FR2535613A1 - Improvement to breathing valves - Google Patents

Improvement to breathing valves Download PDF

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Publication number
FR2535613A1
FR2535613A1 FR8218627A FR8218627A FR2535613A1 FR 2535613 A1 FR2535613 A1 FR 2535613A1 FR 8218627 A FR8218627 A FR 8218627A FR 8218627 A FR8218627 A FR 8218627A FR 2535613 A1 FR2535613 A1 FR 2535613A1
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FR
France
Prior art keywords
cap
elastic
foresaid
seat
tubing
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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.)
Granted
Application number
FR8218627A
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French (fr)
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FR2535613B1 (en
Inventor
Yves Beitz
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.)
LEJEUNE SEITZ AMELINE LABO
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LEJEUNE SEITZ AMELINE LABO
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Publication date
Application filed by LEJEUNE SEITZ AMELINE LABO filed Critical LEJEUNE SEITZ AMELINE LABO
Priority to FR8218627A priority Critical patent/FR2535613B1/en
Publication of FR2535613A1 publication Critical patent/FR2535613A1/en
Application granted granted Critical
Publication of FR2535613B1 publication Critical patent/FR2535613B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing valves

Abstract

The invention relates to a breathing valve consisting of a body 1 delimiting internally a free volume 1a fitted with three exit pipes 2, 3, 4 so as to form a pipe tee, via a set 5 of seats and flaps situated inside the said casing 1 making it possible to ensure selectively communication of the foresaid branch pipe 4 with the entry tube 2 and the exhaust tube 3, the flap 5 consisting of a cap 6 made of an elastic material covering one end of the entry tube 2 provided with elastic means 6b, 7, 8 in order to constitute at least one opening. According to the invention the seat of the foresaid flap consists of an end part 4a of the branch pipe 4 inside the casing situated opposite the entry tube 2 and capable of interacting with the foresaid cap 6 in a relaxed position under the effect of its characteristic elasticity and in that the foresaid elastic means 6b, 7, 8 are situated on the wall part of the cap 6 circumscribed by the said seat. Application to medical devices.

Description

Perfectionnement aux valves respiratoires.Improvement of the respiratory valves.

La prdsente invention concerne un perfectionnement aux valves respiratoires du type en T dans lesquelles chacun des trois raccords sont counectables å une source de gaz insufflé, à l'atmosphère. et à un patient. The present invention relates to an improvement to the T-type respiratory valves in which each of the three connections is suitable for a source of blown gas, to the atmosphere. and to a patient.

Les valves connues de ce genre présentent: soit des systèmes de clapet internes gdnéralement complexes et motteux pour tenter d'-éviter toute communication non souhaité entre l'atmosphère et soit le malade soit la source de gaz d'insufflation, et dans ce cas les inconvénients inhérents a ces systèmes (fortes résistances mécaniques, temps de réponse non négligeable, eott élevé...) soit des systèmes de clapets simples par membranes souples déformables qui ne permettent pas d'assurer de manière stre et étanche les obtu- rations souhaitées. Known valves of this kind have: either generally complex and lumpy internal valve systems in an attempt to avoid any unwanted communication between the atmosphere and either the patient or the source of insufflation gas, and in this case the drawbacks inherent in these systems (high mechanical resistance, non-negligible response time, high eott, etc.), ie simple valve systems by flexible deformable membranes which do not allow the desired obturations to be securely and tightly sealed.

