DE10318383B3 - Breathing gas moisturizer for CPAP breathing apparatus has evaporator in side branch from inspiration line and has temperature and humidity sensors connected to control circuit - Google Patents
Breathing gas moisturizer for CPAP breathing apparatus has evaporator in side branch from inspiration line and has temperature and humidity sensors connected to control circuit Download PDFInfo
- Publication number
- DE10318383B3 DE10318383B3 DE2003118383 DE10318383A DE10318383B3 DE 10318383 B3 DE10318383 B3 DE 10318383B3 DE 2003118383 DE2003118383 DE 2003118383 DE 10318383 A DE10318383 A DE 10318383A DE 10318383 B3 DE10318383 B3 DE 10318383B3
- Authority
- DE
- Germany
- Prior art keywords
- sensor signal
- air
- temperature sensor
- inspiration
- control unit
- 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.)
- Expired - Fee Related
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
- A61M16/10—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
- 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
- A61M16/16—Devices to humidify the respiration air
- A61M16/161—Devices to humidify the respiration air with means for measuring the humidity
-
- 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
-
- 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
- A61M2016/0039—Accessories therefor, e.g. sensors, vibrators, negative pressure with a flowmeter electrical in the inspiratory circuit
-
- 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
Abstract
Description
Die vorliegende Erfindung betrifft einen Beatmungsanfeuchter für ein mit einem Gebläse betriebenes Beatmungsgerät, insbesondere ein sogenanntes CPAP-Beatmungsgerät (CPAP: Continuous Positive Airway Pressure). Derartige Geräte werden zur Behandlung der Schlaf-Apnoe verwendet, wobei das dem Patienten mit konstantem Druck zugeführte Atemgas zur Freihaltung der Atemwege dient.The present invention relates to a respirator for one with a blower operated ventilator, in particular a so-called CPAP ventilator (CPAP: Continuous Positive Airway Pressure). Such devices are used to treat sleep apnea Breathing gas supplied to patients with constant pressure to keep clear the airways.
Solche CPAP-Beatmungsgeräte werden häufig auch im Heimbereich von den Patienten selber eingesetzt. Ein Nachteil bei einfachen CPAP-Beatmungsgeräten besteht darin, dass das Gebläse nur die relativ trockene Umgebungsluft liefert. Bei Patienten, die einen hohen Volumenstrom (Flow) über den Rachen-Mundbereich haben, trocknen die Atemwege schnell aus. Deshalb werden oft einfache Beatmungsanfeuchter eingesetzt. Diese gewöhnlich ungeregelten Beatmungsanfeuchter liefern in der Regel entweder zu viel oder zu wenig Feuchtigkeit. Wird der zugeführten Atemluft zu viel Feuchtigkeit zugefügt, kondensiert ein Teil der Feuchtigkeit in dem Inspirationsschlauch zum Patienten. Wird der Atemluft hingegen zu wenig Feuchtigkeit zugefügt, trocknen die Atemwege aus. Beides führt zu unangenehmen Begleiterscheinungen beim Patienten. Deshalb bieten einige Beatmungsanfeuchter die Möglichkeit, die Feuchtigkeitsmenge, die der Atemluft zugefügt wird, einzustellen.Such CPAP ventilators are also common used in the home area by the patients themselves. A disadvantage with simple CPAP ventilators is that the blower only provides the relatively dry ambient air. In patients who a high volume flow the throat and mouth area, the airways dry out quickly. That is why simple humidifiers are often used. This usually unregulated respiratory humidifiers usually deliver either too much or too little moisture. If the breathed air gets too much moisture added, condensed some of the moisture in the inspiration tube to the patient. On the other hand, if too little moisture is added to the breathing air, dry the airways. Both lead to unpleasant side effects in the patient. That is why some offer Respiratory humidifier the possibility adjust the amount of moisture added to the air you breathe.
Mit der Änderung der Lufttemperatur oder der Luftfeuchtigkeit des Raumes ändern sich jedoch auch die Eigenschaften der durch das Gebläse angesaugten Umgebungsluft. Das hat zur Folge, dass der Patient doch zuviel oder zuwenig Feuchtigkeit in der Inspirationsluft erhält.With the change in air temperature or the humidity of the room also changes Characteristics of through the blower aspirated ambient air. As a result, the patient does receives too much or too little moisture in the inspiration air.
