Radiometer Medical Aps

Christian Strange

Peter Aage Frischauf

Thomas Kjaer

Peter Frischauf

Thomas KJÆR

The invention relates to a porous optical fiber for the detection of an analyte in a fluid by optical probing. The optical fiber has a first end and a second end opposite to the first end, as seen in a longitudinal direction, and a circumferential surface delimiting the optical fiber in radial directions perpendicular to the longitudinal direction. The optical fiber comprises a core adapted for supporting at least one optical mode propagating in the longitudinal direction, the core having a circumferential interface delimiting the core in the radial directions. The optical fiber further comprises pores penetrating from an opening at the circumferential surface through the circumferential interface into the core of the optical fiber, wherein a cross-sectional dimension of the openings is dimensioned so as to prevent a particulate fraction of the fluid from entering the pores, while allowing the analyte to enter the pores.

Porous optical fiber for the detection of an analyte in a fluid

The present invention relates to a sensor assembly () for body fluids. The sensor assembly () comprises: a measurement chamber () extending in an axial direction from an inlet end () to an outlet end (), the measurement chamber having a transverse cross-section with side walls () defining a chamber width in a horizontal direction, and with top and bottom walls () defining a chamber height in a vertical direction, each of the side walls (), top wall () and bottom wall () having a respective wall wettability for aqueous solutions; a first sensor (-) adapted to measure a first parameter of body fluids, the first sensor (-) having a first sensor surface (-) exposed to the inside of the measurement chamber at a first axial position, the first sensor surface (-) having a first wettability for aqueous solutions; and a second sensor () adapted to measure a second parameter of body fluids, the second sensor () having a second sensor surface () exposed to the inside of the measurement chamber () at a second axial position upstream or downstream from the first axial position, the second sensor surface () having a second wettability for aqueous solutions higher than the first wettability. At the second axial position, the chamber width exceeds the width of the second sensor surface (), and the measurement chamber has a widening () in a horizontal direction as compared to the first axial position.

Multiple-use sensor assembly for body fluids

The present invention relates to a sensor assembly for body fluids. The sensor assembly includes a measurement chamber having side walls and top and bottom walls, each of the walls having a respective wall wettability for aqueous solutions; a first sensor adapted to measure a first parameter of body fluids, having a surface having a first wettability for aqueous solutions exposed to the measurement chamber at a first axial position, and a second sensor adapted to measure a second parameter of body fluids, having a surface having a second wettability for aqueous solutions higher than the first wettability exposed to the measurement chamber at a second axial position upstream or downstream from the first axial position. At the second axial position, the chamber width exceeds the width of the second sensor surface, and the measurement chamber has a widening in a horizontal direction as compared to the first axial position.

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Skibby, Denmark

Christian Strange