Patent ID: 8142390

Claim:
A syringe device ( 1 ) comprising: an oblong plunger space ( 2 ), having a receiving chamber ( 3 ) for receiving one or more solid medicaments ( 4 ); a hollow needle ( 5 ) arranged at the plunger space ( 2 ); a plunger ( 7 ) suitable for movement in the plunger space ( 2 ), the plunger ( 7 ) including a ram ( 8 ) for pushing out the solid medicament ( 4 ) through and out of the hollow needle ( 5 ), and the plunger included a lock ( 14 ) which couples the plunger ( 7 ) to the plunger space ( 2 ); a plunger rod ( 9 ) coupled to the plunger ( 7 ); wherein the plunger rod ( 9 ) is at least one of telescopically extendable or retractable in reference to the plunger space ( 2 ) and to the plunger ( 7 ); wherein parts of the plunger ( 7 ) and the plunger rod ( 9 ) are telescopically adjustable in reference to each other and include one or more mutual locks at intermediate positions of the plunger rod ( 9 ) that are retractable in reference to the plunger ( 7 ), wherein the one or more mutual locks prevent displacement of the plunger ( 7 ) towards the hollow needle ( 5 ) when the plunger rod ( 9 ) is only partially retracted; wherein the lock ( 14 ) is releasable by the plunger rod ( 9 ) being completely retracted to an operational position; wherein, when the lock ( 14 ) is released, the one or more mutual locks do not prevent displacement of the plunger ( 7 ) towards the hollow needle ( 5 ) and the plunger ( 7 ) is displaceable in the direction of the hollow needle ( 5 ) to push the solid medicament ( 4 ) through and out of the hollow needle ( 5 ); and wherein the plunger ( 7 ) is arranged inside the plunger rod ( 9 ) which forms a hollow profile or comprises a groove-shaped cross-sectional profile, and receives the plunger ( 7 ) and at least a portion of the ram ( 8 ) prior to attaining the operational position.