EP0081392B1 - Artificial insemination device, especially for chickens - Google Patents

Artificial insemination device, especially for chickens Download PDF

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Publication number
EP0081392B1
EP0081392B1 EP82400961A EP82400961A EP0081392B1 EP 0081392 B1 EP0081392 B1 EP 0081392B1 EP 82400961 A EP82400961 A EP 82400961A EP 82400961 A EP82400961 A EP 82400961A EP 0081392 B1 EP0081392 B1 EP 0081392B1
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EP
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Prior art keywords
reservoir tube
housing
bearing surface
retaining
clamping part
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EP82400961A
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German (de)
French (fr)
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EP0081392A1 (en
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Robert Cassou
Maurice Cassou
Bertrand Cassou
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
    • A61D19/00—Instruments or methods for reproduction or fertilisation
    • A61D19/02—Instruments or methods for reproduction or fertilisation for artificial insemination
    • A61D19/027—Devices for injecting semen into animals, e.g. syringes, guns, probes

Definitions

  • the present invention relates to artificial insemination devices for small animals and more particularly for backyard birds, called “machine guns” and which are of the type comprising, on the one hand, inside a housing, a cylindrical guide passage for seed ejection means, and, on the other hand, a seed reservoir tube connected by holding means to a part integral with said housing, said part projecting from the front face of the housing and being traversed by said passage, the reservoir tube and the holding means being located in front of the front face of the housing with the reservoir tube positioned coaxially with said passage and extending beyond the projecting part.
  • semen ejection means consist of a piston rod slidingly mounted in the passage of the housing and provided with step-by-step advance means
  • a machine gun makes it possible, from a given volume of semen (or other injected product) contained in the reservoir tube, to carry out several successive injection operations, each using only a given fraction or dose, known and perfectly determined, which thus authorizes the successive and immediate insemination of several animals .
  • the holding means are provided by the presence of a flexible protective sheath which envelops the assembly constituted by the reservoir tube and said projecting part and is fixed at its rear end to the latter, either by a clamping ring cooperating with a converging outer surface of this part, either by elasticity on a rib, for example spiral, provided on this same part, while at its front end, this sheath offers a convergent or rounded shape which serves as a stop at the end of the tank tube. This convergent or rounded shape on the one hand, facilitates penetration into the cesspool and on the other hand, avoids injuring the wall of the latter.
  • the reduced-size orifice which is delimited by this converging or rounded end plays an adjusting role and allows, under the effect of the mechanical force provided by the piston rod which penetrates into the reservoir tube, to evacuate the seed under pressure in the form of a jet, without forming a drop "beading at the end of the sheath and which, remaining fixed to the latter by capillary action, would be lost for insemination, thus causing on the one hand, an error in the dose actually injected and on the other hand, a higher cost of the operation due to the very high price of the semen.
  • a reservoir tube as described above has a capacity of approximately 0.5 cm 3 and therefore makes it possible to inseminate 20 to 25 animals taking into account the concentration of the ejaculate contained in this tube.
  • concentration must be different and the abovementioned capacity would only allow the obtaining of approximately 10 doses, which would require a far too frequent change of the tank tube and therefore a waste of time.
  • the cost of the reservoir tube also increases the cost price per dose injected.
  • the sheath generally made of polyvinyl chloride, like the reservoir tube, is also of a relatively high cost price and further burdens the cost of use.
  • the invention aims to eliminate these various drawbacks, firstly by reducing the cost price of the removable and replaceable part previously constituted by the reservoir tube and the sheath.
  • the subject of the invention is a device of the aforementioned type, characterized in that said means for holding the reservoir tube on the projecting part extend in line with the rear end of the reservoir tube, which rear end engages by interlocking on one of said holding means constituted by a bearing provided on the projecting part, in that said holding means comprise, in addition to said bearing, a part of a clamping piece allowing by wedging between itself and the bearing holding the rear end of the reservoir tube on the bearing, this clamping piece further having an elongated part which surrounds a limited part of the length of the reservoir tube, also in the region of the rear part of the latter, thus opposing significant deformations of the reservoir tube, and in that the front end of the reservoir tube has a convergent or rounded shape.
  • the preceding arrangement makes it possible to provide that the internal diameter of the reservoir tube is significantly greater than that of the cylindrical guide passage, and therefore at diameter of a piston rod constituting the seed injection means, which thus makes it possible to have tubes of a clearly greater capacity and which can for example also contain, 20 to 25 doses of seeds of the gallus species if this capacity reaches 1.2 cm 3 .
  • the projecting part integral with the housing has, externally and successively along the axis of the guide passage, the holding surface of the reservoir tube and a free cylindrical surface of diameter less than the internal diameter of the reservoir tube.
  • This cylindrical surface penetrates freely into the reservoir tube and more particularly serves as a support for a piston stopper which is normally provided at this end inside the tube and serves to eject the seed under the action of the piston rod .
