| 摘要 |
PROBLEM TO BE SOLVED: To provide a blood sampling needle capable of reducing pain during puncture, preventing hemolysis, and sampling blood at sufficient flow rate. SOLUTION: The blood sampling needle 30 for the blood sampling has a hollow body 31 and a hollow extension part 33 extended from the tip of the body 31, with the outer and inner diameters are smaller than the outer and inner diameters of the body 31, respectively. This extension part 33 has 0.30 mm or more of the inner diameter (r<SB>1</SB>) and 20 mm or less of the length (h<SB>1</SB>), and the body 31 has 0.50 mm or more of the inner diameter (r<SB>3</SB>). COPYRIGHT: (C)2010,JPO&INPIT
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