Assertion: umbilical vein | /r/Causes | the medication failure
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Source sentences:
text: Because the terminal concordant blood vessel that is difficult for puncturing of this utility model needle body, overcome the normal injection needle tip sharp keen in the process of injecting drug use syringe needle usually puncture the defective that umbilical vein causes the medication failure; This utility model has a ring groove in the joint portion of needle body and needle handle simultaneously; During use the broken ends of fractured bone of the disposable umbilical vein trocar from neonatal umbilical cord inserted in the umbilical vein; With operation suture thread with umbilical vein together with the umbilical cord ligation in the ring groove of the needle body of overcoat bobbin and needle handle joint portion; Extract in the sleeve pipe behind the pin can be from sleeve pipe outside the needle handle medicine-pouring port injectable drug of pin, this has just effectively overcome umbilical cord, and very smooth syringe needle is difficult for fixed defective puncturing successfully afterwards.