5 results about "Electric impedance tomography" patented technology

The present invention relates to an operating method of a lung monitoring system operated by at least one processor, the operating method comprising the steps of: acquiring a plurality of electrical impedance tomography (EIT) images of the chest of a patient and a plurality of respiratory sound intensity images generated on the basis of respiratory sound signals acquired from the chest of the patient; mapping, on the basis of a plurality of pieces of respiratory interval information acquired by binning a respiratory signal of the patient, an EIT image and a respiratory sound intensity image corresponding to each respiratory interval to each other; and inputting, into a respiratory anomaly prediction model, at least one pair of the EIT image and the respiratory sound intensity image included in each respiratory interval, to acquire a prediction result for respiratory anomalies of the patient.

A method for reconstructing the distribution of the electrical properties of at least one material of a body including a cylindrical part containing a fluid, using a neural network and data on electrical values of the body measured beforehand by electrical impedance tomography using electrodes arranged around a periphery of the cylindrical part of the body, each electrode having been excited by a potential of predefined form. The neural network including an autoencoder having a plurality of levels (L1, . . . , LJ) each comprising at least one convolution layer and at least one dropout layer, and an attention module comprising attention gates (AG1, . . . , AGJ-1), each having an associated attention signal (gj).

An EIT system includes an EIT device configured to capture impedance images of a patient, a display configured to display information to a user, and a memory device. The EIT system is configured to generate a ventilation map of lungs of the patient. The EIT system is also configured to generate a perfusion map of the lungs of the patient. The EIT system is further configured to compare ventilation pixel values of the ventilation map to respective perfusion pixel values of the perfusion map and generate a V̇ / Q̇ map. The pixels in the V̇ / Q̇ map are separated into at least three groups including mostly ventilated pixels, mostly perfused pixels, and balanced pixels. The V̇ / Q̇ map is produced on the display where each of the mostly ventilated pixels, the mostly perfused pixels, and the balanced pixels are graphically distinguished.

A wearable neural stimulation and sensing device includes a headband worn on a head. The surface of the headband has electrode mounting recesses that can flexibly mount a stimulation electrode and a sensing electrode. The stimulation electrode includes a shallow stimulation electrode and a deep stimulation electrode that can respectively perform trigeminal nerve stimulation (TNS) and temporal interference brain stimulation (TIBS) to implement non-invasive electrical stimulation for shallow and deep brain regions. The sensing electrode, used for electrical impedance tomography, monitors the physiological data of brain activity in real time. A control unit adjusts the electrical stimulation parameter of the stimulation electrode and the measurement parameter of the sensing electrode. A processing unit processes the obtained physiological data. The present invention features precise stimulation, compact size, and portability, making it suitable for the treatment and monitoring of neurodegenerative diseases, thereby improving the quality of life of patients.

The application relates to a sports rehabilitation monitoring system, which comprises a wearable electrical impedance tomography device and a state feedback device, the wearable electrical impedance tomography device comprising a data processing unit and at least two electrode arrays; the at least two electrode arrays are electrically connected with the data processing unit; the at least two electrode arrays are respectively arranged at two ends of a target part of a subject, and are used for acquiring real-time physical sign data of the target part of the subject; the data processing unit sends the physical sign data to the state feedback device in real time; and the state feedback device feeds back muscle information of the target part of the subject in real time based on the physical sign data. The application provides a muscle movement state monitoring mode with less limitation and a sports rehabilitation monitoring system. The muscle movement state monitoring mode in the current sports rehabilitation treatment has the problem of great use limitation.