Patents by Inventor Christoph Nix
Christoph Nix 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: 20240123213Abstract: The invention relates to an intravascular blood pump. The blood pump comprises a pump section having a proximal portion with a blood flow inlet and a distal portion with a blood flow outlet and an impeller for causing blood to flow into the blood flow inlet and towards the blood flow outlet. The blood pump further comprises at least one filter connected to the proximal portion of the pump section and arranged with respect to the blood flow inlet so as to filter the blood before it enters the blood flow inlet. The filter may comprise an expandable mesh structure made of a shape-memory material.Type: ApplicationFiled: September 25, 2023Publication date: April 18, 2024Applicant: Abiomed Europe GmbHInventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix
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Patent number: 11833278Abstract: The invention relates to an intravascular blood pump. The blood pump comprises a pump section having a proximal portion with a blood flow inlet and a distal portion with a blood flow outlet and an impeller for causing blood to flow into the blood flow inlet and towards the blood flow outlet. The blood pump further comprises at least one filter connected to the proximal portion of the pump section and arranged with respect to the blood flow inlet so as to filter the blood before it enters the blood flow inlet. The filter may comprise an expandable mesh structure made of a shape-memory material.Type: GrantFiled: December 7, 2020Date of Patent: December 5, 2023Assignee: Abiomed Europe GmbhInventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix
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Publication number: 20230381480Abstract: A sheath for producing a fully sealed access to the interior of a vessel of an animal or human body comprises a base sheath having a tubular body defining a pass-through channel. The base sheath is adapted to be inserted into the vessel through a vessel aperture. The sheath further comprises an expansion device which is adapted to cooperate with the base sheath such that the outer diameter of the sheath increases in the region of the vessel aperture with the sheath in a stationary position in the vessel and upon actuation of the expansion device.Type: ApplicationFiled: May 3, 2023Publication date: November 30, 2023Applicant: Abiomed Europe GmbHInventors: Thorsten Siess, Christoph Nix, Frank Kirchhoff, Ger O'Carrol
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DEVICE AND METHOD FOR DETERMINATION OF A CO2 PARTIAL PRESSURE VALUE ON A BLOOD SIDE OF AN OXYGENATOR
Publication number: 20230330311Abstract: Device for determination of a CO2 partial pressure value on a blood side of an oxygenator having an oxygenator with a blood side, a gas side and a semipermeable membrane, wherein the membrane separates the blood side from the gas side, the gas side has an inlet and an outlet and, during operation of the oxygenator, a gas flow flows into the inlet to the outlet at a flow rate. The device also has a first sensor configured to measure CO2 partial pressure values of the gas side and a control unit configured to process the measured CO2 partial pressure values of the gas side and to determine a CO2 partial pressure value on the blood side based on the measured CO2 partial pressure values of the gas side. The control unit determines the CO2 partial pressure value on the blood side during operation of the oxygenator.Type: ApplicationFiled: March 26, 2021Publication date: October 19, 2023Applicant: Abiomed Europe GmbHInventors: Christoph Nix, Verena Zscherlich -
Patent number: 11730939Abstract: A sheath for producing a fully sealed access to the interior of a vessel of an animal or human body comprises a base sheath having a tubular body defining a pass-through channel. The base sheath is adapted to be inserted into the vessel through a vessel aperture. The sheath further comprises an expansion device which is adapted to cooperate with the base sheath such that the outer diameter of the sheath increases in the region of the vessel aperture with the sheath in a stationary position in the vessel and upon actuation of the expansion device.Type: GrantFiled: July 6, 2015Date of Patent: August 22, 2023Assignee: ABIOMED EUROPE GMBHInventors: Thorsten Siess, Christoph Nix, Frank Kirchhoff, Ger O'Carrol
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Patent number: 11724091Abstract: A blood pump system including a blood pump, an intravascular flow cannula, and a pressure sensor. The intravascular flow cannula is in flow communication with the blood pump and has a distal end portion distally from the blood pump and a proximal end portion closer to the blood pump. The intravascular flow cannula has at least one blood flow through opening at its distal end portion for blood to enter or exit the flow cannula. The blood flow through opening has a borderline surrounding the through opening. The pressure sensor is configured radially within the flow cannula and borders a proximal portion of the borderline.Type: GrantFiled: February 10, 2017Date of Patent: August 15, 2023Assignee: ABIOMED EUROPE GMBHInventors: Thorsten Siess, Frank Kirchhoff, Christoph Nix
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Publication number: 20230137664Abstract: An intravascular blood pump (1) comprises a ring seal (10) that is configured to assume a collapsed configuration and an expanded configuration and configured to contact and seal against an inner wall of the patient’s blood vessel when inserted therein in the expanded configuration. A support member (12; 13) is disposed inside the ring seal (10) in order to support the ring seal (10) from the inside, wherein the support member (12; 13) is configured to collapse at least partially when a predetermined pressure difference between a proximal area and a distal area of the blood vessel acting on the ring seal (10) is exceeded.Type: ApplicationFiled: November 2, 2022Publication date: May 4, 2023Applicant: Abiomed Europe GMBHInventors: Thorsten Siess, Christoph Nix, Walid Aboulhosn
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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: 11517726Abstract: An intravascular blood pump (1) comprises a ring seal (10) that is configured to assume a collapsed configuration and an expanded configuration and configured to contact and seal against an inner wall of the patient's blood vessel when inserted therein in the expanded configuration. A support member (12; 13) is disposed inside the ring seal (10) in order to support the ring seal (10) from the inside, wherein the support member (12; 13) is configured to collapse at least partially when a predetermined pressure difference between a proximal area and a distal area of the blood vessel acting on the ring seal (10) is exceeded.Type: GrantFiled: May 3, 2018Date of Patent: December 6, 2022Assignee: Abiomed Europe GMBHInventors: Thorsten Siess, Christoph Nix, 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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Publication number: 20220105339Abstract: Electrode assembly patches configured for conductance and admittance measurements, and methods of manufacturing same. The present technology provides designs and manufacturing methods that may enable a conductance or admittance electrode assembly patches to be flexible, low-profile, and easily applied to an intravascular blood pump or other device, such that there may be little or no change to the device's overall diameter, profile, and functionality.Type: ApplicationFiled: October 7, 2021Publication date: April 7, 2022Applicant: Abiomed Europe GmbHInventors: Christoph Nix, Mithun Rajaram, Verena Zscherlich
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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: 20210299433Abstract: A blood pump comprises a pump section and a flow cannula. A proximal end portion of the flow cannula is connected to the pump section such that blood can enter the blood flow inlet, and a distal end portion of the flow cannula includes at least one blood flow-through opening for blood to enter the flow cannula. The distal end portion comprises an enlarged diameter portion, with at least a major portion of the blood flow-through opening being disposed in the enlarged diameter portion. The blood pump further comprises a sleeve overlapping the enlarged diameter portion. The sleeve has a structure that prevents its distal end from bending radially inwards into the blood flow-through openings.Type: ApplicationFiled: April 14, 2021Publication date: September 30, 2021Applicant: Abiomed Europe GmbHInventors: Thorsten Siess, Walid Aboulhosn, Frank Kirchhoff, Christoph Nix, Gerd Bruno Spanier
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Publication number: 20210170158Abstract: The invention relates to an intravascular blood pump. The blood pump comprises a pump section having a proximal portion with a blood flow inlet and a distal portion with a blood flow outlet and an impeller for causing blood to flow into the blood flow inlet and towards the blood flow outlet. The blood pump further comprises at least one filter connected to the proximal portion of the pump section and arranged with respect to the blood flow inlet so as to filter the blood before it enters the blood flow inlet. The filter may comprise an expandable mesh structure made of a shape-memory material.Type: ApplicationFiled: December 7, 2020Publication date: June 10, 2021Applicant: Abiomed Europe GmbhInventors: Thorsten Siess, Walid Aboulhosn, Christoph Nix
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Patent number: 11020584Abstract: The invention relates to an intravascular blood pump. The blood pump comprises a pump section and a flow cannula. A proximal end portion of the flow cannula is connected to the pump section such that blood can enter the blood flow inlet, and a distal end portion of the flow cannula includes at least one blood flow-through opening for blood to enter the flow cannula. The distal end portion comprises an enlarged diameter portion, with at least a major portion of the blood flow-through opening being disposed in the enlarged diameter portion. The blood pump further comprises a sleeve overlapping the enlarged diameter portion. The sleeve has a structure that prevents its distal end from bending radially inwards into the blood flow-through openings.Type: GrantFiled: February 10, 2017Date of Patent: June 1, 2021Assignee: ABIOMED EUROPE GMBHInventors: Thorsten Siess, Walid Aboulhosn, Frank Kirchhoff, Christoph Nix, Gerd Spanier
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Publication number: 20210146109Abstract: A sheath for producing a fully sealed access to the interior of a vessel of an animal or human body comprises a base sheath having a tubular body defining a pass-through channel. The base sheath is adapted to be inserted into the vessel through a vessel aperture. A wall of the tubular body of the base sheath has a through channel. This channel extends in the wall from the distal end towards the proximal end. The channel can be present separately from the pass-through channel of the base sheath or can form a sideways extension of the pass-through channel, at least at the distal end. Such through channel is adapted to conduct blood from the vessel to the proximal end of the sheath when the sheath has been inserted into a vessel.Type: ApplicationFiled: December 1, 2020Publication date: May 20, 2021Inventors: Thorsten Siess, Christoph Nix, Frank Kirchhoff, Patrick Hunziker