Abstract: A method for a thawing device configured to thaw/heat a blood product comprised in a container, the method comprising the steps of performing a massaging motion, by a first actuator, on one or more areas of an outer surface of the container, obtaining measurements, from a reflectance sensor coupled to an antenna, the measurements at least being indicative of phase of received radio frequency, RF, waves having a second frequency and being reflected off the container, determining a third frequency, wherein the third frequency is determined by a predetermined relation dependent on the second frequency and the obtained measurements, controlling a transmitter, communicatively coupled to the antenna, to emit RF waves, using the obtained measurements, wherein the emitted RF waves are emitted at a third frequency and are directed by the antenna to propagate towards the container, wherein the third frequency is in the range of 10 to 900 MHz.

Abstract: A heater (100) for thawing/warming a perishable dielectric load (130) contains: a heating chamber (140) for holding the perishable dielectric load (130) during thawing/warming thereof, a transmitter unit (110) generating electromagnetic energy (RFs) having predefined spectral properties, an emitting element (150) producing an electromagnetic field in the perishable dielectric load (130) based on the electromagnetic energy (RFs) from the transmitter unit (110), a tuning circuit (115) adjusting an overall impedance (Z) of the emitting element (150), the tuning circuit (115) and the heating chamber (140) so that the overall impedance (Z) matches an output impedance of the transmitter unit (110), and a control unit (120) measuring the overall impedance (Z) during thawing/warming of the perishable dielectric load (130) and repeatedly generating at least one control signal (Tn) causing the tuning circuit (115) to adjust the overall impedance (Z) to match the output impedance of the transmitter unit (110).

Abstract: A heater (100) for thawing/warming a perishable dielectric load (130) contains: a heating chamber (140) for holding the perishable dielectric load (130) during thawing/warming thereof, a transmitter unit (110) generating electromagnetic energy (RFs) having predefined spectral properties, an emitting element (150) producing an electromagnetic field in the perishable dielectric load (130) based on the electromagnetic energy (RFs) from the transmitter unit (110), a tuning circuit (115) adjusting an overall impedance (Z) of the emitting element (150), the tuning circuit (115) and the heating chamber (140) so that the overall impedance (Z) matches an output impedance of the transmitter unit (110), and a control unit (120) measuring the overall impedance (Z) during thawing/warming of the perishable dielectric load (130) and repeatedly generating at least one control signal (Tn) causing the tuning circuit (115) to adjust the overall impedance (Z) to match the output impedance of the transmitter unit (110).

Abstract: A control unit for a ventilator is arranged to receive, from each of a number of electrode pairs on an esophageal catheter a bioelectric signal having an ECG component. The control unit has a calculating unit that determines the ECG component of each of the bioelectric signals and a position unit that determines the position of the catheter in relation to the patient's diaphragm based on a comparison the amplitudes of ECG components of the bioelectric signals.

Abstract: A control unit for a ventilator is arranged to receive, from each of a number of electrode pairs on an esophageal catheter a bioelectric signal having an ECG component. The control unit has a calculating unit that determines the ECG component of each of the bioelectric signals and a position unit that determines the position of the catheter in relation to the patient's diaphragm based on a comparison the amplitudes of ECG components of the bioelectric signals.