EP3174496B1 - Device for fixing a temperature sensor intended to be placed in the auditory canal of an animal - Google Patents

Description

1. Field of the invention

The field of the invention is that of collecting information relating to animals.

More specifically, the invention relates to a device and a system for fixing a temperature sensor, intended to be placed in the ear canal of an animal, to raise the temperature of an animal, punctually or throughout. his existence.

In particular, such a system may be equipped with visual and / or electronic identification means, to identify the animal that carries it.

Such a system is intended to equip any type of animal, company or farm, including animals dedicated to consumption.

2. Prior Art

In order to improve the monitoring of a herd, improve productivity, detect a disease, an ovulation period, or a calf at the first symptoms, and / or follow the evolution of a disease, it is increasingly It is more common to carry out different temperature readings on the animals concerned.

To do this, it has been proposed in particular in the patent application US2011251514 (Fever Tags ®) to associate a temperature probe with a label intended to be fixed on the ear of an animal.

Such a system of temperature readings, illustrated in figure 1 , therefore comprises a male portion 11 and a female portion 12 forming the label, and a probe 13 for performing temperature readings. The probe 13 is connected to the female part 12 by means of a cable 14. The female part 12 is furthermore equipped with a visual indicator 121, making it possible to alert a breeder in the event of abnormal temperature of the animal. .

The probe 13 and a portion of the cable 14 are inserted into the auditory canal of the animal. The remainder of the system is external to the ear canal, and conventionally attached to the ear of the animal, by insertion of the male part 11 into the female part 12, through the ear of the animal.

A disadvantage of this system of the prior art is that it is particularly bulky. There is thus a risk that the animal wedges the cable 14 in a branch or a fence, causing the removal of the probe 13, or rubs against another animal and deteriorates the system. In addition, such a system is troublesome for the animal.

Another disadvantage of this system of the prior art is that it does not replace animal identification marks, which must be affixed to at least one ear of the animal according to the legislation of many countries, so as to allow the traceability and certification of the origin of animals. It is therefore necessary to pierce the ear of the animal twice, once to affix the identification mark, once to fix the system of temperature readings, which causes additional suffering for the animal, and may be prohibited in some countries.

It is also known from the document FR 2,233,971 a device for indicating an increase in the temperature of an animal, comprising an electronic assembly attached to the animal by means of a harness, having similar disadvantages.

It is also known from the document KR 2014 0077992 a device for communicating data, in particular the body temperature of an animal, fitting into the auditory canal of an animal. Such a device, shaped like a shell, comprises a portion formed of polyurethane and defining a housing.

There is a need for a new system of temperature readings of an animal, but which does not have all the disadvantages of the prior art.

3. Presentation of the invention

The invention proposes a novel solution in the form of a device for fixing at least one temperature sensor to an animal, intended to be placed in the ear canal of an animal according to claim 1.

Thus, the invention is based on a new and inventive approach to the temperature measurement of an animal by its integral placement in the auditory canal of the animal allowing, for example, a small footprint, less discomfort for the animal and a decrease in the risk of malfunction due to the external environment (eg another animal in the flock, hanging in vegetation, fencing, etc.).

It is noted that such a device can be maintained in the auditory canal thanks to the second spring portion. This second portion can be supported on at least two separate areas of the ear canal, in order to keep the device in place. Alternatively, the first portion and the second portion each bear on a separate area of the ear canal. In this way, the housing defined in the first portion is in contact with the auditory canal, which allows a more efficient temperature measurement.

In particular, the two distinct areas of the auditory canal are diametrically opposed, which allows a better maintenance of the device in the auditory canal.

In addition, the second spring portion allows to leave a passage of air in the ear canal. The device according to the invention therefore does not alter the auditory capabilities of the animal.

According to a particular characteristic of the invention, the second portion is configured to take at least two positions, a compression position and a holding position. In the compression position, the second portion is deformed so as to allow inserting the device into the ear canal. In the holding position, the second portion substantially resumes and / or tends to approach its original shape so as to maintain the device integral with the auditory canal.

In particular, the housing adapted to receive at least one temperature sensor and transmission means of at least one temperature value comprises an inlet of the temperature sensor and at least one air exhaust port.

Such an air exhaust port makes it easier to insert the temperature sensor into the housing.

According to a particular characteristic of the invention, the first portion defines a substantially cylindrical housing, a height of which coincides with a first bearing zone of the auditory canal when the device is placed in the auditory canal.

