Patent ID: 6024138
Filing Date: 2000-02-15
Classification: A61B,B01L,G01N

Abstract:
A dispensing device for dispensing small quantities of sample fluid comprising(a) a compressible balloon having an interior space, at least one wall and at least one opening through which the interior space communicates with the exterior of the balloon, said at least one opening having a flow resistance;(b) a capillary inserted through said at least one wall of the balloon, wherein said capillary comprises two ends with the first end communicating with said interior space and the second end extending to the exterior of the balloon;wherein, when said capillary holds the sample fluid and the balloon is compressed, said flow resistance assists the sample fluid to be expelled from the capillary; and(c) a holding device, wherein the handling of the holding device has no effect on the pressure in the interior space of said balloon.