Measurement device for use at e.g. finger, to determine oxygen saturation in blood, has upper and lower housing elements, which are not separable from each other, and flexibly connected with each other by connecting element

The device (1) has upper and lower housing elements (8, 9), which are not separable from each other. The housing elements are flexibly connected with each other by a connecting element (7). The connecting element is integrated with a spring (7.1). A transmission unit (2) i.e. LED, and a reception unit (3) i.e. photodetector, are arranged in the lower and upper housing elements, respectively. An evaluation unit (6) is integrated in the upper or lower housing element. The evaluation unit evaluates signals from the reception unit and provides measured values to a display unit (4) for display. Die Erfindung betrifft eine Messvorrichtung zur Anbringung an Körperorganen, wie Finger oder Zehen zur Bestimmung physiologischer Parameter, insbesondere Sauerstoffsättigung im Blut, bestehend aus Sendeeinheit, Empfangseinheit, Anzeigeeinheit, Versorgungseinheit, Auswerteeinheit, Federelement, Verbindungselement sowie Gehäuseelementen, die dadurch gekennzeichnet ist, dass das oberen Gehäuseelement (8) mit dem unteren Gehäuseelement (9) der Messvorrichtung (1), über zumindest ein Verbindungselement (7), untrennbar und flexibel miteinander verbunden ist.