Abstract: A non-intrusive and quantitative method and apparatus for diagnosing sleep apnea and detecting apnea events by monitoring during sleep abdominal effort and thoracic effort, determining the phase of each effort, determining the difference in phase between each type of effort, and then determining the rate of phase angle change and standard deviation over time. Also provided may be treatment when apnea events are detected to trigger therapy apparatus such as airway positive pressure apparatus.
Type:
Grant
Filed:
January 22, 2003
Date of Patent:
May 17, 2005
Assignee:
Medcare Flaga hf
Inventors:
Anand Kumar, Winni Hofman, William Burzelewski
Abstract: The present invention is directed to a disposable sensor for monitoring and measuring the respiration of a patient. The disposable sensor includes at least one flexible ribbon adapted to encircle a portion (e.g., the chest or abdomen) of the patient. Each flexible ribbon includes a conductor strip secured thereto. The conductor strip extends in a zig-zag or other predetermined pattern. The disposable sensor also includes a connector assembly for connecting and securing a first free end of the ribbon to a second free end of the ribbon. The connector assembly is operatively coupled to the conductor, and is further adapted to be connected to a monitoring device.
Abstract: An electrocardiographic measurement system, method and device uses a device such as an inclinometer, which measures the body position in three orthogonal planes x, y and z in order to correct the calculated vector for changes in ECG parameters, especially S-T segment level during ischemic attacks. Recordings are made with a sixteen channel recorder for twenty four hours and so it is necessary to have a measure of the posture of the subject to interpret the ECG. An inclinometer, which measures gravitational acceleration in all planes to the nearest degree is used, giving three traces for the three planes x, y and z. By initial calibration of the ECG changes due to body position or continuous running average the calculated vector of the ECG can be corrected by standard geometric methods.