L'invention entend pallier les inconvénients des valves connues en proposant un perfectionnement dans lequel la valve respiratoire selon l'invention est constituée par un corps délimitant intérieurement un volume libre équipé de trois tubulures de sortie formant un raccord en pour, respectivement, une cana- lisation dtadmission de gaz, une canalisation de dérivation en direction d'un patient et une canalisation d'échappement, par un ensemble de sièges et clapets situé a -l#intérieur dudit boîtier permettant d'assurer sélectivement une communication de la tubulure de dérivation susdite avec la tubulure d'admission et la tubulure d'échappement, ledit clapet étant constitué par un bonnet en maté- riau élastique coiffant une extrémité interne au boîtier de la tubulure d'admission pourvu dans sa paroi de moyens élastiques pour constituer au moins une ouverture lorsque la différence de pression entre la face interne de ce bonnet et sa face externe est supérieure b une valeur donnée. The invention intends to overcome the drawbacks of known valves by proposing an improvement in which the respiratory valve according to the invention consists of a body internally delimiting a free volume equipped with three outlet pipes forming a connection for, respectively, a cana- gas inlet connection, a bypass line to a patient and an exhaust line, by a set of seats and valves located inside the housing allowing selective communication of the above branch line with the intake manifold and the exhaust manifold, said valve being constituted by a bonnet of elastic material covering an end internal to the casing of the intake manifold provided in its wall with elastic means to constitute at least one opening when the pressure difference between the internal face of this cap and its external face is greater than a given value.

Selon une caractéristique principale de l'invention, le siège du clapet susdit est constitué par une partie terminale de la tubulure de.ddrivation interne au bottier située en regard de la tubulure d'admission et susceptible de coopérer avec le bonnet susdit en position de repos sous l'effet de son élasticité propre et en ce que les moyens élastiques susdits sont situés sur la partie de paroi du bonnet circonscrite par ledit siège. According to a main characteristic of the invention, the seat of the aforementioned valve is constituted by an end portion of the internal dedrive tubing located opposite the intake manifold and capable of cooperating with the above-mentioned cap in the rest position under the effect of its own elasticity and in that the above-mentioned elastic means are located on the wall part of the cup circumscribed by said seat.

En particulier, les moyens d'ouverture élastiques. susdits sont constitués par une paroi de fond du bonnet dont les bords extérieurs constituent des ivres élastiques de recouvrement t'un retour rigide des parois latérales du bonnet délimitant les bords d'une ouverture circulaire dont ladite paroi est un Qbturateur. In particular, the elastic opening means. aforementioned are constituted by a bottom wall of the bonnet, the outer edges of which constitute elastic covering drunks, a rigid return of the lateral walls of the bonnet delimiting the edges of a circular opening of which said wall is a shutter.

Enfin, il sera avantageux de prévoit que la partie terminale susdite de la tubulure de dérivation soit évasée pour constituer un siège d'appui des parois latérales du bonnet. Finally, it will be advantageous to provide that the aforementioned end portion of the bypass tubing is flared to form a support seat for the side walls of the cap.

L'invention sera mieux comprise au cours de la description donnée ci-aprbs à titre d'exemple purement indicatif et non limitatif qui permettra d'en dégager les avantages et les caractéristiques secondaires. The invention will be better understood during the description given below by way of purely indicative and nonlimiting example which will make it possible to identify the advantages and the secondary characteristics thereof.

Il sera fait référence aux dessins annexés dans lesquels
- la figure 1 illustre la valve selon l'invention en position de repos ou d'expiration du malade;
- la figure 2 est un schéma de la valve selon l'invention pendant le temps d'insufflation.Reference will be made to the accompanying drawings in which
- Figure 1 illustrates the valve according to the invention in the patient's rest or expiration position;
- Figure 2 is a diagram of the valve according to the invention during the insufflation time.

En se reportant à ces figures on voit une valve selon l'invention constituée par un bottier 1 définissant un volume intérieur la d'où sont issues trois tubulures de raccordement 2, 3, 4. Referring to these figures, there is seen a valve according to the invention constituted by a shoemaker 1 defining an interior volume from which three connection pipes 2, 3, 4 originate.

La tubulure 2 est destinée au branchement de la valve sur une canalisation issue d'une source de gaz d'insufflation non représentée.Tubing 2 is intended for connecting the valve to a pipe coming from a source of insufflation gas, not shown.

La tubulure 4 est à brancher sur un conduit menant au patient tandis que la tubulure 3 met le volume intérieur la en communication avec l'atmosphère.The tubing 4 is to be connected to a conduit leading to the patient while the tubing 3 places the interior volume 1a in communication with the atmosphere.

Pour assurer des liaisons sélectives entre les diverses tubulures et le volume intérieur la, on a-dispose à l'intérieur du boîtier un clapet 5 qui est constitué par une membrane souple et déformable élastiquement, en forme de bonnet 6. Ce bonnet coiffe l'extrdmité interne 2a au volume la de la tubulure 2 sur laquelle il est assujetti de manière étanche par un bourrelet 6a. L'extrémité 6b du bonnet opposée au bourrdet 6a possède une ouverture 7
enforcés Se dont les sont relativement plus rigides que le reste de la membrane. Ainsi le bonnet 6 comporte une paroi d'extrémité en forme d'anneau rigide pratiquement indéformable sous l'effet des différences de pression existant à son niveau.L'ouverture 7 est quant à elle recouverte par un opercule 8 en matériau élasti- quement déformable qui, en position de repos (figure 1) vient en recouvrement par ses bords sur les bords rigides de l'ouverture 7
Cet opercule est situé à l'extérieur du bonnet 6 et sa périphérie peut s'écarter des bords de l'ouverture 7 (figure 2) quand il existe entre l'intérieur et l'extérieur du bonnet une différence de pression supérieure à une valeur donnée correspondant à la réoistsnce de l'opercule 8
En position de repos, le bonnet 6 affecte la forme de la figure 2 sous l'effet de son élasticité propre hormis l'opercule 8 qui repose sur les bords de l'orifice 7 comme dans la figure 1).Dans cette position le bonnet est au contact de lweztrd- mité 4a interne au bottier 1 de la tubulure 4. Cette extrémité est avantageusement évasée pour que le contact susdit soit réalisé au voisinage de la portion de plus grand diamètre du bonnet circos- crivant ainsi l'ouverture 7 qui peut être de diamètre asseau impor- tant et autorisant un débattement de l'opercule 8 suffisant pour disposer d'une section de passage minimisant les résistances.To ensure selective connections between the various tubes and the interior volume 1a, there is-inside the housing a valve 5 which is constituted by a flexible and elastically deformable membrane, in the form of a cap 6. This cap covers the internal end 2a to the volume of the tubing 2 to which it is tightly secured by a bead 6a. The end 6b of the cup opposite the bead 6a has an opening 7
reinforced Se whose are relatively stiffer than the rest of the membrane. Thus, the cap 6 has an end wall in the form of a rigid ring which is practically undeformable under the effect of the pressure differences existing at its level. The opening 7 is covered by a cover 8 made of elastically deformable material. which, in the rest position (Figure 1) overlaps by its edges on the rigid edges of the opening 7
This cover is located outside the cup 6 and its periphery can deviate from the edges of the opening 7 (FIG. 2) when there is between the inside and the outside of the cup a pressure difference greater than a value data corresponding to the reoistsnce of cover 8
In the rest position, the cap 6 assumes the shape of Figure 2 under the effect of its own elasticity except for the cover 8 which rests on the edges of the orifice 7 as in Figure 1). In this position the cap is in contact with lweztrd- mity 4a internal to the boot 1 of the tubing 4. This end is advantageously flared so that the abovementioned contact is made in the vicinity of the portion of larger diameter of the bonnet circulating thus creating the opening 7 which can be of large asseau diameter and allowing a movement of the cover 8 sufficient to have a passage section minimizing the resistances.

En phase d'insufflation, c'est-à-dire passage d'un gaz de la tubulure d'admission 2 vers la tubulure 4 du patient la pression et le débit du gaz insufflé soulèvent l'opercule 8 tout en assurant un meilleur appui de la membrane 5 sur la partie 45 susdite donc renforçant l'étanchéité de l'isolation du conduit 4 par rapport au volume la donc à l'atmosphère. Cette configuration permet d'éviter toute fuite de gaz en direction de l'atmospbère. In the insufflation phase, that is to say passage of a gas from the intake manifold 2 to the patient's manifold 4 the pressure and the flow rate of the blown gas raise the seal 8 while ensuring better support of the membrane 5 on the aforementioned part 45 therefore strengthening the sealing of the insulation of the conduit 4 with respect to the volume 1a therefore to the atmosphere. This configuration makes it possible to avoid any gas leak in the direction of the atmosphere.

