EP1014854A1 - Tube respiratoire de spirometre - Google Patents

Tube respiratoire de spirometre

Info

Publication number
EP1014854A1
EP1014854A1 EP98906530A EP98906530A EP1014854A1 EP 1014854 A1 EP1014854 A1 EP 1014854A1 EP 98906530 A EP98906530 A EP 98906530A EP 98906530 A EP98906530 A EP 98906530A EP 1014854 A1 EP1014854 A1 EP 1014854A1
Authority
EP
European Patent Office
Prior art keywords
tube
breathing tube
cylindrical chamber
air
spirometer
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Withdrawn
Application number
EP98906530A
Other languages
German (de)
English (en)
Inventor
Douglas L. Stenslokken
John Kusiak
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.)
Covidien AG
Original Assignee
Sherwood Service AG
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 Sherwood Service AG filed Critical Sherwood Service AG
Publication of EP1014854A1 publication Critical patent/EP1014854A1/fr
Withdrawn legal-status Critical Current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
    • A61B5/091—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

Definitions

  • the present invention relates to an apparatus for measuring human respiration. More particularly, the present invention relates to a spirometer and an improved breathing tube therefor. Even more specifically, the present invention relates to a spirometer breathing tube which can be reduced in length for packaging and transporting with the spirometer, and can be extended to maintain a desired length and configuration during use.
  • Patent No. 4,499,905 to Greenberg et al . U.S. Patent No. 3,811,671 to Turnbull, U.S. Patent No. 4,086,918 to Russo, and U.S. Patent No. 3,695,608 to Hanson.
  • Such devices typically involve the exhalation of air into, or inhalation of air from, an enclosed chamber.
  • spirometers for the purpose of measuring the amount of air entering or leaving human lungs. Such instruments are sometimes referred to as spirometers. Particular examples are disclosed in U.S. Patent No. 4,499,905 to Greenberg et al . , U.S. Patent No. 3,722,506 to McMillan and U.S. Patent No. 3,826,247 to Ruskin et al . Many spirometer devices are costly and cumbersome. Although newer, more portable instruments are now available, there remains a need for volumetric spirometers which can be more conveniently packaged for transport and more convenient for the user to operate.
  • the spirometer device disclosed by Greenberg et al . in U.S. Patent No. 4,499,905 is described as a portable spirometer which is accurate and reliable, yet relatively inexpensive and easily transportable.
  • the Greenberg et al . spirometer includes a breathing tube which is formed with a series of corrugations along the length thereof. The corrugations prevent the breathing tube from accidentally kinking during use.
  • the tube may be made of a polyethylene or a ethylene vinyl acetate.
  • the Greenberg breathing tube although flexible, cannot hold itself in a particular configuration desired by the user. Also, the Greenberg tube cannot be conveniently packaged with the device since it cannot be reduced in its overall length for packaging. There remains therefore a need in the art for an improved breathing tube which is conveniently packageable with the spirometer for shipment thereof, while at the same time, is much more user friendly than prior art tubes, allowing the user to chose the length and configuration thereof during operation.
  • a further object of the present invention is to provide an inhalation device that includes a breathing tube which can be reduced in length for packaging, and thereafter conveniently extended and configured by the user during use.
  • a further object of the invention is to provide an inhalation device which will indicate both the volume of inhaled air and the rate of inhalation.
  • the presently preferred embodiment of the invention includes a spirometer having a first and second chamber.
  • the first hollow cylindrical chamber includes a piston which is suitably positioned and adapted to be movable therein.
  • the chamber is vented to atmosphere.
  • the second hollow chamber includes a counterweight position therein and is also vented to atmosphere.
  • the two chambers are integrally formed with a base and a handle as a single integral unit preferably formed of a polymeric material .
  • An inhalation tube assembly includes a flow passage way which is in air flow communication with both the first and second chamber and which is integrally formed therewith.
  • the flow passage way forms a connector that can mate with a breathing tube which completes the assembly and the flow passage way.
  • the remote end of the breathing tube may be formed into a mouth piece through which a patient can inhale to cause the piston and the counter weight to move.
  • the relationship between the inhalation tube assembly and the first and second chambers is such that a major portion of the inhaled air comes from the atmosphere through the second chamber and a minor portion from the first chamber in a predetermined manner so that a large volume of air can be inhaled with a relatively compact device.
  • the first chamber piston assembly indicates the volume of air inhaled by its position within the chamber. Because the piston has weight and friction, it slows down the air flow from the first chamber. To compensate for this resistance, the counter weight in the second chamber operates to provide an equivalent or nearly an equivalent amount of drag to the air flow through the breathing tube assembly.