  • This device is in the form of a pistol consisting of a housing 1 having a front face 1a in which is fixed a block 2 which has a barrel-shaped part 2a projecting from the face 1a and oriented along a direction XX.
  • This block 2 and its projecting part 2a have a cylindrical guide passage 3 arranged in the direction XX and inside which is slidably mounted a piston rod 4 which extends behind the block 2 inside the housing 1 and is provided with step-by-step feed means 5 which include pierced plates 5a, springs 5b and stops 5c and which will not be described in more detail, a description already being given in French patent no. 7,902,020.
  • These advance means 5 are controlled using a trigger gun 6 which projects through a stock 7 of the housing disposed laterally with respect to the axis XX.
  • the projecting part 2a of the block 2 comprises externally and successively from the face 1a of the housing and in the direction XX, a cylindrical surface having a fixing thread 8, then a cylindrical seat 9 of slightly smaller diameter, and, after a radial shoulder 10, a frustoconical convergent bearing surface at a relatively small angle 11 and finally a cylindrical surface 12 ending in a beveled end 13.
  • this gun With this gun is associated a reservoir tube or flake 14 made for example of polyvinyl chloride and which contains animal semen, its rear end being closed off with a plunger stopper 15.
  • the internal diameter of this flake is very slightly greater, with a clearance e, than the diameter of the cylindrical surface 12 of the barrel 2a.
  • Its extreme rear portion 14a is forcibly engaged, by interlocking, on the frustoconical surface 11 of the barrel, the flaring of this normally cylindrical end ensuring clear support on this part. It follows from this interlocking that the projecting barrel 2a penetrates inside the reservoir tube 14 and that its end 13 serves as a stop for the piston stopper 15.
  • a longitudinal slot can also advantageously be provided on the extreme rear fitting portion 14a, this slot having the function of facilitating, on the one hand, the fitting of the straw when it is placed on the barrel 2a of the pistol, and on the other hand, to also facilitate its ejection once it has been fully used.
  • the plug-piston 15 which has three parts juxtaposed in the axial direction, is colored in that of these parts which is located in the middle so that, when the plug reaches almost the front end 14b of the straw , this colored part serves as an optical signal for the inseminator who then knows that he is almost at the end of the continuous seed in the straw and that he has only two or three doses left to inseminate.
  • This cap allows, moreover, an easy and rapid aspiration of the liquid in the straw before mounting it on the gun, and this from a bulb containing the liquid (such as, for example, harvested cock seed , or any other liquid to be injected).
  • This assembly is completed by a clamping piece 16 of revolution and which successively comprises from the rear towards the front a connection part 16a provided with an internal thread which is screwed onto the thread 8 of the barrel, then a chambering 16b which leaves a certain clearance with respect to the range 9 and the shoulder 10 of this barrel, and an end portion 16c comprising an inner cylindrical bore of diameter very slightly greater, with a clearance e, 'than the outside diameter of the tube- reservoir 14, the rear edge of this bore having a rounding or fillet 16d which rests on the flared part 14a of the reservoir tube and on the frustoconical surface 11 of the barrel.
  • the rounded 16d which is polished, makes it possible to avoid sectioning of the reservoir tube 14 at this level and, consequently, an escape of the latter out of the gun during actuation of the rod. -piston 4.
  • the cylindrical front part 16c extends over a certain length around the reservoir tube 14 so as to reinforce the positioning and the rigidity of the latter, and the length of this guide can reach for example one third, half or even more than half the length of the tube 14.
  • This latter reservoir tube 14 has at its front end a frustoconical convergent part 14b which ends in a flange 14c folded internally in the form of a hem and which can even return axially towards the interior of the reservoir tube, this flange delimiting an orifice ejection 14d.
  • the inseminator can then introduce the tube 14 into the cesspool of the animal and, using the trigger 6; actuate the piston rod 4 which, via the plug 15, pushes the desired dose of semen through the orifice 14d of the straw, the throttling of the jet thus obtained promoting the quality of insemination.
  • the inseminator can replace the latter by dismantling and reassembling the clamping piece 16.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Reproductive Health (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Prostheses (AREA)
  • Surgical Instruments (AREA)
  • Catching Or Destruction (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Description

La présente invention concerne les dispositifs d'insémination artificielle pour petits animaux et plus particulièrement pour les oiseaux de basse- cour, dits « mitraillettes » et qui sont du type comportant, d'une part, à l'intérieur d'un boîtier, un passage cylindrique de guidage pour des moyens d'éjection de semence, et, d'autre part, un tube-réservoir de semence lié par des moyens de maintien à une partie solidaire dudit boîtier, ladite partie faisant saillie sur la face avant du boîtier et étant traversée par ledit passage, le tube-réservoir et les moyens de maintien étant situés en avant de la face avant du boîtier avec le tube-réservoir positionné coaxialement audit passage et s'étendant au-delà de la partie en saillie.The present invention relates to artificial insemination devices for small animals and more particularly for backyard birds, called "machine guns" and which are of the type comprising, on the one hand, inside a housing, a cylindrical guide passage for seed ejection means, and, on the other hand, a seed reservoir tube connected by holding means to a part integral with said housing, said part projecting from the front face of the housing and being traversed by said passage, the reservoir tube and the holding means being located in front of the front face of the housing with the reservoir tube positioned coaxially with said passage and extending beyond the projecting part.

Lorsque les moyens d'éjection de semence sont constitués par une tige-piston montée coulissante dans le passage du boîtier et munie de moyens d'avance pas à pas, une telle « mitraillette permet, à partir d'un volume donné de semence (ou autre produit injecté) contenu dans le tube-réservoir, d'effectuer plusieurs opérations successives d'injection n'utilisant chacune qu'une fraction donnée ou dose, connue et parfaitement déterminée, ce qui autorise ainsi l'insémination successive et immédiate de plusieurs animaux.When the semen ejection means consist of a piston rod slidingly mounted in the passage of the housing and provided with step-by-step advance means, such a "machine gun makes it possible, from a given volume of semen (or other injected product) contained in the reservoir tube, to carry out several successive injection operations, each using only a given fraction or dose, known and perfectly determined, which thus authorizes the successive and immediate insemination of several animals .

Ainsi, on connaît déjà, par exemple, par le brevet français n° 7 902 020 publié sous le n°2447181, des dispositifs du type considéré, plus particulièrement utilisés pour l'insémination des pintades. Dans ces dispositifs toutefois, le passage de guidage est prévu dans une pièce qui présente une partie en saillie par rapport au boîtier, et le tube-réservoir, dont le diamètre intérieur est pratiquement égal au diamètre de la tige-piston, s'applique uniquement par sa tranche arrière contre la face frontale de cette partie en saillie. Les moyens de maintien sont fournis par la présence d'une gaine protectrice souple qui enveloppe l'ensemble constitué par le tube-réservoir et ladite partie en saillie et est fixée à son extrémité arrière sur cette dernière, soit par une bague de serrage coopérant avec une surface extérieure convergente de cette partie, soit par élasticité sur une nervure, par exemple spirale, prévue sur cette même partie, tandis qu'à son extrémité avant, cette gaine offre une forme convergente ou arrondie qui sert de butée à l'extrémité du tube-réservoir. Cette forme convergente ou arrondie d'une part, facilite la pénétration dans le cloaque et d'autre part, évite de blesser la paroi de ce dernier. En outre, l'orifice de dimension réduite qui est délimité par cette extrémité convergente ou arrondie joue un rôle d'ajustage et permet, sous l'effet de l'effort mécanique fourni par la tige-piston qui pénètre dans le tube-réservoir, d'évacuer sous pression la semence sous forme d'un jet, sans former de goutte « perlant à l'extrémité de la gaine et qui, demeurant fixée à celle-ci par capillarité, serait perdue pour l'insémination, entraînant ainsi d'une part, une erreur dans la dose effectivement injectée et d'autre part, un coût supérieur de l'opération en raison du prix très élevé de la semence.Thus, we already know, for example, from French patent n ° 7,902,020 published under n ° 2447181, devices of the type considered, more particularly used for the insemination of guinea fowl. In these devices, however, the guide passage is provided in a part which has a protruding part relative to the housing, and the reservoir tube, the internal diameter of which is practically equal to the diameter of the piston rod, applies only by its rear edge against the front face of this projecting part. The holding means are provided by the presence of a flexible protective sheath which envelops the assembly constituted by the reservoir tube and said projecting part and is fixed at its rear end to the latter, either by a clamping ring cooperating with a converging outer surface of this part, either by elasticity on a rib, for example spiral, provided on this same part, while at its front end, this sheath offers a convergent or rounded shape which serves as a stop at the end of the tank tube. This convergent or rounded shape on the one hand, facilitates penetration into the cesspool and on the other hand, avoids injuring the wall of the latter. In addition, the reduced-size orifice which is delimited by this converging or rounded end plays an adjusting role and allows, under the effect of the mechanical force provided by the piston rod which penetrates into the reservoir tube, to evacuate the seed under pressure in the form of a jet, without forming a drop "beading at the end of the sheath and which, remaining fixed to the latter by capillary action, would be lost for insemination, thus causing on the one hand, an error in the dose actually injected and on the other hand, a higher cost of the operation due to the very high price of the semen.

Or, il se trouve que, dans le cas d'insémination de pintades, un tube-réservoir tel que décrit ci- dessus présente une capacité d'environ 0,5 cm3 et permet donc d'inséminer 20 à 25 animaux compte tenu de la concentration de l'éjaculat contenu dans ce tube. Pour d'autres espèces, par exemple pour les animaux du genre gallus, tels que les poules, la concentration doit être différente et la capacité précitée ne permettrait que l'obtention d'environ 10 doses, ce qui exigerait un changement beaucoup trop fréquent du tube-réservoir et donc une perte de temps. En outre, le coût du tube-réservoir accroît également le prix de revient par dose injectée. Enfin, la gaine, généralement réalisée en chlorure de polyvinyle, comme le tube-réservoir, est également d'un prix de revient relativement élevé et grève encore le coût de l'utilisation.However, it turns out that, in the case of insemination of guinea fowl, a reservoir tube as described above has a capacity of approximately 0.5 cm 3 and therefore makes it possible to inseminate 20 to 25 animals taking into account the concentration of the ejaculate contained in this tube. For other species, for example for animals of the genus gallus, such as hens, the concentration must be different and the abovementioned capacity would only allow the obtaining of approximately 10 doses, which would require a far too frequent change of the tank tube and therefore a waste of time. In addition, the cost of the reservoir tube also increases the cost price per dose injected. Finally, the sheath, generally made of polyvinyl chloride, like the reservoir tube, is also of a relatively high cost price and further burdens the cost of use.