L'insufflation étant termbnde, le patient expire et repousse le bonnet 6 dans sa configuration de la figure 1. Dans le meme temps l'opercule 8 referme l'ouverture 7 et aucun gaz expiré ne peut atteindre la tubulure 2. The insufflation having ended, the patient exhales and pushes back the cap 6 in its configuration of FIG. 1. At the same time the cover 8 closes the opening 7 and no exhaled gas can reach the tube 2.

Enfin, en cas d'inspiration spontanée du patient, le bonnet se trouve placé dans sa configuration de la figure 2 et ce n'est que du gaz d'insufflation qui pénètre dans ses poumons. Finally, in case of spontaneous inspiration of the patient, the cap is placed in its configuration of Figure 2 and it is only insufflation gas which enters his lungs.

En effet, la tubulure 4 est isolée, comme pendant la phase d'insuf- flation, de l'atmosphère par le contact bonnet 6 partie évasée 4e
A ce propos on notera que la rigidité de la partie 6b a un effet de bouchon qui a tendance à se coincer dans la partie évasée 4e sous l'effet de la dépression crécepar une inspiration spontanée renforçant ainsi l'étanchéité du contact.In fact, the tubing 4 is isolated, as during the inflation phase, from the atmosphere by the cup contact 6 flared part 4th
In this regard, it will be noted that the rigidity of the part 6b has a plug effect which tends to get stuck in the flared part 4e under the effect of the depression created by a spontaneous inspiration thus reinforcing the tightness of the contact.

La valve selon l'invention est de construction simple, de fonctionnement efficace tout en mettant en oeuvre un mécanisme de clapet léger possédant un temps de réponse très court et une résistance mécanique et aérodynamique très faible. The valve according to the invention is of simple construction, of efficient operation while implementing a light valve mechanism having a very short response time and a very low mechanical and aerodynamic resistance.

L'invention trouve une application intéressante dans le domaine des appareils médicaux, Elle n'est pas limitée à la description qui vient d'en etre donnée mais couvre au contraire toutes les variantes qui pourraient lui etre apportées sans sortir de son cadre ni de son esprit.  The invention finds an interesting application in the field of medical devices, it is not limited to the description which has just been given but on the contrary covers all the variants which could be made to it without departing from its scope or its mind.

Claims (3)

