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US 11,529,085 B1Granted
Apparatus for generating an electrocardiogram
AssigneeHeartBeam, Inc.
InventorBranislav Vajdic
Life of this patent
Estimating the term…
Abstract
Wrist-wearable apparatuses that may be removed and used as a chest-applied cardiac device may include two chest electrodes on an inner surface of a strap (or strap regions), as well as two finger or more finger electrodes on the opposite side of the apparatus. The apparatus may be removed from the wrist and placed on a chest of a patient such that two electrodes are spaced at least five centimeters apart and in contact with the chest and held in place with two or more fingers to capture orthogonal cardiac signals that may be synthesized into a conventional 12-lead cardiac signal.
Claims25
A wrist-worn apparatus configured to measure ECG signals, apparatus comprising:
- a first wrist band portion including a first electrode on an inner side of the first wrist band portion and a third electrode on an opposite side of the first wrist band portion;
- a second wrist band portion including a second electrode on an inner side of the second wrist band portion and a fourth electrode on an opposite side of the second wrist band portion, wherein the first wrist band portion and second wrist band portion are configured to be coupled together to form a continuous loop worn on a subject's wrist, and are further configured to be uncoupled, spread apart, and positioned on the subject's chest so that the first electrode and the second electrode are in contact with the subject's chest and separated by 6 cm or more to measure bioelectric signals from the subject's chest, wherein the third electrode is configured to measure bioelectric signals from the subject's right hand and the fourth electrode is configured to measure bioelectric signals from the subject's left hand;
- and
- a processor configured to process three orthogonal cardiac leads derived from the first, second, third and fourth electrodes,
- wherein the apparatus is configured to operate in a first mode to be worn on the subject's wrist when the first wrist band portion is coupled to the second wrist band portion and is further configured to operate in a second mode to capture the bioelectric signals when the first wrist band portion is uncoupled from the second wrist band portion and the wrist band portions are placed on the subject's chest.
2 more elements
A wrist-worn apparatus configured to measure ECG signals, apparatus comprising:
- a first wrist band portion including a first electrode on an inner side of the first wrist band portion and a third electrode on an opposite side of the first wrist band portion;
- a second wrist band portion including a second electrode on an inner side of the second wrist band portion and a fourth electrode on an opposite side of the second wrist band portion, wherein the first wrist band portion and second wrist band portion are configured to be coupled together to form a continuous loop worn on a subject's wrist, and are further configured to be uncoupled, spread apart and positioned on the subject's chest so that the first electrode and the second electrode are in contract with the subject's chest and separated by between 6 and 14 cm to measure bioelectric signals from the subject's chest, wherein the third electrode is configured to measure bioelectric signals from the subject's right hand and the fourth electrode is configured to measure bioelectric signals from the subject's left hand;
- a housing coupled between the first wrist band portion and the second wrist band portion comprising a display face;
- a resistive network with the housing and forming a central point in a sagittal plane through the subject's chest passing between the third and fourth electrodes when the first wrist band portion and the second wrist band portion are held against the subject's chest, wherein three orthogonal cardiac leads are formed from the first, second, third and fourth electrodes and the central point;
- and
- a processor configured to process the three orthogonal cardiac leads derived from the first, second, third and fourth electrodes and to synthesize conventional 12-lead electrocardiogram (ECG) information from the three orthogonal cardiac leads,
- wherein the apparatus is configured to operate in a first mode to be worn on the subject's wrist when the first wrist band portion is coupled to the second wrist band portion and is further configured to operate in a second mode to capture the bioelectric signals when the first wrist band portion is uncoupled from the second wrist band portion and the wrist band portions are placed on the subject's chest.
4 more elements
A method of detecting a cardiac signal from a subject, the method comprising:
- wearing an apparatus in a first mode on the subject's wrist when a first wrist band portion of the apparatus is coupled to a second wrist band portion of the apparatus;
- removing the apparatus from the subject's wrist;
- operating the apparatus in a second mode when the first wrist band portion is uncoupled from the second wrist band portion, the operation comprising:
- placing the first wrist band portion and the second wrist band portion of the apparatus against the subject's chest so that a first electrode on an inner surface of the first wrist band portion is in contact with the subject's chest and a second electrode on an inner surface of the second wrist band portion against is in contact with the subject's chest, wherein the first electrode is separated from the second electrode by 6 cm or more;
- placing a finger of a first hand against a third electrode on an outer surface of the apparatus and a finger of a second hand against a fourth electrode of the apparatus;
- measuring electrocardiogram (ECG) information from the first, second, third and fourth electrodes;
- processing the ECG information;
- and
- outputting the processed ECG information as an ECG signal.
6 more elements
Dependencies are inferred from the claim text.