FR2738341A1 - Breathalyser for detecting alcohol level - Google Patents

Breathalyser for detecting alcohol level Download PDF

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Publication number
FR2738341A1
FR2738341A1 FR9510322A FR9510322A FR2738341A1 FR 2738341 A1 FR2738341 A1 FR 2738341A1 FR 9510322 A FR9510322 A FR 9510322A FR 9510322 A FR9510322 A FR 9510322A FR 2738341 A1 FR2738341 A1 FR 2738341A1
Authority
FR
France
Prior art keywords
end piece
tube
valve
check valve
test tube
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.)
Granted
Application number
FR9510322A
Other languages
French (fr)
Other versions
FR2738341B1 (en
Inventor
Jean Francois Boudinot
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.)
Contralco SAS
Original Assignee
Contralco SAS
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 Contralco SAS filed Critical Contralco SAS
Priority to FR9510322A priority Critical patent/FR2738341B1/en
Publication of FR2738341A1 publication Critical patent/FR2738341A1/en
Application granted granted Critical
Publication of FR2738341B1 publication Critical patent/FR2738341B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/497—Physical analysis of biological material of gaseous biological material, e.g. breath
    • G01N33/4972—Determining alcohol content
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
    • G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/98—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving alcohol, e.g. ethanol in breath

Abstract

The breathalyser has an outlet piece (1) which is fixed to an inflatable bag (2) in an airtight manner. The outlet (1) consists of a plastic cylindrical tube within which a valve (3) may slide longitudinally and is retained by flanges and shoulders (5,6). A separate testing tube (7) contains material (8) which reacts to alcohol. The material is housed between perforated internal walls (9) (10) one of which has a spike (11). The dimensions of the testing tube are such that it may be engaged with the outlet piece (1) with the spike (11) holding the valve (3) open.

Description

Pour contrôler le taux d'alcoolémie, on fait traverser un tube contenant une masse réactive perméable par un certain volume d'air exhalé par un être humain.To control the blood alcohol level, a tube containing a permeable reactive mass is passed through a certain volume of air exhaled by a human being.

Jusqu'à présent, ce volume est déterminé par un ballon ou poche placé en aval du tube. Mais la masse réactive à travers laquelle l'air est soufflé a une faible perméabilité, ce qui entraîne une certaine difficulté d'exhalation; la précision de lecture de la réaction colorimétrique engendrée par la présence d'alcool est d'autant plus grande que la perméabilité de la masse réactive est plus faible; la difficulté d'exhalation croît donc avec la précision du contrôle.So far, this volume is determined by a balloon or pocket placed downstream of the tube. But the reactive mass through which the air is blown has a low permeability, which causes a certain difficulty of exhalation; the reading accuracy of the colorimetric reaction generated by the presence of alcohol is all the greater the lower the permeability of the reactive mass; the difficulty of exhalation therefore increases with the precision of the control.

La présente invention a pour objet un dispositif de contrôle du taux d'alcoolémie qui remédie à ces problèmes.The present invention relates to a device for controlling the blood alcohol level which overcomes these problems.

Ce dispositif de contrôle est caractérisé en ce qu'il comprend
- un embout qui est relié à une poche gonflable
et dans lequel est monté coulissant un clapet de
retenue;
- un tube d'essai indépendant contenant une
masse réactive, peut être assemblé à l'embout et
comporte un élément en saillie propre à
repousser le clapet de retenue lorsque l'embout
et le tube d'essai sont assemblés l'un dans 1' autre. This control device is characterized in that it comprises
- a mouthpiece which is connected to an inflatable pocket
and in which is slidably mounted a valve
detention;
- an independent test tube containing a
reactive mass, can be assembled with the tip and
has a projecting element specific to
push back the check valve when the nozzle
and the test tube are assembled into one another.