The invention thus defines a zone of close and maximized contact between the temperature sensor and the wall of the auditory canal of the animal, thus allowing a high-performance temperature measurement.

In particular, the inlet of the temperature sensor is located on a first base of the substantially cylindrical housing, and or the air exhaust orifice (s) are located near a second base of the housing substantially cylindrical.

According to a first example of a fastening device not forming part of the invention, the second spring portion is in the form of a sheath at least partially enveloping the first portion.

In particular, the sleeve and the first portion are merged on a portion intended to bear on the first zone of the auditory canal. In addition, the sleeve is flexible at a portion intended to bear on the second zone of the auditory canal. This allows in particular to facilitate the placement of the device in the auditory canal of the animal.

According to a particular feature, the sheath comprises at least one air inlet orifice and an air outlet orifice located on either side of the part intended to bear on the second zone of the auditory canal. Such openings allow air passage in the ear canal, so as not to alter the auditory capabilities of the animal.

According to another particular characteristic, the sheath takes an ogival shape. Its first end, in the direction of introduction of the device in the auditory canal, thus has a rounded shape, facilitating the insertion of the device in the ear canal of the animal and avoiding injury.

In particular, the sheath has a longitudinal axis substantially parallel to a longitudinal axis of the housing.

According to the invention, the second portion comprises at least one spring blade and the first portion is a helical element connected to the blade or blades spring.

For example, according to one embodiment, the second portion comprises a single spring blade. In this case, the helical element forming the first portion may bear on a first zone of the auditory canal, and the spring blade forming the second portion may bear on a second zone of the auditory canal.

According to another embodiment, the second portion comprises three spring blades, distributed at equal distances around the helical element. In this case, each leaf spring can bear on a separate area of the auditory canal, distributing equally the different forces.

According to another example of fastening device not forming part of the invention, the second spring portion is a flexible plate connected by one of its sides to the first portion.

According to this example, in the compression position, the flexible plate may be wound at least partially around the first portion to facilitate insertion of the device into the ear canal.

According to another example of a fastening device not forming part of the invention, the first and second portions comprise a helical element, formed of at least one turn of a first diameter, defining the housing, and at least one turn of a second diameter, forming a spring, the second diameter being greater than the first diameter.

According to another aspect of the invention, the device also comprises at least one housing adapted to receive electronic means for identifying the animal.

In particular, the electronic identification means, the temperature sensor and the transmission means of at least one temperature value can be placed in the same housing, in order to reduce the size of the device.

In this case, the means for transmitting at least one temperature value can also be used to transmit an identifier of the animal.

According to another particular characteristic of the invention, the device comprises a marking surface of an identifier of the animal. For example, such a marking surface is defined on the flexible plate, on the sheath, or on the spring blade of the fixing device.

This allows to have a visual identifier of the animal, to verify its identity when removing the device for example.

According to a particular characteristic, the device comprises withdrawal means of the device.

Such means take for example the form of a string attached to the first and / or second portion, a notch, etc., accessible by hand or with the aid of a specific tool, to recover in all ease the device when needed.

The invention also relates to a system for fixing at least one temperature sensor to an animal, intended to be placed in the ear canal of an animal, according to claim 9.

In particular, a system comprises a fixing device as previously described. It can therefore of course include the various characteristics relating to the fixing device according to the invention, which can be combined or taken separately. Thus, the features and advantages of this system are the same as those of the fastener. Therefore, they are not detailed further.

In particular, the system also comprises electronic identification means of the animal, inserted in the housing or in another housing of the fixing device.

According to a particular embodiment, the electronic identification means, the temperature sensor and the transmission means of at least one temperature value are previously inserted in a glass capsule, or "glass tag", inserted in the housing. formed by the first portion of the fastener.

Such a system makes it possible in particular to place a temperature sensor integrally in the ear canal of an animal in order to reduce the bulk, not to disturb the animal and / or to reduce the risk of malfunction due to the external environment.

This system also makes it possible to fully place a temperature sensor and electronic identification means in the auditory canal of the animal, which avoids piercing the ear of the animal several times, as proposed in the prior art. .

