Development of the Syringe Needle Auto-Detaching Device

In nowadays\´ medical care, needle-stick injury accounts for a great proportion in all of the accidents. For example when doctors and nurses do the acts of medical treatment, or when relevant personnel dispose of the medical wastes, it is a high probability that they are injured by the used syringe needle. Because there is a serious potential fatal crisis in the accidents of needle-stick injury, for example, the diseases infected by blood such as hepatitis, AIDS, syphilis, etc. may infect the relevant doctors and nurses through the used syringe needle, it indeed causes a great damage. The statistical analysis also indicates that the main cause of the accident of needle-stick injury is the medical personnel\´s chronic action of "recovering" the needle after injection. Such carelessness of this action may cause accidents. The paper aims at applying the electronic technique to the needling instrument for the purpose of detaching the needle automatically, i.e. an action that can detach the used needles from the syringe and then collect respectively. Thus, it can effectively avoid the accident of needle-stick injury or even the case of serious infection when "recovering" the needle.