REVENDICATIONS 1. Valve respiratoire constituée par un corps (1) dd mitant intérieurement un volume libre (la) équipé de trois tubulures (2, 3, 4) formant un raccord en T pour respectivement une canalisation d'admission de gaz, une canalisation de dérivation en direction d'un patient et une canalisation d'échappement, par un ensemble (5) de sidges et clapets situé l'intérieur dudit bottier (1) permettant d'assurer sélectivement une communication de la tubulure de dérivation (4) susdite avec la tubulure d'admission (2)- et la tubulure d'dchappement (3), ledit clapet (5) étant constitué par un bonnet (6) en matériau élastique coiffant une extrémité interne (2a) au bottier (1) de la tubulure (2) d'admis- sion pourvu dans sa paroi de moyens élastiques (6b, 7, 8)pour constituer au moins une ouverture lorsque la différence de pression entre la face interne de ce bonn e t et se face externe est supé- rieure à une valeur donnée, caractérisée an ce que le siège du clapet susdit est constitué par une partie. terminale (4e) de la tubulure de dérivation (4) interne au boîtier située en regard de la tubulure d'admission (2) et susceptible de coopérer avec le bonnet (6) susdit en position de repos sous l'effet de son élasti- cité propre et en ce que les moyens élastiques (6b > 7, 8) susdits sont situés sur la partie de paroi du bonnet 6 circonscrite par.1. Breathing valve constituted by a body (1) dd internally mittening a free volume (la) equipped with three tubes (2, 3, 4) forming a T-connector for respectively a gas inlet pipe, a bypass pipe towards a patient and an exhaust pipe, by a set (5) of sidges and valves located inside said casing (1) allowing to selectively ensure communication of the above-mentioned bypass tubing with the intake manifold (2) - and the exhaust manifold (3), said valve (5) being constituted by a bonnet (6) of elastic material covering an internal end (2a) of the casing (1) of the manifold ( 2) inlet provided in its wall with elastic means (6b, 7, 8) to constitute at least one opening when the pressure difference between the internal face of this bonn and and this external face is greater than a given value, characterized in that the seat of the aforementioned valve is constituted by a part. end (4e) of the bypass tubing (4) internal to the housing located opposite the intake tubing (2) and capable of cooperating with the above-mentioned cap (6) in the rest position under the effect of its elasticity clean city and in that the above-mentioned elastic means (6b> 7, 8) are located on the wall part of the cap 6 circumscribed by. ledit siège. said seat. 2. Valve respiratoire selon la revendication 1, caractériséeen ce que les moyens élastiques d'ouverture susdits sont constitués par une paroi de fond (8) du bonnet (6) dont les bords extérieurs constituent des lèvres élastiques de recouvrement d'un retour rigide (6b) des parois latérales du bonnet 6 délimitant les bords d'une ouverture (7) circulaire dont ladite paroi (8) est un obturateur.2. Breathing valve according to claim 1, characterized in that the above-mentioned elastic opening means consist of a bottom wall (8) of the cap (6) whose outer edges constitute elastic lips covering a rigid return ( 6b) of the side walls of the cap 6 delimiting the edges of a circular opening (7) of which said wall (8) is a shutter. 3. Valve selon la revendication 1 ou la revendication 2, caractérisés an ce que la partie terminale (4a) susdite de la tubulure de dérivation est évasée pour constituer un sidge d'appui des parois latérales du bonnet (6). 3. Valve according to claim 1 or claim 2, characterized in that the aforementioned end portion (4a) of the bypass tubing is flared to form a support sidge of the side walls of the cap (6).
FR8218627A 1982-11-05 1982-11-05 IMPROVEMENT IN RESPIRATORY VALVES Expired FR2535613B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8218627A FR2535613B1 (en) 1982-11-05 1982-11-05 IMPROVEMENT IN RESPIRATORY VALVES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8218627A FR2535613B1 (en) 1982-11-05 1982-11-05 IMPROVEMENT IN RESPIRATORY VALVES

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FR2535613A1 true FR2535613A1 (en) 1984-05-11
FR2535613B1 FR2535613B1 (en) 1986-04-25

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712390A1 (en) * 1987-04-11 1988-10-27 Obermayer Anton Valve
DE10050443A1 (en) * 2000-10-12 2002-04-25 Weinmann G Geraete Med Varying breathing apparatus flow cross-section involves reducing effective cross-section for increasing expiration breathing pressure, increasing for reducing expiration pressure
EP1275412A2 (en) * 2001-06-27 2003-01-15 Fisher & Paykel Healthcare Limited Nasal breathing mask
WO2008114079A1 (en) * 2007-03-21 2008-09-25 Resmed Paris Passive gas regulating valve for a respiratory system
US20150231358A1 (en) * 2005-08-15 2015-08-20 Resmed Limited Humidifier and/or flow generator for cpap device
US20160317775A1 (en) * 2005-08-15 2016-11-03 Resmed Limited Compliant coupler or adaptor
US10589042B2 (en) 2011-11-11 2020-03-17 ResMed Pty Ltd Exchanger assembly for respiratory treatment
WO2023170342A1 (en) * 2022-03-10 2023-09-14 Planmeca Oy Ventilator with breathing valve assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB748363A (en) * 1953-08-05 1956-05-02 British Oxygen Co Ltd Improvements in or relating to fluid actuated valves
FR1190467A (en) * 1958-01-27 1959-10-13 Double-acting compensated valve
US3435839A (en) * 1965-05-21 1969-04-01 Elder Oxygen Co Inc Backflow bypassing valve for breathing apparatus
US3739801A (en) * 1971-12-06 1973-06-19 Rudolph H Low actuating pressure type valve structure
US3978878A (en) * 1975-09-18 1976-09-07 Hans Rudolph Resilient supply and exhaust valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB748363A (en) * 1953-08-05 1956-05-02 British Oxygen Co Ltd Improvements in or relating to fluid actuated valves
FR1190467A (en) * 1958-01-27 1959-10-13 Double-acting compensated valve
US3435839A (en) * 1965-05-21 1969-04-01 Elder Oxygen Co Inc Backflow bypassing valve for breathing apparatus
US3739801A (en) * 1971-12-06 1973-06-19 Rudolph H Low actuating pressure type valve structure
US3978878A (en) * 1975-09-18 1976-09-07 Hans Rudolph Resilient supply and exhaust valve

