DE4127599A1 - Patient's breathing monitor, esp. during sleep - includes breathing mask with inner chamber connected to carbon di:oxide@ analyser and controlled suction device - Google Patents
Patient's breathing monitor, esp. during sleep - includes breathing mask with inner chamber connected to carbon di:oxide@ analyser and controlled suction deviceInfo
- Publication number
- DE4127599A1 DE4127599A1 DE19914127599 DE4127599A DE4127599A1 DE 4127599 A1 DE4127599 A1 DE 4127599A1 DE 19914127599 DE19914127599 DE 19914127599 DE 4127599 A DE4127599 A DE 4127599A DE 4127599 A1 DE4127599 A1 DE 4127599A1
- Authority
- DE
- Germany
- Prior art keywords
- suction
- breathing
- breathing mask
- pressure
- patient
- 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- Withdrawn
Links
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 43
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title 1
- 229910052799 carbon Inorganic materials 0.000 title 1
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009530 blood pressure measurement Methods 0.000 abstract 1
- 239000003570 air Substances 0.000 description 6
- 101100269850 Caenorhabditis elegans mask-1 gene Proteins 0.000 description 5
- 239000012080 ambient air Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 206010038669 Respiratory arrest Diseases 0.000 description 1
- 208000008784 apnea Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000036387 respiratory rate Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
- A61B5/6802—Sensor mounted on worn items
- A61B5/6803—Head-worn items, e.g. helmets, masks, headphones or goggles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
- A61B5/083—Measuring rate of metabolism by using breath test, e.g. measuring rate of oxygen consumption
- A61B5/0836—Measuring rate of CO2 production
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Measuring devices for evaluating the respiratory organs
- A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4806—Sleep evaluation
- A61B5/4818—Sleep apnoea
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physiology (AREA)
- Pulmonology (AREA)
- Emergency Medicine (AREA)
- Obesity (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Überwachung der Atmung eines Patienten gemäß der Gattung des Anspruchs 1.The invention relates to a device for monitoring the breathing of a patient according to the preamble of the claim 1.
Zur Überwachung der Atemtätigkeit während des Schlafs ist es bekannt, im Bereich der Nasenöffnung mittels eines Thermoelements (Temperaturfühler) die Atmung zu überwachen. Dabei wird vorausgesetzt, daß der Atemstrom die am Temperaturfühler auftretende Temperatur bestimmt, was jedoch nur dann gewährleistet ist, wenn ein ausrei chend großer Teil des gesamten Atemstroms beim Ausatmen durch die Nase austritt. Da jedoch häufig während des Schlafs eine Atmung durch den Mund erfolgt, ist diese be kannte Überwachungsmethode mit Fehlmessungen behaftet. Tritt die Atemluft beim Ausatmen durch den Mund aus, so kann der an der Nasenöffnung angebrachte Temperaturfühler von der Atemluft nicht erwärmt werden, wie wenn überhaupt keine Atmung vorhanden wäre. Außerdem ist diese bekannte Anordnung nicht geeignet, eine Aussage darüber zu machen, ob eine ausreichende Sauerstoffaufnahme und der damit ver bundene CO2- Ausstoß vorhanden ist. Durch Bestimmung des CO2-Ausstoßes könnte außer der Atmungsüberwachung auch noch eine Aussage über eventuell vorhandene Fehlfunktionen bzw. Krankheiten gemacht werden.To monitor breathing during sleep, it is known to monitor breathing in the area of the nostril using a thermocouple (temperature sensor). It is assumed that the breath flow determines the temperature occurring at the temperature sensor, but this is only guaranteed if a sufficiently large part of the total breath flow exits through the nose when exhaling. However, since breathing occurs frequently through the mouth during sleep, this known monitoring method is subject to incorrect measurements. If the exhaled air exits through the mouth when exhaling, the temperature sensor attached to the nostril cannot be warmed by the exhaled air, as if there were no breathing at all. In addition, this known arrangement is not suitable for making a statement as to whether there is sufficient oxygen uptake and the associated CO 2 emissions. By determining the CO 2 emissions, apart from breathing monitoring, a statement could also be made about any malfunctions or diseases that may be present.