  • the counter weight is constructed and arranged to take into account the effect of the frictional drag forces on the amount of air being inhaled.
  • the preferred embodiment of the breathing tube of the present invention is formed of an elongated section of corrugated polymeric material which allows the tube to be collapsed to a shortened length which is approximately equivalent to the height of the spirometer, but may be extended to a length up to five times its completely collapsed length. Also, the corrugations used to collapse the tube will allow the tube to be bent or positioned in any desired configuration. The tube will remain in the configuration until changed by the user. In this manner, the user may adjust the tube to a specific length which allows optimal viewing of the volume and flow displacement elements of the spirometer, while at the same time allows the tube to be easily placed in the user's mouth.
  • the tube While in its completely collapsed configuration, the tube may be positioned for packaging with the spirometer directly adjacent the spirometer' s handle in a stream line manner which simplifies packaging of the device for shipment. Further, the fully collapsed configuration of the tube allows for conveyor type automation of the packaging process, potentially reducing manuf cturing costs and simplifying the packaging of the device by a user for easy storage thereof if desired.
  • Figure 1 is a perspective view of a spirometer made in accordance with the principles of the present invention
  • Figure 2 is a front view of a spirometer and fully collapsed breathing tube positioned thereon for packaging as contemplated in the preferred embodiment of the present invention
  • Figure 3 is a perspective view of the spirometer with the preferred embodiment of the breathing tube attached thereto for use.
  • the spirometer 10 includes a base 12 on which the inhalation structure is mounted.
  • the base 12 in addition to serving as a base, can also function as a stand to maintain the inhalation structure in an upright position.
  • the base 12 holds a first cylindrical chamber 14 and second cylindrical chamber 16 in a vertical upright position.
  • the first and second chambers 14 and 16 respectively are integrally formed as part of a frame 18 which also forms a handle 20 and the breathing tube connector 22.
  • the interior of the first cylindrical chamber 14 is at least in part preferably frosted to reduce the surface area and to reduce resistance for movement of a piston 24 therein.
  • the first and second cylindrical chambers 14 and 16 respectively are in fluid communication with the breathing tube connector 22 by virtue of a pair of air flow passage ways (not shown) .
  • the first cylindrical chamber 14 is open to the atmosphere by virtue of a series of apertures 26.
  • the second cylindrical chamber 16 includes a counter weight 28 and is also open to the atmosphere by virtue of a series of apertures 30.
  • the first and second cylindrical chambers 14 and 16 are designed so that in use, a relatively large portion of the inhalation air of a patient comes from the atmosphere and passes through the spirometer 10 and only a relatively small portion of the inhalation comes directly from within the spirometer 10. This is significant in that it permits the inhalation of a relatively large volume of air even though the spirometer 10 itself is relatively compact in size .
  • approximately 2,500 ml of air can be inspired with a spirometer 10 which has an interior volume in its first cylindrical chamber 14 of only 5% to 10% of that total amount.
  • An example of a spirometer 10 used in accordance with the principles of the present invention is presently manufactured and sold by Sherwood Medical Company under the trademark Voldyne ® 2500.
  • Voldyne ® 2500 A detailed explanation of the mechanics of the flow of inspired air through the spirometer 10 of the present invention is presented and described in U.S. Patent No. 4,499,905 issued to Greenberg et al . which is incorporated herein by reference in its entirety.
  • the piston 24 moves upwardly upon inhalation to a position corresponding to the total volume of inspired air as indicated by the indicia 32.
  • the counter weight 28 moves upwardly based on the rate of air flow through the second cylindrical chamber 16 and gives an indication of the air flow rate to the user by means of the indicia 34.
  • Air inspired from the first and second cylindrical chambers 14 and 16 into the breathing tube 36 must pass through a pair of air flow passageways (not shown) as noted previously. These air flow passageways are sized such that the passageway leading to the atmosphere through the second cylindrical chamber 16 is considerably greater than the size of the passageway leading to the first cylindrical chamber 14 in which the piston 24 is located.
  • the ratio of the size of the pair of air flow passageways can vary depending on the circumstances from 4:1 to 15:1.
  • This ratio of the size of the pair of air passageways controls the ratio of air being withdrawn from the first cylindrical chamber 14 with respect to the amount of air being drawn from the atmosphere through the second cylindrical chamber 16.
