Biometric identification methods and apparatuses (including devices and systems) for uniquely identifying one an individual based on wearable garments including a plurality of sensors, including but not limited to sensors having multiple sensing modalities (e.g., movement, respiratory movements, heart rate, ECG, EEG, etc.).

A method for processing electrocardiograph (ECG) data using a garment includes determining, by a processor, a current working lead from ECG leads formed in advance using flexible electrodes in the garment based on a current ECG monitor type, and receiving, by the processor through lead wires corresponding to the current working lead, ECG data collected by flexible electrodes corresponding to the current working lead. A wearable apparatus for processing ECG data includes at least two flexible electrodes, in which the at least two flexible electrodes are capable of forming different leads based on predetermined configurations, at least two lead wires, and an ECG data collector configured to receive ECG data collected by the at least two flexible electrodes, in which each of the at least two flexible electrodes connects to the ECG data collector via at least one of the at least two lead wires.

A method and apparatus or system are disclosed for a procedure with minimal or no fluoroscopy, for example an electrosurgical procedure, and which uses a three dimensional mapping system. The procedure typically involves electrical measurement of the electrode of a needle to determine its position. Some embodiments further include intracardiac echocardiography (ICE) for tracking devices. The apparatus includes a needle with a tip electrode, an electroanatomical mapping (EAM) system, and an electrical generator, wherein a switching device is used to restrictively electrically connect the needle to only one of the mapping system or generator at a given time.

A method for detecting a position of a signal source in a living body includes: arranging three electrodes on a surface of the living body and alternately connecting a first external resistance and a second external resistance in parallel between the electrodes and a ground potential; measuring first voltages V.sub.i (i=1, 2, 3) generated at the respective electrodes when the first external resistance is connected in parallel between the electrodes and the ground potential, and second voltages V.sub.i (i=1, 2, 3) generated at the respective electrodes when the second external resistance is connected in parallel between the electrodes and the ground potential; and calculating three ratios V.sub.i/V′.sub.i (i=1, 2, 3) from the first and second voltages V.sub.i and V′.sub.i, and detecting the position of the signal source in the living body based on the three ratios V.sub.i/V′.sub.i (i=1, 2, 3).

A lightweight, disposable and substantially radiolucent electrode or sensor assembly for that universally connects to separate, non-integrated electrodes or sensors for the monitoring of the physiological parameters of a live subject wherein the electrode assembly is comprised of one or more radiolucent electrical connectors for connecting the electrode assembly to the sensors. The present invention also discloses a method of positioning the electrode assembly on a patient whose physiological signs are being monitored such that access to the patient's chest is substantially unimpeded so as not to obstruct the electromagnetic imaging of the patient's chest, the application of defibrillation paddles or surgical procedures that require access to the chest area.

A physiological signal of a patient is sensed with sense electrodes symmetrically arranged relative to a stimulation electrode. In some examples, a member includes a plurality of relatively small electrodes that are configured to function as both sense and stimulation electrodes. One or more of the electrodes may be selected as stimulation electrodes and two or more different electrodes of the member may be selected as sense electrodes that are symmetrically arranged relative to the one or more selected stimulation electrodes. In some examples, a member includes a plurality of levels of segmented sense electrodes and a plurality of levels of stimulation electrodes. The levels of sense electrodes are arranged such that each level of stimulation electrodes is adjacent at least two levels of sense electrodes symmetrically arranged relative to the level of stimulation electrodes.

The present invention relates to electrocardiography and to electrode arrangements used in electrocardiographic monitoring devices, and is more particularly related to a pad or patch containing said electrodes which may be used to passively and non-invasively monitor electrical activity generated by a patient's heart from the surface of that patient's chest, and to a connector which allows for fast and simple connection between the pad containing said electrodes and the devices and equipment typically used to monitor and view electrocardiographic information.

A measurement system for acquiring biopotentials is provided, which comprises a sensor device and a processing device, which are electrically connected to cooperate during use. The measurement system may be capable of simultaneous measurement of biopotentials by the sensor device and wireless transmission of amplified biopotentials by the processing device, and may be provided with means for preventing the measurements from being disturbed by the transmissions. Also disclosed are (i) a sensor device for measuring a biopotential having at least one sensor with a measurement electrode for measuring the biopotential at a measurement portion of a body and (ii) a processing device for processing biopotentials that has at least one sensor input for receiving the amplified biopotentials measured by a sensor of the sensor device.

A patient monitoring device and method that determines and monitors at least one patient parameter is provided. A configuration processor generates configuration information in response to a first input signal and an adaptive notch filter receives a second input signal. The second input signal includes a signal of interest and an interference signal in a predetermined frequency range. The adaptive notch filter automatically estimates the interference signal within the second input signal based on a filter parameter and removes the estimated interference signal from the second input signal to generate a target signal. A step processor is electrically coupled between the configuration processor and the adaptive notch filter and sets a value of the filter parameter based on the configuration information, wherein the adaptive notch filter uses the filter parameter to reduce a ringing artifact on the target signal below a threshold level.

A system for performing an electrocardiogram (ECG) can include a handheld electrocardiograph device having a right arm electrode, a left arm electrode, and a left leg electrode, and can be configured to receive signals from the electrodes and to send data based on the electrode signals to a mobile electronic device. The mobile electronic device can be configured to process and analyze the receive information to provide ECG data, such as 6-lead ECG data. The mobile electronic device can analyze the ECG data to provide diagnostic information. The mobile electronic device can transfer the ECG data to a remote computing system, which can analyze the ECG data to provide diagnostic information.