FR3133425A3 - Pressurized fluid container equipped with an electronic device for calculating and displaying autonomy - Google Patents

Abstract

Title of the invention Pressurized fluid container equipped with an electronic device for calculating and displaying autonomy The invention relates to a pressurized fluid container (1) equipped with a fluid distribution tap (2) comprising an electronic device (3) for measuring fluid autonomy. Flow rate selection means (5) make it possible to select the desired fluid flow rate. A pressure sensor (31) makes it possible to measure the pressure of the fluid contained in the container (1) and provide a pressure signal to signal processing means (32) with a microprocessor (33). The microprocessor (33) includes an internal temperature sensor for measuring the temperature of said microprocessor. The fluid autonomy is calculated from the pressure signal, the temperature of the microprocessor (33) and the desired fluid flow rate selected. Abstract figure: Fig. 1

Description

Pressurized fluid container equipped with an electronic device for calculating and displaying autonomy

The invention relates to a container of pressurized fluid, such as a gas cylinder, equipped with a fluid distribution valve carrying an electronic microprocessor device, such as a digital pressure gauge, for calculating and displaying autonomy.

Nursing staff working in hospital buildings, emergency units (SAMU, Fire Intervention Services, etc.) or others, for example nurses, doctors, firefighters, etc. are regular users of fluid containers under pressure, in particular of gas cylinders, in particular medical gases, such as oxygen or medical air.

A fluid container is generally equipped with a fluid dispensing valve made of metal, such as brass and/or stainless steel, comprising flow rate selection means to allow a user, such as a healthcare worker, to choose a desired fluid flow rate, such as a rotating flywheel, and a fluid outlet connector or socket for delivering the fluid, typically gas, at the desired flow rate having been selected by the user via the flow rate selection means.

Advantageously, the gas distribution valve is protected by a covering or protective cap forming a protective shell against shocks, dirt, etc. Such gas containers are for example described by EP-A-3006810, EP-A-2940370 , EP-A-2937620 and EP-A-29

It is known to estimate the fluid autonomy of a fluid container, such as a gas bottle, that is to say to estimate the duration during which the container can still supply fluid, e.g. gas, at the rate selected by the user.

The autonomy estimate is done by means of an electronic device comprising a pressure sensor attached to the fluid distribution valve fitted to the fluid container, which makes it possible to measure the pressure of the residual fluid within the container, then to provide a pressure signal to microprocessor signal processing means configured to calculate the autonomy of the container from the pressure signal provided and the gas flow rate selected by the user. The calculated autonomy is then displayed by a screen or the like carried by the electronic device. This is described in particular by WO-A-2005/093377, EP-A-3440605 or EP-A-3421866. The display screen can be touch sensitive as taught by EP-A-3002498. Advantageously, the display screen is located in a high position to facilitate reading, as described by EP-A-3117136.

In order to refine the autonomy calculation, it was proposed to take into account the temperature of the fluid and the ambient temperature, that is to say the temperature of the atmosphere of the place where the container is located. fluid, as taught by EP-A-3067665.

However, performing autonomy calculations based on ambient temperature is not ideal and can pose problems with calculation accuracy.

Thus, to measure the ambient temperature, it is necessary to provide a dedicated external temperature sensor, which complicates the architecture of the assembly.

Furthermore, the ambient temperature is only a reflection of an average temperature of the ambient environment measured around the faucet, which can be influenced by different factors, in particular the temperature of the air, that of the different elements of the faucet, of the protective covering… The temperature sensor being carried by the tap, its measurements are therefore necessarily distorted.

The problem is therefore to be able to refine or improve the calculation or estimation of the fluid autonomy of a container of pressurized fluid, in particular the gas autonomy of a compressed gas bottle, without using a pressure sensor. ambient temperature and/or without having to resort to measuring the ambient temperature, that is to say the atmosphere around the valve or the cover.

The solution of the invention relates to a pressurized fluid container, in particular a pressurized gas cylinder, equipped with a fluid distribution valve comprising an electronic device for measuring fluid autonomy, in which:

• the fluid dispensing valve comprises flow rate selection means enabling a user to select a desired fluid flow rate from among a plurality of selectable fluid flow rates, and
• the electronic device comprises at least one pressure sensor configured to measure the pressure of the fluid contained in the container and provide at least one pressure signal, and signal processing means comprising at least one microprocessor.

Moreover :

• said at least one microprocessor includes an internal temperature sensor configured to measure the temperature of the microprocessor, and
• the signal processing means are configured to determine at least one fluid autonomy from at least the pressure signal provided by the pressure sensor, the temperature of the microprocessor measured by said internal temperature sensor and a selected fluid flow rate .

Depending on the embodiment considered, the pressurized fluid container of the invention may comprise one or more of the following characteristics:

• the electronic device comprises a housing.
• the fluid dispensing valve comprises a metal body, in particular a copper alloy, such as brass, or a stainless steel, or both.
• it includes a protective covering arranged around the fluid distribution valve.
• the fluid distribution valve is protected by the protective cover.
• the protective covering is made of metal or polymer, preferably polymer.
• the protective covering comprises a compartment for housing one or more electrical cells or batteries electrically connected to the electronic device to supply it with electric current.

• the flow selection means include a rotary flow selector that can be manipulated/actuated by the user, for example a nursing staff (i.e. nurse, doctor, rescuer or other).

• the fluid flow selection means comprise a rotary wheel.
• the fluid flow selection means are configured to allow a fluid flow rate of between 0 and 30 L/min to be selected.
• the fluid dispensing valve includes a fluid outlet fitting.
• the fluid distribution valve comprises a fluid outlet connector and the flow selection means comprises a rotary handwheel, said rotary handwheel being arranged coaxially around said fluid outlet connector.
• the signal processing means comprise a microcontroller type microprocessor.
• the signal processing means comprise an electronic card.
• the electronic card carries said at least one microprocessor, preferably a microcontroller.
• the microprocessor implements at least one algorithm, in particular an autonomy calculation algorithm.
• the electronic card also carries said pressure sensor used to measure the pressure of the fluid within the container.
• the protective covering further comprises a carrying handle and/or a hanging device, in particular mobile, in particular pivoting, making it possible to hang/suspend the container/faucet/covering assembly from a hospital bed bar or stretcher, or the like.
• the protective covering comprises a first opening in which the rotating steering wheel is housed, preferably the rotating steering wheel and the fluid outlet connector arranged coaxially with each other.
• the protective covering comprises a second opening in which the electronic device is housed.

• the electronic device includes data display means.
• the data display means includes a display screen.
• the electronic device comprises an external box carrying the data display means and containing the signal processing means.

• the data display means are configured to display fluid autonomy, preferably expressed in hours and minutes.
• the data display means are further configured to display a pressure and/or flow rate value of fluid, in particular gas.
• the gas distribution valve includes integrated gas expansion means, i.e. it is an integrated regulator valve or RDI.
• the gas expansion means includes an expansion valve and a valve seat.
• the fluid distribution valve comprises a body comprising an internal fluid circuit connecting at least one fluid inlet to at least one fluid outlet.
• the fluid outlet is carried by the outlet fitting.
• the fluid inlet is in communication with the internal volume of the fluid container.
• the fluid inlet is carried by a threaded end piece arranged on the metal body allowing connection by screwing to the fluid container, in particular to the neck of the fluid container carrying the fluid inlet/outlet port of said container.
• the fluid distribution valve further comprises flow rate adjustment means.
• the flow adjustment means arranged in the internal fluid circuit, downstream of the fluid expansion means of the RDI.
• the flow adjustment means are controlled by the flow selection means.
• the flow rate adjustment means comprise a rotating disk comprising calibrated orifices each corresponding to a given flow rate, namely the different selectable flow rates.
• the pressure sensor is a combined pressure and temperature sensor configured to enable measurement of the pressure and temperature of the fluid originating from the internal volume of the container.
• the pressure sensor measures the pressure and the temperature of the fluid before expansion of said fluid, i.e. upstream of the RDI fluid expansion means.
• the pressure sensor measures the pressure and the temperature of the fluid in the internal fluid circuit of the body of the fluid distribution valve, preferably upstream of the fluid expansion means of the RDI.

