GB1338501A - Direct indicating device for measuring respiratory resistance - Google Patents

Direct indicating device for measuring respiratory resistance

Info

Publication number
GB1338501A
GB1338501A GB2595871A GB2595871A GB1338501A GB 1338501 A GB1338501 A GB 1338501A GB 2595871 A GB2595871 A GB 2595871A GB 2595871 A GB2595871 A GB 2595871A GB 1338501 A GB1338501 A GB 1338501A
Authority
GB
United Kingdom
Prior art keywords
resistance
flow resistance
pressure drop
switch
respiratory
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
Application number
GB2595871A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1338501A publication Critical patent/GB1338501A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—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

1338501 Respiratory resistance measurements E JAEGER 19 April 1971 [3 April 1970] 25958/71 Heading A5R A direct indicating device for measuring respiratory resistance comprises a flow resistance 10 through which respiratory air passes and which can be switched on by a control device 25 between two resistance values, a pressure-sensing device 12 providing an electrical output signal corresponding to the pressure drop across the flow resistance, the output of the sensing device being connected to a switch 16 via an amplifier 14, the switch being connected to two signal storage units 18a, b, the control device 26 and switch 16 being controlled synchronously by a timing device 28, the outputs of signal storage circuits 18a, b being connected with a dividing circuit 20, whose output 22 provides an output signal corresponding to the quotient of the supplied signal, and means 24 for indicating and/or registering the quotient signal. In operation a patient 30 is connected with a flow resistance 10 by means of a mouth-piece (not shown). When the flow resistance is set to its maximum value the pressure drop #P at the flow resistance varies in accordance with a curve (A), Figure 2 (not shown), and when it is set at its minimum value the pressure drop varies in accodance with a curve (B). When the resistance to respiratory air is periodically switched between its two resistance values, the pressure drop varies in accordance with generally rectangular pulses comprising parts of curves (A), (B).
GB2595871A 1970-04-03 1971-04-19 Direct indicating device for measuring respiratory resistance Expired GB1338501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702016073 DE2016073B2 (en) 1970-04-03 1970-04-03 Direct display device for measuring breathing resistance

Publications (1)

Publication Number Publication Date
GB1338501A true GB1338501A (en) 1973-11-28

Family

ID=5767077

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2595871A Expired GB1338501A (en) 1970-04-03 1971-04-19 Direct indicating device for measuring respiratory resistance

Country Status (7)

Country Link
BE (1) BE765221A (en)
CH (1) CH512909A (en)
DE (1) DE2016073B2 (en)
FR (1) FR2099063A5 (en)
GB (1) GB1338501A (en)
NL (1) NL7104469A (en)
SE (1) SE358086B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238130A (en) * 1989-10-25 1991-05-22 Clement Clarke Int Respiratory test apparatus
US5373851A (en) * 1993-04-19 1994-12-20 Brunswick Biomedical Corporation Specialized peak flow meter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734203A1 (en) * 1997-08-07 1999-02-25 Greiner Wolfgang Dr Appliance for determining breathing resistance
DE19822719A1 (en) * 1998-05-20 1999-12-09 Mueller & Sebastiani Elek Gmbh Appliance for determining respiratory impedance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238130A (en) * 1989-10-25 1991-05-22 Clement Clarke Int Respiratory test apparatus
GB2238130B (en) * 1989-10-25 1993-09-22 Clement Clarke Int Measurement apparatus
US5373851A (en) * 1993-04-19 1994-12-20 Brunswick Biomedical Corporation Specialized peak flow meter

Also Published As

Publication number Publication date
SE358086B (en) 1973-07-23
CH512909A (en) 1971-09-30
DE2016073A1 (en) 1971-10-21
FR2099063A5 (en) 1972-03-10
DE2016073B2 (en) 1978-05-03
DE2016073C3 (en) 1978-12-21
BE765221A (en) 1971-08-30
NL7104469A (en) 1971-10-05

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee