WO2011054438A1 - Dispositifs de chauffage et d'humidification de gaz respiratoire - Google Patents

Dispositifs de chauffage et d'humidification de gaz respiratoire Download PDF

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Publication number
WO2011054438A1
WO2011054438A1 PCT/EP2010/006319 EP2010006319W WO2011054438A1 WO 2011054438 A1 WO2011054438 A1 WO 2011054438A1 EP 2010006319 W EP2010006319 W EP 2010006319W WO 2011054438 A1 WO2011054438 A1 WO 2011054438A1
Authority
WO
WIPO (PCT)
Prior art keywords
respiratory
moistening
water
heating
humidifying
Prior art date
Application number
PCT/EP2010/006319
Other languages
German (de)
English (en)
Inventor
Volker Lang
Original Assignee
Volker Lang
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 Volker Lang filed Critical Volker Lang
Publication of WO2011054438A1 publication Critical patent/WO2011054438A1/fr

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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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/16—Devices to humidify the respiration air
    • 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
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • 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
    • A61M16/1075—Preparation of respiratory gases or vapours by influencing the temperature
    • A61M16/109—Preparation of respiratory gases or vapours by influencing the temperature the humidifying liquid or the beneficial agent
    • 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
    • A61M16/14—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase
    • A61M16/147—Preparation of respiratory gases or vapours by mixing different fluids, one of them being in a liquid phase the respiratory gas not passing through the liquid container
    • 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
    • A61M16/0808—Condensation traps
    • 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
    • A61M2016/003—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter
    • A61M2016/0033—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3368—Temperature