• the container is a pressurized gas cylinder, i.e. a gas cylinder.
• the container comprises a container body delimiting an internal volume or compartment containing a fluid under pressure, such as a compressed gas or gas mixture (i.e. pressure > 1 atm).
• the container body comprises an internal volume having a volume less than or equal to 50 L (water equivalent).
• the container body has a cylindrical shape, preferably an ogival shape.
• the container body includes a neck having an outlet in fluid communication with the internal volume.
• the gas distribution valve is fixed to the neck of the container body, in particular screwed to the neck.
• the container body is made of metallic material(s), in particular steel or aluminum alloy, or composite material(s).
• the gas or gas mixture stored in the internal volume of the gas container is oxygen, air, a NO/N ₂ mixture, a He/O ₂ mixture, O ₂ /N ₂ O or any other gas, in particular any other medical gas.
• the fluid, typically a gas or gas mixture, is compressed to a pressure less than or equal to 350 bar abs, typically less than 300 bar abs.
• the fluid flow selection means, such as gas, allow a user to select a desired flow rate from a plurality of selectable flow rates comprised between 0 L/Min and 30 L/min, preferably between 0.5 L/Min and 25 L /min.
• the flow selection means make it possible to select a desired flow rate from 5 to 30 different flow rates, preferably between 8 and 25 different flow rates, for example from 10 to 20 different gas flow rates, for example all or part of the following flow values : 0.5, 1, 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 15, 20, 22 and 25 L/min.
• it includes storage means, such as a flash memory or the like, making it possible to store the plurality of flow and/or pressure values.

The invention also relates to a use of a pressurized fluid container according to the invention, typically a pressurized gas cylinder, for storing or distributing gas, in particular a medical gas chosen from oxygen, air, a NO/N ₂ mixture, a He/O ₂ mixture, O ₂ /N ₂ O or other, preferably oxygen.

Furthermore, the invention also relates to a patient ventilation assembly comprising a pressurized fluid container, such as a compressed gas bottle, according to the invention, a respiratory interface for supplying gas to a patient, and a flexible conduit connecting said container fluidly to said respiratory interface or fluidly connecting said container to a medical ventilation apparatus or device itself fluidly connected to the respiratory interface.

Preferably, the respiratory interface is a respiratory mask or the like.

Advantageously, the pressurized fluid container is a compressed oxygen bottle.

The invention will now be better understood thanks to the following detailed description, given by way of illustration but not limitation, with reference to the appended figures among which:

schematizes an embodiment of a fluid distribution valve comprising an electronic device for measuring fluid autonomy for a pressurized fluid container according to the invention;

is an exploded view of a protective covering designed to surround and protect the fluid distribution valve from ; And

schematizes a pressurized gas bottle equipped with a fluid distribution valve according to the invention, such as that of .

schematizes an embodiment of a pressurized fluid container 1 according to the invention, namely here a pressurized gas bottle or cylinder with a cylindrical body made of steel or aluminum alloy, equipped with a fluid distribution valve 2, also called a valve or tap block, on which is mounted an electronic device 3 for displaying the autonomy and the gas flow rate comprising data display means 34, for example a digital screen 4, for example of the type Segment LCD.

The fluid distribution valve 2, here gas, comprises a brass body for example, which is crossed by an internal gas circuit, that is to say one or more passages, conduits or gas channels, in communication fluidic with the internal volume of the gas container 1.

As illustrated in , the fluid distribution valve 2 comprises flow rate selection means 5, namely here a rotating handwheel or the like, allowing a user, such as a nursing staff, to select a desired flow rate of fluid (ie gas) from among a plurality of selectable flow rates between 0 and 30 L/min, for example the following flow rates: 0.5, 1, 2, 3, 5, 8, 10, 12, 15, 20, 22 and 25 L/min.

The fluid flow is adjusted or regulated by flow adjustment means, such as a rotating disk carrying calibrated orifices each corresponding to a given fluid flow, which are arranged on the internal fluid circuit and which cooperate with the selection means flow rate 5.

The gas flow is supplied to the user by a fluid outlet socket or connector 6, that is to say a nozzle or the like, to which a flexible pipe can be attached for example.

A second fluid outlet socket 8 can also be provided, called a notched socket, allowing the fluid connection of a ventilation device or another device, as shown schematically in .

Furthermore, the fluid distribution valve 2 also includes integrated expansion means 7, that is to say that it is a valve 2 with an integrated regulator (RDI), making it possible to carry out a reduction of the pressure of the gas (i.e. fluid) from the pressure at which it is in the internal volume or compartment 10 of the gas container 1, called high pressure, typically a pressure of up to 350 bar abs, up to its pressure of use, called low pressure, which is generally less than 10 bar abs, for example of the order of 4 bars abs or less.

The gas expansion means 7 usually comprises an expansion valve and a valve seat (not shown) cooperating with each other to reduce the gas pressure. The gas expansion means 7 are arranged on the internal fluid circuit, that is to say one or more gas passages, conduits or channels, passing through the body of the valve 2 and putting the internal volume 10 of the valve into fluid communication. gas container 1 and the gas outlet socket 6 serving to deliver the gas at the desired gas flow rate selected by the user by actuation of the flow rate selection means 5.

