| 摘要 |
The present invention relates to a method and device for needleless injectio n of a liquid substance in the skin or other target tissue of a patient, in which droplets of the liquid substance are produced, and the droplets of liquid substance are directed toward the surface of the patient's skin or other target tissue at a velocity sufficiently high to inject the droplets o f liquid substance in the patient's skin or other target tissue. According to an illustrative embodiment, the droplets of the liquid substance are accelerate d toward the surface of the patient's skin or other target tissue in order to inject the accelerated droplets of liquid substance in the patient's skin or other target tissue. According to another illustrative embodiment, a high velocity jet of gas is produced, droplets of the liquid substance are produc ed and supplied in the high velocity jet of gas, the droplets of liquid substan ce are conveyed within the high velocity jet of gas, and the high velocity jet of gas is guided toward the surface of the patient's skin or other target tissu e in order to inject the conveyed droplets of liquid substance in the patient' s skin or other target tissue.
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