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Überwachung der Sauerstoffaufnahme und Atemfrequenz eines Patienten zu schaffen, insbesondere zur Feststellung eines während des Schlafs auftretenden Atemstillstandes (Apnoephase).The invention has for its object a device to monitor oxygen intake and respiratory rate to create a patient, especially to determine respiratory arrest that occurs during sleep (Apnea phase).
Die Lösung dieser Aufgabe wird durch die im Anspruch 1 an gegebenen Merkmale erhalten. Der Patient trägt während des Überwachungsvorganges eine Atemmaske, die Nase und Mund überdeckt, so daß unabhängig von Mund- oder Nasenatmung die ein- und ausgeatmete Luft durch den Innenraum der Atemmaske gelangt. Mittels eines an sich bekannten CO2- Analysators wird die CO2-Konzentration während der Expi rationsphase (Ausatmung) bestimmt. In zeitlichen Abständen wird mittels einer Saugeinrichtung Kondenswasser aus der Atemmaske abgesaugt, damit dort die Messung nicht behin dert wird. Vorzugsweise erfolgt diese Absaugung bei jeder Inspirationsphase, die dadurch festgestellt werden kann, daß der Innendruck in der Atemmaske mit dem Umgebungsluft druck verglichen wird, wobei ein niedrigerer Innendruck die Inspirationsphase anzeigt.The solution to this problem is obtained by the features given in claim 1. During the monitoring process, the patient wears a breathing mask that covers the nose and mouth, so that the inhaled and exhaled air passes through the interior of the breathing mask independently of mouth or nose breathing. Using a known CO 2 analyzer, the CO 2 concentration is determined during the expiration phase (exhalation). At intervals, condensate is sucked out of the breathing mask by means of a suction device so that the measurement is not hindered there. This suction is preferably carried out during each inspiration phase, which can be determined by comparing the internal pressure in the breathing mask with the ambient air pressure, a lower internal pressure indicating the inspiration phase.
Die Saugeinrichtung besteht vorzugsweise aus einem Um schaltventil und einer daran angeschlossenen Saugpumpe, die ständig in Betrieb ist. Das Umschaltventil kann die Saugpumpe mit dem Innenraum der Atemmaske verbinden oder die zur Atemmaske führende Saugleitung schließen. Bei ge schlossener Saugleitung läuft die Saugpumpe frei, d. h. es wird über das Umschaltventil die Umgebungsluft angesaugt. Das ständige Ein- und Ausschalten der Saugeinrichtung mit tels eines elektromagnetisch betätigten Umschaltventils läßt sich auf einfache Weise realisieren und es wird ein ständiges Ein- und Ausschalten der Saugpumpe vermieden.The suction device preferably consists of one order switching valve and a suction pump connected to it, that is always in operation. The switching valve can Connect the suction pump to the interior of the breathing mask or close the suction line leading to the breathing mask. At ge closed suction line, the suction pump runs free, d. H. it the ambient air is sucked in via the changeover valve. The constant switching on and off of the suction device with means of an electromagnetically operated changeover valve can be realized in a simple way and it becomes a Constant switching on and off of the suction pump avoided.
Die beiden Saugleitungen, die von der Atemmaskte zum CO2-Analysator und zur Saugeinrichtung führen, sind im In nenraum der Atemmaske über einen Hohlkörper verbunden, der als ein Kunststoffrohr ausgebildet sein kann. Die Wandung des Hohlkörpers besitzt eine Perforation, durch die die Atemluft während der Expirationsphase zum CO2-Analysator gelangen kann. Ein sich im Hohlkörper ansammelndes Kondenswasser wird über die Saugeinrichtung während der Inspirationsphase abgesaugt. Dabei kann auch die ver brauchte Atemluft aus dem Hohlkörper abgesaugt werden. Auf diese Weise erhält man vor jedem Atemvorgang gleichblei bende Ausgangsverhältnisse für die Messung.The two suction lines, which lead from the breathing mask to the CO 2 analyzer and to the suction device, are connected in the interior of the breathing mask via a hollow body, which can be designed as a plastic tube. The wall of the hollow body has a perforation through which the breathing air can reach the CO 2 analyzer during the expiration phase. A condensate that collects in the hollow body is drawn off via the suction device during the inspiration phase. The ver breathed air can also be sucked out of the hollow body. In this way you get constant starting conditions for the measurement before each breathing process.
Die Atemmaske ist vorzugsweise im unteren Wandungsbereich mit Öffnungen versehen, die außen mit einem Verdunstungs vlies überzogen sind. Durch diese Maßnahme kann das sich an der Innenwand der Atemmaske niederschlagende Kondens wasser durch diese Öffnungen nach außen austreten und verdunsten.The breathing mask is preferably in the lower wall area with openings, the outside with an evaporation are covered with fleece. This measure can condensation condensing on the inner wall of the breathing mask leak water through these openings and evaporate.
Die Erfindung wird anhand eines in der Zeichnung darge stellten Ausführungsbeispiels näher erläutert.The invention is based on a Darge in the drawing presented embodiment explained in more detail.
Die Zeichnung zeigt den prinzipiellen Aufbau einer erfin dungsgemäßen Einrichtung zur Überwachung der Sauerstof faufnahme eines Patienten.The drawing shows the basic structure of an invent device according to the invention for monitoring the oxygen patient admission.
Eine Atemmaske 1 überdeckt Mund und Nase eines Patienten 2, wobei ein umlaufender Gummi-Dichtungsring 3 eine gute Abdichtung gewährleistet. Der Grundkörper 4 der Atemmaske 1 ist ein Kunststoff-Formteil mit einer Atmungsöffnung 5, die von einem Sieb 6 überdeckt ist. In der Atemmaske 1 er streckt sich ein Hohlkörper 7 mit in seiner Wandung ange brachter Perforation 8 und mit einer Auffangkammer 9 für Kondenswasser in seinem unteren Bereich. Der Hohlkörper 7 ist über eine erste Saugleitung 10 an einen CO2-Analysator 11 angeschlossen. Eine Pumpe P1 saugt über die Saugleitung 10 und über die Perforation 8 die Atemluft aus dem Innen raum 12 der Atemmaske 1.A breathing mask 1 covers the mouth and nose of a patient 2 , a circumferential rubber sealing ring 3 ensuring a good seal. The base body 4 of the breathing mask 1 is a plastic molded part with a breathing opening 5 , which is covered by a sieve 6 . In the breathing mask 1 he stretches a hollow body 7 with perforations 8 placed in its wall and with a collecting chamber 9 for condensed water in its lower region. The hollow body 7 is connected to a CO 2 analyzer 11 via a first suction line 10 . A pump P 1 sucks the breathing air from the inner space 12 of the breathing mask 1 via the suction line 10 and the perforation 8 .
Eine zweite Saugpumpe P2 ist Teil einer Saugeinrichtung 13, zu der auch noch ein Umschaltventil 14 gehört. Die zweite Saugpumpe P2 saugt in der dargestellten Stellung des Umschaltventils 14 über eine zweite Saugleitung 15 das in der Auffangkammer 9 anfallende Kondenswasser 16 ab. Dieser Absaugvorgang findet nur während der Inspirations phase statt, d. h. solange der Patient einatmet.A second suction pump P 2 is part of a suction device 13 , which also includes a changeover valve 14 . The second suction pump P 2 sucks in the position of the switching valve 14 shown via a second suction line 15 from the condensate 16 accumulating in the collecting chamber 9 . This suction process only takes place during the inspiration phase, ie as long as the patient is breathing.
