EP1020164B1 - Insemination catheter for animals and method of making the same - Google Patents
Insemination catheter for animals and method of making the same Download PDFInfo
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- EP1020164B1 EP1020164B1 EP99124968A EP99124968A EP1020164B1 EP 1020164 B1 EP1020164 B1 EP 1020164B1 EP 99124968 A EP99124968 A EP 99124968A EP 99124968 A EP99124968 A EP 99124968A EP 1020164 B1 EP1020164 B1 EP 1020164B1
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- Prior art keywords
- injection tube
- connection
- area
- insemination catheter
- catheter
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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 invention relates to an insemination catheter for animals, in particular for pigs, with an elongated, flexurally elastic Injection tube, which at its front, in the uterus of the Animal insertable end with a soft elastic Whyspfropfen is provided.
- the invention is further directed to a method directed to the manufacture of such a catheter.
- Such catheters are used for the artificial insemination of useful domestic animals, used for example by pigs, e.g. in document US2106635.
- the soft-elastic Guide plug is used when inserting the catheter To avoid injury to the uterus safely.
- the elongated Injection tube through which after insertion of the catheter the seminal fluid is injected must be flexible be, but it should have a minimum bending stiffness, the ensures that the tube can not bend during insertion, so that it is ensured that the catheter with its front End deep enough into the uterus of the animal is insertable and while also for the injectable seminal fluid throughout remains.
- the material for the guide plug is a soft polyurethane foam proved to be particularly advantageous, the requirements to the hygiene, dimensional stability at the same time Resilience and processability to the various required Forms of grafting perfectly fulfilled.
- the object of the invention is an insemination catheter of the above mentioned type to create a secure connection between injection tube and guide plug without additional Adhesives or the like is ensured.
- the injection tube mechanically in the region of connection to the guide plug roughened and that the NASAspfropfen of polyurethane foam exists and directly to the injection tube at the mechanically roughened surface is foamed.
- the injection tube can be advantageous from polypropylene, polyethylene or mixtures of the two materials or else from a coextrudate of an inner polypropylene tube and a outer polymer coating consist.
- the roughness depth or groove depth is after mechanical roughening the surface of the injection tube preferably between 0.01 and 0.1 mm.
- the injection tube is in the connection area roughened by grinding what with for example a grindstone, a grinding wheel or the like happen can. It is also possible to mechanically roughen Surface by at least one recess or groove in the connection area manufacture of the injection tube or such Grooving or groove in addition to roughening by grinding the Provide pipe surface.
- the recess or groove produced also a depression into which the polyurethane foam lather can be so a positive connection between to create himself and the injection tube.
- Injection tube in addition to the mechanical roughening of his Surface of a chemical pretreatment is subjected to what for example, by corona treatment, by flaming, by etching or fluorination of the front pipe end can happen.
- This chemical pretreatment is preferably carried out after mechanical roughening of the surface.
- an elongated, bending elastic injection tube preferably made Polypropylene, polyethylene or mixtures thereof or even from a coextrudate of polypropylene and a polymer on his one
- a connecting portion forming end first mechanically is roughened and then with his mechanical roughened connection area is introduced into a mold, whereupon a solidifying polyurethane mass in the mold is injected so as to a foamed directly to the injection tube Form guide plug.
- the injection tube before insertion into the mold be chemically pretreated his end, which is appropriate done by a corona treatment, causing the mechanical already roughened surface oxidizes and so an even larger Adhesive strength is generated.
- the treatment of the surface of the pipe by flaming reach or fluorinate or etch the tube.
- the mechanical pretreatment of the injection tube in the connection area can by grinding, for example with a Grinding wheel or a grindstone happen; alternative or additionally, the tube may also be in its connection area a recess or groove obtained by means of a suitable Turning tool can be produced.
- 10 indicates an insemination catheter for Pigs, which consist essentially of an elongated, flexurally elastic Injection tube 11 which, at its front, in the uterus of the sow insertable end 12 with a soft elastic Guide plug 13 is provided.
- the injection tube 11 consists of a polypropylene tube 14, which in the connection region 15 to the guide plug 13 a mechanically roughened surface 16 has.
