EP3570744A1 - Vorrichtung zur messung von markern aus der atem- oder umgebungsluft - Google Patents
Vorrichtung zur messung von markern aus der atem- oder umgebungsluftInfo
- Publication number
- EP3570744A1 EP3570744A1 EP18706375.5A EP18706375A EP3570744A1 EP 3570744 A1 EP3570744 A1 EP 3570744A1 EP 18706375 A EP18706375 A EP 18706375A EP 3570744 A1 EP3570744 A1 EP 3570744A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- air
- pressure
- measuring
- feed line
- 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.)
- Ceased
Links
Classifications
-
- 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
- A61B5/486—Biofeedback
-
- 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
- A61B5/082—Evaluation by breath analysis, e.g. determination of the chemical composition of exhaled breath
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/483—Physical analysis of biological material
- G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
-
- 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
- A61B5/0803—Recording apparatus specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient; User input means
- A61B5/742—Details of notification to user or communication with user or patient; User input means using visual displays
Definitions
- the invention relates to a device for measuring markers from the breathing air (or ambient air). Areas of application are primarily medicine, but also environmental protection.
- the object of the invention is to enable standardized sampling for miniaturized sensors by means of simple principles and extensive use of disposable material, which can measure volatile or / and gaseous markers in the ambient air or in the exhaled air of humans and animals or can supply them to a further measuring system ,
- markers are present in concentrations of a few ppm or ppt and can therefore not be determined using traditional gas analysis and classical spirometric methods.
- the exhaled air has a different composition in so far as it was involved in the gas exchange in the alveoli or stayed only in the upper respiratory tract, the trachea or the bronchial tubes, there not at the respiration (02 intake, C02 Dispensing), but can still pick up volatile markers from these areas.
- Complex systems exploit this knowledge by measuring the expiratory oxygen or CO 2 content of the exhaled air and using it to determine the source of the desired exhalation sample. In simple inexpensive devices, the use of additional sensors only for the standardization of the samples for reasons of price, susceptibility or maintenance costs prohibits.
- the invention is realized with a device according to claim 1, the subclaims are preferred variants.
- the device according to the invention is shown schematically in Fig.
- FIG. 1 a schematic diagram of which shows Fig. 2. It consists of a mouthpiece adapter (1) with kann diarydem replaceable mouthpiece (2).
- the mouthpiece adapter (1) there are 3 openings with a diameter of up to 3 mm, which serve to accommodate 3 supply lines.
- the supply line 3 is used to determine the amount of breath by means of an adjustable opening, the supply line (4) is connected to a pressure gauge for measuring pressure and the supply line (5) leads to the sensor (6), where the actual measurement takes place. If necessary, a pump (7) is connected to this supply line; in addition, an inhalation valve (8) is integrated.
- FIG. 1 The schematic diagram is shown in FIG. 1
- Figure 2 illustrates an illustrative form of the claim structure.
- the actual sampling area consists only of the sleeve, which serves as a receptacle (plugging) for the usual filter mouthpieces.
- the system of sampling consists only of a "baffle plate" at the bottom of the sleeve (which need not be shaped as a plate).
- the functional principle includes the following processes: After being turned on, the sensor is purged with fresh air drawn from the environment via an intermediate filter for absorption of airborne chemicals, volatile organic compounds, etc., until a stable zero reading of the sensor is achieved. This can be done instead of air with a liquid present in the device or a gas mixture. Ideally, this procedure is not necessary.
- the air duct is sucked from the outside via the filter to the sensor, the pump is located behind the sensor and releases the air back into the environment. This procedure normally corresponds to the measurement of ambient air itself when the filter is removed.
- the subject For a breathing air measurement, the subject, after also having inhaled through a filter, blows a deep breath slowly and evenly into the device.
- the air resistance in the device allows only a minimal air flow, which is predetermined with a stenosis in the device.
- the desired pressure in the airways is measured by the pressure sensor and displayed to the patient.
- the test person For this purpose, the test person must, with his exhalation or the pressure thus achieved, hold a signal visible on a screen (curve or representation of his pressure signal generated) between two given position signs or within a marked range.
- this phase is a completion of a measurement, but can at the same time as the beginning of the next measurement
- the sensor is connected to a specific measuring electronics designed for this sensor type, which on the one hand maintains the sensor function (operating voltage or current) to the other basic functions controlled (aging processes, which can be represented in changed power consumption, extended response time, etc.). at If the end parameters previously defined by the manufacturer are reached, the sensor is switched off or the user is requested to replace the system.
- the device is controlled via USB or Wi-Fi with a PC / Smartphone / Tablet or similar.
- the power supply can also be done via USB, but also via a built-in battery.
