Cimon Medical As

General Electric Company

Torbjorn Hergum

Hans Garmann Torp

Kjell Kristoffersen

Lasse Lovstakken

Johan Kirkhorn

Tore Gruner Bjastad

A system for monitoring blood flow in a patient, the system comprising: a single-element disc-shaped ultrasound transducer for fastening to the patient and a controller subsystem. The controller subsystem is configured to: control the ultrasound transducer to transmit a series of plane-wave pulses into the patient in a propagation direction; sample reflections of the plane-wave pulses, received at the ultrasound transducer, from a region within the patient, to generate pulse-Doppler response signals; and process the pulse-Doppler response signals to calculate a blood flow curve for waveform analysis.

Ultrasound blood-flow monitoring

A system for monitoring blood flow in a patient comprises a first unit having an ultrasound transducer and a fastener for fastening the unit to the patient. A controller subsystem comprises the first unit and a separate second unit. The controller subsystem is configured to: control the ultrasound transducer to transmit plane-wave pulses into the patient in a propagation direction; sample reflections of the plane-wave pulses, received at the ultrasound transducer, from a region within the patient, to generate pulse-Doppler response signals; and process the pulse-Doppler response signals to estimate a series of values, over time, of a measure proportional, but not equal, to the total blood volume flow passing through the region. A monitoring subsystem is configured to monitor the series of values over time and to generate a signal if a set of one or more of the values satisfies a predetermined criterion.

Certain embodiments of the present technology provide systems and methods that provide reduction of multiline artifacts in Doppler imaging. Certain embodiments provide for various ensembles of transmit beams at different spatial locations and overlapping receive beams between the locations. Certain embodiments provide for calculating various auto-correlation estimates based on the received beams and then combining the auto-correlation estimates to create an image. In certain embodiments, combining the auto-correlation estimates comprises applying a linear interpolation filter that decreases the weight applied for receive beams that are spatially located further away from the transmit beam.

Growing community of inventors

Os, Norway

Torbjorn Hergum