System for withdrawing body fluid
AssigneeRoche Diagnostics Operations, Inc.
InventorsGuenther Schmelzeisen-Redeker, Thomas Weiss, Frank Deck, Klaus Peter Ebert
Life of this patent
Estimating the term…
Abstract
The present invention relates to a compression device for stimulating the efflux of a body fluid from a body part. The device has a compression unit with a pressure-application region made of a deformable material, the region being formed to generate a repulsive force between the body part and the compression unit. The repulsive force passes through a force maximum then decreases to serve as an indication that the body part is guided sufficiently firmly and far enough onto the compression unit.
Claims6
A lancing device comprising a compression unit for stimulating the efflux of a body fluid from a body part, the compression unit having a pressure-application region made of a deformable material, the pressure-application region comprising an opening with a rim, wherein the width of the opening is reduced as the body part is pressed against the rim, wherein the compression unit includes a plate and the pressure-application region includes a lower conically tapering region widening towards the plate and an upper conically tapering region narrowing towards the plate.
Dependencies are inferred from the claim text.