Described is a needle assembly magazine (1) comprising a body (2), and a plurality of needle assembly compartments (3) formed in the body (2). Each needle assembly compartment (3) includes at least one track (19) adapted to receive a follower pin (25) coupled to a needle assembly (4). The at least one track (19) comprises a substantially horizontal proximal portion (20) coupled to a substantially vertical longitudinal portion (22) coupled to a substantially horizontal distal portion (21). The needle assembly (4) is restricted to rotational movement relative to the needle assembly compartment (3) when the follower pin (25) is in the proximal portion (20) and the distal portion (21) and restricted to axial movement when the follower pin (25) is in the longitudinal portion (22).
