1. disposable needleless injector with a housing (200) in which or on which - in each case at least in some areas - has at least one mechanical spring energy store (50) at least one - at least partly suitable for filling active ingredient - the cylinder-piston unit (100) at least one driving rod-stop (60) and at least one starting device (80), - wherein the drive rod, the stop (60) is located between the spring energy accumulator (50) and a piston (111) of the cylinder-piston unit (100), - wherein the spring energy storage device comprises at least one pre-tensioned spring element (50) - which is under the elastic action of the spring actuating rod-stopper (60) abuts the housing (200), with the connector, characterized in - that the housing (200 ) consists of thin-walled metal products (201), - that the sheet metal part (201) has at least two arms (220), - that the free ends of the arms (220) has at the angled retaining element (221) or aperture that in each case act as a place for Mr. cylinder zmescheniya (101) of the cylinder-piston unit (100), - that the shoulders (220) are resilient crosspiece which in the middle portion in each case bent z-shaped or s-shaped to form a support portion (231) for driving pestle piston (60) - that is located between individual bearing portion (231) and the driving rod-piston abutment (60), the contact zone forms a pair of wedge mechanism extrudes concrete shoulder (220) outwards, and- that the trigger unit (80) includes, at least one disposed on the metal part (201) with poss1. Безыгольный одноразовый инъектор с корпусом (200), в котором или на котором - в каждом случае по меньшей мере на отдельных участках - размещены по меньшей мере один механический пружинный накопитель энергии (50) по меньшей мере один - как минимум отчасти пригодный к наполнению действующим веществом - цилиндро-поршневой блок (100) по меньшей мере один приводной шток-упор (60) и по меньшей мере одно пусковое устройство (80),- причем приводной шток-упор (60) ра
