Patents by Inventor Kurt Graichen
Kurt Graichen 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).
-
Patent number: 11906411Abstract: A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.Type: GrantFiled: March 5, 2021Date of Patent: February 20, 2024Assignee: Berlin Heart GmbHInventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
-
Publication number: 20210190658Abstract: A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.Type: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Applicant: Berlin Heart GmbHInventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
-
Patent number: 10942103Abstract: A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.Type: GrantFiled: July 27, 2018Date of Patent: March 9, 2021Assignee: BERLIN HEART GMBHInventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
-
Patent number: 10926012Abstract: The present application relates to a blood pump, preferably for assisting a heart, wherein the blood pump comprises a housing with a distal inlet, a proximal inlet, and a mandrel arranged between the inlet and the outlet. A rotor with blading is arranged on the mandrel coaxially and rotatably. The rotor is mounted on the mandrel magnetically in an axial direction. In one embodiment the outlet is situated proximally to a proximal end of the blading of the rotor.Type: GrantFiled: September 12, 2016Date of Patent: February 23, 2021Assignee: BERLIN HEART GMBHInventors: Peter Nüsser, Leonid Choub, Kurt Graichen, Jörg Müller
-
Patent number: 10744248Abstract: A cardiac assistance system is provided that comprises two pumps and cannulae connected thereto. A first pump of the two pumps is configured to connect to a right heart system via a first fluid channel. The first fluid channel formed at least partially by a first two cannulae of the cannulae. A second pump of the two pumps is configured to connect to a left heart system via a second fluid channel. The second fluid channel formed at least partially by a second two of the cannulae. The two pumps are configured as rotary pumps for arrangement outside a patient's body.Type: GrantFiled: April 12, 2018Date of Patent: August 18, 2020Assignee: BERLIN HEART GMBHInventors: Peter Nüsser, Nedim Arslan, Kurt Graichen, Jörg Müller
-
Publication number: 20190388831Abstract: A device for separating condensed water from an operating gas of a pneumatic pulsatile system is provided. The device has a gas line section with a gas inlet and a first and a second gas outlet. The device further comprises a condensation container for extracting the condensed water out of the operating gas, said condensation container being connected to the second gas outlet. A transition region from the second gas outlet to the condensation container has a cross-sectional enlargement, and the condensation container has means for discharging the extracted condensed water. A pneumatic pulsatile system and a cardiac support system are also provided.Type: ApplicationFiled: January 24, 2018Publication date: December 26, 2019Applicant: Berlin Heart GmbHInventors: Nedim Arslan, Kurt Graichen, Christian Robbenmenke, Aaron Rodemerk
-
Publication number: 20190351118Abstract: A heart pump and a method for operating a VAD (ventricular assist device) heart pump, in which method a time-dependent pressure of the blood to be delivered is measured directly by means of at least one pressure sensor arranged on the pump inlet and/or on the pump outlet. A temperature of the blood is additionally detected. By evaluating the measured pressure profiles and/or corresponding rates of change of the measured pressure, it is possible for delivery parameters of the pump, and physiological values of the heart assisted by the pump, to be determined in a convenient and reliable manner.Type: ApplicationFiled: August 22, 2016Publication date: November 21, 2019Applicant: Berlin Heart GmbHInventors: Kurt Graichen, Constantin Wiesener, Sebastian Kallenbach
-
Patent number: 10232099Abstract: A blood pump has a hollow body in which an impeller with a spiral blading produces an axial propulsion of blood along the impeller, as well as an at least partly actively stabilized magnetic bearing device and a hydrodynamic bearing device for the impeller. The impeller may be set into a rotation about a rotation axis of the impeller with a motor stator located outside the hollow body. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction which is offset to the rotation axis of the impeller to produce a non-zero outflow angle (?) between the inflow direction and the outflow direction. A total artificial heart can be formed from two such blood pumps.Type: GrantFiled: June 30, 2017Date of Patent: March 19, 2019Assignee: BERLIN HEART GMBHInventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt
-
Publication number: 20190046704Abstract: A blood pump is provided that comprises a housing with an inlet arranged upstream, an outlet arranged downstream, and a rotatably mounted rotor with an axis and a blading. The rotor comprises a cylinder bushing or a cylinder, wherein the blading is arranged on an outer surface of the cylinder. The rotor is magnetically mounted in an axial direction and comprises at least a first ring, which is secured to the blading, runs radially externally around the blading, and is magnetised in the axial direction, and also a second magnetised ring portion, which runs externally around the first ring, for forming an axial magnetic bearing.Type: ApplicationFiled: September 12, 2016Publication date: February 14, 2019Applicant: Berlin Heart GmbHInventors: Leonid Choub, Kurt Graichen, J?rg Müller, Peter Nüsser, Adrian Wisniewski
-
Patent number: 10159773Abstract: A blood pump includes a hollow body in which an impeller with blading is provided for producing an axial propulsion of blood along the impeller. An at least partly actively stabilized magnetic bearing device is provided wherein the impeller may be set into a rotation about a rotation axis of the impeller, with a motor stator. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction.Type: GrantFiled: March 7, 2016Date of Patent: December 25, 2018Assignee: BERLIN HEART GMBHInventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt, Leonid Choub
-
Publication number: 20180335373Abstract: A method and a device for the measurement of one or more fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element which is mounted in a magnet bearing, and the delivery element of the fluid pump is excited into an oscillation by way of an excitation device, wherein the oscillation parameters as well as, as the case may be, the oscillation behaviour is measured, and parameters of the fluid are determined from this.Type: ApplicationFiled: July 27, 2018Publication date: November 22, 2018Applicant: Berlin Heart GmbHInventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
-
