GB1379857A - Apparatus for use in determining respiratory airway resistance - Google Patents
Apparatus for use in determining respiratory airway resistanceInfo
- Publication number
- GB1379857A GB1379857A GB843672A GB843672A GB1379857A GB 1379857 A GB1379857 A GB 1379857A GB 843672 A GB843672 A GB 843672A GB 843672 A GB843672 A GB 843672A GB 1379857 A GB1379857 A GB 1379857A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- measuring
- bell
- airway
- 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.)
- Expired
Links
- 230000000241 respiratory effect Effects 0.000 title abstract 2
- 238000005259 measurement Methods 0.000 abstract 3
- 230000003434 inspiratory effect Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/091—Measuring volume of inspired or expired gases, e.g. to determine lung capacity
- A61B5/093—Measuring volume of inspired or expired gases, e.g. to determine lung capacity the gases being exhaled into, or inhaled from, an expansible chamber, e.g. bellows or expansible bag
- A61B5/0935—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
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/085—Measuring impedance of respiratory organs or lung elasticity
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pulmonology (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Physiology (AREA)
- Heart & Thoracic Surgery (AREA)
- Physics & Mathematics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
1379857 Measuring respiratory airway resistance W J SAYER 23 Feb 1972 [24 Feb 1971] 8436/72 Heading A5K Apparatus for use in measuring the nasal or tracheobronchial airway resistance of a person comprises means for measuring a patient's pharyngeal pressure, means for recording the flow of air in one direction through the patient's airway, and means responsive to the pressure-measuring means to operate the flow recorder only when the pharyngeal pressure is within a predetermined pressure range. The pressure is measured by a mouthpiece 46 connected to a pressure gauge 50 having a switch which closes when the pressure is within adjustable limits to energise a motor driving a drum 26 carrying a chart on which a pen 24 records the volume of an adjustable bell 8 of a spirometer 2, into or from which the patient supplies or receives air. The airway resistance R is calculated from the relation R=(P 0 -P D )/ CV/t), where P 0 is the atmospheric pressure, P p is the pharyngeal pressure, and (V/t) is the air-flow rate. In inspiratory nasal airway measurement, the patient breaths in air from the bell 8 through the nostrils and exhales through the mouth around the mouthpiece 46, and, in expiratory nasal airway measurement, he breathes in through the mouth and out through the nostrils into the bell 8. When measuring tracheobronchial airway resistance, the nostrils are blocked off and a modified mouthpiece (68), Fig. 7 (not shown), is used which is connected through a main opening to the bell 8 and through a side opening to the gauge/switch 50. Two such gauge/switches may be used, one for inspiration and one for expiration, so that the switching limits do not have to be adjusted when changing from inspiration to expiration measurements.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11828071A | 1971-02-24 | 1971-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1379857A true GB1379857A (en) | 1975-01-08 |
Family
ID=22377612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB843672A Expired GB1379857A (en) | 1971-02-24 | 1972-02-23 | Apparatus for use in determining respiratory airway resistance |
Country Status (7)
Country | Link |
---|---|
US (1) | US3742939A (en) |
JP (1) | JPS5638219B1 (en) |
CA (1) | CA949771A (en) |
DE (1) | DE2208524A1 (en) |
FR (1) | FR2127745A5 (en) |
GB (1) | GB1379857A (en) |
NL (1) | NL7202428A (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD246599S (en) * | 1975-07-28 | 1977-12-06 | Puritan-Bennett Corporation | Pulmonary diagnostic instrument unit |
JPS59107399A (en) * | 1982-12-13 | 1984-06-21 | リオン株式会社 | Measurement of nasalization level |
US6379316B1 (en) | 1999-08-31 | 2002-04-30 | Advanced Respiratory, Inc. | Method and apparatus for inducing sputum samples for diagnostic evaluation |
US6415791B1 (en) | 1999-10-04 | 2002-07-09 | American Biosystems, Inc. | Airway treatment apparatus with cough inducement |
US20050166928A1 (en) * | 2004-01-30 | 2005-08-04 | Yandong Jiang | Methods and devices for maintaining an open airway |
US8091554B2 (en) * | 2004-01-30 | 2012-01-10 | The General Hospital Corporation | Methods and devices for relieving upper airway obstructions |
US7621267B1 (en) * | 2004-08-30 | 2009-11-24 | Adams Phillip M | Scuba mask purging apparatus and method |
US7785280B2 (en) * | 2005-10-14 | 2010-08-31 | Hill-Rom Services, Inc. | Variable stroke air pulse generator |
US7422015B2 (en) * | 2005-11-22 | 2008-09-09 | The General Electric Company | Arrangement and method for detecting spontaneous respiratory effort of a patient |
US8460223B2 (en) | 2006-03-15 | 2013-06-11 | Hill-Rom Services Pte. Ltd. | High frequency chest wall oscillation system |
US9795752B2 (en) | 2012-12-03 | 2017-10-24 | Mhs Care-Innovation, Llc | Combination respiratory therapy device, system, and method |
US9792831B2 (en) * | 2015-08-04 | 2017-10-17 | Benjamin Grabber | Incentive spirometer and musical instrument |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3036569A (en) * | 1959-08-04 | 1962-05-29 | John A Clements | Lung-airway resistance meter |
CH474262A (en) * | 1966-05-10 | 1969-06-30 | S M E Societa Apparecchiature | Writing breath measuring device |
US3410264A (en) * | 1966-06-02 | 1968-11-12 | Frederik Willem Steven | Instrument for measuring total respiratory and nasal air resistance |
FR1508303A (en) * | 1966-11-23 | 1968-01-05 | Measuring device for studying pulmonary ventilatory mechanics | |
DE1915959B2 (en) * | 1969-03-28 | 1975-03-06 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Analyser for exhaled breath - has suction aspirator tube leading from breathing tube for sampling and opened during exhalation |
US3621833A (en) * | 1969-06-26 | 1971-11-23 | Robert Crane | Method and apparatus for automatically determining physiological parameters related to human breathing airway resistance and functional residual capacity |
-
1971
- 1971-02-24 US US00118280A patent/US3742939A/en not_active Expired - Lifetime
-
1972
- 1972-02-23 FR FR7206167A patent/FR2127745A5/fr not_active Expired
- 1972-02-23 DE DE19722208524 patent/DE2208524A1/en not_active Ceased
- 1972-02-23 GB GB843672A patent/GB1379857A/en not_active Expired
- 1972-02-23 CA CA135,368A patent/CA949771A/en not_active Expired
- 1972-02-24 JP JP1932672A patent/JPS5638219B1/ja active Pending
- 1972-02-24 NL NL7202428A patent/NL7202428A/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE2208524A1 (en) | 1972-09-28 |
CA949771A (en) | 1974-06-25 |
NL7202428A (en) | 1972-08-28 |
US3742939A (en) | 1973-07-03 |
JPS5638219B1 (en) | 1981-09-04 |
FR2127745A5 (en) | 1972-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |