| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injection needle capable of easy puncture into the skin and relieving the pain at the time of puncture, and permitting efficient working of the needle tip. <P>SOLUTION: The injection needle 1 has a blade face 3 inclined relative to the axis S1 of a needle cannula 2 from one side D1 in the direction of diameter at the distal end of the needle cannula 2 toward the other side D2 in a diameter direction at the proximal end 2c of the needle cannula 2. The blade face 3 passes the center C between the inner and outer peripheral faces 2d and 2e at the distal end of the needle cannula in the diameter direction and is located within the plane including the axis S1 of the needle cannula 2 in the diameter direction to be formed as a part of one conical face F with the center axis S2 set parallel to the axis S1. <P>COPYRIGHT: (C)2008,JPO&INPIT |
