Combining volume clamp blood pressure measurement and pulse oximetry

Geert Claassen, Edwards Lifesciences

Motivation

With increasing pressure on hospital staff and budget, workflow optimizations are needed. Combining blood pressure and
oxygen saturation measurement into one sensor would help to save time in application and removal of sensors. The goal
of this project was to investigate the feasibility of the simultaneous measurement of blood pressure using the volume
clamp method and arterial oxygenation using pulse-oximetry with one sensor.

Approach

Two prototypes were designed and manufactured. The first prototype measures arterial oxygen saturation only. The
second prototype is a first implementation of a combined sensor, including a signal processing algorithm.
The function of both prototypes has been investigated by verification experiments. The first prototype functions as
expected. The second prototype has not yet reached full functionality but provided valuable information and input for
product improvements.

results

Two prototypes were designed and manufactured. The first prototype measures arterial oxygen saturation only. The
second prototype is a first implementation of a combined sensor, including a signal processing algorithm.
The function of both prototypes has been investigated by verification experiments. The first prototype functions as
expected. The second prototype has not yet reached full functionality but provided valuable information and input for
product improvements.

Geert Claassen MSc PDEng