Method and apparatus for generating electrocardiogram precordial leads using a precordial central terminal
First Claim
1. A device for acquiring and processing electrical signals produced by a patient'"'"'s heart, the device comprising:
- a plurality of electrodes for attachment to the patient'"'"'s upper torso, wherein the plurality of electrodes does not include electrodes for attachment to the patient'"'"'s limbs;
an acquisition module coupled to the plurality of electrodes for acquiring electrical signals from the plurality of electrodes; and
a signal processor coupled to the acquisition module for generating a plurality of electrocardiogram precordial leads from the acquired signals.
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Accused Products
Abstract
A method and apparatus for generating a plurality of ECG precordial leads using a precordial central terminal derived from a plurality of electrodes for attachment around the circumference of a patient'"'"'s upper torso. The apparatus is a device including a plurality of electrodes, an acquisition module including a signal processor coupled to the plurality of electrodes for acquiring electrical signals from the electrodes and for generating a plurality of ECG precordial leads from the acquired electrical signals. According to the method of the invention, an approximation of the electrical potential near the center of the patient'"'"'s heart (i.e., a precordial central terminal) is generated based on the signals acquired from the plurality of electrodes. The precordial central terminal signal is subtracted from the signal acquired from each electrode attached to the patient'"'"'s chest in order to generate the precordial leads.
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Citations
72 Claims
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1. A device for acquiring and processing electrical signals produced by a patient'"'"'s heart, the device comprising:
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a plurality of electrodes for attachment to the patient'"'"'s upper torso, wherein the plurality of electrodes does not include electrodes for attachment to the patient'"'"'s limbs;
an acquisition module coupled to the plurality of electrodes for acquiring electrical signals from the plurality of electrodes; and
a signal processor coupled to the acquisition module for generating a plurality of electrocardiogram precordial leads from the acquired signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electrocardiogram device for acquiring and processing electrical signals produced by a patient'"'"'s heart, the device comprising:
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a belt adapted to be attached to the patient'"'"'s upper torso;
a plurality of electrodes coupled to the belt, wherein the plurality of electrodes does not include electrodes for attachment to the patient'"'"'s limbs;
an acquisition module coupled to the belt and the plurality of electrodes for acquiring electrical signals from the plurality of electrodes;
a signal processor coupled to the acquisition module for generating a plurality of electrocardiogram precordial leads from the acquired electrical signals;
a transmitter coupled to the acquisition module for transmitting the plurality of electrocardiogram precordial leads; and
a receiver wirelessly coupled to the transmitter for receiving the acquired electrical signals. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An acquisition device for attachment to a patient and for acquiring electrical signals produced by the patient'"'"'s heart, the device comprising:
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a belt adapted to be attached to the patient'"'"'s upper torso;
a plurality of electrodes coupled to the belt, the plurality of electrodes including at least one electrode positioned within the belt so that when the belt is attached to the patient the electrode contacts the patient'"'"'s chest, and at least one electrode positioned within the belt so that when the belt is attached to the patient the electrode contacts the patient'"'"'s back, wherein the plurality of electrodes does not include electrodes for attachment to the patient'"'"'s limbs;
an acquisition module including a signal processor coupled to the belt and the plurality of electrodes for acquiring electrical signals from the plurality of electrodes and for generating a plurality of electrocardiogram precordial leads from the acquired signals; and
a transmitter coupled to the acquisition module for transmitting the plurality of electrocardiogram precordial leads to a remote location. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of acquiring and processing electrical signals produced by a patient'"'"'s heart, the method comprising the acts of:
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positioning a plurality of electrodes on the patient'"'"'s upper torso, without positioning electrodes on the patient'"'"'s limbs;
acquiring electrical signals from the plurality of electrodes; and
generating a plurality of electrocardiogram precordial leads from the acquired electrical signals. - View Dependent Claims (46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. A method of acquiring and processing electrical signals produced by a patient'"'"'s heart, the method comprising the acts of:
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positioning a plurality of electrodes on the patient'"'"'s upper torso, the plurality of electrodes including at least one electrode positionable on the patient'"'"'s chest and at least one electrode positionable on the patient'"'"'s back, wherein the plurality of electrodes does not include electrodes for positioning on the patient'"'"'s limbs;
acquiring electrical signals from the plurality of electrodes;
generating an approximation of an electrical potential near the center of the patient'"'"'s heart by determining a weighted combination of a plurality of the acquired electrical signals; and
generating a plurality of electrocardiogram precordial leads from the acquired electrical signals by subtracting the approximation of the electrical potential near the center of the patient'"'"'s heart from each one of the signals acquired from the at least one electrode on the patient'"'"'s chest. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72)
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Specification