Vector-based shock indication
First Claim
1. A system for managing care of a person, the system comprising:
- an external defibrillator, configured to monitor electrocardiogram (ECG) data from a person receiving emergency cardiac assistance, the ECG data defining a vector from multiple ECG signals; and
one or more processors configured to perform operations comprising;
performing a vectorized mathematical transform of the ECG data that defines the vector from a time domain to a frequency domain using a window in the time domain, determining a likelihood of future defibrillation shock success using at least the mathematical transformation, andaffecting control of the external defibrillator based on an identification of whether a present defibrillation shock will likely be effective.
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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.
70 Citations
31 Claims
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1. A system for managing care of a person, the system comprising:
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an external defibrillator, configured to monitor electrocardiogram (ECG) data from a person receiving emergency cardiac assistance, the ECG data defining a vector from multiple ECG signals; and one or more processors configured to perform operations comprising; performing a vectorized mathematical transform of the ECG data that defines the vector from a time domain to a frequency domain using a window in the time domain, determining a likelihood of future defibrillation shock success using at least the mathematical transformation, and affecting control of the external defibrillator based on an identification of whether a present defibrillation shock will likely be effective. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A non-transitory machine-readable storage defibrillation device for treating cardiac arrhythmia, the machine-readable storage device storing instructions that are executable by one or more processors to perform operations comprising:
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acquiring electrocardiogram (ECG) signals from a person receiving emergency cardiac assistance; determining an ECG vector representation of the plurality of ECG signals comprising at least two orthogonal or near orthogonal signals indicative of the ECG electrical vector of the person, wherein the ECG vector representation includes information of both magnitude and direction of the ECG electrical vector; performing a mathematical transformation of the ECG vector representation from a time domain representation to a frequency domain representation of the ECG electrical vector; determining a likelihood of shock success of delivering a defibrillating shock to the person with one or more capacitors based on the frequency domain representation; and affecting control of an external defibrillator based on the determined likelihood of shock success.
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Specification