EP1065432A1 - Portable device for acquisition of oxygen autonomy - Google Patents

Portable device for acquisition of oxygen autonomy Download PDF

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Publication number
EP1065432A1
EP1065432A1 EP00401848A EP00401848A EP1065432A1 EP 1065432 A1 EP1065432 A1 EP 1065432A1 EP 00401848 A EP00401848 A EP 00401848A EP 00401848 A EP00401848 A EP 00401848A EP 1065432 A1 EP1065432 A1 EP 1065432A1
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EP
European Patent Office
Prior art keywords
support
cursor
oxygen
bottle
autonomy
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
EP00401848A
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German (de)
French (fr)
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EP1065432B1 (en
Inventor
René Conin
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.)
Lambert Yves
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Lambert Yves
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Publication of EP1065432A1 publication Critical patent/EP1065432A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0426—Volume
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0443—Flow or movement of content
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0486—Indicating or measuring characterised by the location
    • F17C2250/0495—Indicating or measuring characterised by the location the indicated parameter is a converted measured parameter

Definitions

  • the present invention relates to a device portable acquisition of an autonomy value of a oxygen tank.
  • the invention can be applied to the medical field and especially in the case of transporting a patient on oxygen therapy.
  • the exact and certain knowledge of autonomy oxygen is essential.
  • oxygen autonomy is directly related to the volume of gas remaining in the bottle and at the desired flow rate. This flow can be imposed by patient therapy, or defined by some criteria independent of this invention.
  • all oxygen cylinders commonly used by rescuers, nurses, or others include a pressure gauge connected to the upper chamber pressure of the holder which indicates at all times the internal pressure P in bars.
  • An adjustment screw R allows to fix and / or modulate the flow rate at the outlet of the bottle.
  • This flow D can be monitored at any time by the flow meter sandwiched between the high pressure chamber HP and breathing apparatus.
  • This formula is simple and it constitutes usually a question of the habilitation exam firefighters, paramedics and other users of oxygen cylinders for therapeutic purposes.
  • the present invention provides a simple device, functional and portable to get quickly and directly the oxygen autonomy from the pressure indicated on the pressure gauge and oxygen flow imposed by the desired application.
  • the invention relates more particularly to a portable value acquisition device of autonomy of oxygen contained in a bottle, the external pressure being constant, characterized in that the device comprises a support carrying at least a table of values addressed by a cursor in function of the internal pressure P of the bottle and with a fixed flow D, and a reading window indicating directly the oxygen autonomy value of the cylinder for this internal pressure P and this flow D given, and in that said device is independent from the bottle.
  • the support is a material support
  • the cursor being a movable cursor moving on the support
  • the reading window being attached to the cursor
  • the support has a front and back, each side being respectively provided with a table of values for capacities of different bottle.
  • the front of the support has a table of oxygen autonomy values for a bottle with a capacity of one cubic meter
  • the back presents a table of oxygen autonomy values for a bottle with a capacity of three cubic meters.
  • the support has a rectangular strip shape
  • the cursor is moving longitudinally between two stops.
  • the stops are suitable for receive a distinctive sign and / or information.
  • the support has a disc shape, the cursor moving around the disc.
  • the support is composed of a material chosen from paper, cardboard, glass, plastic.
  • the support is an electronic storage medium, the cursor being controlled by a support addressing program of memorization by content, the value of autonomy of oxygen being displayed digitally in the window of reading.
  • the storage medium includes a plurality of value tables corresponding respectively to capacities of different bottles.
  • the support of storage includes a plurality of value tables corresponding respectively to security reserves different.
  • the internal pressure P data is read on a pressure gauge placed on the oxygen tank.
  • the flow rate D fixed by the user, determines the position of the cursor on the support.
  • the invention provides a simple and effective solution to the problem of fast and precise calculation of autonomy oxygen from a bottle intended for oxygen therapy, or any other application.
  • the device according to the invention makes it possible to reduce the risks of calculation errors by proposing the result by direct reading in a table at using a cursor.
  • the device of the invention also allows anticipate a possible change of bottle.
  • the new autonomy time would be directly known by a simple movement of the cursor on the table.
  • the device according to the invention has the advantage of being easily transportable. He can effect be slipped into the pocket of pants, a blouse or dungarees.
  • a support 1 as a disk with a moving cursor circularly and pointing a value of a radius of the disk.
  • the support 1 can be made of a material chosen from paper, cardboard, glass, plastic.
  • the device according to the invention comprises a support 1 of rectangular shape whose dimensions are less than or equal to 20 cm in length and 6 cm in large.
