DE3020265C2 - Pneumotachograph - Google Patents
PneumotachographInfo
- Publication number
- DE3020265C2 DE3020265C2 DE19803020265 DE3020265A DE3020265C2 DE 3020265 C2 DE3020265 C2 DE 3020265C2 DE 19803020265 DE19803020265 DE 19803020265 DE 3020265 A DE3020265 A DE 3020265A DE 3020265 C2 DE3020265 C2 DE 3020265C2
- Authority
- DE
- Germany
- Prior art keywords
- flow path
- flow
- pneumotachograph
- deflector
- pitot
- 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
Links
- 239000007789 gas Substances 0.000 claims description 22
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 11
- 238000007142 ring opening reaction Methods 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000020030 perry Nutrition 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 238000009531 respiratory rate measurement Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
-
- 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
- A61B5/087—Measuring breath flow
- A61B5/0876—Measuring breath flow using means deflected by the fluid stream, e.g. flaps
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physiology (AREA)
- Molecular Biology (AREA)
- Pulmonology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US4326379A | 1979-05-29 | 1979-05-29 | |
| US15174280A | 1980-05-20 | 1980-05-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3020265A1 DE3020265A1 (de) | 1981-01-22 |
| DE3020265C2 true DE3020265C2 (de) | 1984-03-15 |
Family
ID=26720201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19803020265 Expired DE3020265C2 (de) | 1979-05-29 | 1980-05-28 | Pneumotachograph |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1139965A (Direct) |
| DE (1) | DE3020265C2 (Direct) |
| FR (1) | FR2457675A1 (Direct) |
| GB (1) | GB2052074B (Direct) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL72446A0 (en) * | 1984-07-19 | 1984-11-30 | Moshe Grinbaum | Spirometer |
| FR2624271B1 (fr) * | 1987-12-02 | 1990-03-30 | Aerospatiale | Dispositif detecteur de fuites pour circuit a circulation de fluide |
| FI84757C (fi) * | 1988-12-12 | 1992-01-10 | Instrumentarium Oy | Foer stroemningsmaetning avsett gasens stroemning begraensande och styrande organ. |
| US5038773A (en) * | 1990-06-08 | 1991-08-13 | Medical Graphics Corporation | Flow meter system |
| US5379650A (en) * | 1992-09-23 | 1995-01-10 | Korr Medical Technologies Inc. | Differential pressure sensor for respiratory monitoring |
| US5535633A (en) * | 1992-09-23 | 1996-07-16 | Korr Medical Technologies, Inc. | Differential pressure sensor for respiratory monitoring |
| US5443075A (en) * | 1993-03-01 | 1995-08-22 | Puritan-Bennett Corporation | Flow measuring apparatus |
| US7335164B2 (en) | 1996-07-15 | 2008-02-26 | Ntc Technology, Inc. | Multiple function airway adapter |
| US5789660A (en) | 1996-07-15 | 1998-08-04 | Novametrix Medical Systems, Inc. | Multiple function airway adapter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2233829A1 (de) * | 1972-07-10 | 1974-03-14 | Westfaelische Metall Industrie | Kraftstoffbehaelter, insbesondere kraftradtank |
| US4083245A (en) * | 1977-03-21 | 1978-04-11 | Research Development Corporation | Variable orifice gas flow sensing head |
| CA1069342A (en) * | 1976-07-29 | 1980-01-08 | Research Development Corporation | Variable orifice gas flow sensing head |
| DE2802830C3 (de) * | 1978-01-23 | 1982-02-11 | Müller, Gerhard, Prof. Dr.-Ing., 7080 Aalen | Fluidströmungsmesser |
| US4197857A (en) * | 1978-04-06 | 1980-04-15 | Research Development Corporation | System for measurement of oxygen uptake and respiratory quotient |
-
1980
- 1980-05-28 FR FR8011821A patent/FR2457675A1/fr active Granted
- 1980-05-28 DE DE19803020265 patent/DE3020265C2/de not_active Expired
- 1980-05-29 GB GB8017546A patent/GB2052074B/en not_active Expired
- 1980-05-29 CA CA000352971A patent/CA1139965A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB2052074B (en) | 1984-05-10 |
| CA1139965A (en) | 1983-01-25 |
| FR2457675A1 (fr) | 1980-12-26 |
| FR2457675B1 (Direct) | 1983-11-10 |
| GB2052074A (en) | 1981-01-21 |
| DE3020265A1 (de) | 1981-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: VON FUENER, A., DIPL.-CHEM. DR.RER.NAT. EBBINGHAUS |
|
| 8181 | Inventor (new situation) |
Free format text: OSBORN, JOHN JAY, TIBURON, CALIF., US |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |