Objective To investigate the mechanism of electrothrombosis by copper needle, in order to supply the referential data for clinical treatment of vessel deformity.

目的研究铜针电栓塞血管的机制，为临床治疗提供参考依据。

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Flat handle needle: the handle is made of cooper or stainless steel with traditional technics. The copper handle includes two kinds of trpes: passivation and silver-coated in the surface.

平柄针：针柄采用传统工艺制作，分铜柄和不锈钢柄两种，铜柄表面有钝化和镀银两种。

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Each kind of electronic needle, purifies copper, hard, the stainless steel, and each kind of precise self-propelled component.

各种电子插针、精致铜、铁、不锈钢、铝等各种精密非标自动车件。

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Scientists used the microscope to control a tiny, super-sharp needle along a copper surface, IBM said.

WSJ: IBM makes tiny movie by pushing molecules around