Patent ID: 8801629

Claim:
A dual-wing percutaneous needle comprising: a sampling needle having a lower end; an upper end; a diameter; a length; an external surface; and a needle head formed in the lower end of the needle; an outer needle being hollow, detachably mounted around the sampling needle and having a lower end; an upper end; an external surface; a diameter being larger than the diameter of the sampling needle to allow the sampling needle to mount in the outer needle; and a length being shorter than the length of the sampling needle to allow the lower end of the sampling needle to extend out of the lower end of the outer needle; a transverse position wing being lamellar and stuck on the external surface of the sampling needle near the upper end of the sampling needle; and a longitudinal position wing being lamellar, stuck on the external surface of the sampling needle, the longitudinal position wing being spaced from the transverse position wing at an interval along the length of the sampling needle, and the longitudinal position wing being perpendicular to the transverse position wing.