  • the relative size of the pair of air passageways determines the amount of air drawn from the first cylindrical chamber 16, which in turn is a fixed ratio of the total amount of inspired air.
  • the amount of air withdrawn from the first cylindrical chamber 14 determines the amount of movement of the piston 24 therein, which in turn therefor determines the proper position of the indicia markings 32 thereon.
  • the counter weight 28 provides resistance in the second cylindrical chamber 16 to balance the resistance in the first cylindrical chamber 14 caused by resistance to movement encountered by the piston 24.
  • the counter weight 28 therefore maintains the accuracy of the position of the piston 24 throughout the entire indicated range, regardless of flow rate changes.
  • the spirometer 10 is shown in conjunction with the breathing tube 36.
  • the breathing tube 36 is shown in its fully collapsed configuration and positioned on the spirometer 10 in the opening 38 between the handle 20 and the first cylindrical chamber 14. This is the preferred position for packaging and transporting the packaged device prior to use, and for repackaging the device for storage in between uses if desired.
  • the opening 38 is sized to accommodate the rough diameter and minimize length of breathing tube 36 so as to minimize the total overall dimensions of the spirometer 10 and breathing tube 36 when oriented in the manner as shown in Figure 2 for packaging or storage .
  • the breathing tube 36 is formed with a mouthpiece 40 at one end thereof which may be formed separately from the tube and subsequently attached, or which may be formed integrally therewith, and a connector 42 at the opposite end thereof.
  • the connector 42 is sized to fit over the breathing tube connector 22 of the spirometer 10 in an airtight friction fit.
  • the mouthpiece 40 is sized to easily fit within the mouth of the user and be gripped by the user's teeth during breathing exercises.
  • the mouthpiece is shaped to allow the user's mouth to easily seal there around to ensure that all inspired air passes through the tube 36.
  • the breathing tube 36 of the present invention is used by removing it from its storage position on the spirometer 10 and attaching the connector 42 thereof to the breathing tube connector 22.
  • the central section 44 of the tube 36 is formed of many short bends or ripples which are evenly spaced along the tube in accordion fashion and which allow the tube to be collapsed or expanded.
  • Each bend or corrugation includes a corrugation peak and a corrugation valley.
  • the diameter of the tube 36 changes approximately one quarter of an inch between each corrugation peak and valley in the preferred embodiment of the tube 36.
  • the preferred embodiment of the tube 36 has an internal diameter at the corrugation valleys thereof of approximately seven-eighths of an inch and at the corrugation peaks thereof of approximately one and an eighth inches.
  • the length of the tube 36 in its fully expanded configuration is preferably 18 inches and a fully retracted length of approximately six inches.
  • the tube 36 is reduced to its completely collapsed configuration and placed in the opening 38 formed by the handle 20 of the spirometer 10.
  • the tube 36 may be placed in this position during the manufacturing and packaging of the device by an automated procedure. For example, a large number of tubes 36, in their fully collapsed and straight configuration, can be loaded into a hopper which will orient them all in a uniform direction and load them to a conveyor belt or to a robotic arm which in turn can drop each tube 36 in place in the opening 38 of a spirometer 10 as each spirometer 10 is indexed into position for receiving a tube 36.
  • the combined tube 36 and base 12 can then be immediately packaged in such a manner as to retain the relative position of the tube 36 in the opening 38.
  • the tube may be retained in the opening 38 by means of an intermediate retention device, such as adhesive tape, and then subsequently the combined breathing tube 36 and base 12 can be packaged.
  • the user removes the tube 36 from the opening 38 and attaches the connector 42 thereof over the breathing tube connector 22.
  • the user extends the tube 36 to a desired length, and bends the tube 36 to the desired configuration for use (see Figure 3) .
  • the user may adjust the tube 36 to a specific length which allows optimal viewing of the volume and flow displacement of the spirometer 10, while at the same time shaping the tube 36 in a configuration which allows easy placement of the mouthpiece 40 thereof into the user's mouth.
  • the height of the piston 24 can be recorded by positioning the height indicator 46 at the highest point of the piston 24 against the indicia 32.
  • the air inhalation also causes the counter weight 28 to rise in the second cylindrical chamber 16 to give a measure against indicia 34 thereon of the rate of air flow.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pulmonology (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)
  • Physics & Mathematics (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)
  • Measuring Volume Flow (AREA)
  • Electron Tubes For Measurement (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

