125 results about "Ecg monitoring" patented technology

A handheld ultrasound instrument is disclosed having enhanced diagnostic modes including pulse/continuous wave Doppler, time-motion analysis, spectral analysis and tissue harmonic imaging. An external electrocardiograph (ECG) recording unit is also disclosed. The ECG unit is adaptable to be used with the handheld ultrasound instrument to provide for ECG monitoring while performing an ultrasound scan in B-mode, Doppler, color Doppler, M-mode, and CW/PW mode. The enhanced handheld ultrasound instrument further includes a security mechanism allowing any combination of the diagnostic modes to be enabled by the manufacturer, and later to enable or disable any one or group of the diagnostic modes. The invention also discloses a method for a manufacturer to maintain a database of handheld ultrasound instrument capabilities after the instruments enter the stream of commerce.

Techniques for determining whether one or more leads are not adequately connected to a patient, e.g., for ECG monitoring, are described. The techniques involve injection of an integrated signal (which includes a test signal) into one lead, and monitoring the driven lead and the response at the other leads, including the common mode and the difference between the other leads. These “lead-off” detection techniques may be provided by an external defibrillator that provides three-wire ECG monitoring. Techniques for determining a type of a cable coupled to a defibrillator are also described. The cable-type identification may allow a defibrillator to, for example, operate in either a three-wire ECG monitoring mode or a therapy mode, based on whether a three-wire ECG cable or a defibrillation cable is coupled to the defibrillator.

A method and system for wireless ECG monitoring is provided. An electrode connector, transmitter and receiver operate with existing electrodes and ECG monitors. The electrode connector includes connectors for attaching to disposable or reusable single electrodes. The transmitter transmits the signals from the electrodes to the receiver. The receiver passes the electrode signals to the ECG monitor for processing. ECG monitors used with an electrical conductor, for example wire connections to electrodes, are connected with the receiver, avoiding the purchase of a new monitor. Any legacy ECG monitor, including different ECG monitors, connects with the receiver using the ECG monitor's lead-wires. The ECG monitor operates as if directly connected to the electrodes without the problems discussed above associated with wires running from the ECG monitor to the patient.

A simplified device and method for continuous ECG monitoring incorporates electrodes in a pulse oximeter finger probe and/or in a blood pressure cuff. The electrodes in the pulse oximeter and blood pressure cuff generate a continuous ECG tracing without the use of disposable electrodes connected to multiple electrical wires in an ECG harness. In another embodiment, simplified ECG monitoring system can act as a secondary ECG input to a system that uses a primary ECG input as well.

An electrocardiography device and method that is able to obtain the electrocardiogram of a freely moving animal. The device and method utilizes at least two catheters to obtain the electrical signals from the heart of the animal being tested. The catheters are filled with an electrically-conductive, physiological solution and are used in combination with at least two test leads that are able to transfer the electrical signals from the animal to an ECG monitoring device. The device and method also allows for fluids to flow through the catheters to other devices such as a blood sampler controller and/or an infusion pump.

A self-prepping ECG electrode assembly is provided. The electrode assembly includes an electrode element, an electrode stud, an abrasive member, an electrolyte gel, a cover member and a securing member. The electrode element and electrode stud are adapted to be rotatable within the electrode assembly. The electrode assembly may be used with a drive tool. The electrode assembly may be placed on the skin of a patient. The skin of the patient may be prepped for an ECG by inserting the drive tool into a bore formed in the electrode stud and turning the drive tool to achieve an oscillating rotation. In this manner the abrasive pad preps the patient's skin for the ECG procedure.

Medical device and methods are provided for controlled drug delivery in a cardiac patient. The device includes an implantable drug delivery module comprising reservoirs containing a drug and a control means for selectively releasing an effective amount of drug from each reservoir; one or more electrodes or sensors for cardiac monitoring, stimulation, or both; and a microcontroller for controlling operational interaction of the drug delivery module and the cardiac electrode. The electrodes may comprise ECG monitoring, cardioversion, or cardiac pacing electrodes. A medical device also is provided for controlled delivery of drug to a patient having congestive heart failure, which includes an implantable drug delivery module comprising a natriuretic peptide and a release mechanism for selectively releasing a pharmaceutically effective amount of the natriuretic peptide into the patient; and a microcontroller for controlling the release mechanism, for example, in response to one or more monitored patient parameters.

A system to detect the presence or absence of T wave alternans is described based on statistical tests and periodicity transform. T wave and ST segment boundaries are detected in multi-lead ECG signals acquired from the regular clinical leads. Once the fiducial point and the above boundaries are delineated, computation of regular parameters like T wave amplitude, area under the T waves or segments of T wave, ST segment slope and/or the curvature of T wave are performed. Each parameter forms a rolling array of values with each successive beat. The array of values, or the time series, is used to make the decision about the T wave alternans. Two different methods are employed based on periodicity transforms and statistical tests. A set of numerical values (e.g. norm of the projection on to p-2 space, sums of adjacent terms after the trend removal, t-value, and number of deviations from alternans pattern) are all computed and compared to threshold values. Threshold values are computed from past information and experience with clinical databases and simulations. Final system comprises a software module, which can be part of the existing ECG monitoring programs as well as external defibrillator modules, apart from being stand-alone algorithms.

Methods and systems for patient participatory care and monitoring are provided for applications including respiratory care, ECG monitoring, capnography, infusion pump alarm prevention/management, pressure sore prevention, incentive spirometry, consciousness monitoring during sedation, pain management and other care and monitoring modalities. A patient in-the-loop system includes an input interface for receiving data acquired from a monitoring, controlling or sensing device, a storage device for storing the data at a first location, and a processor for analyzing artifacts in the data and determining whether the patient provided a deliberate action with respect to the device as a response to a prompt or query. The processor can further initiate a variety of prompts and/or output queries stored in the storage device at a second location to the patient. The data derived from these patient-in-the-loop techniques are formatted to be received and interpreted by electronic medical record and electronic record keeping systems.

A wireless, battery-powered electrocardiograph (ECG) monitoring system, along with a method of use for detecting and analyzing patient's cardiovascular activity and interactively transmitting the data to a wireless computing device via telemetry. The wireless computing device can include but is not limited to a mobile phone, Tablet-PC or a laptop computer. ECG monitor contains a processor that continuously processes received ECG signals, stores the signals in memory and performs a series of analysis on the recorded data using pre-stored software algorithms. When an abnormality is detected, a wireless transceiver transmits the processed ECG data to a wireless computing device for viewing and further analysis, by displaying the received ECG data for doctor's viewing, sending the data to a web-based server computer for remote access, performing additional advanced analysis on the data and downloading new algorithms and instructions into the ECG monitoring device via telemetry.

An elastic garment provides an easy, quick, user-friendly way of positioning and fixing ECG electrodes. The elastic textile can offset the impact of body shape on the position of ECG electrodes. The elasticity ensures good electrode abutment and prevent electrode dislocation. The garment has labels indicating the significant bony landmarks, which help user wear the garment correctly thus ensuring the position of the electrodes. Optional features include: labels to indicate the position of electrodes; embedded wires, electrodes and connectors to external ECG device. The garment makes it possible for non-professionals to perform ECG examination including the standard 12-lead ECG. It also minimizes electrode dislocation and uncomfortable feelings of wearing ECG device, especially for those under long-term ECG monitoring. It can also help avoid the inconvenient procedure of undressing a patient during ECG examination.

The invention discloses a three-lead ECG (electrocardiogram) monitoring system with an electrode connection distinguishing function. The system comprises an ECG monitor and an intelligent terminal in wireless communication connection with the ECG monitor, wherein the intelligent terminal contains a processor and a Bluetooth communication module connected with the processor; the processor comprises a signal acquisition module, a linear fitting module, an ECG reconstruction module, a correlation operation module, a neutral network training module and a distinguishing module. The three-lead ECG monitoring system with the electrode connection distinguishing function converts ECG signals before learning by the aid of a linear regression model and a correlation coefficient method so as to accurately establish a distinguishing model by use of an artificial neutral network learning algorithm and a gradient descent optimization mode and realizes the function of distinguishing wrong connection of ECG electrodes through reduction of the system model, so that the distinguishing efficiency and accuracy are improved greatly.

A system for providing a standard electrocardiogram (ECG) signal for a human body using contactless ECG sensors for outputting to exiting medical equipment or for storage or viewing on a remote device. The system comprises a digital processing module (DPM) adapted to connect to an array of contactless ECG sensors provided in a fabric or the like. A selection mechanism is embedded into the DPM which allows the DPM to identify body parts using the ECG signals of the different ECG sensors and select for each body part the best sensor lead. The DPM may then produce the standard ECG signal using the selected ECG signals for the different body parts detected. The system is adapted to continuously re-examine the selection to ensure that the best leads are selected for a given body part following a movement of the body part, thereby, allowing for continuous and un-interrupted ECG monitoring of the patient.

