Patent ID: 8257392
Filing Date: 2012-09-04
Classification: A61B,A61M

Abstract:
1. A medical needle, comprising: a main body having a proximal end and a distal end, the main body extending along a longitudinal axis from the proximal end to the distal end; and a tip portion formed at the distal end of the main body, wherein the tip portion comprises: a first inclined region having a proximal end connected to the distal end of the main body and a distal end, having cross-sectional area decreasing progressively from the proximal end thereof toward the distal end thereof, and having upper and lower surfaces that are flat and inclined a first predetermined angle with respect to the longitudinal axis; a second inclined region having a proximal end connected to the distal end of the first inclined region and a distal end, having cross-sectional area decreasing progressively from the proximal end thereof toward the distal end thereof, having upper and lower surfaces that are flat and inclined at a second predetermined angle with respect to the longitudinal axis, and having side surfaces each of which has a curved portion rounded at a predetermined radius of curvature; and a tip formed at the distal end of the second inclined region and having a distal end, wherein upper and lower surfaces of the tip are flat and close to each other such that the distal end of the tip is flat and sharp and side surfaces of the tip become rounder and blunter as they go toward the curved portions of the inclined region.