Patents Assigned to Circulite, Inc.
  • Patent number: 10518011
    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: November 2, 2017
    Date of Patent: December 31, 2019
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 10449274
    Abstract: A system for facilitating fluid connection between cannulae and a blood pump. The system includes a cannula having proximal and distal ends. The distal end of the cannula adapted to be in fluid communication with the circulatory system. The proximal end of the cannula configured to couple to an inlet of the blood pump. The system further includes a tunneling device configured to be inserted into a body of a patient to direct the proximal end of the cannula adjacent to the inlet for connection thereto. The cannula further includes a first connecting structure. The tunneling device further includes a second connecting structure. The first and second connecting structures are selectively engageable to allow connection and disconnection between the cannula and tunneling device.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: October 22, 2019
    Assignee: CircuLite, Inc.
    Inventors: Bryan P. Fritz, Robert C. Farnan, Andrew J. Dusbabek, Oliver Marseille, Murat Camkiran, Grant Thompson, Scott A. Olson
  • Patent number: 10350384
    Abstract: A cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The cannula assembly includes a flexible cannula body having a proximal end and a distal end with a receiving portion, and a transseptal tip having a distal end and a proximal end with an engaging portion. First and second anchors are coupled to the transseptal tip and configured to be deployed from a contracted state to an expanded state. The engaging portion of the transseptal tip is operable to removably engage the receiving portion of the flexible cannula body in vivo.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 16, 2019
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
  • Patent number: 10342913
    Abstract: A cannula for moving fluids between a pump and the circulatory system of a patient. The cannula includes a liner having an intermediate portion between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions. At least the intermediate portion of the liner is constructed from a tissue in-growth material for supporting the growth of endothelial cells. A jacket surrounds at least part of the liner.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: July 9, 2019
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille
  • Patent number: 10342905
    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: Grant
    Filed: September 4, 2013
    Date of Patent: July 9, 2019
    Assignee: CircuLite, Inc.
    Inventors: Wolfgang Kerkhoffs, Oliver Marseille, Michael Martin, Robert C. Farnan, John P. Budris, J. Christopher Flaherty
  • Patent number: 10265501
    Abstract: A malleable cannula (50) for fluidically coupling with an anatomical structure includes a flexible cannula body wall (64) having a proximal end (68), a distal end (70), and a lumen (72) extending longitudinally between the proximal end (68) and the distal end (70). The proximal end (68) defines a first opening (80) to the lumen (72) and the distal end (70) defining a second opening (82) to the lumen (72). A channel is defined by a portion of the cannula body wall and extends longitudinally from the distal end (70) toward the proximal end (68). The channel has a first end oriented toward the proximal end of the cannula body wall. A malleable member (100) is provided within the channel and is fixedly connected to the cannula body wall (64) at the first end of the channel. The malleable member (100) is configured to assume and maintain a formed shape of the cannula body wall (64).
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: April 23, 2019
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Arielle Drummond
  • Patent number: 10213536
    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: Grant
    Filed: September 30, 2013
    Date of Patent: February 26, 2019
    Assignee: CircuLite, Inc.
    Inventors: Wolfgang Kerkhoffs, Ellen Keysselitz, J. Christopher Flaherty, Josef Weigand
  • Patent number: 10136893
    Abstract: An endovascular anastomotic connector and method of using the same. The endovascular anastomotic connector includes a vascular conduit and a supply conduit. The vascular conduit has proximal and distal ends that reside within a vascular structure. The supply conduit extends at an angle from the vascular conduit. The proximal end of the supply conduit is configured to be attached to an auxiliary device.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: November 27, 2018
    Assignee: CircuLite, Inc.
    Inventor: Robert C. Farnan
  • Patent number: 9993587
    Abstract: A system for facilitating fluid connection between cannulae and a blood pump. The system includes a cannula having a distal end adapted to be in fluid communication with the circulatory system and a proximal end configured to couple to an inlet of the blood pump. Further included is a tunneling device configured to be inserted into a body of a patient to direct the proximal end of the cannula adjacent to the inlet and including a second connecting structure. Further included is a plug which has a first plug part and a second plug part. The first plug part includes a second connecting structure, the first and second connecting structures being selectively engageable. The second plug part is configured to be inserted in the proximal end of the cannula. The first and second plug parts are selectively disengageable to allow in situ disconnection between the cannula and tunneling device.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: June 12, 2018
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Brad Aurilia, Cesar Gomez
  • Publication number: 20180117228
    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: November 2, 2017
    Publication date: May 3, 2018
    Applicant: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 9901667
    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: Grant
    Filed: January 17, 2017
    Date of Patent: February 27, 2018
    Assignee: CircuLite, Inc.
    Inventors: Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 9861728
    Abstract: A system for drawing blood from a heart of a patient, includes a blood pump, an outflow cannula and a flexible cannula assembly. The cannula assembly further includes a flexible cannula body including a proximal end, a distal end, an inner wall defining a lumen, and an outer wall. A tip is coupled with the distal end of the cannula body, and an anchor is coupled to the tip. The anchor is configured to engage an internal structure of the heart and resists movement of the cannula assembly in at least one direction along the flexible cannula body. A ring member is configured to be coupled to the heart wall and is positioned at least partially around the outer wall of the cannula body proximally relative to the tip. The ring member is further configured to provide hemostasis between the heart wall and the cannula body.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 9, 2018
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Robert G. Hudgins, John Dockter
  • Patent number: 9841013
    Abstract: A test controller and method to operate a rotary motor of a pump are provided. The test controller includes a test speed circuit electrically coupled to, but detachable from, the pump and being configured to apply at least one signal to the pump motor to cause the pump motor to rotate at a predetermined test speed and/or for a predetermined test time. An actuator selectively activates the test speed circuit to operate the pump motor at the predetermined test speed and/or for the predetermined test time. The method includes electrically coupling the test controller to the pump and, in response to selective activation of the actuator, selectively activating the test speed circuit to apply at least one signal to the pump motor to operate the pump motor at a predetermined test speed and/or for a predetermined test time. The method further includes detaching the test controller from the pump.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: December 12, 2017
    Assignee: CircuLite, Inc.
    Inventors: Kirk A. Lehmann, Oliver K. Marseille, Christian W. Vohburger
  • Patent number: 9808564
    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: December 28, 2016
    Date of Patent: November 7, 2017
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
  • Patent number: 9801987
    Abstract: A bifurcated cannula for directing blood into the arterial system. The bifurcated cannula including an ingress channel and first and second egress channels. The first egress channel directs a first portion of the blood entering the bifurcated cannula into the arterial system in a first direction. The second egress channel directs a second portion of the blood entering the bifurcated cannula into the arterial system in a direction that opposes the first direction.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: October 31, 2017
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, John P. Budris
  • Patent number: 9782559
    Abstract: A malleable cannula for fluidically coupling with an anatomical structure includes a flexible cannula body wall having a proximal end, a distal end, and a lumen extending longitudinally between the proximal end and the distal end. The proximal end defines a first opening to the lumen and the distal end defining a second opening to the lumen. A channel is defined by a portion of the cannula body wall and extends longitudinally from the distal end toward the proximal end. The channel has a first end oriented toward the proximal end of the cannula body wall. A malleable member is provided within the channel and is fixedly connected to the cannula body wall at the first end of the channel. The malleable member is configured to assume and maintain a formed shape of the cannula body wall.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: October 10, 2017
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Arielle Drummond
  • Patent number: 9784278
    Abstract: A device for pumping blood, includes a housing having a distal end adapted to be coupled to a catheter, a proximal end having an outlet, and a tubular body extending between the distal and proximal ends along an axis. A rotor is rotatably disposed within the housing. A first magnetic bearing is operative to levitate the rotor along the axis within the housing. A second magnetic bearing controls a rotational frequency of the rotor. A third magnetic bearing controls a radial position of the rotor.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: October 10, 2017
    Assignee: CircuLite, Inc.
    Inventors: Bryan Patrick Fritz, Martin David Simon
  • Patent number: 9750866
    Abstract: A cannula for moving fluids between a pump and the circulatory system of a patient. The cannula includes a liner having an intermediate portion between a proximal portion and a distal portion, and a lumen extending between the proximal and distal portions. At least the intermediate portion of the liner is constructed from a tissue in-growth material for supporting the growth of endothelial cells. A jacket surrounds at least part of the liner.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: September 5, 2017
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Oliver Marseille
  • Patent number: 9724500
    Abstract: A by-pass shunt for use with a bodily fluid pump. The by-pass shunt includes an inflow conduit, an outflow conduit, and an intermediate conduit fluidically coupling the inflow and outflow conduits. A flow restrictor is operably coupled to a portion of the intermediate conduit and is configured to reduce a fluid flow from the outflow conduit, through the intermediate conduit, and into the inflow conduit.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: August 8, 2017
    Assignee: CircuLite, Inc.
    Inventors: Robert C. Farnan, Bryan Fritz, Yun Yi
  • Patent number: 9717830
    Abstract: A system and method of drawing blood from the heart of a patient. The system includes a blood pump, an outflow cannula, and a flexible cannula assembly. The flexible cannula assembly includes a cannula body, a tip, and first and second anchors. The cannula body includes a proximal end coupled to the inlet of the blood pump, a distal end including a first locking element coupled to the tip. The first anchor has a first plurality of arms and is coupled to the tip and adapted to engage the internal surface of the heart wall. The second anchor includes a second plurality of arms and a second locking element and is slidably positioned on the outer wall of the cannula body and adapted to engage the first locking element of the distal end of the cannula body to couple the second anchor to the external surface of the heart wall.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: August 1, 2017
    Assignee: CircuLite, Inc.
    Inventor: Robert C. Farnan