5 results about "Bipolar lead" patented technology

Described is a detection device (1) for detecting cardiac electrical signals, wearable by a patient, comprising a right lower electrode (11) and a left lower electrode (12), for detecting cardiac electrical potentials, positioned in alignment with each other on a first horizontal axis (x′), spaced apart from each other by a first distance (d1); a right upper electrode (13) and a left upper electrode (14), for detecting cardiac electrical potentials, positioned above said lower electrodes (11, 12), and being aligned with each other on a second horizontal axis (x″), parallel to said first horizontal axis (x′), and spaced from each other by a second distance (d2), greater than or equal to said first distance (d1); and a logic control unit (U), electrically connected to said electrodes (11, 12, 13, 14), wherein said logic control unit (U) is configured to receive a first bipolar lead (DI′), detected between said left upper electrode (14) and said right upper electrode (13); a second bipolar lead (DII′), detected between said left lower electrode (12) and said right upper electrode (13); a third bipolar lead (DIII′), detected between said left lower electrode (12) and said left upper electrode (14); a first unipolar lead (V1′), detected between said right lower electrode (11) and a first average potential, and a second unipolar lead (V2′), detected between said left lower electrode (12) and said first average potential, wherein said first average potential is equal to the average of detected signals, with respect to a reference potential, on said right upper electrode (13), on said left upper electrode (14) and on said left lower electrode (12). The invention also relates to a system comprising said device and a relative method of operation.

To efficiently manufacture a highly durable biplate for a bipolar lead-acid battery, which is manufactured by bringing both end faces of a conductor arranged in a through-hole of a substrate into contact with a positive electrode current collector plate and a negative electrode current collector plate arranged on both sides of the substrate and joining them by a method such as resistance welding.SOLUTION: A bipolar lead-acid battery includes a substrate 121 arranged between adjacent cell members 110, the substrate 121 includes a through hole 121a in the thickness direction, a conductor 160 arranged in the through hole 121a, a positive current collector 111a that constitutes one of the cell members 110 arranged on one side of the substrate 121, and a negative current collector 112a that constitutes the other cell member 110 arranged on the other side, both end faces of the conductor 160 joined to the positive current collector 111a and the negative current collector 112a, respectively, and the positive current collector 111a and the conductor 160 are formed from a lead alloy having the same components.SELECTED DRAWING: Figure 2

The application discloses a kind of based on complex brain network and Fiedler value analysis's seizure prediction method, belong to electroencephalogram seizure prediction field.Aim at the seizure EEG data is filtered and preprocessed, 23 groups of bipolar lead is regarded as 23 points, and it is divided into six brain regions.Transmission entropy between each electrode signal is calculated, and threshold processing is carried out to generate adjacency matrix, to build brain network and calculate its Fiedler value.The standard curve is obtained by polynomial fitting curve to describe the change of Fiedler value with time, and compared with the actual fitting curve of single patient, dynamic time warping distance DTW is calculated.The results show that there is high similarity between most standard curves and actual curves, which verifies the effectiveness and accuracy of the method.Overall, the method shows high reliability in identifying characteristics of patients with epilepsy, and can provide important reference for subsequent diagnosis and treatment.

An example system includes an implantable medical device (IMD) configured to: acquire an integrated bipolar electrogram (EGM) signal of the first chamber sensed via a first lead implanted in a first chamber of the heart; and at least one of: identifying an intrinsic event of the second chamber sensed via a second lead implanted in a second chamber of the heart; or identifying a pacing event of the second chamber sensed via the second lead; and processing circuitry configured to: generate a time window of the EGM signal based on one or more of the identified intrinsic event or the identified pacing event; determine a value of a characteristic of the EGM signal during the time window; determine that the value of the characteristic satisfies a far-field activity threshold; and adjust a sensitivity threshold of the IMD based on the determination that the value of the characteristic satisfies the far-field activity threshold.