Definitions

  • the invention relates to a device for heating and humidifying breathing gases according to the preamble of claim 1.
  • the dry and cold inhaled air reaches physiologically optimal temperature via the nasal mucous membranes and the nasopharynx and humidifies the trachea, the bronchi and finally for the gas exchange the alveoli.
  • a filtering and cleaning function of the bronchial mucous membrane allows the elimination of mucus and foreign bodies, which is only possible with an optimal conditioning of the inhaled air with heat and moisture.
  • FIGS. 1-7 The invention will be described below with reference to FIGS. 1-7 in two exemplary embodiments for multiple use, especially in the field of home care.
  • Fig. 1 shows the heart of the device according to FIG. 2, namely the heatable humidifier for the respiratory gases. It consists of a corrugated, thin metal heating strip 1 (preferably made of stainless steel), with an overlapping paper strip 2.
  • This heating tape 1 is connected with its beginning 4 on the winding body 5 with the central electrical, tubular contact 6.
  • the free end 7 of the heating tape 1 is connected to the electrical connector 36 (see Fig. 4 and Fig. 5).
  • Heating tape 1 and paper strips 2 rolled up form the winding 3 with its multiple air channels and thus large surfaces for the cold and dry, flowing air. Wrappings of a similar type but impregnated with hygroscopic chemicals are used, as is known, in HMEs (heat and moisture exchangers).
  • HMEs heat and moisture exchangers
  • Fig. 2 shows in perspective and transparent drawn the device for heating and humidifying respiratory gases separated in upper part 8 and lower part 9.
  • the upper part has a breathing gas outlet 10, to which the Atemgas- temperature sensor piece 11 is plugged, which is used to connect a patient with a Connecting piece 12 is provided and has a connecting cable for the electric-electronic control power supply device.
  • the curved surface 13 of the upper part 8 By the curved surface 13 of the upper part 8 can be seen in dashed lines the upper moistening An mayberm winding 14 and in the center of the formed as a pipe electrical contact 15.
  • the lower part 9 has the gas inlet pipe 17 and at its curved bottom 18 the water outlet pipe 19, and on its outside the electrical connector 20.
  • the arranged between the upper part 8 and lower part 9 flat-cylindrical central part 24 has at its top a tightly welded, fine-meshed network (sieve) 25 and a fine mesh (sieve) 26 on its underside.
  • These sieves (nets) 25 and 26 together with the cylinder wall of the central part 24 a chamber through which the inflowing Wasserberiostutzen 27 dampening water is evenly distributed to the upper roll 14 and the lower roll 21 with flowing breathing gas.
  • FIG. 3 shows in section of the sectional plane I I in FIG. 2 the respiratory gas heating
  • Her domed upper part 13 shows the gas outlet 10 with the plugged-on breathing gas temperature sensor piece with connecting cable 11th and Patient connection piece 12.
  • the winding 14 is electrically connected to the electrical contact tube 15 and the electrical contact switch 16.
  • the lower part 9 shows the gas inlet port 17 and the curved bottom 18 (with support rib for the winding) and the water outlet port 19.
  • the middle part 24 has in the upper part of a dense mesh (screen) 25 on a net (wire) 26 in the lower part. The nets are each shown dotted.
  • the nets 25 and 26 form with the cylindrical wall of the central piece 24 a closed humidification chamber, which is penetrated centrally by the electrical contact pin 23 and into which the water feed nozzle 27 opens.
  • This pin connects, as indicated by dashed lines, in the assembled state, electrically the upper and lower Anicarm-moistening-winding the Atemgas-An ⁇ rm-moistening device.
  • the dry, cold breathing gas flows through the inlet port 17 of the Anürm- moistening device on the lower part 9, through the numerous air channels of the heated Anürm-moistening roll 21, the distributor moistening chamber 24 pressed thereon with their welded nets (sieves) 25 and 26, in the pressed-up shell 8 with the heated Anürm-moistening winding 14 with its numerous air channels, over the domed lid 13 to the outlet 10 and the plugged temperature sensor piece 11 with the connection piece 12 and a short breathing gas connection hose with adapter (not drawn), well-tempered and moistened, via a tracheal tube, a tracheal cannula or breathing mask to the patient.
  • the temperature sensor piece 11 If the temperature sensor piece 11 is not attached to the socket 10, then prevents the electronic control power supply unit commissioning of the moistening Anürm device. Decisive for the outstanding function of this respiratory gas moistening-warming device but are their moistening warm-up wraps. Their heating elements have a very low heat storage capacity and thus thermal inertia. There- with the possibility of a very rapid electrical change in heat dissipation performance and in addition in a large control range, which means that z. B. when changing the breathing gas flow and the breathing gas temperature can be kept largely constant within narrow limits.
  • a thin metal strip as a direct, electrically heated heating element.
  • This element is integrated in the wetting-warming coil of the heating-moistening device (see Fig. 1).
  • the moistening elements applied to the corrugated metal heating tape also have a low heat storage capacity and thus thermal inertia, since their water absorption capacity is only small (a few milliliters).
  • These moistening elements are formed from strip paper in strip form and rolled up into a roll (see FIG , This results in a large surface area for the evaporation of water evaporation and intimate contact with the respiratory air, which flows through the multiple air channels formed in the winding.
  • An external simple metering pump preferably a peristaltic pump, controlled by the electronic control power supply device, ensures a metered supply of sterile water as a function of the preselected respiratory gas flow or respiratory minute volume.
  • the Anicarm-moistening wraps described in their function thus also allow quickly detected by the temperature measuring unit even small Atemgastemperatur selectedung using the electronic control and power supply device via the electrical power supply to the heating element to correct.
  • Fig. 4 shows the second embodiment of the respiratory gas Anürm-moistening device in perspective, transparent and partially schematically.
  • the housing of the device consists of two halves, a bottle-shaped cylindrical upper part 28 with curved cover 29, gas outlet port 30 with screwed-on sensor piece 31 with patient port 32, sensor port 33 and sensor connection cable 34 and the lower part of the inserted and welded bottom 35th , With the electrical connector 36, the breathing gas inlet nozzle 37 with breathing gas manifold 38 and the moistening water supply port 39.
  • Fig. 6 shows in perspective, the lower part, the bottom plate 35 with the electrical connector 36 (associated with the ports 52 and 53 for the heating meander cylinder), the breathing gas inlet port 37 and the Befeuchtungswasser- supply port 39th
  • Fig. 7 shows schematically and simplifies the simple realization of the described M S heating cylinder.
  • the two temperature-resistant plastic bands 42 and 43 of the thin, stainless steel stamped heating meander 40 is placed and firmly connected to the marked attachment points 54 with these bands (eg, with rivets, brackets).
  • the edges of the meanders 55 are bent or folded at right angles, especially in the interspaces 41 (marked as a double line), for mechanical stiffening.
  • the two plastic strips are bent with the heating meander fixed thereto in each case to a circle and their ends connected by welding.
  • the welded plastic tape 43 thereby represents the lower edge of the heating cylinder, on which also the electric current supply takes place via the beginning 56 and the end 57 of the heating meander sheet.
  • the welded band 42 forms the upper edge of the heating cylinder.
  • Fig. 4, Fig. 5 and Fig. 6 show the Atemgas-warming-moistening device both in perspective, viewed drawn as well as in section.
  • Cold breathing gas flows through the gas inlet port 37 to the gas distributor 38 with baffle plate and outlet openings and from there, both over the inner surface of the electrically heated heating meander cylinder jacket 40 which is covered with the tight-fitting inner blotter paper 47 (not shown), as well as on the Outer surface of the heating Meandering cylinder 40 through a gap 48 formed outwardly by the outer blotter paper 46 (the top 28 of the device is tight).
  • these paper cylinders are with their lower ends in germ-free moistening, which is supplied via the nozzle 39 from an external reservoir, the bottom 35 of Atemgas-warming Moistening device covered.
  • this Anicarm-moistening device can be operated just as horizontally or inclined by 45 degrees to both sides.
  • the side surfaces of the paper cylinders are dipped strip-shaped into the dampening water. This water rises in the flow papers up, moisturizes them completely and is then heated by the heat emitted by the thin-walled meander meander cylinder 40 inside and outside heat and evaporates or evaporated.
  • the over this large surface stroking breathing gas is optimally warmed and moistened and leaves the device via the gas outlet 30 with screwed-temperature sensor piece 31 with patient connector 32.
  • the measured breathing gas temperature controls the power supply via the electronic control power supply and monitoring device to the heating element of the respiratory gas warm-up moistening device.
  • An over-temperature control of the heating element is detected via an electronically registered decrease in the heating current with increasing temperature of the heating element and leads to exceeding the permissible limit of the switching off of the heating current and triggering of a warning signal.
  • the power supply takes place.

