OPTIC SENSOR DEVICE WITH SERS
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention relates to a system for determining a concentration of a substance of interest in a body fluid, more specifically to systems comprising sensor devices for optically detecting compounds such as glucose. The system of the present invention is, e.g., suitable for continuous determination of a concentration of a substance of interest which is present in a body fluid, e.g. a concentration of glucose in blood or interstitial fluid.
11 Citations
36 Claims
-
1. -21. (canceled)
-
22. A system for determining a concentration of a substance of interest in a body fluid, the system comprising:
-
a sensor device adapted to be positioned in direct contact with a body fluid to be analysed, said sensor device defining an analysis volume, at least partly delimited towards the body fluid by a semi-permeable membrane allowing substances of interest from the body fluid to enter the analysis volume, a light source adapted to transfer primary light to the sensor device, wherein the sensor device comprises at least one substantially flat area constituting a first area and at least one substantially flat area constituting a second area, at least one area comprising an optically responsive element, wherein groups of areas are provided, each group of areas forming a common level and the common levels having a predetermined spacing from each other to provide the said difference in distance over which light interacts with compounds and tissue and wherein the first group of areas is formed at a base level of the device and the second group of areas is formed by projections from the said base level to a top level. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
-
Specification