Patents Assigned to Acorn Cardiovascular, Inc.
  • Patent number: 6579226
    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: Grant
    Filed: August 3, 2001
    Date of Patent: June 17, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: John C. Vanden Hoek, Jody L. Rivers
  • Patent number: 6575921
    Abstract: A surgical tool for measuring a heart that includes a first and second handle member having proximal and distal ends and internal passageways that run lengthwise from the proximal end to the distal end, a flexible member that is cylindrically shaped with a marked proximal end that is larger in diameter than the unmarked distal end, a hinged region with a connection receiving portion on the first handle member and a connection portion on the second handle member, wherein the distal end of the flexible member passes through the internal passageway of the first handle member from the proximal end of the first handle member to the distal end of the first handle member, extends out, then enters into the distal end of the second handle member, passes through the internal passageway of the second handle member from the proximal end to the distal end of the second handle member.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 10, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: John Vanden Hoek, Jody Rivers
  • Patent number: 6572533
    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: August 17, 2000
    Date of Patent: June 3, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: J. Edward Shapland, Clif Alferness, Donald Palme, Michael Girard, Donald Rohrbaugh
  • Patent number: 6567699
    Abstract: A device for treating cardiac disease of a heart includes a jacket of flexible material defining a volume between an open upper end and a lower end. The jacket is dimensioned for an apex of the heart to be inserted into the volume through the open upper end and for the jacket to be slipped over the heart. The jacket is adapted to be secured to the heart with the jacket having portions disposed on opposite sides of the heart. The jacket is adjustable to snugly conform to an external geometry of the heart and to constrain circumferential expansion of the heart during diastole and permit substantially unimpeded contraction of the heart during systole. A first and a second grid of electrodes are carried on the jacket. The grids are disposed to be in overlying relation to individual ones of the opposite sides of the heart when the jacket is secured to the heart. The first and second grids are connectable to a source of a defibrillating waveform.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: May 20, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, James Edward Shapland
  • Patent number: 6564094
    Abstract: A device for treating cardiac disease is provided. The device includes biologically compatible material, an electrotherapy instrument, and a placement apparatus capable of capable of releasably securing a lead of the electrotherapy instrument to the biologically compatible material. In one embodiment, the biologically compatible material is a patch that is configured to be secured to the epicardial surface of the heart. In an alternate embodiment, the biologically compatible material is constructed as a jacket of flexible material designed to be secured to the heart. Examples of electrotherapy instruments include a cardiac pacing device and a defibrillating device.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 13, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clif Alferness, J. Edward Shapland, Michael Girard
  • Patent number: 6544168
    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: February 25, 2002
    Date of Patent: April 8, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Patent number: 6537203
    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: May 4, 2000
    Date of Patent: March 25, 2003
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Publication number: 20030045776
    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: October 23, 2002
    Publication date: March 6, 2003
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Donald G. Rohrbaugh, J. Edward Shapland, Michael J. Girard, Donald F. Palme, James E. Cox
  • Publication number: 20030028077
    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: September 20, 2002
    Publication date: February 6, 2003
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
  • Patent number: 6482146
    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: June 13, 2000
    Date of Patent: November 19, 2002
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, Donald G. Rohrbaugh, J. Edward Shapland, Michael J. Girard, Donald F. Palme, II, James E. Cox
  • Publication number: 20020151950
    Abstract: This invention relates to implantable heart sack that can be equipped with pacemaker leads and/or defibrillation leads for the treatment of cardiomyopathy, hypertrophic cardiomyopathy, tachycardia, bradycardia, ventricular fibrillation, atrial fibrillation etc. The hear sack was prepared from biocompatible, biostable, implantable polyetherurethane, polycarbonateurethane, silicone, polysiloxaneurethane, polyfluoroethylene, or hydrogenated poly(styrene-butadiene) copolymer. The heart sack is equipped with attached sutures to make it easier to attach onto the heart. The heart sack can be made semipermeable or perforated to have numerous holes. The heart sack can be reinforce with fiber or filament. Ordinary pacemaker leads can be attached to the inner side of the heart sack.
    Type: Application
    Filed: June 13, 2001
    Publication date: October 17, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventor: Yuzi Okuzumi
  • Publication number: 20020151766
    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: Application
    Filed: June 13, 2002
    Publication date: October 17, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: J. Edward Shapland, Robert G. Walsh, John David Dockter
  • Publication number: 20020133055
    Abstract: A pouch to at least partly enclose a heart (1), the wall of the pouch (2) being elastic. The purpose of the pouch is to enclose at least part of a heart (1) and to oppose excessive dilation of the heart (1) that might be due to infectious disease of the heart muscle, for instance a viral infection or an autoimmune process. In many cases the use of such a pouch (2) may circumvent the need for a heart transplant.
    Type: Application
    Filed: May 7, 2002
    Publication date: September 19, 2002
    Applicant: Acorn Cardiovascular Inc.
    Inventor: Hans Haindl
  • Publication number: 20020111567
    Abstract: A surgical tool for measuring a heart that includes two handle members, and a flexible member. The handle members are configured with internal passageways to allow the flexible members to pass through the handle members. The flexible member or the first handle member are configured to anchor the flexible member in a first handle member. This can either be accomplished by configuring the flexible member with an enlarged portion on one end or by configuring the flexible member in concert with the first handle member to anchor the elongate flexible member within an expanded region of the first handle member. The handle members can be configured for the construction of a hinged region that is easily hinged and unhinged.
    Type: Application
    Filed: February 9, 2001
    Publication date: August 15, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: John Vanden Hoek, Jody Rivers
  • Publication number: 20020103511
    Abstract: A device for treating cardiac disease of a heart includes a jacket of flexible material defining a volume between an open upper end and a lower end. The jacket is dimensioned for an apex of the heart to be inserted into the volume through the open upper end and for the jacket to be slipped over the heart. The jacket is adapted to be secured to the heart with the jacket having portions disposed on opposite sides of the heart. The jacket is adjustable to snugly conform to an external geometry of the heart and to constrain circumferential expansion of the heart during diastole and permit substantially unimpeded contraction of the heart during systole. A first and a second grid of electrodes are carried on the jacket. The grids are disposed to be in overlying relation to individual ones of the opposite sides of the heart when the jacket is secured to the heart. The first and second grids are connectable to a source of a defibrillating waveform.
    Type: Application
    Filed: January 30, 2002
    Publication date: August 1, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clifton A. Alferness, James Edward Shapland
  • Patent number: 6425856
    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: May 10, 2000
    Date of Patent: July 30, 2002
    Assignee: Acorn Cardiovascular, Inc.
    Inventors: J. Edward Shapland, Robert G. Walsh, John David Dockter
  • Publication number: 20020091296
    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: Application
    Filed: February 25, 2002
    Publication date: July 11, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventor: Clifton A. Alferness
  • Patent number: 6416459
    Abstract: A pouch to at least partly enclose a heart (1), the wall of the pouch (2) being elastic. The purpose of the pouch is to enclose at least part of a heart (1) and to oppose excessive dilation of the heart (1) that might be due to inflammatory disease of the heart muscle, for instance a viral infection or an autoimmune process. In many cases the use of such a pouch (2) may circumvent the need for a heart transplant.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: July 9, 2002
    Assignee: Acorn Cardiovascular Inc.
    Inventor: Hans Haindl
  • Publication number: 20020082647
    Abstract: A device for treating cardiac disease is provided. The device includes biologically compatible material, an electrotherapy instrument, and a placement apparatus capable of capable of releasably securing a lead of the electrotherapy instrument to the biologically compatible material. In one embodiment, the biologically compatible material is a patch that is configured to be secured to the epicardial surface of the heart. In an alternate embodiment, the biologically compatible material is constructed as a jacket of flexible material designed to be secured to the heart. Examples of electrotherapy instruments include a cardiac pacing device and a defibrillating device.
    Type: Application
    Filed: December 22, 2000
    Publication date: June 27, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: Clif Alferness, J. Edward Shapland, Michael Girard
  • Publication number: 20020068850
    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. The jacket includes a receiving member along its upper end for engagement to a delivery apparatus, the apparatus used in positioning the jacket on the heart. The delivery apparatus includes a handle and a band. The band is generally hoop shaped having a first end and a second end attached to the handle, the first end fixedly attached to the handle and the second end releasably attached to the handle. Alternatively, the first end can be attached to a releasable end cap of the handle. In use, the second end of the band is released from the handle and inserted into the jacket receiving member. The jacket is threaded onto the band and the band end re-attached to the handle.
    Type: Application
    Filed: December 1, 2000
    Publication date: June 6, 2002
    Applicant: Acorn Cardiovascular, Inc.
    Inventors: John C. Vanden Hoek, Beverly J. Johnson, Jody Rivers, John David Dockter