Patents by Inventor Katrin Lunze
Katrin Lunze has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230083542Abstract: A controller for a blood pump, in particular a catheter-based intravascular blood pump, configured to utilize detected or determined aortic pressures and left ventricular pressures in order to calculate a coupling factor, which is then used to determine how to adjust the rotational speed of the blood pump, such as when the blood pump is used in conjunction with ECMO devices.Type: ApplicationFiled: September 7, 2022Publication date: March 16, 2023Applicant: Abiomed Europe GmbHInventors: Christoph Nix, Stefan Boensch, Katrin Lunze
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Publication number: 20230048736Abstract: A control device (100) for controlling the rotational speed (nVAD(t)) of a non-pulsatile ventricular assist device, VAD, (50) uses an event-based within-a-beat control strategy, wherein the control device is configured to alter the rotational speed of the VAD within the cardiac cycle of the assisted heart and to synchronize the alteration of the rotational speed with the heartbeat by at least one sequence of trigger signals (?(t)) that is related to at least one predetermined characteristic event in the cardiac cycle. Further, a VAD (50) for assistance of a heart comprises the control device (100) for controlling the VAD, wherein the VAD is preferably a non-pulsatile rotational, for example catheter-based, blood pump.Type: ApplicationFiled: June 28, 2022Publication date: February 16, 2023Inventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn
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Publication number: 20220406449Abstract: The invention concerns a control device for controlling a blood flow of an intravascular blood pump for percutaneous insertion into a patient's blood vessel, the blood pump comprising a pump unit with a drive unit for driving the pump unit and configured to convey blood from a blood flow inlet towards a blood flow outlet, wherein the control device is configured to operate the blood pump in a selectable zero-flow control mode, wherein a blood flow command signal is selected, and the control device comprises a first controller and a second controller, wherein the first controller is configured to control the blood flow by adjusting a speed command signal for the drive unit, and the second controller is configured to control a drive speed of the drive unit.Type: ApplicationFiled: May 6, 2022Publication date: December 22, 2022Applicant: Abiomed Europe GmbHInventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn
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Patent number: 11413444Abstract: A control device (100) for controlling the rotational speed (nVAD(t)) of a non-pulsatile ventricular assist device, VAD, (50) uses an event-based within-a-beat control strategy, wherein the control device is configured to alter the rotational speed of the VAD within the cardiac cycle of the assisted heart and to synchronize the alteration of the rotational speed with the heartbeat by at least one sequence of trigger signals (?(t)) that is related to at least one predetermined characteristic event in the cardiac cycle. Further, a VAD (50) for assistance of a heart comprises the control device (100) for controlling the VAD, wherein the VAD is preferably a non-pulsatile rotational, for example catheter-based, blood pump.Type: GrantFiled: August 18, 2017Date of Patent: August 16, 2022Assignee: Abiomed Europe GmbHInventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn
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Publication number: 20220241578Abstract: A control device for a ventricular assist device (VAD) with settable speed levels. The control device includes an input configured to receive at least one measuring signal related to a physiological condition of the circulatory system of a patient receiving heart assistance by the VAD, where the control device is configured to derive an actual value of at least one characteristic parameter of the heart from one or more of the at least one measuring signal and to provide a refined actual value of the at least one characteristic parameter in which effects of physiologically caused fluctuations are eliminated or reduced. The control device further includes an output configured to output an updated setting value for the speed level, where the control device is configured to produce the updated setting value based on the refined actual value and a predeterminable set-point value.Type: ApplicationFiled: February 18, 2022Publication date: August 4, 2022Applicant: Abiomed Europe GmbHInventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix, Katrin Lunze
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Patent number: 11351358Abstract: The invention concerns a control device for controlling a blood flow of an intravascular blood pump for percutaneous insertion into a patient's blood vessel, the blood pump comprising a pump unit with a drive unit for driving the pump unit and configured to convey blood from a blood flow inlet towards a blood flow outlet, wherein the control device is configured to operate the blood pump in a selectable zero-flow control mode, wherein a blood flow command signal is selected, and the control device comprises a first controller and a second controller, wherein the first controller is configured to control the blood flow by adjusting a speed command signal for the drive unit, and the second controller is configured to control a drive speed of the drive unit.Type: GrantFiled: August 17, 2018Date of Patent: June 7, 2022Assignee: Abiomed Europe GMBHInventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn
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Patent number: 11285311Abstract: A control device for a ventricular assist device (VAD) with settable speed levels. The control device includes an input configured to receive at least one measuring signal related to a physiological condition of the circulatory system of a patient receiving heart assistance by the VAD, where the control device is configured to derive an actual value of at least one characteristic parameter of the heart from one or more of the at least one measuring signal and to provide a refined actual value of the at least one characteristic parameter in which effects of physiologically caused fluctuations are eliminated or reduced. The control device further includes an output configured to output an updated setting value for the speed level, where the control device is configured to produce the updated setting value based on the refined actual value and a predeterminable set-point value.Type: GrantFiled: October 16, 2017Date of Patent: March 29, 2022Assignee: ABIOMED EUROPE GMBHInventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix, Katrin Lunze
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Publication number: 20200246525Abstract: The invention concerns a control device for controlling a blood flow of an intravascular blood pump for percutaneous insertion into a patient's blood vessel, the blood pump comprising a pump unit with a drive unit for driving the pump unit and configured to convey blood from a blood flow inlet towards a blood flow outlet, wherein the control device is configured to operate the blood pump in a selectable zero-flow control mode, wherein a blood flow command signal is selected, and the control device comprises a first controller and a second controller, wherein the first controller is configured to control the blood flow by adjusting a speed command signal for the drive unit, and the second controller is configured to control a drive speed of the drive unit.Type: ApplicationFiled: August 17, 2018Publication date: August 6, 2020Inventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn
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Publication number: 20200038567Abstract: A control device for a ventricular assist device (VAD) with settable speed levels. The control device includes an input configured to receive at least one measuring signal related to a physiological condition of the circulatory system of a patient receiving heart assistance by the VAD, where the control device is configured to derive an actual value of at least one characteristic parameter of the heart from one or more of the at least one measuring signal and to provide a refined actual value of the at least one characteristic parameter in which effects of physiologically caused fluctuations are eliminated or reduced. The control device further includes an output configured to output an updated setting value for the speed level, where the control device is configured to produce the updated setting value based on the refined actual value and a predeterminable set-point value.Type: ApplicationFiled: October 16, 2017Publication date: February 6, 2020Inventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix, Katrin Lunze
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Publication number: 20190209755Abstract: A control device (100) for controlling the rotational speed (nVAD(t)) of a non-pulsatile ventricular assist device, VAD, (50) uses an event-based within-a-beat control strategy, wherein the control device is configured to alter the rotational speed of the VAD within the cardiac cycle of the assisted heart and to synchronize the alteration of the rotational speed with the heartbeat by at least one sequence of trigger signals (?(t)) that is related to at least one predetermined characteristic event in the cardiac cycle. Further, a VAD (50) for assistance of a heart comprises the control device (100) for controlling the VAD, wherein the VAD is preferably a non-pulsatile rotational, for example catheter-based, blood pump.Type: ApplicationFiled: August 18, 2017Publication date: July 11, 2019Inventors: Christoph Nix, Katrin Lunze, Thorsten Siess, Walid Aboulhosn