G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 1/10 (2006.01) A61B 5/00 (2006.01) A61B 5/15 (2006.01) A61M 5/158 (2006.01) A61M 37/00 (2006.01) B81C 1/00 (2006.01) G01N 33/48 (2006.01) G01N 35/00 (2006.01)
Patent
CA 2391810
A micro-needle is provided which is particularly useful for the minimally invasive sampling of a biological fluid and/or the minimally invasive delivery of a drug or other formulation across the skin. The micro-needle has a structure having a base at a proximal end and a vertex at a distal end, and an open lumen extending there through and through which fluid may be transferred. The structure defines a structural axis that intersects the lumenal axis defined by the open lumen. The point of intersection between these axes is at a point below the vertex of the micro-needle to provide a sharp apex at the distal end of the micro-needle and defines the general configuration of the distal end of the micro-needle, which may be selected or customized depending on the intended use of the microneedle. The micro-needle may be integral with a measurement device for measuring the concentration of a constituent within sampled biological fluid and/or with a fluid reservoir for containing a fluid to be delivered, and may also be used in conjunction with a remote control means. Methods of making and using the micro-needle of the present invention as well as kits comprising one or more of the micro-needles are also provided.
Lifescan Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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