C'est pourquoi, l'invention a pour but de supprimer ces divers inconvénients, en premier lieu en réduisant le prix de revient de la partie amovible et remplaçable constituée précédemment par le tube-réservoir et la gaine.This is why the invention aims to eliminate these various drawbacks, firstly by reducing the cost price of the removable and replaceable part previously constituted by the reservoir tube and the sheath.

A cet effet, l'invention a pour objet un dispositif du type précité, caractérisé en ce que lesdits moyens de maintien du tube-réservoir sur la partie en saillie s'étendent à l'aplomb de l'extrémité arrière du tube-réservoir, laquelle extrémité arrière s'engage par emboîtement sur l'un desdits moyens de maintien constitué par une portée prévue sur la partie en saillie, en ce que lesdits moyens de maintien comportent outre ladite portée une partie d'une pièce de serrage permettant par coincement entre elle-même et la portée la tenue de l'extrémité arrière du tube-réservoir sur la portée, cette pièce de serrage ayant en outre une partie allongée qui entoure une partie limitée de la longueur du tube-réservoir, également dans la région de la partie arrière de celui-ci, s'oppo- .sant ainsi à des déformations sensibles du tube-réservoir, et en ce que l'extrémité avant du tube-réservoir présente une forme convergente ou arrondie.To this end, the subject of the invention is a device of the aforementioned type, characterized in that said means for holding the reservoir tube on the projecting part extend in line with the rear end of the reservoir tube, which rear end engages by interlocking on one of said holding means constituted by a bearing provided on the projecting part, in that said holding means comprise, in addition to said bearing, a part of a clamping piece allowing by wedging between itself and the bearing holding the rear end of the reservoir tube on the bearing, this clamping piece further having an elongated part which surrounds a limited part of the length of the reservoir tube, also in the region of the rear part of the latter, thus opposing significant deformations of the reservoir tube, and in that the front end of the reservoir tube has a convergent or rounded shape.

Grâce à cet agencement, il n'est plus nécessaire de prévoir une gaine spéciale supplémentaire assurant d'une part, le maintien du tube-réservoir sur le boîtier et d'autre part, une pénétration aisée et sans blessure, et c'est la partie allongée de la pièce de serrage, qui sert de guide au tube-réservoir sur une partie de sa longueur et lui assure ainsi une certaine rigidité qui s'ajoute à sa rigidité propre pour remplacer celle qui ne lui est plus fournie par la gaine qui a été supprimée.Thanks to this arrangement, it is no longer necessary to provide an additional special sheath ensuring on the one hand, the maintenance of the reservoir tube on the housing and on the other hand, easy penetration and without injury, and this is the elongated part of the clamping piece, which serves as a guide for the reservoir tube over a part of its length and thus provides it with a certain rigidity which is added to its own rigidity to replace that which is no longer provided to it by the sheath which has been deleted.

En outre, dans un mode de réalisation particulièrement avantageux, la disposition précédente permet de prévoir que le diamètre intérieur du tube-réservoir soit notablement supérieur à celui du passage cylindrique de guidage, et donc au diamètre d'une tige-piston constituant les moyens d'injection de semence, ce qui permet ainsi de disposer de tubes d'une capacité nettement plus grande et pouvant par exemple contenir également, 20 à 25 doses de semences de l'espèce gallus si cette capacité atteint 1,2 cm3.In addition, in a particularly advantageous embodiment, the preceding arrangement makes it possible to provide that the internal diameter of the reservoir tube is significantly greater than that of the cylindrical guide passage, and therefore at diameter of a piston rod constituting the seed injection means, which thus makes it possible to have tubes of a clearly greater capacity and which can for example also contain, 20 to 25 doses of seeds of the gallus species if this capacity reaches 1.2 cm 3 .

De préférence, la partie en saillie solidaire du boîtier présente, extérieurement et successivement suivant l'axe du passage de guidage, la portée de maintien du tube-réservoir et une surface cylindrique libre de diamètre inférieur au diamètre intérieur du tube-réservoir. Cette surface cylindrique pénètre librement dans le tube-réservoir et sert plus particulièrement d'appui à un bouchon-piston qui est normalement prévu à cette extrémité à l'intérieur du tube et sert à éjecter la semence sous l'action de la tige-piston.Preferably, the projecting part integral with the housing has, externally and successively along the axis of the guide passage, the holding surface of the reservoir tube and a free cylindrical surface of diameter less than the internal diameter of the reservoir tube. This cylindrical surface penetrates freely into the reservoir tube and more particularly serves as a support for a piston stopper which is normally provided at this end inside the tube and serves to eject the seed under the action of the piston rod .

Avantageusement, il peut être prévu que la partie allongée de la pièce de serrage comporte un passage central cylindrique de diamètre à peu près égal au diamètre extérieur du tube-réservoir à un léger jeu près.Advantageously, provision may be made for the elongated part of the clamping piece to have a central cylindrical passage with a diameter approximately equal to the outside diameter of the reservoir tube with a slight play.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre, à titre d'exemple non limitatif et en regard des dessins annexés, sur lesquels :

  • la figure 1 représente une vue partielle et en coupe d'un dispositif suivant un mode de réalisation particulier conforme à l'invention ;
  • la figure 2 représente une vue partielle et à plus grande échelle de la zone de maintien du tube-réservoir sur le boîtier.
Other characteristics and advantages of the invention will emerge from the description which follows, by way of nonlimiting example and with reference to the appended drawings, in which:
  • Figure 1 shows a partial sectional view of a device according to a particular embodiment according to the invention;
  • 2 shows a partial view on a larger scale of the holding zone of the reservoir tube on the housing.

Ce dispositif se présente sous la forme d'un pistolet constitué d'un boîtier 1 présentant une face avant 1a dans laquelle est fixé un bloc 2 qui présente une partie en forme de canon 2a en saillie par rapport à la face 1a et orientée suivant une direction X-X. Ce bloc 2 et sa partie en saillie 2a présentent un passage cylindrique de guidage 3 disposé suivant la direction X-X et à l'intérieur de laquelle est montée coulissante une tige-piston 4 qui s'étend en arrière du bloc 2 à l'intérieur du boîtier 1 et est munie de moyens d'avance pas à pas 5 qui comprennent des plaquettes percées 5a, des ressorts 5b et des butées 5c et qui ne seront pas décrits plus en détail, une description en étant déjà donné dans le brevet français n° 7 902 020. Ces moyens d'avance 5 sont commandés à l'aide d'une détente-pistolet 6 qui fait saillie à travers une crosse 7 du boîtier disposée latéralement par rapport à l'axe X-X.This device is in the form of a pistol consisting of a housing 1 having a front face 1a in which is fixed a block 2 which has a barrel-shaped part 2a projecting from the face 1a and oriented along a direction XX. This block 2 and its projecting part 2a have a cylindrical guide passage 3 arranged in the direction XX and inside which is slidably mounted a piston rod 4 which extends behind the block 2 inside the housing 1 and is provided with step-by-step feed means 5 which include pierced plates 5a, springs 5b and stops 5c and which will not be described in more detail, a description already being given in French patent no. 7,902,020. These advance means 5 are controlled using a trigger gun 6 which projects through a stock 7 of the housing disposed laterally with respect to the axis XX.

La partie en saillie 2a du bloc 2 comporte extérieurement et successivement à partir de la face 1a du boîtier et suivant la direction X-X, une surface cylindrique présentant un filetage de fixation 8, puis une portée cylindrique 9 de diamètre légèrement inférieur, et, après un épaulement radial 10, une portée convergente tronconique à angle relativement faible 11 et enfin une surface cylindrique 12 se terminant par une extrémité biseautée 13.The projecting part 2a of the block 2 comprises externally and successively from the face 1a of the housing and in the direction XX, a cylindrical surface having a fixing thread 8, then a cylindrical seat 9 of slightly smaller diameter, and, after a radial shoulder 10, a frustoconical convergent bearing surface at a relatively small angle 11 and finally a cylindrical surface 12 ending in a beveled end 13.

A ce pistolet est associé un tube-réservoir ou paillette 14 réalisé par exemple en chlorure de polyvinyle et qui contient de la semence animale, son extrémité arrière étant obturée à l'aide d'un bouchon-piston 15. Le diamètre intérieur de cette paillette est très légèrement supérieur, avec un jeu e, au diamètre de la surface cylindrique 12 du canon 2a. Sa portion arrière extrême 14a est engagée à force, par emboîtement, sur la portée tronconique 11 du canon, l'évasement de cette extrémité normalement cylindrique assurant un appui net sur cette pièce. Il résulte de cet emboîtement que le canon en saillie 2a pénètre à l'intérieur du tube-réservoir 14 et que son extrémité 13 sert de butée au bouchon-piston 15.With this gun is associated a reservoir tube or flake 14 made for example of polyvinyl chloride and which contains animal semen, its rear end being closed off with a plunger stopper 15. The internal diameter of this flake is very slightly greater, with a clearance e, than the diameter of the cylindrical surface 12 of the barrel 2a. Its extreme rear portion 14a is forcibly engaged, by interlocking, on the frustoconical surface 11 of the barrel, the flaring of this normally cylindrical end ensuring clear support on this part. It follows from this interlocking that the projecting barrel 2a penetrates inside the reservoir tube 14 and that its end 13 serves as a stop for the piston stopper 15.

