Monitoring of a cardiac assist device
AssigneeOslo Universitetssykehus Hf
InventorsPer Steinar HALVORSEN, Andreas ESPINOZA, Erik FOSSE
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Abstract
A control system for a cardiac assist device includes a sensor implantable in the body at the heart or at an implanted pump of the cardiac assist device, the sensor being for detecting motion of the pump within the body and hence being for monitoring movement of the pump, where the control system is arranged to, in use: receive signals from the sensor, the signals providing information on the movement of the pump; and to process the signals to monitor the pump speed and/or to identify pump malfunction and/or cardiac assist treatment complications.
Claims21
1-21. (canceled)
A method for cardiac assistance of a patient, the method comprising using a control system with a cardiac assist device, the cardiac assist device comprising an implanted pump and a graft, and the control system comprising one or more sensors implanted in the body at the heart or at the implanted pump or the graft of the cardiac assist device, wherein at least one of the one or more sensors is a motion sensor, the method including the steps of:
- detecting, with the motion sensor, a motion of the pump within the body and thereby monitoring the motion of the pump relative to the body;
- receiving signals by the control system from the motion sensor, the signals providing information on the motion of the pump relative to the body;
- determining information about pump function, including vibrations caused by an impeller and blood flow patterns through the pump, using the signals from the sensor;
- processing the signals received from the motion sensor in order to determine an acceleration signal associated with the cardiac assist device, in order to identify a pump malfunction or to identify complications to cardiac assist treatment;
- identifying a potential pump malfunction or complication based on the acceleration signal;
- determining, based on an analysis of the acceleration signal, when there is a failure or malfunction of the pump and the type of failure;
- and
- providing, by the control system, an alert to a user or operator when the potential pump malfunction or complication is identified.
A control system for a cardiac assist device, the system including:
- one or more sensors implantable in a body of a patient at a heart or an implanted pump or graft of the cardiac assist device, wherein at least one of the one or more sensors is a motion sensor, wherein the motion sensor is operative to detect a motion of the pump within the body and thereby to detect the motion of the pump relative to the body;
- the control system comprising a processor operative to, in use:
- receive signals from the sensor, the signals providing information on the motion of the pump relative to the body;
- determine information about pump function, including vibrations caused by an impeller and blood flow patterns through the pump, using the signals from the sensor;
- determine an acceleration signal associated with the cardiac assist device by processing the signals received from the motion sensor, in order to identify a pump malfunction or to identify complications to cardiac assist treatment;
- identify a potential pump malfunction or complication based on the acceleration signal;
- and
- determine, based on an analysis of the acceleration signal, when there is a failure or malfunction of the pump and the type of failure,
- wherein the control system is configured to provide an alert to a user or operator when the potential pump malfunction or complication is identified.
Dependencies are inferred from the claim text.