An improved fixation method of the indwelling needle inserted in the rat tail vein

VernacularTitle:大鼠尾静脉留置针固定方法的改进
Author: Min YANG ; Lijian CHEN ; Ruimin WANG ; Tongling LI
Publication Type:Journal Article
Keywords: Rat; Tail vein; Intravenous indwelling needle; Indwelling time
From: Chinese Journal of Comparative Medicine 2015;(1):80-82
CountryChina
Language:Chinese
Abstract: Objective To improve the fixation method of indwelling needle inserted in the tail vein in rats to keep the inserted needle for a longer indwelling time .Methods One hundred healthy Wistar rats ( age 5~6 months, male:female=1:1) were randomly divided into two groups: the experimental group and the control group .Rats in both groups received the same tail vein indwelling needle puncture and cannulation .The control group got the traditional fixation , namely fixed by sticking with 3M transparent dressing paste .The experimental group received in addition to the traditional fixation, a 0.1 mm-thick aluminum tube placed outside the needle fixation site .The indwelling time in the rats were recorded and analyzed .Results The indwelling time was (166.86 ±9.03) h and (20.24 ±5.04) h in the experimental and control groups, respectively (t =68.546, P<0.01).Conclusions Our improved method is safe and reliable.It can prolong the indwelling time of the punctured intravenous indwelling needle , and provides a useful rat model in studies on the complications of intravenous indwelling needle kept for a longer time .