Aus US-Patent 6,349,722 ist ein Beatmungsanfeuchter bekannt, der mit zwei Temperatursensoren am Inspirationsschlauch arbeitet, einem nahe dem Beatmungsanfeuchter und einem nahe der Beatmungsmaske des Patienten. Der Beatmungsanfeuchter hat eine Inspirationsleitung zur Durchleitung von Luft aus dem Beatmungsgerät in einen Inspirationsschlauch zum Patienten, einen Verdampfer, der mit der Inspirationsleitung in Verbindung steht und der ein Wasserreservoir und eine steuerbare Heizung umfasst. Ferner ist eine Steuereinheit vorhanden, die die Heizleistung aufgrund der beiden Temperaturmesswerte im Inspirationsschlauch steuert. Ein zusätzlicher Temperatursensor an der Maske und das damit verbundene weitere Kabel zu dem Beatmungsanfeuchter ist jedoch für den Einsatz im Heimbereich zu kompliziert.From US patent 6,349,722 is a respiratory humidifier known, that with two temperature sensors on the inspiration hose works, one near the respiratory humidifier and one near the Respiratory mask of the patient. The respiratory humidifier has an inspiration line for directing air from the ventilator into an inspiration hose to the patient, an evaporator, which is connected to the inspiration line communicates and which is a water reservoir and a controllable Heating includes. There is also a control unit that Heating output based on the two temperature measurements in the inspiration hose controls. An additional one Temperature sensor on the mask and the associated additional cable to the respirator is for use in the home too complicated.
Aus
Aus
Es ist Aufgabe der vorliegenden Erfindung, einen Beatmungsanfeuchter zu schaffen, der einfach aufgebaut und handhabbar und damit für den Einsatz im Heimbereich geeignet ist und die Vorgabe eines gewünschten relativen Luftfeuchtigkeitswertes der Atemluft aus einem Beatmungsgerät erlaubt.It is an object of the present invention To create respiratory humidifiers that are easy to set up and manageable and therefore for is suitable for use in the home and the specification of a desired one Relative humidity value of the breathing air from a ventilator allowed.
Zur Lösung dieser Aufgabe dient der Beatmungsanfeuchter mit den Merkmalen des Patentanspruchs 1. Vorteilhafte Ausführungsformen der Erfindung sind in den Unteransprüchen aufgeführt.To solve this task, the Ventilation humidifier with the features of claim 1. Advantageous embodiments the invention are set out in the subclaims.
Die Erfindung beruht auf dem Konzept, nicht die Feuchtigkeit im Inspirationsschlauch selbst zu detektieren, sondern die Luftfeuchtigkeit der Umgebungsluft. Der Feuchtigkeitssensor steht daher nicht in direktem Kontakt mit dem Atemgas, sondern ist der Umgebungsluft ausgesetzt. Neben dem Feuchtigkeitssensor ist ein die Temperatur des umgebenden Raumes erfassender Temperatursensor vorhanden. Eine Steuereinheit des Beatmungsanfeuchters ist so vorbereitet, um aus der relativen Umgebungsluftfeuchtigkeit, der Temperatur, dem gewünschten relativen Luftfeuchtigkeitswert der Atemluft und eines eingestellten oder gemessenen Atemluftvolumenstromwertes nach einer vorgegebenen Beziehung die Heizleistung der steuerbaren Heizung so einzustellen, dass die zur Erreichung des gewünschten relativen Luftfeuchtigkeitswertes erforderliche Wassermenge pro Zeiteinheit verdampft wird.The invention is based on the concept of not detecting the moisture in the inspiration hose itself, but rather the air humidity in the ambient air. The moisture sensor is therefore not in direct contact with the breathing gas, but is exposed to the ambient air. In addition to the humidity sensor is a temperature of the surrounding Room temperature sensor available. A control unit of the respiratory humidifier is prepared to adjust the heating output of the controllable heater from the relative ambient humidity, the temperature, the desired relative humidity value of the breathing air and a set or measured breathing air volume flow value in such a way that the heating output required to achieve the desired relative humidity value Amount of water is evaporated per unit of time.
