Patents Assigned to Acorn Cardiovascular, Inc.
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Patent number: 6579226Abstract: 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: GrantFiled: August 3, 2001Date of Patent: June 17, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: John C. Vanden Hoek, Jody L. Rivers
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Patent number: 6575921Abstract: 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: GrantFiled: February 9, 2001Date of Patent: June 10, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: John Vanden Hoek, Jody Rivers
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Patent number: 6572533Abstract: 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: GrantFiled: August 17, 2000Date of Patent: June 3, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: J. Edward Shapland, Clif Alferness, Donald Palme, Michael Girard, Donald Rohrbaugh
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Patent number: 6567699Abstract: 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: GrantFiled: January 30, 2002Date of Patent: May 20, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, James Edward Shapland
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Patent number: 6564094Abstract: 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: GrantFiled: December 22, 2000Date of Patent: May 13, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: Clif Alferness, J. Edward Shapland, Michael Girard
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Patent number: 6544168Abstract: 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: GrantFiled: February 25, 2002Date of Patent: April 8, 2003Assignee: Acorn Cardiovascular, Inc.Inventor: Clifton A. Alferness
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Patent number: 6537203Abstract: 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: GrantFiled: May 4, 2000Date of Patent: March 25, 2003Assignee: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
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Publication number: 20030045776Abstract: 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: ApplicationFiled: October 23, 2002Publication date: March 6, 2003Applicant: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, Donald G. Rohrbaugh, J. Edward Shapland, Michael J. Girard, Donald F. Palme, James E. Cox
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Publication number: 20030028077Abstract: 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: ApplicationFiled: September 20, 2002Publication date: February 6, 2003Applicant: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, Jai Shankar Raman, John Melmouth Power
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Patent number: 6482146Abstract: 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: GrantFiled: June 13, 2000Date of Patent: November 19, 2002Assignee: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, Donald G. Rohrbaugh, J. Edward Shapland, Michael J. Girard, Donald F. Palme, II, James E. Cox
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Publication number: 20020151950Abstract: 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: ApplicationFiled: June 13, 2001Publication date: October 17, 2002Applicant: Acorn Cardiovascular, Inc.Inventor: Yuzi Okuzumi
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Publication number: 20020151766Abstract: 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: ApplicationFiled: June 13, 2002Publication date: October 17, 2002Applicant: Acorn Cardiovascular, Inc.Inventors: J. Edward Shapland, Robert G. Walsh, John David Dockter
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Publication number: 20020133055Abstract: 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: ApplicationFiled: May 7, 2002Publication date: September 19, 2002Applicant: Acorn Cardiovascular Inc.Inventor: Hans Haindl
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Publication number: 20020111567Abstract: 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: ApplicationFiled: February 9, 2001Publication date: August 15, 2002Applicant: Acorn Cardiovascular, Inc.Inventors: John Vanden Hoek, Jody Rivers
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Publication number: 20020103511Abstract: 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: ApplicationFiled: January 30, 2002Publication date: August 1, 2002Applicant: Acorn Cardiovascular, Inc.Inventors: Clifton A. Alferness, James Edward Shapland
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Patent number: 6425856Abstract: 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: GrantFiled: May 10, 2000Date of Patent: July 30, 2002Assignee: Acorn Cardiovascular, Inc.Inventors: J. Edward Shapland, Robert G. Walsh, John David Dockter
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Publication number: 20020091296Abstract: 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: ApplicationFiled: February 25, 2002Publication date: July 11, 2002Applicant: Acorn Cardiovascular, Inc.Inventor: Clifton A. Alferness
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Patent number: 6416459Abstract: 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: GrantFiled: December 3, 1999Date of Patent: July 9, 2002Assignee: Acorn Cardiovascular Inc.Inventor: Hans Haindl
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Publication number: 20020082647Abstract: 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: ApplicationFiled: December 22, 2000Publication date: June 27, 2002Applicant: Acorn Cardiovascular, Inc.Inventors: Clif Alferness, J. Edward Shapland, Michael Girard
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Publication number: 20020068850Abstract: 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: ApplicationFiled: December 1, 2000Publication date: June 6, 2002Applicant: Acorn Cardiovascular, Inc.Inventors: John C. Vanden Hoek, Beverly J. Johnson, Jody Rivers, John David Dockter