| 摘要 |
A liquid agent delivery apparatus having a hydraulic actuator system, the hydraulic actuator system including a bi-directional pump having a stroke volume less than approximately 100-200 nanoliters, and an agent delivery system that is adapted to cooperate with the hydraulic actuator system, the hydraulic actuator system and cooperating agent delivery system being adapted to jointly deliver approximately 0.05-0.5 micro-liters of a liquid agent out of a skin-piercing agent delivery member per delivery sequence with inlet and outlet pressures at the agent delivery member in the range of approximately −500 to +500 millibars.
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