Patents by Inventor Wolfgang Kerkhoffs

Wolfgang Kerkhoffs 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).

  • Publication number: 20150335804
    Abstract: The invention relates to a blood pump made of titanium with a measuring device for determining flow based on acoustic flow measurement methods and a blood pump with a temperature sensor and/or a pressure sensor, and a system with a blood pump and an inlet cannula and/or an outlet connector and a method for producing a blood pump with a measuring device.
    Type: Application
    Filed: September 25, 2013
    Publication date: November 26, 2015
    Applicant: CIRCULITE GMBH
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Ellen Keysselitz
  • Patent number: 9132216
    Abstract: A cannula for insertion through a biologic tissue. The cannula includes a shaft having proximal and distal end portions with a lumen therebetween. The cannula further includes a tip having a proximal end portion, a distal tip end, and a lumen therebetween. The proximal end portion of the tip is secured to the distal end portion of the shaft so that the lumen of the tip is in fluid communication with the lumen of the shaft. The tip includes an opening that extends proximally relative to the distal tip end to permit the flow of fluid into the lumen of the tip even in the event that the distal tip end becomes obstructed.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 15, 2015
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20150250933
    Abstract: An implantable connector assembly (14) for communicating an element to an implantable device (12) within a patient (20) comprises a plug (16), a receptacle (18), and a pair of communication structures (72, 108). The plug (16) includes a plunger body (64). The receptacle (18) includes a sleeve (98) and a stopper (114). The sleeve (98) defines an opening (104), and the stopper (114) is resiliently mounted within the sleeve (98) to cover and fluidly seal the opening (104). The pair of communication structures (72, 108) is positioned respectively on the plunger body (64) and the sleeve (98). One of the communication structures (72, 108) connects to a source and the other communication structure (108, 72) connects to the implantable device (12). The plunger body (64) inserts into the sleeve (98) to displace the stopper (114) and couple the pair of communication structures (72, 108) for communication of the element therebetween.
    Type: Application
    Filed: September 30, 2013
    Publication date: September 10, 2015
    Applicant: CIRCULITE, INC.
    Inventors: Wolfgang Kerkhoffs, Ellen Keysselitz, J. Christopher Flaherty
  • Publication number: 20140303427
    Abstract: A system for pumping blood in a patient comprises multiple components including a rotational drive assembly; a fluid drive element; a housing, an inflow cannula assembly and an outflow graft assembly. The inflow cannula assembly comprises an inflow conduit and an inflow connector. The outlet graft assembly comprises an outflow conduit and an outflow connector. The housing surrounds the fluid drive element and comprises an inflow port and an outflow port. The inflow conduit comprises a first end operably attachable to the inflow port and a second end fluidly connectable to a source of oxygenated blood. The outflow conduit comprises a first end operably attachable to the outflow port and a second end fluidly connectable to a blood vessel. The inflow connector operably connects the inflow conduit to the inflow port. The outflow connector operably connects the outflow conduit to the outflow port.
    Type: Application
    Filed: April 8, 2014
    Publication date: October 9, 2014
    Applicant: CIRCULITE, INC.
    Inventors: Wolfgang Kerkhoffs, Ellen Keysselitz, Oliver Marseille
  • Publication number: 20140303426
    Abstract: An implantable blood pump, a blood pump system, and a method for data transfer in a blood pump system. By integrating the electronic components into the blood pump, they are located in the direct vicinity of corresponding component parts. An accumulation of heat is prevented by arranging the electronics on blood-guiding components of the blood pump, in particular on the cannula. This results in efficient cooling of the electronic components.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 9, 2014
    Applicant: CIRCULITE, INC.
    Inventors: Wolfgang Kerkhoffs, Oliver Marseille, J. Christopher Flaherty
  • Publication number: 20140249357
    Abstract: A cannula for insertion through a biologic tissue. The cannula includes a shaft having proximal and distal end portions with a lumen therebetween. The cannula further includes a tip having a proximal end portion, a distal tip end, and a lumen therebetween. The proximal end portion of the tip is secured to the distal end portion of the shaft so that the lumen of the tip is in fluid communication with the lumen of the shaft. The tip includes an opening that extends proximally relative to the distal tip end to permit the flow of fluid into the lumen of the tip even in the event that the distal tip end becomes obstructed.
    Type: Application
    Filed: May 16, 2014
    Publication date: September 4, 2014
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 8768487
    Abstract: A cannula for insertion through a biologic tissue. The cannula includes a shaft having proximal and distal end portions with a lumen therebetween. The cannula further includes a tip having a proximal end portion, a distal tip end, and a lumen therebetween. The proximal end portion of the tip is secured to the distal end portion of the shaft so that the lumen of the tip is in fluid communication with the lumen of the shaft. The tip includes an opening that extends proximally relative to the distal tip end to permit the flow of fluid into the lumen of the tip even in the event that the distal tip end becomes obstructed.
    Type: Grant
    Filed: February 11, 2011
    Date of Patent: July 1, 2014
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20140073837
    Abstract: A fluid flow system for a patient is disclosed. A fluid drive module includes a fluid drive element, a housing, and a chamber located between the housing and the fluid drive element. A controller or control module modifies the speed of the fluid drive element during use, such as to prevent thrombus or otherwise improve flow conditions. Methods of alternating fluid flow are also provided.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 13, 2014
    Applicant: CIRCULITE, INC.
    Inventors: Wolfgang Kerkhoffs, Oliver Marseille, Michael Martin, Robert C. Farnan, John P. Budris, J. Christopher Flaherty
  • Patent number: 8465410
    Abstract: A supplemental blood flow system for assisting with blood circulation in a patient. The system includes a supplemental blood flow device implantable in the patient and a controller for directing electrical power to the supplemental blood flow device and controlling the flow rate of blood through the device. The controller includes first and second power inlets and a power outlet. The power outlet is adapted to be coupled to an electrical line leading to the supplemental blood flow device. A portable programming module may be coupled to at least one of the first and second power inlets and operable to allow pump operating parameters stored in the controller to be changed according to the needs of the patient.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: June 18, 2013
    Assignee: Circulite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher
  • Patent number: 8333686
    Abstract: An insertion device for inserting a cannula through tissue generally comprises an inner shaft, a tip member coupled to a distal end portion of the inner shaft, a hollow outer shaft slidably received over the inner shaft, and a compressible member received over the inner shaft between the tip member and the outer shaft. The compressible member is configured to be received in a lumen of the cannula, and the inner shaft is movable relative to the outer shaft along an axial direction to compress the compressible member between the tip member and the outer shaft so that the compressible member expands in a generally radially outward direction. The radial expansion of the compressible member releasably secures the insertion device to the cannula.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: December 18, 2012
    Assignee: Circulite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20120172657
    Abstract: A supplemental blood flow system for assisting with blood circulation in a patient. The system includes a supplemental blood flow device implantable in the patient and a controller for directing electrical power to the supplemental blood flow device and controlling the flow rate of blood through the device. The controller includes first and second power inlets and a power outlet. The power outlet is adapted to be coupled to an electrical line leading to the supplemental blood flow device. A portable programming module may be coupled to at least one of the first and second power inlets and operable to allow pump operating parameters stored in the controller to be changed according to the needs of the patient.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: CIRCULITE, INC.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher
  • Patent number: 8157720
    Abstract: A supplemental blood flow system for assisting with blood circulation in a patient. The system includes a supplemental blood flow device implantable in the patient and a controller for directing electrical power to the supplemental blood flow device and controlling the flow rate of blood through the device. The controller includes first and second power inlets and a power outlet. The power outlet is adapted to be coupled to an electrical line leading to the supplemental blood flow device. A portable programming module may be coupled to at least one of the first and second power inlets and operable to allow pump operating parameters stored in the controller to be changed according to the needs of the patient.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: April 17, 2012
    Assignee: CircuLite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher
  • Publication number: 20110196190
    Abstract: A cannula for insertion through a biologic tissue. The cannula includes a shaft having proximal and distal end portions with a lumen therebetween. The cannula further includes a tip having a proximal end portion, a distal tip end, and a lumen therebetween. The proximal end portion of the tip is secured to the distal end portion of the shaft so that the lumen of the tip is in fluid communication with the lumen of the shaft. The tip includes an opening that extends proximally relative to the distal tip end to permit the flow of fluid into the lumen of the tip even in the event that the distal tip end becomes obstructed.