  • the reading strip can thus be easily slipped into the pocket of a user's garment, such as pants or a blouse, in order to always be at hand.
  • the support 1 has a front 5 and a back 6 to allow the realization of two reading tables on a single strip.
  • each face 5 and 6 of the support 1 comprises a table of values corresponding respectively to oxygen autonomy values as a function of the pressure P remaining in the bottle and of the flow rate D for two different bottle capacities.
  • the front presents a table of values for a 1m 3 bottle, or 5 liters
  • the back presents the same table for a 3 m 3 oxygen bottle, or 15 liters.
  • a cursor 2 provided with a reading window 3 is able to move along the support 1 between two stops 4.
  • the cursor 2 has two columns, a first column on which the different values of pressure P remaining in the bottle, and a second column consisting of a reading window 3.
  • the user To know the oxygen autonomy, the user must first read the pressure indicated on the bottle pressure gauge. He must then decide and / or apply an oxygen flow D at the outlet of the bottle, then it addresses cursor 2 on the table hardware support values 1.
  • the user therefore places the window 3 of the cursor 2 on the flow rate column D previously determined, then it finds, on cursor 2, the line corresponding to the oxygen pressure P indicated by the pressure gauge, and can read directly, on the same line and in the window 3 column the remaining oxygen time.
  • the autonomy times indicated in the tables can advantageously take into account the margin of 10% security cut off from theoretical time.
  • the device according to the invention thus allows a direct and fast reading which eliminates all risk of error related to a bad calculation.
  • the new autonomy would quickly be known by simply moving cursor 2 to place the window 3 in the column corresponding to the new flow D.
  • the stops 4 frame the support 1. They on the one hand, keep cursor 2 on the support 1 of the strip, and on the other hand they can advantageously serve as a support for information various such as instructions or identifiers.
  • the autonomy value tables are rendered more readable by color codes to identify some crucial values. It is thus possible anticipate a change of bottle, for example.
  • the acquisition device of an oxygen autonomy value can be constituted by an electronic device.
  • the support 1 is a storage medium composed of at least one integrated circuit chip.
  • the electronic support 1 comprises at least one table of values corresponding to a given capacity of oxygen cylinder, for example 1 m 3 , and to a given safety reserve, for example 10%.
  • the electronic support 1 can advantageously include a plurality of tables values corresponding to a plurality of capacities of bottle with a plurality of safety reserves respective.
  • the device according to the invention can then present the general form of a calculator electronic with a reading window 3 and control buttons 10.
  • the control keys 10 make it possible to carry out addressing of the storage medium 1 by the content by positioning a reading cursor 2 on the memory box corresponding to the value sought.
  • the reading cursor 2 is then constituted by a content addressing device for a memory, as is known in electronics.
  • a control key 11 can make it possible to select the bottle capacity used, then two other keys 12, 13 are used to indicate, at through a keyboard numbered 14, the respective values pressure P of the bottle and desired flow rate D.
  • control key 15 can allow to select security reserve desired, from 10% to 30% depending on the applications.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The device does not depend on a connection to the cylinder, but provides a calculated value for the quantity of gas remaining on the basis of measured parameters. The portable device provides an independent indication of the amount of oxygen remaining in a gas cylinder, whilst the external pressure is constant. It comprises a support (1) carrying at least one table of values, addressed by a cursor as a function of the pressure within the gas cylinder, and a fixed flow rate. A display window (3) shows directly the quantity of oxygen remaining within the cylinder as a function of these two values. The device may operate by use of a slide-rule type device whereby the cursor points to specific figures within a table. Alternatively the device may be an electronic processor with a memory, in which case the pressure and flow rate parameters may be entered via a keypad, and the resulting quantity of oxygen displayed on an electronic display panel.

Description

La présente invention concerne un dispositif portable d'acquisition d'une valeur d'autonomie d'une bouteille d'oxygène.The present invention relates to a device portable acquisition of an autonomy value of a oxygen tank.

L'invention peut s'appliquer au domaine médical et tout particulièrement dans le cas d'un transport d'un patient sous oxygénothérapie. Dans un tel contexte, la connaissance exacte et certaine de l'autonomie d'oxygène est primordiale.The invention can be applied to the medical field and especially in the case of transporting a patient on oxygen therapy. In such a context, the exact and certain knowledge of autonomy oxygen is essential.

Il existe déjà de nombreux dispositifs d'acquisition d'une valeur d'autonomie d'oxygène, en particulier dans le domaine de la plongée sous-marine, mais les contraintes sont alors différentes du fait que la pression de gaz restant dans la bouteille varie en fonction de la profondeur.There are already many devices acquisition of an oxygen autonomy value, in particularly in the area of scuba diving, but the constraints are then different from the fact that the gas pressure remaining in the cylinder varies in depending on the depth.