Il peut être également avantageusement prévu une fente longitudinale sur la portion arrière extrême 14a d'emboîtement, cette fente ayant pour fonction de faciliter, d'une part, l'emmanchement de la paillette lorsqu'on la place sur le canon 2a du pistolet, et d'autre part, de faciliter également son éjection une fois qu'elle a été totalement utilisée.A longitudinal slot can also advantageously be provided on the extreme rear fitting portion 14a, this slot having the function of facilitating, on the one hand, the fitting of the straw when it is placed on the barrel 2a of the pistol, and on the other hand, to also facilitate its ejection once it has been fully used.

En outre, le bouchon-piston 15 qui comporte trois parties juxtaposées dans le sens axial, se trouve coloré dans celle de ces parties qui se trouve située au milieu de sorte que, lorsque le bouchon parvient presque à l'extrémité avant 14b de la paillette, cette partie colorée sert de signal optique pour l'inséminateur qui sait alors qu'il arrive pratiquement à la fin de la semence continue dans la paillette et qu'il ne lui reste plus que deux ou trois doses à inséminer. Ce bouchon permet, par ailleurs, une aspiration aisée et rapide du liquide dans la paillette avant le montage de celle-ci sur le pistolet, et ceci à partir d'une ampoule contenant le liquide (tel que par exemple de la semence de coq récoltée, ou tout autre liquide à injecter). A cet effet, on introduit l'extrémité de la paillette opposée à son extrémité 14a, par le col de l'ampoule, dans le liquide à aspirer, et, à l'aide de la bouche ou d'un tuyau relié à une petite poire, on aspire ce liquide d'une manière simple, sans avoir à prévoir d'appareillage spécial et compliqué dans ce but. En outré, la partie centrale du bouchon, constituée de poudre spéciale, se gélifie instantanément sous l'action du liquide introduit dans la paillette, assurant ainsi une étanchéité parfaite à l'extrémité où se trouve ce bouchon après aspiration.In addition, the plug-piston 15 which has three parts juxtaposed in the axial direction, is colored in that of these parts which is located in the middle so that, when the plug reaches almost the front end 14b of the straw , this colored part serves as an optical signal for the inseminator who then knows that he is almost at the end of the continuous seed in the straw and that he has only two or three doses left to inseminate. This cap allows, moreover, an easy and rapid aspiration of the liquid in the straw before mounting it on the gun, and this from a bulb containing the liquid (such as, for example, harvested cock seed , or any other liquid to be injected). For this purpose, we introduce the end of the straw opposite its end 14a, through the neck of the bulb, into the liquid to be sucked, and, using the mouth or a pipe connected to a small pear, we suck this liquid in a simple way, without having to provide special and complicated equipment for this purpose. In addition, the central part of the stopper, made of special powder, instantly gels under the action of the liquid introduced into the straw, thus ensuring a perfect seal at the end where this stopper is located after aspiration.

Cet ensemble est complété par une pièce de serrage 16 de révolution et qui comporte successivement de l'arrière vers l'avant une partie de raccord 16a munie d'un filetage intérieur qui se visse sur le filetage 8 du canon, puis un cham- brage 16b qui laisse subsister un certain jeu par rapport à la portée 9 et l'épaulement 10 de ce canon, et une partie extrême 16c comportant un alésage cylindrique intérieur de diamètre très légèrement supérieur, avec un jeu e,' au diamètre extérieur du tube-réservoir 14, le bord arrière de cet alésage présentant un arrondi ou congé 16d qui s'appuie sur la partie évasée 14a du tube-réservoir et sur la portée tronconique 11 du canon. Il est important de noter que l'arrondi 16d, qui est poli, permet d'éviter un sectionnement du tube-résevoir 14 à ce niveau et, par conséquent, un échappement de ce dernier hors du pistolet lors de l'actionnement de la tige-piston 4. La partie cylindrique avant 16c s'étend sur une certaine longueur autour du tube-réservoir 14 de manière à renforcer le positionnement et la rigidité de celui-ci, et la longueur de ce guidage peut atteindre par exemple le tiers, la moitié ou même plus de la moitié de la longueur du tube 14.This assembly is completed by a clamping piece 16 of revolution and which successively comprises from the rear towards the front a connection part 16a provided with an internal thread which is screwed onto the thread 8 of the barrel, then a chambering 16b which leaves a certain clearance with respect to the range 9 and the shoulder 10 of this barrel, and an end portion 16c comprising an inner cylindrical bore of diameter very slightly greater, with a clearance e, 'than the outside diameter of the tube- reservoir 14, the rear edge of this bore having a rounding or fillet 16d which rests on the flared part 14a of the reservoir tube and on the frustoconical surface 11 of the barrel. It is important to note that the rounded 16d, which is polished, makes it possible to avoid sectioning of the reservoir tube 14 at this level and, consequently, an escape of the latter out of the gun during actuation of the rod. -piston 4. The cylindrical front part 16c extends over a certain length around the reservoir tube 14 so as to reinforce the positioning and the rigidity of the latter, and the length of this guide can reach for example one third, half or even more than half the length of the tube 14.