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Air Humidification (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

L'invention décrit, au moyen de deux exemples de réalisation, deux dispositifs simples, pouvant être fabriqués à coût réduit, fonctionnant avec des éléments de chauffage et d'humidification d'un type nouveau, pouvant être réglés à faible inertie et présentant une très grande efficacité électrique, lesdits dispositifs permettant de chauffer et d'humidifier des gaz respiratoires selon le principe des vaporisateurs/évaporateurs. Le premier exemple de réalisation est très petit, compact, de faible poids, fonctionne dans une large mesure indépendamment de sa position et est particulièrement destiné à une utilisation nomade. Le deuxième exemple de réalisation est en forme de bouteille, de poids léger, fonctionnant, dans une large mesure, indépendamment de sa position sans pompe externe ni réservoir d'eau d'humidification et est particulièrement idéal pour une utilisation dans le domaine des soins à domicile. Ces dispositifs de chauffage et d'humidification de gaz respiratoire sont contrôlés par un dispositif de surveillance, d'alimentation en courant et de commande électrique/électronique, selon l'état de la technique.
PCT/EP2010/006319 2009-11-04 2010-10-15 Dispositifs de chauffage et d'humidification de gaz respiratoire WO2011054438A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009052542.4 2009-11-04
DE102009052542A DE102009052542A1 (de) 2009-11-04 2009-11-04 Atemgas-Anwärm-Anfeucht-Vorrichtungen für die künstliche Beatmung und Atemhilfstherapien mit besonderer Eignung für den Bereich HOME CARE .

