EP0084749B1 - Device for artificial insemination, particularly for turkeys - Google Patents

Device for artificial insemination, particularly for turkeys Download PDF

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Publication number
EP0084749B1
EP0084749B1 EP82402269A EP82402269A EP0084749B1 EP 0084749 B1 EP0084749 B1 EP 0084749B1 EP 82402269 A EP82402269 A EP 82402269A EP 82402269 A EP82402269 A EP 82402269A EP 0084749 B1 EP0084749 B1 EP 0084749B1
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EP
European Patent Office
Prior art keywords
tube
grip
conduit
ejection rod
casing
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EP82402269A
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German (de)
French (fr)
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EP0084749A2 (en
EP0084749A3 (en
Inventor
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 devices, called “pistols", of artificial insemination with a single dose for animals such as poultry, and more particularly turkeys, of the type comprising, on the one hand, an elongated body having an axial duct at the end before which the end of an insemination tube can penetrate and be held, and in which a tube ejection rod is slidably mounted, secured to an external operating member, and, on the other hand, a compressible casing connected by a discharge passage to said front end of the axial duct of the body.
  • the insemination tube is intended to receive a dose of animal semen, either using a special filling machine, in which case this filling takes place before this tube is mounted on the gun , or using additional suction means provided on the gun itself, in which case this filling by suction is carried out once the tube mounted on the gun.
  • the inseminator introduces the tube into the animal's cloaca by pushing it using the pistol into the optimal desired position, as a result of which it compresses the envelope, which is filled with air, so that this air, driven back by the intended passage, repels the semen under a pressure strong enough for it to reach the level of the utero-glands. vaginal, thus ensuring insemination in the best conditions.
  • the shape of the pistol being essentially cylindrical and oriented along the axis of the glitter, the maneuver is not always easy, at least for some of the inseminators, all the more so as, for the proper insemination said the crushing of the compressible envelope requires a position of the hand very far back on the body of the gun.
  • the mechanism is relatively complex, due, in part, to the presence of the special suction members, thus leading to increased risks of fouling and notable maintenance difficulties.
  • the present invention therefore aims to provide a device of the type considered, whose operation is easy and the manufacture and maintenance simplified.
  • the invention relates to an artificial insemination device, of the type comprising, on the one hand, an elongated body having an axial duct at the front end of which can penetrate and be held the end of a insemination tube containing semen, and in which is slidably mounted a tube ejection rod, secured to an external operating member, and, on the other hand, an air reserve connected by a delivery passage at said front end of the axial duct of the body,
  • the tube ejection rod has at least one longitudinal flat defining with the internal wall of the axial duct of the body at least one longitudinal channel extending from the the front end of the duct from the body to the rear part of said body, so that the channel is in communication with the air reserve.
  • the pistol comprises a gripping part in the form of a pistol butt, integral with the body and arranged transversely with respect to the axial duct thereof, while the compressible casing is arranged on the front of this stick, on the side of the insemination tube.
  • the inseminator can very easily and firmly grip the pistol by its butt-shaped part and snap the front end of the axial duct of the body onto the end of the flake by a simple pushing movement, this flake being, in general, kept available by a distributor or even by the filling machine itself, as described in French patent application FR-A No 2500296.
  • the inseminator introduces it into the animal's cloaca by pushing the pistol again using the butt, which also serves to orient the glitter or to make it follow the sinuosities of the utero-vaginal duct, following which a firm pressure of the fingers on the compressible envelope placed in front of the stick allows the energetic ejection of the semen.
  • the inseminator must then not release its pressure on the envelope, so as not to risk sucking up the dose that it has just deposited, until it has removed the straw from the cloaca.
  • a simple gesture of the thumb on the actuator of the ejection rod, fixed on the body, allows the separation of the straw and a new complete cycle of operations.
  • the gun body containing the air delivery passage and the ejection rod of the tube, has a cylindrical rear part which is slidably mounted in a cylindrical opening provided at the upper end of the stick and with which are associated locking means in position.
  • the upper part of the stick protrudes forward relative to its grip part proper and has a connecting conduit projecting downwards, on which the orifice of the compressible envelope is fixed and which leads, moreover, into the discharge passage.
  • this connecting conduit is constituted by an attached tube, engaged over a part of its length in an opening made in the upper part of the stick and opening into the opening of the stick which receives the body.
  • the different parts are mounted one inside the other thanks to simple cylindrical openings which are very easy to clean, and disassembly is also extremely simple, the means for blocking the body in the stock being , for example, constituted by a simple screw, while the casing snaps onto the connecting tube and the latter in the butt.
  • the operating member of the ejection rod is constituted by a pusher fixed on the rear end of this rod and projecting from the rear of the body. This arrangement particularly promotes ejection by simple movement of the thumb on the rear of the pistol.
  • the gun shown comprises, on the one hand, a cylindrical body 1 in the form of a barrel and, on the other hand, a transverse stock 2 at the front of which is an air envelope 3.
  • the body or barrel 1 is constituted by a solid part, at the rear of which is formed a cylindrical recess 4, and which is traversed over all the rest of its length and along its axis XX by a guide duct 5.
  • a l inside this conduit 5, is slidably mounted an ejection rod 6 which extends over the entire length of this conduit, with the exception of a relatively short front part 5a, as well as through the entire recess 4, so as to project outside of it, to carry, fixed on it, a cylindrical sleeve 7 which has a rounded semi-spherical head 7a forming a pusher.
  • the sleeve 7 also has a collar 7b which is slidably mounted in the recess 4 and behind which engage the two arms of a stirrup-shaped part 8 which pass through parallel transverse conduits formed in the butt 2.
  • a return spring 9 is finally disposed between the bottom of the recess 4 and the sleeve 7 in order to bring the latter back to the rear position bearing on the stirrup 8.
  • the grip-shaped piece 2 has a grip part proper adapted to the shape of the hand and which extends upwards by an upper part 2a in which is formed a through cylindrical opening 11 in which is engaged the part cylindrical rear of the body 1, this part of the body being held there by means of a locking screw 12 passing radially through the upper part 2a of the stick.
  • the rear face of the body 1 stops in withdrawal with respect to the rear face 2b of the upper part 2a of the stick, so that the stirrup 8 can pass behind this body to maintain the flange 7b of the sleeve 7.
  • the base of the stirrup 8 rests, moreover, on the upper face of this part 2a of the stick.
  • This same upper part 2a of the stick protrudes forward with respect to the main part 2 and a conduit 13 is formed in this protruding part, downwards, so as to receive a tube 14 which protrudes out of it. leads downwards so as to penetrate into the orifice 3a which the casing 3 presents.
  • the latter is in the form of an elongated pear made of a compressible elastic material such as rubber. It rests by its lateral surface against the front face of the main part 2 of the stick, extending over the greater part of the height of the latter.
  • the conduit 13 is formed in the upper part 2a of the butt slightly in front of the recess 4 of the body 1, so that the end of the tube 14 can also penetrate into a connecting passage 15 formed radially in the body 1 and opening into the axial duct 5 of the latter. From the location of this conduit 15, two delivery passages are formed between the conduit 5 and the rod 6 to the front end of the latter, these passages being delimited by two parallel flats 16 formed in the thickness of the rod 6 at diametrically opposite locations.
  • the passages 17 thus delimited communicate the passage 15, and consequently the tube 14 and the casing 3, with the front end 5a of the conduit 5 and, consequently, with the interior of the straw 10 which is fixed to it.
  • a seal is provided around the rod 6 and behind the duct 15 to avoid an escape of the air from the envelope 3 in the direction of the recess 4.
  • the gun shown in fig. 3 has an important part of its mechanism identical to that of the previous embodiment and this is the reason why the entire upper part of this gun is shown in external view.
  • the main part of the stick has a fairly deep slot, extending both over the rear at 18a and at its lower end at 18b.
  • a lever Inside this double slot, is housed a lever with two arms 19 which is articulated in 19a between the two lateral flanges that define the slots 18a and 18b, one of the arms 19b, of great length, extending through the slot 18a so that its end is placed behind the push-flange 7a of the sleeve 7, while its other arm 19c, shorter, is housed in the lower slot 18.
  • stirrup 20 is articulated transversely at 20a by its upper end on the butt 2, while at its lower end, a transverse rod 20b is provided which passes, moreover, two slots 21 formed in the lower flanges of the butt, following an arc centered on the joint 20a.
  • stirrup 20 In the normal position, that is to say the casing 3 being normally filled and not crushed, the stirrup 20 extends approximately vertically on the stick, and the transverse rod 20b remains placed in front of the slots 21, in front of a spout 19d formed at the end of the lower arm 19c of the lever and directed upwards. Finally, a return spring 22 is provided which is disposed between the bottom of the slot 18a and the elongated arm 19b of the lever.
  • the artificial insemination device or pistol comprises a barrel 1 similar to that visible in FIG. 1, this barrel however having the particularity here of comprising a flange 23 situated in the vicinity of its rear part and two O-rings 24, 25, delimiting between them an annular space 26 into which opens a radial orifice 27 passing through the barrel 1.
  • a connector 28 in the form of a sleeve, this connector being positioned on the two O-rings 24 and 25 and which ensure its sealing.
  • This connector comprises a threaded end piece 29 crossed by an orifice 30, the latter opening into the annular space 26 of the barrel and being oriented so as to be opposite the orifice 27.
  • the threaded end piece 29 is connected by screwing to a fitting 31, itself coupled to a source of weakly compressed air.
  • This connector 31 contains, in known manner, a valve (not shown) controlled from the outside by a push button 33 controlled by a trigger 34.
  • the gun is of the linear type and operates in the manner of a bicycle pump.
  • the barrel 1 has on its rear part a double annular flange 35, 36 delimiting between them an annular housing 37, in which is embedded a lip seal 38 ensuring the seal between the barrel body and a shell 39 in form of cap mounted to move axially in alternative translation relative to said barrel, this shell defining with a recess 40, formed in the rear face of the barrel, a chamber 41 for air accumulation.
  • This hull iIIe 39 is permanently biased towards the rear, that is to say in a direction opposite to the straw 10 by a spiral spring 42, bearing on the bottom of the recess 40 and against the internal front face 39, shell 39.
  • the seal 38 comprises a flexible lip 38, slightly inclined towards the outside in the direction of the peripheral internal wall 39 2 of the shell 39, this lip being directed in the direction of the thrust of the spring 42 (arrow F), so that , during the translational movement of the shell 39 in the direction of the straw 10, the lip 38 of the seal 38 is applied with sealing against the internal wall 39 2 , whereas, when the shell returns to its initial position by sliding opposite direction (arrow F), this lip 38, fades radially inward to allow the passage and introduction into the chamber 41 of the outside air by an annular gap 43 formed between the collar 35 of the barrel and the inner wall 39 z of the shell.
  • the retraction of the shell 39 in the direction of the arrow F allows the pistol to be cocked by introducing and accumulating air in the chamber 41, while the displacement of this same shell in the opposite direction ensures the transfer of this air contained in the chamber 41 in the straw 10 by passing through the axial passages 17 defined by the flats 16 produced on the ejection rod 6.
  • This ejection rod 6 is fixed, by its rear part 6 1 , in an internal boss 44 of the shell and is guided over its entire length in the duct 5 of the barrel.
  • the sequin 10 can have, at at least one of its ends, a hem 45 and, if necessary, this hem can be repeated at the other opposite end.
  • a stirrup 46 secures the barrel to the shell 39, this stirrup having its two arms bearing on the annular flange 35 of the barrel in order to avoid expulsion of the shell 39.
  • the travel in translation of the shell 39 corresponds to the stroke of the ejection rod 6 which is integral with it, the stroke of which itself is limited by the stop on the front end face of this rod with the rear end of the insemination tube.
  • the contact between the rod and the tube is sufficient to be perceived by the hand of the operator who, when he meets this resistance, understands that the insemination operation is finished, and can then extract the tube from the cesspool animal in order to continue pushing on the shell 39 in the direction of the tube so that the ejection rod 6 causes its expulsion from the nose of the body 1.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Wood Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Reproductive Health (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Catching Or Destruction (AREA)
  • Nozzles (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Toys (AREA)

Description

La présente invention concerne les dispositifs, dits «pistolets», d'insémination artificielle à dose unique pour animaux tels que les volailles, et plus particulièrement les dindes, du type comprenant, d'une part, un corps allongé présentant un conduit axial à l'extrémité avant duquel peut pénétrer et être maintenue l'extrémité d'un tube d'insémination, et dans lequel est montée coulissante une tige d'éjection du tube, solidaire d'un organe extérieur de manoeuvre, et, d'autre part, une enveloppe compressible reliée par un passage de refoulement à ladite extrémité avant du conduit axial du corps.The present invention relates to devices, called "pistols", of artificial insemination with a single dose for animals such as poultry, and more particularly turkeys, of the type comprising, on the one hand, an elongated body having an axial duct at the end before which the end of an insemination tube can penetrate and be held, and in which a tube ejection rod is slidably mounted, secured to an external operating member, and, on the other hand, a compressible casing connected by a discharge passage to said front end of the axial duct of the body.

Le tube d'insémination, dit «paillette», est destiné à recevoir une dose de semence animale, soit à l'aide d'une machine spéciale de remplissage, auquel cas ce remplissage a lieu avant que ce tube ne soit monté sur le pistolet, soit à l'aide de moyens supplémentaires d'aspiration prévus sur le pistolet lui-même, auquel cas ce remplissage par aspiration s'effectue une fois le tube monté sur le pistolet. Dans tous les cas, une fois le pistolet muni de son tube rempli de la dose voulue de semence, l'inséminateur introduit le tube dans le cloaque de l'animal en le poussant à l'aide du pistolet jusque dans la position optimale voulue, à la suite de quoi il comprime l'enveloppe, qui est remplie d'air, de manière que cet air, refoulé par le passage prévu, repousse la semence sous une pression suffisamment forte pour que celle-ci atteigne le niveau des glandes utéro-vaginales, assurant ainsi l'insémination dans les meilleures conditions.The insemination tube, called "straw", is intended to receive a dose of animal semen, either using a special filling machine, in which case this filling takes place before this tube is mounted on the gun , or using additional suction means provided on the gun itself, in which case this filling by suction is carried out once the tube mounted on the gun. In all cases, once the pistol with its tube filled with the desired dose of semen, the inseminator introduces the tube into the animal's cloaca by pushing it using the pistol into the optimal desired position, as a result of which it compresses the envelope, which is filled with air, so that this air, driven back by the intended passage, repels the semen under a pressure strong enough for it to reach the level of the utero-glands. vaginal, thus ensuring insemination in the best conditions.

On connaît déjà, par exemple par la demande de brevet français FR-A No 2501036, des pistolets du type considéré dans lesquels la tige d'éjection est creuse et l'enveloppe compressible s'emboîte sur son extrémité opposée au tube d'insémination en étant logée dans une chambre axiale allongée du corps de manière à suivre le mouvement de la tige lors du mouvement d'éjection, tandis que l'organe de manoeuvre de cette tige, fixé sur le côté de celle-ci, fait saillie transversalement hors du corps. Ce même organe de manoeuvre incorpore d'ailleurs les moyens supplémentaires d'aspiration prévus dans la seconde application envisagée plus haut. Il est important de noter que les trois opérations de pénétration dans le cloaque, d'insémination proprement dite et d'éjection de la paillette peuvent être effectuées par l'insémination à l'aide d'une seule main tenant le corps du pistolet, l'organe de manoeuvre de la tige d'éjection étant actionné par le pouce de la même main, tandis que l'autre main sert à attraper l'animal et à le maintenir pendant l'insémination.Guns of the type under consideration are already known, for example from French patent application FR-A No 2501036, in which the ejection rod is hollow and the compressible casing fits on its end opposite the insemination tube. being housed in an elongated axial chamber of the body so as to follow the movement of the rod during the ejection movement, while the operating member of this rod, fixed on the side thereof, projects transversely out of the body. This same operating member also incorporates the additional suction means provided in the second application envisaged above. It is important to note that the three operations of penetration into the cesspool, of actual insemination and of ejection of the straw can be carried out by insemination using a single hand holding the body of the gun, l the actuator of the ejection rod being actuated by the thumb of the same hand, while the other hand is used to catch the animal and to maintain it during insemination.

Il se trouve toutefois que, la forme du pistolet étant essentiellement cylindrique et orientée suivant l'axe de la paillette, la manoeuvre n'en est pas toujours aisée, du moins pour certains des inséminateurs, d'autant que, pour l'insémination proprement dite l'écrasement de l'enveloppe compressible exige une position de la main très reculée sur le corps du pistolet. En outre, le mécanisme est relativement complexe, en raison, en partie, de la présence des organes spéciaux d'aspiration, entraînant ainsi des risques accrus d'encrassement et des difficultés notables d'entretien.However, it turns out that, the shape of the pistol being essentially cylindrical and oriented along the axis of the glitter, the maneuver is not always easy, at least for some of the inseminators, all the more so as, for the proper insemination said the crushing of the compressible envelope requires a position of the hand very far back on the body of the gun. In addition, the mechanism is relatively complex, due, in part, to the presence of the special suction members, thus leading to increased risks of fouling and notable maintenance difficulties.

Par ailleurs, il n'est pas très aisé, s'agissant d'une tige d'éjection tubulaire, de faire coïncider le canal central de cette tige avec une source d'air, en particulier si le flux de celle-ci arrive dans une direction radiale, c'est-à-dire perpendiculaire à cette tige d'éjection. Il faut en effet, dans ce cas, compte tenu que la tige d'éjection est montée coulissante, assurer la communication entre cette source d'air et ladite tige par des circuits relativement complexes, ce qui constitue un grave inconvénient.Furthermore, it is not very easy, in the case of a tubular ejection rod, to make the central channel of this rod coincide with a source of air, in particular if the flow of the latter arrives in a radial direction, that is to say perpendicular to this ejection rod. It is indeed necessary, in this case, given that the ejection rod is slidably mounted, ensuring communication between this air source and said rod by relatively complex circuits, which constitutes a serious drawback.

La présente invention a donc pour but de fournir un dispositif du type considéré, dont la manoeuvre soit aisée et la fabrication et l'entretien simplifiés.The present invention therefore aims to provide a device of the type considered, whose operation is easy and the manufacture and maintenance simplified.

A cet effet, l'invention a pour objet un dispositif d'insémination artificielle, du type comprenant, d'une part, un corps allongé présentant un conduit axial à l'extrémité avant duquel peut pénétrer et être maintenue l'extrémité d'un tube d'insémination renfermant de la semence, et dans lequel est montée coulissante une tige d'éjection du tube, solidaire d'un organe extérieur de manoeuvre, et, d'autre part, une réserve d'air reliée par un passage de refoulement à ladite extrémité avant du conduit axial du corps, ce dispositif étant caractérisé en ce que la tige d'éjection du tube présente au moins un méplat longitudinal définissant avec la paroi interne du conduit axial du corps au moins un canal longitudinal s'étendant depuis l'extrémité avant du conduit du corps à la partie postérieure dudit corps, de telle sorte que le canal soit en communication avec la réserve d'air.To this end, the invention relates to an artificial insemination device, of the type comprising, on the one hand, an elongated body having an axial duct at the front end of which can penetrate and be held the end of a insemination tube containing semen, and in which is slidably mounted a tube ejection rod, secured to an external operating member, and, on the other hand, an air reserve connected by a delivery passage at said front end of the axial duct of the body, this device being characterized in that the tube ejection rod has at least one longitudinal flat defining with the internal wall of the axial duct of the body at least one longitudinal channel extending from the the front end of the duct from the body to the rear part of said body, so that the channel is in communication with the air reserve.

On évite ainsi l'utlisation d'un passage ménagé axialement dans la tige d'éjection, et qui, du fait du faible diamètre de celle-ci, serait difficile à nettoyer. De préférence, il est prévu deux méplats diamétralement opposés sur cette tige, ce qui équilibre la pression de l'air pour sa pénétration dans la paillette.This avoids the use of a passage formed axially in the ejection rod, and which, because of the small diameter thereof, would be difficult to clean. Preferably, two diametrically opposite flats are provided on this rod, which balances the air pressure for its penetration into the straw.

Suivant une caractéristique d'un mode de réalisation, le pistolet comprend une pièce de préhension en forme de crosse de pistolet, solidaire du corps et disposée transversalement par rapport au conduit axial de celui-ci, tandis que l'enveloppe compressible est disposée sur la face avant de cette crosse, du côté du tube d'insémination.According to a characteristic of an embodiment, the pistol comprises a gripping part in the form of a pistol butt, integral with the body and arranged transversely with respect to the axial duct thereof, while the compressible casing is arranged on the front of this stick, on the side of the insemination tube.

Grâce à cet agencement, l'inséminateur peut saisir très aisément et fermement le pistolet par sa partie en forme de crosse et emboîter l'extrémité avant du conduit axial du corps sur l'extrémité de la paillette par un simple mouvement de poussée, cette paillette étant, en général, maintenue disponible par un distributeur ou même par la machine de remplissage elle-même, tel que cela est décrit dans la demande de brevet français FR-A No 2500296. Une fois la paillette bien sertie dans le conduit, l'inséminateur l'introduit dans le cloaque de l'animal en poussant à nouveau le pistolet à l'aide de la crosse, celle-ci lui servant également à bien orienter la paillette ou à lui faire suivre les sinuosités du conduit utéro-vaginal, à la suite de quoi une pression ferme des doigts sur l'enveloppe compressible placée devant la crosse permet l'éjection énergique de la semence. L'inséminateur doit alors ne pas relâcher sa pression sur l'enveloppe, afin de ne pas risquer de réaspirer la dose qu'il vient de déposer, jusqu'à ce qu'il ait retiré la paillette hors du cloaque. Un simple geste du pouce sur l'organe de manoeuvre de la tige d'éjection, fixé sur le corps, permet la séparation de la paillette et un nouveau cycle d'opérations complet.Thanks to this arrangement, the inseminator can very easily and firmly grip the pistol by its butt-shaped part and snap the front end of the axial duct of the body onto the end of the flake by a simple pushing movement, this flake being, in general, kept available by a distributor or even by the filling machine itself, as described in French patent application FR-A No 2500296. Once the straw has been well set in the conduit, the inseminator introduces it into the animal's cloaca by pushing the pistol again using the butt, which also serves to orient the glitter or to make it follow the sinuosities of the utero-vaginal duct, following which a firm pressure of the fingers on the compressible envelope placed in front of the stick allows the energetic ejection of the semen. The inseminator must then not release its pressure on the envelope, so as not to risk sucking up the dose that it has just deposited, until it has removed the straw from the cloaca. A simple gesture of the thumb on the actuator of the ejection rod, fixed on the body, allows the separation of the straw and a new complete cycle of operations.

Dans un mode de réalisation particulier, il peut également être prévu que le corps du pistolet, contenant le passage de refoulement d'air et la tige d'éjection du tube, présente une partie arrière cylindrique qui est montée coulissante dans une ouverture cylindrique prévue à l'extrémité supérieure de la crosse et à laquelle sont associés des moyens de blocage en position. De préférence, la partie supérieure de la crosse fait saillie vers l'avant par rapport à sa partie de préhension proprement dite et présente un conduit de liaison en saillie vers le bas, sur lequel se fixe l'orifice de l'enveloppe compressible et qui débouche, par ailleurs, dans le passage de refoulement. Avantageusement, ce conduit de liaison est constitué par un tube rapporté, engagé sur une partie de sa longueur dans une ouverture ménagée dans la partie supérieure de la crosse et débouchant dans l'ouverture de la crosse qui reçoit le corps.In a particular embodiment, it can also be provided that the gun body, containing the air delivery passage and the ejection rod of the tube, has a cylindrical rear part which is slidably mounted in a cylindrical opening provided at the upper end of the stick and with which are associated locking means in position. Preferably, the upper part of the stick protrudes forward relative to its grip part proper and has a connecting conduit projecting downwards, on which the orifice of the compressible envelope is fixed and which leads, moreover, into the discharge passage. Advantageously, this connecting conduit is constituted by an attached tube, engaged over a part of its length in an opening made in the upper part of the stick and opening into the opening of the stick which receives the body.

Grâce à ces dispositions complémentaires, les différentes pièces sont montées les unes dans les autres grâce à de simples ouvertures cylindriques qui sont d'un nettoyage très aisé, et le démontage en est également extrêmement simple, les moyens de blocage du corps dans la crosse étant, par exemple, constitués par une simple vis, tandis que l'enveloppe s'enclenche sur le tube de liaison et celui-ci dans la crosse.Thanks to these additional arrangements, the different parts are mounted one inside the other thanks to simple cylindrical openings which are very easy to clean, and disassembly is also extremely simple, the means for blocking the body in the stock being , for example, constituted by a simple screw, while the casing snaps onto the connecting tube and the latter in the butt.

De manière particulièrement avantageuse enfin, il peut être prévu que l'organe de manoeuvre de la tige d'éjection soit constitué par un poussoir fixé sur l'extrémité arrière de cette tige et faisant saillie à l'arrière du corps. Cette disposition favorise particulièrement l'éjection par simple mouvement du pouce sur l'arrière du pistolet.Particularly advantageously finally, it can be provided that the operating member of the ejection rod is constituted by a pusher fixed on the rear end of this rod and projecting from the rear of the body. This arrangement particularly promotes ejection by simple movement of the thumb on the rear of the pistol.

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

  • la fig. 1 représente une vue de côté et partiellement en coupe d'un pistolet d'insémination suivant un premier mode de réalisaiton conforme à l'invention;
  • la fig. 2 représente une vue en coupe du corps de ce pistolet prise suivant la ligne II-II de la fig. 1 ;
  • la fig. 3 représente une vue analogue à la fig. 1 pour un second mode de réalisation conforme à l'invention;
  • la fig. 4 est une vue partiellement en coupe d'un pistolet selon une variante de réalisation;
  • la fig. 5 est une vue en coupe axiale d'un autre mode de réalisation.
Other characteristics and advantages of the invention will emerge from the description which follows, by way of nonlimiting examples and with reference to the appended drawings in which:
  • fig. 1 shows a side view and partially in section of an insemination pistol according to a first embodiment according to the invention;
  • fig. 2 shows a sectional view of the body of this gun taken along line II-II of FIG. 1;
  • fig. 3 shows a view similar to FIG. 1 for a second embodiment in accordance with the invention;
  • fig. 4 is a partially sectional view of a pistol according to an alternative embodiment;
  • fig. 5 is an axial sectional view of another embodiment.

Le pistolet représenté comprend, d'une part, un corps cylindrique 1 en forme de canon et, d'autre part, une crosse transversale 2 à l'avant de laquelle est disposée une enveloppe d'air 3.The gun shown comprises, on the one hand, a cylindrical body 1 in the form of a barrel and, on the other hand, a transverse stock 2 at the front of which is an air envelope 3.

Le corps ou canon 1 est constitué par une pièce pleine, à l'arrière de laquelle est ménagé un chambrage cylindrique 4, et qui est traversée sur tout le reste de sa longueur et suivant son axe X-X par un conduit de guidage 5. A l'intérieur de ce conduit 5, se trouve montée coulissante une tige d'éjection 6 qui s'étend sur toute la longueur de ce conduit, à l'exception d'une partie avant relativement courte 5a, ainsi qu'à travers tout le chambrage 4, de manière à faire saillie à l'extérieur de celui-ci, pour porter, fixé sur elle, un manchon cylindrique 7 qui présente une tête arrondie semi-sphérique 7a formant poussoir. A son extrémité intérieure, le manchon 7 présente également une collerette 7b qui est montée coulissante dans le chambrage 4 et derrière laquelle s'engagent les deux bras d'une pièce en forme d'étrier 8 qui traversent des conduits transversaux parallèles ménagés dans la crosse 2. Un ressort de rappel 9 est enfin disposé entre le fond du chambrage 4 et le manchon 7 afin de ramener ce dernier en position arrière en appui sur l'étrier 8.The body or barrel 1 is constituted by a solid part, at the rear of which is formed a cylindrical recess 4, and which is traversed over all the rest of its length and along its axis XX by a guide duct 5. A l inside this conduit 5, is slidably mounted an ejection rod 6 which extends over the entire length of this conduit, with the exception of a relatively short front part 5a, as well as through the entire recess 4, so as to project outside of it, to carry, fixed on it, a cylindrical sleeve 7 which has a rounded semi-spherical head 7a forming a pusher. At its inner end, the sleeve 7 also has a collar 7b which is slidably mounted in the recess 4 and behind which engage the two arms of a stirrup-shaped part 8 which pass through parallel transverse conduits formed in the butt 2. A return spring 9 is finally disposed between the bottom of the recess 4 and the sleeve 7 in order to bring the latter back to the rear position bearing on the stirrup 8.

La partie 5a du conduit 5, demeurant libre à l'avant de la tige 6 lorsque celle-ci est maintenue en position arrière par le ressort 9 agissant sur son poussoir 7, permet l'introduction de l'extrémité d'une paillette ou tube-réservoir 10 dont le diamè- trecorrespond à celui de ce conduit, de manière à permettre un emboîtement serré.The part 5a of the conduit 5, remaining free at the front of the rod 6 when the latter is held in the rear position by the spring 9 acting on its pusher 7, allows the introduction of the end of a straw or tube -reservoir 10, the diameter of which corresponds to that of this duct, so as to allow a tight fitting.

La pièce de préhension 2 en forme de crosse présente une partie de préhension proprement dite adaptée à la forme de la main et qui se prolonge vers le haut par une partie supérieure 2a dans laquelle est ménagée une ouverture cylindrique traversante 11 dans laquelle est engagée la partie arrière cylindrique du corps 1, cette partie du corps y étant maintenue à l'aide d'une vis de blocage 12 traversant radialement la partie supérieure 2a de la crosse. La face arrière du corps 1 s'arrête en retrait par rapport à la face arrière 2b de la partie supérieure 2a de la crosse, de manière que l'étrier 8 puisse passer derrière ce corps pour maintenir la collerette 7b du manchon 7. La base de l'étrier 8 repose, par ailleurs, sur la face supérieure de cette partie 2a de la crosse.The grip-shaped piece 2 has a grip part proper adapted to the shape of the hand and which extends upwards by an upper part 2a in which is formed a through cylindrical opening 11 in which is engaged the part cylindrical rear of the body 1, this part of the body being held there by means of a locking screw 12 passing radially through the upper part 2a of the stick. The rear face of the body 1 stops in withdrawal with respect to the rear face 2b of the upper part 2a of the stick, so that the stirrup 8 can pass behind this body to maintain the flange 7b of the sleeve 7. The base of the stirrup 8 rests, moreover, on the upper face of this part 2a of the stick.

Cette même partie supérieure 2a de la crosse fait saillie vers l'avant par rapport à la partie principale 2 et un conduit 13 est ménagé dans cette partie en saillie, vers le bas, de manière à recevoir un tube 14 qui fait saillie hors de ce conduit vers le bas de manière à pénétrer dans l'orifice 3a que présente l'enveloppe 3. Cette dernière se présente sous la forme d'une poire de forme allongée réalisée en un matériau élastique compressible tel que du caoutchouc. Elle repose par sa surface latérale contre la face avant de la partie principale 2 de la crosse en s'étendant sur la plus grande partie de la hauteur de cette dernière.This same upper part 2a of the stick protrudes forward with respect to the main part 2 and a conduit 13 is formed in this protruding part, downwards, so as to receive a tube 14 which protrudes out of it. leads downwards so as to penetrate into the orifice 3a which the casing 3 presents. The latter is in the form of an elongated pear made of a compressible elastic material such as rubber. It rests by its lateral surface against the front face of the main part 2 of the stick, extending over the greater part of the height of the latter.

Le conduit 13 est ménagé dans la partie supérieure 2a de la crosse légèrement en avant du chambrage 4 du corps 1, de manière que l'extrémité du tube 14 puisse également pénétrerdans un passage de liaison 15 ménagé radialement dans le corps 1 et débouchant dans le conduit axial 5 de ce dernier. A partir de l'emplacement de ce conduit 15, deux passages de refoulement se trouvent ménagés entre le conduit 5 et la tige 6 jusqu'à l'extrémité avant de cette dernière, ces passages étant délimités par deux méplats parallèles 16 ménagés dans l'épaisseur de la tige 6 suivant des emplacements diamétralement opposés. Les passages 17 ainsi délimités font communiquer le passage 15, et par conséquent le tube 14 et l'enveloppe 3, avec l'extrémité avant 5a du conduit 5 et, par conséquent, avec l'intérieur de la paillette 10 qui y est fixée. Un joint d'étanchéité est prévu autour de la tige 6 et en arrière du conduit 15 pour éviter un échappement de l'air de l'enveloppe 3 en direction du chambrage 4.The conduit 13 is formed in the upper part 2a of the butt slightly in front of the recess 4 of the body 1, so that the end of the tube 14 can also penetrate into a connecting passage 15 formed radially in the body 1 and opening into the axial duct 5 of the latter. From the location of this conduit 15, two delivery passages are formed between the conduit 5 and the rod 6 to the front end of the latter, these passages being delimited by two parallel flats 16 formed in the thickness of the rod 6 at diametrically opposite locations. The passages 17 thus delimited communicate the passage 15, and consequently the tube 14 and the casing 3, with the front end 5a of the conduit 5 and, consequently, with the interior of the straw 10 which is fixed to it. A seal is provided around the rod 6 and behind the duct 15 to avoid an escape of the air from the envelope 3 in the direction of the recess 4.

Le fonctionnement du pistolet ainsi décrit est le suivant:

  • - en position normale d'utilisation, de l'air se trouve normalement remplir l'enveloppe 3 qui est en communiation avec l'extérieur par le tube 14 et le conduit 5. L'inséminateur saisit alors fermement la crosse 2 du pistolet et applique l'extrémité avant du canon 1 sur le distributeur ou la machine qui porte les paillettes de semence 10 afin que l'une de ces paillettes vienne s'emboîter dans l'extrémité 5a du conduit sous le seul effet de la pression de la paume de la main sur la crosse 2;
  • - l'inséminateur ayant alors retiré le pistolet, et par conséquent la paillette qui est engagée, il amène cette dernière à l'intérieur du cloaque de l'animal à inséminer en utilisant également dans ce mouvement l'appui de sa paume sur la crosse 2, cette dernière facilitant également des mouvements légers dans le sens latéral;
  • - l'inséminateur presse alors fermement sur l'enveloppe ou poire 3 et la quantité d'air importante, qui se trouve ainsi éjectée dans le tube 14 et renvoyée vers l'avant par les passages de refoulement 17, repousse la dose de semence contenue dans la paillette 10 jusqu'à l'emplacement optimal à l'intérieur du tract utéro-vaginal de l'animal;
  • - en évitant de relâcher sa pression sur l'enveloppe 3, l'inséminateur retire le pistolet et la paillette, à la suite de quoi, par un simple actionnement du pouce sur le poussoir 7a, la tige 6 éjecte la paillette 10 hors du corps 1 du pistolet.
The operation of the gun thus described is as follows:
  • - in normal position of use, air is normally filling the envelope 3 which is in communication with the outside by the tube 14 and the conduit 5. The inseminator then firmly grips the butt 2 of the gun and applies the front end of the barrel 1 on the distributor or the machine which carries the seed flakes 10 so that one of these flakes fits into the end 5a of the conduit under the sole effect of the pressure of the palm of hand on stick 2;
  • - the inseminator having then withdrawn the pistol, and consequently the flake which is engaged, he brings the latter inside the cesspool of the animal to inseminate by also using in this movement the support of his palm on the butt 2, the latter also facilitating light movements in the lateral direction;
  • - the inseminator then presses firmly on the envelope or pear 3 and the large quantity of air, which is thus ejected into the tube 14 and returned towards the front by the delivery passages 17, pushes back the dose of semen contained in the straw 10 to the optimal location inside the utero-vaginal tract of the animal;
  • - avoiding releasing its pressure on the envelope 3, the inseminator removes the gun and the glitter, after which, by a simple actuation of the thumb on the pusher 7a, the rod 6 ejects the glitter 10 from the body 1 of the pistol.

Le pistolet représenté à la fig. 3 présente une partie importante de son mécanisme identique à celle de la réalisation précédente et c'est la raison pour laquelle toute la partie supérieure de ce pistolet est représentée en vue extérieure.The gun shown in fig. 3 has an important part of its mechanism identical to that of the previous embodiment and this is the reason why the entire upper part of this gun is shown in external view.

Par contre, comme le montre la fig. 3, la partie principale de la crosse présente une fente d'assez grande profondeur, s'étendant à la fois sur l'arrière en 18a et à son extrémité inférieure en 18b. A l'intérieur de cette double fente, se trouve logé un levier à deux bras 19 qui est articulé en 19a entre les deux flasques latéraux que définissent les fentes 18a et 18b, l'un des bras 19b, de grande longueur, s'étendant à travers la fente 18a de manière que son extrémité vienne se placer derrière la collerette-poussoir 7a du manchon 7, tandis que son autre bras 19c, plus court, est logé dans la fente inférieure 18.However, as shown in fig. 3, the main part of the stick has a fairly deep slot, extending both over the rear at 18a and at its lower end at 18b. Inside this double slot, is housed a lever with two arms 19 which is articulated in 19a between the two lateral flanges that define the slots 18a and 18b, one of the arms 19b, of great length, extending through the slot 18a so that its end is placed behind the push-flange 7a of the sleeve 7, while its other arm 19c, shorter, is housed in the lower slot 18.

Il est en outre prévu une pièce analogue à la détente d'un pistolet et qui est constituée par un étrier s'étendant sur toute la hauteur de la crosse 2 et dont les ailes viennent entourer l'enveloppe compressible 3 remplie d'air. Cet étrier 20 est articulé transversalement en 20a par son extrémité supérieure sur la crosse 2, tandis qu'à son extrémité inférieure, il est prévu une tige transversale 20b qui traverse, par ailleurs, deux fentes 21 ménagées dans les flasques inférieurs de la crosse, suivant un arc de cercle centré sur l'articulation 20a. En position normale, c'est-à-dire l'enveloppe 3 étant normalement remplie et non écrasée, l'étrier 20 s'étend à peu près verticalement sur la crosse, et la tige transversale 20b reste placée à l'avant des fentes 21, en avant d'un bec 19d ménagé à l'extrémité du bras inférieur 19c du levier et dirigé vers le haut. Il est enfin prévu un ressort de rappel 22 qui est disposé entre le fond de la fente 18a et le bras allongé 19b du levier.There is also provided a part similar to the trigger of a pistol and which is constituted by a stirrup extending over the entire height of the butt 2 and whose wings surround the compressible envelope 3 filled with air. This stirrup 20 is articulated transversely at 20a by its upper end on the butt 2, while at its lower end, a transverse rod 20b is provided which passes, moreover, two slots 21 formed in the lower flanges of the butt, following an arc centered on the joint 20a. In the normal position, that is to say the casing 3 being normally filled and not crushed, the stirrup 20 extends approximately vertically on the stick, and the transverse rod 20b remains placed in front of the slots 21, in front of a spout 19d formed at the end of the lower arm 19c of the lever and directed upwards. Finally, a return spring 22 is provided which is disposed between the bottom of the slot 18a and the elongated arm 19b of the lever.

Ce dispositif fonctionne d'une manière identique à celui des fig. 1 et 2, à la seule différence suivante:

  • - une fois la paillette introduite dans le cloaque de l'animal, l'inséminateur écrase l'enveloppe 3 à l'aide des doigts par l'intermédiaire d'un appui sur la détente-étrier 20 qui bascule ainsi vers l'arrière. Dans ce mouvement, la tige transversale 20b recule dans les fentes 21 et vient se verrouiller derrière le bec 19d du bras 19 qui recule provisoirement en écrasant le ressort 22. Ainsi, du fait du maintien de l'étrier en position arrière grâce à l'appui du bec 19d, l'enveloppe 3 demeure comprimée et l'inséminateur peut retirer le pistolet sans avoir à prendre garde à bien maintenir les doigts écrasés sur la crosse. De ce fait, on évite tout risque d'aspiration de la dose éjectée hors de la paillette;
  • - une fois le pistolet retiré, lors de l'application du pouce sur le poussoir 7a pour éjecter la paillette 10, le poussoir prend également appui sur l'extrémité du bras allongé 19b du levier et fait basculer ce dernier, libérant ainsi la tige 20b et l'étrier 20 qui revient en position normale. L'enveloppe 3 se remplit alors à nouveau d'air pour l'opération suivante.
This device operates in a manner identical to that of FIGS. 1 and 2, with the following only difference:
  • - Once the straw has been introduced into the cesspool of the animal, the inseminator crushes the envelope 3 using the fingers by pressing on the trigger-stirrup 20 which thus tilts backwards. In this movement, the transverse rod 20b moves back into the slots 21 and is locked behind the spout 19d of the arm 19 which temporarily backs up by crushing the spring 22. Thus, due to the holding of the stirrup in the rear position thanks to the support of the spout 19d, the casing 3 remains compressed and the inseminator can withdraw the pistol without having to take care to keep the crushed fingers firmly on the butt. Therefore, any risk of aspiration of the dose ejected out of the straw is avoided;
  • - once the pistol is removed, when applying the thumb to the pusher 7a to eject the straw 10, the pusher also bears on the end of the elongated arm 19b of the lever and causes the latter to tilt, thereby releasing the rod 20b and the stirrup 20 which returns to the normal position. The envelope 3 then fills with air again for the next operation.

Selon la variante de réalisation illustrée en fig. 4, le dispositif d'insémination artificielle ou pistolet comprend un canon 1 similaire à celui visible en fig. 1, ce canon présentant toutefois ici la particularité de comporter une collerette 23 située au voisinage de sa partie postérieure et deux joints toriques 24, 25, délimitant entre eux un espace annulaire 26 dans lequel débouche un orifice radial 27 traversant le canon 1.According to the variant embodiment illustrated in FIG. 4, the artificial insemination device or pistol comprises a barrel 1 similar to that visible in FIG. 1, this barrel however having the particularity here of comprising a flange 23 situated in the vicinity of its rear part and two O-rings 24, 25, delimiting between them an annular space 26 into which opens a radial orifice 27 passing through the barrel 1.

Sur la partie postérieure du canon est emmanché de façon étanche un raccord 28 en forme de manchon, ce raccord venant se positionner sur les deux joints toriques 24 et 25 et qui assurent son étanchéité. Ce raccord comporte un embout fileté 29 traversé par un orifice 30, celui-ci débouchant dans l'espace annulaire 26 du canon et étant orienté pour être en regard de l'orifice 27. L'embout fileté 29 est relié par vissage à un raccord 31, lui-même accouplé à une source d'air faiblement comprimé. Ce raccord 31 renferme, de façon connue, une valve (non représentée) pilotée de l'extérieur par un bouton-poussoir 33 commandé par une gâchette 34. Une action de la main sur cette gâchette ou détente 34, a pour effet d'enfoncer le bouton-poussoir 33 et de libérer, à la demande, une certaine quantité d'air qui est acheminée jusqu'à la paillette ou tube réservoir 10 par les orifices 30 et 27 qui communiquent eux-mêmes avec les passages 17 délimités par les méplats 16 réalisés le long de la tige d'éjection 6. La partie éjection proprement dite est similaire à celle visible en fig. 1 comme illustré sur cette fig. 4.On the rear part of the barrel is tightly fitted a connector 28 in the form of a sleeve, this connector being positioned on the two O-rings 24 and 25 and which ensure its sealing. This connector comprises a threaded end piece 29 crossed by an orifice 30, the latter opening into the annular space 26 of the barrel and being oriented so as to be opposite the orifice 27. The threaded end piece 29 is connected by screwing to a fitting 31, itself coupled to a source of weakly compressed air. This connector 31 contains, in known manner, a valve (not shown) controlled from the outside by a push button 33 controlled by a trigger 34. An action of the hand on this trigger or trigger 34, has the effect of pushing the push button 33 and releasing, on demand, a certain amount of air which is conveyed to the straw or reservoir tube 10 through the orifices 30 and 27 which communicate themselves with the passages 17 delimited by the flats 16 produced along the ejection rod 6. The ejection part proper is similar to that visible in FIG. 1 as illustrated in this fig. 4.

Selon un autre mode de réalisation tel qu'illustré en fig. 5, le pistolet est de type linéaire et fonctionne à la manière d'une pompe à vélo. Dans ce cas, le canon 1 comporte sur sa partie postérieure une double collerette annulaire 35, 36 délimitant entre elles un logement annulaire 37, dans lequel est encastré un joint à lèvres 38 assurant l'étanchéité entre le corps du canon et une coquille 39 en forme de capuchon montée mobile axialement en translation alternative par rapport audit canon, cette coquille définissant avec un chambrage 40, ménagé dans la face postérieure du canon, une chambre 41 d'accumulation d'air. Cette co- qu iIIe 39 est sollicitée en permanence vers l'arrière, c'est-à-dire dans une direction opposée à la paillette 10 par un ressort spiralé 42, prenant appui dans le fond du chambrage 40 et contre la face frontale interne 39, de la coquille 39.According to another embodiment as illustrated in FIG. 5, the gun is of the linear type and operates in the manner of a bicycle pump. In this case, the barrel 1 has on its rear part a double annular flange 35, 36 delimiting between them an annular housing 37, in which is embedded a lip seal 38 ensuring the seal between the barrel body and a shell 39 in form of cap mounted to move axially in alternative translation relative to said barrel, this shell defining with a recess 40, formed in the rear face of the barrel, a chamber 41 for air accumulation. This hull iIIe 39 is permanently biased towards the rear, that is to say in a direction opposite to the straw 10 by a spiral spring 42, bearing on the bottom of the recess 40 and against the internal front face 39, shell 39.

Le joint 38 comporte une lèvre souple 38, légèrement inclinée vers l'extérieur en direction de la paroi interne périphérique 392 de la coquille 39, cette lèvre étant dirigée dans le sens de la poussée du ressort 42 (flèche F), de sorte que, pendant le déplacement en translation de la coquille 39 en direction de la paillette 10, la lèvre 38, du joint 38 est appliquée avec étanchéité contre la paroi interne 392, alors que, lorsque la coquille revient à sa position initiale par un coulissement de sens contraire (flèche F), cette lèvre 38, s'efface radialement vers l'intérieur pour permettre le passage et l'introduction dans la chambre 41 de l'air extérieur par un interstice annulaire 43 ménagé entre la collerette 35 du canon et la paroi interne 39z de la coquille. En d'autres termes, le recul de la coquille 39 dans la direction de la flèche F permet un armement du pistolet par introduction et accumulation d'air dans la chambre 41, tandis que le déplacement de cette même coquille dans le sens opposé assure le transfert de cet air contenu dans la chambre 41 dans la paillette 10 par passage dans les couloirs axiaux 17 définis par les méplats 16 réalisés sur la tige d'éjection 6. Cette tige d'éjection 6 est fixée, par sa partie arrière 61, dans un bossage interne 44 de la coquille et est guidée sur toute sa longueur dans le conduit 5 du canon.The seal 38 comprises a flexible lip 38, slightly inclined towards the outside in the direction of the peripheral internal wall 39 2 of the shell 39, this lip being directed in the direction of the thrust of the spring 42 (arrow F), so that , during the translational movement of the shell 39 in the direction of the straw 10, the lip 38 of the seal 38 is applied with sealing against the internal wall 39 2 , whereas, when the shell returns to its initial position by sliding opposite direction (arrow F), this lip 38, fades radially inward to allow the passage and introduction into the chamber 41 of the outside air by an annular gap 43 formed between the collar 35 of the barrel and the inner wall 39 z of the shell. In other words, the retraction of the shell 39 in the direction of the arrow F allows the pistol to be cocked by introducing and accumulating air in the chamber 41, while the displacement of this same shell in the opposite direction ensures the transfer of this air contained in the chamber 41 in the straw 10 by passing through the axial passages 17 defined by the flats 16 produced on the ejection rod 6. This ejection rod 6 is fixed, by its rear part 6 1 , in an internal boss 44 of the shell and is guided over its entire length in the duct 5 of the barrel.

Comme illustré sur cette fig. 5, la paillette 10 peut comporter, à au moins l'une de ses extrémités, un ourlet 45 et, si nécessaire, cet ourlet peut être répété à l'autre extrémité opposée.As illustrated in this fig. 5, the sequin 10 can have, at at least one of its ends, a hem 45 and, if necessary, this hem can be repeated at the other opposite end.

Comme dans les autres modes de réalisation, un étrier 46 solidarise le canon avec la coquille 39, cet étrier ayant ses deux branches en appui sur la collerette annulaire 35 du canon afin d'éviter l'expulsion de la coquille 39. La course en translation de la coquille 39 correspond à la course de la tige d'éjection 6 qui lui est solidaire, dont la course elle-même est limitée par la butée de la face frontale avant de cette tige avec l'extrémité arrière du tube d'insémination. Le contact entre la tige et le tube est suffisant pour être perçu par la main de l'opérateur qui, lorsqu'il rencontre cette résistance, comprend que l'opération d'insémination est terminée, et peut alors extraire le tube du cloaque de l'animal afin de poursuivre une poussée sur la coquille 39 en direction du tube pour que la tige d'éjection 6 provoque son expulsion du nez du corps 1.As in the other embodiments, a stirrup 46 secures the barrel to the shell 39, this stirrup having its two arms bearing on the annular flange 35 of the barrel in order to avoid expulsion of the shell 39. The travel in translation of the shell 39 corresponds to the stroke of the ejection rod 6 which is integral with it, the stroke of which itself is limited by the stop on the front end face of this rod with the rear end of the insemination tube. The contact between the rod and the tube is sufficient to be perceived by the hand of the operator who, when he meets this resistance, understands that the insemination operation is finished, and can then extract the tube from the cesspool animal in order to continue pushing on the shell 39 in the direction of the tube so that the ejection rod 6 causes its expulsion from the nose of the body 1.

Claims (17)

1. An artificial insemination device of the type comprising, on the one hand, an elongate body (1 ) provided with an axial conduit (5) into the front end (5a) of which there can penetrate and be held fixed the end of an insemination tube (10) containing a dose of semen, an ejection rod (6) of the tube being slidably mounted in the axial conduit of the body and being rigid with an outer control device (7a), the said front end (5a) of the axial conduit of the body being connected by a discharge passage (17) to an air supply for ensuring the ex- plusion of the semen, which device is characterized in that the ejection rod of the tube has at least one longitudinal flat part (16) defining with the internal wall of the axial conduit (5) of the body at least one longitudinal duct (17) which extends from the front end (5a) of the conduit of the body to the rear portion of the said body in such a way that this duct communicates with the air supply.
2. A device as claimed in Claim 1, characterized in that the ejection rod (6) has a cylindrical cross- section and comprises two flat parts (16) which are diametrically opposed and extend parallel to its generatrices, the two ducts (17) defined by these flat parts communicating with the air supply.
3. A device as claimed in Claims 1 and 2, characterized in that the body(1) is associated with a gripping device (2) in the form of a gun grip which is directed transversely relative to the axial conduit (5) thereof, the air supply being formed by a compressible enveloppe (3) disposed on the front face of this grip (2) on the insemination tube (10) side.
4. A device as claimed in any one of Claims 1 to 3, characterized in that the body (1) of the gun has a cylindrical rear portion which is slidably mounted in a cylindrical aperture (11) which is provided at the upper end (2a) of the grip (2) and with which means (12) for locking in position are associated.
5. A device as claimed in any one of Claims 1 to 4, characterized in that the upper part (2a) of the grip projects forwards relative to its actual gripping section (2) and has a downwardly projecting connection conduit (14) on which the opening (3a) of the compressible enveloppe (3) is secured and which further opens into the discharge duct or ducts (17).
6. A device as claimed in Claim 5, characterized in that the connection conduit (14) is formed by an attached tube engaging over a part of its length in an opening (13) provided in the upper part (2a) of the grip and opening into the apeture (11) of the grip which receives the body(1).
7. A device as claimed in Claim 5, characterized in that the body (1) has a transverse passage (15) which opens into the discharge duct or ducts(17) and in which the tube (14) forming the connection conduit engages.
8. A device as claimed in any one of Claims 1 to 5, characterized in that the control device (7a) of the ejection rod is formed by a pusher (7) secured on the rear end of this rod (6) and projecting at the rear of the body (1).
9. A device as claimed in Claim 8, characterized in that the pusher (7) has a front collar (7b) which slides in a cylindrical chamber (4) provided at the rear of the body (1 ), and the rear face of the latter is set back with respect to that of the upper section (2a) of the grip, a locking member (8) beind mounted transversely through this upper section behind the said collar.
10. A device as claimed in any one of Claims 1 to 9, characterized in that it further comprises a member (20) for retaining the envelope in the compressed state, disposed so as to bear against this envelope (3) and rigid with means (19) for locking this member in the retaining position, which means are in turn actuated in the release direction by the control device (7a) of the ejection rod (6) when this latter device is operated.
11. A device as claimed in Claim 10, characterized in that the retention member (20) is formed by a part articulated at one end on the grip (2) and provided at the other end with a locking finger (20b) which cooperates with a nose (19d) of an articulated lever (19), the opposite end of which is movable with the control device (7a) of the rod.
12. A device as claimed in Claim 1, characterized in that the discharge duct (17) com- municateswith an independent air supply (32) by means of the clearance of a connection (28) secured in a tight manner on the rear section of the body, this air supply comprising a connection (31 ) provided with a valve quided from the exterior by a push button (33) and a control trigger (34).
13. A device as claimed in Claim 12, characterized in that the rear section of the body comprises two 0-ring seals (24, 25) defining an annular passage(26) into which there opens a radial aperture (27) passing through the body, and communicating with the discharge duct (17).
14. A device as claimed in Claim 1, characterized in that the discharge duct (17) opens into an air chamber defined by the rear section of the body and a casing (39) in the form of a hood which is displaceable in alternate directions relative to this body, a lip seal (38) ensuring the tightness of the air chamber when the casing (39) is displaced in the direction of the insemination tube, but, on the other hand, allowing outer air to pass into this chamber when this casing returns to the rear position under the effect of a return spring (42).
15. A device as claimed in Claim 14, characterized in that the ejection rod (6) is rigid with the sliding casing, the path of this casing being limited by the stop of the front end of the ejection rod (6) with the rear end of the insemination tube.
16. A device as claimed in any one of Claims 1 to 15, characterized in that the insemination tube comprises a rim at at least one of its ends.
17. A device as claimed in any one of Claims 14 and 15, characterized in that the casing is mobile but is retained coupled to the body (1) by a clamp (46) bearing on an annular collar (35) projecting over the periphery of the body (1).
EP82402269A 1982-01-26 1982-12-13 Device for artificial insemination, particularly for turkeys Expired EP0084749B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8201173 1982-01-26
FR8201173A FR2520225A1 (en) 1982-01-26 1982-01-26 DEVICE FOR ARTIFICIAL INSEMINATION, IN PARTICULAR FOR TURKEYS

Publications (3)

Publication Number Publication Date
EP0084749A2 EP0084749A2 (en) 1983-08-03
EP0084749A3 EP0084749A3 (en) 1983-08-10
EP0084749B1 true EP0084749B1 (en) 1985-07-03

Family

ID=9270316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82402269A Expired EP0084749B1 (en) 1982-01-26 1982-12-13 Device for artificial insemination, particularly for turkeys

Country Status (4)

Country Link
US (1) US4522621A (en)
EP (1) EP0084749B1 (en)
DE (1) DE3264589D1 (en)
FR (1) FR2520225A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5312333A (en) * 1992-04-03 1994-05-17 United States Surgical Corporation Endoscopic material delivery device
FR2768325B1 (en) * 1997-09-16 1999-11-19 Instr Medecine Veterinaire CATHETER FOR ARTIFICIAL INSEMINATION OF BIRDS, ESPECIALLY TURKEYS, AND METHOD FOR PRODUCING SUCH A CATHETER
US8235256B2 (en) * 2004-02-12 2012-08-07 Kyphon Sarl Manual pump mechanism and delivery system
US8323178B2 (en) * 2006-04-28 2012-12-04 Ainley Jr Frank Animal insemination sheath and methods of use
US7344492B2 (en) * 2006-04-28 2008-03-18 Ainley Jr Frank Animal insemination sheath
US20100121278A1 (en) * 2008-11-13 2010-05-13 David Fowler Super elastic loop extraluminal materials delivery instrument
US10182896B2 (en) 2016-03-08 2019-01-22 Frank Ainley Animal insemination sheath and methods of use
US11103336B2 (en) 2016-03-08 2021-08-31 Frank Ainley Animal insemination and in-vitro fertilization sheath, cap and methods of use
US10292371B2 (en) * 2016-03-14 2019-05-21 Andrea Cabibi Method and apparatus for effecting sperm collection and artificial insemination in small birds
KR102681119B1 (en) * 2022-03-21 2024-07-04 박영섭 Artificial insemination apparatus for livestock

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2942603A (en) * 1958-01-08 1960-06-28 Paul G T Geyer Artificial insemination gun
FR1394416A (en) * 1963-04-15 1965-04-02 Capsule for the conservation of a fluid and its ejection, and method of artificial insemination by means of this capsule
US3343539A (en) * 1964-10-22 1967-09-26 Moorhouse Turkey Hatchery Inc Piston type artificial insemination syringe having stroke adjusting means
US3880210A (en) * 1973-08-02 1975-04-29 Arthur J Randolph Straw charging and feeding apparatus
US4082121A (en) * 1976-08-25 1978-04-04 Oxford Laboratories Inc. Liquid dispenser with means for automatically purging air therefrom during liquid loading
FR2517538A1 (en) * 1981-12-03 1983-06-10 Cassou Robert DEVICE FOR ARTIFICIAL INSEMINATION, IN PARTICULAR FOR POULTRY

Also Published As

Publication number Publication date
DE3264589D1 (en) 1985-08-08
US4522621A (en) 1985-06-11
FR2520225A1 (en) 1983-07-29
EP0084749A2 (en) 1983-08-03
FR2520225B1 (en) 1984-04-20
EP0084749A3 (en) 1983-08-10

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