Insbesondere lässt sich aus der Temperatur der Luft der Sättigungsdruck bestimmen, bei dem die Feuchtigkeit im Raum kondensieren würde. Aus der relativen Luftfeuchtigkeit des Raumes und der Temperatur lässt sich bestimmen, wie viel Feuchtigkeit der Atemluft in der Inspirationsleitung maximal zugeführt werden darf, ohne dass es zu einer Kondensation im Inspirationsschlauch kommt. Mithilfe des Atemluft-Volumenstromwertes (Flow), der entweder aus dem eingestellten Volumenstromwert als bekannt angenommen oder durch einen Sensor erfasst wird, lässt sich daraus die Heizleistung ermitteln, die dem Wasserreservoir zugeführt werden muss, damit die gewünschte relative Luftfeuchtigkeit im Atemgas erreicht wird.In particular, the temperature of the Air the saturation pressure determine at which the moisture in the room would condense. Out the relative humidity of the room and the temperature determine how much moisture in the breathing air in the inspiration line fed maximum may be without condensation in the inspiration hose comes. Using the breathing air volume flow value (Flow), which is either from the set volume flow value as known or accepted a sensor is detected the heat output determined by the water reservoir supplied must be so that the desired relative air humidity in the breathing gas is reached.
Über eine einfache Einstellmöglichkeit über ein Eingabemittel kann der Patient die gewünschte relative Luftfeuchtigkeit einstellen und in einem Bereich zwischen unangefeuchteter bis hin zu maximal angefeuchteter Atemluft an der Sättigungsgrenze einstellen.about an easy setting option via a The patient can input the desired relative humidity adjust and in a range between unhumidified to set to the maximum humidified breathing air at the saturation limit.
Damit steht ein Beatmungsanfeuchter zur Verfügung, der sich automatisch den Schwankungen in der Umgebungsluftfeuchtigkeit und Umgebungslufttemperatur anpasst und unabhängig davon Atemluft mit einer voreingestellten gewünschten Luftfeuchtigkeit liefert, ohne dass der Beatmungsanfeuchter einen geschlossen Regelkreis aufweist.This means that there is a humidifier to disposal, which automatically changes the fluctuations in the ambient air humidity and ambient air temperature and regardless of this, breathing air with a preset desired Humidity delivers without the respiratory humidifier closed loop.
Der Beatmungsanfeuchter wird im Folgenden anhand eines Ausführungsbeispiels in der Zeichnung erläutert, wobeiThe respiratory humidifier is described below based on an embodiment explained in the drawing, in which
Das CPAP-Beatmungsgerät
Der Verdampfer
Über
einen Feuchtesensor
Optional kann die Temperatur der
Atemluft am Ausgang des Beatmungsanfeuchters
Die Überwachung von Veränderungen
der von dem zweiten Temperatursensor
Optional kann auch die Lufttemperatur
am Eingang des Beatmungsanfeuchters
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003118383 DE10318383B3 (en) | 2003-04-23 | 2003-04-23 | Breathing gas moisturizer for CPAP breathing apparatus has evaporator in side branch from inspiration line and has temperature and humidity sensors connected to control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003118383 DE10318383B3 (en) | 2003-04-23 | 2003-04-23 | Breathing gas moisturizer for CPAP breathing apparatus has evaporator in side branch from inspiration line and has temperature and humidity sensors connected to control circuit |
Publications (1)
Publication Number | Publication Date |
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DE10318383B3 true DE10318383B3 (en) | 2004-07-01 |
Family
ID=32404460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE2003118383 Expired - Fee Related DE10318383B3 (en) | 2003-04-23 | 2003-04-23 | Breathing gas moisturizer for CPAP breathing apparatus has evaporator in side branch from inspiration line and has temperature and humidity sensors connected to control circuit |
Country Status (1)
Country | Link |
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DE (1) | DE10318383B3 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006015416A1 (en) * | 2004-08-10 | 2006-02-16 | Resmed Limited | Method and apparatus for humidification of breathable gas with profiled delivery |
DE102006019402A1 (en) * | 2006-04-24 | 2007-10-25 | Seleon Gmbh | Method for controlling a TNI device and TNI device |
WO2009085995A1 (en) * | 2007-12-28 | 2009-07-09 | Nellcor Puritan Bennett Llc | Systems and methods for controlling a heated humidifier |
WO2011136665A1 (en) * | 2010-04-27 | 2011-11-03 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
