Patents by Inventor David E. Lizdas

David E. Lizdas 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: 11322048
    Abstract: A medical tool insertion simulation apparatus. The medical tool insertion simulation apparatus may comprise a syringe having an injection end, and an elongated member protruding from the injection end of the syringe. The elongated member may be configured to decrease a length of protrusion of the elongated member from the injection end of the syringe. The elongated member may be configured to receive at least one first sensor configured to indicate position information relating to the elongated member. At least one computer-readable storage medium encoded with executable instructions that, when executed by at least one processor, cause the at least one processor to perform a method for simulating medical tool insertion. A medical tool insertion simulation system.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: May 3, 2022
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: Drew B. Gonsalves, David E. Lizdas, Samsun Lampotang
  • Publication number: 20200297967
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
  • Patent number: 10722679
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 28, 2020
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
  • Publication number: 20180225992
    Abstract: A medical tool insertion simulation apparatus. The medical tool insertion simulation apparatus may comprise a syringe having an injection end, and an elongated member protruding from the injection end of the syringe. The elongated member may be configured to decrease a length of protrusion of the elongated member from the injection end of the syringe. The elongated member may be configured to receive at least one first sensor configured to indicate position information relating to the elongated member. At least one computer-readable storage medium encoded with executable instructions that, when executed by at least one processor, cause the at least one processor to perform a method for simulating medical tool insertion. A medical tool insertion simulation system.
    Type: Application
    Filed: September 15, 2016
    Publication date: August 9, 2018
    Applicant: University of Florida Research Foundation, Incorporated
    Inventors: Drew B. Gonsalves, David E. Lizdas, Samsun Lampotang
  • Patent number: 9962516
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: May 8, 2018
    Assignee: University of Florida Research Foundation, Incorporated
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
  • Publication number: 20180015251
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 18, 2018
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
  • Publication number: 20130172840
    Abstract: Embodiments of the invention provide methods and devices for improved drainage systems and tubing. In one embodiment, a context-sensitive flow interrupter is provided that inhibits or facilitates flow of fluid when engaged with a mating holder. In another embodiment, outflow is optimized through control of the pressure in gas pockets in a tube, drainage tube or assembly. In one such embodiment, gas pockets are vented to inhibit excessive back-pressure or suction on an organ, vessel or cavity being drained. In another such embodiment, loops in the tubes are avoided by using a mechanical template in the form of a groove or peg assembly to thread the slack in the drainage tube to generate a monotonic gradient. In another embodiment, such as for active drainage systems, a bypass channel is provided that allows an applied vacuum to go around an obstruction created by the collection of fluid in an undrained dependent loop.
    Type: Application
    Filed: September 8, 2011
    Publication date: July 4, 2013
    Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
    Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking