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WO1999065383A1 - Dispositif de mesure des fonctions ventilatoires des poumons - Google Patents

Dispositif de mesure des fonctions ventilatoires des poumons Download PDF

Info

Publication number
WO1999065383A1
WO1999065383A1 PCT/IL1999/000312 IL9900312W WO9965383A1 WO 1999065383 A1 WO1999065383 A1 WO 1999065383A1 IL 9900312 W IL9900312 W IL 9900312W WO 9965383 A1 WO9965383 A1 WO 9965383A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhalation
unit
tube
connector
measuring means
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
Application number
PCT/IL1999/000312
Other languages
English (en)
Inventor
Akiva Sharon
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.)
Tapuz Medical Tech Ltd
Original Assignee
Tapuz Medical Tech Ltd
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 Tapuz Medical Tech Ltd filed Critical Tapuz Medical Tech Ltd
Priority to AU42867/99A priority Critical patent/AU4286799A/en
Publication of WO1999065383A1 publication Critical patent/WO1999065383A1/fr
Anticipated expiration legal-status Critical
Ceased 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—Measuring devices for evaluating the respiratory organs
    • A61B5/097—Devices for facilitating collection of breath or for directing breath into or through measuring devices
    • 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

Definitions

  • the present invention relates to the medical realm of respiratory tests or to be more specific it relates to the scope of lung functions test
  • One of the methods to test lungs functions is by using the "Differential Pressure” method while measuring the differential pressure that is created within a tube into which the subject exhales (Pneumotach).
  • the measuring is performed with a device that includes the exhalation tube and an electronic measuring and calculating device.
  • the patient exhales into the tube that is open on the other end and the middle of it is made narrower by some kind of barrier. From the differences between the pressures created in the tube during exhalation before and after the barrier, one measures and calculates medical parameters such as: Pick Flow Velocity, Forced Vital Capacity and other commonly used parameters such as FEV1, FEV%, FEV1/2 and the Flow - Volume Curve.
  • the Differential Pressure method demands taking precaution measures to prevent transmitting infectious agents from patient to patient Disposable components are, therefore in use today and they are attached in front of the exhaling tube with a dividing micronic membrane through which the patient is exhaling into the testing device.
  • This disposable part is expensive and this is the reason that the test is denied to a large part of population that needs it.
  • the present invention is a device for testing lungs' functions in the method of differential pressure. Its' exhaling unit includes the tube into which the patient exhales. The exhaling unit is detachable from the electronic part of the device; can, then, be taken apart, cleaned and disinfected. It enables the doctor to install a new exhaling unit for each patient and clean and disinfect all the used exhaling units later - to be used again.
  • the present invention is a device to test lung functions, comprising of a detachable exhaling unit and a measuring means for measuring and display wherein the exhaling unit can be attached to or detached from the measuring means.
  • the exhaling unit can be detached, cleaned, disinfected and then reattached.
  • the exhaling unit can be constructed from two parts that, when assembled - create the exhaling unit that comprises of the exhaling tube with a barrier to narrow down the passage; two small holes in the upper part of the tube - one before the barrier and one after the barrier - enabling the passage of pressure but preventing the passage of spit and infectious agents by being placed in the upper part of the tube; two canals transfer the pressure from the small holes to the connector.
  • the connector has two leads that enables the connection of the measuring means to the exhaling unit by means of two pipes that are inserted into the leads.
  • the exhaling unit can be made either from two symmetrical parts that connect one to another, thus creating the unit or from two parts when one of them is the exhaling tube which includes the barrier and the small holes and the other part is the part into which the tube is inserted —in only one possible way. It includes the two canals for pressure transfer and connects to the measuring device.
  • the measuring means includes a connector made of two pipes inserted into the exhaling unit; a transducer that measures the pressure; an analog/digital converter that converts the pressure values into digital values; a processing unit that calculates the necessary values out of measured pressures into an outside equipment for storing, further processing, displaying etc.
  • Figure 1 describes a vertical cut of the exhaling unit
  • Figure 2 describes vertical side cut of half of the exhalation unit.
  • Figure 1 describes a vertical cut of the exhaling unit and the way it is connected to the measuring means.
  • the outer structure of the system (1) comprises of the exhalation tube(2), barrier that narrows the passage through the tube (3), small hole before barrier (4) and a small hole after the barrier (5).
  • the pressure before the barrier passes in the groove that surrounds the exhalation tube and is built inside the outer structure.
  • the groove is confined by two surrounding walls (6 and 8).
  • the pressure is then transferred to the measuring means (11) by a pipe (10) that is attached to it by a suitably placed connector (12).
  • the measuring means is connected to the exhalation unit in a way that enables the connector (12) to be inserted into the pressure transferring pipes (9 and 10).
  • the small hole before and after the barrier (4 and 5) transfer the pressures created before and after the barrier through the groove created before and after by the surrounding walls (6,7 and 8) and the pressure is then transferred via the pipes (9 and 10) connecting to the measuring means.
  • Figure 2 describes vertical side cut of half of the exhalation unit that is built of two symmetrical parts. Attaching the two symmetrical parts, which their vertical side cut is described in Figure 2, creates the exhalation unit which after examination can be easily be dismantled, cleaned and disinfected.
  • the air exhaled by the patient is transferred via the exhalation tube (2) and it encounters the barrier(3) that narrows the passage.
  • the pressure is transferred through the hole in the exhalation tube (4) via the groove created by the surrounding walls ' (8) and the pressure is transferred by the pipe (10) to the measuring means.
  • the arrow (13) describes the transfer of pressure from the hole in the exhalation tube to the connecting pipe and the measuring- means.
  • the present invention is a device for testing lung functions that its' exhalation unit can be changed after being used by each patient, thus preventing transmission of infectious agents.
  • the exhalation unit can be taken apart after the test into parts that can be easily cleaned and disinfected and reassembled to enable reuse without the danger of contamination.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (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

Cette invention se rapporte à un dispositif servant à réaliser l'exploration fonctionnelle respiratoire et comprenant à cet effet une unité d'expiration amovible (2) et une unité de mesure (11) servant pour les mesures et pour l'affichage, l'unité d'expiration (2) pouvant être fixée et détachée de cette unité de mesure (11). Une fois détachée l'unité d'expiration (2) peut être nettoyée, désinfectée et fixée à nouveau.
PCT/IL1999/000312 1998-06-14 1999-06-11 Dispositif de mesure des fonctions ventilatoires des poumons Ceased WO1999065383A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU42867/99A AU4286799A (en) 1998-06-14 1999-06-11 Lungs function measuring device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL124901 1998-06-14
IL12490198A IL124901A0 (en) 1998-06-14 1998-06-14 Lung function measuring device

Publications (1)

Publication Number Publication Date
WO1999065383A1 true WO1999065383A1 (fr) 1999-12-23

Family

ID=11071622

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL1999/000312 Ceased WO1999065383A1 (fr) 1998-06-14 1999-06-11 Dispositif de mesure des fonctions ventilatoires des poumons

Country Status (3)

Country Link
AU (1) AU4286799A (fr)
IL (1) IL124901A0 (fr)
WO (1) WO1999065383A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015200921A3 (fr) * 2014-06-27 2016-08-11 Pulse Health Llc Système d'analyse de l'haleine
CN113100750A (zh) * 2021-04-15 2021-07-13 无锡职业技术学院 一种便于清洗的肺活量测试仪

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137026A (en) * 1990-01-04 1992-08-11 Glaxo Australia Pty., Ltd. Personal spirometer
US5178155A (en) * 1988-06-29 1993-01-12 Mault James R Respiratory calorimeter with bidirectional flow monitors for calculating of oxygen consumption and carbon dioxide production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5178155A (en) * 1988-06-29 1993-01-12 Mault James R Respiratory calorimeter with bidirectional flow monitors for calculating of oxygen consumption and carbon dioxide production
US5137026A (en) * 1990-01-04 1992-08-11 Glaxo Australia Pty., Ltd. Personal spirometer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015200921A3 (fr) * 2014-06-27 2016-08-11 Pulse Health Llc Système d'analyse de l'haleine
US9797815B2 (en) 2014-06-27 2017-10-24 Pulse Health Llc Breath analysis system
US10197477B2 (en) 2014-06-27 2019-02-05 Pulse Health Llc Analysis cartridge and method for using same
US10495552B2 (en) 2014-06-27 2019-12-03 Pulse Health Llc Breath analysis system
CN113100750A (zh) * 2021-04-15 2021-07-13 无锡职业技术学院 一种便于清洗的肺活量测试仪

Also Published As

Publication number Publication date
AU4286799A (en) 2000-01-05
IL124901A0 (en) 1999-01-26

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