Patents by Inventor Keith Heaton

Keith Heaton 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).

  • Patent number: 7381859
    Abstract: A system and method for the temporary closure of a wound, especially an abdominal wound, to facilitate re-entry, final closure, and long term healing of the wound. An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a site healing promoting manner while also limiting the formation of adhesions that would prevent the removal of the dressing. The dressing comprises a layer of porous foam material (36) enclosed by sheets of elastomeric material (38) punctuated by a number of appropriately placed holes (34). Multiple layers of porous foam may also be used. A suction tube connector (16) is provided on an upper surface of a layer of foam (12) for connection to a negative pressure source. At least one layer of foam is enclosed in elastomeric material and is placed in direct contact with the tissue within the open wound. Fluids are drawn by negative pressure through the holes positioned in the elastomeric envelope, and through the foam.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: June 3, 2008
    Assignee: KCI Licensing, Inc.
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Publication number: 20080108977
    Abstract: A manually-activated reduced pressure treatment system includes a substantially rigid housing, and an end cap slidingly received by the housing. An inner chamber is disposed between the end cap and housing, and a volume of the inner chamber is variable in amount depending on the position of the end cap within the housing. The end cap is slidingly movable between an uncompressed position at which the volume of the inner chamber is at a maximum value and a compressed position at which the volume of the inner chamber is at a minimum value. A position indicating member is associated with the end cap and housing to indicate the position of the end cap relative to the housing at predetermined positions between the uncompressed position and the compressed position.
    Type: Application
    Filed: October 15, 2007
    Publication date: May 8, 2008
    Inventors: Keith Heaton, Ian Hardman
  • Publication number: 20080039761
    Abstract: A method for stimulating new tissue growth is provided in which a limb is introduced into an interior portion of an outer cover. A porous component is applied to at least a portion of the limb within the outer cover. An opening through which the limb was introduced is sealed, and a negative pressure is applied to the interior portion to stimulate new tissue growth.
    Type: Application
    Filed: October 5, 2007
    Publication date: February 14, 2008
    Inventors: Keith Heaton, Kenneth Hunt
  • Publication number: 20080011368
    Abstract: An apparatus for connecting multi-lumen conduits is described. The apparatus may include a conduit adapter and a conduit collar. The conduit adapter may include a housing, a bayonet connector, and a support member connecting the housing and the bayonet connector. The support member has an aperture that permits fluid communication through the support member. One end of the conduit collar is sized for insertion into the housing, and a second end is adapted to receive a first multi-lumen conduit. The housing also is adapted to receive a second multi-lumen conduit. The bayonet connector engages a primary lumen of the first multi-lumen conduit and the second multi-lumen conduit such that the primary lumen of the second multi-lumen conduit fluidly communicates with the primary lumen of the first multi-lumen conduit. The conduit adapter and the conduit collar are capable of 360 degree rotation relative to each other about a common axis.
    Type: Application
    Filed: April 24, 2007
    Publication date: January 17, 2008
    Inventors: Vinay Singh, Larry Swain, Douglas Cornet, Robert Wilkes, Keith Heaton, Christopher Locke, Timothy Robinson
  • Publication number: 20070250141
    Abstract: A patient cooling system comprises an inflatable patient mattress and a patient enclosure or tent supported by a framework of inflatable tubes drawing air off of the same air supply used to supply the mattress and to cool the tent. The framework of inflatable tubes is divided into left and right sections, which are further subdivided into lower body and upper body sections. An inflatable connector with a stem and protuberance is provided to secure the framework in a closed position. The patient-supporting mattress comprises a plurality of inflatable compartments extending transversely across the width of the mattress that can be alternately pressurized for pressure relief therapy. Radially collapsible, sleeved openings in the tent panel enable connection of conduits or patient care lines to the patient.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 25, 2007
    Inventors: Keith Heaton, Mark Beard, David Whyte, Peter Stacy, Chris Coward
  • Publication number: 20070219513
    Abstract: A wound closure apparatus having a porous pad adapted to be fluidly connected to a vacuum pump. The pad is placed over or within a tissue site, and the vacuum pump may be activated to draw air and exudates from the tissue site. The pad contains multiple pore sizes to prevent granulation tissue from migrating into the pad as reduced pressure treatment is applied. The pad has an outer surface adjacent the wound with pore sizes of a diameter of approximately 100 microns or less to prevent tissue from growing into the pad and is treated for biocompatibility.
