Objective: To explore the anatomic features of the deep branch of radial nerve (DBRNs) after leaving supinator-tunnel and provide a method for locating it at body surface.
目的：探讨桡神经深支出旋后肌管后的解剖学特点，为临床手术提供定位方法。
2
The test consists of locating the gaps in a graduated series of sizes of incomplete rings whose radial thickness and gap are equal to one-fifth the diameter of the ring.
这种测试由固定的分等级系列的不完整环的间隙组成，这些环的径向厚度和间隙为环的直径的五分之一。
3
At last, we simulate the characteristic of near wall conductivity of the sheath with groove by locating the groove sheath model in the axial electric field and the radial magnetic field.