PATENT CLAIM ANALYSIS

Application Number: 15960030
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["607", "005000"]

Abstract:
An external defibrillator estimates the phase of ventricular defibrillation (VF) by deriving, from an ECG exhibiting VF, at least one quality marker representing the morphology of the ECG and, therefore, the duration of the VF. The duration of the VF is calculated as a function of the value (s) of the quality marker (s). The quality marker (s) may comprise any one or more of the median slope of the ECG, the average slope of the ECG, the ratio of the power in relatively high and low frequency bands of the ECG, and a measure of the density and amplitude of peaks in the ECG, over a predetermined period.

Claim (Index 6):
An external defibrillator comprising:\n a processor; a pair of electrodes; and a non-transitory computer-readable storage medium having instructions stored which, when executed by the processor, perform operations comprising:\n receiving electrical signals from the pair of electrodes when the pair of electrodes are in contact with a patient; \n determining, from the electrical signals, an electrocardiogram of the patient; and \n when, based on the electrocardiogram, the patient is in a state of ventricular fibrillation;\n identifying an average of slopes over a period of time in the electrocardiogram; \n estimating a current phase of ventricular fibrillation based on the average of slopes; and \n outputting an instruction based on the current phase of ventricular fibrillation, wherein the average of slopes is calculated based on a duration of the ventricular fibrillation and using quality marker(s), as follows: \n \n t = - B + C \ue8a0 [ - ln \ue8a0 ( Q - D A ) ] E where t represents the duration of the ventricular fibrillation, A, B, C, D, and E are constants, and Q represents a value of the quality marker, if only one, or a linear combination the values of the quality markers if more than one.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 91.0
- Lexical Diversity: 2.09836
- Patent Class: 607.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13318162', '15046680', '10834412', '15649197', '14791836']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6507154746421645
- 35 USC 102 Novelty (BERT): 0.5340363127316791
- Combined Prediction Score: 0.639047558451116
- Mean Citation Score: 266.28784
- Max Citation Score: 386.70193
- Similarity Product: 372.23254463971136

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test