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Injection device for dispensing a medicament

  • US 10,449,299 B2
  • Filed: 10/09/2009
  • Issued: 10/22/2019
  • Est. Priority Date: 04/18/2007
  • Status: Active Grant
First Claim
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1. An insertion sleeve for an injection device, the insertion sleeve having a cylindrical main body defined between a terminal distal end and a terminal proximal end, and comprising an outer face that is cylindrical and positioned between the terminal distal end and the terminal proximal end,wherein a distal end portion of the outer face has a raised surface section that entirely protrudes radially outward from a single circumferential portion of the outer face of the cylindrical main body,wherein the raised surface section of the insertion sleeve has a proximal abutting edge and longitudinally and axially extending side edges and is configured to be received in a recess located at a distal end of a housing part such that the insertion sleeve cannot rotate relative to the housing part,wherein the distal end of the housing part has an inner face,wherein the distal end of the housing part and the distal end portion of the outer face are directed away from a needle of the injection device,wherein the raised surface section of the insertion sleeve has at least one transparent area,wherein the outer face of the insertion sleeve has a locking device that is configured to engage a receiving device located on the inner face of the housing part to lock the insertion sleeve to the housing part in a longitudinal axial direction,wherein the distal end of the housing part and the inner face of the housing part are a unitary structure defining an outermost housing of the injection device,wherein the longitudinally and axially extending side edges of the raised surface section are configured in such a way that they form a clearance fit, transition fit or interference fit with inner faces of edges of the recess that extend in the longitudinal axial direction, andwherein the insertion sleeve comprises an inner thread.

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