CPC A61B 5/412 (2013.01) [A61B 5/1491 (2013.01); A61B 5/14552 (2013.01); A61B 5/6831 (2013.01); A61B 5/742 (2013.01)] | 15 Claims |
1. A sensor device comprising:
a housing defining a cavity, an inlet to receive fluid pumped from an instrument device, an outlet to return the fluid to a fluid reservoir, and a fluid channel defined inside the cavity between the inlet and the outlet;
a heat pump mounted inside the cavity, the heat pump having a side surface thermally coupled to the fluid channel, and an opposite side surface thermally coupled to a plate, the heat pump configured to induce a temperature change;
a sensor unit aligned with an aperture in the plate, the sensor unit including an optical component and a thermal component, the optical component being configured to measure a vascular endothelial response from the induced temperature change;
a processor; and
a memory storing instructions that, when executed by the processor, cause the processor to:
calculate the vascular endothelial response as a difference between a first measurement taken before the temperature change and a second measurement taken after the temperature change; and
use the vascular endothelial response to screen for sepsis.
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