L'invention concerne un spiromètre volumétrique léger et portable (10), destiné à mesurer le volume et le débit d'air inhalé par des poumons humains. Ce spiromètre (10) comprend deux chambres cylindriques transparentes (14, 16), qui communiquent avec un ensemble tube respiratoire (36). Cet ensemble tube respiratoire (36) est conçu exclusivement pour diviser l'air inhalé en deux parties déterminées, l'une de ces parties venant de la première chambre (14), et l'autre venant de la seconde chambre (16). Le tube respiratoire (36) peut se plier afin de réduire sa longueur totale jusqu'à environ la hauteur du spiromètre (10), et peut également être transporté avec ledit spiromètre (10) au moyen d'une poignée (20) située sur ce dernier. En marche, le tube respiratoire (36) peut s'allonger jusqu'à environ trois fois sa longueur en position pliée. Ce tube respiratoire (36) présente de préférence une structure en accordéon, qui permet à l'utilisateur d'ajuster ledit tube selon sa configuration préférée.
EP98906530A 1997-02-20 1998-02-19 Tube respiratoire de spirometre Withdrawn EP1014854A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US3796097P 1997-02-20 1997-02-20
US37960P 1997-02-20
PCT/US1998/003118 WO1998036687A1 (fr) 1997-02-20 1998-02-19 Tube respiratoire de spirometre

Publications (1)

Publication Number Publication Date
EP1014854A1 true EP1014854A1 (fr) 2000-07-05

Family

ID=21897294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98906530A Withdrawn EP1014854A1 (fr) 1997-02-20 1998-02-19 Tube respiratoire de spirometre

Country Status (8)

Country Link
EP (1) EP1014854A1 (fr)
JP (1) JP2001519688A (fr)
CN (1) CN1248154A (fr)
AU (1) AU6173198A (fr)
BR (1) BR9807846A (fr)
CA (1) CA2280692A1 (fr)
NO (1) NO994013L (fr)
WO (1) WO1998036687A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6656129B2 (en) * 2001-01-18 2003-12-02 Stephen D. Diehl Flow based incentive spirometer
ATE547984T1 (de) * 2004-04-07 2012-03-15 Medinet Spa Vorrichtung zur beurteilung des inhalationsflusses und des volumens
AU2008221506B2 (en) 2007-09-20 2011-01-20 ResMed Pty Ltd Retractable Tube for CPAP
GB2500893B (en) * 2012-04-03 2017-12-27 Medchip Solutions Ltd Spirometer
CN109107012A (zh) 2013-03-15 2019-01-01 费雪派克医疗保健有限公司 鼻套管组件和相关部件
US10238914B2 (en) * 2013-06-14 2019-03-26 David L. Rettig, JR. Incentive spirometer for sustained maximal inspiration
ES2914031T3 (es) 2013-08-09 2022-06-07 Fisher & Paykel Healthcare Ltd Elementos y accesorios asimétricos de administración nasal para interfaces nasales
JP6348693B2 (ja) * 2013-08-21 2018-06-27 オイレス工業株式会社 変位測定装置
USD870269S1 (en) 2016-09-14 2019-12-17 Fisher & Paykel Healthcare Limited Nasal cannula assembly
CN107007283B (zh) * 2017-04-18 2020-05-05 南阳师范学院 一种肺活量测量装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3379194A (en) * 1965-06-29 1968-04-23 United Aircraft Corp Fluid amplifier controlled respirator
US3695608A (en) 1970-08-17 1972-10-03 Lourie Visual Etudes Inc Device for practicing breath control
US3722506A (en) 1970-10-15 1973-03-27 Airco Inc Rolling seal spirometer
US3826247A (en) 1972-06-27 1974-07-30 A Ruskin Pulmonary achievement trainer
US3811671A (en) 1972-08-25 1974-05-21 Chesebrough Ponds Container for forced expiration exercises
US4086918A (en) 1976-02-11 1978-05-02 Chesebrough-Pond's Inc. Inhalation device
US4259951A (en) * 1979-07-30 1981-04-07 Chesebrough-Pond's Inc. Dual valve for respiratory device
US4499905A (en) 1982-05-05 1985-02-19 Chesebrough-Pond's Inc. Apparatus for measuring human respiration
US4498472A (en) * 1983-01-27 1985-02-12 Tanaka John S Smoke mask

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9836687A1 *

Also Published As

Publication number Publication date
NO994013L (no) 1999-10-05
BR9807846A (pt) 2000-02-22
WO1998036687A1 (fr) 1998-08-27
CA2280692A1 (fr) 1998-08-27
JP2001519688A (ja) 2001-10-23
NO994013D0 (no) 1999-08-19
CN1248154A (zh) 2000-03-22
AU6173198A (en) 1998-09-09

Similar Documents

Publication Publication Date Title
US4221381A (en) Respiratory exerciser
US4327740A (en) Incentive spirometer
EP0079795B1 (fr) Simulateur pneumatique de poumon
EP1014854A1 (fr) Tube respiratoire de spirometre
US4898166A (en) Resuscitation bag control apparatus
US4096855A (en) Incentive spirometer
WO2008024375A2 (fr) Dispositif d'entraînement en endurance des muscles respiratoires et son procédé d'utilisation
US5067707A (en) Apparatus for respiratory training
GB2070432A (en) Ventilatory muscle training apparatus
EP0134272B1 (fr) Appareil de mesure pour la respiration humaine
US4473082A (en) Lung exerciser with variable resistance
US4241740A (en) Bellows type incentive spirometer
WO1981002982A1 (fr) Dispositif spirometrique d'inhalation pour administrer des medicaments a action pulmonaire
US4327741A (en) Device for measuring respiration volume
US4363328A (en) Inhalation exerciser
EP3389753A1 (fr) Dispositif avec indicateur de débit
US4323078A (en) Collapsible respiratory exerciser
US4182347A (en) Air inhalation flow rate measuring device
US4324260A (en) Volumetric spirometer
CN211885227U (zh) 一种呼吸内科用肺功能训练器
US3821950A (en) Respirometer
CA2178041A1 (fr) Manometre monoservice pour reanimateurs
CN210078763U (zh) 一种缩唇呼吸训练装置
CN216877514U (zh) 一种呼吸气体检测装置
CN210323074U (zh) 一种吸气流速计

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: 19990818

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE

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: 20010901