Patents by Inventor Peter Nusser
Peter Nusser 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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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
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Patent number: 9364594Abstract: A blood pump having an axially tubular inlet, a tangential chamber adjoining the axial inlet and having a substantially radial outlet, with an axial guide body connected to the outlet and/or to the tangential chamber, an impeller supported on the guide body and having an inner surface facing the guide body and an outer surface as well as blading arranged on the outer surface. At least one part region of the guide body projects from the tangential chamber into the inlet, wherein at least one section of the stator transmitting a force onto the rotor is arranged in the part region. The impeller is supported by a hydrodynamic radial bearing in the radial direction.Type: GrantFiled: May 4, 2012Date of Patent: June 14, 2016Assignee: Berlin Heart GmbHInventors: Peter Nüsser, Georg Konstas
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Patent number: 9352077Abstract: A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.Type: GrantFiled: May 29, 2014Date of Patent: May 31, 2016Assignee: Berlin Heart GmbHInventors: Andreas Arndt, Kurt Graichen, Peter Nüsser
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Patent number: 9308304Abstract: 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: May 5, 2011Date of Patent: April 12, 2016Assignee: Berlin Heart GmbHInventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt, Leonid Choub
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Publication number: 20160030652Abstract: An implantable cable connection device is provided with a cable connector which can comprise several plug-in connection elements, to which in each case an implantable cable can be connected by way of a plug-in connection, where the cable connector is designed as a rigid body of a biocompatible material.Type: ApplicationFiled: April 4, 2014Publication date: February 4, 2016Inventors: Andreas ARNDT, Peter NÜSSER, Kim Peter WINTERWERBER
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Patent number: 9180234Abstract: A connecting element for connecting a blood pump or a cannula to a heart, the connecting element including a sealing element, which is designed to at least temporarily close an opening formed in the cardiac wall and to be opened via insertion of a preferably cylindrical object in the direction of an axis of the opening.Type: GrantFiled: October 31, 2012Date of Patent: November 10, 2015Assignee: Berlin Heart GmbHInventors: Manfred Göllner, Ulrich Tim Opfermann, Peter Nüsser, Andreas Arndt, Felix Von Winterfeld
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Publication number: 20140343352Abstract: A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.Type: ApplicationFiled: May 29, 2014Publication date: November 20, 2014Applicant: Berlin Heart GmbHInventors: Andreas Arndt, Kurt Graichen, Peter Nüsser
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Publication number: 20140288355Abstract: A connecting element for connecting a blood pump or a cannula to a heart, the connecting element including a sealing element, which is designed to at least temporarily close an opening formed in the cardiac wall and to be opened via insertion of a preferably cylindrical object in the direction of an axis of the opening.Type: ApplicationFiled: October 31, 2012Publication date: September 25, 2014Inventors: Manfred Göllner, Ulrich Tim Opfermann, Peter Nüsser, Andreas Arndt, Felix Von Winterfeld
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Publication number: 20140187852Abstract: 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: May 5, 2011Publication date: July 3, 2014Applicant: Berlin Heart GmbHInventors: Hans-Erhard Peters, Jörg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Amdt, Leonid Choub
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Publication number: 20140171727Abstract: A blood pump having an axially tubular inlet, a tangential chamber adjoining the axial inlet and having a substantially radial outlet, with an axial guide body connected to the outlet and/or to the tangential chamber, an impeller supported on the guide body and having an inner surface facing the guide body and an outer surface as well as blading arranged on the outer surface. At least one part region of the guide body projects from the tangential chamber into the inlet, wherein at least one section of the stator transmitting a force onto the rotor is arranged in the part region. The impeller is supported by a hydrodynamic radial bearing in the radial direction.Type: ApplicationFiled: May 4, 2012Publication date: June 19, 2014Applicant: Berlin Heart GbmHInventors: Peter Nüsser, Georg Konstas
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Patent number: 8747293Abstract: A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.Type: GrantFiled: August 1, 2008Date of Patent: June 10, 2014Assignee: Berlin Heart GmbHInventors: Andreas Arndt, Kurt Graichen, Peter Nüsser
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Publication number: 20120310036Abstract: 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: November 8, 2010Publication date: December 6, 2012Inventors: Hans-Erhard Peters, Joerg Müller, Kurt Graichen, Peter Nüsser, Manfred Göllner, Andreas Arndt
