초록 ▼

A medical device (e.g., an automated external defibrillator) automatically detects and reports cardiac asystole by first obtaining ECG data and calculating one or more ECG measures from the ECG data. The defibrillator evaluates the ECG data by classifying the ECG data into a class indicative of card

A medical device (e.g., an automated external defibrillator) automatically detects and reports cardiac asystole by first obtaining ECG data and calculating one or more ECG measures from the ECG data. The defibrillator evaluates the ECG data by classifying the ECG data into a class indicative of cardiac condition, wherein one class is indicative of cardiac asystole. If the defibrillator classifies the ECG data into the class indicative of cardiac asystole, the defibrillator reports the asystole classification on a display. The defibrillator may classify the ECG data into a rhythm class associated with a cardiac rhythm, such as asystole, and report the rhythm class of the ECG data on the display. The defibrillator may also suggest a procedure to undertake, such as a therapy (e.g., defibrillation for a shockable cardiac rhythm), based on the classification of the ECG data. The defibrillator may reserve reporting the detection of asystole until a predetermined number of ECG classifications over at least a predetermined period of time have resulted in an asystole classification. The defibrillator may also reserve reporting the detection of asystole until an ECG classification resulting in asystole has been performed outside of a predetermined period of time after application of a defibrillation pulse. A statistical binary classification and regression tree may be used to classify the ECG data according to cardiac rhythm. Other signal data, such as impedance or phonocardiographic signal data, may also be obtained and classified with the ECG data.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [51.]51. A medical device for automatically evaluating cardiac condition, comprising:(a) a plurality of sensors configured to detect one or more signals from a patient indicative of car

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [51.]51. A medical device for automatically evaluating cardiac condition, comprising:(a) a plurality of sensors configured to detect one or more signals from a patient indicative of cardiac condition;(b) a converter in signal communication with the plurality of sensors for converting the one or more signals into signal data;(c) a processing unit in signal communication with the converter for receiving and automatically evaluating the signal data by classifying the signal data into a class indicative of cardiac condition, the processing unit determining an instruction based on the classification of the signal data for guiding a first-responding caregiver in providing emergency triage and treatment of the patient without the benefit of expert human intervention;(d) a memory in signal communication with the processing unit for receiving and recording the class into which the signal data is classified by the processing unit, the class being recorded in a history of ECG classifications in the memory; and(e) a display in signal communication with the processing unit, the processing unit prompting the instruction on the display, and if the history of ECG classifications stored in the memory indicates that a predetermined number of ECG classifications over at least a predetermined period of time resulted in an asystole classification, the processing unit also prompting notification of asystole on the display.