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US 2015/0148856 A1Published application
Rescuer protection from electrical shock during defibrillation
AssigneeZOLL Medical Corporation
InventorsGary A. Freeman, Weilun Quan
Life of this patent
Estimating the term…
Abstract
This document relates to cardiac resuscitation, and in particular to systems and techniques for protecting rescuers from electrical shock during defibrillation of a patient.
Claims29
A system comprising:
- a first set of ECG leads configured to be placed in contact with the skin of a rescuer;
- a second set of ECG leads configured to be placed in contact with the skin of a patient;
- and
- a computing device connected to the first and second set of ECG leads and configured to:
- determine whether a defibrillating shock to the patient's heart is suitable therapy based on one or more electrocardiogram signals of the patient received from the second set of ECG leads;
- and
- determine a gating signal configured to prohibit administration of the defibrillating shock to the patient's heart during one or more portions of the cardiac cycle of the rescuer, the gating signal determined based on one or more electrocardiogram signals of the rescuer received from the first set of ECG leads.
4 more elements
A medical system, comprising:
- a device configured to be placed in contact with the skin of a rescuer;
- an ECG lead configured to be placed in contact with the skin of the patient;
- and
- a safety mechanism configured to:
- detect electrical contact between the patient and the rescuer by applying a signal to the ECG lead and measuring a signal responsive to the applied signal at the device in contact with the skin of the rescuer;
- and
- prohibit delivery of a defibrillation shock upon detection of electrical contact between the rescuer and patient.
4 more elements
A method comprising:
- receiving a first ECG signal from a first set of ECG leads in contact with the skin of a rescuer;
- receiving a second ECG signal from a second set of ECG leads in contact with the skin of a patient;
- and
- determining whether a defibrillating shock to the patient's heart is suitable therapy based on one or more electrocardiogram signals of the patient received from the second set of ECG leads;
- and
- determining a gating signal configured to prohibit administration of the defibrillating shock to the patient's heart during one or more portions of the cardiac cycle of the rescuer, the gating signal determined based on one or more electrocardiogram signals of the rescuer received from the first set of ECG leads.
3 more elements
A method comprising:
- applying a signal to an ECG lead in contact with the skin of the patient;
- measuring a signal at a device in contact with the skin of a rescuer, the signal being responsive to the applied signal;
- detecting electrical contact between the patient and the rescuer based on the detected signal;
- and
- prohibiting delivery of a defibrillation shock upon detection of electrical contact between the rescuer and patient.
2 more elements
A system comprising:
- a sensor placed in contact with the skin of a rescuer;
- a set of ECG leads configured to be placed in contact with the skin of a patient;
- and
- a computing device connected to the sensor and the ECG leads and configured to:
- determine whether a defibrillating shock to the patient's heart is suitable therapy based on one or more electrocardiogram signals of the patient received from the set of ECG leads;
- and
- determine a gating signal configured to prohibit administration of the defibrillating shock to the patient's heart during one or more portions of a cardiac cycle of the rescuer, the gating signal determined based on one or more physiologic signals of the rescuer received from the sensor.
4 more elements
Dependencies are inferred from the claim text.