DE1704102A1 - Method for gluing needles for injection syringes with attachments that are used to attach to the syringe cylinder - Google Patents

Method for gluing needles for injection syringes with attachments that are used to attach to the syringe cylinder

Info

Publication number
DE1704102A1
DE1704102A1 DE19671704102 DE1704102A DE1704102A1 DE 1704102 A1 DE1704102 A1 DE 1704102A1 DE 19671704102 DE19671704102 DE 19671704102 DE 1704102 A DE1704102 A DE 1704102A DE 1704102 A1 DE1704102 A1 DE 1704102A1
Authority
DE
Germany
Prior art keywords
cannula
syringe
attach
injection syringes
syringe cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19671704102
Other languages
German (de)
Inventor
Dr Monauni Hanno L
H L Dr Monauni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GEORG A HENKE GmbH
Original Assignee
GEORG A HENKE GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GEORG A HENKE GmbH filed Critical GEORG A HENKE GmbH
Publication of DE1704102A1 publication Critical patent/DE1704102A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/343—Connection of needle cannula to needle hub, or directly to syringe nozzle without a needle hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/58—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising fillers only, e.g. particles, powder, beads, flakes, spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7544—Injection needles, syringes

Description

Verfahren zum Verkleben von Kanülen für Injektionsspritzen mit Ansatzen, die zum Aufstecken auf den Spritzenzylinder dienen.Method for gluing needles for injection syringes with attachments, which are used to attach to the syringe barrel.

Die vorliegende Erfindung betrifft ein Verfahren, um Kanülen ftlr Injektionsspritzen mit einem Ansatz aus Kunststoff zu verbinden, mittels dessen die nadel auf die Injektionsspritze aufgesetzt werden soll.The present invention relates to a method for cannulas ftlr To connect injection syringes with a plastic approach, by means of which the needle is to be placed on the injection syringe.

Gemäß dem Vorschlag dieser Erfindung wird die Kanüle am spritzenseitigen Ende in den aus thermoplastischen hunstharz vorgeformten Ansatz eingesteckt und dann durch direkten Stromdurchgang erhitzt, wobei die KanAle selbst als Heizwiderstand wirkt. Durch den Wärmekontakt wird dann auch das thermoplastische Material des Ansatzkörpers über seinen Erweichungspunkt erhitzt und geht dann in diesem Zustand eine innige Klebeverbindung mit der Oberflache der Kanüle ein, die auch nach dem Erkalten aufrechterhalten bleibt.According to the proposal of this invention, the cannula is on the syringe side The end is inserted into the preformed thermoplastic resin neck and then heated by direct passage of current, the channels themselves acting as a heating resistor works. The thermal contact then also forms the thermoplastic material of the attachment body heated above its softening point and then goes into this state an intimate Adhesive connection with the surface of the cannula, which is maintained even after cooling remain.

Bei bekannten Ausführungsformen solcher Injektionskanülen besteht der Ansatz aus Kunststoff und besitzt eine durchgehende Längsbohrung, die vorne zur Aufnahme des Nadelendes dient und die sich wenigstans zum anderen Ende hin konisch erweitert, um damit den Ansatz auf das kegelige Anspritzende der Injektionsspritze dicht aufstecken zu können. Derartige Injektionsspritzen herzustellen bereltet ainige Schwierigkeiten. Wenn nämlich die Nadel in eine Spritzform gelagert wird um an eines ihrer Enden den Ansatz aus härterem Kunststoff anzuspritzen, wobei zur @@@@@@@@@ @ines grö#eren A@@@t@#en mel@t Hehrf@@@@@@men Ze@@@@@@@@@@@@@@n, lot @ @@@@t leight, die Nadel@ @@@@ and @@@@@@@@@@@@@, Unter der Wirkung des Spritzdruckes kann sie vielmehr axial verschoben werden. Wegen der Toleranzen im Außendurchmesser ist sie auch nicht leicht gegenüber der Form abzudichten. Vielmehr tritt oft die Spritzmasse an der Außenseite der Kanüle aus oder sie tritt in das zu umspritzende Ende der Kanüle ein und verstopft es.In known embodiments of such injection cannulas there is the approach made of plastic and has a continuous longitudinal hole, the front serves to accommodate the needle end and which is at least conical towards the other end expanded in order to allow the approach to the conical injection end of the injection syringe to be able to attach tightly. It is advisable to manufacture such injection syringes Trouble. Namely, when the needle is stored in an injection mold in order to be attached to one To inject the attachment made of harder plastic onto its ends, using the @@@@@@@@@ @ines larger A @@@ t @ # en mel @ t Hehrf @@@@@@ men Ze @@@@@@@@@@@@@@ n, lot @ @@@@ t leight, the needle @ @@@@ and @@@@@@@@@@@@@, Under the effect of the spray pressure rather, it can be moved axially. Because of the tolerances in the outer diameter it is also not easy to seal against the shape. Rather, the often occurs Injection compound on the outside of the cannula or it enters the to be encapsulated End of the cannula and plug it.

Eine andere gebräuchliche Art der Verbindung zwischen Kanüle und Ansatz durch Verkleben ist umständlich und kaum genügend gleichmäßig und zuverlässig auszuführen.Another common type of connection between cannula and hub gluing is cumbersome and can hardly be carried out evenly and reliably enough.

Wenn die Nadel nämlich dann ohne Spiel in die Bohrung des Ansatzes passen soll, damit sie nicht eine schiefe Lage einnimmt, wird beim Einstechen in die Bohrung des Ansatzes der aufgebrachte Kleber leicht weggeschoben. Es ist auch nicht einfach, die in einem Ansatz eingesteckte Nadel nachträglich mit dem Kleber zuverlässig zu umgießen. Dieses Verfahren erlaubt Jedenfalls keine Massenfertigung.If the needle is then in the hole of the neck without play should fit so that it does not assume an oblique position, is inserted when piercing the hole in the neck of the applied adhesive is slightly pushed away. It is also not easy, the needle inserted in one approach with the glue afterwards to be poured around reliably. In any case, this method does not allow mass production.

Die somit sich stellende Aufgabe, eine dauerhafte einfache Verbindungsart zwischen einer Kanüle für Injektionsspritzen und ihrem Ansatzkörper aus Kunstharz zu schaffen, wird erfindungsgemäß durch ein Verfahren gelöst, welches darin besteht, daß zunächst die Kanüle in den aus thermoplastischen Kunstharzmaterial vorgeformten Ansatzkörper eingesteckt wird, bis der gewijischte Sitz erhalten wird, wonach die Kanüle durch direkten elektrischen Stromdurchgang so lange erhitzt wird, bis durch den erreichten Wärmekontakt zwischen der Kanüle und dem thermoplastischem Material dieses an der zylindrischen Berührungsfläche zwischen beiden Körpern erweicht und dadurch eine innige, auch nach dem erkalten nufrechterhaltene Klebeverbindung zwischen den beiden Oberflächen eingegangen wird.The task that then arises, a permanent, simple type of connection between a cannula for injection syringes and its attachment body made of synthetic resin to create is achieved according to the invention by a method which consists in that first the cannula is preformed in the thermoplastic synthetic resin material Approach body is inserted until the Gewijischte seat is obtained, after which the Cannula is heated by direct electrical current passage until through the thermal contact achieved between the cannula and the thermoplastic material this softens on the cylindrical contact surface between the two bodies and this creates an intimate adhesive bond between the the two surfaces is entered.

Dieses Verfahren weist die oben @enannten @@@ehteile nicht aus.This procedure does not identify the above @@@ parts.

Es hat vielmehr den Vorteil, daß die Kanüle und der insatzkörper in der vorgeschriebenen Porm vorgefertigt werden können, wobei also der Ansatzkörper bereits die durchgehende Bohrung zur Aufnahme des spritzenseitigen Endes der Kanüle erhält, daß weiterhin diese beiden Körper bereits bis zu ihrer endgültigen Verbindungsform zusammengesteckt werden können und die volle dauerhafte Verklebung dann durch einfachen elektrischen Stromdurchgang bewerkstelligt wird.Rather, it has the advantage that the cannula and the insert body are in the prescribed Porm can be prefabricated, so the attachment body already the through hole for receiving the syringe-side end of the cannula receives that these two bodies continue until their final form of connection can be plugged together and the full permanent gluing then by simple electrical current passage is accomplished.

Zur Erläuterung des Erfindungsgedankens sei eine Figur herangezogen, die im Querschnitt die zunächst in den Ansatzkörpern 2 einfach eingesteckte Kanüle 1 und schematisch die Erwärmungsvorrichtung zeigt. Diese besteht z.B. aus einem Wechselstromgenerator 11, der zur Speisung eines im angeschlossenen Stromkreis 9 liegenden Transformators 8, mit Primärwicklung 8a und Sekundärwicklung 8b dient, durch den die Heizspannung auf eine geeignete Größe gebracht wird.A figure is used to explain the concept of the invention, the cannula initially simply inserted into the attachment bodies 2 in cross section 1 and shows schematically the heating device. This consists e.g. of a AC generator 11, which is used to feed a connected circuit 9 lying transformer 8, with primary winding 8a and secondary winding 8b, by which the heating voltage is brought to a suitable size.

Der Heizstromkreis 7 ist an die Sekundärwicklung 8b dieses Transformators und mittels der Kontakte 5 und 6 an das spritzenseitige, in die konische Einbuchtung 12 des Ansatzkörpers 2 ragende Ende der Kanüle 1 und an den aus dem Ansatzkörper 2 herausragenden Teil der Kanüle angeschlossen, so daß der Ansatzkörer 2 den stromdurchflossenen Teil der Kanüle längs der zylindrischen Zone 3 berührt. Als Zwischenglied zwischen dem Kontakt 5 und dem spritzenseitigen Ende der Eansile 1 kann ein in die konische Einbuchtung 12 steckbarer und mit einer Spitze in das Kanülenende einsetzbaren Dorn 4 dienen. Das durch Kontaift 6 und Dorn 4 begrenzte Kanülenstäck bildet somit einen Teil des Heizstromkreises.The heating circuit 7 is connected to the secondary winding 8b of this transformer and by means of contacts 5 and 6 to the syringe-side into the conical indentation 12 of the attachment body 2 protruding end of the cannula 1 and from the attachment body 2 protruding part of the cannula connected, so that the attachment body 2 is the current-carrying Touches part of the cannula along the cylindrical zone 3. As a link between the contact 5 and the syringe-side end of the Eansile 1 can be in the conical Indentation 12 plug-in mandrel that can be inserted with a tip into the end of the cannula 4 serve. The cannula section delimited by contact 6 and mandrel 4 thus forms one Part of the heating circuit.

Durch geeignete Ausbildung der Kontakte 4, 5, 6 können sehr schnell hintereinander und serienmäßig die einzelnen Verschwei#ungsvorgänge für viele Kanülen vollzogen werden.By suitably designing the contacts 4, 5, 6, you can very quickly one after the other and as standard, the individual welding processes for many cannulas be carried out.

Die erforderliche Bemessung des Heizstromes und der Heizspannung richtet sich nach dem Material der Kanüle 1, seinen elektrischen Widerstand und nach dem Erweichungspunkt des Material des Ansatzkörpers 2. Als solche Materialien eignen sich Thermoplaste die im schmelzflüssigem Zustand in die Oberflächenunebenheiten-Rauhtiefen eindringen, z,B, Polyamide und Polycarbonate.The required dimensioning of the heating current and the heating voltage is directed according to the material of the cannula 1, its electrical resistance and according to the Softening point of the material of the attachment body 2. Suitable materials as such Thermoplastics which in the molten state in the surface unevenness-roughness penetrate, e.g., polyamides and polycarbonates.

Zur Verbesserung der Haftfähigkeit können selbstverständ-7ich die Kanülen oder der Kunstharzkörper mechanisch oder chemisch vorgereinigt, aufgerauht, entfettet oder in einer sonst passenden Weise vorbehandelt sein,To improve the adhesion, I can of course use the Cannulas or the synthetic resin body mechanically or chemically pre-cleaned, roughened, degreased or pretreated in another suitable way,

Claims (2)

Patent-Ansprüche 10 Verfahren zum Verkleben von Kanülen für Injektionsspritzen mit aus thermoplastischen Werkstoffen bestehenden Ansätzen, die zum Aufstecken auf Spritzenzylin der dienen, dadurch gekennzeichnet, daß die Kanüle (1) zunächst mit ihrem spritzenseitigen Ende in den in der endgültigen Form vorgefertigten Ansatzkörper (2) eingesteckt und dann durch direkten elektrischen Stromdurchgang solange erhitzt wird, bis an der Berührungszone (3) der beiden Körper der Erweichungspunkt des thermoplastischen Materials überschritten und dadurch eine innige Klebeverbindung erzielt wird, die auch nach dem Abschalten des Heizstromes und nach dem Erkalten des thermoplastischen Körpers (2) erhalten bleibt.Patent claims 10 method for gluing needles for injection syringes with approaches made of thermoplastic materials that can be attached to Syringe cylinder which serve, characterized in that the cannula (1) initially with their syringe-side end in the prefabricated attachment body in the final form (2) plugged in and then heated by direct electrical current passage until the contact zone (3) of the two bodies is the softening point of the thermoplastic Material exceeded and thereby an intimate adhesive bond is achieved that even after the heating current has been switched off and the thermoplastic has cooled down Body (2) is preserved. 2. Verfahren nach Anspruch 1 dadurch gekennzeichnet, daß die zu verbindenden Teile (1) und (2) einer mechanischen oder chemischen Vorbehandlung unterzogen werden, die zu einer Erhöhung der gegenseitigen Haftung führt.2. The method according to claim 1, characterized in that the to be connected Parts (1) and (2) are subjected to mechanical or chemical pretreatment, which leads to an increase in mutual liability. L e e r s e i t eL e r s e i t e
DE19671704102 1967-07-29 1967-07-29 Method for gluing needles for injection syringes with attachments that are used to attach to the syringe cylinder Pending DE1704102A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0063445 1967-07-29

Publications (1)

Publication Number Publication Date
DE1704102A1 true DE1704102A1 (en) 1971-06-16

Family

ID=7162315

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671704102 Pending DE1704102A1 (en) 1967-07-29 1967-07-29 Method for gluing needles for injection syringes with attachments that are used to attach to the syringe cylinder

Country Status (3)

Country Link
DE (1) DE1704102A1 (en)
NL (1) NL6810511A (en)
SE (1) SE329719B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361661A1 (en) * 1972-12-11 1974-06-12 Sony Corp PROCEDURE FOR FASTENING METAL INSERTS IN A PLASTIC RESIN CARRIER
DE2949553A1 (en) * 1979-12-10 1981-06-11 Sortimat Creuz & Co Gmbh, 7057 Winnenden METHOD AND DEVICE FOR PRODUCING DISPOSABLE CANNUMS UNDER MELTING
DE3045411A1 (en) * 1979-12-10 1982-07-01 Sortimat Creuz & Co Gmbh, 7057 Winnenden Throwaway injection needle with mounting - made by resistance heating to seal metal needle firmly into plastics mounting

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361661A1 (en) * 1972-12-11 1974-06-12 Sony Corp PROCEDURE FOR FASTENING METAL INSERTS IN A PLASTIC RESIN CARRIER
DE2949553A1 (en) * 1979-12-10 1981-06-11 Sortimat Creuz & Co Gmbh, 7057 Winnenden METHOD AND DEVICE FOR PRODUCING DISPOSABLE CANNUMS UNDER MELTING
DE3045411A1 (en) * 1979-12-10 1982-07-01 Sortimat Creuz & Co Gmbh, 7057 Winnenden Throwaway injection needle with mounting - made by resistance heating to seal metal needle firmly into plastics mounting
EP0030353B1 (en) * 1979-12-10 1984-07-11 SORTIMAT Creuz & Co. GmbH Process and apparatus for manufacturing disposable cannulae

Also Published As

Publication number Publication date
NL6810511A (en) 1969-01-31
SE329719B (en) 1970-10-19

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