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).

  • Publication number: 20190143009
    Abstract: The present invention provides an apparatus comprising a wound dressing connected to a fluid container via a pump, wherein the wound dressing is in communication with a mechanical pressure control valve, the fluid container is provided with an inlet and an outlet. Also provided are ( ) flexible fluid containers comprising of at least two layers of film with an integrated vent, (ii) wound dressings and (i) a multi-compartment wound fluid container comprising at least two internal compartments and provided with an outlet and an inlet, in which the container comprises a microporous fluid separator which divides the at least two internal compartments, wherein the microporous fluid separator permits gas flow between the compartments and prevents fluid flow to the outlet of the container. Other apparatus provided comprises a means for detecting the level of fluid within a multi-compartment wound fluid container as described.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Applicant: i2r Medical Limited
    Inventors: Keith Heaton, Ian Hardman
  • Patent number: 10226553
    Abstract: The present invention provides an apparatus comprising a wound dressing (15) connected to a fluid container (11) via a pump (3), wherein the wound dressing is in communication with a mechanical pressure control valve (13), the fluid container is provided with an inlet (2) and an outlet (4). Also provided are (i) flexible fluid containers comprising of at least two layers of film with an integrated vent, (ii) wound dressings and (iii) a multi-compartment wound fluid container (20, 35, 63) comprising at least two internal compartments and provided with an outlet (31, 37, 51) and an inlet (19, 49), in which the container comprises a microporous fluid separator (29, 41, 55) which divides the at least two internal compartments, wherein the microporous fluid separator permits gas flow between the compartments and prevents fluid flow to the outlet of the container. Other apparatus provided comprises a means for detecting the level of fluid within a multi-compartment wound fluid container as described.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: March 12, 2019
    Assignee: i2r Medical Limited
    Inventors: Keith Heaton, Ian Hardman
  • Patent number: 9445947
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing manner while also limiting the formation of adhesions that would prevent the removal of the dressing. The dressing includes a layer of porous foam material enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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: February 3, 2014
    Date of Patent: September 20, 2016
    Assignee: KCI Licensing, Inc.
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Publication number: 20150246164
    Abstract: The present invention provides an apparatus comprising a wound dressing (15) connected to a fluid container (11) via a pump (3), wherein the wound dressing is in communication with a mechanical pressure control valve (13), the fluid container is provided with an inlet (2) and an outlet (4). Also provided are (i) flexible fluid containers comprising of at least two layers of film with an integrated vent, (ii) wound dressings and (iii) a multi-compartment wound fluid container (20, 35, 63) comprising at least two internal compartments and provided with an outlet (31, 37, 51) and an inlet (19, 49), in which the container comprises a microporous fluid separator (29, 41, 55) which divides the at least two internal compartments, wherein the microporous fluid separator permits gas flow between the compartments and prevents fluid flow to the outlet of the container. Other apparatus provided comprises a means for detecting the level of fluid within a multi-compartment wound fluid container as described.
    Type: Application
    Filed: September 20, 2013
    Publication date: September 3, 2015
    Inventors: Keith Heaton, Ian Hardman
  • Publication number: 20140221947
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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: February 3, 2014
    Publication date: August 7, 2014
    Applicant: KCI LICENSING, INC.
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Patent number: 8672903
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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 8, 2012
    Date of Patent: March 18, 2014
    Assignee: KCI Licensing, Inc.
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Patent number: 8613734
    Abstract: A wound closure system and method having a porous pad for providing a reduced pressure to a tissue site is disclosed. The porous pad comprises a porous material formed by spraying a chemical substance that cures to form the porous material which has a body and an outer surface. Both the body and the outer surface have pores wherein the average size of the pores in the outer surface is smaller than the average size of the pores in the body. The porous pad further comprises a pathway formed within the porous material that is adapted to fluidly communicate with a source of reduced pressure.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: December 24, 2013
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Publication number: 20120220963
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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: May 8, 2012
    Publication date: August 30, 2012
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Patent number: 8202262
    Abstract: A wound closure apparatus to promote tissue healing at a wound is provided and includes a porous pad positioned at the wound and a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad. The suction pump is disposed within a housing. A canister is fluidly connected between the porous pad and the suction pump to collect fluids drawn from the wound by the suction pump, and the canister is removably received by a recess in the housing. A wound cover is positioned over the porous pad to secure the porous pad at the wound, and a switch provides a signal indicating that the canister properly resides within the recess when the switch is pressed.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 19, 2012
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton
  • Patent number: 8187210
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing manner while also limiting the formation of adhesions that would prevent the removal of the dressing. The method comprises providing a flexible film having a plurality of holes therein and placing the flexible film in the wound. The flexible film has a first, patient-facing side and a second side. The method includes placing a porous pad on top of the second side of the flexible film. The flexible film and porous pad are sealed within the wound with a drape that is positioned in contact with an area of skin surrounding the wound. A negative pressure is provided to the porous pad for drawing a flow of exuded fluids from the wound.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: May 29, 2012
    Assignee: KCI Licensing, Inc
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Publication number: 20120083755
    Abstract: A wound closure system and method having a porous pad for providing a reduced pressure to a tissue site is disclosed. The porous pad comprises a porous material formed by spraying a chemical substance that cures to form the porous material which has a body and an outer surface. Both the body and the outer surface have pores wherein the average size of the pores in the outer surface is smaller than the average size of the pores in the body. The porous pad further comprises a pathway formed within the porous material that is adapted to fluidly communicate with a source of reduced pressure.
    Type: Application
    Filed: December 12, 2011
    Publication date: April 5, 2012
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Patent number: 8096979
    Abstract: A wound closure system and method having a porous pad for providing a reduced pressure to a tissue site is disclosed. The porous pad comprises a porous material formed by spraying a chemical substance that cures to form the porous material which has a body and an outer surface. Both the body and the outer surface have pores wherein the average size of the pores in the outer surface is smaller than the average size of the pores in the body. The porous pad further comprises a pathway formed within the porous material that is adapted to fluidly communicate with a source of reduced pressure.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: January 17, 2012
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Publication number: 20110224635
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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: May 23, 2011
    Publication date: September 15, 2011
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Patent number: 7951100
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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 27, 2008
    Date of Patent: May 31, 2011
    Assignee: KCI Licensing Inc.
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder
  • Patent number: 7758554
    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: Grant
    Filed: May 11, 2007
    Date of Patent: July 20, 2010
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Publication number: 20100145289
    Abstract: A wound closure apparatus to promote tissue healing at a wound is provided and includes a porous pad positioned at the wound and a suction pump in fluid communication with the porous pad to provide a negative pressure to the porous pad. The suction pump is disposed within a housing. A canister is fluidly connected between the porous pad and the suction pump to collect fluids drawn from the wound by the suction pump, and the canister is removably received by a recess in the housing. A wound cover is positioned over the porous pad to secure the porous pad at the wound, and a switch provides a signal indicating that the canister properly resides within the recess when the switch is pressed.
    Type: Application
    Filed: November 2, 2009
    Publication date: June 10, 2010
    Inventors: Cesar Z. Lina, Keith Heaton
  • Patent number: 7722582
    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: June 20, 2003
    Date of Patent: May 25, 2010
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Publication number: 20100022972
    Abstract: A wound closure system and method having a porous pad for providing a reduced pressure to a tissue site is disclosed. The porous pad comprises a porous material formed by spraying a chemical substance that cures to form the porous material which has a body and an outer surface. Both the body and the outer surface have pores wherein the average size of the pores in the outer surface is smaller than the average size of the pores in the body. The porous pad further comprises a pathway formed within the porous material that is adapted to fluidly communicate with a source of reduced pressure.
    Type: Application
    Filed: June 25, 2009
    Publication date: January 28, 2010
    Inventors: Cesar Z. Lina, Keith Heaton, Royce Johnson
  • Patent number: 7611500
    Abstract: A wound closure apparatus is disclosed which includes 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 and at an inlet with a pad. The pad is placed over 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. After the canister is filled, it is removed from the chamber and replaced with another canister to continue the removal of wound fluids.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: November 3, 2009
    Assignee: KCI Licensing, Inc.
    Inventors: Cesar Z. Lina, Keith Heaton
  • Publication number: 20080243044
    Abstract: An abdominal wound dressing and methods of use are described that enable the application of negative pressure to the wound site in a healing 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 enclosed by sheets of elastomeric material punctuated by a number of appropriately placed holes. Multiple layers of porous foam may also be used. A suction tube connector is provided on an upper surface of a layer of foam 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: May 27, 2008
    Publication date: October 2, 2008
    Inventors: Kenneth Hunt, Keith Heaton, Wayne Schroeder