Die Inspirationsphase wird mittels einer Druckmeßeinrich tung 17 festgestellt. Diese mißt über eine Meßleitung 18, die zu einer Öffnung 19 in der Wandung 4 führt, den Innen druck im Innenraum 12 der Atemmaske 1. Über einen Meßstut zen 20 wird der Druckmeßeinrichtung der Umgebungsdruck zugeführt, so daß diese den Differenzdruck zwischen Innen druck und Umgebungsdruck an eine Steuerung S mitteilen kann. Ist der Innendruck kleiner als der Umgebungsdruck so bedeutet dies, daß der Patient gerade einatmet (Inspirationsphase) und daß das Umschaltventil 14 die dar gestellte Stellung einnehmen muß. Sobald der Innendruck sich wieder erhöht kann darauf geschlossen werden, daß die Inspirationsphase abläuft. Die Steuerung S schließt dann die zweite Saugleitung 15, in dem im Umschaltventil 14 das Umlenkrohr 21 mit seinem Anschluß 22 in die Position des Verbindungsrohrs 23 gebracht wird.The inspiration phase is determined by means of a pressure measuring device 17 . This measures via a measuring line 18 , which leads to an opening 19 in the wall 4 , the internal pressure in the interior 12 of the breathing mask. 1 About a Meßstut zen 20 of the pressure measuring device, the ambient pressure is supplied so that it can communicate the differential pressure between internal pressure and ambient pressure to a controller S. If the internal pressure is lower than the ambient pressure, this means that the patient is breathing in (inspiration phase) and that the changeover valve 14 must assume the position shown. As soon as the internal pressure rises again, it can be concluded that the inspiration phase is running. The control S then closes the second suction line 15 , in which the deflection tube 21 is brought with its connection 22 into the position of the connecting tube 23 in the changeover valve 14 .
Der Hohlkörper 7 kann als geschwungenes Rohr mit angeform ter Auffangkammer 9 ausgebildet sein, wie dies in der Zeichnung dargestellt ist. Der Hohlkörper 7 kann jedoch auch aus mehreren nebeneinander angeordneten Rohren oder einem flachen Hohlkörper bestehen.The hollow body 7 can be designed as a curved tube with molded collecting chamber 9 , as shown in the drawing. However, the hollow body 7 can also consist of several tubes arranged side by side or a flat hollow body.
An der Unterseite der Atemmaske 1 besitzt deren Wandung Öffnungen 24, die von einem Verdunstungsvlies 25 überdeckt sind. Durch die Öffnungen 24 kann Kondenswasser, welches sich im Innenraum 12 ansammelt, nach außen in das Verdun stungsvlies 25 gelangen und an die Umgebungsluft abgegeben werden.At the bottom of the breathing mask 1 , the wall thereof has openings 24 which are covered by an evaporation fleece 25 . Through the openings 24 , condensation, which accumulates in the interior 12, can reach the outside in the evaporation fleece 25 and be released into the ambient air.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914127599 DE4127599A1 (en) | 1991-08-21 | 1991-08-21 | Patient's breathing monitor, esp. during sleep - includes breathing mask with inner chamber connected to carbon di:oxide@ analyser and controlled suction device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19914127599 DE4127599A1 (en) | 1991-08-21 | 1991-08-21 | Patient's breathing monitor, esp. during sleep - includes breathing mask with inner chamber connected to carbon di:oxide@ analyser and controlled suction device |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4127599A1 true DE4127599A1 (en) | 1993-02-25 |
Family
ID=6438720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19914127599 Withdrawn DE4127599A1 (en) | 1991-08-21 | 1991-08-21 | Patient's breathing monitor, esp. during sleep - includes breathing mask with inner chamber connected to carbon di:oxide@ analyser and controlled suction device |
Country Status (1)
Country | Link |
