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Universitatsklinikum Hamburg-Eppendorf

Wedegärtner, Ulrike

Jin Yamamura

Ulrike Wedegaertner

Klaus Valett

Christian Ruprecht

Fabian Kording

Kai-Kristoph Fehrs

Ulrike WEDEGÄRTNER

An exemplary device for detecting a heartbeat of a patient can be provided which can include a transmitter which can provide ultrasonic waves, a receiver that can receive Doppler-shifted ultrasonic waves, and a hardware analyzer coupled to the receiver and which can evaluate a particular moment of the heartbeat of the patient based on a time-dependent signal obtained from the receiver. The hardware analyzer device can comprise a spectrum analyzer configured to extract time-varying frequency component(s) from the time-dependent signal provided by the receiver, and a processing module which can evaluate the moment of the heartbeat based on a variation of at least one of the frequency components in time. The processing module can determine a window of interest (WOI) in time from the variation of the frequency component(s) in time, and the moment when the time-dependent signal provided by the receiver assumes a maximum within the WOI as the moment of the heartbeat.

Ultrasonic device for detecting the heartbeat of a patient

An ultrasonic sensor according to the invention comprises at least one ultrasonic transducer, at least one resistor connected to the ultrasonic transducer and a housing accommodating the ultrasonic transducer and the resistor. The ultrasonic sensor is configured in such a way, that it is not or only slightly ferromagnetic, so that the ultrasonic sensor acts neutrally with respect to an external magnetic field (for example in an MRT).

Ultrasonic sensor for a cardiotocograph to be used within magnetic resonance tomography

Growing community of inventors

Hamburg, Germany

Jin Yamamura