    Type: Application
    Filed: February 11, 2011
    Publication date: August 11, 2011
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20110137234
    Abstract: A blood circulation assist system comprising an inflow cannula having a lumen and an insertion device configured to be received therein and to facilitate insertion of a portion of the inflow cannula into a heart chamber. The insertion device includes a shaft having distal and proximal end portions and a plurality of lumens. A first lumen is configured to receive a guidewire and a second lumen is configured to receive a pressurized fluid. A tip connected to the distal end portion of the shaft is configured for insertion into the heart chamber. The tip has a hollow interior communicating with the first shaft lumen. An inflatable member is coupled to the distal end portion of the shaft and includes a hollow interior in fluid communication with the second shaft lumen. The inflatable member is movable between deflated and inflated configurations for releasably securing the insertion device to the inflow cannula.
    Type: Application
    Filed: February 7, 2011
    Publication date: June 9, 2011
    Applicant: CIRCULITE, INC.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 7905823
    Abstract: A blood circulation assist system comprising an inflow cannula having a lumen and an insertion device configured to be received therein and to facilitate insertion of a portion of the inflow cannula into a heart chamber. The insertion device includes a shaft having distal and proximal end portions and a plurality of lumens. A first lumen is configured to receive a guidewire and a second lumen is configured to receive a pressurized fluid. A tip connected to the distal end portion of the shaft is configured for insertion into the heart chamber. The tip has a hollow interior communicating with the first shaft lumen. An inflatable member is coupled to the distal end portion of the shaft and includes a hollow interior in fluid communication with the second shaft lumen. The inflatable member is movable between deflated and inflated configurations for releasably securing the insertion device to the inflow cannula.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: March 15, 2011
    Assignee: Circulite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20090182188
    Abstract: Devices, systems and methods for establishing a blood flow conduit between a chamber in a heart of a patient and a remote location. A blood inflow cannula having an outer surface and proximal and distal end portions. The distal end portion is configured for insertion into the chamber of the heart. First and second anchor elements have respective maximum width dimensions extending outwardly from the outer surface of the cannula. The first anchor element is positioned more distally than the second anchor element defining a tissue receiving space therebetween. The maximum width dimension of the first anchor element may be larger than the maximum width dimension of the second anchor element in use. The first anchor element is configured to be positioned inside the heart chamber and the second anchor element is configured to be positioned outside the heart chamber with heart tissue held in the tissue receiving space therebetween.
    Type: Application
    Filed: February 25, 2009
    Publication date: July 16, 2009
    Applicant: CircuLite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20080076959
    Abstract: A blood circulation assist system comprising an inflow cannula having a lumen and an insertion device configured to be received therein and to facilitate insertion of a portion of the inflow cannula into a heart chamber. The insertion device includes a shaft having distal and proximal end portions and a plurality of lumens. A first lumen is configured to receive a guidewire and a second lumen is configured to receive a pressurized fluid. A tip connected to the distal end portion of the shaft is configured for insertion into the heart chamber. The tip has a hollow interior communicating with the first shaft lumen. An inflatable member is coupled to the distal end portion of the shaft and includes a hollow interior in fluid communication with the second shaft lumen. The inflatable member is movable between deflated and inflated configurations for releasably securing the insertion device to the inflow cannula.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 27, 2008
    Applicant: CIRCULITE, INC.
    Inventors: Robert Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20080076960
    Abstract: An insertion device for inserting a cannula through tissue generally comprises an inner shaft, a tip member coupled to a distal end portion of the inner shaft, a hollow outer shaft slidably received over the inner shaft, and a compressible member received over the inner shaft between the tip member and the outer shaft. The compressible member is configured to be received in a lumen of the cannula, and the inner shaft is movable relative to the outer shaft along an axial direction to compress the compressible member between the tip member and the outer shaft so that the compressible member expands in a generally radially outward direction. The radial expansion of the compressible member releasably secures the insertion device to the cannula.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 27, 2008
    Applicant: CIRCULITE, INC.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs
  • Publication number: 20070197854
    Abstract: A supplemental blood flow system for assisting with blood circulation in a patient. The system includes a supplemental blood flow device implantable in the patient and a controller for directing electrical power to the supplemental blood flow device and controlling the flow rate of blood through the device. The controller includes first and second power inlets and a power outlet. The power outlet is adapted to be coupled to an electrical line leading to the supplemental blood flow device. A portable programming module may be coupled to at least one of the first and second power inlets and operable to allow pump operating parameters stored in the controller to be changed according to the needs of the patient.
    Type: Application
    Filed: January 26, 2007
    Publication date: August 23, 2007
    Applicant: CircuLite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher