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Needleless syringe functioning by shock-tube effect, with prior lateral retention of the active principle
Needleless syringe functioning by shock-tube effect, with prior lateral retention of the active principle
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机译:无针注射器通过震动管作用发挥作用,并事先保留了活性成分
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摘要
The invention concerns a needleless syringe (1) comprising a trigger, a gas generator (2) prolonged by a gas expansion chamber (3), a system for retaining particles and an ejection tube (4). The invention is characterised in that the particles are housed outside the ejection tube conduit (4) and the gases cause the particles to reach inside said tube (4) by displacing a plunger (13), prior to speeding them up by wave shock inside the tube (4).
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