| 摘要 |
FIELD: medical engineering. ^ SUBSTANCE: multi-jet device is based on reverse piezoelectric effect and laws governing liquid flow from thin openings. Device has piezoelectric cell as plate manufactured from monolith piezoelectric material having a lot of through openings, electrodes deposited over the material and means for preventing medicament from following off through nozzle under condition of lacking electric voltage. Internal surface of the openings is formed by piezoelectric material. One of piezoelectric cell electrodes is deposited over the surface. Another embodiment of the device has both electrodes deposited over the external lateral surfaces of piezoelectric material plate. ^ EFFECT: simplified design; enhanced effectiveness in protecting patients against infection. ^ 15 cl, 4 dwg, 1 tbl |