Pour procéder à un contrôle d'alcoolémie, on fait souffler dans la poche jusqu'à ce qu'elle soit gonflée; cette opération se fait sans difficulté puisque l'embout débouche directement dans la poche. En fin d'opération, le clapet de retenue s'applique sur son siège sous l'effet de la pression de l'air remplissant la poche de sorte que cette dernière reste gonflée. Il suffit alors d'assembler l'embout à un tube d'essai. L'élément en saillie de ce tube repousse le clapet de sorte que l'air qu'il contient peut être chassé au travers de la masse réactive. La perméabilité de cette masse réactive peut, sans inconvénient, être relativement faible, ce qui permet une lecture précise.To carry out a blood alcohol control, blow into the pocket until it is inflated; this is done without difficulty since the tip opens directly into the pocket. At the end of the operation, the check valve is applied to its seat under the effect of the air pressure filling the pocket so that the latter remains inflated. It then suffices to assemble the endpiece to a test tube. The protruding element of this tube pushes the valve so that the air it contains can be expelled through the reactive mass. The permeability of this reactive mass can, without disadvantage, be relatively low, which allows an accurate reading.

En cas d'incertitude sur le taux d'alcoolémie, on peut faire souffler dans une deuxième poche et conserver l'air qu'elle contient pour l'analyser avec un appareil de contrôle précis, par exemple électronique.In case of uncertainty about the blood alcohol level, you can blow in a second pocket and keep the air it contains to analyze it with a precise control device, for example electronic.

On a décrit ci-après, à titre d'exemple non limitatif, un mode de réalisation du dispositif selon l'invention, avec référence au dessin annexé dans lequel
La Figure 1 est une vue en coupe de l'ensemble
du dispositif,l'embout n'étant pas assemblé à
un tube à essais. An embodiment of the device according to the invention has been described below, by way of non-limiting example, with reference to the appended drawing in which
Figure 1 is a sectional view of the assembly
of the device, the end piece not being assembled at
a test tube.

La Figure 2 est une vue en coupe de l'embout
suivant II-II de la Figure 1.Figure 2 is a sectional view of the nozzle
according to II-II of Figure 1.

La Figure 3 est une vue en coupe de l'embout,
après gonflage de la poche.FIG. 3 is a sectional view of the end piece,
after inflating the pocket.

La Figure 4 est une vue en coupe de l'embout
assemblé à un tube à essais.Figure 4 is a sectional view of the nozzle
assembled to a test tube.

Tel qu'il est représenté au dessin, le dispositif selon l'invention comprend un embout 1 qui traverse la paroi un embout 1 qui traverse la paroi d'une poche étanche gonflable 2 et lui est fixé de manière étanche. Cet embout 1 est constitué par un tube cylindrique, en matière plastique, dont l'extrémité extérieure est taillée en biseau, comme indiqué en la, dans lequel peut coulisser un clapet 3; ce tube comporte, dans sa portion extérieure, un épaulement 4 propre à former siège pour une portion tronconique 3a du clapet et, dans sa portion opposée, des nervures 5 légèrement en pente et dont les extrémités 6 s'inscrivent dans un diamètre inférieur à celui du clapet propre à empêcher celui-ci de sortir du tube.un épaulement 5 propre à empêcher celui-ci de sortir du tube.As shown in the drawing, the device according to the invention comprises a nozzle 1 which passes through the wall an nozzle 1 which passes through the wall of an inflatable sealed bag 2 and is fixed thereto in a sealed manner. This tip 1 is constituted by a cylindrical tube, made of plastic, the outer end of which is cut in a bevel, as indicated in la, in which a valve 3 can slide; this tube comprises, in its outer portion, a shoulder 4 suitable for forming a seat for a frustoconical portion 3a of the valve and, in its opposite portion, ribs 5 slightly sloping and whose ends 6 are inscribed in a diameter less than that a valve capable of preventing the latter from leaving the tube. a shoulder 5 suitable for preventing the latter from leaving the tube.

Le dispositif comprend, par ailleurs, un tube d'essai 7, qui est ouvert à ses deux extrémités, dont le diamètre intérieur est sensiblement égal au diamètre extérieur de l'embout 1 et qui contient un réactif 8 emprisonné entre deux cloisons ajourées 9 et 10, l'une des cloisons comporte en son centre un picot central 11; un repère 7a est formé sur la paroi du tube 7 entre les deux cloisons 9 et 10. Ce tube d'essai 7 est initialement contenu dans un tube 12 fermé par une membrane d'étanchéité thermoscellée et déchirable 13 qui, en outre, maintient le tube d'essai 7 dans le tube 12. The device also comprises a test tube 7, which is open at its two ends, the inside diameter of which is substantially equal to the outside diameter of the tip 1 and which contains a reagent 8 trapped between two perforated partitions 9 and 10, one of the partitions has at its center a central pin 11; a mark 7a is formed on the wall of the tube 7 between the two partitions 9 and 10. This test tube 7 is initially contained in a tube 12 closed by a heat-sealed and tearable sealing membrane 13 which, in addition, maintains the test tube 7 in tube 12.

Pour utiliser ce dispositif, par exemple comme éthylotest, on donne le ballon 2 au conducteur et on lui fait souffler dans le ballon par l'embout 1. Quand le ballon est plein, la pression de l'air qu'il contient applique le clapet 3 sur son siège 4 (Figure 3) et ce dernier retient ainsi l'air dans le ballon.To use this device, for example as a breathalyzer, the driver is given balloon 2 and made to blow into the balloon by the nozzle 1. When the balloon is full, the pressure of the air which it contains applies the valve. 3 on its seat 4 (Figure 3) and the latter thus retains the air in the balloon.

On déchire par perforation la membrane 13 avec l'extrémité biseautée la de l'embout 1 et on insère cet embout dans le tube 7. Le picot 11 vient alors rencontrer le clapet 3 et le repousse (Figure 4) de sorte que l'air du ballon peut passer dans le tube d'essai 7, l'étanchéité vis-à-vis de l'extérieur étant assurée par la déformation élastique de l'embout 1. On dégonfle le ballon lentement et complètement et on examine si le changement de coloration, qui est proportionnel à la quantité d'alcool expirée, dépasse le repère 7a.The membrane 13 is punctured by tearing with the beveled end 1a of the end piece 1 and this end piece is inserted into the tube 7. The pin 11 then comes to meet the valve 3 and repels it (Figure 4) so that the air of the balloon can pass into the test tube 7, the seal against the outside being ensured by the elastic deformation of the end piece 1. The balloon is deflated slowly and completely and it is examined whether the change in coloring, which is proportional to the amount of alcohol exhaled, exceeds the mark 7a.

Il va de soi que la présente invention ne doit pas être considérée comme limitée au mode de réalisation décrit et représenté, mais en couvre, au contraire, toutes les variantes. It goes without saying that the present invention should not be considered as limited to the embodiment described and shown, but on the contrary covers all variants thereof.

Claims (7)

RevendicationsClaims 1. Dispositif de prélèvement pour le contrôle du taux d'alcoolémie, caractérisé en ce qu'il comprend : - un embout (1)qui est relié à une poche gonflable (2) et dans lequel est monté coulissant un clapet de retenue (3); - un tube d'essai (7) indépendant qui contient une masse réactive (8), peut être assemblé à l'embout (1) et comporte un élément en saillie (11) propre à repousser le clapet de retenue (3) lorsque l'embout (1) et le tube d'essai (7) sont assemblés l'un dans l'autre.1. Sampling device for controlling the blood alcohol level, characterized in that it comprises: - a nozzle (1) which is connected to an inflatable pocket (2) and in which a check valve (3) is slidably mounted ); - an independent test tube (7) which contains a reactive mass (8), can be assembled to the end piece (1) and has a protruding element (11) suitable for pushing back the check valve (3) when the 'end piece (1) and the test tube (7) are assembled one inside the other. 2. Dispositif selon la revendication 1, caractérisé en ce que le diamètre intérieur du tube (7) est sensiblement égal au diamètre extérieur de l'embout (1) de sorte que l'embout peut être emmanché dans le tube en assurant une liaison pratiquement étanche.2. Device according to claim 1, characterized in that the internal diameter of the tube (7) is substantially equal to the external diameter of the end piece (1) so that the end piece can be fitted into the tube while ensuring a connection practically waterproof. 3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que l'élément en saillie (11) est constitué par un picot central.3. Device according to claim 1 or 2, characterized in that the projecting element (11) is constituted by a central pin. 4. Dispositif selon la revendication 3, caractérisé en ce que la masse réactive (8) est emprisonnée entre deux cloisons ajourées (9 et 10) dont l'une porte le picot (11).4. Device according to claim 3, characterized in that the reactive mass (8) is trapped between two perforated partitions (9 and 10), one of which carries the pin (11). 5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que l'embout (1) comprend un épaulement interne (4) qui forme siège pour le clapet (3) et des nervures (5) qui empêchent sa sortie de l'embout. 5. Device according to one of claims 1 to 4, characterized in that the end piece (1) comprises an internal shoulder (4) which forms a seat for the valve (3) and ribs (5) which prevent its exit from the mouthpiece. 6. Dispositif selon l'une quelconques des revendications précédentes, caractérisé en ce que l'extrémité extérieure de l'embout (1) est taillée en biseau (la). 6. Device according to any one of the preceding claims, characterized in that the outer end of the end piece (1) is cut in a bevel (la). 7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la poche gonflable (2) équipée de l'embout (1) et du clapet de retenue (3) peut être reliée à un appareil d'analyse de gaz de type électronique. 7. Device according to any one of the preceding claims, characterized in that the inflatable bag (2) equipped with the end piece (1) and the check valve (3) can be connected to a gas analysis apparatus. electronic type.
FR9510322A 1995-08-29 1995-08-29 SAMPLING DEVICE FOR CONTROLLING THE ALCOHOLIC RATE Expired - Fee Related FR2738341B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9510322A FR2738341B1 (en) 1995-08-29 1995-08-29 SAMPLING DEVICE FOR CONTROLLING THE ALCOHOLIC RATE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9510322A FR2738341B1 (en) 1995-08-29 1995-08-29 SAMPLING DEVICE FOR CONTROLLING THE ALCOHOLIC RATE

