Patent attributes
A subcutaneous delivery mechanism for a drug delivery device (1), comprising a needle (10), a needle holder (12) holding the needle (10), and a needle actuation mechanism (20) configured to actuate in translation the needle holder (12) to move the needle (10) from a retracted position to an extended delivery position. The needle actuation mechanism (20) comprises a first lever (30) pivotally mounted on a first support member (33) and a rotary actuator (22) rotatably mounted on a second support member (43). The first lever (30) is configured to engage the rotary actuator (22). The needle actuation mechanism (20) also comprises a second lever (40) pivotally mounted on the second support member (43) or around a circumferential outer rim (24) of the rotary actuator (22). The first and second levers (30, 40) are coupled to each other such that rotation of the first lever (30) causes rotation of the second lever (40). The second lever (40) is coupled to the needle holder (12) in order to move the needle (10) from the retracted position to the extended delivery position upon rotation of the second lever (40).