Ce dernier tube-réservoir 14 présente à son extrémité avant une partie convergente tronconique 14b qui se termine par un rebord 14c replié intérieurement en forme d'ourlet et pouvant même revenir axialement vers l'intérieur du tube-réservoir, ce rebord délimitant un orifice d'éjection 14d.This latter reservoir tube 14 has at its front end a frustoconical convergent part 14b which ends in a flange 14c folded internally in the form of a hem and which can even return axially towards the interior of the reservoir tube, this flange delimiting an orifice ejection 14d.

Le fonctionnement du dispositif ainsi décrit est le suivant :

  • On dévisse la pièce de serrage 16 et on emboîte un tube-réservoir 14 par son extrémité arrière sur le canon 2a du pistolet, à la suite de quoi, on recouvre ce tube par la pièce de serrage 16 qui est enfin serrée à l'aide du filetage de la partie de raccord 16a.
The operation of the device thus described is as follows:
  • We unscrew the clamping piece 16 and we fit a reservoir tube 14 by its rear end on the barrel 2a of the pistol, after which, we cover this tube with the clamping piece 16 which is finally tightened using of the thread of the connector part 16a.

L'inséminateur peut alors introduire le tube 14 dans le cloaque de l'animal et, à l'aide de la détente 6; actionner la tige-piston 4 qui, par l'intermédiaire du bouchon 15, repousse la dose voulue de semence à travers l'orifice 14d de la paillette, l'étranglement du jet ainsi obtenu favorisant la qualité de l'insémination.The inseminator can then introduce the tube 14 into the cesspool of the animal and, using the trigger 6; actuate the piston rod 4 which, via the plug 15, pushes the desired dose of semen through the orifice 14d of the straw, the throttling of the jet thus obtained promoting the quality of insemination.

Après avoir opéré plusieurs fois de la sorte sur différents animaux en utilisant le nombre de doses contenu dans la paillette, l'inséminateur peut remplacer cette dernière par démontage et remontage de la pièce de serrage 16.After having operated several times in this way on different animals using the number of doses contained in the straw, the inseminator can replace the latter by dismantling and reassembling the clamping piece 16.

Claims (10)

1. An artificial insemination device, of the type comprising, on the one hand, inside a housing (1), a cylindrical guidance passage (3) for means (4) for ejecting semen, and, on the other hand, a semen reservoir tube (14) connected by retaining means (11, 16d) to a portion (2a) integral with the said housing (1), the said portion (2a) projecting at the front face (1 a) of the housing (1) and being traversed by the said passage (3), the reservoir tube (14) and the retaining means (11, 16d) being situated in front of the front face (1a) of the housing (1) with the reservoir tube (14) positioned coaxially with the said passage (3) and extending beyond the projecting portion (2a), characterised in that the said means (11, 16d) for retaining the reservoir tube (14) on the projecting portion (2a) extend plumb with the rear end (14a) of the reservoir tube (14), which rear end (14a) engages by fitting over one said retaining means constituted by a bearing surface (11) provided on the projecting portion (2a), in that the said retaining means comprise, apart from the said bearing surface (11), a portion (16d) of a clamping part (16) allowing, by nipping between itself and the bearing surface (11), the retention of the rear end (14a) of the reservoir tube (14) on the bearing surface (11), this clamping part (16) having, moreover, an elongate portion (16c) which surrounds a limited portion of the length of the reservoir tube (14), equally in the region of the rear portion of this latter, thus opposing any significant deformation of the reservoir tube (14), and in that the front end (14b) of the reservoir tube (14) has a convergent or rounded form.
2. A device according to claim 1, characterised in that the inside diameter of the reservoir tube (14) is considerably greater than that of the cylindrical guidance passage (3).
3. A device according to claim 2, characterised in that the projecting portion (2a) integral with the housing (1) has, externally and successively along the axis of the guidance passage (3), the bearing surface (11) for retaining the reservoir tube (14) and a free cylindrical surface (12) of a diameter less than the inside diameter of the reservoir tube (14).
4. A device according to any one of claims 1 to 3, characterised in that the projecting portion (2a), integral with the housing (1), has externally a retaining bearing surface of frustoconical form (11) and in that the retaining portion (16d) of the clamping part (16) is constituted by an annular internal surface (16d) co-operating with this bearing surface (11), the clamping part (16) being retained, moreover, be means for connection (8, 16a) to the housing (1).
5. A device according to claim 4, characterised in that the connection means (8, 16a) are constituted by a threaded external surface (8), provided on the said projecting portion (2a) between the retaining bearing surface (11) and the housing (1), on which is screwed an internally-threaded union (16a) integral with the said clamping part (16).
6. A device according to any one of claims 1 to 5, characterised in that the elongate portion (16c) of the clamping part (16) comprises a cylindrical central passage of a diameter approximately equal to the outside diameter of the reservoir tube (14) save for a slight play (e).
7. A device according to any one of claims 1 to 6, characterised in that the reservoir tube (14) has, at its front end, a frustoconical convergent portion (14b) which ends in a tip (14c) which is folded internally.
8. A device according to any one of claims 1 to 7, characterised in that the guidance passage (3) is provided in a block (2) which is fixed on the front face (1a) of the housing (1) and which has the said projecting portion (2a).
9. A device according to any one of claims 4 to 6, characterised in that the annular internal surface (16d) of the clamping part (16) has, on the side of the housing, a rounded edge.
10. A device according to any one of claims 4 to 6, characterised in that the rear end (14a) of the reservoir tube (14) has a longitudinal slot.
EP82400961A 1981-12-03 1982-05-25 Artificial insemination device, especially for chickens Expired EP0081392B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8122628 1981-12-03
FR8122628A FR2517538A1 (en) 1981-12-03 1981-12-03 DEVICE FOR ARTIFICIAL INSEMINATION, IN PARTICULAR FOR POULTRY

