System Design of a Needle-free Injector for Animal Vaccination

China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (10): 1231-1234.

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System Design of a Needle-free Injector for Animal Vaccination

Chen Kai1;Zhou Hua2

1.Hangzhou Dianzi University,Hangzhou,310018

2.Changzhou Zhong'an Medical Devices Co.,LTD,Changzhou,Jiangsu,213104

Online:2010-05-25 Published:2010-06-02
Supported by:

National Natural Science Foundation of China（No. 50775059）;
The National Key Technology R&D Program（No. 2007BAI07A06）

用于动物疫苗注射的无针注射系统的设计

陈凯1;周华2

1.杭州电子科技大学,杭州,310018

2.常州中安医疗器械有限公司,常州,213104

基金资助:
国家自然科学基金资助项目(50775059)；“十一五”国家科技支撑计划资助重大项目(2007BAI07A06)
National Natural Science Foundation of China（No. 50775059）;
The National Key Technology R&D Program（No. 2007BAI07A06）

Abstract

Abstract:

A spring-powered jet injector was designed for animal vaccine injection.It has the feature of continuous drug delivery and injection.Several parameters are critical to the injection quality,such as nozzle diameter,volume of drug delivered,ampoule diameter,and jetting force.As two important factors to evaluate the injection quality,the injection pressure determines whether the jet can erode and penetrate

into the skin,and the jet power effectively describes the injection completeness.A physical model was presented to predict the injection pressure and jet power with given system parameters.The model was validated by experimental results.Finally,an example was given to determine the system variables through calculation.

Key words: needle-free injection, jet, stagnation pressure, vaccine

摘要：

设计了一种以弹簧为动力、可以连续吸药及注射的无针注射系统,影响无针注射质量的主要系统参数有喷孔直径、药物注射剂量、活塞（安瓿）直径、推射力等。喷射穿刺能力与注射完全度是对动物疫苗进行无针注射质量评价的重要指标,与喷射最大压力和喷射功率相关。给出了在给定系统参数情况下预测喷射压力与喷射功率的物理模型,并用实验验证了模型的正确性。最后通过计算给出了确定系统参数的一个实例。

关键词:

无针注射, 喷射, 滞止压强, 疫苗

CLC Number:

TH11
TP6

CHEN Kai, ZHOU Hua.

System Design of a Needle-free Injector for Animal Vaccination

[J]. China Mechanical Engineering, 2010, 21(10): 1231-1234.

陈凯, 周华.

用于动物疫苗注射的无针注射系统的设计

[J]. 中国机械工程, 2010, 21(10): 1231-1234.

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System Design of a Needle-free Injector for Animal Vaccination

用于动物疫苗注射的无针注射系统的设计

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