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EP0015250B1 - Apparatus for signalling the beginning of parturition for mammalian - Google Patents

Apparatus for signalling the beginning of parturition for mammalian Download PDF

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Publication number
EP0015250B1
EP0015250B1 EP80870003A EP80870003A EP0015250B1 EP 0015250 B1 EP0015250 B1 EP 0015250B1 EP 80870003 A EP80870003 A EP 80870003A EP 80870003 A EP80870003 A EP 80870003A EP 0015250 B1 EP0015250 B1 EP 0015250B1
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EP
European Patent Office
Prior art keywords
container
beast
parturition
vagina
alarm
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Expired
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EP80870003A
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German (de)
French (fr)
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EP0015250A1 (en
Inventor
André A. Charlier
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Individual
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Individual
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Priority to AT80870003T priority Critical patent/ATE6199T1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D17/00—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals
    • A61D17/008—Devices for indicating trouble during labour of animals ; Methods or instruments for detecting pregnancy-related states of animals for detecting birth of animals, e.g. parturition alarm

Definitions

  • the present invention relates to a device for detecting by signaling the moment when an animal, a cattle or a horse for example, is about to give birth.
  • German patent application DE-A-2809606 discloses a warning of the start of parturition which comprises a buffer placed in the vagina of the beast and intended to transmit to a detector the thrust of the allantoic and amnial pockets when these penetrate into the vagina at the start of parturition.
  • This device does not, however, indicate the exact moment when the beast loses water from its allantoic and amnial pockets. This moment is however very important for certain cattle, for example, which must be delivered on time, that is to say very shortly after the rupture of the pockets under penalty of running the risk of losing the animal and its young. Detecting the moment of rupture of the pockets is also very important for certain animal species, for example foal cows which cannot calve or in case the calf does not show up.
  • an apparatus comprising a urinary type probe, intended to be introduced between the lips of the vulva of the beast into its vagina so as to collect the water from the allantoic and amnial pockets.
  • This probe contains two electrodes which are wetted by water during the rupture of the pockets and this results in between the electrodes a variation in electrical resistance which causes an alarm to be triggered. It was found that this device produces nuisance alarms probably due to variations in the humidity or the presence of phlegm rejected by the animal. On the other hand, if this device aims to detect the rupture of the pockets of water, it does not make it possible to subsequently detect the effective start of parturition.
  • the problem which the invention aims to solve is to provide a device capable of detecting and signaling in a safe manner and without nuisance alarms when a beast is about to give birth and which, moreover, is capable of monitoring the evolution subsequent to parturition.
  • the invention solves the problem by a simple construction device specially designed to detect and signal the moment when an animal loses water as well as the moment when effective birthing begins.
  • a warning of the start of parturition intended to be attached to the back of a beast characterized in that it comprises a closed container intended to collect the water from the pockets of the beast, a pipe connected to the part upper part of the container so that its free end can be introduced into the vagina of the beast and a pressure variation detector communicating with the interior volume of the container, at the bottom of the latter, so as to respond to an increase pressure in the container volume and to produce an electrical signal for the control of an alarm device.
  • the advantage of the horn according to the invention is that it detects parturition with safety and precision from the start, which makes it possible to control the duration of preparation for the opening of the neck of the matrix, and that it signals then the start of the second phase of the mechanism, which provides total security aimed at completely reducing the risk of loss of high-value animals.
  • Another advantage of the device according to the invention is that it allows birthing, even with the device in place on the animal.
  • FIG. 1 shows an embodiment of the device according to the invention placed on a cow 1.
  • the device essentially comprises a closed container 2 attached to a support 3 kept suspended opposite the vagina of the beast 1 and on which is also mounted a movable stop 4, a pipe 5 having one end intended to be introduced into the vagina of the beast and a detector 6 connected to an alarm device 7 placed on the back of the beast 1.
  • the support 3 is here constituted by a grid suspended from the animal and which bears against the rear of the latter by means of two arms 39.
  • the stop 4 is mounted on rods 43 fixed on the support 3 and which allow to move in translation relative to the support 3.
  • Helical springs 44 surround the rods 43 and bring the stop 44 in normal position, the stop 4 being retained at the end of the rods 43 by stop bolts 45 screwed on the threaded ends of the guide rods. Any pressure against the stop 4 therefore results in a translation of this stop 4 parallel to itself to the support 3, against the action of the coil springs 44.
  • a closed container 2 intended to collect the water from the allantoic and amnial pockets.
  • This container can have any shape and be made of any material.
  • a hose 5 for example of rubber, extending so that its end free can be introduced into the vagina of the beast beyond the urethra.
  • the container 2 thus collects the calving water without collecting the urine.
  • the length of the pipe 5 can for example be from 15 to 28 cm and its diameter can for example be from 1 to 3 cm depending on the animals to which it must be adapted.
  • the container 2 must have a sufficient volume to ensure safe and stable operation, for example of the order of 300 to 500 cm 3.
  • the latter therefore detects in this device any increase in pressure in the container 2 and can therefore trigger the alarm device 7.
  • This may be a signaling device or any alarm, an acoustic device for example or even a small radio frequency transmitter which allows the livestock to be monitored from a greater distance.
  • the pipe 5 is formed with an orifice 51 in its wall in order to allow the introduction of the calving water when the mouth 52 of the pipe 5 is obstructed.
  • the device according to the invention can be fixed to the animal by any system of splints.
  • the support 3 is suspended from a ring 31 fixed to an apron 32 having the shape of the back of the beast so as to be able to be placed there.
  • the apron 32 is fixed on a cover 30.
  • the opening of the ring 31 leaves a passage for the tail of the beast.
  • the support 3 is connected to the ring 31 by means of a double arm 33, the ends of which are clamped in the collars 34 secured to the support by the screws 35. In this way, the spacing of the ring 31 by support plane 3 can be set for each animal.
  • the support 3 is held firmly in place by straps 36 enclosing the buttocks 11 of the animal and attached to the cover 30. Thanks to this mode of suspension, the animal can lie on its side and the device is always placed in the extension of the back, in position facing the vagina. In this way, in the event of an unforeseen event, the animal can give birth, even with the device in place.
  • the container 2 has a draining means. To evacuate the liquid collected after the water pockets have ruptured.
  • This means consists for example of a hole closed by a cover 21. By removing this cover 21 after the appearance of an alarm, the alarm signal is cut off and the device is then ready to signal the start of the second parturition mechanism phase: effective parturition. This moment is detected by the movable stop 4 as we will see.
  • the movable stop 4 is secured to an arm 41, the free end of which actuates the arm of a contactor 9 fixed to the wall of the container 2.
  • the contactor 9 is connected by an electrical cord 91 in the electrical circuit of the device. alarm 7.
  • the feet or possibly the head of the young cross the vagina of the animal 1 and immediately come into contact with the stopper 4.
  • the stopper 4 is pushed back to the support 3 and the arm 41, driven with the stop 4, then actuates the contactor 9 which triggers the alarm device.
  • the horn as described therefore operates from the preparatory phase to parturition, that is to say from the rupture of the allantoic and amnial pockets and it monitors the development of parturition.
  • This device thus makes it possible to reliably detect the start of basing, even if it is an unforeseen or abnormal situation, which makes it possible to avoid losses of costly livestock.
  • Figs. 4 and 5 illustrate a second example of embodiment of the device aver - weaver according to the invention.
  • the same essential components can be distinguished as in the first example: a container 2, a movable stop 4, a pipe 5, a pressure variation detector 6, a contactor 9.
  • the detector 6 is here carried by the container 2 just like the contactor 9.
  • the electric cable 61 connects the detector output to the alarm device (not shown).
  • the movable stop 4 is pivotally mounted on the arm of the contactor 9.
  • the stop 4 is fixed to this arm of the contactor by means of a flexible arm 42 in the pivoting plane so as to allow the beast to put if necessary with the device in place.
  • the fixing means for suspending the apparatus on the rump of the beast are here constituted by fasteners 37 and 38 intended to be fixed to splints surrounding the tail and the buttocks of the beast and held in place by a chest belt by example.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Zoology (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Wood Science & Technology (AREA)
  • Animal Husbandry (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pregnancy & Childbirth (AREA)
  • Public Health (AREA)
  • Catching Or Destruction (AREA)
  • Endoscopes (AREA)
  • Safety Valves (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

