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US 11,590,337 B2Granted
Control device and method for a heart pump
AssigneeBerlin Heart GmbH
InventorsMarcus Granegger, Constantin Wiesener, Dominik Karch
Life of this patent
Estimating the term…
Abstract
A control device for a heart pump, comprising a device for establishing the end-diastolic filling pressure in a ventricle and a device for associating a delivery rate of the pump, in particular a pump speed or an electric pump capacity, with the established end-diastolic filling pressure. By taking into account the end-diastolic filling pressure, a robust operating option of the heart pump, similar to the physio-logical control, is created.
Claims9
A control device for a heart pump comprising:
- a processor configured to determine a value for an end-diastolic filling pressure in a ventricle from a pressure profile comprising ventricle pressures sensed during a cardiac cycle, the end-diastolic filling pressure being a pressure in the ventricle at a transition point where diastole ends and systole starts;
- and
- a memory device comprising a plurality of values for the end-diastolic filling pressure, a plurality of corresponding values characterising an operating parameter of the pump, and an association between the plurality of values for the end-diastolic filling pressure and the plurality of corresponding values characterising the operating parameter of the pump, wherein a non-linear, static relationship exists in the memory device between the values for the end-diastolic filling pressure and the corresponding values characterising the operating parameter of the pump;
- wherein the processor is configured to determine a value characterising the operating parameter of the pump, based on a difference between a target end-diastolic filling pressure value and the determined value for the end-diastolic filling pressure, from the association between the values for the end-diastolic filling pressure and the corresponding values characterising the operating parameter, wherein the operating parameter comprises a delivery rate of the pump, a pump speed, or an electric pump capacity, and
- wherein the processor is configured to control the heart pump using the determined value characterising the operating parameter in order to control the end-diastolic filling pressure.
2 more elements
A non-transitory computer readable medium that includes instructions executable by a processor, the computer readable medium comprising:
- instructions to determine a value for an end-diastolic filling pressure in a ventricle from a pressure profile comprising ventricle pressures sensed during a cardiac cycle, the end-diastolic filling pressure being a pressure in the ventricle at a transition point where diastole ends and systole starts;
- instructions to determine a value characterising an operating parameter of a pump, based on a difference between a target end-diastolic filling pressure value and the determined value for the end-diastolic filling pressure, from an association between a plurality of values for the end-diastolic filling pressure and a plurality of corresponding values characterising the operating parameter of the pump, wherein a non-linear, static relationship exists between the values for the end-diastolic filling pressure and the corresponding values characterising the operating parameter of the pump, further wherein the operating parameter comprises a delivery rate of a pump, a pump speed, or an electric pump capacity;
- and
- instructions to control the end-diastolic filling pressure by control of the pump using the determined value characterising the operating parameter of the pump.
1 more element
A method for controlling a heart pump, the method comprising:
- determining an association between a plurality of values for an end-diastolic filling pressure and a plurality of corresponding values characterising an operating parameter of the pump using an echocardiographic measurement of an emptying of the left ventricle or of a delivery volume of the left ventricle;
- determining a value for the end-diastolic filling pressure in a heart chamber of a heart from a pressure profile comprising heart chamber pressures measured with an absolute pressure sensor during a cardiac cycle, the end-diastolic filling pressure being a pressure in a ventricle at a transition point where diastole ends and systole starts;
- determining a value characterising an operating parameter of the pump based on a difference between a target end-diastolic filling pressure value and the determined value for the end-diastolic filling pressure from the association between the plurality of values for the end-diastolic filling pressure and the plurality of corresponding values characterising the operating parameter of the pump, wherein a non-linear, static relationship exists between the values for the end-diastolic filling pressure and the corresponding values characterising the operating parameter of the pump, further wherein the operating parameter comprises a delivery rate of a pump, a pump speed, or an electric pump capacity;
- and
- controlling the end-diastolic filling pressure by controlling the pump using the determined value characterising the operating parameter of the pump.
2 more elements
Dependencies are inferred from the claim text.