초록 ▼

The invention relates to a system and apparatus, particularly adapted for use with an automatic implantable defibrillator, for monitoring electrocardiagram (ECG) data signals to provide a continuously updated recording of the ECG data. The proposed recorder responds to the operating condition of the

The invention relates to a system and apparatus, particularly adapted for use with an automatic implantable defibrillator, for monitoring electrocardiagram (ECG) data signals to provide a continuously updated recording of the ECG data. The proposed recorder responds to the operating condition of the automatic implanted defibrillator device and places into storage, for subsequent readout by the patient\s doctor, ECG data both immediately preceding the onset of a ventricular fibrillation episode and also during the subsequent defibrillation activity, when one or more high energy electrical impulses are applied to the patient\s heart. Selected other data regarding operation of the implanted defibrillator and pertinent to the doctor\s evaluation of the patient\s condition as well as the efficacy of the defibrillator unit, are also recorded by the proposed apparatus for subsequent readout. In addition, the proposed recording apparatus operates to automatically alert the patient that ventricular fibrillation has been detected and that defibrillation is to be attempted, so that appropriate precautions may be taken. Moreover, following defibrillation, the patient is alerted in a distinctive manner that defibrillation has occurred and that a physician should be contacted, as soon as possible.

대표청구항 ▼

A recorder system, adapted for use with an automatic defibrillator system responsive to a patient\s electrocardiagram (ECG) data and capable of detecting the occurrence of abnormal cardiac activity and render effective automatically in response thereto to generate and apply one or more defibrillatio

A recorder system, adapted for use with an automatic defibrillator system responsive to a patient\s electrocardiagram (ECG) data and capable of detecting the occurrence of abnormal cardiac activity and render effective automatically in response thereto to generate and apply one or more defibrillation electrical impulses to the patient\s heart intended to return the heart to normal functioning, said recorder system being responsive to the patient\s ECG data and comprising, in combination, means for sampling and converting said ECG data from analog to digital form, first and second ECG data digital storage means, means for registering the occurrence of said abnormal cardiac activity as detected by said automatic defibrillator system, storage control means controlled by said occurrence registering means responsive to the occurrence of said abnormal cardiac activity for selectively rendering effective said first and second ECG data storage means to store ECG digital data occurring respectively for a first time period just prior to the occurrence of said abnormal cardiac activity or for a second time period encompassing the application of said defibrillation impulse(s) by said automatic defibrillator system, time registration means controlled by said occurrence registering means responsive to the occurrence of said abnormal cardiac activity for registering as a digital code the time of occurrence of said abnormal cardiac activity, first counting means responsive to the generation of each defibrillation impulse by said automatic defibrillation system for registering as a digital code a count of the number of said defibrillation electrical impulses generated by said automatic defibrillator system, second counting means responsive to said occurrence registering means for registering as a digital code a count of the number of occurrences of said abnormal cardiac activity, and readout control means operable upon command for reading out (a) the ECG digital data stored in each of said first and second storage means, (b) the digital code time registration of said time registration means, and (c) the digital code counts of each of said first and second counting means.