IOP Project

Ambulatory monitoring of blood values: Bio-speckle Interferometry as movement correction on saturation measurement

Projectnumber: IPD083359
Contact: H.P. Urbach
Phone: +31 (0)15 278 94 06

The demographic trend of rising average age stimulates demand for medical care. This necessitates budget control. At the same time consumers expect to get a better quality of care. One of the ways to meet these challenges is to develop robust portable medical monitoring equipment. This could replace part of the expensive intramural care for less expensive and more patient-friendly care at home. The project Hemodynamics by Interferometric Photonics (HIP) fits to this philosophy. The aim is to permit reliable ambulatory saturation monitoring (SpO2). The most important hurdle to be taken is the managing of artifacts created by movement of the sensor and the patient.


As a correction strategy, Bio-speckle Interferometry (BSI) is introduced as a secondary sensor. Thanks to the development of this secondary, corrective sensor system and carefully designed signal processing, this might overcome the influence of movement artifacts from the SpO2-measurements. In the long run there is an even more appealing perspective. There is a possibility that the combination of SpO2 and BSI can deliver a better parameter for actual perfusion than the present combination of heart rate and saturation.


An interesting by-product is a hybrid soft- and hardware testing platform Eindhoven based company Hemolab develops as model for a piece of the human vascular system. This platform might have wider use in other research projects.

The description of this project is available as an Adobe Acrobat PDF file:

Adobe Acrobat PDF file  SN PD 9 (82 KB)


Delft University of Technology
Eindhoven University of Technology
Philips Research