Analysis of Blood Extraction from a Lancet Puncture


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A computational model was created utilizing the CFD-ACE+ software to model blood flow from a lancet puncture of the skin. A two-dimensional axisymmetric model was developed and the skin tissue was modeled as a porous media. The permeability of the porous media was adjusted to match the blood volume of an experimental end-cap for use with a lancet device. A parametric analysis of the endcap radius shows that volume of blood collected increases as the opening increases, until a saturation point is reached for end-cap radii greater than 7 mm. A similar trend was found when compared with experimental data taken with the same constraints.

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Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2004 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: March 7, 2004
Pages: 275 - 279
Industry sectors: Advanced Materials & Manufacturing | Sensors, MEMS, Electronics
Topic: Micro & Bio Fluidics, Lab-on-Chip
ISBN: 0-9728422-7-6