- Data storage preferably takes place via an internal memory on the connected external PC or the like, or by transmission of the data with a "telemedicine module" according to the principles of this system.
- the particular advantage of the system is that a subject / patient / user should receive systems with which he can control certain disease parameters virtually continuously or at least several times a day.
- the system can z. B. be equipped in the first application with a NO (nitric oxide) sensor.
- NO nitric oxide
- sensors for hydrogen peroxide or free radicals, acetone, methane, ethene, ethane, or the like are conceivable, which are released in various disturbed metabolic processes (diabetes, hepatic insufficiency, intestinal inflammation) and appear because of their volatility in the exhaled air.
- the device can also be used with interchangeable sensors or mouthpieces for home visit service, ambulance service, etc.
- a cooperation of the subject / patient is not or only partially necessary as an important criterion for the devices! (For example, the device should not and can not be used as a "spirometer" to distinguish it from a number of other applications.)
- a variant of the device according to the invention is to generate the air flow without the use of a pump only by breathing the subject.
- the air supply to the sensor is regulated by a stenosis.
- Figure 1 Principle of sampling when exhaling a subject
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Chemical & Material Sciences (AREA)
- Pulmonology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Immunology (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017000500.1A DE102017000500A1 (de) | 2017-01-20 | 2017-01-20 | Vorrichtung zur Messung von Markern aus der Atemluft oder der Umgebungsluft |
| PCT/DE2018/000010 WO2018133895A1 (de) | 2017-01-20 | 2018-01-16 | Vorrichtung zur messung von markern aus der atem- oder umgebungsluft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3570744A1 true EP3570744A1 (de) | 2019-11-27 |
Family
ID=61256533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18706375.5A Ceased EP3570744A1 (de) | 2017-01-20 | 2018-01-16 | Vorrichtung zur messung von markern aus der atem- oder umgebungsluft |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3570744A1 (de) |
| DE (1) | DE102017000500A1 (de) |
| WO (1) | WO2018133895A1 (de) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007136523A2 (en) * | 2006-05-18 | 2007-11-29 | Nanomix, Inc. | Nanoelectronic breath analyzer and asthma monitor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0892926B2 (de) * | 1996-04-09 | 2006-12-06 | Aperon Biosystems, Inc. | Verfahren und vorrichtung zur messung von bestandteilen in von menschen ausgeatmeter luft |
| DE102008001121A1 (de) | 2008-04-10 | 2009-10-15 | Robert Bosch Gmbh | Verfahren zur Diagnose einer im Abgassystem einer Brennkraftmaschine angeordneten Abgassonde und Vorrichtung zur Durchführung des Verfahrens |
| DE202008007748U1 (de) | 2008-06-05 | 2008-09-18 | Filt Lungen- Und Thoraxdiagnostik Gmbh | Vorrichtung zur Konditionierung von Gasen |
| US8206311B2 (en) | 2009-04-01 | 2012-06-26 | Aerocrine Ab | Analyzer for nitric oxide in exhaled breath with multiple-use sensor |
| US9417232B2 (en) | 2009-10-02 | 2016-08-16 | Bi Mobile Breath, Inc. | Sobriety monitoring system |
| WO2013026902A1 (en) * | 2011-08-23 | 2013-02-28 | Aerocrine Ab | Devices and methods for generating an artificial exhalation profile |
| SE536782C2 (sv) | 2012-08-24 | 2014-08-05 | Automotive Coalition For Traffic Safety Inc | System för utandningsprov med hög noggrannhet |
| US20160150995A1 (en) * | 2014-11-28 | 2016-06-02 | Breathometer, Inc. | Portable device for personal breath quality and dehydration monitoring |
-
2017
- 2017-01-20 DE DE102017000500.1A patent/DE102017000500A1/de not_active Withdrawn
-
2018
- 2018-01-16 EP EP18706375.5A patent/EP3570744A1/de not_active Ceased
- 2018-01-16 WO PCT/DE2018/000010 patent/WO2018133895A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007136523A2 (en) * | 2006-05-18 | 2007-11-29 | Nanomix, Inc. | Nanoelectronic breath analyzer and asthma monitor |
Non-Patent Citations (2)
| Title |
|---|
| See also references of WO2018133895A1 * |
| VINCENT T A ET AL: "A low cost MEMS based NDIR system for the monitoring of carbon dioxide in breath analysis at ppm levels", SENSORS AND ACTUATORS B: CHEMICAL, ELSEVIER BV, NL, vol. 236, 6 April 2016 (2016-04-06), pages 954 - 964, XP029700020, ISSN: 0925-4005, DOI: 10.1016/J.SNB.2016.04.016 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102017000500A1 (de) | 2018-07-26 |
| WO2018133895A1 (de) | 2018-07-26 |
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