Medicament delivery device

A medicament delivery device for expelling medicament from a mechanically flexible medicament container, the medicament delivery device comprising:

• a housing having a proximal housing end, a distal housing end, and a central channel extending through the proximal housing end and towards the distal housing end, the central channel being configured to receive the medicament container,
• wherein the housing has an inner surface provided with a first axial channel and a second axial channel arranged on opposite sides of the central channel, each of the first axial channel and the second axial channel opening into the central channel,
• a drive member having a first leg extending into the first axial channel via the distal end of the first axial channel and a second leg extending into the second axial channel via the distal end of the second axial channel, the drive member being arranged to move linearly towards the proximal housing end,
• a plurality of first segments arranged one after the other in the first axial channel, and
• a plurality of second segments arranged one after the other in the second axial channel,
• wherein the first leg and the second leg are configured to move a respective one of the first segments and the second segments towards the proximal housing end when the drive member is moved linearly towards the proximal housing end, whereby at least one of the first segments and at least one of the second segments are moved radially towards each other into the central channel to thereby subject the medicament container to oppositely directed radial forces.