- the guide plug 13 is made of a flexible polyurethane foam, the directly at the front end 12 in the connection area 15th is foamed at the injection tube 11. It represents the mechanical Roughened surface 16 excellent adhesion of Polyurethane graft on the injection tube safe.
- the average roughness depth or groove depth s of the roughened surface 16 in the exemplary embodiment is approximately 0.25 mm, while the total wall thickness d of the polypropylene tube 14 is approximately 1 mm.
- the injection tube 11 is ground with a grindstone or a grinding wheel of suitable grain size.
- the injection tube in the connection area can also be provided with a groove or recess (not shown) which spirals, for example, over the length of the connection area around the tube and, like the mechanically roughened surface, recesses forms, in which the polyurethane foam of the plug can foam and thus creates a kind of positive connection between itself and the injection tube, so that the plug can not peel even when he absorbs moisture that reaches into the connection area.
- a groove or recess (not shown) which spirals, for example, over the length of the connection area around the tube and, like the mechanically roughened surface, recesses forms, in which the polyurethane foam of the plug can foam and thus creates a kind of positive connection between itself and the injection tube, so that the plug can not peel even when he absorbs moisture that reaches into the connection area.
- the invention is not limited to the illustrated and described Embodiment limited. So it is possible, for example, instead of the polypropylene tube a polyethylene tube, one of a polyethylene-polypropylene blend or one made from a polypropylene coextrudate and polyethylene or mixtures thereof. Of the Guiding plug can also be a different shape than the one shown receive.
- the surface 16 at the end portion of the tube may be adjacent the mechanical pretreatment also an additional, chemical Treatment, what by a corona treatment, by Beffämmung or fluorination of the tube can be done.
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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)
- Materials For Medical Uses (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Medicinal Preparation (AREA)
Abstract
Description
Die Erfindung betrifft einen Besamungskatheter für Tiere, insbesondere für Schweine, mit einem langgestreckten, biegeelastischen Injektionsrohr, das an seinem vorderen, in den Uterus des Tieres einführbaren Ende mit einem weichelastischen Führungspfropfen versehen ist. Die Erfindung ist ferner auf ein Verfahren zur Herstellung eines solchen Katheters gerichtet.The invention relates to an insemination catheter for animals, in particular for pigs, with an elongated, flexurally elastic Injection tube, which at its front, in the uterus of the Animal insertable end with a soft elastic Führungspfropfen is provided. The invention is further directed to a method directed to the manufacture of such a catheter.
Derartige Katheter werden für die künstliche Besamung von Nutz-Haustieren, beispielsweise von Schweinen verwendet, wie z.B. im Dokument US2106635 beschrieben. Der weichelastische Führungspfropfen dient dazu, beim Einführen des Katheters Verletzungen des Uterus sicher zu vermeiden. Das langgestreckte Injektionsrohr, durch das nach Einführen des Katheters die Samenflüssigkeit injiziert wird, muß zwar biegeelastisch sein, soll dabei jedoch eine Mindest-Biegesteifigkeit haben, die gewährleistet, daß das Rohr beim Einführen nicht abknicken kann, so daß sichergestellt ist, daß der Katheter mit seinem vorderen Ende genügend tief in den Uterus des Tieres einschiebbar ist und dabei auch für die zu injizierende Samenflüssigkeit durchgängig bleibt.Such catheters are used for the artificial insemination of useful domestic animals, used for example by pigs, e.g. in document US2106635. The soft-elastic Guide plug is used when inserting the catheter To avoid injury to the uterus safely. The elongated Injection tube through which after insertion of the catheter the seminal fluid is injected, must be flexible be, but it should have a minimum bending stiffness, the ensures that the tube can not bend during insertion, so that it is ensured that the catheter with its front End deep enough into the uterus of the animal is insertable and while also for the injectable seminal fluid throughout remains.
Bei diesen Kathetern ist neben der geforderten Mindeststeifigkeit des Injektionsrohres auch die Haftung des Führungspfropfens am Rohr von besonderer Wichtigkeit. Es darf nämlich unter keinen Umständen dazu kommen, daß sich der Pfropfen vom vorderen Ende des Injektionsrohres löst, da er in einem solchen Fall nur operativ aus dem Uterus des Tieres entfernt werden kann. Auch kann es zu Verletzungen durch die harte, vordere Kante des Injektionsrohres kommen, wenn sich der Pfropfen beim Einführen in den Uterus auf dem Röhrchen verschiebt und nach hinten verrutscht.In these catheters is in addition to the required minimum stiffness the injection tube and the liability of the Führungspfropfens on the pipe of particular importance. It must not under any It may happen that the plug is from the front end of the injection tube, since in such a case it is only operative can be removed from the uterus of the animal. Also can It causes injury through the hard, front edge of the injection tube come when the plug when inserting into the Uterus shifts on the tube and slipped backwards.
Als Material für den Führungspfropfen hat sich ein Polyurethan-Weichschaum als ganz besonders vorteilhaft erwiesen, der die Anforderungen an die Hygiene, Formstabilität bei gleichzeitiger Nachgiebigkeit und Verarbeitbarkeit zu den verschiedenen, erforderlichen Formen des Pfropfens bestens erfüllt.The material for the guide plug is a soft polyurethane foam proved to be particularly advantageous, the requirements to the hygiene, dimensional stability at the same time Resilience and processability to the various required Forms of grafting perfectly fulfilled.
Als Werkstoffe für das Injektionsröhrchen kommen grundsätzlich verschiedene Kunststoffe in Betracht. Unter dem Gesichtspunkt der geforderten Biegesteifigkeit des Rohres und der Wirtschaftlichkeit bei seiner Herstellung haben sich Rohre aus Polypropylen als besonders vorteilhaft erwiesen. Von Nachteil bei diesem Werkstoff ist es jedoch, daß bislang eine zufriedenstellende Haftung zwischen Polyurethan und Polypropylen nicht erreicht wurde, wenn der Führungspfropfen direkt am Injektionsrohr aus Polypropylen angeschäumt wurde. Vielmehr war es bei dieser Werkstoffpaarung bislang erforderlich, den Führungspfropfen separat herzustellen und dann unter Verwendung eines geeigneten Klebstoffes am Injektionsrohr anzukleben. Diese Vorgehensweise ist sehr arbeitsaufwendig und kostenintensiv. Auch Rohre aus anderen Kunststoffen wie beispielsweise aus Polyethylen bieten nicht die erforderliche Haftung eines direkt angeschäumten Polyurethanpfropfens, insbesondere dann nicht, wenn Feuchtigkeit an die Verbindungsstelle der beiden Teile gelangt. Allein bei Verwendung eines Rohres aus Polyvinylchlorid konnte eine zufriedenstellende Haftung des daran direkt angeschäumten Polyurethanpfropfens sichergestellt werden, jedoch ist PVC als Werkstoff für die Verwendung im veterinärmedizinischen Bereich, insbesondere aus ökologischen Gesichtspunkten unerwünscht.As materials for the injection tube come in principle different plastics into consideration. From the point of view the required bending stiffness of the pipe and the economy in its manufacture, pipes made of polypropylene proved to be particularly advantageous. A disadvantage of this Material is, however, that so far a satisfactory Adhesion between polyurethane and polypropylene not reached was when the guide plug directly out at the injection tube Polypropylene was foamed. Rather, it was with this material pairing previously required, the guide plug separately and then using a suitable adhesive to stick to the injection tube. This procedure is very labor intensive and costly. Also tubes from others Plastics such as polyethylene do not offer the required adhesion of a directly foamed polyurethane plug, especially not if moisture to the Junction of the two parts passes. Alone when using a tube made of polyvinyl chloride could be a satisfactory Adhesion of the directly foamed polyurethane plug be assured, however, PVC is as a material for use in the veterinary field, in particular environmentally undesirable.
Aufgabe der Erfindung ist es, einen Besamungskatheter der eingangs genannten Art zu schaffen, bei eine sichere Verbindung zwischen Injektionsrohr und Führungspfropfen ohne zusätzliche Klebstoffe oder dergleichen sichergestellt ist. The object of the invention is an insemination catheter of the above mentioned type to create a secure connection between injection tube and guide plug without additional Adhesives or the like is ensured.
Diese Aufgabe wird mit der Erfindung dadurch gelöst, daß das Injektionsrohr im Verbindungsbereich zu dem Führungspfropfen mechanisch angerauht ist und daß der Führungspfropfen aus Polyurethanschaum besteht und direkt an das Injektionsrohr an dessen mechanisch aufgerauhter Oberfläche angeschäumt ist. Das Injektionsrohr kann dabei vorteilhaft aus Polypropylen, aus Polyethylen oder Mischungen aus den beiden Materialien oder auch aus einem Coextrudat eines inneren Polypropylenrohres und einer äußeren Polymerbeschichtung bestehen.This object is achieved with the invention in that the injection tube mechanically in the region of connection to the guide plug roughened and that the Führungspfropfen of polyurethane foam exists and directly to the injection tube at the mechanically roughened surface is foamed. The injection tube can be advantageous from polypropylene, polyethylene or mixtures of the two materials or else from a coextrudate of an inner polypropylene tube and a outer polymer coating consist.
Es hat sich gezeigt, daß durch ein mechanisches Anrauhen der Oberfläche des Injektionsrohres im Verbindundungsbereich zu dem später angeschäumten Pfropfen zwischen den beiden Teilen des Katheters eine ganz ausgezeichnete Haftung erreicht wird, wie sie bislang nur erzielt werden konnte, wenn der Pfropfen separat hergestellt und anschließend mittels eines geeigneten Klebers am Injektionsrohr angeklebt wird. Offenbar ermöglicht es die mechanisch aufgerauhte Oberfläche des Injektionsrohres dem Polyurethanschaum, in die durch das Anrauhen entstandenen Vertiefungen u.dgl. einzudringen und sich so praktisch formschlüssig mit dem Rohr zu verbinden. Durch die mechanische Vorbehandlung wird die Rauhtiefe der Rohroberfläche im Verbindungsbereich bewußt vergrößert und somit die gewünschte, ausgezeichnete Haftung erreicht, die auch dann noch gegeben ist, wenn Feuchtigkeit an die Verbindungsstelle beide Katheterteile gelangt, was bei den bisherigen Versuchen mit direkt angeschäumten Führungspfropfen regelmäßig zu Haftungsproblemen führte.It has been shown that by a mechanical roughening of Surface of the injection tube in the Verbindundungsbereich to the later foamed plug between the two parts of the catheter a very excellent adhesion is achieved, as they are so far could only be achieved if the plug separately prepared and then by means of a suitable adhesive on Adhesive tube is glued. Apparently it allows the mechanical roughened surface of the injection tube the polyurethane foam, in the resulting by the roughening depressions etc.. penetrate and so practically form-fitting with to connect to the pipe. Due to the mechanical pretreatment is the roughness of the pipe surface in the connecting area conscious increases and thus achieves the desired, excellent adhesion, which is still given, if moisture to the Connection point passes both catheter parts, which in the previous Try with directly foamed Führungspfropfen regularly led to liability problems.
Die Rauhtiefe oder Riefentiefe beträgt nach dem mechanischen Anrauhen der Oberfläche des Injektionsrohres vorzugsweise zwischen 0,01 und 0,1 mm. Vorzugsweise ist das Injektionsrohr im Verbindungsbereich durch Schleifen angerauht, was beispielsweise mit einem Schleifstein, einer Schleifscheibe oder dergleichen geschehen kann. Es ist auch möglich, die mechanisch angerauhte Oberfläche durch mindestens eine Eindrehung oder Nute im Verbindungsbereich des Injektionsrohres herzustellen bzw. eine solche Eindrehung oder Nute zusätzlich zum Anrauhen durch Schleifen der Rohroberfläche vorzusehen. Die Eindrehung oder Nute erzeugt gleichfalls eine Vertiefung, in die der Polyurethanschaum hineinschäumen kann, um so eine formschlüssige Verbindung zwischen sich und dem Injektionsrohr zu schaffen.The roughness depth or groove depth is after mechanical roughening the surface of the injection tube preferably between 0.01 and 0.1 mm. Preferably, the injection tube is in the connection area roughened by grinding what with for example a grindstone, a grinding wheel or the like happen can. It is also possible to mechanically roughen Surface by at least one recess or groove in the connection area manufacture of the injection tube or such Grooving or groove in addition to roughening by grinding the Provide pipe surface. The recess or groove produced also a depression into which the polyurethane foam lather can be so a positive connection between to create himself and the injection tube.
Um die Haftung zwischen dem Weichschaumpropfen und dem Injektionsrohr noch weiter zu verbessern, ist es vorteilhaft, wenn das Injektionsrohr zusätzlich zu dem mechanischen Anrauhen seiner Oberfläche einer chemischen Vorbehandlung unterworfen ist, was beispielsweise durch eine Coronabehandlung, durch Beflämmung, durch Ätzen oder durch Fluorierung des vorderen Rohrendes geschehen kann. Diese chemische Vorbehandlung erfolgt vorzugsweise nach dem mechanischen Anrauhen der Oberfläche.To the adhesion between the soft foam plug and the injection tube To further improve, it is beneficial if that Injection tube in addition to the mechanical roughening of his Surface of a chemical pretreatment is subjected to what for example, by corona treatment, by flaming, by etching or fluorination of the front pipe end can happen. This chemical pretreatment is preferably carried out after mechanical roughening of the surface.
Zur Herstellung eines solchen Besamungskatheters hat sich ein Verfahren als besonders vorteilhaft erwiesen, bei dem ein langgestrecktes, biegeelastisches Injektionsrohr vorzugsweise aus Polypropylen, Polyethylen oder Mischungen hiervon oder auch aus einem Coextrudat von Polypropylen und einem Polymer an seinem einen, einen Verbindungsbereich bildenden Ende zuerst mechanisch aufgerauht wird und anschließend mit seinem mechanisch angerauhten Verbindungsbereich in eine Form eingeführt wird, woraufhin eine sich verfestigende Polyurethanmasse in die Form injiziert wird, um so einen direkt an das Injektionsrohr angeschäumten Führungspfropfen auszubilden. Wie bereits erwähnt, kann das Injektionsrohr dabei vor dem Einführen in die Form an seinem Endbereich chemisch vorbehandelt werden, was zweckmäßig durch eine Coronabehandlung geschieht, wodurch die mechanisch bereits angerauhte Oberfläche oxidiert und so eine noch größere Haftfestigkeit erzeugt wird. Alternativ ist es natürlich auch möglich, die Behandlung der Oberfläche des Rohres durch Beflämmung zu erreichen oder das Rohr zu fluorieren oder anzuätzen. Die mechanische Vorbehandlung des Injektionsrohres im Verbindungsbereich kann durch Schleifen, beispielsweise mit einer Schleifscheibe oder einem Schleifstein geschehen; alternativ oder zusätzlich kann das Rohr in seinem Verbindungsbereich auch eine Eindrehung oder Nut erhalten, die mittels eines geeigneten Drehwerkzeuges hergestellt werden kann.For the production of such insemination catheter has a Method proved particularly advantageous, in which an elongated, bending elastic injection tube preferably made Polypropylene, polyethylene or mixtures thereof or even from a coextrudate of polypropylene and a polymer on his one, a connecting portion forming end first mechanically is roughened and then with his mechanical roughened connection area is introduced into a mold, whereupon a solidifying polyurethane mass in the mold is injected so as to a foamed directly to the injection tube Form guide plug. As already mentioned, can the injection tube before insertion into the mold be chemically pretreated his end, which is appropriate done by a corona treatment, causing the mechanical already roughened surface oxidizes and so an even larger Adhesive strength is generated. Alternatively, of course it is possible, the treatment of the surface of the pipe by flaming reach or fluorinate or etch the tube. The mechanical pretreatment of the injection tube in the connection area can by grinding, for example with a Grinding wheel or a grindstone happen; alternative or additionally, the tube may also be in its connection area a recess or groove obtained by means of a suitable Turning tool can be produced.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der
nachfolgenden Beschreibung und der Zeichnung, worin eine bevorzugte
Ausführungsform der Erfindung an einem Beispiel näher erläutert
wird. Es zeigt:
In der Zeichnung bezeichnet 10 einen Besamungskatheter für
Schweine, der im wesentlichen aus einem langgestreckten, biegeelastischen
Injektionsrohr 11 besteht, das an seinem vorderen,
in den Uterus der Sau einführbaren Ende 12 mit einem weichelastischen
Führungspfropfen 13 versehen ist.In the drawing, 10 indicates an insemination catheter for
Pigs, which consist essentially of an elongated, flexurally
Das Injektionsrohr 11 besteht dabei aus einem Polypropylenrohr
14, das im Verbindungsbereich 15 zu dem Führungspfropfen 13 eine
mechanisch angerauhte Oberfläche 16 aufweist.The
Der Führungspfropfen 13 besteht aus einem Polyurethan-Weichschaum,
der direkt am vorderen Ende 12 im Verbindungsbereich 15
am Injektionsrohr 11 angeschäumt ist. Dabei stellt die mechanisch
angerauhte Oberfläche 16 eine hervorragende Haftung des
Polyurethan-Pfropfens am Injektionsrohr sicher.The
Die mittlere Rauhtiefe oder Riefentiefe s der angerauhten Oberfläche
16 beträgt bei dem Ausführungsbeispiel ca. 0,25 mm, während
die Gesamtwanddicke d des Polypropylenrohres 14 bei etwa 1
mm liegt. Für das Anrauhen der Oberfläche 16 wird das Injektionsrohr
11 mit einem Schleifstein oder einer Schleifscheibe geeigneter
Körnung angeschliffen. Zusätzlich oder alternativ zur
Behandlung mit der Schleifscheibe oder dem Schleifstein kann das
Injektionsrohr im Verbindungsbereich auch mit einer (nicht
dargestellten) Nute oder Eindrehung versehen werden, die sich
beispielsweise spiralförmig über die Länge des Verbindungsbereiches
um das Rohr windet und genau wie die mechanisch angerauhte
Oberfläche Vertiefungen bildet, in die der Polyurethanschaum
des Pfropfens hineinschäumen kann und so eine Art formschlüssiger
Verbindung zwischen sich und dem Injektionsrohr
schafft, so daß der Pfropfen sich auch dann nicht ablösen kannn,
wenn er Feuchtigkeit aufnimmt, die bis in den Verbindungsbereich
gelangt.The average roughness depth or groove depth s of the roughened
Die Erfindung ist nicht auf das dargestellte und beschriebene
Ausführungsbeispiel beschränkt.
So ist es beispielsweise möglich, anstelle des Polypropylenrohrs
ein Rohr aus Polyethylen, eines aus einer Polyethylen-Polypropylen-Mischung
oder ein solches aus einem Coextrudat aus Polypropylen
und Polyethylen oder deren Mischungen zu verwenden. Der
Führungspfropfen kann auch eine andere als die dargestellte Form
erhalten. Die Oberfläche 16 am Endbereich des Rohres kann neben
der mechanischen Vorbehandlung auch eine zusätzliche, chemische
Behandlung erfahren, was durch eine Coronabehandlung, durch Beffämmung
oder Fluorierung des Rohres geschehen kann.The invention is not limited to the illustrated and described
Embodiment limited.
So it is possible, for example, instead of the polypropylene tube
a polyethylene tube, one of a polyethylene-polypropylene blend
or one made from a polypropylene coextrudate
and polyethylene or mixtures thereof. Of the
Guiding plug can also be a different shape than the one shown
receive. The
Claims (16)
- Insemination catheter for animals, especially pigs, with an elongated, flexible injection tube that is fitted with a soft elastic guide stopper at its front end which is inserted into the animal's uterus, characterised in that the injection tube (11) is mechanically roughened in the connection area (15) toward the guide stopper (13) and that the guide stopper (13) is made of polyurethane foam and foamed directly onto the mechanically roughened surface (16) of the injection tube in the connection area (15).
- Insemination catheter as in claim 1 characterised in that the injection tube (11) is made of polypropylene.
- Insemination catheter as in claim 1 characterised in that the injection tube (11) is made of polyethylene.
- Insemination catheter as in claim 1 characterised in that the injection tube (11) is made of a mixture of polyethylene and polypropylene.
- Insemination catheter as in claim 1 characterised in that the injection tube (11) is made of a co-extrudate of polypropylene and polyethylene and their mixtures.
- Insemination catheter as in claims 1 to 5 characterised in that the injection tube (11) is roughened by grinding in the area of the connection (15).
- Insemination catheter as in claims 1 to 6 characterised in that the injection tube (11) has at least one recess or groove in the area of the connection (15).
- Insemination catheter as in one of the claims 1 to 7 characterised in that the injection tube (11) is subjected to a corona treatment and/or flamed additionally to the mechanical roughening of its surface (16) in the area of the connection.
- Insemination catheter as in the claims 1 to 8 characterised in that the depth of roughness (s) of the mechanically roughened surface (16) is between 0.05 and 0.5 mm.
- Insemination catheter as in one of the claims 1 to 9 characterised in that the average depth of roughness (s) of the mechanically roughened surface (16) is between 0.2 and 0.3 mm.
- Method for manufacturing an insemination catheter for animals, especially according to one of the claims 1 to 10 characterised by the following steps:mechanical roughening of an elongated, flexible injection tube (11) in the area of the connection (15) at the end (12) which forms the connection;insertion of the injection tube (11) with its mechanically roughened connecting area (15) in a mould, and injection of a foaming and solidifying polyurethane compound in the mould to form a guide stopper (13) foamed directly onto the injection tube (11).
- Method as in claim 10 characterised in that the injection tube (11) is chemically pre-treated after mechanical roughening and before insertion in the mould.
- Method as in claim 12 characterised in that the pre-treatment consists of corona treatment or flaming of the injection tube (11) in the area of the connection.
- Method as in one of the claims 11 to 13 characterised in that the injection tube (11) is roughened by grinding around the circumference in the area of the connection (15) before inserting in the mould.
- Method as in one of the claims 11 to 14 characterised in that the mechanical roughening is done using a grindstone, sanding disc or similar.
- Method as in one of the claims 11 to 15 characterised in that the injection tube (11) has at least one recess or groove at the end (12) forming the connecting area (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19901218 | 1999-01-14 | ||
| DE19901218A DE19901218A1 (en) | 1999-01-14 | 1999-01-14 | Insemination catheter for animals and process for its manufacture |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1020164A2 EP1020164A2 (en) | 2000-07-19 |
| EP1020164A3 EP1020164A3 (en) | 2001-02-28 |
| EP1020164B1 true EP1020164B1 (en) | 2005-02-09 |
Family
ID=7894255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99124968A Expired - Lifetime EP1020164B1 (en) | 1999-01-14 | 1999-12-15 | Insemination catheter for animals and method of making the same |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1020164B1 (en) |
| AT (1) | ATE288714T1 (en) |
| DE (2) | DE19901218A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070173736A1 (en) * | 2005-10-07 | 2007-07-26 | Femspec Llc | Apparatus and methods for endometrial biopsies |
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|---|---|---|---|---|
| US2106635A (en) * | 1936-08-14 | 1938-01-25 | Perry J Harder | Veterinarian's instrument |
| DE1255290B (en) * | 1962-12-07 | 1967-11-30 | Steinzeug Und Kunststoffwarenf | Method for producing a socket on a spigot end of a plastic pipe |
| US5674178A (en) * | 1996-06-12 | 1997-10-07 | Root; Robert W. | Artificial insemination tool |
| US5799658A (en) * | 1996-08-15 | 1998-09-01 | Cabot Safety Intermediate Corporation | Hearing protective device comprising a foam and a porous component and method of manufacture thereof |
-
1999
- 1999-01-14 DE DE19901218A patent/DE19901218A1/en not_active Withdrawn
- 1999-12-15 EP EP99124968A patent/EP1020164B1/en not_active Expired - Lifetime
- 1999-12-15 AT AT99124968T patent/ATE288714T1/en not_active IP Right Cessation
- 1999-12-15 DE DE59911599T patent/DE59911599D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1020164A3 (en) | 2001-02-28 |
| DE59911599D1 (en) | 2005-03-17 |
| EP1020164A2 (en) | 2000-07-19 |
| ATE288714T1 (en) | 2005-02-15 |
| DE19901218A1 (en) | 2000-07-20 |
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