Koninklijke Philips Corporation N.v.

Bernardus Leonardus Bakker

Michael Cornelis Van Beek

Marjolein Van Der Voort

Gerhardus Wilhelmus Lucassen

Teunis Willem Tukker

Wouter Harry Jacinth Rensen

Wouter Harry Rensen

Gerald Lucassen

Hendrikus Antonius Cornelus Maria Compen

A measurement head has an objective for imaging of a target area such as including a capillary vessel in the skin. The measurement head does not require a lateral shifting of the optical axis of the objective. Transverse relative movements between the objective and a capillary vessel in the skin are performed by mechanically shifting the skin with respect to the objective of the measurement head. Moreover, the measurement head is adapted to host one or more pressure sensors for measuring the contact pressure between the measurement head and the skin. Pressure information may be exploited in order to calibrate a spectroscopic analyzer, and/or to regulate the contact pressure within predefined margins specifying an optimum range of contact pressure for spectroscopic examination of capillary vessels.

Measurement head for non-invasive blood analysis

A property of a fluid is determined spectroscopically, such as for the purposes of in vivo blood analysis. First the position of a volume of interest through which the fluid flows is determined by an optical detection step by making use of an objective. Preferably the optical detection step is an imaging step. Next the objective is moved to bring the focal point of the objective into coincidence with the volume of interest. In this position an optical spectroscopic step is performed. This has the advantage that the measurement beam for performing the optical spectroscopy travels along the optical axis for optimum efficiency.

Method of determining a property of a fluid and spectroscopic system

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Nijmegen, Netherlands

Bernardus Leonardus Bakker