A device to detect and signal the moment when a beast prepares to give birth. A container having fastening means for attachment on the behind of the beast is connected at its upper part to a tube extending so that its free end can be introduced into the vagina of the beast beyond the urethra. In the lower part of the container there emerges a tube of small diameter which is connected to a pressure sensor connected in the electrical circuit of an alarm device for producing an actuating signal for said alarm device in response to an increase of pressure in the container. In this way, an alarm is given as soon as from the breaking of the allantoic and amniotic sacs of the beast. The device further is arranged to monitor the subsequent development of the dropping.

Description

La présente invention concerne un dispositif pour détecter en signaler le moment où une bête, un bovin ou un cheval par exemple, s'apprête à mettre bas.The present invention relates to a device for detecting by signaling the moment when an animal, a cattle or a horse for example, is about to give birth.

Par la demande de brevet allemand DE-A-2809606 on connaît un avertisseur de début de parturition qui comprend un tampon placé dans le vagin de la bête et destiné à transmettre à un détecteur la poussée des poches allantoïde et amnios lorsque celles-ci pénètrant dans le vagin au début de la parturition. Cet appareil ne signale cependant pas le moment exact où la bête perd les eaux de ses poches allantoïde et amnios. Ce moment est pourtant très important pour certains bovins, par exemple, qui doivent être délivrés à temps c'est-à-dire très peu de temps après la rupture des poches sous peine de courir le risque de perdre la bête et son petit. Détecter le moment de la rupture des poches est également très important pour certaines espèces animales, par exemple les vaches cul de poulain qui ne peuvent vêler ou dans le cas où le veau ne se présente pas.The German patent application DE-A-2809606 discloses a warning of the start of parturition which comprises a buffer placed in the vagina of the beast and intended to transmit to a detector the thrust of the allantoic and amnial pockets when these penetrate into the vagina at the start of parturition. This device does not, however, indicate the exact moment when the beast loses water from its allantoic and amnial pockets. This moment is however very important for certain cattle, for example, which must be delivered on time, that is to say very shortly after the rupture of the pockets under penalty of running the risk of losing the animal and its young. Detecting the moment of rupture of the pockets is also very important for certain animal species, for example foal cows which cannot calve or in case the calf does not show up.

Pour détecter la rupture des poches des eaux, on connaît une appareil comportant une sonde type urinaire, destinée à être introduite entre les lèvres de la vulve de la bête jusque dans son vagin de manière à recueillir les eaux des poches allantoïde et amnios. Cette sonde contient deux électrodes qui se trouvent mouillées par les eaux lors de la rupture des poches et il en résulte entre les électrodes une variation de résistance électrique qui provoque de déclenchement d'une alarme. Il a été constaté que cet appareil produit des alarmes intempestives dues vraisemblablement à des variations de l'état l'humidité ou à la présence de mucosités rejetées par la bête. D'autre part, si cet appareil vise bien à détecter la rupture des poches des eaux, il ne permet pas de détecter ultérieurement le début effectif de la mise bas.To detect the rupture of the pockets of water, there is known an apparatus comprising a urinary type probe, intended to be introduced between the lips of the vulva of the beast into its vagina so as to collect the water from the allantoic and amnial pockets. This probe contains two electrodes which are wetted by water during the rupture of the pockets and this results in between the electrodes a variation in electrical resistance which causes an alarm to be triggered. It was found that this device produces nuisance alarms probably due to variations in the humidity or the presence of phlegm rejected by the animal. On the other hand, if this device aims to detect the rupture of the pockets of water, it does not make it possible to subsequently detect the effective start of parturition.

Le problème que vise à résoudre l'invention est de procurer un dispositif capable de détecter et signaler de façon sûre et sans alarmes intempestives le moment où une bête s'apprête à mettre bas et qui, de surcroît, est capable de surveiller l'évolution ultérieure de la mise bas.The problem which the invention aims to solve is to provide a device capable of detecting and signaling in a safe manner and without nuisance alarms when a beast is about to give birth and which, moreover, is capable of monitoring the evolution subsequent to parturition.

L'invention résout le problème par un dispositif de construction simple spécialement étudié pour détecter et signaler le moment où une bête perd les eaux ainsi que le moment où débute effectivement la mise bas. Cet objectif est atteint par un avertisseur de début de parturition destiné à être attaché sur le derrière d'une bête, caractérisé en ce qu'il comprend un récipient fermé destiné à, collecter les eaux des poches de la bête un tuyau raccordé à la partie supérieure du récipient de telle sorte que son extrêmite libre puisse être introduite dans le vagin de la bête et un détecteur de variation de pression communiquant avec le volume intérieur du récipient, à la partie inférieure de celui-ci, de maniére à répondre à une augmentation de pression dans le volume du récipient et à produire un signal électrique pour la commande d'un dispositif d'alarme.The invention solves the problem by a simple construction device specially designed to detect and signal the moment when an animal loses water as well as the moment when effective birthing begins. This objective is achieved by a warning of the start of parturition intended to be attached to the back of a beast, characterized in that it comprises a closed container intended to collect the water from the pockets of the beast, a pipe connected to the part upper part of the container so that its free end can be introduced into the vagina of the beast and a pressure variation detector communicating with the interior volume of the container, at the bottom of the latter, so as to respond to an increase pressure in the container volume and to produce an electrical signal for the control of an alarm device.

L'avantage de l'avertisseur selon l'invention est qu'il détecte la parturition avec sécurité et précision dès son début, ce qui permet de contrôler la durée de préparation de l'ouverture du col de la matrice, et qu'il signale ensuite le début de la seconde phase du mécanisme, ce qui assure une sécurité totale visant à réduire totalement les risques de pertes de bêtes de grande valeur. Un autre avantage de l'appareil suivant l'invention est qu'il permet la mise bas, même avec l'appareil en place sur la bête.The advantage of the horn according to the invention is that it detects parturition with safety and precision from the start, which makes it possible to control the duration of preparation for the opening of the neck of the matrix, and that it signals then the start of the second phase of the mechanism, which provides total security aimed at completely reducing the risk of loss of high-value animals. Another advantage of the device according to the invention is that it allows birthing, even with the device in place on the animal.

L'invention est exposée dans ce qui suit avec référence aux dessins ci-joints dans lesquels:

  • -la fig. 1 représente un dispositif selon l'invention mis en place sur une vache,
  • -la fig. 2 représente une vue de face du dispositif avertisseur de la fig. 1,
  • -la figure 3 est une vue de côté du dispositif montré à la fig. 2;
  • -la fig. 4 est une vue de face d'une variante du dispositif selon l'invention;
  • -la fig. 5 est une vue de côté du dispositif de la fig. 4.
The invention is set out in the following with reference to the attached drawings in which:
  • - fig. 1 represents a device according to the invention installed on a cow,
  • - fig. 2 shows a front view of the warning device of FIG. 1,
  • FIG. 3 is a side view of the device shown in FIG. 2;
  • - fig. 4 is a front view of a variant of the device according to the invention;
  • - fig. 5 is a side view of the device of FIG. 4.

Sur les différents dessins les mêmes références numériques désignent des organes identiques ou ayant des fonctions équivalentes.In the various drawings, the same reference numerals designate identical members or having equivalent functions.

Sur la fig. 1 on voit un mode d'exécution du dispositif selon l'invention mis en place sur une vache 1. Le dispositif comprend essentiellement un récipient fermé 2 attaché à un support 3 maintenu suspendu en face du vagin de la bête 1 et sur lequel est également montée une butée mobile 4, un tuyau 5 ayant une extrémité destinée à être introduite dans le vagin de la bête et un détecteur 6 connecté à un dispositif d'alarme 7 placé sur le dos de la bête 1.In fig. 1 shows an embodiment of the device according to the invention placed on a cow 1. The device essentially comprises a closed container 2 attached to a support 3 kept suspended opposite the vagina of the beast 1 and on which is also mounted a movable stop 4, a pipe 5 having one end intended to be introduced into the vagina of the beast and a detector 6 connected to an alarm device 7 placed on the back of the beast 1.

Le support 3 est ici constitué par une grille suspendue à la bête et qui prend appui contre le derrière de celle-ci par l'intermédiaire de deux bras 39. La butée 4 est montée sur des tiges 43 fixées sur le support 3 et qui lui permettent de se déplacer par translation par rapport au support 3. Des ressorts hélicoïdaux 44 entourent les tiges 43 et portent la butée 44 en position normale, la butée 4 étant retenue à l'extrémité des tiges 43 par des boulons d'arrêt 45 vissés sur les extrémités filetées des tiges- guides. Toute pression contre la butée 4 se traduit donc par une translation de cette butée 4 parallèlement à elle-même au support 3, à l'encontre de l'action des ressorts hélicoïdaux 44.The support 3 is here constituted by a grid suspended from the animal and which bears against the rear of the latter by means of two arms 39. The stop 4 is mounted on rods 43 fixed on the support 3 and which allow to move in translation relative to the support 3. Helical springs 44 surround the rods 43 and bring the stop 44 in normal position, the stop 4 being retained at the end of the rods 43 by stop bolts 45 screwed on the threaded ends of the guide rods. Any pressure against the stop 4 therefore results in a translation of this stop 4 parallel to itself to the support 3, against the action of the coil springs 44.

Sur le support 3 est attaché un récipient fermé 2 destiné à recueillir les eaux des poches allantoide et amnios. Ce récipient peut avoir une forme quelconque et être constitué d'un matériau quelconque. A la partie supérieure du récipient 2 est raccordé un tuyau 5, en caoutchouc par exemple, s'étendant en sorte que son extrémité libre puisse être introduite dans le vagin de la bête jusqu'au delà de l'urêtre. Le récipient 2 recueille ainsi les eaux de vêlage sans recueillir les urines. La longueur du tuyau 5 peut par exemple être de 15 à 28 cm et son diamètre peut par exemple être de 1 à 3 cm selon les bêtes auxquelles il doit être adapté. Le récipient 2 doit avoir un volume suffisant pour assurer un fonctionnement sûr et stable, par exemple de l'ordre de 300 à 500 cm3. Il a été constaté en effet qu'une bête peut rejeter jusqu'à 250 cm3 environ de mucosités en une nuit, ce qui empêcherait un récipient de volume insuffisant, de recueillir les eaux des poches et donc de signaler la rupture de celles-ci. A la partie inférieure du récipient 2 débouche un tuyau de faible diamètre 8, en caoutchouc par exemple. L'autre extrémité du tuyau 8 est connectée au détecteur de variation de pression 6 monté dans le circuit électrique du dispositif d'alarme 7 placé sur le dos de la bête. Le fonctionnement du dispositif composé des éléments 2, 5 et 6 est le suivant. Lorsque commencent les premières contractions de la bête, l'air rejeté à travers le tuyau 5 produit dans le récipient 2 une augmentation de pression qui se trouve transmise au détecteur 6 par l'intermédiaire du tuyau 8. Les premières eaux recueillies dans le récipient 2, de même, produisent une pression qui actionne le détecteur 6. Celui-ci détecte donc dans ce dispositif toute augmentation de pression dans le récipient 2 et peut donc alors déclencher le dispositif d'alarme 7. Celui-ci peut être un dispositif de signalisation ou d'alarme quelconque, un dispositif acoustique par exemple ou même un petit émetteur à fréquence radioélectrique qui permet de surveiller le cheptel à plus grande distance.On the support 3 is attached a closed container 2 intended to collect the water from the allantoic and amnial pockets. This container can have any shape and be made of any material. At the upper part of the container 2 is connected a hose 5, for example of rubber, extending so that its end free can be introduced into the vagina of the beast beyond the urethra. The container 2 thus collects the calving water without collecting the urine. The length of the pipe 5 can for example be from 15 to 28 cm and its diameter can for example be from 1 to 3 cm depending on the animals to which it must be adapted. The container 2 must have a sufficient volume to ensure safe and stable operation, for example of the order of 300 to 500 cm 3. It has in fact been observed that an animal can reject up to approximately 250 cm 3 of mucus overnight, which would prevent a container of insufficient volume, to collect the water from the pockets and therefore to signal the rupture of the latter. At the bottom of the container 2 opens a small diameter pipe 8, for example of rubber. The other end of the pipe 8 is connected to the pressure variation detector 6 mounted in the electrical circuit of the alarm device 7 placed on the back of the animal. The operation of the device composed of elements 2, 5 and 6 is as follows. When the first contractions of the beast begin, the air rejected through the pipe 5 produces in the container 2 an increase in pressure which is transmitted to the detector 6 via the pipe 8. The first water collected in the container 2 , likewise, produce a pressure which activates the detector 6. The latter therefore detects in this device any increase in pressure in the container 2 and can therefore trigger the alarm device 7. This may be a signaling device or any alarm, an acoustic device for example or even a small radio frequency transmitter which allows the livestock to be monitored from a greater distance.

Le tuyau 5 est formé avec un orifice 51 dans sa paroi afin de laisser s'introduire les eaux de vêlage lorsque l'embouchure 52 du tuyau 5 est obstruée.The pipe 5 is formed with an orifice 51 in its wall in order to allow the introduction of the calving water when the mouth 52 of the pipe 5 is obstructed.

Le dispositif selon l'invention peut être fixé sur la bête par un système d'attelles quelconque. Dans le mode de réalisation illustré aux figs. 1 à 3, le support 3 est suspendu à un anneau 31 fixé à un tablier 32 ayant la forme du dos de la bête de manière à pouvoir y être mis en place. Le tablier 32 est fixé sur une couverture 30. L'ouverture de l'anneau 31 laisse un passage pour la queue de la bête. Le support 3 est relié à l'anneau 31 par l'intermédiaire d'un bras double 33 dont les extrémités sont serrées dans les colliers 34 solidaires du support par les vis 35. De la sorte, l'écartement de l'anneau 31 par rapport au plan du support 3 peut être réglé pour chaque bête. Le support 3 est maintenu fermement en place par des sangles 36 enserrant les fesses 11 de la bête et attachées à la couverture 30. Grâce à ce mode de suspension, la bête peut se coucher sur le côté et l'appareil se place toujours dans le prolongement du dos, en position face au vagin. De cette façon, en cas d'imprévu, la bête peut mettre bas, même avec l'appareil en place.The device according to the invention can be fixed to the animal by any system of splints. In the embodiment illustrated in figs. 1 to 3, the support 3 is suspended from a ring 31 fixed to an apron 32 having the shape of the back of the beast so as to be able to be placed there. The apron 32 is fixed on a cover 30. The opening of the ring 31 leaves a passage for the tail of the beast. The support 3 is connected to the ring 31 by means of a double arm 33, the ends of which are clamped in the collars 34 secured to the support by the screws 35. In this way, the spacing of the ring 31 by support plane 3 can be set for each animal. The support 3 is held firmly in place by straps 36 enclosing the buttocks 11 of the animal and attached to the cover 30. Thanks to this mode of suspension, the animal can lie on its side and the device is always placed in the extension of the back, in position facing the vagina. In this way, in the event of an unforeseen event, the animal can give birth, even with the device in place.

Le récipient 2 comporte un moyen de vidange.pour évacuer le liquide recueilli après la rupture des poches des eaux. Ce moyen consiste par exemple en un trou obturé par un couvercle 21. En ôtant ce couvercle 21 après l'apparition d'une alarme, le signal d'alarme se trouve coupé et l'appareil est alors prêt à signaler le début de la seconde phase du mécanisme de la parturition: la mise bas effective. Ce moment se trouve détecté par la butée mobile 4 comme on va le voir.The container 2 has a draining means. To evacuate the liquid collected after the water pockets have ruptured. This means consists for example of a hole closed by a cover 21. By removing this cover 21 after the appearance of an alarm, the alarm signal is cut off and the device is then ready to signal the start of the second parturition mechanism phase: effective parturition. This moment is detected by the movable stop 4 as we will see.

