Patents by Inventor Louis C. Argenta
Louis C. Argenta has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8764794Abstract: The present invention relates generally to a device and method for treating tissues of the central nervous system and more particularly, but not exclusively, to a device and method for treating the brain tissue.Type: GrantFiled: September 18, 2012Date of Patent: July 1, 2014Assignee: Wake Forest University Health SciencesInventors: Louis C Argenta, David L Carroll, Nicole H Levi, Michael J Morykwas, Stephen B Tatter, William D Wagner, Jie Liu
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Publication number: 20140155790Abstract: A tissue treatment apparatus and method are provided for treating tissue by the application of the time-varying sub-atmospheric pressure. The apparatus includes a cover adapted to cover a wound and adapted to maintain sub-atmospheric pressure the site of the wound. The apparatus further includes a source of suction configured to generate a time-varying sub-atmospheric pressure having a periodic waveform comprising a gradual change in pressure. The suction source cooperates with the cover to supply the time-varying sub-atmospheric pressure under the cover to the wound. The time-varying sub-atmospheric pressure may vary between a first pressure value below the inherent tissue tension of the wound tissue and a second pressure value above the inherent tissue tension of the wound tissue.Type: ApplicationFiled: November 18, 2013Publication date: June 5, 2014Applicant: Wake Forest University Health SciencesInventors: Louis C. Argenta, Michael J. Morykwas, Lawrence X. Webb
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Publication number: 20130267952Abstract: An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.Type: ApplicationFiled: May 17, 2013Publication date: October 10, 2013Inventors: Lawrence X. Webb, Louis C. Argenta, Michael J. Morykwas
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Patent number: 8454603Abstract: An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.Type: GrantFiled: April 26, 2011Date of Patent: June 4, 2013Assignee: Wake Forest University Health SciencesInventors: Lawrence X. Webb, Louis C. Argenta, Michael J. Morykwas
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Patent number: 8267960Abstract: The present invention relates generally to a device and method for treating tissues of the central nervous system and more particularly, but not exclusively, to a device and method for treating the brain tissue.Type: GrantFiled: January 9, 2009Date of Patent: September 18, 2012Assignee: Wake Forest University Health SciencesInventors: Louis C. Argenta, David L. Carroll, Nichole H. Levi, Jie Liu, Michael J. Morykwas, Stephen Tatter, William D. Wagner
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Publication number: 20110202059Abstract: An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.Type: ApplicationFiled: April 26, 2011Publication date: August 18, 2011Inventors: Lawrence X. Webb, Louis C. Argenta, Michael J. Morykwas
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Patent number: 7931651Abstract: An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.Type: GrantFiled: March 30, 2007Date of Patent: April 26, 2011Assignee: Wake Lake University Health SciencesInventors: Lawrence X. Webb, Louis C. Argenta, Michael J. Morykwas
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Publication number: 20100121229Abstract: A method and apparatus are provided for treating cardiac tissue to modulate ischemic heart tissue with topical sub-atmospheric pressure to minimize cell death and damage.Type: ApplicationFiled: July 16, 2009Publication date: May 13, 2010Inventors: Louis C. Argenta, David L. Carroll, James E. Jordan, Nicole H. Levi, Jie Liu, Michael J. Morykwas, William D. Wagner
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Publication number: 20090254120Abstract: The present invention relates generally to a device and method for treating tissues of the central nervous system and more particularly, but not exclusively, to a device and method for treating the brain tissue.Type: ApplicationFiled: January 9, 2009Publication date: October 8, 2009Inventors: Louis C. Argenta, David L. Carroll, Nichole H. Levi
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Patent number: 7566313Abstract: The present invention describes a corrective headgear for treating infants having abnormal head shape or torticollis. In an embodiment, the headgear comprises a protective shell having a curvilinear surface, wherein the curvilinear surface is positioned to overlie at least a portion of the cranium of an infant, to thereby prevent the infant from resting its head on the regions of the skull underneath the surface of the shell. In an embodiment, the headgear comprises a cloth cap that wraps around the shell to position the shell on the infant's head. Also in an embodiment, the shell comprise a convex protrusion positioned on the shell to prevent the infant from resting its head on regions of the skull protected by the headgear.Type: GrantFiled: June 12, 2003Date of Patent: July 28, 2009Assignee: American Southeast Medical Technologies, LLCInventor: Louis C. Argenta
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Publication number: 20090187259Abstract: The present invention provides devices and methods that treat damaged spinal cord tissue, such as spinal tissue damaged by disease, infection, or trauma, which may lead to the presence of swelling, compression, and compromised blood flow secondary to interstitial edema.Type: ApplicationFiled: October 9, 2008Publication date: July 23, 2009Inventors: Louis C. Argenta, David L. Carroll, Nicole H. Levi, Jie Liu, Michael J. Morykwas, Stephen Tatter
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Publication number: 20080281324Abstract: An external fixation assembly includes a plurality of hollow pins that are inserted into a patient's bone. Each pin has an interior bore and a plurality of apertures extending through the pin wall from the bore. The pin may be coupled to a source of vacuum pressure operable to create reduced pressure in the tissue surrounding the pin. A cover is placed around the pin and sealed to provide a fluid-tight enclosure that maintains reduced pressure around the pin. A method for applying external fixation using the fixator pins described above includes the steps of inserting each pin through a skin opening, positioning the pin apertures near selected tissue, covering the skin opening with a sealed enclosure, connecting the pins to a source of vacuum pressure, and activating the source of vacuum pressure to create reduced pressure in the patient's tissue at or near the bone.Type: ApplicationFiled: March 30, 2007Publication date: November 13, 2008Inventors: Lawrence X. Webb, Louis C. Argenta, Michael J. Morykwas
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Publication number: 20080208171Abstract: The present invention relates to a device and method for removing edema from an edematous tissue. The device includes at least one aciculated component disposed in fluid communication with a suction manifold. A suction source is fluidically connected to the suction manifold to provide a suction force to the suction manifold. The suction force is transmitted through the suction manifold to the at least one aciculated component to withdraw the edema from edematous tissue through the suction manifold and the at least one aciculated component.Type: ApplicationFiled: February 23, 2007Publication date: August 28, 2008Inventors: Louis C. Argenta, Michael J. Morykwas, Lawrence X. Webb
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Patent number: 7216651Abstract: A method of treating tissue damage comprises applying a negative pressure to a wound sufficient in time and magnitude to promote tissue migration and thus facilitate closure of the wound. The method is applicable to wounds, burns, infected wounds, and live tissue attachments. A wound treatment apparatus is provided in which a fluid impermeable wound cover is sealed over a wound site. A screen in the form of an open-cell foam screen or a rigid porous screen is placed beneath the wound cover over the wound. A vacuum pump supplies suction within the wound cover over the treatment site.Type: GrantFiled: May 23, 2001Date of Patent: May 15, 2007Assignee: Wake Forest University Health SciencesInventors: Louis C. Argenta, Michael J. Morykwas
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Patent number: 7198046Abstract: A method of treating tissue damage comprises applying a negative pressure to a wound sufficient in time and magnitude to promote tissue migration and thus facilitate closure of the wound. The method is applicable to wounds, burns, infected wounds, and live tissue attachments. A wound treatment apparatus is provided in which a fluid impermeable wound cover is sealed over a wound site. A screen in the form of an open-cell foam screen or a rigid porous screen is placed beneath the wound cover over the wound. A vacuum pump supplies suction within the wound cover over the treatment site.Type: GrantFiled: February 19, 1998Date of Patent: April 3, 2007Assignee: Wake Forest University Health SciencesInventors: Louis C. Argenta, Michael J. Morykwas
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Patent number: 7153284Abstract: A method and apparatus for treating infant plagiocephaly whereby a helmet encircles the upper cranium of an infant and prevents the infant from resting its head on flattened or depressed regions of the skull. The helmet contemplates an adjustable first member which encircles the infant's upper cranium, and a second member comprising a relatively rigid protruding element that is attached to the exterior surface of the first member. The second member is positioned so that it is superincumbant to flattened or depressed regions, so that when the helmet is worn, the second member forces the infant to rest its head on a different area of the skull, thus passively relieving pressure on the depressed skull, and applying a gentle active pressure to other areas. Additionally, the method an apparatus relates to the treatment of torticollis and other abnormalities of the neck.Type: GrantFiled: May 12, 2003Date of Patent: December 26, 2006Assignee: American Southeast Medical Technologies, LLCInventor: Louis C. Argenta
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Publication number: 20040122434Abstract: A method of treating bone tissue damage is provided which includes applying a reduced pressure to a damaged bone tissue sufficient in time and magnitude to promote healing of the damaged bone tissue. A bone tissue treatment apparatus is provided in which a cover is sealed over a bone tissue site. A screen in the form of an open-cell foam screen or a rigid porous screen may be placed beneath the tissue cover over the damaged bone tissue. A vacuum pump supplies suction within the tissue cover over the treatment site. The cover may be sealed over an area of intact skin above damaged bone tissue. The vacuum pump supplies reduced pressure within the tissue cover over the area of intact skin to treat the damaged bone tissue beneath the area of skin.Type: ApplicationFiled: August 22, 2003Publication date: June 24, 2004Inventors: Louis C. Argenta, Michael J. Morykwas, Lawrence X. Webb
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Publication number: 20040039391Abstract: A method of treating bone tissue damage is provided which includes applying a reduced pressure to a damaged bone tissue sufficient in time and magnitude to promote healing of the damaged bone tissue. A bone tissue treatment apparatus is provided in which a fluid impermeable tissue cover is sealed over a bone tissue site. A screen in the form of an open-cell foam screen or a rigid porous screen is placed beneath the tissue cover over the damaged bone tissue. A vacuum pump supplies suction within the tissue cover over the treatment site.Type: ApplicationFiled: August 23, 2002Publication date: February 26, 2004Inventors: Louis C. Argenta, Michael J. Morykwas, Lawrence X. Webb
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Patent number: 6673028Abstract: A passive movement deivce for exercising a patient's joint is provided. The device includes a resilient foam section and a casing enclosing the foam section within a sealed chamber. The patient's joint is held in position relative to the sealed chamber by a suitable retainer. A vacuum pump is operatively connected with the sealed chamber to selectively provide application and non-application of a reduced pressure, i.e. below atmospheric, to the sealed chamber. The application of the reduced pressure causes the foam section to collapse thereby exerting a force on the joint which causes the joint to move or bend from a predetermined position. The non-application of the reduced pressure to the sealed chamber causes the foam section to expand thereby exerting a force on the joint which causes the joint to move or bend toward the predetermined position.Type: GrantFiled: September 27, 1999Date of Patent: January 6, 2004Assignee: Wake Forest University Health SciencesInventors: Louis C. Argenta, Michael J. Morykwas
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Publication number: 20030225347Abstract: A tissue growth apparatus and method are provided for growing tissue by applying a tissue growth medium to the tissue and applying reduced, sub-atmospheric pressure at the growth medium and the tissue in a controlled manner for a selected time period. The application of reduced pressure at the growth medium and tissue promotes growth of the tissue within the tissue growth medium. The apparatus includes a tissue cover sealed over a tissue site. The apparatus also includes a tissue growth medium located beneath the tissue cover and in contact with the tissue to be grown. A vacuum pump supplies suction within the tissue cover over the tissue site to provide reduced pressure to the tissue and the tissue growth medium.Type: ApplicationFiled: June 3, 2002Publication date: December 4, 2003Inventors: Louis C. Argenta, Michael J. Morykwas, Lawrence X. Webb