Patent ID: 11925479
Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A method in accordance with claim 1, characterized in that the blood temperature in the extracorporeal circuit is measured and a relationship is established between the measured value (Tart) and the value determined in accordance with formula (1) by regression, preferably by linear regression, preferably in accordance with the relationship

Tart=a Tbi+b  (6)

with provision preferably being made that Tart is calculated from the regression equation and that the body temperature is determined in accordance with the relationship

TKörper=TUmgebung+(Tart−TUmgebung)exp(αL/Qb)  (7)

where α is the thermal conductivity per length unit of the hose piece of the extracorporeal circuit between the arterial vessel port and the heat exchanger and L is the length of this hose piece.