HOLLOW MICRONEEDLE FOR MINIMALLY INVASIVE BLOOD EXTRACTION

摘要

PURPOSE: A hollow micro needle for minimally invasive blood extraction is provided to efficiently extracting blood by having the bevel angle of 50-600 and a wide screen of 2-30μm. CONSTITUTION: A length of a hollow micro needle for blood extraction is 1-5000μm. An inside diameter of the hollow micro needle for the blood extraction is 10-100μm. A bevel angle of the hollow micro needle for the blood extraction is 50-600. A wide screen of a tip pointed part of the hollow micro needle for the blood extraction is 2-30μm. The tip pointed part of the hollow micro needle for the blood extraction is cut in a second direction, a third direction, or a four direction. [Reference numerals] (AA) Tip; (BB) Bevel; (CC) Tip cutting edge angle; (DD) Tip; (EE) Tip cutting edge part; (FF) Tip cutting edge part expansion