Device and process for electrical impedance tomography (eit) with identification of a heart region
AssigneeDrägerwerk AG & Co. KGaA
InventorBirgit STENDER
Life of this patent
Estimating the term…
Abstract
An electrical impedance tomography (EIT) device (30) with an electrode array (33), with a measured value acquisition and feed unit (40), with a computing/control unit (70) and with a data input unit (50). The computing/control unit (70) coordinates the operation and the data acquisition of EIT data (3) and is configured to identify a heart region.
Claims16
A device for determining a position in space of a heart region in relation to regions of the lungs in a thorax of a patient, the device comprising:
- a data input unit configured to receive data and provide an electrical impedance tomography (EIT) data set;
- a computing and control unit configured to determine a first data set with data that indicates spatial and local distributions of impedance values and/or impedance changes of regions of the lungs in the thorax and configured to process the first data set and the EIT data set and based thereon to determine a first output signal, which indicates a current position in space of regions of the lungs in the thorax;
- and configured to process the EIT data set to determine a second data set with data that indicates spatial and local distributions of the impedance values and/or impedance changes of regions of the heart in the thorax and configured to process the second data set and the EIT data set and based thereon to determine a second output signal, which indicates a current position in space of a heart region in relation to regions of the lungs in the thorax;
- and
- a data output unit configured to provide the first output signal and configured to provide the second output signal.
A device in accordance with one of the above claims, wherein the computing and control unit is configured to determine a position of an electrode array on the thorax of the patient based on the first data set and the second data set.
A device in accordance with one of the above claims, wherein the computing and control unit is configured to continuously determine the second data set from EIT data, and wherein the computing and control unit is further configured to take into account the second data set during the data processing of the chronologically later EIT data.
A process for operating a device for determining a position in space of a heart region in relation to regions of the lungs in a thorax of a patient, the process comprising the steps of:
- providing the device, wherein the device comprises:
- a data input unit configured to receive data and provide an electrical impedance tomography (EIT) data set;
- a computing and control unit configured to determine a first data set with data that indicates spatial and local distributions of impedance values and/or impedance changes of regions of the lungs in the thorax and configured to process the first data set and the EIT data set and based thereon to determine a first output signal, which indicates a current position in space of regions of the lungs in the thorax;
- and configured to process the EIT data set to determine a second data set with data that indicates spatial and local distributions of the impedance values and/or impedance changes of regions of the heart in the thorax and configured to process the second data set and the EIT data set and based thereon to determine a second output signal, which indicates a current position in space of a heart region in relation to regions of the lungs in the thorax;
- and a data output unit configured to provide the first output signal and configured to provide the second output signal;
- receiving the EIT data set;
- determining the first data set of spatial and local distributions of impedance values and/or impedance changes of regions of the lungs in the thorax;
- and
- determining the second data set of spatial and local distributions of impedance values and/or impedance changes of regions of the heart in the thorax.
A process for determining a position in space of a heart region in relation to regions of the lungs in a thorax of a patient, the process comprising the steps of:
- providing an electrical impedance tomography (EIT) data set;
- determining a first data set with data that indicate spatial and local distributions of impedance values and/or impedance changes of regions of the lungs in the thorax on the basis of the data set of EIT data;
- determining and providing a first output signal that indicates a current position in space of regions of the lungs in the thorax based on the EIT data set as well as based on the first data set;
- determining a second data set with data that indicate spatial and local -distributions of the impedance values and/or impedance changes of regions of the heart in the thorax based on the EIT data set;
- and
- determining and providing a second output signal, which indicates a current position in space of a heart region in relation to regions of the lungs in the thorax, based on the EIT data set as well as based on the second data set.
Dependencies are inferred from the claim text.