Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
May 13, 2014
Patent Application Number
12993955
Date Filed
May 20, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An autoinjector is provided with a magnetically operated “injection complete” indicator. A moveable magnet (44) associated with the drive piston (38) is kept at one end of a recess by a soft iron keeper (46) until the drive piston reaches its formal position where the moveable magnet (44) is attracted to impact a magnet (48) on the housing to generate an audible click. Also described is a spring finger (52) that slips behind the rear edge of the syringe boot (50) temporarily to hold the end of the boot well clear of the housing to that it can be gripped for removal.
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