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医学科学研究过程中,尤其是对某个器官进行研究时,经常需要在不阻断血流的情况下,对某个器官进行定向性反复给药或者采取血液样本。有鉴于此,我们摸索了这一器官定向性插管方法,介绍如下: 1.穿刺针制备:根据需要,取适宜型号的注射针头一个(例如,做家兔冠状动脉左室支插管,可选用4号针头),从针尖向根部截取针管约1cm,将断端打磨光滑,于断端约0.3cm处弯成约140°的角度备用。2.导管制备:取外径约1.2mm的聚乙烯管,在煮沸的食用油中加热后,拉制成外径适
In medical science research, especially in the study of an organ, it is often necessary to repeatedly administer an organ or take a blood sample without blocking blood flow. In view of this, we explored this organ-oriented intubation, described as follows: 1. Puncture needle preparation: According to need, take a suitable type of injection needle (such as rabbit coronary artery left ventricular cannula, Select needle 4), from the tip to the root of the needle interception about 1cm, the broken ends polished smooth, about 0.3cm at the broken end bent into an angle of about 140 ° standby. 2. Catheter Preparation: take an outer diameter of about 1.2mm polyethylene tube, heated in boiling edible oil, pulled into the outer diameter suitable