Abstract:
PROBLEM TO BE SOLVED: To provide a device for estimating an actual electrocardiogram signal of a patient while carrying out compression treatment of a thorax of the patient.SOLUTION: A system for determining compression depth that carries out cardio-pulmonary resuscitation treatment to a patient includes: a compression monitor for operating in accordance with a thorax of the patient to generate an acceleration signal; a reference sensor for operating in accordance with a plain surface that supports the patient to generate a reference signal; and a processor that is configured to determine the compression depth by the combination of the acceleration signal and the reference signal, so that the compression depth is determined by calculating the movement of the plain.
Abstract:
PROBLEM TO BE SOLVED: To provide, in one embodiment, a device for estimating an actual electrocardiogram (ECG) signal of a patient while performing chest compressions.SOLUTION: The device for estimating an actual ECG signal includes: an instrument for performing chest compressions on a patient; a detector for sensing the ECG signal of the patient, the means for sensing the ECG signal capable of producing a measured ECG signal corresponding to the measured value of the ECG signal of the patient, wherein the ECG signal comprises an actual component and a noise component; a compression sensor operably connected to the means for performing chest compressions, the compression sensor capable of producing a compression signal corresponding to the presence of a chest compression; and a processor operably connected to the compression sensor and to the means for sensing the ECG signal, the processor capable of producing an estimated actual ECG signal corresponding to the estimated actual ECG signal of the patient.
Abstract:
PROBLEM TO BE SOLVED: To provide a device for determining the depth of chest compression. SOLUTION: The device includes: an accelerometer capable of producing an acceleration signal of chest compressions; a processor for producing an estimated actual acceleration signal from the acceleration signal; and a means for integrating the acceleration signal, the means for integrating capable of producing an estimated actual depth signal corresponding to the estimated actual depth of chest compressions. The processor includes: a system identifier capable of producing an estimated noise signal corresponding to the noise component of the acceleration signal, wherein the system identifier produces the estimated noise signal by processing the measured acceleration and at least one error source reference; and a means for combining signals capable of combining the acceleration signal and the estimated noise signal to produce the estimated actual acceleration signal. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a device for estimating an actual electrocardiogram signal while carrying out compression treatment of a patient's thorax. SOLUTION: The device for estimating the actual electrocardiogram signal has: a means to carry out the compression treatment of the patient's thorax; a means to detect the patient's electrocardiogram signal, which is a means capable of generating a measured electrocardiogram signal equivalent to the measurement value of the patient's electrocardiogram signal including an actual component and a noise component; a compression sensor operably connected to the compression treatment execution means and capable of generating a compression signal showing the execution of the thoracic compression; and a processor operably connected to the compression sensor and the electrocardiogram signal detection means and capable of generating the estimated actual electrocardiogram signal equivalent to the estimated actual electrocardiogram signal. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
METHOD OF DETERMINING DEPTH OF COMPRESSIONS DURING CARDIO-PULMONARY RESUSCITATION A system for the determination of compression depth during the administration of cardiopulmonary resuscitation (CPR) on a patient is provided. The system comprises a compression monitor (2) adapted to move in accordance with the chest of the patient (1), the compression monitor (2) is operable to provide an acceleration signal. The system further comprises a reference sensor (119) adapted to move in accordance with a surface (80) supporting the patient (1), the reference sensor (119) operable to provide a reference signal, and a processor configured to combine the acceleration signal and the reference signal from the reference sensor (119) to determine the compression depth. The determined compression depth takes into account motion of the surface (80).
Abstract:
A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compression.
Abstract:
A method of processing a raw acceleration signal, measured by an accelerometer-based compression monitor, to produce an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal is filtered during integration and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compression.
Abstract:
METHOD OF DETERMINING DEPTH OF COMPRESSIONS DURING CARDIO-PULMONARY RESUSCITATION A system for the determination of compression depth during the administration of cardiopulmonary resuscitation (CPR) on a patient is provided. The system comprises a compression monitor (2) adapted to move in accordance with the chest of the patient (1), the compression monitor (2) is operable to provide an acceleration signal. The system further comprises a reference sensor (119) adapted to move in accordance with a surface (80) supporting the patient (1), the reference sensor (119) operable to provide a reference signal, and a processor configured to combine the acceleration signal and the reference signal from the reference sensor (119) to determine the compression depth. The determined compression depth takes into account motion of the surface (80).
Abstract:
METHOD OF DETERMINING DEPTH OF COMPRESSIONS DURING CARDIO PULMONARY RESUSCITATION A method of processing a raw acceleration signal (34), measured by an accelerometer-based compression monitor, produces an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal (34) is filtered during integration (35, 36, 37, 38) and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor, 63) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.
Abstract:
METHOD OF DETERMINING DEPTH OF COMPRESSIONS DURING CARDIO PULMONARY RESUSCITATION A method of processing a raw acceleration signal (34), measured by an 5 accelerometer-based compression monitor, produces an accurate and precise estimated actual depth of chest compressions. The raw acceleration signal (34) is filtered during integration (35, 36, 37, 38) and then a moving average of past starting points estimates the actual current starting point. An estimated actual peak of the compression is then determined in a similar fashion. The estimated actual starting point is subtracted from the 1o estimated actual peak to calculate the estimated actual depth of chest compressions. In addition, one or more reference sensors (such as an ECG noise sensor, 63) may be used to help establish the starting points of compressions. The reference sensors may be used, either alone or in combination with other signal processing techniques, to enhance the accuracy and precision of the estimated actual depth of compressions.