System for preventing diastolic heart failure
View Patent ↗A pumping system for assisting the circulatory system of a patient, wherein the system includes a rotary flow blood pump by a first cannula connected to a portion of the left side of the heart and a second cannula connected to the aorta; and characterised in that the pumping speed of said pump is adjusted in accordance with measurements from a pressure sensor mounted in or on an inner wall of a portion of the left side of the heart.
1. A pumping system for assisting the circulatory system of a patient, comprising:
a rotary flow blood pump by a first cannula connected to a portion of the left side of the heart and a second cannula connected to the aorta;
a pressure sensor for providing blood pressure measurements by mounting the pressure sensor in or on an inner wall of the left side of the heart; and
a controller in communication with the pump, wherein the controller is configured to vary the speed of the pump over a cardiac cycle to thereby match a pumping speed to a heart rate profile based upon blood pressure measurements provided by the pressure sensor.
2. The pumping system of claim 1 , wherein the pump is capable of maintaining a predetermined blood pressure profile and range within the left atrium based on feedback received from the pressure sensor.
3. The pumping system of claim 1 , wherein the pump is capable of maintaining a predetermined blood pressure profile and range within the left ventricle based on feedback received from the pressure sensor.
4. The pumping system of claim 2 , wherein the pump is configured to maintain a predetermined blood pressure profile and range when the pressure sensor is mounted in the left atrium or the left atrial appendage.
5. The pumping system of claim 3 , further including a stent adapted for supporting the left side of the heart to prevent or limit collapse.
6. The pumping system of claim 1 , wherein the pressure sensor provides feedback directly to the pump.
7. The pumping system of claim 1 , wherein the pressure sensor provides feedback directly to the controller.
8. The pumping system of claim 1 , wherein the pump is a centrifugal type blood pump.