Publications (2)

Publication Number Publication Date
EP0081392A1 EP0081392A1 (en) 1983-06-15
EP0081392B1 true EP0081392B1 (en) 1986-04-16

Family

ID=9264625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82400961A Expired EP0081392B1 (en) 1981-12-03 1982-05-25 Artificial insemination device, especially for chickens

Country Status (6)

Country Link
US (1) US4432753A (en)
EP (1) EP0081392B1 (en)
JP (1) JPS596656B2 (en)
CA (1) CA1183413A (en)
DE (1) DE3270574D1 (en)
FR (1) FR2517538A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520225A1 (en) * 1982-01-26 1983-07-29 Cassou Robert DEVICE FOR ARTIFICIAL INSEMINATION, IN PARTICULAR FOR TURKEYS
FR2586192B1 (en) * 1985-08-14 1990-07-13 Cassou Robert DEVICE FOR THE COLLECTION, CONSERVATION OR INJECTION OF LIQUID SUBSTANCES, OF ORGANIC TYPE
FR2609885B1 (en) * 1987-01-22 1989-04-14 Cassou Robert INSTRUMENT FOR ARTIFICIAL INSEMINATION, TRANSFER OF EMBRYOS OR COLLECTION OF FOLLICULAR LIQUIDS FROM MAMMALS
US5312333A (en) * 1992-04-03 1994-05-17 United States Surgical Corporation Endoscopic material delivery device
BR9405395A (en) * 1993-06-04 1999-09-08 Kwahak Internacional Co Ltda Device for artificial insemination and embryo transfer.
US5904665A (en) * 1995-03-07 1999-05-18 Vance Products Inc. Automated prolonged slow release intrauterine insemination using self retaining intrauterine insemination catheter
KR100271851B1 (en) * 1997-12-09 2000-11-15 김강권 An artificial insemination device
US6527703B2 (en) 2001-06-14 2003-03-04 Minitube Of America, Inc. Device for sow-intra-uterine insemination and embryo transfer
ES2207414B1 (en) * 2002-11-13 2005-05-01 Fimasperm, S.L. METHOD OF ARTIFICIAL INSEMINATION OF RABBITS AND DEVICE FOR PUTTING INTO THE SAME PRACTICE.
US20050038315A1 (en) * 2003-08-12 2005-02-17 Slo-Flo Ltd. Motorized syringe particularly useful for intra-uterine insemination
US9005209B2 (en) * 2009-07-30 2015-04-14 Kyphon Sarl High pressure surgical system
US10292371B2 (en) * 2016-03-14 2019-05-21 Andrea Cabibi Method and apparatus for effecting sperm collection and artificial insemination in small birds

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Publication number Priority date Publication date Assignee Title
US2503341A (en) * 1946-05-17 1950-04-11 Alfred J Kissileff Inseminator
US2751907A (en) * 1953-09-18 1956-06-26 Bishop & Co Platinum Works J Pellet injector
LU38125A1 (en) * 1959-02-04
FR1467943A (en) * 1965-12-23 1967-02-03 Advanced instrument for artificial insemination
FR2286659A1 (en) * 1974-10-04 1976-04-30 Cassou Robert Artificial insemination pistol - has insertion head extended by fine flexible tube tip injecting fluid
US4223674A (en) * 1978-06-29 1980-09-23 Arthur J. McIntosh Implant gun
FR2447181A1 (en) * 1979-01-26 1980-08-22 Cassou Bertrand Instrument for artificial insemination of birds - has thin plate spring mounted on shaft and movable between two positions by trigger

Also Published As

Publication number Publication date
DE3270574D1 (en) 1986-05-22
EP0081392A1 (en) 1983-06-15
JPS596656B2 (en) 1984-02-14
CA1183413A (en) 1985-03-05
JPS5897356A (en) 1983-06-09
FR2517538B1 (en) 1984-12-07
FR2517538A1 (en) 1983-06-10
US4432753A (en) 1984-02-21

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