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DE (1) | DE4127599A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474060A (en) * | 1993-08-23 | 1995-12-12 | Evans; David | Face mask with gas sampling port |
GB2379612A (en) * | 2001-06-25 | 2003-03-19 | Desmond Bryan Mills | Face mask with respiratory gas tester |
WO2004010870A1 (en) * | 2002-07-25 | 2004-02-05 | Draeger Medical, Inc. | Breath detection system |
JP2008545452A (en) * | 2005-05-10 | 2008-12-18 | エヌスパイアー ヘルス,インコーポレイテッド | Method and apparatus for analyzing lung performance |
WO2010093317A1 (en) * | 2009-02-10 | 2010-08-19 | Hök Instrument Ab | Breath analysis |
DE102014111528B3 (en) * | 2014-08-13 | 2015-07-09 | Carefusion Germany 234 Gmbh | Breath measurement device |
EP2913003A1 (en) * | 2014-02-28 | 2015-09-02 | pro4senses GmbH | Device for taking a sample of human respiration comprising a flared and/or tubular housing element |
CN108338807A (en) * | 2018-04-09 | 2018-07-31 | 南阳市中心医院 | A kind of wireless remote control is held one's breath mask |
US10151744B2 (en) | 2012-08-24 | 2018-12-11 | Automotive Coalition For Traffic Safety, Inc. | Highly accurate breath test system |
US11026597B2 (en) | 2017-06-01 | 2021-06-08 | Koko It, Llc | Apparatus and methods for calibrating and/or validating pulmonary function test equipment |
US11104227B2 (en) | 2016-03-24 | 2021-08-31 | Automotive Coalition For Traffic Safety, Inc. | Sensor system for passive in-vehicle breath alcohol estimation |
US11391724B2 (en) | 2012-08-24 | 2022-07-19 | Automotive Coalition For Traffic Safety, Inc. | Breath test system |
-
1991
- 1991-08-21 DE DE19914127599 patent/DE4127599A1/en not_active Withdrawn
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474060A (en) * | 1993-08-23 | 1995-12-12 | Evans; David | Face mask with gas sampling port |
GB2379612A (en) * | 2001-06-25 | 2003-03-19 | Desmond Bryan Mills | Face mask with respiratory gas tester |
WO2004010870A1 (en) * | 2002-07-25 | 2004-02-05 | Draeger Medical, Inc. | Breath detection system |
US6863068B2 (en) | 2002-07-25 | 2005-03-08 | Draeger Medical, Inc. | Ventilation sound detection system |
JP2008545452A (en) * | 2005-05-10 | 2008-12-18 | エヌスパイアー ヘルス,インコーポレイテッド | Method and apparatus for analyzing lung performance |
US11213221B2 (en) | 2005-05-10 | 2022-01-04 | Koko It, Llc | Method and apparatus for analyzing pulmonary performance |
WO2010093317A1 (en) * | 2009-02-10 | 2010-08-19 | Hök Instrument Ab | Breath analysis |
KR20110118816A (en) * | 2009-02-10 | 2011-11-01 | 혹 인스트루먼트 에이비 | Breath analysis |
US11143646B2 (en) | 2012-08-24 | 2021-10-12 | Automotive Coalition For Traffic Safety, Inc. | Highly accurate breath test system |
US11391724B2 (en) | 2012-08-24 | 2022-07-19 | Automotive Coalition For Traffic Safety, Inc. | Breath test system |
US10151744B2 (en) | 2012-08-24 | 2018-12-11 | Automotive Coalition For Traffic Safety, Inc. | Highly accurate breath test system |
EP2913003A1 (en) * | 2014-02-28 | 2015-09-02 | pro4senses GmbH | Device for taking a sample of human respiration comprising a flared and/or tubular housing element |
DE102014111528B3 (en) * | 2014-08-13 | 2015-07-09 | Carefusion Germany 234 Gmbh | Breath measurement device |
US11104227B2 (en) | 2016-03-24 | 2021-08-31 | Automotive Coalition For Traffic Safety, Inc. | Sensor system for passive in-vehicle breath alcohol estimation |
US11964558B2 (en) | 2016-03-24 | 2024-04-23 | Automotive Coalition For Traffic Safety, Inc. | Sensor system for passive in-vehicle breath alcohol estimation |
US11026597B2 (en) | 2017-06-01 | 2021-06-08 | Koko It, Llc | Apparatus and methods for calibrating and/or validating pulmonary function test equipment |
CN108338807B (en) * | 2018-04-09 | 2020-09-11 | 南阳市中心医院 | Wireless remote control air-tight mask |
CN108338807A (en) * | 2018-04-09 | 2018-07-31 | 南阳市中心医院 | A kind of wireless remote control is held one's breath mask |
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