一种兽医无针注射器注射参数的测量

与带针头兽医注射器相比,兽医无针注射器具有药液吸收效果好、防止交叉感染、防止针头断裂、提高肉品质量、减少动物保定、提高注射效率等优点。为了给兽医无针注射器的优化设计提供参考,以某兽医无针注射器作为样品,对其注射剂量、喷孔孔径和喷射冲击力进行测量,对测量方法和测量结果进行分析讨论。结果显示,在喷孔直径为0.3037 mm时,兽医无针注射器刺穿动物皮肤所需的喷射压力最小值为28 MPa,可作为兽医无针注射器成功注射刺穿动物皮肤所需喷射压力的门槛值。

Injection parameter measure on a kind of needle-free injector for veterinary use

Comparing with injection syringe for veterinary use, the needle-free injector for veterinary use has such advantages as better soup absorbing effect, preventing cross infection, avoiding needle breakage, enhancing meat quality, reducing fixation of animal and improving injection efficiency. In order to be suggestive to optimization design of needle-free injector for veterinary use, the dosage, orifice diameter and injection force of a kind of needle-free injector for veterinary use were measured, the injection pressure were calculated therefor. The test methods were discussed and the results were analyzed. The minimum required injection pressure 28 MPa corresponding to orifice diameter 0.3037 mm was given. It can be used as the threshold injection pressure to successfully perforate livestock skin by needle-less injector for veterinary use.