Autoinjector

A medicament delivery device, comprising;

• a housing having a proximal end and a distal end;
• and
• a movable container assembly disposed in the housing and including a medicament container having an interior containing a medicament, wherein the medicament container comprises a stopper and a first seal sealing the interior;
• wherein the medicament delivery device further comprises
• a needle assembly connected to the movable container assembly and having a needle and an outer cap, wherein the outer cap is configured to be manually manipulated to move the needle toward the medicament container in order for a distal end of the needle to pierce the first seal and enter the interior;
• a driver assembly disposed at a distal end of the medicament container and configured to be released and move the container assembly and the needle assembly toward the proximal end of the housing to an insertion position where a proximal end of the needle exits the housing.

A medicament delivery device, comprising;

• a housing having a proximal end and a distal end;
• a movable container assembly disposed in the housing and having a proximal end;
• a medicament container positioned within the movable container assembly and having an interior containing a medicament, wherein the medicament container comprises a stopper and a first seal sealing the interior;
• a needle assembly comprising a retainer, a needle and an outer cap, where the retainer is directly connected to the proximal end of the movable container and where rotation of the outer cap causes the needle to pierce the first seal;
• and
• a driver assembly operatively associated with the medicament container, where the driver assembly comprises a hollow plunger rod containing a compressed spring that when decompressed causes the plunger rod to move proximally relative to the housing and within the medicament container further causing proximal movement of both the medicament container and the movable container assembly to an insertion position where a proximal end of the needle exits the housing.