A medical device, such as an electrocardiogram (ECG) monitoring apparatus, provides galvanic isolation between low voltage electronics and a plurality of externally exposed ECG (patient contact) lead wires and electrodes. The ECG lead wires and/or electrodes can potentially make unwanted contact with sources of high voltage, such as from defibrillation pulses generated by defibrillation devices. The defibrillation pulses can cause damage to the low voltage electronics within the ECG monitoring apparatus. Electrical resistance is provided outside of the ECG lead wires and electrodes and separate from the low voltage electronics to protect against misdirection of a defibrillation pulse towards the low voltage electronics, and to protect against misdirection of a defibrillation pulse away from the patient for which the benefit of the defibrillation pulse is intended.

The invention relates to a portable type wireless ECG monitoring device of the medical treatment wardship technical field. In the invention, an electrocardiosignal preamplification module uses negative feedback differential amplifier circuits to carry out one-stage size-expansion on gathered electrocardiosignals; after being enlarged, the electrocardiosignals are transmitted to a microprocessor which comprises an operational amplifier, a flash module, an AD converter, an MAC, a heart rate identification module and a peripheral interface; a wireless transceiving module transmits exceptional electrocardiosignals to a USB transceiving module by using Zigbee protocol in a wireless way; a USB transceiving module receives the exceptional electrocardiosignals transmitted by the wireless transceiving module; and the USB transceiving module is connected with a peripheral device. The portable type wireless ECG monitoring device is characterized by small volume, lower power consumption and wireless transceiving.

A standard 3-lead electrcardiographic (ECG) monitoring system which is based on a wireless sensor network, comprising a management center, a patient monitor node, a sensor network node which is composed of a patient monitoring node and a collective node, and a digital processing terminal, wherein, the patient monitoring node communicates with the collective node; all the collective nodes communicate with each other; the collective node, the digital processing terminal and the management center communicate with each other. The patient monitoring node comprises a sensor input unit, a data processing unit, a data transmission unit and a power unit which are connected with each other in sequence; the data processing unit, the data transmission unit and the power unit are connected with the collective node. The invention combines the wireless sensor network and the ECG monitoring digitization, the disease rate can be predicted effectively by only carrying one monitoring patient node, which provides an important objective base for clinical analysis. The system achieves the combination of the standard 3-lead synchronous ECG, and variability of cardiac rate, etc., and can display a complete figure on which an identical cardiac cycle is on different orientations and different leads.

In one type of ECG monitoring and analysis system, electrodes are placed on the human body to detect the electrical activity of the heart, and the electrodes are arranged in such a way that FrankX, Y, and Z leads can be formed according to the detected electrical activity. An ECG signal conversion network for providing FrankX, Y, Z leads, including an input terminal, which only performs a set of input signals corresponding to the induced chest leads dV1, dV2, dV3, dV4, dV5 and dV6 In response, a memory for storing transformation matrix coefficients and an output terminal for providing an output signal corresponding to the application of said transformation matrix coefficients to said input signal, said output signal corresponding to said Frank X, Y and Z derivatives couplet. The present invention reduces the bandwidth requirements of the ECG signal communication network and reduces the complexity of the processing required to construct the Frank leads.

The invention discloses a wearable intelligent monitoring device, comprising a wearable carrier such as an ear hanger, glasses, glue sticker, bandage, etc. and a conversion module arranged in the wearable carrier. The wearable intelligent monitoring device comprises a wearable carrier such as an ear hanger, glasses, glue sticker, bandage, etc. Module one includes control chip, Bluetooth chip, battery, two-color LED indicator, nine-axis and vibration sensor, vibration motor, buzzer. Module 2 includes control chip, Bluetooth chip, polymer lithium battery, two-color LED indicator, nine-axis and vibration sensor, ECG monitoring module. Module 3 includes a control chip, a Bluetooth chip, a polymer lithium battery, a two-color LED indicator, an EMG & MMG monitoring module, a vibration and audioacquisition chip, and a directional sound collector. The device has the advantages of simple structure, comprehensive function and strong universality, and ensures that the user maintains a healthy posture under various conditions and has monitored the disease condition of the patient through the accurate detection of the changes of the curvature degree of the head, neck and lumbar vertebrae, thesound changes of the joint wear and tear, and the related nerve and cardiopulmonary function.