Boot remover

Abstract

The invention relates to a boot remover (10) for removing a protective needle boot (11) from a drug delivery device (1), wherein the boot remover (10) is substantially sleeve shaped with an internal diameter and a length adapted to receive and substantially cover a needle shield (4), wherein the boot remover (10) is arranged to engage the protective needle boot (11) when attached to the drug delivery device (1). Furthermore, the invention relates to a drug delivery device (1) comprising a boot remover (10).

1 . Drug delivery device ( 1 ) for dispensing a dose of a drug, comprising:
 a support body ( 2 ) having a first end defining a first opening and a second end defining a second opening,   a syringe barrel ( 5 ) sealed by a stopper ( 7 ) slidably disposed therein along an axial direction and adapted to have an integrated needle ( 6 ) or to be coupled with a needle assembly comprising a needle ( 6 ), wherein the syringe barrel ( 5 ) is positioned within the support body ( 2 ),   a protective needle boot ( 11 ) arrangeable over the needle ( 6 ) on the syringe barrel ( 5 ),   a needle shield ( 4 ) adapted to be coupled to one of the ends of the support body ( 2 ) and slidably disposed thereon for covering or exposing the needle ( 6 );   an outer body ( 3 ) coupled to the other end of the support body ( 2 ) and slidably disposed thereon and a   boot remover ( 10 ) for removing a protective needle boot ( 11 ) from the syringe barrel ( 5 ), wherein the boot remover ( 10 ) is substantially sleeve shaped with an internal diameter and a length adapted to receive and substantially cover the needle shield ( 4 ), wherein the boot remover ( 10 ) is arranged to engage the protective needle boot ( 11 ) when attached to the drug delivery device ( 1 ).   
     
     
         2 . Drug delivery device ( 1 ) according to  claim 1 , wherein the boot remover ( 10 ) comprises a clamping collar ( 10 . 1 ) arranged to engage a coupling protrusion ( 11 . 3 ) of the protective needle boot ( 11 ), such that the protective needle boot ( 11 ) is axially coupled to the boot remover ( 10 ). 
     
     
         3 . Drug delivery device ( 1 ) according to  claim 2 , wherein the clamping collar ( 10 . 1 ) is arranged to allow rotation of the protective needle boot ( 11 ) relative to the boot remover ( 10 ). 
     
     
         4 . Drug delivery device ( 1 ) according to  claim 3 , wherein the coupling protrusion ( 11 . 3 ) of the protective needle boot ( 11 ) is mushroom-shaped for engaging in a bore within the clamping collar ( 10 . 1 ). 
     
     
         5 . Drug delivery device ( 1 ) according to  claim 1 , arranged to engage the protective needle boot ( 11 ) by friction and/or by at least one barb engageable in a recess or behind a shoulder on the protective needle boot ( 11 ). 
     
     
         6 . Drug delivery device ( 1 ) according to  claim 1 , arranged as a handle integrally shaped with the protective needle boot ( 11 ). 
     
     
         7 . Drug delivery device ( 1 ) according to one of the preceding claims, comprising a direction indicator for indicating a direction for removing the protective needle boot ( 11 ). 
     
     
         8 . Drug delivery device ( 1 ) according to one of the preceding claims, comprising at least one grip feature ( 10 . 2 ). 
     
     
         9 . Drug delivery device ( 1 ) according to one of the  claims 2  to  8 , wherein the clamping collar ( 10 . 1 ) forms a recess with the coupling protrusion ( 11 . 3 ) located in the centre. 
     
     
         10 . Drug delivery device ( 1 ) according to one of the  claims 2  to  4  and  7  to  9 , wherein the coupling protrusion ( 11 . 3 ) is arranged at a distal end of the protective needle boot ( 11 ). 
     
     
         11 . Drug delivery device ( 1 ) according to one of the preceding claims, wherein a plunger rod ( 8 ) is coupled to the stopper ( 7 ), wherein a proximal portion of the plunger rod ( 8 ) is adapted to be coupled to the outer body ( 3 ). 
     
     
         12 . Drug delivery device ( 1 ) according to one of the preceding claims, wherein a detent mechanism is arranged to constrain movement of the outer body ( 3 ) relative to the support body ( 2 ). 
     
     
         13 . Drug delivery device ( 1 ) according to one of the preceding claims, wherein a sleeve ( 12 ) is arrangeable over the support body ( 2 ). 
     
     
         14 . Drug delivery device ( 1 ) according to  claim 13 , wherein the sleeve ( 12 ) is transparent.