Dans le cas d'une application à pression atmosphérique constante; l'autonomie d'oxygène est directement liée au volume de gaz restant dans la bouteille et au débit souhaité. Ce débit peut être imposé par la thérapie du patient, ou définie selon certains critères indépendants de la présente invention.In the case of a pressure application constant atmospheric; oxygen autonomy is directly related to the volume of gas remaining in the bottle and at the desired flow rate. This flow can be imposed by patient therapy, or defined by some criteria independent of this invention.

Une formule, connue des utilisateurs de bouteilles d'oxygène, relie ces différentes variables.A formula known to bottle users of oxygen, connects these different variables.

Cette formule s'appuie sur la loi de Boyle Mariotte qui stipule que le produit « pression » par « volume » d'un gaz reste constant à température constante. Ainsi, le volume d'un gaz comprimé dans une bouteille varie de façon inversement proportionnel à la pression. Cette loi est vérifiée pour une pression extérieure constante. This formula is based on Boyle Mariotte's law which states that the product "pressure" by "volume" of a gas remains constant at constant temperature. So, the volume of a compressed gas in a bottle varies from inversely proportional to the pressure. This law is checked for external pressure constant.

Comme illustré sur la figure 1, toutes les bouteilles d'oxygène généralement utilisées par les secouristes, infirmiers, ou autres personnes, comprennent un manomètre branché sur la chambre haute pression HP du détenteur qui indique à tout moment la pression intérieure P en bars.As illustrated in Figure 1, all oxygen cylinders commonly used by rescuers, nurses, or others, include a pressure gauge connected to the upper chamber pressure of the holder which indicates at all times the internal pressure P in bars.

Une vis de réglage R permet de fixer et/ou de moduler le débit en sortie de la bouteille. Ce débit D peut être surveillé à tout moment par le débitmètre intercalé entre la chambre haute pression HP et l'appareillage de respiration.An adjustment screw R allows to fix and / or modulate the flow rate at the outlet of the bottle. This flow D can be monitored at any time by the flow meter sandwiched between the high pressure chamber HP and breathing apparatus.

Lorsque l'on connaít la pression restante P, on peut directement en déduire le volume restant V en posant P x V = constante.When we know the remaining pressure P, we can directly deduce the remaining volume V from it setting P x V = constant.

La formule reliant le contenu C de la bouteille en litre V au débit imposé D pour donner le temps d'autonomie T s'écrit comme suit : C/D = T The formula linking the content C of the bottle in liters V to the imposed flow D to give the autonomy time T is written as follows: C / D = T

Les secouristes, infirmiers ou autres, utilisent généralement des bouteilles d'oxygène comprimé normalisées à 1m3 ou à 3m3 correspondant respectivement à un volume de 5 ou 15 litres.Rescuers, nurses or others, generally use compressed oxygen cylinders standardized to 1m 3 or 3m 3 corresponding respectively to a volume of 5 or 15 liters.

Par exemple, pour une bouteille de 5 litres, si la pression au manomètre indique 100 bars, on aura alors 500 litres d'oxygène disponibles.For example, for a 5 liter bottle, if the pressure on the pressure gauge indicates 100 bars, we will then have 500 liters of oxygen available.

Si le débit imposé est de 5 l/min, on disposera de 100 minutes d'autonomie.If the imposed flow rate is 5 l / min, we will have 100 minutes of autonomy.

La sécurité impose une réserve qui peut être fixée à 10% du besoin théorique, ce qui nous amène à une autonomie de 90 minutes, soit 1h30. La valeur de 10% est imposée aujourd'hui par le ministère de l'intérieur, mais d'autres écoles de formation préconisent une réserve pouvant atteindre 30% de la valeur théorique en autonomie. Security imposes a reserve which can be fixed to 10% of the theoretical need, which brings us to a autonomy of 90 minutes, or 1h30. The value of 10% is imposed today by the Department of inside but other training schools recommend a reserve of up to 30% of the theoretical value in autonomy.

Cette formule est simple et elle constitue généralement une question de l'examen d'habilitation des pompiers, ambulanciers et autres utilisateurs de bouteilles d'oxygène à des fins thérapeutiques.This formula is simple and it constitutes usually a question of the habilitation exam firefighters, paramedics and other users of oxygen cylinders for therapeutic purposes.

Néanmoins, dans l'urgence de certaines situations, cette formule simple est quelque fois oubliée ou mal appliquée ce qui peut entraíner de graves conséquences.However, in the urgency of certain situations, this simple formula is sometimes forgotten or badly applied which can lead to serious consequences.

La présente invention propose un dispositif simple, fonctionnel et portable pour obtenir rapidement et directement l'autonomie d'oxygène à partir de la pression indiquée au manomètre et du débit d'oxygène imposé par l'application souhaitée.The present invention provides a simple device, functional and portable to get quickly and directly the oxygen autonomy from the pressure indicated on the pressure gauge and oxygen flow imposed by the desired application.

L'invention concerne plus particulièrement un dispositif portable d'acquisition d'une valeur d'autonomie d'oxygène contenu dans une bouteille, la pression extérieure étant constante, caractérisé en ce que le dispositif comprend un support portant au moins une table de valeurs adressée par un curseur en fonction de la pression intérieure P de la bouteille et d'un débit D fixé, et une fenêtre de lecture indiquant directement la valeur d'autonomie d'oxygène de la bouteille pour cette pression intérieure P et ce débit D donnés, et en ce que ledit dispositif est indépendant de la bouteille.The invention relates more particularly to a portable value acquisition device of autonomy of oxygen contained in a bottle, the external pressure being constant, characterized in that the device comprises a support carrying at least a table of values addressed by a cursor in function of the internal pressure P of the bottle and with a fixed flow D, and a reading window indicating directly the oxygen autonomy value of the cylinder for this internal pressure P and this flow D given, and in that said device is independent from the bottle.

Selon une caractéristique, le support est un support matériel, le curseur étant un curseur mobile se déplaçant sur le support, la fenêtre de lecture étant solidaire du curseur.According to one characteristic, the support is a material support, the cursor being a movable cursor moving on the support, the reading window being attached to the cursor.

Selon une caractéristique, le support présente un recto et un verso, chaque face étant respectivement munie d'une table de valeurs pour des capacités de bouteille différentes. According to one characteristic, the support has a front and back, each side being respectively provided with a table of values for capacities of different bottle.

Selon une application, le recto du support présente une table de valeurs d'autonomie d'oxygène pour une bouteille d'une capacité d'un mètre cube, et le verso présente une table de valeurs d'autonomie d'oxygène pour une bouteille d'une capacité de trois mètres cube.According to one application, the front of the support has a table of oxygen autonomy values for a bottle with a capacity of one cubic meter, and the back presents a table of oxygen autonomy values for a bottle with a capacity of three cubic meters.

Selon une caractéristique, certaines valeurs cruciales des tables sont repérées par un code de couleurs.According to a characteristic, certain values crucial tables are identified by a code of colors.

Selon un mode de réalisation, le support présente une forme rectangulaire de réglette, le curseur se déplaçant longitudinalement entre deux butées.According to one embodiment, the support has a rectangular strip shape, the cursor is moving longitudinally between two stops.

Selon une particularité, les butées sont aptes à recevoir un signe distinctif et/ou des informations.According to one feature, the stops are suitable for receive a distinctive sign and / or information.

Selon un autre mode de réalisation, le support présente une forme de disque, le curseur se déplaçant autour du disque.According to another embodiment, the support has a disc shape, the cursor moving around the disc.

Selon les variantes de réalisation, le support est composé d'un matériau choisi parmi du papier, du carton, du verre, du plastique.According to the variant embodiments, the support is composed of a material chosen from paper, cardboard, glass, plastic.

Selon un autre mode de réalisation, le support est un support de mémorisation électronique, le curseur étant commandé par un programme d'adressage du support de mémorisation par le contenu, la valeur d'autonomie d'oxygène étant affichée numériquement dans la fenêtre de lecture.According to another embodiment, the support is an electronic storage medium, the cursor being controlled by a support addressing program of memorization by content, the value of autonomy of oxygen being displayed digitally in the window of reading.

Selon une particularité, le support de mémorisation comporte une pluralité de tables de valeur correspondant respectivement à des capacités de bouteilles différentes.According to a particular feature, the storage medium includes a plurality of value tables corresponding respectively to capacities of different bottles.

Selon une autre particularité, le support de mémorisation comporte une pluralité de tables de valeur correspondant respectivement à des réserves de sécurité différentes. According to another particularity, the support of storage includes a plurality of value tables corresponding respectively to security reserves different.

Selon une caractéristique, la pression intérieure P donnée est lue sur un manomètre disposé sur la bouteille d'oxygène.According to one characteristic, the internal pressure P data is read on a pressure gauge placed on the oxygen tank.

Selon une autre caractéristique, le débit D, fixé par l'utilisateur, détermine la position du curseur sur le support.According to another characteristic, the flow rate D, fixed by the user, determines the position of the cursor on the support.

