must be greater in magnitude than this negative pressure, otherwise the gas supplied via gas inlet port 52 is diluted with ambient air.

Abstract

L'invention concerne un sac réservoir de gaz (6) qui comprend un sac flexible (9) servant à séparer deux gaz différents au moyen d'un raccord. Ce sac réservoir de gaz comprend par ailleurs un sac extérieur (8) destiné à générer une différence de pression entre le sac flexible (9) et l'environnement du sac extérieur (8), ledit sac extérieur (8) entourant le sac flexible (9) à l'exception de son raccord. L'invention concerne en outre un boîtier distributeur destiné à un masque respiratoire équipé d'un tel sac réservoir de gaz, ainsi qu'un masque respiratoire pourvu d'un tel boîtier distributeur. L'invention concerne enfin des procédés correspondants.
EP05774437A 2004-08-21 2005-08-09 Sac reservoir de gaz, boitier distributeur, masque respiratoire et procede de respiration Withdrawn EP1778328A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004040740A DE102004040740A1 (de) 2004-08-21 2004-08-21 Gasreservoirbeutel, Verteilergehäuse, Beatmungsmaske sowie Beatmungsverfahren
PCT/DE2005/001406 WO2006021182A1 (fr) 2004-08-21 2005-08-09 Sac reservoir de gaz, boitier distributeur, masque respiratoire et procede de respiration

Publications (1)

Publication Number Publication Date
EP1778328A1 true EP1778328A1 (fr) 2007-05-02

Family

ID=35058589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05774437A Withdrawn EP1778328A1 (fr) 2004-08-21 2005-08-09 Sac reservoir de gaz, boitier distributeur, masque respiratoire et procede de respiration

Country Status (4)

Country Link
US (1) US20070163592A1 (fr)
EP (1) EP1778328A1 (fr)
DE (2) DE102004040740A1 (fr)
WO (1) WO2006021182A1 (fr)

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US20100037896A1 (en) * 2008-08-18 2010-02-18 General Electric Company Automatic ventilator system and method
US8517017B2 (en) * 2009-01-08 2013-08-27 Hancock Medical, Inc. Self-contained, intermittent positive airway pressure systems and methods for treating sleep apnea, snoring, and other respiratory disorders
CN102361661B (zh) * 2009-03-23 2015-09-02 皇家飞利浦电子股份有限公司 气体混合控制装置和方法
WO2013050907A1 (fr) * 2011-10-05 2013-04-11 Koninklijke Philips Electronics N.V. Systèmes et procédés de thérapie respiratoire utilisant un circuit de mélange du gaz
EP2806931B1 (fr) 2012-01-23 2019-04-10 AEON Research and Technology, LLC Système de traitement pulmonaire modulaire
US9839758B2 (en) * 2012-06-01 2017-12-12 Gregory Heimel Water and air preconditioning apparatus
US10314989B2 (en) 2013-01-28 2019-06-11 Hancock Medical, Inc. Position control devices and methods for use with positive airway pressure systems
US20160256661A1 (en) * 2013-10-15 2016-09-08 Wallis Coombe Pty Ltd As Trustee For Sleuky Family Trust Improved oxygenating apparatus
EP3071274B1 (fr) 2013-11-20 2019-07-10 Transunit AB Ventilateur médical à turbine
US10881829B2 (en) 2014-08-18 2021-01-05 Resmed Inc. Portable pap device with humidification
USD776802S1 (en) 2015-03-06 2017-01-17 Hancock Medical, Inc. Positive airway pressure system console
CN109310348B (zh) 2016-05-19 2022-01-25 汉考克医药公司 姿势阻塞性睡眠呼吸暂停检测系统
US11338158B2 (en) * 2018-03-15 2022-05-24 Safran Aerotechnics Sas System and a method for delivering breathing gas to passengers on-board an aircraft
GB2595242A (en) * 2020-05-18 2021-11-24 Imperial College Innovations Ltd Method and apparatus
CN112370622B (zh) * 2020-10-08 2023-04-28 王洪奎 一种等量吸气仪
WO2022224020A1 (fr) * 2021-04-23 2022-10-27 Fundacion Abood Shaio En Reestructuracion Unité de pédale pour masque de voies aériennes

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Also Published As

Publication number Publication date
DE102004040740A1 (de) 2006-02-23
DE112005002715A5 (de) 2007-08-09
US20070163592A1 (en) 2007-07-19
WO2006021182A1 (fr) 2006-03-02

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