    Type: Application
    Filed: May 11, 2007
    Publication date: September 20, 2007
    Inventors: Cesar Lina, Keith Heaton, Royce Johnson
  • Publication number: 20070219512
    Abstract: Described are improvements to the structure and functionality of a reduced pressure adapter used to connect a distribution manifold and a reduced pressure source instrumentation in a reduced pressure wound treatment (RPWT) system. The reduced pressure adapter reduces instances of unintentional liquid ingress into ancillary lumens of a reduced pressure delivery tube, while channeling the liquid to a primary lumen of the reduced pressure delivery tube.
    Type: Application
    Filed: February 6, 2007
    Publication date: September 20, 2007
    Applicant: KCI Licensing, Inc.
    Inventors: Keith Heaton, Timothy Robinson, Christopher Locke
  • Publication number: 20070167927
    Abstract: A reduced pressure treatment apparatus includes a drape for positioning over the wound site to create and maintain a substantially air-tight cavity between the wound site and the drape. A multi-lumen suction tube is provided to be attached to a reduced pressure source. The multi-lumen suction tube includes a center lumen and at least one outer lumen and is configured to deliver reduced pressure beneath the drape to the substantially air-tight cavity. The multi-lumen suction tube is adapted to allow fluid to be drawn from the wound site through the center lumen and pressure to be monitored at the wound site through the at least one outer lumen.
    Type: Application
    Filed: March 2, 2007
    Publication date: July 19, 2007
    Applicant: KCI Licensing, Inc.
    Inventors: Kenneth Hunt, Keith Heaton
  • Publication number: 20070073369
    Abstract: An apparatus to provide thermal control to a patient comprises a neck member having a surface defining at least one opening, the surface configured to be spaced apart from a neck area of the patient. The neck member includes an air inlet to receive cooled air from an air source. The at least one opening is in fluid communication with the air inlet to direct cooled air from the air source and toward the neck area of the patient to provide the thermal control to the patient.
    Type: Application
    Filed: September 8, 2006
    Publication date: March 29, 2007
    Applicant: KCI Licensing, Inc.
    Inventors: Keith Heaton K., Christopher Coward, Mark Beard, Peter Stacy, David Whyte
  • Publication number: 20070032778
    Abstract: A wound therapy combination comprising a suction head and a surgical drape. The suction head comprises a planar flange portion and a tubular connector piece on a first face that communicates with an aperture extending to a second face. The second face is formed with projections that define flow channels for facilitating flow of liquids to the aperture.
    Type: Application
    Filed: October 10, 2006
    Publication date: February 8, 2007
    Applicant: KCI Licensing, Inc.
    Inventors: Keith Heaton, Kenneth Hunt
  • Publication number: 20060149170
    Abstract: A system for stimulating the healing of tissue comprises a porous pad positioned within a wound cavity, and an airtight dressing secured over the pad, so as to provide an airtight seal to the wound cavity. A proximal end of a conduit is connectable to the dressing. A distal end of the conduit is connectable to a negative pressure source, which may be an electric pump housed within a portable housing, or wall suction. A canister is positioned along the conduit to retain exudates suctioned from the wound site during the application of negative pressure. A first hydrophobic filter is positioned at an opening of the canister to detect a canister full condition. A second hydrophobic filter is positioned between the first filter and the negative pressure source to prevent contamination of the non-disposable portion of the system by exudates being drawn from the wound. An odor filter is positioned between the between the first and second hydrophobic filters to aid in the reduction of malodorous vapors.
    Type: Application
    Filed: February 28, 2006
    Publication date: July 6, 2006
    Applicant: KCI Licensing, Inc.
    Inventors: Thomas Boynton, Teryl Sanders, Keith Heaton, Kenneth Hunt, Mark Stephen Beard, David Tumey, L. Randolph
  • Publication number: 20060004426
    Abstract: A disposable portable therapeutic cooling system that utilizes convective cooling and re-circulated air to efficiently, safely, and effectively cool the head and body of the patient, clothed or not, after a life-threatening health event, such as a cardiac arrest or stroke.
    Type: Application
    Filed: July 5, 2005
    Publication date: January 5, 2006
    Applicant: KCI Licensing, Inc.
    Inventor: Keith Heaton
  • Publication number: 20050283913
    Abstract: A patient cooling system comprises an inflatable patient mattress having an airflow system and integral manifold incorporated therein and a patient enclosure or tent coupled to the inflatable patient mattress and supported by a framework of inflatable tubes drawing air off of the same air supply used to supply the mattress and to thermally control the area in the tent. The framework of inflatable tubes is divided into left and right sections, which are further subdivided into lower body and upper body sections. An inflatable connector with a stem and protuberance is provided to secure the framework in a closed position. The patient-supporting mattress comprises a plurality of inflatable compartments extending transversely across the width of the mattress that can be alternately pressurized for pressure relief therapy. Air is recirculated from the area in the tent and the integral manifold through the airflow system and into a thermal control unit.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 29, 2005
    Applicant: KCI Licensing, Inc.
