Injection device

An injection device including a housing for containing a syringe (4), a resilient member for biasing the syringe and the needle inwardly off the housing, a first coupling element moveable so as to move the needle of the syringe out of the opening and to move the dispensing piston of the syringe towa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	HARRISON NIGEL D.,BRADY MATTHEW J.,BERMAN GREGORY,JOHNSTON DAVID M.,HABESHAW ROSEMARY L
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:	An injection device including a housing for containing a syringe (4), a resilient member for biasing the syringe and the needle inwardly off the housing, a first coupling element moveable so as to move the needle of the syringe out of the opening and to move the dispensing piston of the syringe towards the end surface, a mechanism operable to release the syringe, a drive coupling so as to transfer movement of said first coupling element to the dispensing piston wherein the mechanism is triggered to release the syringe and includes components to delay release of the syringe until a predetermined period after being triggered and/or the mechanism includes an inertial mass moveable with the first coupling element and drive coupling and a release member actuable by the inertial mass to release the syringe such that when the dispensing piston releases the end surface of the syringe and the first coupling element and drive coupling stop moving, the inertial mass continues to move so as to actuate the release member to release the syringe.