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).
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Publication number: 20240316312Abstract: 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: ApplicationFiled: June 5, 2024Publication date: September 26, 2024Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Patent number: 12029861Abstract: 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: GrantFiled: June 2, 2020Date of Patent: July 9, 2024Assignee: University of Florida Research Foundation, IncorporatedInventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Patent number: 11322048Abstract: 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: GrantFiled: March 14, 2018Date of Patent: May 3, 2022Assignee: University of Florida Research Foundation, IncorporatedInventors: Drew B. Gonsalves, David E. Lizdas, Samsun Lampotang
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Publication number: 20200297967Abstract: 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: ApplicationFiled: June 2, 2020Publication date: September 24, 2020Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Patent number: 10722679Abstract: 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: GrantFiled: September 28, 2017Date of Patent: July 28, 2020Assignee: University of Florida Research Foundation, IncorporatedInventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Publication number: 20180225992Abstract: 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: ApplicationFiled: September 15, 2016Publication date: August 9, 2018Applicant: University of Florida Research Foundation, IncorporatedInventors: Drew B. Gonsalves, David E. Lizdas, Samsun Lampotang
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Patent number: 9962516Abstract: 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: GrantFiled: September 8, 2011Date of Patent: May 8, 2018Assignee: University of Florida Research Foundation, IncorporatedInventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Publication number: 20180015251Abstract: 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: ApplicationFiled: September 28, 2017Publication date: January 18, 2018Inventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking
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Publication number: 20130172840Abstract: 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: ApplicationFiled: September 8, 2011Publication date: July 4, 2013Applicant: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATEDInventors: Samsun Lampotang, Nikolaus Gravenstein, Wilhelm K. Schwab, David E. Lizdas, Francesca K. Enneking