4. List of figures

• la figure 1 présente un système de relevés de température connu de l'art antérieur ;
• la figure 2 illustre en perspective une capsule en verre telle qu'insérée dans un dispositif de fixation selon un mode de réalisation de l'invention ;
• les figures 3A et 3B illustrent différentes vues d'un premier exemple de dispositif de fixation ne faisant pas partie de l'invention
• les figures 4A et 4B illustrent différentes vues d'un premier mode de réalisation de l'invention ;
• les figures 5A et 5B illustrent différentes vues d'un autre mode de réalisation de l'invention ;
• les figures 6A et 6B illustrent différentes vues d'un autre exemple de dispositif de fixation ne faisant pas partie de l'invention ;
• les figures 7A et 7B illustrent différentes vues d'un autre exemple de dispositif de fixation ne faisant pas partie de l'invention.

Other characteristics and advantages of the invention will emerge more clearly on reading the following description of particular embodiments, given as simple illustrative and non-limiting examples, and the appended drawings, among which:

• the figure 1 presents a system of temperature readings known from the prior art;
• the figure 2 illustrates in perspective a glass capsule as inserted into a fixing device according to one embodiment of the invention;
• the Figures 3A and 3B illustrate different views of a first example of a fastening device not forming part of the invention
• the Figures 4A and 4B illustrate different views of a first embodiment of the invention;
• the Figures 5A and 5B illustrate different views of another embodiment of the invention;
• the Figures 6A and 6B illustrate different views of another example of a fastening device not forming part of the invention;
• the Figures 7A and 7B illustrate different views of another example of a fastening device not forming part of the invention.

5. Description of embodiments of the invention 5.1 General principle

The general principle of the invention is based on a device for fixing at least one temperature sensor comprising two portions, a first portion of which defines at least one housing for receiving the temperature sensor (s) and means for transmitting the measured temperatures. , possibly intended to bear on at least one area of the auditory canal, and a second spring portion, intended to bear on at least one area of the auditory canal.

As a result, such a device, or rather the fixing system comprising such a device, at least one temperature sensor and means for transmitting the measured temperatures, can be inserted completely into the auditory canal of an animal. Such a system can be permanently placed in the ear canal, to perform one or more temperature readings and transmit these readings to a reader, placed outside the animal.

To do this, the first portion of the fixing device defines a housing adapted to receive the temperature sensor or sensors, means for transmitting the temperatures recorded, and possibly electronic means for identifying the animal.

For example, as illustrated in figure 2 the temperature sensor (s) 21, the transmission means (22) for the temperatures recorded, and possibly the electronic identification means (23) for the animal, are previously inserted in a glass capsule 20, also called a "glass tag". The first portion then defines a substantially cylindrical housing, adapted to receive such a "glass tag".

In particular, if the "glass tag" comprises electronic means for identifying the animal 23, comprising for example an antenna connected to a storage element bearing an identifier of the animal, the antenna of the electronic identification means can be confused or shared with the antenna forming the transmission means 22 temperature readings. In this case, the first portion may define a single housing for receiving the "glass tag" 20 comprising the temperature sensor (s) 21, the transmission means 22 for the temperatures recorded, and the electronic identification means 23 for the animal.

According to another embodiment, at least a second housing is provided to receive the electronic identification means. In this case, an antenna of the electronic identification means is not necessarily common with the antenna forming the transmission means 22 of the temperature readings.

• une position de compression, dans laquelle cette deuxième portion est déformée afin de permettre l'insertion du dispositif dans le conduit auditif de l'animal ;
• une position de maintien, dans laquelle la deuxième portion tend à reprendre sa forme d'origine de façon à maintenir le dispositif dans le conduit auditif.

The second portion of the fastening device, in turn, forms spring. It is therefore able to take at least two positions, including:

• a compression position, in which this second portion is deformed to allow the insertion of the device into the auditory canal of the animal;
• a holding position, in which the second portion tends to return to its original shape so as to maintain the device in the auditory canal.

We now present, in relation with the FIGS. 3A to 7B , various embodiments of a device or a system for fixing a temperature sensor according to the invention, intended to be placed in the ear canal of an animal.

5.2 First example of a fastening device

According to a first example of a fixing device, illustrated in Figures 3A and 3B a fixing system 30 comprising a "glass tag" 20 as illustrated in FIG. figure 2 (Or more generally a temperature sensor and means for transmitting at least one temperature value), and a device for fixing a temperature sensor. Such a fixing device comprises a first portion 31 intended to bear on a first zone of the ear canal, defining at least one housing adapted to receive the "glass tag", and a second portion 32 forming a spring, intended to bear on a second area of the auditory canal, the first and second areas of the auditory canal being substantially diametrically opposed.

According to this first example, the first portion 31 defines a substantially cylindrical housing 311 whose height coincides with the first zone of the auditory canal, when the system 30 is placed inside thereof. An inlet orifice 3111 of the temperature sensor, located on a first base of the cylindrical housing 311, allows the insertion of the "glass tag" 20 in this housing 311. In order to facilitate the insertion of the "glass tag" 20 into the housing 311, there is also provided an air exhaust port 3112 near a second base of the cylindrical housing 311.

The second spring portion 32 is in the form of an ogival-shaped sheath, at least partially enveloping the first portion 31.

For example, such a sleeve has a longitudinal axis AA 'substantially parallel to a longitudinal axis BB' of the housing 311. In particular, the sleeve and the first portion are merged on a portion 321 intended to bear on the first zone of the auditory canal , at the height of housing 311.

The first end 322 of the sleeve, in the direction of introduction of the system into the auditory canal, has a rounded shape, so as to facilitate the insertion of the system 30 in the ear canal of the animal.

• une section courbe 323 ;
• une section inclinée 324 ;
• une section 325 sensiblement perpendiculaire à l'axe longitudinal AA' du fourreau.

The other end of the sheath has a recess notably making it possible to limit the quantity of material used for the manufacture of the fixing device, comprising:

• a curved section 323;
• an inclined section 324;
• a section 325 substantially perpendicular to the longitudinal axis AA 'of the sleeve.

In order to form a spring, the sheath has a flexible portion 326 intended to bear on the second zone of the auditory canal. Such a flexible portion 326 may be compressed upon insertion of the system into the animal's ear canal, and then released to seek to return to its original shape to maintain the system in the animal's ear canal. .

To do this, the sheath is for example made of flexible plastic material, such as polyurethane. The first portion 31 may also be made of polyurethane, in order to facilitate the forced insertion of the "glass tag" into the housing 311.

In addition, the sheath has at least one air inlet port 327 and at least one air outlet port 328 located on either side of the flexible portion 326 intended to bear on the second duct zone. auditory, so as not to alter the hearing ability of the animal, when the system is placed in the ear canal of the animal.

5.3 First embodiment

We now present, in relation to Figures 4A and 4B , a first embodiment of the invention.

We consider again a fastening system 40 comprising a "glass tag" 20 as illustrated in FIG. figure 2 (Or more generally a temperature sensor and means for transmitting at least one temperature value), and a device for fixing a temperature sensor.

Such a fixing device comprises a first portion 41 intended to bear on a first zone of the auditory canal, defining at least one housing adapted to receive the "glasstag" 20, and a second portion 42 forming a spring intended to bear on a second zone of the auditory canal, the first and second zones of the auditory canal being substantially diametrically opposed.

According to this first embodiment, the first portion 41 is a helically shaped element. This helical element defines a substantially cylindrical housing 411 whose height coincides with the first zone of the auditory canal, when the system 40 is placed inside thereof. A 4111 input port of the temperature sensor, located on a first base of the substantially cylindrical housing 411, allows the insertion of the "glass tag" 20 in this housing 411. To facilitate the insertion of the "glass tag" 20 in the housing 411, it is also provided a plurality of orifices 4112 d exhaust air near a second base of the substantially cylindrical housing 411, allowing the escape of air during the insertion of the "glass tag" in the housing 411.

The second portion 42 forming a spring is in the form of a spring blade, connected to the helical element. This leaf spring allows easy insertion of the system 40 in the ear canal, when in its compression position and keeps the system 40 in the ear canal when it tends to return to its original shape.

For example, the leaf spring and the helical element can be formed in one piece, from a metal or plastic rod that is wound to form the first portion 41, and bend to form the second portion 42 .

5.4 Second embodiment

We now present, in relation to Figures 5A and 5B , a second embodiment of the invention.

Consider again a fastening system 50 comprising a "glass tag" 20 as illustrated in FIG. figure 2 (Or more generally a temperature sensor and means for transmitting at least one temperature value), and a device for fixing a temperature sensor.

Such a fixing device comprises a first portion 51 defining a housing adapted to receive the "glass tag" 20, and a second portion 52 intended to bear on at least two areas of the auditory canal, for example three zones, located substantially equal. distances in the auditory canal.

According to this second embodiment, the first portion 51 is a helically shaped element, defining a substantially cylindrical housing 511.

