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US 12,508,418 B2Granted
Device and method for monitoring the state of health of a patient
AssigneeKardion GmbH
InventorsHardy Baumbach, Julian Kassel, Tjalf Pirk, Inga Schellenberg, Martina Budde, Thomas Alexander Schlebusch
Life of this patent
Estimating the term…
Abstract
The invention relates to a device (150) for monitoring the state of health of a patient (100), wherein the device (150) comprises an input interface (160) for inputting a first pressure signal (145) and a second pressure signal (155) and a processing unit (165) for processing the first pressure signal (145) and the second pressure signal (155) in order to determine a processing value (170) in order to monitor the state of health of the patient (100) based the processing value (170).
Claims26
A cardiac support system comprising:
- an intravascular blood guiding device configured to be delivered to a heart of a patient via the vasculature and to be positioned across the aortic valve;
- a first pressure sensor and a second pressure sensor, wherein the first pressure sensor and the second pressure sensor are disposed at a predetermined distance from one another in the intravascular blood guiding device such that the first pressure sensor and the second pressure sensor are configured to be located in a ventricle and an aorta of the heart, respectively, when the intravascular blood guiding device is positioned across the aortic valve;
- and
- a monitoring device for monitoring a condition of a patient, the first pressure sensor configured to send a first pressure signal to the monitoring device, the second pressure sensor configured to send a second pressure signal to the monitoring device, the monitoring device comprising:
- an input interface for receiving the first pressure signal and the second pressure signal;
- and
- a processing unit for processing the first pressure signal and the second pressure signal to determine a processing value indicative of the condition of the patient,
- wherein:
- the monitoring device determines a change in a differential pressure between the ventricle and the aorta of a heart of the patient based at least in part on the first pressure signal and the second pressure signal, and wherein the monitoring device determines an elasticity of a blood vessel proximate to the cardiac support system based at least in part on the changes in the differential pressure;
- the input interface is configured to receive a cardiac support blood flow value associated with the cardiac support system which represents a blood flow induced by the cardiac support system, wherein the processing unit is configured to use the cardiac support blood flow value as the processing value to determine a performance value of the heart;
- and
- the performance value is a pump power of the heart of the patient minus the cardiac support blood flow value.
9 more elements
A cardiac support system comprising:
- an intravascular blood guiding device configured to be delivered to a heart of a patient via the vasculature and to be positioned across the aortic valve;
- a first pressure sensor and a second pressure sensor, wherein the first pressure sensor and the second pressure sensor are disposed at a predetermined distance from one another in the intravascular blood guiding device such that the first pressure sensor and the second pressure sensor are configured to be located in a ventricle and an aorta of the heart, respectively, when the intravascular blood guiding device is positioned across the aortic valve;
- and
- a monitoring device for monitoring a condition of a patient, the first pressure sensor configured to send a first pressure signal to the monitoring device, the second pressure sensor configured to send a second pressure signal to the monitoring device, the monitoring device comprising:
- an input interface for receiving the first pressure signal and the second pressure signal;
- and
- a processing unit for processing the first pressure signal and the second pressure signal to determine a processing value indicative of the condition of the patient,
- wherein:
- the monitoring device determines a change in a differential pressure between the ventricle and the aorta of a heart of the patient based at least in part on the first pressure signal and the second pressure signal, and wherein the monitoring device determines an elasticity of a blood vessel proximate to the cardiac support system based at least in part on the changes in the differential pressure;
- and
- the input interface is configured to receive an ambient air pressure, and wherein the processing unit is configured to determine a blood pressure value of the patient based at least in part on the ambient air pressure.
8 more elements
A method for monitoring a condition of a patient using a cardiac support system, the method comprising:
- inserting the cardiac support system within a heart of the patient across the aortic valve, wherein the cardiac support system comprises a first pressure sensor and a second pressure sensor disposed at a predetermined distance from the first pressure sensor, wherein the cardiac support system comprises a hose having an inlet and an outlet located proximal to the inlet;
- receiving a first pressure signal of a ventricle of the heart and a second pressure signal of an aorta from the first pressure sensor and the second pressure sensor, respectively;
- receiving data related to an ambient air pressure;
- and
- determining, based at least in part on the first pressure signal, the second pressure signal, and the ambient air pressure, a processing value representing an elasticity of vascular walls of the patient;
- wherein the first pressure signal is indicative of a pressure in the ventricle of the heart of the patient at a location distal to the inlet, and wherein the second pressure signal is indicative of a pressure in the aorta of the heart of the patient at a location proximal to the outlet.
3 more elements
Dependencies are inferred from the claim text.