92 results about "ECG Measurement" patented technology

A cardiac arrhythmia monitor provides electrodes to allow daily ECG measurements of a patient without cumbersome electrode connection to the patient. ECG data may be diagnosed by the monitor to indicate likelihood of an arrhythmia and an indication provided to the patient ECG data based on that indication may be forwarded to a physician or other healthcare professional for a review.

A plurality of ECG Superscore formulae, created from multiple parameter ECG measurements including those from advanced ECG techniques, can be optimized using additive multivariate statistical models or pattern recognition procedures, with the results compared against a large database of ECG measurements from individuals with known cardiac conditions and / or previous cardiac events. Superscore formulae utilize multiple ECG parameters and accompanying weighting coefficients and allow data obtained from any given patient to be used in calculating that patient's ECG Superscore results. ECG Superscores have retrospectively optimized accuracy for identifying and screening individuals for underlying heart disease and / or for determining the risk of future cardiac events. They thus have greater predictive value than that of any conventional or advanced ECG measurement alone or of any non-optimized combinations of conventional or advanced ECG measurements that have been used in the past. Ongoing optimization of ECG Superscore diagnostic and predictive accuracy may be realized through the iterative adjustment of Superscore formulae based on the incorporation of data from new patients into the database and / or from longitudinal follow-up of the disease and cardiac event status of existing patients.

A method and apparatus utilizing a piecewise stitching adaptive algorithm (PSAA) to filter signal artifacts, such as those induced by cardiopulmonary resuscitation (CPR) from sensed signals in real-time. PSAA is a method of estimating artifact component present in a first signal that is highly correlated with a second signal. The PSAA may utilize autocorrelation and cross-correlation calculations to determine signal sample windows in the first and second signals. The PSAA may estimate a signal artifact in a primary signal segment based on the determined correlations between the primary signal and an artifact signal. The PSAA may remove the estimated signal artifact from the primary signal. In the absence of an artifact signal, PSAA is able to estimate artifacts in the first signal utilizing filters. The PSAA may be implemented in Automated External Defibrillators, Monitor Defibrillators or other devices capable sensing highly correlated signals such as, for example, ECG and CPR signals.

An irrigated ablation catheter adapted for direct tissue contact has micro-elements that provide more accurate sensing of tissue, including thermal and electrical properties for temperature and impedance and intracardiac ECG measurements. A pressure sensing assembly adds the ability to measure the force at the tip of the catheter as well as to have the micro-elements for accurately sensing tissue parameters. A system uses signals from the micro-elements (impedance, temperature, and ECG signals) as well as the measure of force or pressure at the tip electrode order to provide the operator with a means to control lesion depth, size, transmurality and to ablate tissue until successful treatment of an arrhythmia is achieved.

An irrigated ablation catheter adapted for direct tissue contact has micro-elements that provide more accurate sensing of tissue, including thermal and electrical properties for temperature and impedance and intracardiac ECG measurements. A pressure sensing assembly adds the ability to measure the force at the tip of the catheter as well as to have the micro-elements for accurately sensing tissue parameters. A system uses signals from the micro-elements (impedance, temperature, and ECG signals) as well as the measure of force or pressure at the tip electrode order to provide the operator with a means to control lesion depth, size, transmurality and to ablate tissue until successful treatment of an arrhythmia is achieved.

The present invention provides a device and method for filtering impulsive noise and channel switching noise at ADC in an ECG device with multiplexed ESCs. The filtering is based on an implementation of Burst Sampling technique also a method for correcting errors in derived leads caused by time delays due to sequential sampling of different ECG signals is also provided. Real time digital FIR filters are used for removing other types of noise in ECG signals. The ECG device is compact and light weight and includes features of self calibration, clip detection and drawing of power from USB port of a PC, batteries or an external power source. The ECG monitoring device of the present invention measures real time ECG signals with automated data recording, data storage and retrieval, data transmission / transfer to an external system, along with parameter extraction for ECG analysis in an efficient manner for quick and reliable ECG measurement, in an extremely cost effective manner.

The present invention is directed to an improved method, system and product to provide wireless ECG patient monitoring. Although embodiments make specific reference to monitoring electrocardiogram signal with an adherent patch, the system methods, and device herein may be applicable to any application in which physiological monitoring is used. Unlike prior art methods and devices which require a wired solution to enable patient monitoring, this solution presents a safe, intuitive means ECG measurements without the use of wires. Also, the present invention also presents a reliable means for docking the interface while minimizing signal interference and user error. In addition, a novel means for transmitting and receiving a patient's ECG measurements is introduced which includes the use of an epidermal communication network (ECN). Although embodiments make specific reference to the use of the ECN for ECG measurements, the system methods, and protocol herein may be applicable to any wearable device and / or other smart device which is ECN enabled.

Apparatus and methods for electrocardiogram measurement. A first (504) and second (506) electrode are disposed on a first non-conductive pad (502) and independently represent any one of the V1, V2, V3, V4, V5, or V6 precordial positions. A third electrode (510) disposed on a second non-conductive pad (508) is a right arm (RA) electrode and is positioned on or close to the right arm of a subject. A fourth electrode is disposed on a third non-conductive pad and is a left arm (LA) electrode that is positioned on or close to the left arm of the subject. A fifth electrode is disposed on a fourth non-conductive pad and is a left leg (LL) electrode that is positioned on or close to the left leg of the subject. An electrocardiological measuring apparatus is in electrical communication with the first, second, third, fourth, and fifth electrodes. The electrocardiological measuring apparatus measures a unipolar lead or an augmented lead at a first time interval and a bipolar lead at a second time interval.

Cardiac monitoring and / or stimulation methods and systems provide monitoring, defibrillation and / or pacing therapies. A signal processor receives a plurality of composite signals associated with a plurality of sources, separates a signal using a source separation algorithm, and identifies a cardiac signal using a selected vector. The signal processor may iteratively separate signals from the plurality of composite signals until the cardiac signal is identified. The selected vector may be updated if desired or necessary. A method of signal separation involves detecting a plurality of composite signals at a plurality of locations, separating a signal using source separation, and selecting a vector that provides a cardiac signal. The separation may include a principal component analysis and / or an independent component analysis. Vectors may be selected and updated based on changes of position and / or orientation of implanted components and changes in patient parameters such as patient condition, cardiac signal-to-noise ratio, and disease progression.

Methods and systems are disclosed for analyzing three dimensional orthogonal ECG measurements to assess patient risk of a subsequent cardiac event based on evaluation of cardiac vector values in view of risk factors defined by the invention.

A leadless wireless ECG measurement system for measuring of bio-potential electrical activity of the heart in a patient's body includes at least one multi-contact bio-potential electrode assembly adapted for attachment to the patient's body. The electrode assembly is formed of an electronic patch layer and a disposable electrode layer. The disposable electrode layer has a plurality of contact points for engagement with the surface of the patient's body and is configured to measure short-lead ECG signals in response to electrical activity in the heart. A processing unit is provided and is configured to produce a transfer function which computes estimated long-lead ECG signals based on the measured short-lead ECG signals from the plurality of contact points.

The present invention provides a real-time interactive information system for measurement of 12-lead electrocardiogram waveforms and report editing, comprising a server providing cross-platform web page browsing for user to input commands or to review ECG reports and to edit or to measure information from patient further, a device for supporting internet interacting protocol which is a WEB SERVICE allowing for receiving commands issued by the server of cross-platform web page browsing and giving the server the feedback of processed ECG information by assistance from the database device, and a database device allowing for accessing patient's information to the internet interacting protocol.

The present invention discloses at least two electrodes disposed at the body of the ECG measuring device of the present invention. When a user normally uses the ECG measuring device, the two electrodes are just adhered to the hands and the face of the user. The ECG measuring method of the present invention is to measure a first ECG signal from the left hand to the left side of face of the user and a second ECG signal from the right hand to the right side of face of the user. Then a plurality of ECG features are obtained from the first ECG signal, the second ECG signal and the result, as related coefficients, of the interactive computing, as a method of plus and subtract, of the first ECG signal and the second ECG signal. Hence, a biometric authorization process is engaged according to the plurality of ECG features.

A method and an apparatus (108) for adapting a received EEG measurement signal to the characteristic range of an ECG measurement signal according to a number of predetermined factors. The suggested solution enables utilization of an ordinary ECG measuring instrument (110) and related infrastructure also in EEG measurements.

The invention discloses an integrated machine for measuring blood oxygen, blood pressure and electrocardiogram, and relates to the field of medical instruments. The all-in-one machine includes: a housing, on the outer surface of the housing, an electrocardiographic electrode, a luminous tube, a photosensitive sensor and a display device; The blood oxygen collection device connected with the photosensitive sensor, the blood pressure collection device, and the main processor connected with the ECG collection device, the blood oxygen collection device and the blood pressure collection device; the main processor is connected to the display device; the all-in-one machine also includes a setting Outside the housing, a cuff connected to the blood pressure collection device. The all-in-one machine integrates the three functions of blood oxygen, blood pressure and ECG measurement in one. While measuring blood pressure, the patient only needs to touch the hands or other parts of the blood oxygen, blood pressure and ECG measurement all-in-one machine naturally. On the ECG electrodes on the shell, blood oxygen measurement and ECG measurement can be completed at the same time.

The invention relates to a defibrillator detection method and system and a defibrillator. The method comprises steps that the triggering information for triggering detection of the defibrillator is acquired; based on the triggering information, power-on operation of the defibrillator is carried out, the first detection strategy is automatically performed, and the first detection strategy at leastcomprises performing one of an ECG measurement channel detection item, a discharging loop detection item and an impedance measurement channel detection item and recording the performing result of thedetection item.

A method and apparatus utilizing a piecewise stitching adaptive algorithm (PSAA) to filter signal artifacts, such as those induced by cardiopulmonary resuscitation (CPR) from sensed signals in real-time. PSAA is a method of estimating artifact component present in a first signal that is highly correlated with a second signal. The PSAA may utilize autocorrelation and cross-correlation calculations to determine signal sample windows in the first and second signals. The PSAA may estimate a signal artifact in a primary signal segment based on the determined correlations between the primary signal and an artifact signal. The PSAA may remove the estimated signal artifact from the primary signal. In the absence of an artifact signal, PSAA is able to estimate artifacts in the first signal utilizing filters. The PSAA may be implemented in Automated External Defibrillators, Monitor Defibrillators or other devices capable sensing highly correlated signals such as, for example, ECG and CPR signals.

A method for acquiring electrical signals from a living subject, including injecting, via an injection electrode attached to the subject, a known calibration signal to the subject and measuring respective levels of output signals generated at input electrodes attached to the subject in response to the calibration signal. The method further includes deriving respective weighting factors for the input electrodes in response to the respective levels, and applying the respective weighting factors to physiological signals acquired by the input electrodes, so as to generate respective corrected physiological signals.

An accessory device for a twelve-lead electrocardiography (ECG) apparatus includes a blanket. The ECG apparatus includes an ECG machine that has ten first electrical couplers, and ten electrodes each having a second electrical coupler. The blanket includes a sheet body configured to cover the body of a patient and formed with ten holes that are arranged according to a standard electrode placement for twelve-lead ECG measurement and that are configured to permit the second electrical couplers of the ten electrodes to extend therethrough, respectively.

An ECG measurement approach for any multi-touch screens comprises the following steps: 1) display ECG on the screen; 2) use two fingers to touch the screen and the two touch points have two vertically projected points on the actual ECG waves; 3) draw the horizontal and vertical baselines to show the x interval in milliseconds and y interval in microvolt; 4) move any one or both of the two fingers touch points on the screen, the projected points and the horizontal / vertical baselines updated synchronously, as well as the measurements; 5) measure the different part of the ECG waves using this approach, including the wave top points, wave beginning and ending points. This approach can be used as a measurement tool to any graphs of functions over time displayed on the multi-touch screen, like EEG.

The invention provides a portable electrocardiogram (ECG) machine with a motion monitoring function and an ECG output scheme for synchronous display of an ECG and exercise intensity, and belongs to the technical field of ECG detection. The ECG device at present does not have a motion monitoring module, and cannot synchronously monitor and record the motion state of a user during long-term and continuous ECG monitoring, so that while an ECG is output, the motion state of the user cannot be provided synchronously for reference for medical personnel or an analysis program, thereby limiting the practicability of long-term and continuous ECG monitoring. The portable ECG machine provided by the invention is provided with a motion monitoring module, and can synchronously record motion data of the user during ECG measurement, a system in local or cloud calculates the exercise intensity according to original motion data, the system can synchronously output the exercise intensity and the average exercise intensity data of the user in a chart, color or grayscale mode while outputting the ECG, and medical personnel or the analysis program can judge the heart health condition of the user by combining exercise loads.

The invention provides integrated wearable multi-physiological index acquisition equipment which comprises a wearable garment embedded with a blood pressure measurement module, an ECG measurement module, a blood oxygen measurement module, a body temperature measurement module, a control circuit board and a feed battery box, wherein the blood pressure measurement module is connected to the control circuit board through an air duct and a cable; the ECG measurement module, the blood oxygen measurement module and the body temperature measurement module are connected to the control circuit board through a wire cable; the feed battery box is electrically connected to the control circuit board so as to charge the control circuit board; the control circuit board can be used for controlling each measurement module, processing, classifying and calculating the data measured by each measurement module and transmitting the obtained results to external visual equipment; the wearable garment is provided with a switch electrically connected to the control circuit board to realize switching control; and the wearable garment has elasticity and can be tightly jointed with a human body. The equipment provided by the invention can acquire multiple physiological indexes and can realize accurate measurement only by putting on the garment.

The present invention provides a device and method for filtering impulsive noise and channel switching noise at ADC in an ECG device with multiplexed ESCs. The filtering is based on an implementation of Burst Sampling technique also a method for correcting errors in derived leads caused by time delays due to sequential sampling of different ECG signals is also provided. Real time digital FIR filters are used for removing other types of noise in ECG signals. The ECG device is compact and light weight and includes features of self calibration, clip detection and drawing of power from USB port of a PC, batteries or an external power source. The ECG monitoring device of the present invention measures real time ECG signals with automated data recording, data storage and retrieval, data transmission / transfer to an external system, along with parameter extraction for ECG analysis in an efficient manner for quick and reliable ECG measurement, in an extremely cost effective manner.

A method for generating an ECG measurement associated with a point on a patient's body such as one of the precordial points is disclosed for use with an apparatus that cannot make contact with the leg and the point simultaneously. The method includes simultaneously recording a hand signal and a leg signal during a first time period. The hand signal is also measured during a second time period together with a chest signal corresponding to one of the precordial points. A signal representing the leg signal in the second time period is then computed from the first time period data. A reference signal is then generated from the hand signal and computed leg signal during the second time period. The reference signal is then combined with the chest signal to provide the corresponding precordial signal.

A grounding arrangement in a system using the same connector for 5- and 12-lead connection in ECG-measurement. If 5-lead configuration is used, the connector elements of the 12-lead connection are used for grounding of lead wire shields through a current limiting circuit exhibiting non-linear voltage-current characteristics.

The present invention provides a real-time interactive information system for measurement of 12-lead electrocardiogram waveforms and report editing, comprising a server providing cross-platform web page browsing for user to input commands or to review ECG reports and to edit or to measure information from patient further, a device for supporting internet interacting protocol which is a WEB SERVICE allowing for receiving commands issued by the server of cross-platform web page browsing and giving the server the feedback of processed ECG information by assistance from the database device, and a database device allowing for accessing patient's information to the internet interacting protocol.

The present invention discloses wearable electrocardiographic measurement device which includes a first electrode and a second electrode, wherein the first electrode is mounted on a user's body via a wearable structure, and the second electrode is implemented to contact the user's upper limb, neck or shoulder, so as to achieve a loop for acquiring electrocardiographic signals.

The invention provides an ECG measurement-based heart rate earphone, a heart rate test method and a device, and relates to the technical field of earphones. The earphone structurally comprises an earphone body. The earphone body is provided with a left-ear electrode and a right-ear electrode. The earphone body is also provided with an acceleration sensor, a data processor and a communication module. The acceleration sensor is matched with the left-ear electrode and the right-ear electrode to collect the acceleration and the heart rate of a rider during riding. A corresponding table between a riding speed X, and the difference between a heart rate curve tested by three electrodes at the riding speed X, and a heart rate curve tested by two electrodes at the riding speed X, is established. After that, the data processor is placed into the corresponding table for query purpose. As a result, heart rate data can be tested by utilizing two electrodes. In combination with the actual riding speed tested by the acceleration sensor, heart rate data tested by utilizing three electrodes can be obtained through the inverse method. The ECG measurement-based heart rate earphone can utilize only two electrodes. Compare with existing heart rate earphone based on three electrodes, the above heart rate earphone is simple in structure and convenient to use. The heart rate test method is simple and easy to implement.

The invention belongs to the field of electrocardio measurement equipment, and particularly relates to a wire for an electrocardio electrode slice, the electrocardio electrode slice and an electrocardio monitoring device which are used for sensing body electric signals. The wire for the electrocardio electrode slice has certain bending performance and tensile performance and can meet the requirement that the wire deforms when a human body moves. Furthermore, the arrangement of nonlinear repetitive units in an electrocardio-electrode plate provides a space for the stretching of the wire; finally, the electrocardio monitoring device adopting the electrocardio electrode slice can make good contact with the human body, the human body cannot feel uncomfortable due to the electrode slice in themovement process, and the situation that the electrode slice is not smooth in transmission due to deformation of the human body is avoided.