Kuehleinrichtung zur Kryokonservierung und entsprechendes Betriebsverfahren

WO2005036136 A UPAB: 20050517 NOVELTY - Cooling device (A), especially for cryopreservation of biological samples, includes a multiple regulator that detects many temperatures, as control values, and/or adjusts many heating circuits. DETAILED DESCRIPTION - Cooling device (A), especially for cryopreservation of biological samples, comprises a coolant duct (5) for transporting coolant (3) to a cooling chamber (1); a heater (6) with a first heating circuit (P2) for warming (3) being transported to (1); first and second sensors for measuring temperature in (1) and the (3) being transported; and a temperature regulator (11). The new feature is that (11) is a multiple regulator that detects many temperatures, as control values, and/or adjusts many heating circuits. An INDEPENDENT CLAIM is also included for a method of operating the cooling device. USE - The device is used for cryopreservation of biological samples, e.g. stem cells. ADVANTAGE - Measuring temperature at several places in the device improves temperature regulation