| 摘要 |
PROBLEM TO BE SOLVED: To improve a cutting degree at the time of needling and to set a current supply range to a pinpoint. SOLUTION: An electric stimulation needle has a second bevel 12 comprising an inclined surface, of which the area is smaller than the inclined surface of a first bevel 11, other than the first bevel 11 and only the second bevel 12 is not coated with an insulating film. Accordingly, the cutting degree at the time of needling is kept well by the second bevel 12 and, since the area of the inclined surface constituting the second bevel 12 is smaller than that of the inclined surface of the first bevel, the current supply range can be made narrow and, when the electric stimulation needle is thrust in the body of a person to allow a current to flow, the position of a nerve to which an anesthetic can be administered can be found out accurately and efficiently. |
