Method and Apparatus for Assisting a Heart

A method for assisting a heart of a patient comprising the steps of:

• producing a source signal having currents having a frequency by a sensor implanted in the patient, the sensor in communication with a cardiac assist device implanted into the patient to assist the heart with pumping blood and the heart, the cardiac assist device has a shaft that is adapted to be engaged with the heart, the cardiac assist device includes a motor and an impeller disposed in the shaft which is driven by the motor to assist the heart with pumping blood, thereby reducing mechanical load on the heart and promoting recovery, the sensor includes a computer for data acquisition and analysis of the source signal, the computer in communication with the electrodes, the computer produces the source signal which includes electrical currents having the frequency and measures corresponding voltages to make measurements and analyze the measurements and noise associated with the measurements to make real-time volume measurements of the heart, the sensor dynamically shifting the frequency of the currents of the source signal to avoid noise in the patient from the motor during operation of the cardiac assist device while the cardiac assist device is implanted in the patient;
• monitoring the heart by the sensor with the_source signal;
• and
• the sensor dynamically shifting the frequency of the electrical currents of the source signal in real time to avoid noise in the patient to the sensor.

A method for assisting a heart of a patient comprising the steps of:

• producing a source signal having electrical currents having a frequency by a computer of a sensor implanted in the patient, the sensor in communication with a cardiac assist device implanted into the patient to assist the heart with pumping blood and the heart, the cardiac assist device has a shaft that is adapted to be engaged with the heart, the cardiac assist device includes a pump having a motor and an impeller engaged with the shaft which is driven by the motor to assist the heart with pumping blood, thereby reducing mechanical load on the heart and promoting recovery, the computer performing data acquisition and analysis of the source signal, the computer measures corresponding voltages to make measurements and analyze the measurements to make real-time volume measurements of the heart, the sensor dynamically shifting the frequency of the electrical currents of the source signal to avoid noise in the patient from the pump during operation of the cardiac assist device while the cardiac assist device is implanted in the patient, and a microcontroller clock or oscillator that is at the frequency at least 100× higher than the electrical currents at the frequency;
• monitoring the heart by the sensor with the source signal;
• and
• the sensor dynamically shifting the frequency of the electrical currents of the source signal in real time to avoid noise in the patient from the pump.