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Publication number: 20110160519Abstract: A rotational pump capable of running at a rotational speed (n) having a system for direct or indirect measurement of pressure difference or flow rate across the pump, wherein a control system is designed to calculate an index of pulsatility (PI) of the pressure difference or flow rate, estimating the gradient of PI with respect to the rotational speed (dPI/dn) and regulating the dPI/dn to a pre-defined set-point or regulating the pump in a way that the dPI/dn is minimal.Type: ApplicationFiled: August 1, 2008Publication date: June 30, 2011Inventors: Andreas Arndt, Kurt Graichen, Peter Nüsser
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Patent number: 7859156Abstract: The invention relates to a hard magnetic object and a method for adjusting a magnetic vector of a hard magnetic object. Therefore, the invention has the object, to provide a hard magnetic object and a method for its manufacture, which hard magnetic object has, without being influenced by an outside magnetic circuit, a desired resultant magnetic vector, which is in the frame of a predetermined tolerance range, and furthermore, that the hard magnetic object has a higher maximal energy density compared to the State of Art.Type: GrantFiled: September 17, 2007Date of Patent: December 28, 2010Assignee: Berlin Heart GmbHInventors: Peter Nüsser, Conrad Kauffeldt, Werner Neumann, Kurt Graichen, Andrcas Arndt
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Patent number: 7467929Abstract: A device for axially conveying fluids, wherein the conveyor part thereof is entirely magnetically borne and the radial bearing thereof is provided with sufficient rigidity and efficiently dampened, whereby problems encountered when passing through critical speeds and the disadvantageous effects of hydrodynamic and mechanical imbalance of the rotor are avoided. The magnetic bearing is combined with a hydrodynamic bearing.Type: GrantFiled: February 18, 2002Date of Patent: December 23, 2008Assignee: Berlin Heart GmbHInventors: Peter Nüsser, Johannes Mueller, Hans-Erhard Peters, Joerg Mueller, Werner Neumann, Kurt Graichen, Andreas Arndt
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Publication number: 20080051622Abstract: The invention relates to a hard magnetic object and a method for adjusting a magnetic vector of a hard magnetic object. Therefore, the invention has the object, to provide a hard magnetic object and a method for its manufacture, which hard magnetic object has, without being influenced by an outside magnetic circuit, a desired resultant magnetic vector, which is in the frame of a predetermined tolerance range, and furthermore, that the hard magnetic object has a higher maximal energy density compared to the State of Art.Type: ApplicationFiled: September 17, 2007Publication date: February 28, 2008Inventors: Peter Nusser, Conrad Kauffeldt, Werner Neumann, Kurt Graichen, Andreas Arndt
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Patent number: 7150711Abstract: Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.Type: GrantFiled: April 26, 2002Date of Patent: December 19, 2006Assignee: Berlin Heart AGInventors: Peter Nüsser, Johannes Müller, Frank Deus, Peter Göttel, Jan Hoffmann, Kurt Graichen, Andreas Arndt, Tobias Merkel
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Publication number: 20050019167Abstract: Method for controlling an assist pump for fluid delivery systems with pulsatile pressure. If for example a heart assist pump is driven with a constant number of revolutions, it is achieved, that the blood is also delivered through the assist pump, even when the heart chamber is in the decontraction phase. With the present method it is achieved, that an assist pump only acts supportingly in the pressure phase of the main pump, in such a way, that the pressure difference between the input side and the output side of the assist pump is continuously determined and the number of revolutions of the assist pump is controlled in such a way, that the determined pressure difference does not fall below a predetermined value and the rate of flow does not sink below zero.Type: ApplicationFiled: April 26, 2002Publication date: January 27, 2005Inventors: Peter Nusser, Johannes Muller, Frank Deus, Peter Gottel, Jan Hoffmann, Kurt Graichen, Andreas Arndt, Tobias Merkel
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Publication number: 20040189123Abstract: The invention relates to a hard magnetic object and a method for adjusting a magnetic vector of a hard magnetic object.Type: ApplicationFiled: September 24, 2003Publication date: September 30, 2004Inventors: Peter Nusser, Conrad Kauffeldt, Werner Neumann, Kurt Graichen, Andreas Arndt
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Patent number: 6742999Abstract: A delivery device for a single- or multiphase fluid having a tubular body for axially guiding the fluid, including a motor stator arranged outside the tubular body and a delivery element arranged within the tubular body, comprising a motor rotor. A rotor gap is formed between the delivery element and the hollow body for allowing the fluid to pass through. Mounting arrangements are fixedly disposed in axial direction on each side of the delivery element within the tubular body. Hub gaps are formed between the delivery element and the mounting arrangement. First permanent magnet bearing elements are disposed in the mounting arrangement and second permanent magnet bearing elements are disposed in the delivery element. The first and the second permanent magnet bearing elements functionally work together and are magnetized in axial direction and have opposite polarity. Position sensors associated with each of the first permanent magnet bearing elements and a stabilizer is disposed around the hollow body.Type: GrantFiled: December 31, 2001Date of Patent: June 1, 2004Assignees: Berlin Heart AG, Forschungszentrum Jülich GmbHInventors: Peter Nüsser, Johannes Müller, Hans-Erhard Peters