A needle device comprising means for needle retraction

摘要

A needle device having a barrel (55), a plunger (59) slidable therein and a retractable needle assembly (9) movable from a projecting position to retracted position on forward movement of the plunger (59) beyond a predetermined portion of the barrel (55). A needle ejection mechanism is provided comprising spring means (15) for urging the needle assembly (9) into its retracted position. <IMAGE>