Patient behavior sensitive controller
A method of controlling an implantable blood pump of a living patient. The method includes receiving one or more pump signals indicating at least one from the group consisting of a motor speed of the blood pump, power supplied to the blood pump, and differential pressure exerted by the blood pump. One or more medication signals is received indicating whether the patient has taken a medication. The flow rate of blood based on a combination of the one or more pump signals and the medication signals is determined. At least one from the group consisting of increasing and decreasing power is supplied to the pump in response to the determined flow rate.
1. A method for identifying the presence of an adverse health condition in a patient having an implanted blood pump, comprising:
receiving a first indication of a parameter of the blood pump at a first point in time;
receiving two or more signals to indicate that the patient has taken a medication, the two or more signals including:
a manual input from the patient indicating that the patient has taken the medication after the first point in time and before a second point in time; and
a physiological parameter signal indicating that a physiological response has occurred in response to the medication;
predicting the parameter of the blood pump at the second point in time based at least in part on the first indication of the parameter and the two or more signals;
receiving a second indication of the parameter of the blood pump at the second point in time;
identifying the presence of an adverse health condition in the patient if the parameter of the blood pump at the second point in time deviates from the predicted parameter by more than a threshold amount; and
generating an alert indicating that at least one from the group consisting of the patient has not taken the medication, the medication has not been effective, and an adverse health condition is present in the patient.
2. The method of claim 1 , wherein the parameter is an amount of power supplied to the blood pump.
3. The method of claim 1 , wherein the adverse health condition is thrombus.
4. The method of claim 1 , wherein predicting the parameter of the blood pump at the second point in time is further based on at least one of:
a clock signal indicating a time of day; and
an activity signal indicating a level of physical activity of the patient.
5. The method of claim 1 , wherein at least one of the two or more signals is indicative of a change in viscosity of the patient's blood, wherein the medication reduces viscosity of the patient's blood.
6. The method of claim 1 , wherein at least one of the two or more signals is indicative of dilation of the patient's vasculature, wherein the medication increases dilation of the patient's vasculature.
7. A system for identifying the presence of an adverse health condition in a patient having an implanted blood pump, the system comprising:
two or more sensors;
a signal processing circuit coupled to the two or more sensors, the signal processing circuit configured to:
receive from one of the two or more sensors a first indication of a parameter of the blood pump at a first point in time;
receive from one of the two or more sensors two or more signals indicating that the patient has taken a medication after the first point in time and before a second point in time, the two or more signals including:
a manual input from the patient indicating that the patient has taken the medication; and
a physiological parameter signal indicating that a physiological response has occurred in response to the medication; and
predict the parameter of the blood pump at the second point in time based at least in part on the first indication of the parameter and the two or more signals;
receive from one of the two or more sensors a second indication of the parameter of the blood pump at the second point in time;
identify the presence of an adverse health condition in the patient if the parameter of the blood pump at the second point in time deviates from the predicted parameter by more than a threshold amount; and
generate an alert indicating that at least one from the group consisting of the patient has not taken the medication, the medication has not been effective, and an adverse health condition is present in the patient.
8. The system of claim 7 , wherein the parameter is an amount of power supplied to the blood pump.
9. The system of claim 7 , wherein the adverse health condition is thrombus.
10. The system of claim 7 , wherein the prediction of the parameter of the blood pump at the second point in time is further based on at least one of:
a clock signal indicating a time of day; and
an activity signal indicating a level of physical activity of the patient.
11. The system of claim 7 , wherein the two or more signals is indicative of a change in viscosity of the patient's blood, wherein the medication reduces viscosity of the patient's blood.
12. The system of claim 7 , wherein the two or more signals is indicative of dilation of the patient's vasculature, wherein the medication increases dilation of the patient's vasculature.