Patents Assigned to Circulite, Inc.
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Patent number: 8460168Abstract: A transseptal cannula having a flexible cannula body, a left atrial anchor coupled to the distal end of the flexible cannula body, and a right atrial anchor operable to be attached to the left atrial anchor in vivo. The left and right atrial anchors are implanted and deployed separately. Delivery of the transseptal cannula to a heart tissue can include a low profile coaxial balloon catheter comprising a tube body including an inner member and an outer member surrounding the inner member and thereby creating an inflation channel between the inner and outer members, a hub coupled to the proximal portion of the tube body and including a fluid space in fluid communication with the inflation channel; and a balloon coupled to the distal portion of the tube body, wherein the balloon is in fluid communication with the inflation channel.Type: GrantFiled: March 9, 2010Date of Patent: June 11, 2013Assignee: Circulite, Inc.Inventor: Robert C. Farnan
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Patent number: 8394010Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.Type: GrantFiled: April 18, 2011Date of Patent: March 12, 2013Assignee: Circulite, Inc.Inventor: Robert C. Farnan
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Publication number: 20130060267Abstract: A surgical cannula system. The surgical cannula system includes a cannula having a proximal end, a distal end, and a lumen extending therebetween. A tissue attachment ring, being configured to be coupled to a biological tissue, includes a lumen extending therethrough. A locking mechanism has a first locking state, in which the cannula is configured to move with respect to the tissue attachment ring, and a second locking state, in which movement of the cannula with respect to the tissue attachment ring is resisted.Type: ApplicationFiled: September 4, 2012Publication date: March 7, 2013Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Arielle Drummond, Jerry Brightbill, Timothy Walter Robinson, Richard Wisdom, Jonathan O'Keefe, Richard Abraham, Sarah Kostanski, Bryan Fritz
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Patent number: 8343029Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.Type: GrantFiled: October 23, 2008Date of Patent: January 1, 2013Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8333687Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.Type: GrantFiled: April 18, 2011Date of Patent: December 18, 2012Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Patent number: 8333686Abstract: 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: GrantFiled: August 29, 2007Date of Patent: December 18, 2012Assignee: Circulite, Inc.Inventors: Oliver Marseille, Wolfgang Kerkhoffs
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Patent number: 8333727Abstract: An anastomotic connector comprising an endovascular component including a vascular conduit and a supply conduit and a cannula component. The vascular conduit has first and second ends that are configured to reside within a vascular structure. The supply conduit has proximal and distal ends, where the distal end fluidicly connects to the vascular conduit between the first and second ends. The cannula component, which also includes proximal and distal ends, is received by the supply conduit.Type: GrantFiled: August 31, 2010Date of Patent: December 18, 2012Assignee: Circulite, Inc.Inventor: Robert C. Farnan
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Patent number: 8308715Abstract: An apparatus and method for stabilizing a cannula to a vascular structure. The stabilizer includes a ring that circumferentially surrounds the cannula. Three or more struts extend distally from the ring and are outwardly-deflected by a first angle relative to a first axis that is parallel to a lengthwise central axis of the cannula. Each strut includes a contact pad that radially extends from the strut and is distally-deflected by a second angle relative to a second axis that is orthogonal to the first axis. Three or more arms extend proximally from the ring and each arm opposes one of the struts. The arms are inwardly-deflected by a third angle relative to the first axis. The stabilizer is configured to move relative to the cannula until the contact pads engage the vascular structure, causing the arms to engage and resist further movement of the stabilizer relative to the cannula.Type: GrantFiled: November 2, 2010Date of Patent: November 13, 2012Assignee: Circulite, Inc.Inventors: Robert C. Farnan, Oliver Marseille
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Publication number: 20120172657Abstract: 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: ApplicationFiled: March 14, 2012Publication date: July 5, 2012Applicant: CIRCULITE, INC.Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher
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Patent number: 8157720Abstract: 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: GrantFiled: January 26, 2007Date of Patent: April 17, 2012Assignee: CircuLite, Inc.Inventors: Oliver Marseille, Wolfgang Kerkhoffs, Oliver Schumacher
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Publication number: 20120004496Abstract: 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: ApplicationFiled: August 5, 2011Publication date: January 5, 2012Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Oliver Marseille
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Publication number: 20110200451Abstract: 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: ApplicationFiled: January 31, 2011Publication date: August 18, 2011Applicant: CIRCULITE, INC.Inventors: Kirk A. Lehmann, Oliver K. Marseille, Christian W. Vohburger
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Publication number: 20110196191Abstract: 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: ApplicationFiled: February 11, 2011Publication date: August 11, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Oliver Marseille
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Publication number: 20110196190Abstract: 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: ApplicationFiled: February 11, 2011Publication date: August 11, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
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Publication number: 20110190697Abstract: A vascular introducer having an expandable sheath. The sheath includes a balloon-expandable section and a self-expandable section, where the balloon-expandable section is distal to the self-expandable section. The distal balloon-expandable section is collapsible to decrease a diameter of the introducer for directing the introducer into a vasculature of a patient.Type: ApplicationFiled: November 19, 2010Publication date: August 4, 2011Applicant: CIRCULITE, INC.Inventor: Robert C. Farnan
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Publication number: 20110190567Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.Type: ApplicationFiled: April 18, 2011Publication date: August 4, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Scott A. Olson, Elizabeth Jung, Andrew J. Dusbabek, Robert G. Hudgins
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Publication number: 20110190707Abstract: A transseptal cannula assembly for directing blood from the heart of a patient and a minimally invasive method of implanting the same. The transseptal cannula assembly includes a flexible cannula body having proximal and distal portions with a lumen therebetween, a tip coupled to the distal portion of the flexible cannula body, and first and second anchors coupled to the tip. The anchors can be configured to be deployed from a contracted state to an expanded state and are configured to engage opposite sides of the heart tissue when in the expanded state. The anchors resist movement of the cannula assembly along a lengthwise central axis of the flexible cannula body.Type: ApplicationFiled: April 18, 2011Publication date: August 4, 2011Applicant: CIRCULITE, INC.Inventor: Robert C. Farnan
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Publication number: 20110137234Abstract: 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: ApplicationFiled: February 7, 2011Publication date: June 9, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Oliver Marseille, Wolfgang Kerkhoffs
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Publication number: 20110118668Abstract: An apparatus and method for stabilizing a cannula to a vascular structure. The stabilizer includes a ring that circumferentially surrounds the cannula. Three or more struts extend distally from the ring and are outwardly-deflected by a first angle relative to a first axis that is parallel to a lengthwise central axis of the cannula. Each strut includes a contact pad that radially extends from the strut and is distally-deflected by a second angle relative to a second axis that is orthogonal to the first axis. Three or more arms extend proximally from the ring and each arm opposes one of the struts. The arms are inwardly-deflected by a third angle relative to the first axis. The stabilizer is configured to move relative to the cannula until the contact pads engage the vascular structure, causing the arms to engage and resist further movement of the stabilizer relative to the cannula.Type: ApplicationFiled: November 2, 2010Publication date: May 19, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, Oliver Marseille
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Publication number: 20110112353Abstract: 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: ApplicationFiled: August 20, 2010Publication date: May 12, 2011Applicant: CIRCULITE, INC.Inventors: Robert C. Farnan, John P. Budris