Vector-based shock indication
First Claim
1. A defibrillation system for managing care of a person, the defibrillation system comprising:
- an external defibrillator having one or more capacitors arranged to deliver a defibrillating shock to the person receiving emergency cardiac assistance;
a plurality of electrodes configured to be coupled to the person and acquire a plurality of electrocardiogram (ECG) signals from the heart of the person; and
a patient treatment module executable on one or more computer processors using code stored in non-transitory media and configured to execute operations comprising;
receiving the plurality of ECG signals acquired by the plurality of electrodes,determining an ECG vector representation of the plurality of ECG signals comprising at least two orthogonal or near orthogonal signals indicative of an ECG electrical vector of the person, wherein the ECG vector representation includes information of both magnitude and direction of the ECG electrical vector,identifying an angle of the ECG vector representation to provide an indication of whether the defibrillating shock should be delivered to the person via the one or more capacitors, anddelivering the defibrillating shock to the person based on the identified angle of the ECG vector representation.
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Accused Products
Abstract
A system for managing care of a person receiving emergency cardiac assistance includes one or more capacitors arranged to deliver a defibrillating shock to a person; one or more electronic ports for receiving a plurality of signals from sensors for obtaining indications of an electrocardiogram (ECG) for the person; and a patient treatment module executable on one or more computer processors using code stored in non-transitory media and to provide a determination of a likelihood of success from delivering a future defibrillating shock to the person with the one or more capacitors, using a mathematical computation applied to a vector value defined by signals from at least two of the plurality of signals.
69 Citations
35 Claims
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1. A defibrillation system for managing care of a person, the defibrillation system comprising:
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an external defibrillator having one or more capacitors arranged to deliver a defibrillating shock to the person receiving emergency cardiac assistance; a plurality of electrodes configured to be coupled to the person and acquire a plurality of electrocardiogram (ECG) signals from the heart of the person; and a patient treatment module executable on one or more computer processors using code stored in non-transitory media and configured to execute operations comprising; receiving the plurality of ECG signals acquired by the plurality of electrodes, determining an ECG vector representation of the plurality of ECG signals comprising at least two orthogonal or near orthogonal signals indicative of an ECG electrical vector of the person, wherein the ECG vector representation includes information of both magnitude and direction of the ECG electrical vector, identifying an angle of the ECG vector representation to provide an indication of whether the defibrillating shock should be delivered to the person via the one or more capacitors, and delivering the defibrillating shock to the person based on the identified angle of the ECG vector representation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for managing care of a person, the method comprising:
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monitoring, with an external defibrillator, electrocardiogram (ECG) data from the person receiving emergency cardiac assistance, the ECG data defining an ECG vector representation from a plurality of ECG signals; performing a vectorized mathematical transform of the ECG data that defines the ECG vector representation from a time domain to a frequency domain using a window in the time domain; identifying an angle of the ECG vector representation to provide an indication of whether a defibrillating shock should be delivered to the person via one or more capacitors; and delivering the defibrillating shock to the person based on the identified angle of the ECG vector representation. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification