Patents Assigned to Acorn Cardiovascular, Inc.
  • Publication number: 20070208211
    Abstract: A method and device are disclosed for treating congestive heart disease. The material of the device is secured to the heart proximate the septal wall. The material covering the ventricles may or may not have the same tension and or compliance. The device can be constructed as a unitary “jacket” that is slipped over the apex of the heart. Alternately, the device implanted as one, two or more separate components. In one embodiment, the material covers both the left and right ventricles. In another embodiment, the material covers only one ventricle. The device may include at least one adjustment mechanism configured to adjust the tension of the material.
    Type: Application
    Filed: May 7, 2007
    Publication date: September 6, 2007
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: James Shapland, Clifton Alferness, Donald Palme, Michael Girard, Donald Rohrbaugh
  • Publication number: 20070208214
    Abstract: A device for delivery of a cardiac support device for treating cardiac disease of a heart includes a multistage deployment mechanism and an actuating mechanism for controlling the positions of the deployment mechanism. The deployment mechanism is operable to change between a retracted state and an extended state, and includes a plurality of independent stages, including, in one embodiment, a first stage including a guide structure for location adjacent a portion of the patient's heart when in the extended state. A second stage is movably coupled to the first stage, and is guided by the guide structure between the retracted and extended states. The second stage further releasably engages and supports the cardiac support device and positions the cardiac support device at the desired implantation location, guided by the guide structure of the stage. In some embodiments, the deployment mechanism may include additional stages.
    Type: Application
    Filed: March 3, 2006
    Publication date: September 6, 2007
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Aaron J. Hjelle, Paul A. Pignato, Robert G. Walsh, William E. Cohn, Ann Margaret Thomas
  • Patent number: 7261684
    Abstract: The present disclosure is directed to a cardiac reinforcement device (CRD) and method for the treatment of cardiomyopathy. The CRD provides for reinforcement of the walls of the heart by constraining cardiac expansion, beyond a predetermined limit, during diastolic expansion of the heart. A CRD of the invention can be applied to the epicardium of the heart to locally constrain expansion of the cardiac wall or to circumferentially constrain the cardiac wall during cardiac expansion.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 28, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Patent number: 7255674
    Abstract: The present disclosure is directed to a cardiac reinforcement device (CRD) and method for the treatment of cardiomyopathy. The CRD provides for reinforcement of the walls of the heart by constraining cardiac expansion, beyond a predetermined limit, during diastolic expansion of the heart. A CRD of the invention can be applied to the epicardium of the heart to locally constrain expansion of the cardiac wall or to circumferentially constrain the cardiac wall during cardiac expansion.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 14, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Patent number: 7252632
    Abstract: A cardiac constraint device comprising a jacket of biological compatible material and an adjustment member. The jacket is adapted to be secured to the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole. The adjustment mechanism is configured to alter the internal volume defined by the jacket after the jacket is secured to the heart. The invention also provides a method for treating cardiac disease.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: August 7, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: J. Edward Shapland, Robert G. Walsh, John David Dockter, John C. Vanden Hoek
  • Patent number: 7235042
    Abstract: A method for applying a cardiac support device to a heart of a mammal includes surgically accessing a heart, providing a cardiac support device including a jacket, and positioning the jacket around at least a portion of the heart by applying a pulling force to the jacket. The step of positioning the jacket can include using a tool from a position superior to the heart to pull the jacket onto the heart. One device for placing a cardiac support jacket onto the heart includes first and second tubular walls. The second tubular wall is oriented within the first tubular wall and against an internal surface of the first tubular wall. The second tubular wall includes a plurality of grooves and has an open interior volume to hold the cardiac support jacket. Another device for placing a cardiac support jacket onto the heart includes a tubular wall having a plurality of lumens extending between opposite ends of the tubular wall.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: June 26, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: John Vanden Hoek, Jody Rivers, John David Dockter
  • Patent number: 7214181
    Abstract: A method and device are disclosed for treating congestive heart disease. The material of the device is secured to the heart proximate the septal wall. The material covering the ventricles may or may not have the same tension and or compliance. The device can be constructed as a unitary “jacket” that is slipped over the apex of the heart. Alternately, the device implanted as one, two or more separate components. In one embodiment, the material covers both the left and right ventricles. In another embodiment, the material covers only one ventricle. The device may include at least one adjustment mechanism configured to adjust the tension of the material.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: May 8, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: J. Edward Shapland, Clif Alferness, Donald Palme, Michael Girard, Donald Rohrbaugh
  • Patent number: 7166071
    Abstract: The present disclosure is directed to a cardiac reinforcement device (CRD) and method for the treatment of cardiomyopathy. The CRD provides for reinforcement of the walls of the heart by constraining cardiac expansion, beyond a predetermined limit, during diastolic expansion of the heart. A CRD of the invention can be applied to the epicardium of the heart to locally constrain expansion of the cardiac wall or to circumferentially constrain the cardiac wall during cardiac expansion.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: January 23, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Patent number: 7163507
    Abstract: The present disclosure is directed to a cardiac reinforcement device (CRD) and method for the treatment of cardiomyopathy. The CRD provides for reinforcement of the walls of the heart by constraining cardiac expansion, beyond a predetermined limit, during diastolic expansion of the heart. A CRD of the invention can be applied to the epicardium of the heart to locally constrain expansion of the cardiac wall or to circumferentially constrain the cardiac wall during cardiac expansion.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: January 16, 2007
    Assignee: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Publication number: 20070004962
    Abstract: A cardiac support device comprising a jacket of flexible and biocompatible material having a first axis for alignment generally parallel to a longitudinal axis of a patient's heart and a second axis that is transverse to the first axis. The material exhibits an amount of expansion in response to a force applied to the material along the first axis that is different than an amount of expansion in response to the force applied to the material along the second axis.
    Type: Application
    Filed: August 31, 2006
    Publication date: January 4, 2007
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton Alferness, Jai Raman, John Power
  • Patent number: 7153258
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: December 26, 2006
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Publication number: 20060235265
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Application
    Filed: June 12, 2006
    Publication date: October 19, 2006
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton Alferness, Jai Raman, John Power
  • Publication number: 20060155165
    Abstract: A cardiac constraint jacket is formed of flexible material defining a volume between an open upper end and a lower end. The jacket is dimensioned for an apex of a patient's heart to be inserted into the volume through the open upper end and for the jacket to be slipped over the heart. A delivery device is used to place the jacket on the heart. The delivery device includes a plurality of attachment locations. Each of the attachment locations is releasably secured to separate positions surrounding a periphery of the open upper end of the jacket. The delivery device also includes a control arrangement which is selectively movable between an open position and a closed position. The control arrangement is connected to the attachment locations such that the attachment locations are in a compact array urging the open upper end of the jacket into a collapsed configuration when the control member is in the closed position.
    Type: Application
    Filed: March 10, 2006
    Publication date: July 13, 2006
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: John Vanden Hoek, Jody Rivers
  • Publication number: 20060149122
    Abstract: A method and device are disclosed for treating congestive heart disease. The material of the device is secured to the heart proximate the septal wall. The material covering the ventricles may or may not have the same tension and or compliance. The device can be constructed as a unitary “jacket” that is slipped over the apex of the heart. Alternately, the device implanted as one, two or more separate components. In one embodiment, the material covers both the left and right ventricles. In another embodiment, the material covers only one ventricle. The device may include at least one adjustment mechanism configured to adjust the tension of the material.
    Type: Application
    Filed: January 24, 2006
    Publication date: July 6, 2006
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Edward Shapland, Clif Alferness, Donald Palme, Michael Girard, Donald Rohrbaugh
  • Publication number: 20060111607
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Application
    Filed: January 10, 2006
    Publication date: May 25, 2006
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton Alferness, Jai Raman, John Power
  • Patent number: 7025719
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 11, 2006
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Patent number: 7022064
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: April 4, 2006
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Patent number: 6997865
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: February 14, 2006
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Publication number: 20050228217
    Abstract: A jacket of biological compatible material has an internal volume dimensioned for an apex of the heart to be inserted into the volume and for the jacket to be slipped over the heart. The jacket has a longitudinal dimension between upper and lower ends sufficient for the jacket to surround a lower portion of the heart with the jacket surrounding a valvular annulus of the heart and further surrounding the lower portion to cover at least the ventricular lower extremities of the heart. The jacket is adapted to be secured to the heart with the jacket surrounding at least the valvular annulus and the ventricular lower extremities. The jacket is adjustable on the heart to snugly conform to an external geometry of the heart and assume a maximum adjusted volume for the jacket to constrain circumferential expansion of the heart beyond the maximum adjusted volume during diastole and to permit unimpeded contraction of the heart during systole.
    Type: Application
    Filed: June 3, 2005
    Publication date: October 13, 2005
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton Alferness, Donald Rohrbaugh, J. Shapland, Michael Girard, Donald Palme, James Cox
  • Patent number: 6951534
    Abstract: A highly compliant and elastic cardiac support device is provided. The device is constructed from a biocompatible material is applied to an external surface of a heart. The device can be used to resist dilatation of the heart, to provide acute wall support, or to enhance reduction in the size of the heart using stored potential energy, without interfering with systolic contraction.
    Type: Grant
    Filed: June 7, 2002
    Date of Patent: October 4, 2005
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Michael J. Girard, J. Edward Shapland, Donald F. Palme, II