Publication number: 20180303991Abstract: The present application relates to a blood pump, preferably for assisting a heart, wherein the blood pump comprises a housing with a distal inlet, a proximal inlet, and a mandrel arranged between the inlet and the outlet. A rotor with blading is arranged on the mandrel coaxially and rotatably. The rotor is mounted on the mandrel magnetically in an axial direction. In one embodiment the outlet is situated proximally to a proximal end of the blading of the rotor.Type: ApplicationFiled: September 12, 2016Publication date: October 25, 2018Applicant: Berlin Heart GmbHInventors: Peter Nüsser, Leonid Choub, Kurt Graichen, Jörg Müller
-
Patent number: 10060843Abstract: A method and a device for the measurement of fluid-mechanically effective parameters of a fluid, with a fluid pump which comprises a delivery element (2) which is mounted in a magnet bearing (10, 10a, 11, 11a), according to the invention, envisages the delivery element (2) of the fluid pump being excited into an oscillation by way of an excitation device (16, 44), wherein the oscillation parameters as well as, as the case may be, the oscillation behavior is measured, and parameters of the fluid are determined from this.Type: GrantFiled: February 18, 2016Date of Patent: August 28, 2018Assignee: Berlin Heart GmbHInventors: Kurt Graichen, Andreas Arndt, Peter Nuesser
-
Publication number: 20180228956Abstract: A cardiac assistance system is provided that comprises two pumps and cannulae connected thereto. A first pump of the two pumps is configured to connect to a right heart system via a first fluid channel. The first fluid channel formed at least partially by a first two cannulae of the cannulae. A second pump of the two pumps is configured to connect to a left heart system via a second fluid channel. The second fluid channel formed at least partially by a second two of the cannulae. The two pumps are configured as rotary pumps for arrangement outside a patient's body.Type: ApplicationFiled: April 12, 2018Publication date: August 16, 2018Applicant: Berlin Heart GmbHInventors: Peter Nüsser, Nedim Arslan, Kurt Graichen, Jörg Müller
-
Patent number: 9995310Abstract: A rotary pump includes a rotor having delivery elements which deliver at least a portion of a fluid in an axial direction of the rotor. Two delivery elements or groups of delivery elements are provided on the rotor for delivering the fluid, and deliver the fluid to be delivered in mutually opposing axial directions of the rotor, so that the axial thrust components substantially compensate each other. The fluid flows flowing counter to each other jointly give way in the radial direction of the rotor and can be jointly discharged through the volute casing and utilized.Type: GrantFiled: August 8, 2012Date of Patent: June 12, 2018Assignee: BERLIN HEART GMBHInventor: Kurt Graichen
-
Publication number: 20170296725Abstract: A blood pump has a hollow body in which an impeller with a spiral blading produces an axial propulsion of blood along the impeller, as well as an at least partly actively stabilized magnetic bearing device and a hydrodynamic bearing device for the impeller. The impeller may be set into a rotation about a rotation axis of the impeller with a motor stator located outside the hollow body. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction which is offset to the rotation axis of the impeller to produce a non-zero outflow angle (?) between the inflow direction and the outflow direction. A total artificial heart can be formed from two such blood pumps.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Inventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt
-
Patent number: 9731056Abstract: A blood pump has a hollow body in which an impeller with a spiral blading produces an axial propulsion of blood along the impeller, as well as an at least partly actively stabilized magnetic bearing device and a hydrodynamic bearing device for the impeller. The impeller may be set into a rotation about a rotation axis of the impeller with a motor stator located outside the hollow body. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction which is offset to the rotation axis of the impeller to produce a non-zero outflow angle (?) between the inflow direction and the outflow direction. A total artificial heart can be formed from two such blood pumps.Type: GrantFiled: June 24, 2016Date of Patent: August 15, 2017Assignee: Berlin Heart GMBHInventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt
-
Publication number: 20160303300Abstract: A blood pump has a hollow body in which an impeller with a spiral blading produces an axial propulsion of blood along the impeller, as well as an at least partly actively stabilized magnetic bearing device and a hydrodynamic bearing device for the impeller. The impeller may be set into a rotation about a rotation axis of the impeller with a motor stator located outside the hollow body. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction which is offset to the rotation axis of the impeller to produce a non-zero outflow angle (?) between the inflow direction and the outflow direction. A total artificial heart can be formed from two such blood pumps.Type: ApplicationFiled: June 24, 2016Publication date: October 20, 2016Inventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt
-
Publication number: 20160243294Abstract: A blood pump includes a hollow body in which an impeller with blading is provided for producing an axial propulsion of blood along the impeller. An at least partly actively stabilised magnetic bearing device is provided wherein the impeller may be set into a rotation about a rotation axis of the impeller, with a motor stator. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction.Type: ApplicationFiled: March 7, 2016Publication date: August 25, 2016Inventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt, Leonid Choub
-
Patent number: 9393355Abstract: A blood pump has a hollow body in which an impeller with a spiral blading produces an axial propulsion of blood along the impeller, as well as an at least partly actively stabilized magnetic bearing device and a hydrodynamic bearing device for the impeller. The impeller may be set into a rotation about a rotation axis of the impeller with a motor stator located outside the hollow body. The hollow body has an inlet for the flow of blood into the hollow body in an inflow direction which is essentially parallel to the rotation axis, and an outlet for the outflow of the blood out of the hollow body in an outflow direction which is offset to the rotation axis of the impeller to produce a non-zero outflow angle (?) between the inflow direction and the outflow direction. A total artificial heart can be formed from two such blood pumps.Type: GrantFiled: November 8, 2010Date of Patent: July 19, 2016Assignee: Berlin Heart GmbHInventors: Hans-Erhard Peters, Joerg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt