Patents by Inventor Gregory G. Liburd

Gregory G. Liburd 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: 12539206
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly includes a primary sterile barrier that permits gas sterilization of the tissue implant, and a secondary sterile barrier that also prevents oxidation of the implant during long-term storage. Tissue heart valves may be placed or suspended within a cavity of an inner rigid tray with a gas-permeable lid sealed thereon, and a cap placed over the cavity to limit movement of the valve therein. The inner tray is placed within an outer sterile barrier, such as another rigid tray or a flexible pouch, and the assembly is then sterilized. The outer sterile barrier may include a double seal so that a first gas-permeable seal can be closed for sterilization, after which a second gas-impermeable seal can be closed to seal out any further oxygen contact with the tissue implant.
    Type: Grant
    Filed: February 15, 2024
    Date of Patent: February 3, 2026
    Assignee: Edwards Lifesciences Corporation
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Patent number: 12383390
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Grant
    Filed: February 28, 2024
    Date of Patent: August 12, 2025
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Publication number: 20240197461
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Application
    Filed: February 28, 2024
    Publication date: June 20, 2024
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Publication number: 20240180685
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly includes a primary sterile barrier that permits gas sterilization of the tissue implant, and a secondary sterile barrier that also prevents oxidation of the implant during long-term storage. Tissue heart valves may be placed or suspended within a cavity of an inner rigid tray with a gas-permeable lid sealed thereon, and a cap placed over the cavity to limit movement of the valve therein. The inner tray is placed within an outer sterile barrier, such as another rigid tray or a flexible pouch, and the assembly is then sterilized. The outer sterile barrier may include a double seal so that a first gas-permeable seal can be closed for sterilization, after which a second gas-impermeable seal can be closed to seal out any further oxygen contact with the tissue implant.
    Type: Application
    Filed: February 15, 2024
    Publication date: June 6, 2024
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Patent number: 11931237
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Grant
    Filed: November 8, 2021
    Date of Patent: March 19, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Patent number: 11911256
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can have a valve holder configured for removably attaching a bioprosthetic heart valve, a storage tray comprising an open end and a cavity, and a retaining member configured for removably attaching the valve holder. The retaining member can be generally planar and have a slot having a closed end and an open outer end. The valve holder can be configured to be retained at the closed end of the slot in the retaining member.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 27, 2024
    Assignee: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Publication number: 20220054251
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Application
    Filed: November 8, 2021
    Publication date: February 24, 2022
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Patent number: 11166801
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 9, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Publication number: 20200205959
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Publication number: 20200179093
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can have a valve holder configured for removably attaching a bioprosthetic heart valve, a storage tray comprising an open end and a cavity, and a retaining member configured for removably attaching the valve holder. The retaining member can be generally planar and have a slot having a closed end and an open outer end. The valve holder can be configured to be retained at the closed end of the slot in the retaining member.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventors: Gregory G. Liburd, Abishek Gautam
  • Patent number: 10631968
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: April 28, 2020
    Assignee: Edwards Lifesciences Corporation
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Patent number: 10561486
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can comprise a holder comprising an engagement structure configured for removably attaching a bioprosthetic heart valve, the holder comprising a shaft. The packaging assembly can also include a storage tray comprising a cavity and an insert sized to provide a cap over the cavity of the storage tray, the insert comprising a slot having a closed central end and an open outer periphery. The shaft of the holder can be non-rotatably retained at the closed central end, wherein the insert defines a flat, generally planar disc comprising at least one of outward projections and flow passages.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: February 18, 2020
    Assignee: Edwards Lifesciences Corporation
    Inventors: Gregory G. Liburd, Abishek Gautam
  • Publication number: 20190151068
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can comprise a holder comprising an engagement structure configured for removably attaching a bioprosthetic heart valve, the holder comprising a shaft. The packaging assembly can also include a storage tray comprising a cavity and an insert sized to provide a cap over the cavity of the storage tray, the insert comprising a slot having a closed central end and an open outer periphery. The shaft of the holder can be non-rotatably retained at the closed central end, wherein the insert defines a flat, generally planar disc comprising at least one of outward projections and flow passages.
    Type: Application
    Filed: January 22, 2019
    Publication date: May 23, 2019
    Inventors: Gregory G. Liburd, Abishek Gautam
  • Patent number: 10195013
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can comprise a holder comprising an engagement structure configured for removably attaching a bioprosthetic heart valve, the holder comprising a shaft. The packaging assembly can also include a storage tray comprising a cavity and an insert sized to provide a cap over the cavity of the storage tray, the insert comprising a slot having a closed central end and an open outer periphery. The shaft of the holder can be non-rotatably retained at the closed central end, wherein the insert defines a flat, generally planar disc comprising at least one of outward projections and flow passages.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 5, 2019
    Assignee: Edwards Lifesciences Corporation
    Inventors: Gregory G. Liburd, Abishek Gautam
  • Publication number: 20180250116
    Abstract: Packaging systems and methods are disclosed for storing a bioprosthetic device comprising a bioprosthetic tissue and maintaining a target relative humidity across a temperature range. The packaging system includes a sealed package defining an internal space having an internal volume, and a humidity control device and bioprosthetic device within the internal space. The humidity control device includes a barrier defining an enclosed space and a humidity control solution comprising glycerol in the enclosed space. At least a portion of the barrier comprises a gas-permeable membrane. The target relative humidity is provided within the internal volume of the sealed package and the control device maintains the target relative humidity across the temperature range by selectively liberating and absorbing water vapor.
    Type: Application
    Filed: March 1, 2018
    Publication date: September 6, 2018
    Applicant: Edwards Lifesciences Corporation
    Inventors: Ryan Mourhatch, Gregory G. Liburd
  • Publication number: 20180206969
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly can be used for storing a bioprosthetic heart valve without a liquid preservative solution. The packaging assembly can comprise a holder comprising an engagement structure configured for removably attaching a bioprosthetic heart valve, the holder comprising a shaft. The packaging assembly can also include a storage tray comprising a cavity and an insert sized to provide a cap over the cavity of the storage tray, the insert comprising a slot having a closed central end and an open outer periphery. The shaft of the holder can be non-rotatably retained at the closed central end, wherein the insert defines a flat, generally planar disc comprising at least one of outward projections and flow passages.
    Type: Application
    Filed: March 26, 2018
    Publication date: July 26, 2018
    Inventors: Gregory G. Liburd, Abishek Gautam
  • Patent number: 9937030
    Abstract: A packaging assembly for storing a bioprosthetic heart valve without a liquid preservative solution is provided. The packaging system includes a holder, a cage, a storage tray and an insert sized to provide a cap over the cavity of the storage tray. The holder comprises a shaft and an engagement structure configured for removably attaching a bioprosthetic heart valve. The cage comprises an upper end, the cage configured to at least partially enclose the bioprosthetic heart valve. The storage tray comprises a cavity for housing the cage. The insert comprises a slot having a closed central end and an open outer periphery, the shaft of the holder being non-rotatably retained at the closed central end. The insert defines a flat, generally planar disc comprising at least one of outward projections and flow passages. The packaging assembly does not comprise a liquid preservative solution.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: April 10, 2018
    Assignee: Edwards Lifesciences Corporation
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Publication number: 20170112608
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly includes a primary sterile barrier feat permits gas sterilization of the tissue implant, and a secondary sterile barrier that prevents oxidation of the implant during storage. Tissue heart valves are placed inside, an inner tray and sealed with, a gas-permeable lid. The inner tray is placed within an outer sterile barrier and the assembly is sterilized. The outer sterile barrier may include a double seal so that a first gas-permeable seal can be closed for sterilization, after which a second gas-impermeable seal is closed to seal out any further oxygen, contact with the tissue implant Alternatively, the inner tray is placed within a sterile pouch and the assembly gas-sterilized, and then the entire assembly is placed within another pouch that provides an impermeable barrier.
    Type: Application
    Filed: January 6, 2017
    Publication date: April 27, 2017
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Patent number: 9539080
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly includes a primary sterile barrier that permits gas sterilization of the tissue implant, and a secondary sterile barrier that prevents oxidation of the implant during storage. Tissue heart valves are placed inside an inner tray and sealed with a gas-permeable lid. The inner tray is placed within an outer sterile barrier and the assembly is sterilized. The outer sterile barrier may include a double seal so that a first gas-permeable seal can be closed for sterilization, after which a second gas-impermeable seal is closed to seal out any further oxygen contact with the tissue implant. Alternatively, the inner tray is placed within a sterile pouch and the assembly gas-sterilized, and then the entire assembly is placed within another pouch that provides an impermeable barrier.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: January 10, 2017
    Assignee: Edwards Lifesciences Corporation
    Inventors: Gregory G. Liburd, Abhishek Gautam
  • Publication number: 20140202908
    Abstract: Packaging for prosthetic heart valves including an assembly for stabilizing dry prosthetic tissue implants such as heart valves during storage. The packaging assembly includes a primary sterile barrier that permits gas sterilization of the tissue implant, and a secondary sterile barrier that prevents oxidation of the implant during storage. Tissue heart valves are placed inside an inner tray and sealed with a gas-permeable lid. The inner tray is placed within an outer sterile barrier and the assembly is sterilized. The outer sterile barrier may include a double seal so that a first gas-permeable seal can be closed for sterilization, after which a second gas-impermeable seal is closed to seal out any further oxygen contact with the tissue implant. Alternatively, the inner tray is placed within a sterile pouch and the assembly gas-sterilized, and then the entire assembly is placed within another pouch that provides an impermeable barrier.
    Type: Application
    Filed: March 20, 2014
    Publication date: July 24, 2014
    Applicant: EDWARDS LIFESCIENCES CORPORATION
    Inventors: Gregory G. Liburd, Abhishek Gautam