The part of the gas circuit located upstream of the gas expansion means 7 is subjected to high pressure, that is to say to the pressure prevailing in the internal volume 10 of the container 1, while that located downstream of the gas expansion means 7 is subjected to low pressure, that is to say to the pressure of the gas after expansion.

The flow adjustment means are arranged downstream of the gas expansion means 7, that is to say in the part of the internal fluid circuit subject to low pressure.

The electronic device 3 further comprises a pressure sensor 31 used to measure the pressure of the fluid, e.g. gas, within the container 1 and provide at least one pressure signal, and signal processing means 32 with microprocessor(s). ) 33, such as an electronic card with a microcontroller, to determine at least one gas autonomy from the pressure signal(s) supplied by the pressure sensor 31, the flow rate selected, via the rotary selector 5 and a temperature measured at within the microprocessor 33.

Indeed, according to the invention, a particular microprocessor is used, namely a microprocessor 33 comprising an internal temperature sensor configured to measure the temperature of said microprocessor 33. As explained below, this temperature of the microprocessor will make it possible to calculate more precisely the autonomy of the bottle 1 than an external temperature sensor measuring the ambient temperature according to the prior art.

The electronic device 3 also includes a position sensor for determining the position of the flow selection means 5, typically a rotary selector. It is configured to determine the gas flow rate chosen by the user from a determination of the angular position of the rotary selector.

The pressure sensor 31 is preferably connected to the part of the gas circuit of the valve body 2 which is located upstream of the gas expansion means 7, which is subjected to the high fluid pressure which reflects the pressure in the internal volume 10 from bottle 1 of fluid.

Advantageously, the pressure sensor 31 is a combined gas pressure and temperature sensor making it possible to measure not only the pressure of the gas coming from the bottle 1 but also its temperature.

Preferably, the pressure sensor 31 and the microprocessor signal processing means 32 are arranged in a rigid housing 30, for example made of polymer or metal.

Data display means 34 are also provided, such as a digital screen 4, making it possible to display information useful to the user, in particular the fluid autonomy calculated by the signal processing means 32 and/or the corresponding gas flow. The digital screen 4 is carried by the rigid case 30.

Means are also provided for supplying electric current electrically connected, directly or indirectly, to the various components requiring electricity to operate, in particular to the signal processing means 32, to the pressure sensor 31, to the microprocessor 33, to the display means 34 of the rigid housing 30 so as to supply them directly or indirectly with electric current and thus allow their operation. Advantageously, the means of supplying electric current comprise an electric cell or battery advantageously having an electrical autonomy of at least 5 years, ideally around 10 years.

The electric current supply means can be inserted in a dedicated compartment arranged in the protective covering 40 or "cap", for example arranged around the tap 2, namely here an RDI.

Indeed, as illustrated in , a protective covering 40 is arranged around the tap 2 and makes it possible to protect it against shocks or other attacks, such as. The protective covering 40 is here formed of two half-shells 40a, 40b which are assembled together by sandwiching the valve 2. The cover 40 is surmounted by a carrying handle 41 allowing a user to manually transport the bottle/RDI/cover assembly. It may also include a mobile hanging device (not shown), such as a pivoting hook, configured to allow the assembly to be hung, ie suspended, from a bed rail or the like.

The protective covering 40, i.e. the two half-shells 40a, 40b, also includes cutouts used to house the electronic device 3 and the rotary selector 5 in particular.

In other words, the valve or RDI 2 comprises an electronic device 3 used to display data(s) relating to the fluid content. More precisely, the electronic device 3 is used to measure and predict gas consumption, to estimate the remaining autonomy (or available if not in use) following this consumption and to inform the user.

The measurement of this consumption (or available consumption) must be as precise as possible in order to estimate as faithfully as possible the remaining time of use (or available if no use in progress), i.e. that is to say the autonomy of the bottle 1 considered. To do this, device 3 must first start by evaluating the quantity of gas present in bottle 1, that is to say the volume of gas available.

To do this, the pressure sensor 31 makes it possible to know the pressure of the gas in the bottle 1 which can be interpreted as a volume of gas (V_gaz) available thanks to Gay Lussac's law:

P_atm x V_gaz = P_gaz x V_cyl

Or :

• P_atm is the atmospheric pressure (i.e. 1 bar abs),
• V_gaz is the volume of gas available in bottle 1,
• P_gaz is the gas pressure in bottle 1 measured by pressure sensor 31, and
• V_cyl is the (constant) internal volume of bottle 1 (in water equiv.).