CN106178220A (en) * | 2016-07-12 | 2016-12-07 | 湖南明康中锦医疗科技发展有限公司 | A kind of respirator condensation-proof control system and method |
AU2017204480B2 (en) * | 2010-04-27 | 2019-07-25 | Fisher & Paykel Healthcare Limited | Apparatus for Supplying Gases to a Patient |
DE102018214556A1 (en) * | 2018-08-28 | 2020-03-05 | Hamilton Medical Ag | Ventilator with improved humidification of the breathing gas |
Citations (3)
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DE19808590A1 (en) * | 1998-02-28 | 1999-09-09 | Draeger Medizintech Gmbh | Humidifier for inhalation air during artificial respiration |
EP1138341A2 (en) * | 2000-03-21 | 2001-10-04 | FISHER & PAYKEL LIMITED | Humidification apparatus |
US6349722B1 (en) * | 1997-06-17 | 2002-02-26 | Fisher & Paykel Limited | Respiratory humidification system |
-
2003
- 2003-04-23 DE DE2003118383 patent/DE10318383B3/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6349722B1 (en) * | 1997-06-17 | 2002-02-26 | Fisher & Paykel Limited | Respiratory humidification system |
DE19808590A1 (en) * | 1998-02-28 | 1999-09-09 | Draeger Medizintech Gmbh | Humidifier for inhalation air during artificial respiration |
EP1138341A2 (en) * | 2000-03-21 | 2001-10-04 | FISHER & PAYKEL LIMITED | Humidification apparatus |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10220178B2 (en) | 2004-08-10 | 2019-03-05 | Resmed Limited | Method and apparatus for humidification of breathable gas with profiled delivery |
US8015971B2 (en) | 2004-08-10 | 2011-09-13 | Resmed Limited | Method and apparatus for humidification of breathable gas with profiled delivery |
WO2006015416A1 (en) * | 2004-08-10 | 2006-02-16 | Resmed Limited | Method and apparatus for humidification of breathable gas with profiled delivery |
US11318273B2 (en) | 2004-08-10 | 2022-05-03 | ResMed Pty Ltd | Method and apparatus for humidification of breathable gas with profiled delivery |
US11077282B2 (en) | 2004-08-10 | 2021-08-03 | ResMed Pty Ltd | Method and apparatus for humidification of breathable gas with profiled delivery |
US8833367B2 (en) | 2004-08-10 | 2014-09-16 | Resmed Limited | Method and apparatus for humidification of breathable gas with profiled delivery |
DE102006019402A1 (en) * | 2006-04-24 | 2007-10-25 | Seleon Gmbh | Method for controlling a TNI device and TNI device |
EP2010261A2 (en) * | 2006-04-24 | 2009-01-07 | Seleon GmbH | Method for controlling a tni apparatus and corresponding tni apparatus |
WO2009085995A1 (en) * | 2007-12-28 | 2009-07-09 | Nellcor Puritan Bennett Llc | Systems and methods for controlling a heated humidifier |
WO2011136665A1 (en) * | 2010-04-27 | 2011-11-03 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
AU2017204480B2 (en) * | 2010-04-27 | 2019-07-25 | Fisher & Paykel Healthcare Limited | Apparatus for Supplying Gases to a Patient |
US11730913B2 (en) | 2010-04-27 | 2023-08-22 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
CN106390263A (en) * | 2010-04-27 | 2017-02-15 | 费雪派克医疗保健有限公司 | Apparatus for supplying gases to a patient |
US9572951B2 (en) | 2010-04-27 | 2017-02-21 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
GB2492715A (en) * | 2010-04-27 | 2013-01-09 | Fisher & Paykel Healthcare Ltd | Apparatus for supplying gases to a patient |
AU2011245771B2 (en) * | 2010-04-27 | 2015-05-07 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
GB2492715B (en) * | 2010-04-27 | 2016-05-04 | Fisher & Paykel Healthcare Ltd | Apparatus for supplying gases to a patient |
AU2019253779B2 (en) * | 2010-04-27 | 2021-11-04 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
US10744294B2 (en) | 2010-04-27 | 2020-08-18 | Fisher & Paykel Healthcare Limited | Apparatus for supplying gases to a patient |
CN103037928A (en) * | 2010-04-27 | 2013-04-10 | 费雪派克医疗保健有限公司 | Apparatus for supplying gases to a patient |
CN106178220B (en) * | 2016-07-12 | 2019-02-22 | 湖南明康中锦医疗科技发展有限公司 | A kind of ventilator condensation-proof control system and method |
CN106178220A (en) * | 2016-07-12 | 2016-12-07 | 湖南明康中锦医疗科技发展有限公司 | A kind of respirator condensation-proof control system and method |
DE102018214556A1 (en) * | 2018-08-28 | 2020-03-05 | Hamilton Medical Ag | Ventilator with improved humidification of the breathing gas |
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Legal Events
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8100 | Publication of patent without earlier publication of application | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: DRAEGER MEDICAL AG & CO. KG, 23558 LUEBECK, DE |
|
8339 | Ceased/non-payment of the annual fee |