7 results about "Bipolar signal" patented technology

An electrosurgical system having an electrosurgical device, an accessory charging circuit, and an electrosurgical unit is disclosed. The electrosurgical device is operable in at least one of a monopolar mode and a bipolar mode. The electrosurgical unit electrically is coupled to the electrosurgical device and the accessory charging circuit. The electrosurgical unit provides one of a monopolar RF energy signal and a bipolar RF energy signal to the electrosurgical device corresponds with an activated mode and a bipolar signal to the accessory charging circuit.

A method of training a hierarchical neural network in hardware comprising a plurality of neurons having tree structure connections between respective ones of the plurality of neurons to compute plausible inferences based on input data. The method includes initiating a WTA neuron ensemble to connect to data input neurons and produce a winner-take-all, attaching data records match with top neurons and branching out at WTA junctions to form a hierarchy network tree, converting a stream of the input data into neuron bipolar signals, updating neuron weights with Hebbian and anti-Hebbian rules, and repeating the attaching, converting, and updating until the input data is exhausted.

This invention belongs to the field of antibiotic detection technology. It relates to a photoelectric active material with a P-N covalent bond-bridged heterojunction, its preparation method, and its applications. The RP / g-C3N4 P-N type chemically bonded heterojunction photochemical sensing material prepared by this method benefits from the unique band structure electric field response properties of g-C3N4. Under adjusted bias voltage conditions, this heterojunction material excites a dual-channel photocurrent response at both the anode and cathode, forming a self-detecting signal mechanism. The construction of P-N interface chemical bonds not only provides an efficient directional transport channel for photogenerated electrons but also enhances the structural stability of the system through stress buffering. In summary, the synergistic design of the engineering strategy based on P-N interface bonding bridging and the single-system bipolar signal detection mechanism overcomes the detection limitations of traditional single-channel PEC sensors, significantly improving signal reliability and anti-interference capabilities, and endowing the sensor with wider application adaptability and higher detection confidence.

Medical apparatus includes a probe with a basket assembly at its distal end, including a plurality of resilient spines with multiple electrodes arrayed along a length of each of the spines. Processing circuitry is configured to acquire a first bipolar electrical signal from the tissue between first and second electrodes at first and second locations along a first spine of the basket assembly, and to acquire a second bipolar electrical signal from the tissue between the first electrode and a third electrode in a third location on a second spine of the basket assembly, and to interpolate, based on the first and second bipolar electrical signals, a vectorial electrical property of the tissue along an axis that passes through the first location and between the second and third locations.

The application discloses a kind of electromyographic signal processing method, system and equipment for stroke patient rehabilitation training, belong to rehabilitation medical electronics technical field.Method includes: through three acquisition point serpentine grid flexible FPC electrode to obtain differential signal and reference signal, RF interference is filtered out by RFI filter;Signal is processed using three operational amplifier instrument amplifiers: first stage instrument amplifier suppresses common-mode interference and realizes primary filtering, second stage two-order active filter constitutes three-pole bandpass characteristic, and output signal amplitude is amplified to 2 / 3 of ADC range accurately;Direct current bias voltage generated by reference signal is superimposed with amplified signal, and bipolar signal is stabilized to the input range of adaptive ADC is converted by 24-bit ADC;It is transmitted to terminal by self-defined bluetooth protocol, and real-time generation electromyographic power spectral density analysis and rehabilitation quantization report.The technical scheme of the present application can effectively limit the signal band in the main energy range of electromyographic signal, filter out high-frequency noise and motion artifacts in addition to muscle signal.

A method includes receiving a bipolar signal sensed by a pair of electrodes at a location in a heart of a patient. One or more electrocardiogram (ECG) signals are received, sensed by body-surface electrodes attached to the patient. Two or more successive QRS complexes are identified in the bipolar signal. One or more activations are detected in the bipolar signal, which occur within a window-of-interest that begins at least a given time with respect to the identified QRS complexes. The detected activations are checked whether they are late potentials, by verifying whether (i) the activations do not coincide with a predefined event observed in the ECG signals, and (ii) the activations are repeatable in the successive QRS complexes. In response to deciding that at least one of the detected activations is a late potential, the latest of the at least one of the late potentials is visualized to a user.