Aspect Medical Systems, Inc.

John R Shambroom

Nassib G Chamoun

Philip H Devlin

Rafael M Cordero

Charles Fendrock

Charles P Smith

Terrie L McDaniel

Edwin B Merrick

Todd A Marcus

Mark E Bruckner

Hongmei Cai

Joao Melo

A system for measuring bioelectric impedance in real time, in the presence of interference and noise is disclosed. A small electric current is injected into a biopotential electrode system, and then the measurement is tested for contamination by electrical interference or other noise sources.

System and method for measuring bioelectric impedance in the presence of interference

A system and method of identifying and removing artifact from radio frequency noise from biopotentials identifies epochs contaminated with radio frequency noise. Contaminated epochs are then replaced with recent uncontaminated epochs stored in a buffer, depending on the current level of artifact and the availability of suitable data. Discontinuities arising at the beginning of the replaced epochs are smoothed by means of a windowing function.

System and method for the detection and removal of radio frequency noise artifact from biopotential signals

A method for measuring bioelectric impedance in real time, in the presence of interference and noise is disclosed. A small electric current is injected into a biopotential electrode system, and then the measurement is tested for contamination by electrical interference or other noise sources.

System and method for measuring the validity of a bioelectric impedance measurement in the presence of interference

An array of electrodes is constructed to allow the user to easily adjust to the correct size of the patient's head. The array is self-adhesive, pre-gelled and disposable. The array fits easily over the temple and forehead areas where EEG signals can be acquired by specially designed monitors for purposes of monitoring a number of bodily phenomena, including but not limited to, depth of anesthesia, and/or ischemia, and burst suppression. The array is connected to the monitor via a tab connector that is integral to the disposable device. The tab connector is insertible into a reusable connector that is part of a monitoring system.

Electrode array system for measuring electrophysiological signals

A sensor system which includes a biopotential signal monitor, a smart sensor and the accompanying hardware and software interface which authenticates the source and validity of the smart sensor and also verifies that the smart sensor meets various criteria for use.

Smart electrophysiological sensor system with automatic authentication and validation and an interface for a smart electrophysiological sensor system

Disclosed is a physiological electrical signal connector system which one connector connected to an electrode set and another connector connected to a digital signal convertor which leads to a patient monitor. Each type of electrode set has a specific code identified with it and when connected to the digital signal convertor, the connector code is recognized by the digital signal convertor. The connector code is then relayed to the monitor which will self-configure based on the identified code.

Electrode connector system

A monitor for receiving electrical signals from a living body includes a power supply which is located in a housing for the monitor and a separate acquisition module which acquires signals through one or more electrodes connected to a body. Both data and power are transmitted over the same means between the power supply and the acquisition modules.

Monitor and method for acquiring and processing electrical signals

A monitor which receives electrical signals from a human body includes a portable data acquisition module and a substantially stationary processing module. The EEG signals are acquired and converted to an oversampled stream of digital signals by a sigma-delta modulator located in the data acquisition module. The signals are then filtered by a decimation filter located in the processing module. Additional means are also provided to monitor the electrode leads to detect when the leads become unplugged. The monitor provides all power to the data acquisition module over a single twisted line which transmits data as well.

Growing community of inventors

Arlington, MA, United States of America

John R Shambroom