    Inventors: Keith Heaton, Mark Beard, David Whyte, Peter Stacy, Chris Coward
  • Publication number: 20050283105
    Abstract: A wound therapy device comprising a head and a surgical drape. The head comprises a planar flange portion and a tubular connector piece on a first face that communicates with an aperture extending to a second face. The second face is formed with projections that define flow channels for facilitating flow of liquids to and from the aperture.
    Type: Application
    Filed: November 8, 2004
    Publication date: December 22, 2005
    Inventors: Keith Heaton, Kenneth Hunt, Teryl Sanders
  • Publication number: 20050028828
    Abstract: A wound therapy combination comprising a suction head and a surgical drape. The suction head comprises a planar flange portion and a tubular connector piece on a first face that communicates with an aperture extending to a second face. The second face is formed with projections that define flow channels for facilitating flow of liquids to the aperture.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 10, 2005
    Applicant: KCI Licensing, Inc.
    Inventors: Keith Heaton, Kenneth Hunt
  • Patent number: 6695823
    Abstract: A wound closure apparatus having a housing that contains a vacuum pump and a chamber for holding a disposable wound fluid collection canister. The canister resides within the chamber and connects at an outlet with the vacuum pump at an inlet with a porous wound pad. The pad is placed over or within a wound and adhesively secured thereto. When the vacuum pump activates, it evacuates air from the canister resulting in wound fluids flowing from the wound into the canister. Due to the negative effect that a vacuum can impose on tissue when granulation tissue is pulled into the pad, the pad contains multiple pore sizes to prevent granulation tissue from migrating into the pad. The pad has an outer surface adjacent the wound with pore sizes of a diameter of approximately 100 microns or less to prevent tissue from growing into the pad and is treated for biocompatibility.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: February 24, 2004
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Publication number: 20040030304
    Abstract: A system and method for the temporary closure of a wound, especially an abdominal wound, to facilitate re-entry, final closure, and long term healing of the wound. An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a site healing promoting manner while also limiting the formation of adhesions that would prevent the removal of the dressing. The dressing comprises a layer of porous foam material (36) enclosed by sheets of elastomeric material (38) punctuated by a number of appropriately placed holes (34). Multiple layers of porous foam may also be used. A suction tube connector (16) is provided on an upper surface of a layer of foam (12) for connection to a negative pressure source. At least one layer of foam is enclosed in elastomeric material and is placed in direct contact with the tissue within the open wound. Fluids are drawn by negative pressure through the holes positioned in the elastomeric envelope, and through the foam.
    Type: Application
    Filed: June 10, 2003
    Publication date: February 12, 2004
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Publication number: 20040006319
    Abstract: A wound closure apparatus having a housing that contains a vacuum pump and a chamber for holding a disposable wound fluid collection canister. The canister resides within the chamber and connects at an outlet with the vacuum pump at an inlet with a porous wound pad. The pad is placed over or within a wound and adhesively secured thereto. When the vacuum pump activates, it evacuates air from the canister resulting in wound fluids flowing from the wound into the canister. Due to the negative effect that a vacuum can impose on tissue when granulation tissue is pulled into the pad, the pad contains multiple pore sizes to prevent granulation tissue from migrating into the pad. The pad has an outer surface adjacent the wound with pore sizes of a diameter of approximately 100 microns or less to prevent tissue from growing into the pad and is treated for biocompatibility.
    Type: Application
    Filed: June 20, 2003
    Publication date: January 8, 2004
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Patent number: 5229109
    Abstract: The properties of two recombinant human IL-2 analogues with mutations at Arginine 38 (.fwdarw.Alanine) and Phenylalanine 42 (.fwdarw.Lysine) were analyzed and compared to those of native IL-2. These analogues were found to maintain their ability to bind to the intermediate IL-2 receptor, p75, while binding only minimally to the high affinity p55+p75 receptor complex. The analogues also maintained the ability to stimulate peripheral blood mononuclear cells to generate lymphokine activated killing (LAK). However, IL-1.beta. and TNF-.alpha. secretion were significantly reduced in response to the analogues, as compared to the native IL-2 molecule. These analogues are therefore potentially valuable low-toxicity alternatives to IL-2 in human immunotherapy and adoptive immunotherapy treatment strategies.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: July 20, 1993
    Assignee: Board of Regents, The University of Texas System
    Inventors: Elizabeth A. Grimm, Keith Heaton
  • Patent number: D364679
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: November 28, 1995
    Assignee: Kinetic Concepts, Inc.
    Inventors: Keith Heaton, Cesar Z. Lina