In other words, the volume of gas available is:

V_gaz = (P_gaz x V_cyl) /P_atm

The electronic device 3 periodically measures the pressure inside 10 of the bottle 1 and then estimates its decrease over time. By comparing this decrease with the quantity of gas remaining in bottle 1, we can estimate how long it will take all of the gas to be consumed, that is to say, calculate the gas autonomy of the gas container 1.

It is essentially during the use of bottle 1, that is to say when the gas is being drawn off, that the remaining autonomy must be calculated and displayed to the attention of the user, typically nursing staff. However, it may also be interesting to have this information when there is no use of gas, for example to know, before treating a patient, if the bottle 1 still contains enough gas to treat the patient considered. according to the dosage set by the nursing staff, such as a doctor or the like.

The gas pressure value, that is to say P_gaz, is calculated with the direct measurements made by the pressure sensor 31. However, this calculation is influenced by the temperature of the external environment, as recalled by the gas law perfect:

P x V = n x R x T

In other words, the volume V of gas delivered depends on the temperature to which the gas is exposed. However, leaving the bottle 1, the gas passes through the metal body of the valve 2 (e.g. RDI), located in the cowling 40, before reaching the final distribution circuit which is fluidly connected to the valve 2 via a flexible pipe For example. The gas therefore first passes through an internal environment comprising the cover 40 and the valve 2, before being delivered to the user.

In other words, it is this internal environment which will be first and immediately in contact with the gas, after its exit from the bottle 1, and not the ambient atmosphere reigning around the cowling 20, and it is therefore also this internal environment which must be characterized as best as possible to make it possible to refine the gas output and the autonomy calculations in particular, and not simply the ambient environment.

Furthermore, during the expansion of the fluid, the depressurization phenomenon causes a strong cooling of the metal body of the valve 2 by the Joule-Thomson effect, which can disrupt the calculations since it influences the aforementioned internal environment.

In addition, the electronic device 3 being in contact with the ambient air, thermal exchanges take place between it and the ambient atmosphere, which can also disrupt the calculation of the autonomy by varying the internal temperature of the electronic device 3.

We easily understand that it is necessary to take into account all these phenomena in order to be able to refine the calculation of the autonomy and that of simply measuring the ambient temperature, that is to say that of the atmosphere around the cowling 40 and RDI 2, can only lead to inaccuracies, or even calculation errors.

In order to solve this problem, according to the present invention, the signal processing means 32 of the electronic device 3 are equipped with a particular microprocessor, namely a microprocessor 33 having an integrated temperature sensor, i.e. internal to the microprocessor, which makes it possible to measure the internal temperature of the microprocessor 33, which reflects that of the electronic device 3, and thus refine the calculation of the autonomy.

Indeed, the temperature sensor integrated into the microprocessor 33 makes it possible to measure the internal temperature prevailing in the housing 30 containing all the electronic components other than the sensors. However, the housing 30 is in direct contact with the body of the valve 2 with integrated regulator or RDI and as a result, the heat exchange taking place between them will harmonize their temperatures. The temperature within the box 30, therefore also that of the microprocessor 33 itself, is therefore a faithful reflection of the temperature of the body of the RDI and therefore also of the temperature of the internal environment immediately mentioned above, which is a better reference than the external ambient environment.

Indeed, the Joule-Thomson effect due to the expansion of the gas will cool the RDI 2 and the immediate environment within the cowling 40, which will modify the expansion phenomenon and the volume of the same quantity of material. It is therefore important to take a temperature representative of this phenomenon. Therefore, by taking into account the internal temperature of the electronic device 3, in particular the temperature of the microprocessor 33, as explained above, to characterize the immediate gas outlet environment, it is possible to best estimate the volume of gas generated during expansion.

As already said, this internal temperature of the microprocessor 33 is a better reflection of the average temperature of the environment since it is both influenced by the ambient temperature through the cover 40 which is the destination environment of the gas and by both by the temperature of the RDI 2.

In addition, using a microprocessor 33 with an internal temperature sensor also makes it possible to reduce the number of sensors required, thus making it possible to reduce the cost but above all the electrical consumption of the electronic device 3 and, moreover, to reduce the presence of electronic components at the same time. exterior of the waterproof housing 30.

Furthermore, given that few operations are carried out by the microprocessor 33 because the consumption is optimized, there is no heating of the electronic card, therefore the measured temperature is truly representative.

[Table 1] gives a comparison of temperature values recorded over time for a gas flow rate of 0.5 L/min, namely the temperature of the gas, of the microprocessor 33 and ambient.

Gas temperature
(in °C) Microprocessor temperature (in °C) Ambient temperature
(in °C) 16.59 25 25 16.55 25 25 16.53 25 25 16.42 25 25 16.41 25 25 16.38 25 25 16.37 25 25 16.34 25 25 16.33 25 25 16.31 25 25 16.3 25 25 16.27 25 25 16.26 25 25 16.22 25 25 16.22 24 25 16.21 25 25 16.19 25 25 16.18 25 25 16.17 25 25 16.16 25 25 16.14 25 25 16.12 25 25 16.09 25 25 16.08 24 25

Analogously, [Table 2] gives a comparison of temperature values recorded over time for a gas flow of 15 L/min, namely the temperature of the gas, of the microprocessor 33 and ambient.

Gas temperature
(in °C) Microprocessor temperature (in °C) Ambient temperature
(in °C) 12.2 24 25 12.19 24 25 12.11 24 25 12.06 24 25 12 24 25 11.93 24 25 11.85 24 25 11.77 25 25 11.43 23 25 11.1 24 25 10.94 24 25 10.79 23 25 10.51 25 25 10.38 24 25 10.25 24 25 10.18 24 25 10.06 24 25 9.94 24 25 9.73 24 25 9.58 24 25 9.43 24 25 9.24 23 25 9.07 24 25 8.92 24 25 8.66 23 25 8.5 24 25 8.26 23 25 8.08 23 25 7.98 23 25 7.76 23 25 7.62 23 25 7.45 23 25 7.28 23 25 6.99 23 25 6.92 22 25 6.81 22 25 6.76 22 25

As we can see, the temperature value of the microprocessor is representative of the gas dispensing environment, that is to say the ambient temperature.

The microprocessor temperature value drops more as the flow rate increases but always remains close to that of the ambient temperature, while the gas temperature drops drastically.

In other words, the difference in the calculation of the autonomy is more precise when it is based on the temperature of the microprocessor which is close to the ambient temperature than when the gas temperature is taken as a reference.

Claims (8)

Container (1) of pressurized fluid equipped with a fluid distribution valve (2) comprising an electronic device (3) for measuring fluid autonomy, in which:

• the fluid dispensing valve (2) comprises flow rate selection means (5) enabling a user to select a desired fluid flow rate from among a plurality of selectable fluid flow rates, and
• the electronic device (3) comprises at least one pressure sensor (31) configured to measure the pressure of the fluid contained in the container (1) and provide at least one pressure signal, and signal processing means (32) comprising at least one microprocessor (33),

characterized in that:

• said at least one microprocessor (33) comprises an internal temperature sensor configured to measure the temperature of said microprocessor, and
• the signal processing means (32) are configured to determine at least one fluid autonomy from at least the pressure signal supplied by the pressure sensor (31), the temperature of the microprocessor (33) measured by said internal temperature sensor and desired fluid flow selected.

Container (1) according to claim 1, characterized in that the flow rate selection means (5) comprise a rotary flow selector manipulatable by a user, preferably a rotating hand wheel, to select a flow rate between 0 and 30 L/Min . Container (1) according to claim 1, characterized in that the electronic device (3) comprises a waterproof housing (30) comprising the signal processing means (32). Container (1) according to claim 1, characterized in that the electronic device (3) is fixed to the fluid distribution valve (2). Container (1) according to claim 1, characterized in that the electronic device (3) further comprises data display means (34) configured to display a calculated autonomy and/or a selected fluid flow value. Container (1) according to claim 1, characterized in that it comprises a protective covering (40) arranged around the fluid distribution tap (2). Container (1) according to claim 1, characterized in that the fluid distribution valve (2) comprises a fluid outlet connection (6) and the flow selection means (5) comprise a rotary handwheel, said handwheel rotary being arranged coaxially around said fluid outlet connector (6). Use of a container (1) of pressurized fluid according to one of the preceding claims, typically a pressurized gas cylinder, for storing or distributing a fluid, in particular a medical gas chosen from oxygen, air, a NO/N ₂ mixture, a He/O ₂ mixture, O ₂ /N ₂ O or other, preferably oxygen.