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3712390A1 (en) * 1987-04-11 1988-10-27 Obermayer Anton Valve
DE10050443A1 (en) * 2000-10-12 2002-04-25 Weinmann G Geraete Med Varying breathing apparatus flow cross-section involves reducing effective cross-section for increasing expiration breathing pressure, increasing for reducing expiration pressure
EP1275412A2 (en) * 2001-06-27 2003-01-15 Fisher & Paykel Healthcare Limited Nasal breathing mask
EP1275412A3 (en) * 2001-06-27 2004-04-14 Fisher & Paykel Healthcare Limited Nasal breathing mask
US6923181B2 (en) 2001-06-27 2005-08-02 Fisher & Paykel Healthcare Limited Nasal mask
US10821258B2 (en) * 2005-08-15 2020-11-03 ResMed Pty Ltd Compliant coupler or adaptor
US11420006B2 (en) 2005-08-15 2022-08-23 ResMed Pty Ltd Humidifier and/or flow generator for CPAP device
US20150231358A1 (en) * 2005-08-15 2015-08-20 Resmed Limited Humidifier and/or flow generator for cpap device
US20230338693A1 (en) * 2005-08-15 2023-10-26 ResMed Pty Ltd Humidifier and/or flow generator for cpap device
US20160317775A1 (en) * 2005-08-15 2016-11-03 Resmed Limited Compliant coupler or adaptor
US9895509B2 (en) * 2005-08-15 2018-02-20 Resmed Limited Compliant coupler or adaptor
US20180126109A1 (en) * 2005-08-15 2018-05-10 Resmed Limited Compliant coupler or adaptor
US11724059B2 (en) 2005-08-15 2023-08-15 ResMed Pty Ltd Humidifier and/or flow generator for CPAP device
US10124143B2 (en) * 2005-08-15 2018-11-13 Resmed Limited Humidifier and/or flow generator for CPAP device
US11135394B2 (en) 2005-08-15 2021-10-05 ResMed Pty Ltd Humidifier and/or flow generator for CPAP device
US20210008323A1 (en) * 2005-08-15 2021-01-14 ResMed Pty Ltd Compliant coupler or adaptor
WO2008114079A1 (en) * 2007-03-21 2008-09-25 Resmed Paris Passive gas regulating valve for a respiratory system
JP2010522007A (en) * 2007-03-21 2010-07-01 レスメド パリ Gas control valves used in ventilators
US9981093B2 (en) 2007-03-21 2018-05-29 Resmed Paris Sas Passive gas regulating valve for a respiratory system
US9144653B2 (en) 2007-03-21 2015-09-29 Resmed Paris Sas Passive gas regulating valve for a respiratory system
US10589042B2 (en) 2011-11-11 2020-03-17 ResMed Pty Ltd Exchanger assembly for respiratory treatment
US11957835B2 (en) 2011-11-11 2024-04-16 ResMed Pty Ltd Exchanger assembly for respiratory treatment
WO2023170342A1 (en) * 2022-03-10 2023-09-14 Planmeca Oy Ventilator with breathing valve assembly

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