Needle arrangement

The present invention relates to a needle arrangement for an injection device. The needle arrangement is made up from needle cannula which is mounted such that a distal part having a distal tip extends in a distal direction. Further, a telescopically movable shield carrying a cleaning chamber surrou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Bengtsson, Henrik, Eilertsen, Lars
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:	The present invention relates to a needle arrangement for an injection device. The needle arrangement is made up from needle cannula which is mounted such that a distal part having a distal tip extends in a distal direction. Further, a telescopically movable shield carrying a cleaning chamber surrounds at least the tip of the needle cannula between injections such that the tip of the needle cannula is maintained inside the cleaning chamber between subsequent injections. The cleaning chamber is at least distally provided with a pierceable septum through which the needle cannula penetrates during injections. For guiding the needle cannula during injections a telescopically movable tube is provided. During injections the distal end of the telescopically movable tube at least partly penetrates the distal septum.