EP0840894A1 - Vorrichtung zur gewinnung von inhaltsstoffen der ausatemluft - Google Patents
Vorrichtung zur gewinnung von inhaltsstoffen der ausatemluftInfo
- Publication number
- EP0840894A1 EP0840894A1 EP96900851A EP96900851A EP0840894A1 EP 0840894 A1 EP0840894 A1 EP 0840894A1 EP 96900851 A EP96900851 A EP 96900851A EP 96900851 A EP96900851 A EP 96900851A EP 0840894 A1 EP0840894 A1 EP 0840894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- exhaled air
- peltier element
- lungs
- substances present
- exhaled
- 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- Withdrawn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
Classifications
-
- 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
Definitions
- the ingredients extracted from the exhaled air are used to diagnose human health, monitor therapy and monitor the progress of diseases of the lungs and respiratory tract.
- the device according to the invention for extracting substances from the exhaled air can be assigned to medical technology.
- WO 91/0555 A 1 discloses a method for diagnosing the state of health and for monitoring therapy and for monitoring the course of diseases, in particular the lungs and the respiratory tract, according to which non-volatile substances - if appropriate together with endogenous and exogenous volatile ones Substances - to be analyzed in the human exhaled air.
- the substances are previously enriched by condensation on cooled surfaces which are kept at a temperature below the freezing point of the substances sought.
- Liquid nitrogen is used for cooling.
- a method for collecting exhaled breath condensate is also known (Am. Rev. Repir. Dis. Vol. 148, 1993, 955-960).
- the person to be examined exhales through a mouthpiece through a pipe made of PVC.
- the tube is cooled with ice, so that a breathing condensate forms, which in an ice-cold bottle drips.
- the cooling temperature of the exhaled air is 0 ° C.
- DE G 94 21 065.0 describes a device for collecting exhaled breath condensate.
- a sample collecting tube is located in a cooling jacket tube working in the countercurrent principle.
- a cooling liquid flows through the cooling jacket tube, the freezing point of which is below ⁇ 25 ° C.
- At the end of the sample collecting tube there is a removable collecting vessel for holding possible residues of the breathing condensate.
- the invention is based on the problem of enabling, on the one hand, a simple apparatus and, on the other hand, a complete extraction of the contents of the exhaled air, the operating state having to be reached in the shortest possible time.
- the ingredients of the exhaled air are obtained by condensation on a cooled surface in that the condensation takes place on a non-adsorptive surface and preferably elastic and thin film.
- the film to be used should preferably have a thickness of ⁇ 10 ⁇ m.
- the film is fixed by means of vacuum on a surface of a Peltier element, preferably having a temperature of -30 to -100 ° C. It can be an advantage that Peltier element additionally has a plate with high cold conductivity.
- the film itself can preferably consist of polytetrafluoroethylene or polypropylene.
- non-adsorptive foils are of particular importance for objective measured values. It has been shown that glass surfaces or PVC lead to a considerable falsification of the analysis values.
- the main elements of the device according to the invention are the film 5 and the Peltier element 4.
- a cooling plate 10 and a further plate 13 with the connections for cooling water inlet 8 and cooling water outlet 9 as well as a hose connection 14 with seal 15 for vacuum 7 are arranged on the Peltier element 4.
- the Peltier element 4 is carried by a holding plate 11 which is located in the receptacle 12 with an opening 2 for the connection of an exhalation valve for the exhaled air freed from the ingredients.
- the receptacle 12 also serves as a holder for the interchangeable mouthpiece 12 through which the exhaled air is fed into the device. Best way to carry out the invention
- the exhaled air 1 of the person to be examined passes through the mouthpiece 12 to the film 5 cooled by a Peltier element 4, as a result of which the ingredients condense as breathing condensate 6.
- a temperature of from -30 to -100 ° C. is preferably set.
- the exhaled air is whirled through.
- a largely complete condensation of the ingredients on the cooled film 5 is thereby achieved, whereby quantitative analysis values are achieved.