La butée mobile 4 est solidaire d'un bras 41 dont l'extrémité libre actionne le bras d'un contacteur 9 fixé sur la paroi du récipient 2. Le contacteur 9 est connecté par un cordon électrique 91 dans le circuit électrique du dispositif d'alarme 7.The movable stop 4 is secured to an arm 41, the free end of which actuates the arm of a contactor 9 fixed to the wall of the container 2. The contactor 9 is connected by an electrical cord 91 in the electrical circuit of the device. alarm 7.

Au moment où commence la mise bas, les pieds ou éventuellement la tête du petit traversent le vagin de la bête 1 et viennent aussitôt en contact avec la butée 4. Sous l'effet de la poussée du petit en train de naître, la butée 4 est repoussée vers le support 3 et le bras 41, entraîné avec la butée 4, vient alors actionner le contacteur 9 qui déclenche le dispositif d'alarme.When the whelping begins, the feet or possibly the head of the young cross the vagina of the animal 1 and immediately come into contact with the stopper 4. Under the effect of the push of the baby being born, the stopper 4 is pushed back to the support 3 and the arm 41, driven with the stop 4, then actuates the contactor 9 which triggers the alarm device.

L'avertisseur tel que décrit fonctionne donc dès la phase préparatoire à la mise bas, c'est-à-dire dès la rupture des poches allantoïde et amnios et il surveille l'évolution de la mise bas. Cet appareil permet ainsi de détecter de façon sûre le début de la mise base, même s'il s'agit d'une situation imprévue ou anormale, ce qui permet d'éviter des pertes de cheptel coûteux.The horn as described therefore operates from the preparatory phase to parturition, that is to say from the rupture of the allantoic and amnial pockets and it monitors the development of parturition. This device thus makes it possible to reliably detect the start of basing, even if it is an unforeseen or abnormal situation, which makes it possible to avoid losses of costly livestock.

Les figs. 4 et 5 illustrent un deuxième exemple de mode d'exécution du dispositif aver- tisseur selon l'invention. Dans cet exemple on peut distinguer les mêmes organes essentiels que dans le premier exemple: un récipient 2, une butée mobile 4, un tuyau 5, un détecteur de variation de pression 6, un contacteur 9. Le détecteur 6 est ici porté par le récipient 2 tout comme le contacteur 9. Le câble électrique 61 raccorde la sortie du détecteur au dispositif d'alarme (non montré).Figs. 4 and 5 illustrate a second example of embodiment of the device aver - weaver according to the invention. In this example, the same essential components can be distinguished as in the first example: a container 2, a movable stop 4, a pipe 5, a pressure variation detector 6, a contactor 9. The detector 6 is here carried by the container 2 just like the contactor 9. The electric cable 61 connects the detector output to the alarm device (not shown).

La butée mobile 4 est montée à pivotement sur le bras du contacteur 9. La butée 4 est fixée .à ce bras du contacteur par l'intermédiaire d'un bras flexible 42 dans le plan de pivotement de manière à permettre à la bête de mettre bas le cas échéant avec l'appareil mis en place. Les moyens de fixation pour suspendre l'appareil sur la croupe de la bête sont ici constitués par des attaches 37 et 38 destinées à être fixées à des attelles entourant la queue et les fesses de la bête et maintenues en place par une ceinture de poitrail par exemple.The movable stop 4 is pivotally mounted on the arm of the contactor 9. The stop 4 is fixed to this arm of the contactor by means of a flexible arm 42 in the pivoting plane so as to allow the beast to put if necessary with the device in place. The fixing means for suspending the apparatus on the rump of the beast are here constituted by fasteners 37 and 38 intended to be fixed to splints surrounding the tail and the buttocks of the beast and held in place by a chest belt by example.

Claims (5)

1. Apparatus for signalling the beginning of parturition for mammalian intended to be attached to the behind of a beast, characterized by comprising a closed container (2) to collect the dropping waters from the water sacs of the beast, a tube (5) connected to the upper part of the container (2) so that its free end can be introduced into the vagina of the beast, and a pressure sensor (6) in communication with the inside volume of the container (2) in the lower part of said container, so as to respond to an increase of pressure in the volume of the container and to generate an electrical signal for the control of an alarm device.
2. Apparatus according to claim 1, wherein the tube (5) has a hole (51) in its wall.
3. Apparatus according to claim 1, wherein the container (2) has an emptying means (21).
4. Apparatus according to claim 1, further comprising contactor means (9) fitted to the container (2), the moving element of said contactor means being integral with a moving abutment (4) mounted so as to be arranged opposite the vagina of the beast.
5. Apparatus according to claim 4, wherein the moving element of said contactor means (9) is connected to said moving abutment (4) by means of an arm (42) pivoting in a vertical plane, said arm being flexible in the pivoting plane.
EP80870003A 1979-01-18 1980-01-17 Apparatus for signalling the beginning of parturition for mammalian Expired EP0015250B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80870003T ATE6199T1 (en) 1979-01-18 1980-01-17 WARNING DEVICE FOR THE BEGINNING OF LABOR FOR MAMMALS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE6046736 1979-01-18
BE6046736A BE873572R (en) 1979-01-18 1979-01-18 CALVING WARNING

Publications (2)

Publication Number Publication Date
EP0015250A1 EP0015250A1 (en) 1980-09-03
EP0015250B1 true EP0015250B1 (en) 1984-02-15

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ID=3874809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80870003A Expired EP0015250B1 (en) 1979-01-18 1980-01-17 Apparatus for signalling the beginning of parturition for mammalian

Country Status (5)

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US (1) US4264900A (en)
EP (1) EP0015250B1 (en)
AT (1) ATE6199T1 (en)
BE (1) BE873572R (en)
DE (1) DE3066529D1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE873572R (en) * 1979-01-18 1979-05-16 Charlier Andre A M J CALVING WARNING
DE3443152A1 (en) * 1984-06-29 1986-05-28 Jitze Marum Bouma ARRANGEMENT FOR PREVENTING THE DEAD PRESSURE OF PIGLETS IN PIGBREEDING FARMS
US5653242A (en) * 1995-04-28 1997-08-05 Ultratec (1995) Inc. Transmitter implant to indicate parturition
US6383137B1 (en) * 2000-11-01 2002-05-07 Daniel K. Berry Labor alerting device
CA2501894C (en) 2005-04-12 2013-01-08 Conception Ro-Main Inc. Birth monitoring method for piglets
CA2578619A1 (en) * 2007-01-31 2008-07-31 Conception Ro-Main Inc. Birth monitoring system for piglets
FR2974999B1 (en) * 2011-05-12 2014-02-14 Foal Option DEVICE FOR ALERTING A FALLING.
CN111915859A (en) * 2020-09-04 2020-11-10 中国农业大学 An equine childbirth alarm system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2214221A1 (en) * 1972-03-23 1973-10-11 Edward R Gardner DEVICE AND METHOD FOR REPORTING A BIRTH
CA1024233A (en) * 1973-02-27 1978-01-10 Tadasi Sato Method and apparatus for delivery alarm for livestock animals
FR2353225A1 (en) * 1976-06-04 1977-12-30 Gouilleux Michel Calf birth warning device - has tiltable frame fixed to rear of cow to operate two reed switches of radio signal transmitter
NL7801700A (en) * 1977-03-09 1978-09-12 Rene Lorette ALARM DEVICE FOR THE BARING OF PETS.
BE852331A (en) * 1977-03-10 1977-09-12 Charlier Andre A M J CALVING WARNING
BE873572R (en) * 1979-01-18 1979-05-16 Charlier Andre A M J CALVING WARNING

Also Published As

Publication number Publication date
BE873572R (en) 1979-05-16
EP0015250A1 (en) 1980-09-03
DE3066529D1 (en) 1984-03-22
ATE6199T1 (en) 1984-03-15
US4264900A (en) 1981-04-28

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