Patent ID: 6719738
Filing Date: 2004-04-13
Classification: A61B,A61M

Abstract:
A device for directly delivering an active substance from an exterior source to within human or animal cell tissue, the device comprising a hollow tube substantially circular in cross-section having a proximal end, a distal end, an interior surface defining an inside diameter and a smooth exterior surface made of a contiguous material from the proximal end to the distal end, defining an outside diameter;(a) said exterior surface defining an outside diameter between 100 and 250 micrometers; (b) said interior surface defining an inside diameter between 50 and 150 micrometers; (c) said exterior surface and said interior surface being in fluid communication via a plurality of perforations having diameters between 30 and 70 micrometers; (d) said distal tube end being closed; and (e) said proximal tube end communicating with the exterior source of active substance, wherein said hollow tube is capable of withstanding high pressure delivery of at least 50 bar.