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Publication Number Publication Date
FR2738341A1 true FR2738341A1 (en) 1997-03-07
FR2738341B1 FR2738341B1 (en) 1997-10-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012123653A1 (en) 2011-03-16 2012-09-20 Societe Contralco S.A.S. Alcohol-detecting chemical breath analyzer combining a test tube and an inflatable bag
CN103033507A (en) * 2012-12-17 2013-04-10 郑州炜盛电子科技有限公司 Expiratory alcohol concentration test device for human body

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1942337U (en) * 1966-04-19 1966-07-14 Hans Pries DEVICE FOR DETERMINING THE ALCOHOL CONTENT IN HUMAN EXHAUST AIR.
BE676900A (en) * 1965-02-24 1966-07-18
EP0127259A1 (en) * 1983-05-23 1984-12-05 Drägerwerk Aktiengesellschaft Throw-away breath sample device
US4492673A (en) * 1983-09-02 1985-01-08 Sobryco, Inc. Disposable sobriety tester
EP0133326A2 (en) * 1983-06-27 1985-02-20 Diversified Medical Technologies, Inc. Disposable breath analyzer
EP0480177A2 (en) * 1990-10-12 1992-04-15 Wayne Lamont Breath alcohol tester
FR2681694A1 (en) * 1991-09-24 1993-03-26 Ponsy Jacques Sarl Contralco Device for determination of gases

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE676900A (en) * 1965-02-24 1966-07-18
DE1942337U (en) * 1966-04-19 1966-07-14 Hans Pries DEVICE FOR DETERMINING THE ALCOHOL CONTENT IN HUMAN EXHAUST AIR.
EP0127259A1 (en) * 1983-05-23 1984-12-05 Drägerwerk Aktiengesellschaft Throw-away breath sample device
EP0133326A2 (en) * 1983-06-27 1985-02-20 Diversified Medical Technologies, Inc. Disposable breath analyzer
US4492673A (en) * 1983-09-02 1985-01-08 Sobryco, Inc. Disposable sobriety tester
EP0480177A2 (en) * 1990-10-12 1992-04-15 Wayne Lamont Breath alcohol tester
FR2681694A1 (en) * 1991-09-24 1993-03-26 Ponsy Jacques Sarl Contralco Device for determination of gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012123653A1 (en) 2011-03-16 2012-09-20 Societe Contralco S.A.S. Alcohol-detecting chemical breath analyzer combining a test tube and an inflatable bag
FR2972804A1 (en) * 2011-03-16 2012-09-21 Contralco Sas Soc Chemical analysis device for chemical analysis of breath of user for detecting presence of alcohol in breath, has cap with lateral wall axially fitted at end of test tube, and shoulder bearing axially against valve that closes thrust member
CN103033507A (en) * 2012-12-17 2013-04-10 郑州炜盛电子科技有限公司 Expiratory alcohol concentration test device for human body

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Publication number Publication date
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