Patent ID: 7279135
Filing Date: 2007-10-09
Classification: B01J,B01L,C40B,G01N

Abstract:
1. A probe for providing micro liquid drops comprising: a main rod having an upper end and a lower end; a limiting portion disposed on said upper end of said main rod; a probe tip portion disposed on said lower end of said main rod, said probe tip portion having a substantially conical outer surface and contacting end, a diameter of said contacting end being less than 0.5 mm; said conical outer surface having: (a) a plurality of guiding flow ways extending from said contacting end and substantially evenly-distributed on said conical outer surface; said guiding flow ways having a first volume; and (b) a plurality of storing recesses; each of said storing recess being around said conical outer surface with a predetermined depth and a cross-sectional shape; said storing recesses communicating with said guiding flow ways; said storing recesses having a second volume that is larger than said first volume; so that said main rod can store and provide micro liquid by capillarity.