Publications (1)

Publication Number Publication Date
WO2011054438A1 true WO2011054438A1 (fr) 2011-05-12

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PCT/EP2010/006319 WO2011054438A1 (fr) 2009-11-04 2010-10-15 Dispositifs de chauffage et d'humidification de gaz respiratoire

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DE (1) DE102009052542A1 (fr)
WO (1) WO2011054438A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112089942A (zh) * 2020-09-10 2020-12-18 清远市沃尔森医用科技有限公司 一种基于5g的多功能智能无创防感染呼吸机
CN113271996A (zh) * 2018-10-15 2021-08-17 瑞思迈私人有限公司 用于医疗装置中的主动功率管理的系统和方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0413127A2 (fr) * 1989-07-24 1991-02-20 Volker Prof. Dr. Lang Dispositif d'échauffement et d'humidification de gaz, en particulier pour la respiration artificielle
DE4126028A1 (de) * 1990-11-02 1992-05-07 Lang Volker Vorrichtung zum anwaermen und anfeuchten von gasen, insbesondere von atemgasen bei kuenstlicher beatmung mit kleinem totraumvolumen und besonderer eignung fuer frueh-, neugeborene, saeuglinge und kinder
EP0567158A2 (fr) * 1992-04-24 1993-10-27 FISHER & PAYKEL LIMITED Appareil d'humidification et/ou chambres de distribution et/ou sonde de température
US5318731A (en) * 1992-07-29 1994-06-07 Mitsubishi Denki Kabushiki Kaisha Humidifier
DE4432907A1 (de) * 1993-09-17 1995-03-23 Gibeck Respiration Ab Wärme- und Feuchtigkeitsaustauscher
US5769071A (en) * 1995-02-16 1998-06-23 Smiths Industries Plc Humidifier systems
DE19808590A1 (de) * 1998-02-28 1999-09-09 Draeger Medizintech Gmbh Beatmungsanfeuchter
US6201223B1 (en) * 1996-08-23 2001-03-13 Respironics, Inc. Humidification control unit and method of manufacturing same
EP1338297A1 (fr) * 2002-02-20 2003-08-27 Fisher & Paykel Healthcare Limited Système de détection de surchauffe d'un conduit
WO2003099367A2 (fr) * 2002-05-29 2003-12-04 Jean-Michel Anthony Dispositif de conditionnement de gaz medical

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0413127A2 (fr) * 1989-07-24 1991-02-20 Volker Prof. Dr. Lang Dispositif d'échauffement et d'humidification de gaz, en particulier pour la respiration artificielle
DE4126028A1 (de) * 1990-11-02 1992-05-07 Lang Volker Vorrichtung zum anwaermen und anfeuchten von gasen, insbesondere von atemgasen bei kuenstlicher beatmung mit kleinem totraumvolumen und besonderer eignung fuer frueh-, neugeborene, saeuglinge und kinder
EP0567158A2 (fr) * 1992-04-24 1993-10-27 FISHER & PAYKEL LIMITED Appareil d'humidification et/ou chambres de distribution et/ou sonde de température
US5318731A (en) * 1992-07-29 1994-06-07 Mitsubishi Denki Kabushiki Kaisha Humidifier
DE4432907A1 (de) * 1993-09-17 1995-03-23 Gibeck Respiration Ab Wärme- und Feuchtigkeitsaustauscher
US5769071A (en) * 1995-02-16 1998-06-23 Smiths Industries Plc Humidifier systems
US6201223B1 (en) * 1996-08-23 2001-03-13 Respironics, Inc. Humidification control unit and method of manufacturing same
DE19808590A1 (de) * 1998-02-28 1999-09-09 Draeger Medizintech Gmbh Beatmungsanfeuchter
EP1338297A1 (fr) * 2002-02-20 2003-08-27 Fisher & Paykel Healthcare Limited Système de détection de surchauffe d'un conduit
WO2003099367A2 (fr) * 2002-05-29 2003-12-04 Jean-Michel Anthony Dispositif de conditionnement de gaz medical

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113271996A (zh) * 2018-10-15 2021-08-17 瑞思迈私人有限公司 用于医疗装置中的主动功率管理的系统和方法
CN112089942A (zh) * 2020-09-10 2020-12-18 清远市沃尔森医用科技有限公司 一种基于5g的多功能智能无创防感染呼吸机

Also Published As

Publication number Publication date
DE102009052542A1 (de) 2011-05-05

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