Solomowitz B H
Interfaith Medical Center, Department of Dentistry, Brooklyn, New York.
Anesth Prog. 1993;40(1):20-2.
This article presents a different method of venous cannulation. It has been used successfully to teach dental residents working on pediatric and developmentally disabled patients. The technique includes using a syringe of 1% lidocaine hydrochloride attached to a 25-ga needle to produce a skin wheal by "jet injection." This is accomplished by placing the bevel of the needle downward and forcing the syringe in a downward and backward direction, with pressure being continuously exerted on the plunger. A 20-ga, 1 1/4-inch catheter is then attached to the syringe containing the remaining lidocaine hydrochloride. The catheter is bent, with its bevel up, approximately three-fourths of the way from the tip to form a gradually sloping bend of approximately 40 degrees to 45 degrees. The catheter is then inserted into the skin wheal and advanced into the vein. The advantages of this technique are that it (1) can eliminate the pain associated with a subcutaneous infiltration of a local anesthetic solution, (2) provides a method of venous cannulation that is easier to master by the novice, and (3) gives a visual check on successful catheterization of the vein.
本文介绍了一种不同的静脉插管方法。它已成功用于培训治疗儿科和发育障碍患者的牙科住院医师。该技术包括使用连接25号针头的1%盐酸利多卡因注射器通过“喷射注射”产生皮丘。这是通过将针头斜面朝下，将注射器向下和向后推，同时持续按压活塞来完成的。然后将一根20号、1 1/4英寸的导管连接到装有剩余盐酸利多卡因的注射器上。将导管弯曲，使其斜面朝上，从尖端起大约四分之三处弯曲，形成一个大约40度到45度的逐渐倾斜的弯度。然后将导管插入皮丘并推进静脉。该技术的优点是：（1）可以消除局部麻醉溶液皮下浸润相关的疼痛；（2）提供一种静脉插管方法，新手更容易掌握；（3）可以直观检查静脉插管是否成功。