L'invention apporte une solution simple et efficace au problème du calcul rapide et précis de l'autonomie d'oxygène d'une bouteille destinée à l'oxygénothérapie, ou à toute autre application.The invention provides a simple and effective solution to the problem of fast and precise calculation of autonomy oxygen from a bottle intended for oxygen therapy, or any other application.

Le dispositif selon l'invention permet de réduire les risques d'erreurs de calcul en proposant le résultat par une lecture directe dans une table à l'aide d'un curseur.The device according to the invention makes it possible to reduce the risks of calculation errors by proposing the result by direct reading in a table at using a cursor.

Le dispositif de l'invention permet en outre d'anticiper un éventuel changement de bouteille.The device of the invention also allows anticipate a possible change of bottle.

Dans le cas où le débit serait modifié par l'utilisateur, le nouveau temps d'autonomie serait directement connu par un simple déplacement du curseur sur la table.In the event that the flow is changed by the user, the new autonomy time would be directly known by a simple movement of the cursor on the table.

De plus le dispositif selon l'invention présente l'avantage d'être aisément transportable. Il peut en effet être glissé dans la poche d'un pantalon, d'une blouse ou d'une salopette.In addition, the device according to the invention has the advantage of being easily transportable. He can effect be slipped into the pocket of pants, a blouse or dungarees.

D'autres particularités et avantages de l'invention apparaítront à la lecture de la description qui suit donnée à titre d'exemple illustratif et non limitatif est faite en référence aux figures annexées pour lesquelles :

  • La figure 1, déjà décrite, illustre schématiquement le détenteur d'une bouteille d'oxygène ;
  • Les figures 2a et 2b illustrent respectivement le recto et le verso du dispositif de lecture de tables selon le premier mode de réalisation de l'invention ;
  • figures 3a et 3b illustrent respectivement les deux cotés du curseurs s'adaptant sur les deux faces du dispositif de la figure 2 ;
  • la figure 4 est un schéma du dispositif selon le deuxième mode de réalisation de l'invention.
Other features and advantages of the invention will appear on reading the following description given by way of illustrative and nonlimiting example is made with reference to the appended figures for which:
  • Figure 1, already described, schematically illustrates the holder of an oxygen cylinder;
  • Figures 2a and 2b respectively illustrate the front and back of the table reading device according to the first embodiment of the invention;
  • Figures 3a and 3b respectively illustrate the two sides of the slider fitting on the two faces of the device of Figure 2;
  • Figure 4 is a diagram of the device according to the second embodiment of the invention.

La description qui suit fait référence aux figures 2 et 3, qui illustrent un mode de réalisation préférentiel du dispositif d'acquisition d'une valeur d'oxygène selon l'invention dans lequel le support 1 du dispositif se présente sous la forme matériel d'une réglette.The following description refers to the figures 2 and 3, which illustrate an embodiment preferential of the device of acquisition of a value oxygen according to the invention in which the support 1 of the device comes in the material form of a strip.

Néanmoins, d'autres formes de supports du dispositif peuvent être envisagés sans sortir du cadre de la présente invention, en particulier un support 1 sous forme de disque avec un curseur se déplaçant circulairement et pointant une valeur d'un rayon du disque.However, other forms of media device can be considered without departing from the framework of the present invention, in particular a support 1 as a disk with a moving cursor circularly and pointing a value of a radius of the disk.

Selon les variantes de réalisation, le support 1 peut être composé d'un matériau choisi parmi du papier, du carton, du verre, du plastique.According to the variant embodiments, the support 1 can be made of a material chosen from paper, cardboard, glass, plastic.

Selon le mode de réalisation préférentiel, le dispositif selon l'invention comprend un support 1 de forme rectangulaire dont les dimensions sont inférieures ou égales à 20 cm de long et à 6 cm de large. La réglette de lecture peut ainsi être aisément glissée dans la poche d'un vêtement de l'utilisateur, tel qu'un pantalon ou une blouse, afin d'être toujours à portée de main. According to the preferred embodiment, the device according to the invention comprises a support 1 of rectangular shape whose dimensions are less than or equal to 20 cm in length and 6 cm in large. The reading strip can thus be easily slipped into the pocket of a user's garment, such as pants or a blouse, in order to always be at hand.

Avantageusement, le support 1 présente un recto 5 et un verso 6 afin de permettre la réalisation de deux tables de lecture sur une seule réglette.Advantageously, the support 1 has a front 5 and a back 6 to allow the realization of two reading tables on a single strip.

En effet, chaque face 5 et 6 du support 1 comporte une table de valeurs correspondant respectivement à des valeurs d'autonomie d'oxygène en fonction de la pression P restante dans la bouteille et du débit D pour deux capacités de bouteille différentes. Ainsi, par exemple, le recto présente un tableau de valeurs pour une bouteille de 1m3, soit de 5 litres, et le verso présente le même tableau pour une bouteille d'oxygène de 3 m3, soit de 15 litres.In fact, each face 5 and 6 of the support 1 comprises a table of values corresponding respectively to oxygen autonomy values as a function of the pressure P remaining in the bottle and of the flow rate D for two different bottle capacities. Thus, for example, the front presents a table of values for a 1m 3 bottle, or 5 liters, and the back presents the same table for a 3 m 3 oxygen bottle, or 15 liters.

Un curseur 2 muni d'une fenêtre de lecture 3 est apte à se déplacer le long du support 1 entre deux butées 4.A cursor 2 provided with a reading window 3 is able to move along the support 1 between two stops 4.

Selon un mode de réalisation préférentiel, le curseur 2 comprend deux colonnes, une première colonne sur laquelle sont reportées les différentes valeurs de pression P restante dans la bouteille, et une deuxième colonne consistant dans une fenêtre de lecture 3.According to a preferred embodiment, the cursor 2 has two columns, a first column on which the different values of pressure P remaining in the bottle, and a second column consisting of a reading window 3.

Pour connaítre l'autonomie d'oxygène, l'utilisateur doit tout d'abord lire la pression indiquée sur le manomètre de la bouteille. Il doit ensuite décider et/ ou appliquer un débit d'oxygène D en sortie de la bouteille, puis il adresse le curseur 2 sur la table de valeurs du support matériel 1.To know the oxygen autonomy, the user must first read the pressure indicated on the bottle pressure gauge. He must then decide and / or apply an oxygen flow D at the outlet of the bottle, then it addresses cursor 2 on the table hardware support values 1.

L'utilisateur place donc la fenêtre 3 du curseur 2 sur la colonne du débit D préalablement déterminé, puis il trouve, sur le curseur 2, la ligne correspondante à la pression d'oxygène P indiquée par le manomètre, et peut directement lire, sur la même ligne et dans la colonne de la fenêtre 3 le temps d'oxygène restant. The user therefore places the window 3 of the cursor 2 on the flow rate column D previously determined, then it finds, on cursor 2, the line corresponding to the oxygen pressure P indicated by the pressure gauge, and can read directly, on the same line and in the window 3 column the remaining oxygen time.

Les temps d'autonomie indiqués dans les tableaux peuvent avantageusement tenir compte de la marge de sécurité de 10% retranchée au temps théorique.The autonomy times indicated in the tables can advantageously take into account the margin of 10% security cut off from theoretical time.

Le dispositif selon l'invention permet ainsi une lecture directe et rapide qui éradique tout risque d'erreur lié à un mauvais calcul.The device according to the invention thus allows a direct and fast reading which eliminates all risk of error related to a bad calculation.

En outre, si le débit d'oxygène D à fournir devait changer, la nouvelle autonomie serait rapidement connue par simple déplacement du curseur 2 pour placer la fenêtre 3 dans la colonne correspondante au nouveau débit D.Furthermore, if the oxygen flow rate D to be supplied should change, the new autonomy would quickly be known by simply moving cursor 2 to place the window 3 in the column corresponding to the new flow D.

Les butées 4 encadrent le support 1. Elles permettent d'une part de maintenir le curseur 2 sur le support 1 de la réglette, et d'autre part elles peuvent avantageusement servir de support à des informations diverses telles que des instructions ou des indentifiants.The stops 4 frame the support 1. They on the one hand, keep cursor 2 on the support 1 of the strip, and on the other hand they can advantageously serve as a support for information various such as instructions or identifiers.

Selon une particularité de l'invention, les tableaux de valeurs d'autonomie sont rendus plus lisibles par des codes couleurs permettant de repérer certaines valeurs cruciales. Il est ainsi possible d'anticiper un changement de bouteille par exemple.According to a feature of the invention, the autonomy value tables are rendered more readable by color codes to identify some crucial values. It is thus possible anticipate a change of bottle, for example.

Dans une variante de réalisation de l'invention, illustré sur la figure 4, le dispositif d'acquisition d'une valeur d'autonomie d'oxygène peut être constitué par un dispositif électronique.In an alternative embodiment of the invention, illustrated in FIG. 4, the acquisition device of an oxygen autonomy value can be constituted by an electronic device.

Dans une telle variante, le support 1 est un support de mémorisation composée d'au moins une puce de circuit intégré. Le support 1 électronique comporte au moins une table de valeurs correspondant à une capacité donnée de bouteille d'oxygène, par exemple 1m3, et à une réserve de sécurité donnée, par exemple 10%. In such a variant, the support 1 is a storage medium composed of at least one integrated circuit chip. The electronic support 1 comprises at least one table of values corresponding to a given capacity of oxygen cylinder, for example 1 m 3 , and to a given safety reserve, for example 10%.

Néanmoins, le support 1 électronique peut avantageusement comporter une pluralité de tables de valeurs correspondant à une pluralité de capacités de bouteille avec une pluralité de réserves de sécurité respectives.However, the electronic support 1 can advantageously include a plurality of tables values corresponding to a plurality of capacities of bottle with a plurality of safety reserves respective.

Le dispositif selon l'invention peut alors présenter la forme générale d'une calculatrice électronique avec une fenêtre de lecture 3 et des touches de commandes 10.The device according to the invention can then present the general form of a calculator electronic with a reading window 3 and control buttons 10.

Les touches de commande 10 permettent de réaliser un adressage du support de mémorisation 1 par le contenu en positionnant un curseur de lecture 2 sur la case mémoire correspondante à la valeur recherchée. Le curseur de lecture 2 est alors constitué par un dispositif d'adressage d'une mémoire par le contenu, tel que cela est connu en électronique.The control keys 10 make it possible to carry out addressing of the storage medium 1 by the content by positioning a reading cursor 2 on the memory box corresponding to the value sought. The reading cursor 2 is then constituted by a content addressing device for a memory, as is known in electronics.

Ainsi, une touche de commande 11 peut permettre de sélectionner la capacité de bouteille utilisée, puis deux autre touches 12, 13 permettent d'indiquer, à travers un clavier numéroté 14, les valeurs respectives de pression P de la bouteille et de débit D souhaité.Thus, a control key 11 can make it possible to select the bottle capacity used, then two other keys 12, 13 are used to indicate, at through a keyboard numbered 14, the respective values pressure P of the bottle and desired flow rate D.

Enfin, une autre touche de commande 15 peut permettre de sélectionner la réserve de sécurité souhaitée, de 10% à 30% selon les applications.Finally, another control key 15 can allow to select security reserve desired, from 10% to 30% depending on the applications.

Claims (14)

Dispositif portable d'acquisition d'une valeur d'autonomie d'oxygène contenu dans une bouteille, la pression extérieure étant constante, caractérisé en ce que le dispositif comprend un support (1) portant au moins une table de valeurs adressée par un curseur (2) en fonction de la pression intérieure P de la bouteille et d'un débit D fixé, et une fenêtre de lecture (3) indiquant directement la valeur d'autonomie d'oxygène de la bouteille pour cette pression intérieure P et ce débit D donnés, et en ce que ledit dispositif est indépendant de la bouteille.Portable value acquisition device of autonomy of oxygen contained in a bottle, the external pressure being constant, characterized in that the device comprises a support (1) carrying the minus a table of values addressed by a cursor (2) as a function of the internal pressure P of the bottle and with a fixed flow rate D, and a reading window (3) directly indicating the oxygen autonomy value of the bottle for this inner pressure P and this given flow rate D, and in that said device is independent of the bottle. Dispositif selon la revendication 1, caractérisé en ce que le support (1) est un support matériel, le curseur (2) étant un curseur mobile se déplaçant sur le support (1), la fenêtre de lecture (3) étant solidaire du curseur (2).Device according to claim 1, characterized in that the support (1) is a material support, the cursor (2) being a moving cursor moving on the support (1), the reading window (3) being integral cursor (2). Dispositif selon la revendication 2, caractérisé en ce que le support (1) présente un recto (5) et un verso (6), chaque face (5, 6) étant respectivement munie d'une table de valeurs pour des capacités de bouteille différentes.Device according to claim 2, characterized in that the support (1) has a front (5) and a back (6), each side (5, 6) being respectively provided with a table of values for capacities of different bottle. Dispositif selon la revendication 3, caractérisé en ce que le recto (5) présente une table de valeurs d'autonomie d'oxygène pour une bouteille d'une capacité d'un mètre cube, et le verso (6) présente une table de valeurs d'autonomie d'oxygène pour une bouteille d'une capacité de trois mètres cube. Device according to claim 3, characterized in that the front (5) presents a table of values of oxygen autonomy for a bottle with a capacity of a cubic meter, and the back (6) presents a table of oxygen autonomy values for a bottle of capacity of three cubic meters. Dispositif selon l'une quelconque des revendications 2 à 4, caractérisé en ce que certaines valeurs cruciales des tables sont repérées par un code de couleurs.Device according to any one of claims 2 to 4, characterized in that certain crucial values of the tables are identified by a code colours. Dispositif selon l'une quelconques des revendications 2 à 5, caractérisé en ce que le support (1) présente une forme rectangulaire de réglette, le curseur (2) se déplaçant longitudinalement entre deux butées (4).Device according to any one of claims 2 to 5, characterized in that the support (1) has a rectangular strip shape, the cursor (2) moving longitudinally between two stops (4). Dispositif selon la revendication 6, caractérisé en ce que les butées (4) sont aptes à recevoir un signe distinctif et/ou des informations.Device according to claim 6, characterized in that the stops (4) are suitable for receiving a sign distinctive and / or information. Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que le support (1) présente une forme de disque, le curseur (2) se déplaçant autour du disque.Device according to any one of claims 2 to 5, characterized in that the support (1) has a disc shape, the cursor (2) is moving around the disc. Dispositif selon l'une quelconque des revendications précédentes , caractérisé en ce que le support (1) est composé d'un matériau choisi parmi du papier, du carton, du verre, du plastique.Device according to any one of previous claims, characterized in that the support (1) is made of a material chosen from paper, cardboard, glass, plastic. Dispositif selon la revendication 1, caractérisé en ce que le support (1) est un support de mémorisation électronique, le curseur (2) étant commandé par un programme d'adressage du support de mémorisation (1) par le contenu, la valeur d'autonomie d'oxygène étant affichée numériquement dans la fenêtre de lecture (3). Device according to claim 1, characterized in that the support (1) is a support for electronic storage, the cursor (2) being controlled by an addressing program from the support of memorization (1) by content, autonomy value of oxygen being displayed digitally in the window reading (3). Dispositif selon la revendication 10, caractérisé en ce que le support de mémorisation (1) comporte une pluralité de tables de valeur correspondant respectivement à des capacités de bouteilles différentes.Device according to claim 10, characterized in that the storage medium (1) includes a plurality of value tables corresponding respectively to capacities of different bottles. Dispositif selon l'une des revendications 10 à 11, caractérisé en ce que le support de mémorisation (1) comporte une pluralité de tables de valeur correspondant respectivement à des réserves de sécurité différentes.Device according to one of claims 10 to 11, characterized in that the storage medium (1) includes a plurality of value tables corresponding respectively to security reserves different. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la pression intérieure P donnée est lue sur un manomètre disposé sur la bouteille d'oxygène.Device according to any one of previous claims, characterized in that the given internal pressure P is read on a pressure gauge placed on the oxygen cylinder. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le débit D, fixé par l'utilisateur, détermine la position du curseur (2) sur le support (1).Device according to any one of previous claims, characterized in that the flow rate D, set by the user, determines the position of the cursor (2) on the support (1).
EP00401848A 1999-06-28 2000-06-28 Portable device for acquisition of oxygen autonomy Expired - Lifetime EP1065432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9908247A FR2795547B1 (en) 1999-06-28 1999-06-28 DEVICE FOR ACQUIRING AN OXYGEN AUTONOMY VALUE
FR9908247 1999-06-28

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EP1065432A1 true EP1065432A1 (en) 2001-01-03
EP1065432B1 EP1065432B1 (en) 2005-03-16

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EP00401848A Expired - Lifetime EP1065432B1 (en) 1999-06-28 2000-06-28 Portable device for acquisition of oxygen autonomy

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EP (1) EP1065432B1 (en)
AT (1) ATE291198T1 (en)
DE (1) DE60018641D1 (en)
FR (1) FR2795547B1 (en)

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Publication number Priority date Publication date Assignee Title
CN111580594A (en) * 2020-04-29 2020-08-25 杭州市中医院 Oxygen consumption assessment dial plate for transfer breathing machine

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US3784093A (en) * 1972-10-02 1974-01-08 K Bennett Factormatic slide rule
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US4876903A (en) * 1988-01-11 1989-10-31 Budinger William D Method and apparatus for determination and display of critical gas supply information
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US3670575A (en) * 1971-02-19 1972-06-20 Bruce D Emerick Indicating device for continuously indicating time to depletion of pressure tanks in use
US3784093A (en) * 1972-10-02 1974-01-08 K Bennett Factormatic slide rule
FR2414852A7 (en) * 1978-01-11 1979-08-10 Bina Alido Pocket rule for arithmetical and measurement conversion - is in form of wallet which opens into two parts for tabular display of multiples and equivalents
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CN111580594A (en) * 2020-04-29 2020-08-25 杭州市中医院 Oxygen consumption assessment dial plate for transfer breathing machine

Also Published As

Publication number Publication date
DE60018641D1 (en) 2005-04-21
FR2795547B1 (en) 2002-02-01
ATE291198T1 (en) 2005-04-15
FR2795547A1 (en) 2000-12-29
EP1065432B1 (en) 2005-03-16

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