Apparatus and method for cordless recording and telecommunication transmission of three special ECG leads and their processing
First Claim
1. A handheld device adapted for placement against the body of a patient in a measurement position to thereby extract special ECG signals for combining with a predetermined calibration matrix in order to construct an ECG, the handheld device comprising:
- at least three integrated active electrodes, including first and second integrated active electrodes adapted to electrically contact the chest of the patient in the measurement position, and a third integrated active electrode adapted to electrically contact the left hand of the patient in the measurement position; and
a integrated fourth electrode adapted to electrically contact the right hand of the patient in the measurement positionswherein said integrated active electrodes and integrated fourth electrode are disposed in the device such that, when in the measurement position, said contact with the chest of the patient by the first and second integrated active electrodes, with the left hand of the patient by the third integrated active electrode, and with the right hand of the patient by the integrated fourth electrode, is operative to achieve maximum recording point vector orthogonality, to thereby optimize ECG reconstruction.
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Accused Products
Abstract
The invention is related to a device and method for cordless recording, telecommunication transmission, and processing of three special ECG leads by the means of the mobile device (1) and diagnostic-calibration center (2) where the reconstruction of standard ECG leads is performed. Reconstruction parameters are determined previously by calibration for each patient. In urgent situation, a patient (3) performs recording of three special ECG leads with the mobile device (1), and sends the memorized data to the diagnostic-calibration device (2) via a cellular telephone (4). The patient can trace the process of recording and sending the data with the help of sound and light indicators. Diagnostic-calibration center (2) is equipped with a PC computer (6) connected to a receiving cellular telephone (7) and calibration ECG device (8) with 14 electrodes. Ten electrodes are grouped into a standard 12-channel ECG cable, while the remaining four are used for recording of three special ECG leads and are grouped into a separate box (9) with integrated electrodes arranged identically as the integrated electrodes on the mobile device (1).
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Citations
33 Claims
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1. A handheld device adapted for placement against the body of a patient in a measurement position to thereby extract special ECG signals for combining with a predetermined calibration matrix in order to construct an ECG, the handheld device comprising:
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at least three integrated active electrodes, including first and second integrated active electrodes adapted to electrically contact the chest of the patient in the measurement position, and a third integrated active electrode adapted to electrically contact the left hand of the patient in the measurement position; and a integrated fourth electrode adapted to electrically contact the right hand of the patient in the measurement positions wherein said integrated active electrodes and integrated fourth electrode are disposed in the device such that, when in the measurement position, said contact with the chest of the patient by the first and second integrated active electrodes, with the left hand of the patient by the third integrated active electrode, and with the right hand of the patient by the integrated fourth electrode, is operative to achieve maximum recording point vector orthogonality, to thereby optimize ECG reconstruction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A diagnostic system for constructing an ECG of a patient, the system comprising:
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a field unit including a handheld device adapted for placement against the body of the patient in a measurement position to thereby extract special ECG signals for combining with a predetermined calibration matrix, the handheld device comprising; at least three integrated active electrodes, including first and second integrated active electrodes adapted to electrically contact the chest of the patient in the measurement position, and a third integrated active electrode adapted to electrically contact the left hand of the patient in the measurement position; and an integrated fourth electrode adapted to electrically contact the right hand of the patient in the measurement position wherein said integrated active electrodes and integrated fourth electrode are disposed in the device such that, when in the measurement position, said contact with the chest of the patient by the first and second integrated active electrodes, with the left hand of the patient by the third integrated active electrode, and with the right hand of the patient by the integrated fourth electrode, is operative to achieve maximum recording point vector orthogonality, to thereby optimize ECG reconstruction; and a diagnostic center in communication with the field unit, the diagnostic center configured to receive signals derived from the three integrated active electrodes and construct therefrom, and from said predetermined calibration matrix, an ECG of the patient. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for constructing a patient ECG, the method comprising:
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placing against the body of the patient in a measurement position a handheld device having first, second and third integrated active electrodes and an integrated fourth electrode, wherein said integrated active electrodes and fourth integrated electrodes are disposed in the device such that, when in the measurement position, contact is with the chest of the patient by the first and second integrated active electrodes, with the left hand of the patient by the third integrated active electrode, and with the right hand of the patient by the integrated fourth electrode, and is operative to achieve maximum recording point vector orthogonality, to thereby optimize ECG reconstruction; extracting from the first and second integrated active electrodes, respectively, first and second electrical signals derived from the chest of the patient; extracting from the third integrated active electrode a third electrical signal derived from the left hand of the patient; extracting from the integrated fourth electrode a reference signal derived from the right hand of the patient; communicating signals corresponding to the extracted signals to a diagnostic center; and combining, at the diagnostic center, the communicated signals with a predetermined calibration matrix to construct, an ECG of the patient. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification