Injection Device with Mounting Aid for a Supplementary Device

Abstract

A mounting aid for attaching a supplementary device to an injection device, wherein the injection device has an elongated housing extending in an axial direction, the mounting aid comprising a body extending in the axial direction, configured to receive at least a portion of the housing and having at least one radially extending engaging member to engage with a correspondingly shaped engaging member of the housing when in a specific position relative to the housing, and wherein the body comprises a side wall with an abutment face facing in a proximal direction, wherein the abutment face is defined on a plane that is inclined to the axial direction.

1 . An injection device comprising:
 a housing extending in a longitudinal direction and comprising at least one housing engaging member to releasably mount a mounting aid in a specific position on an outside surface of the housing, and with at least one engaging structure to releasably mount a supplementary device in a device specific position on the outside surface of the housing, the mounting aid being attached to the housing, the mounting aid being configured to support attaching of the supplementary device to the injection device, the mounting aid comprising:
 a body configured to receive at least a portion of the housing and having at least one radially extending body engaging member to engage with the at least one housing engaging member of the housing when in the specific position on the outside surface of the housing, 
   wherein the body of the mounting aid comprises a side wall with an abutment face facing in a proximal longitudinal direction, wherein the abutment face is defined on a plane that is inclined to the longitudinal direction.   
     
     
         2 . The injection device according to  claim 1 , wherein the housing comprises a distal section and a proximal section and wherein the at least one housing engaging member is located on an outside of a side wall of the distal section and comprises a longitudinal recess to positively engage with the at least one radially extending body engaging member of the mounting aid. 
     
     
         3 . The injection device according to  claim 1 , further comprising a visual label at a specific circumferential section on the outside surface of the housing. 
     
     
         4 . The injection device according to  claim 1 , wherein the abutment face is planar and wherein an imaginary surface normal of the abutment face extends non-parallel to the longitudinal direction. 
     
     
         5 . The injection device according to  claim 1 , wherein the body of the mounting aid comprises a tubular shaped receptacle to enclose at least a distal section of the housing. 
     
     
         6 . The injection device according to  claim 1 , wherein the body of the mounting aid is cup shaped and comprises a closed end section towards a longitudinal distal end. 
     
     
         7 . The injection device according to  claim 1 , wherein the at least one body engaging member protrudes inwardly from the side wall of the body. 
     
     
         8 . The injection device according to  claim 1 , wherein the at least one body engaging member comprises a longitudinal stop to longitudinally abut with a correspondingly shaped longitudinal counter stop of the housing engaging member. 
     
     
         9 . The injection device according to  claim 8 , wherein the body engaging member comprises at least two oppositely directed longitudinal stops to simultaneously engage with correspondingly shaped longitudinal counter stops of the housing engaging member. 
     
     
         10 . The injection device according to  claim 1 , wherein the at least one body engaging member comprises at least one tangential stop to abut in a tangential direction with a correspondingly shaped tangential counter stop of the housing engaging member. 
     
     
         11 . The injection device according to  claim 10 , wherein the at least one tangential stop is formed by at least one tangential side edge of the at least one body engaging member. 
     
     
         12 . The injection device according to  claim 5 , wherein an inner cross section of a proximal end of the receptacle is larger than or equal to a cross section of a proximal section of the housing. 
     
     
         13 . The injection device according to  claim 1 , wherein the body comprises a visual label on an outside surface or wherein the body comprises a distally extending recess at a proximal end of the side wall. 
     
     
         14 . The injection device according to  claim 13 , wherein by at least one of the visual label and the distally extending recess the mounting aid is unambiguously aligned with at least one indicator provided on the outside surface of the housing when the mounting aid is in the specific position on the an outside surface of the housing. 
     
     
         15 . A kit comprising:
 an injection device, the injection device comprising:
 a housing extending in a longitudinal direction and comprising at least one housing engaging member to releasably mount a mounting aid in a specific position on an outside surface of the housing, and further comprising at least one engaging structure to releasably mount a supplementary device in a device specific position on the outside surface of the housing, 
   a mounting aid attachable to the housing, the mounting aid being configured to support attaching of the supplementary device to the injection device, the mounting aid comprising:
 a body configured to receive at least a portion of the housing and having at least one radially extending body engaging member to engage with the at least one housing engaging member of the housing when in the specific position on the outside surface of the housing, the body comprising a side wall with an abutment face facing in a proximal longitudinal direction, wherein the abutment face is defined on a plane that is inclined to the longitudinal direction, 
   a supplementary device comprising a device body and at least one device engaging member to releasably mount the device body in the device specific position on the outside surface of the injection device, wherein the device body comprises a device abutment face to align and to abut with the abutment face of the mounting aid when the mounting aid is attached to the injection device in the specific position.   
     
     
         16 . The kit according to  claim 15 , wherein the device abutment face is defined on a plane that is inclined to the longitudinal direction. 
     
     
         17 . The kit according to  claim 15 , wherein the device abutment face is in abutment with the abutment face of the mounting aid when the device engaging member is engaged with the at least one engaging structure of the housing. 
     
     
         18 . The kit according to  claim 15 , wherein the device abutment face is in abutment with the abutment face of the mounting aid when the supplementary device is in the device specific position on the outside surface of the housing. 
     
     
         19 . A method of attaching a supplementary device to an injection device, the injection device comprising a housing extending in a longitudinal direction, the housing comprising at least one housing engaging member for releasably mounting a mounting aid in a specific position on an outside surface of the housing and comprising at least one engaging structure to releasably mount the supplementary device in a device specific position on the outside surface of the housing, the method comprising the steps of:
 providing the mounting aid, the mounting aid comprising a body configured to receive at least a portion of the housing and having at least one radially extending body engaging member, the body further comprising a sidewall with an abutment face facing in a proximal longitudinal direction, wherein the abutment face is defined on a plane that is inclined to the longitudinal direction,   mounting the mounting aid in the specific position on the outside surface of the housing, and   providing of the supplementary device comprising a device body and at least one device engaging member, wherein the device body comprises a device abutment face,   mounting the supplementary device in the device specific position on the outside surface of the housing and bringing the device abutment face in alignment and in abutment with the abutment face of the mounting aid.   
     
     
         20 . The method according to  claim 19 , further comprising the step of engaging the device engaging member with the engaging structure of the housing by bringing the device abutment face in alignment and in abutment with the abutment face of the mounting aid.