- the breathing air freed from the ingredients is discharged through an opening 2 for the connection of an exhalation valve.
- the device according to the invention for obtaining the contents of the exhaled air by condensation also enables the detection of the existence of tumors, with certain metabolic products being exhaled via the lungs, and evidence of damage to the lungs and respiratory tract from environmental pollution (ozone, N0 ⁇ ) ur
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biomedical Technology (AREA)
- Food Science & Technology (AREA)
- Urology & Nephrology (AREA)
- Hematology (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analysing Biological Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995128158 DE19528158A1 (de) | 1995-07-24 | 1995-07-24 | Vorrichtung zur Gewinnung der Inhaltsstoffe der Ausatemluft |
| DE19528158 | 1995-07-24 | ||
| PCT/DE1996/000105 WO1997004310A1 (de) | 1995-07-24 | 1996-01-19 | Vorrichtung zur gewinnung von inhaltsstoffen der ausatemluft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0840894A1 true EP0840894A1 (de) | 1998-05-13 |
Family
ID=7768362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96900851A Withdrawn EP0840894A1 (de) | 1995-07-24 | 1996-01-19 | Vorrichtung zur gewinnung von inhaltsstoffen der ausatemluft |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0840894A1 (de) |
| AU (1) | AU4481496A (de) |
| DE (2) | DE19528158A1 (de) |
| WO (1) | WO1997004310A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19755471A1 (de) * | 1997-12-03 | 1999-06-17 | Ufz Leipzighalle Gmbh | Vorrichtung zur Untersuchung von Atemwegserkrankungen und diagnostische Mittel |
| AU2002361259A1 (en) * | 2002-09-02 | 2004-03-19 | Juan Carlos Colomer Garcia | Thermoelectric condenser for vapour exhaled during respiration |
| DE102005020102B3 (de) * | 2005-04-25 | 2006-11-30 | Universität Potsdam | Verfahren und Vorrichtung zur Gewinnung und Analyse von Atemkondensaten |
| DE102008030158A1 (de) * | 2008-06-27 | 2010-02-11 | Dina Levina | Vorrichtung zur Gewinnung von Atemluftkondensat |
| US12533047B2 (en) | 2020-04-19 | 2026-01-27 | John J. Daniels | Mask-based diagnostic system using exhaled breath condensate |
| US12442726B2 (en) | 2020-04-19 | 2025-10-14 | John J. Daniels | Mask-based testing system for detecting biomarkers in exhaled breath condensate, aerosols and gases |
| US12369816B2 (en) | 2020-04-19 | 2025-07-29 | John J. Daniels | Mask-based diagnostic system using exhaled breath condensate |
| US12031982B2 (en) | 2020-04-19 | 2024-07-09 | John J. Daniels | Using exhaled breath condensate for testing for a biomarker of COVID-19 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3932784C3 (de) * | 1989-09-30 | 2002-08-01 | Nmi Univ Tuebingen | Verfahren zur Gewinnung nichtflüchtiger Substanzen als analytisches Probenmaterial aus der menschlichen Atemluft |
-
1995
- 1995-07-24 DE DE1995128158 patent/DE19528158A1/de not_active Withdrawn
-
1996
- 1996-01-19 WO PCT/DE1996/000105 patent/WO1997004310A1/de not_active Ceased
- 1996-01-19 EP EP96900851A patent/EP0840894A1/de not_active Withdrawn
- 1996-01-19 DE DE19680593T patent/DE19680593D2/de not_active Expired - Fee Related
- 1996-01-19 AU AU44814/96A patent/AU4481496A/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9704310A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19528158A1 (de) | 1997-01-30 |
| WO1997004310A1 (de) | 1997-02-06 |
| DE19680593D2 (de) | 1998-06-18 |
| AU4481496A (en) | 1997-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19980123 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE |
|
| 19U | Interruption of proceedings before grant |
Effective date: 19990422 |
|
| 19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 19990811 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 20000215 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20001003 |