Patents by Inventor Leonid Bunegin

Leonid Bunegin 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: 20230404066
    Abstract: A perfusion system includes a perfusate source and a perfusion distributor coupled to the perfusate source and configured to convey oxygen containing perfusate from the perfusate source to tissue and exhaust carbon dioxide generated by the tissue. A carbon dioxide sensor is coupled to sense the carbon dioxide generated by the tissue, which can then be used to provide a measure of tissue viability.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 21, 2023
    Inventors: Israel Jessop, Exal Cisneros, Leonid Bunegin
  • Publication number: 20230323903
    Abstract: Novel fluidic oscillator (FO) designs that can incorporate features to allow for performance tunability and pulsatile outlet flow. Novel fluidic designs that utilize 3D space are also incorporated. All novel design features mentioned herein can be combined in any fashion with each other.
    Type: Application
    Filed: August 14, 2021
    Publication date: October 12, 2023
    Inventors: LEONID BUNEGIN, ZACHARY FALLON, CHRISTOPHER COMBS, DANIEL PORTILLO, Lyle R. Hood
  • Patent number: 11000031
    Abstract: A method of decellularizing a tissue includes disposing the tissue within a device, the device. The device includes a container, first and second electrodes disposed within the container and defining a space between the first and second electrodes to receive the tissue, a perfusion pump, and a conduit connected to the perfusion pump to transport a decellularization composition from the pump into the tissue. The method further includes disposing the decellularization composition within the container to surround the tissue and contact the first and second electrodes, applying an electric potential across the first and second electrodes, and perfusing the decullarization composition into the tissue.
    Type: Grant
    Filed: May 12, 2018
    Date of Patent: May 11, 2021
    Assignee: FABRICO TECHNOLOGY INC
    Inventors: Robert C. Chin, Leonid Bunegin
  • Publication number: 20210120809
    Abstract: Devices and methods for vascular tissue perfusion. In certain examples, the pressurized oxygen is repetitively pulsed between a lower pressure and a higher pressure and a flexible membrane is deflected to control fluid flow.
    Type: Application
    Filed: June 20, 2019
    Publication date: April 29, 2021
    Applicant: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventor: Leonid BUNEGIN
  • Publication number: 20190320649
    Abstract: Devices and methods for vascular tissue perfusion. In certain embodiments, the pressurized oxygen is repetitively pulsed between a lower pressure and a higher pressure and a flexible membrane is deflected to control fluid flow.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 24, 2019
    Applicant: THE BOARD OF REGENTS OF THE UNIVERSITY OF TEXAS SYSTEM
    Inventor: Leonid BUNEGIN
  • Patent number: 10207090
    Abstract: Traditional and existing methods of cervical ripening employ a Foley Bulb designed for and typically used in bladder procedures. Consequently, the application to the cervix is sub-optimal. The described device resolves this and related limitations. The device includes a balloon that has been designed to accommodate the cervix geometry, and which can adapt to normal differences in the individual. Further improvements are attained by the use of a supporting device which couples the cervix ripening device to the individual.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: February 19, 2019
    Assignee: Board of Regents of the University of Texas System
    Inventors: Brent M. Nowak, Leonid Bunegin, Pamela G. Ferguson
  • Publication number: 20180325102
    Abstract: A method of decellularizing a tissue includes disposing the tissue within a device, the device. The device includes a container, first and second electrodes disposed within the container and defining a space between the first and second electrodes to receive the tissue, a perfusion pump, and a conduit connected to the perfusion pump to transport a decellularization composition from the pump into the tissue. The method further includes disposing the decellularization composition within the container to surround the tissue and contact the first and second electrodes, applying an electric potential across the first and second electrodes, and perfusing the decullarization composition into the tissue.
    Type: Application
    Filed: May 12, 2018
    Publication date: November 15, 2018
    Inventors: Robert C. Chin, Leonid Bunegin
  • Publication number: 20140302481
    Abstract: A device for decellularizing a tissue includes a container, first and second electrodes disposed within the container and defining a space between the first and second electrodes to receive the tissue, a perfusion pump, and a conduit connected to the perfusion pump to transport a decellularization solution from the pump into the tissue.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 9, 2014
    Applicant: Fabrico, Inc.
    Inventors: Robert C. Chin, Leonid Bunegin
  • Patent number: 8685709
    Abstract: In one embodiment, a preservation apparatus is described that includes a storage compartment. The storage compartment is configured to hold an organ or tissue and a preservation fluid. A cover assembly is configured to engage the storage compartment. The cover assembly includes a support element, wherein the support element together with the storage compartment define a storage chamber. The cover assembly also includes a lid and a gas permeable membrane disposed between the lid and the support element. The gas permeable membrane and the support element together define a perfusion chamber configured to hold preservation fluid and an organ or tissue during use.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 1, 2014
    Assignee: Board of Regents of the University of Texas System
    Inventors: Leonid Bunegin, Edward F. Gelineau
  • Publication number: 20110217689
    Abstract: In one embodiment, a preservation apparatus is described that includes a storage compartment. The storage compartment is configured to hold an organ or tissue and a preservation fluid. A cover assembly is configured to engage the storage compartment. The cover assembly includes a support element, wherein the support element together with the storage compartment define a storage chamber. The cover assembly also includes a lid and a gas permeable membrane disposed between the lid and the support element. The gas permeable membrane and the support element together define a perfusion chamber configured to hold preservation fluid and an organ or tissue during use.
    Type: Application
    Filed: September 24, 2010
    Publication date: September 8, 2011
    Inventors: Leonid Bunegin, Edward F. Gelineau
  • Publication number: 20110212431
    Abstract: In one embodiment, a preservation apparatus is described that includes a storage compartment. The storage compartment is configured to hold an organ or tissue and a preservation fluid. A cover assembly is configured to engage the storage compartment. The cover assembly includes a support element, wherein the support element together with the storage compartment define a storage chamber. The cover assembly also includes a lid and a gas permeable membrane disposed between the lid and the support element. The gas permeable membrane and the support element together define a perfusion chamber configured to hold preservation fluid and an organ or tissue during use.
    Type: Application
    Filed: September 24, 2010
    Publication date: September 1, 2011
    Inventors: Leonid Bunegin, Edward F. Gelineau
  • Publication number: 20100086907
    Abstract: In one embodiment, a preservation apparatus is described that includes a storage compartment. The storage compartment is configured to hold an organ or tissue and a preservation fluid. A cover assembly is configured to engage the storage compartment. The cover assembly includes a support element, wherein the support element together with the storage compartment define a storage chamber. The cover assembly also includes a lid and a gas permeable membrane disposed between the lid and the support element. The gas permeable membrane and the support element together define a perfusion chamber configured to hold preservation fluid and an organ or tissue during use.
    Type: Application
    Filed: September 28, 2009
    Publication date: April 8, 2010
    Inventors: Leonid Bunegin, Edward F. Gelineau
  • Patent number: 5385821
    Abstract: A method and apparatus is provided for long-term extracorporeal preservation of living tissue. A living tissue preservation device including a gas permeable membrane and perfusate allows oxygenation of the living tissue. The gas permeable membrane allows gas from a cyclically pumped source to permeate and expand the membrane, simultaneously oxygenating the perfusate and pumping the oxygen-enriched perfusate through the living tissue. Simply constructed of a few basic components into a single integrated container, the living tissue preservation device is capable of operating in many physical orientations, and requires no electrical power for operation. Also provided is a portable cold storage unit that is capable of receiving a living tissue preservation device and maintaining the tissue in the device at a substantially constant temperature of 4.degree. C..+-.1.degree. C. for at least 24 hours.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: January 31, 1995
    Assignee: Board of Regents, The University of Texas System
    Inventors: Bobby J. O'Dell, Leonid Bunegin
  • Patent number: 5362622
    Abstract: A method and apparatus is provided for long-term extracorporeal preservation of living tissue. A living tissue preservation device including a gas permeable membrane and perfusate allows oxygenation of the living tissue. The gas permeable membrane allows gas from a cyclically pumped source to permeate and expand the membrane, simultaneously oxygenating the perfusate and pumping the oxygen-enriched perfusate through the living tissue. Simply constructed of a few basic components into a single integrated container, the living tissue preservation device is capable of operating in many physical orientations, and requires no electrical power for operation. Also provided is a portable cold storage unit that is capable of receiving a living tissue preservation device and maintaining the tissue in the device at a substantially constant temperature of 4.degree. C..+-.1.degree. C. for at least 24 hours.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: November 8, 1994
    Assignee: Board of Regents, The University of Texas System
    Inventors: Bobby J. O'Dell, Leonid Bunegin
  • Patent number: 5024220
    Abstract: A flexible tube connector adapted for use in delivering a general anesthesia to patients via a nasotracheal tube is disclosed. More specifically, the present invention relates to a quick insertion nasotracheal tube connector which is designed to facilitate access to the oral cavity and face.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: June 18, 1991
    Assignee: Board of Regents, The University of Texas System
    Inventors: W. Corbett Holmgreen, Leonid Bunegin
  • Patent number: 4995401
    Abstract: The present invention relates to a device for measuring anterior fontanelle pressure. A particular embodiment of this device comprises a rigid housing having an opening at its base end adapted for engaging a cranium and an aperture adapted to receive means for sensing pressure. The device may also include a flexible membrane disposed over the opening and adapted for engaging an anterior fontanelle. In this embodiment, the housing and membrane cooperate to define a cavity adapted to receive a fluid.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: February 26, 1991
    Assignee: Board of Regents, The University of Texas System
    Inventors: Leonid Bunegin, Maurice S. Albin
  • Patent number: 4909069
    Abstract: Method and apparatus for detecting leaks in a rubber glove or the like. The wearer of rubber gloves connects a clip to his ear and places each glove-covered hand individually into electrolyte liquid in an electrically conductive receptacle. A circuit including a buzzer or beeper sounds if there is a leak in the glove. The circuit includes a clip connected to the wearer's ear as well as the beeper, the electrolyte, a battery and the receptacle. An alternative embodiment includes a removable disposable electrically non-conductive receptacle for the electrolyte liquid with the circuit including an electrical conductor cemented to the inside of the receptacle and in the circuit.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: March 20, 1990
    Assignee: Utah Medical Products, Inc.
    Inventors: Maurice S. Albin, Leonid Bunegin