An inlet 5111 of the temperature sensor inlet, located on a first base of the substantially cylindrical housing 511, allows the insertion of the "glass tag" 20 in this housing 511. In order to facilitate the insertion of the "glass tag" 20 into the housing 511, there is also provided a plurality of orifices 5112 exhaust air near a second base of the substantially cylindrical housing 511, allowing the escape of air during the insertion of the "glass tag In dwelling 511.

The second portion 52 forming a spring is in the form of a plurality of spring blades, for example three blades, connected to the helical element. These spring blades allow easy insertion of the system 50 into the auditory canal, when they are located in their compression position, and keep the system 50 in the ear canal when they tend to return to their original shape.

For example, the helical element is formed of three helicoids. A spring blade and a helicoid can then be formed in one piece, from a metal rod or plastic that is just wound to form the helicoid, and bend to form the leaf spring. The three sets "leaf spring / helicoid" are then assembled to close the housing 511.

5.5 Another example of a fastening device

We now present, in relation to Figures 6A and 6B another example of a fixing device. Consider again an attachment system 60 comprising a "glass tag" 20 as illustrated in FIG. figure 2 (Or more generally a temperature sensor and means for transmitting at least one temperature value), and a device for fixing a temperature sensor.

Such a fixing device comprises a first portion 61 intended to bear on a first zone of the auditory canal, defining a housing adapted to receive the "glass tag" 20, and a second portion 62 intended to bear on at least a second zone of the auditory canal.

According to this example, the first portion 61 defines a substantially cylindrical housing 611 whose height coincides with the first zone of the auditory canal, when the system 60 is placed inside thereof. An inlet 6111 of the temperature sensor inlet, located on a first base of the cylindrical housing 611, allows the insertion of the "glass tag" 20 in this housing 611. In order to facilitate the insertion of the "glass tag" 20 into the 611 housing, it is also provided at least one air exhaust port 6112 near a second base of the cylindrical housing 611, allowing the escape of air during the insertion of the "glass tag" 20 in housing 611.

The second portion 62 forming a spring comprises a flexible plate, for example of substantially rectangular shape, connected by one of its sides 621 to the first portion 61.

For example, such a plate is made of flexible plastic with memory effect, or is a metal blade overmolded with polyurethane. The first portion 61 may also be made of polyurethane, in order to facilitate the forced insertion of the "glass tag" into the housing 611.

In its compression position, the flexible plate is at least partially wound around the first portion 61, facilitating the insertion of the system 60 into the auditory canal. In the holding position, the flexible plate is at least partially unrolled. In this way, the fixation device can be supported on a first zone of the auditory canal at the level of the first portion 61, and on a second area of the ear canal at the side 622 opposite the side 621 connected to the first portion 61.

5.6 Another example of a fastening device

We now present, in relation with the Figures 7A and 7B another example of a fixing device. Consider again a fastening system 70 comprising a "glass tag" 20 as illustrated in FIG. figure 2 (Or more generally a temperature sensor and means for transmitting at least one temperature value), and a device for fixing a temperature sensor. Such a fixing device comprises a first portion 71 defining at least one housing adapted to receive the "glass tag" 20, and a second portion 72 forming a spring, intended to bear on at least two areas of the auditory canal, substantially diametrically opposed.

According to this example, the first portion 71 and second portion 72 comprise a helical element, formed of at least one turn of a first diameter, defining a substantially cylindrical housing 711, and at least one turn of a second diameter, forming a spring, the second diameter being greater than the first diameter.

An inlet 7111 of the temperature sensor inlet, located on a first base of the substantially cylindrical housing 711, allows the insertion of the "glass tag" 20 into this housing 711. In order to facilitate the insertion of the "glass tag" 20 into the housing 711, there is also provided a plurality of orifices 7112 air exhaust near a second base of the substantially cylindrical housing 711.

The first portion 71 is formed of at least one turn of a first diameter, connected to the second portion 72 formed of at least one turn of a second diameter, greater than the first diameter.

The turns of the second spring portion 72 may be compressed in the direction illustrated by the arrows C in the compression position, allowing easy insertion of the system 70 into the ear canal. These turns of the second portion 72 keep the system 70 in the ear canal when they tend to return to their original shape.

For example, the helicoidal element formed of the turns of first diameter and second diameter may be formed in one piece, from a metal or plastic rod that is wound up according to the first diameter to form the first portion 71, and wind up to the second diameter to form the second portion 72.

5.7 Variants

In the embodiments presented above, it has been considered that the temperature sensor or sensors, the means for transmitting at least one temperature reading, and possibly the electronic means of identification, were inserted in a "glass tag". Of course, this is only an example of implementation, and the temperature sensor or sensors, the means for transmitting at least one temperature reading, and possibly the electronic means of identification can take any other form. It is noted that the shape of the housing of the first portion of the fixing device must be adapted to receive at least one or more temperature sensors and the transmission means of at least one temperature reading.

In addition, the fixing device may provide a marking surface, for example, on the flexible plate, on the sheath, on the spring blade, on the helical elements, etc. Thus, visual means for identifying the animal may also be added to the fixing device, instead of or in addition to electronic identification means. Such visual and / or electronic identification means carry an identifier of the animal (identification number for example). This marking can be done by any known means (printing, laser engraving, inkjet, etc.).

For the establishment of the fastening system, one can use a clamp type tool for compressing the second portion to bring it into its compression position. The fixation device of the fixation system can also be placed in the compression position in an injector, such as a syringe, and released into the ear canal. The second portion then seeks to return to its original form, which allows to permanently fix the system in the auditory canal. The fixation system can also be forcibly inserted into the ear canal.

It should be noted to this effect that the total height of the fixation systems 30, 40, 50, 60 and 70, before placement in the auditory canal, is at least equal to the diameter of the auditory canal of the animal concerned, so that ensure proper maintenance of the system in the ear canal and avoid unintentional extraction. The dimensions of the fixing device are adapted to the dimensions of the auditory canal of the animal concerned, and are therefore variable from one animal category to another. For example, it is considered that the diameter of the auditory canal of cattle is of the order of 8 mm. The diameter of the fixing device, in the initial state, may be of the order of 9 mm. Thus, in the compression position, the second spring portion must be compressed to reduce the diameter / height of the fastener to a dimension less than 8 mm, and in the holding position, the second portion tends to return to its shape. of origin, and is blocked by the walls of the auditory canal.

Furthermore, in order to facilitate removal of the system from the animal's auditory canal, the fixation device may be equipped with withdrawal means, such as for example a string, a notch adapted to cooperate with a specific tool, etc.

Claims (10)

1. Device for affixing at least one temperature sensor to an animal, to be placed in an animal's auditory canal,
   comprising:

   - a first portion (41, 51) defining at least one housing (411, 511) configured to receive at least one temperature sensor and means for transmitting at least one temperature value, and,

   - a second portion (42, 52) forming a spring,

   said first portion and/or said second portion being configured to take support on at least two distinct zones of said auditory canal,
   characterized in that said second portion (42, 52) comprises at least one spring leaf and in that said first portion (41, 51) is a helicoidal element connected to said at least one spring leaf.
2. Device according to claim 1, characterized in that said second portion (42, 52) is configured to take at least two positions, a compressed position in which said second portion is deformed so as to enable the insertion of said device into said auditory canal, and a holding position in which said second portion substantially resumes its original shape so as to hold said device fixedly attached to said auditory canal.
3. Device according to any one of the claims 1 to 2, characterized in that said housing comprises an entry hole (4111, 5111) for said temperature sensor and at least one air vent hole (4112, 5112).
4. Device according to any one of the claims 1 to 3, characterized in that said first portion (41) is configured to take support on a first zone of said auditory canal and in that said second portion (42) is configured to take support on a second zone of said auditory canal.
5. Device according to claim 4, characterized in that said first portion defines a cylindrical housing (411), a height of which is configured to coincide with said first support zone of said auditory canal when said device is placed in said auditory canal.
6. Device according to any one of the claims 1 to 5, characterized in that it also comprises a housing capable of receiving electronic means for identifying said animal.
7. Device according to any one of the claims 1 to 6, characterized in that it comprises a marking surface for an identifier of said animal.
8. Device according to any one of the claims 1 to 7, characterized in that it comprises means for removing said device.
9. System for affixing at least one temperature sensor to an animal, to be placed in an animal's auditory canal,
   characterized in that it comprises:

   - an affixing device according to any one of claims 1 to 8;

   - at least one temperature sensor (21) and means for transmitting (22) at least one temperature value inserted into a housing of the affixing device.
10. System for affixing according to claim 9, characterized in that it also comprises electronic means (23) for identifying said animal inserted into said housing or into another housing of the affixing device.

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