Patents by Inventor Rodney L. Ross
Rodney L. Ross 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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Patent number: 11896524Abstract: A tissue removal device includes a hollow needle, an ultrasonic transducer for mechanically vibrating the needle, an aspiration line communicating with the needle, and a vacuum pulsing device for generating vacuum pulses in the needle. The device may be utilized for breaking up tissue by phacoemulsification, vacuum pulsing, or both.Type: GrantFiled: October 11, 2019Date of Patent: February 13, 2024Assignee: Med-Logics, Inc.Inventors: Rodney L. Ross, James Dennewill
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Publication number: 20200054487Abstract: A tissue removal device includes a hollow needle, an ultrasonic transducer for mechanically vibrating the needle, an aspiration line communicating with the needle, and a vacuum pulsing device for generating vacuum pulses in the needle. The device may be utilized for breaking up tissue by phacoemulsification, vacuum pulsing, or both.Type: ApplicationFiled: October 11, 2019Publication date: February 20, 2020Inventors: Rodney L. Ross, James Dennewill
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Patent number: 10441460Abstract: A tissue removal device includes a hollow needle, an ultrasonic transducer for mechanically vibrating the needle, an aspiration line communicating with the needle, and a vacuum pulsing device for generating vacuum pulses in the needle. The device may be utilized for breaking up tissue by phacoemulsification, vacuum pulsing, or both.Type: GrantFiled: April 18, 2014Date of Patent: October 15, 2019Assignee: MED-LOGICS, INC.Inventors: Rodney L. Ross, James Dennewill
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Patent number: 9999710Abstract: A tissue removal device includes a rigid aspiration cannula, a valve communicating with the aspiration cannula in a fluid-sealed manner, and a pneumatically-driven actuator configured for moving the valve between an open position and a closed position, wherein at the open position the valve defines an aspiration path through the aspiration cannula and the valve, and at the closed position the valve prevents vacuum from being applied at the distal tip.Type: GrantFiled: April 26, 2013Date of Patent: June 19, 2018Assignee: Med-Logics, Inc.Inventors: Rodney L. Ross, James Dennewill, Gregg Hughes, Nader Nazarifar
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Patent number: 9561129Abstract: A tissue removal device includes a rigid aspiration cannula, a valve communicating with the aspiration cannula in a fluid-sealed manner, and a pneumatically-driven actuator configured for moving the valve between an open position and a closed position, wherein at the open position the valve defines an aspiration path through the aspiration cannula and the valve, and at the closed position the valve prevents vacuum from being applied at the distal tip.Type: GrantFiled: September 4, 2012Date of Patent: February 7, 2017Inventors: Rodney L. Ross, James Dennewill, Gregg Hughes
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Patent number: 9370611Abstract: A tissue removal device includes a cannula that can aspirate tissue, and a thermal element located at a tip of the cannula that can apply localized heat to the tissue to be aspirated. The tissue removal device may also include a device for applying a vacuum in the cannula, which may be configured for applying vacuum pulses according to a controlled pulse rate and vacuum level. The tissue removal device may also include a device for applying the heat at the tip according to a controllable pulse rate and power level.Type: GrantFiled: January 7, 2010Date of Patent: June 21, 2016Assignee: Med-Logics, Inc.Inventors: Rodney L. Ross, Gregg Hughes
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Publication number: 20160058614Abstract: A tissue removal device includes a hollow needle, an ultrasonic transducer for mechanically vibrating the needle, an aspiration line communicating with the needle, and a vacuum pulsing device for generating vacuum pulses in the needle. The device may be utilized for breaking up tissue by phacoemulsification, vacuum pulsing, or both.Type: ApplicationFiled: April 18, 2014Publication date: March 3, 2016Inventors: Rodney L. Ross, James Dennewill
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Publication number: 20150306286Abstract: A tissue removal device includes a rigid aspiration cannula, a valve communicating with the aspiration cannula in a fluid-sealed manner, and a pneumatically-driven actuator configured for moving the valve between an open position and a closed position, wherein at the open position the valve defines an aspiration path through the aspiration cannula and the valve, and at the closed position the valve prevents vacuum from being applied at the distal tip.Type: ApplicationFiled: April 26, 2013Publication date: October 29, 2015Inventors: Rodney L. ROSS, James DENNEWILL, Gregg HUGHES, Nader NAZARIFAR
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Patent number: 9125731Abstract: A microkeratome cutting head includes a head structure, an applanation plate, and a stromal plate. The head structure may include a blade cavity for receiving a blade and a blade opening through which the blade extends. The blade is configured for creating a corneal flap at a corneal flap thickness. The applanation plate is disposed at an elevation above the stromal plate plane. The elevation difference is approximately equal to the corneal flap thickness. An artificial anterior chamber (AAC) system is used to hold the donor eye for interfacing with the microkeratome. The AAC system includes an optional pressure valve and pressure gauge in a closed loop system for the user or surgeon to control line pressure applied to the donor eye during the procedure.Type: GrantFiled: September 1, 2011Date of Patent: September 8, 2015Assignee: Med-Logics, Inc.Inventors: Rodney L. Ross, James R. Dennewill
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Publication number: 20130060210Abstract: A tissue removal device includes a rigid aspiration cannula, a valve communicating with the aspiration cannula in a fluid-sealed manner, and a pneumatically-driven actuator configured for moving the valve between an open position and a closed position, wherein at the open position the valve defines an aspiration path through the aspiration cannula and the valve, and at the closed position the valve prevents vacuum from being applied at the distal tip.Type: ApplicationFiled: September 4, 2012Publication date: March 7, 2013Applicant: MEDLOGICS, INC.Inventors: RODNEY L. ROSS, JAMES DENNEWILL, GREGG HUGHES
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Patent number: 8376983Abstract: Irrigation fluid is aspirated from an eye and through an aspiration instrument by operating a vacuum pump, including moving first and second plungers between respective suction strokes and discharge strokes. Vacuum pressure at an input side of the pump is maintained at a desired vacuum pressure setting by controlling speeds and directions of the plungers, and controlling positions of input and output valves communicating with cylinders in which the plungers move. Controlling is based on the pressure setting and measured pressures in the cylinders. Vacuum pressure is maintained while transitioning from the suction stroke of the first plunger to the suction stroke of the second plunger, by synchronizing respective positions of the plungers and the valves, such that initiation of the suction stroke of the second plunger during the transitioning is delayed until a vacuum pressure in the second cylinder is equal to a vacuum pressure in the first cylinder.Type: GrantFiled: February 28, 2011Date of Patent: February 19, 2013Assignee: Enlighten Technologies, Inc.Inventors: Rodney L. Ross, Gregg Hughes
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Publication number: 20120089080Abstract: A tissue removal device includes a cannula that can aspirate tissue under a vacuum applied in the cannula, and a hermetically sealed fluid regulator in fluid communication with the cannula that generates vacuum pulses according to a controllable pulse rate and flow rate. The tissue removal device may also have a vacuum conduit having two or more conduit sections where the inner diameter of an upstream conduit section is smaller than the inner diameter of a succeeding conduit section. A device is also provided for applying an elastic membrane to an open end of the cannula to allow a user to remove any remaining cortical material after cataract material has first been removed from the eye by vacuum pressure applied in the cannula.Type: ApplicationFiled: September 16, 2011Publication date: April 12, 2012Applicant: ENLIGHTEN TECHNOLOGIES, INC.Inventors: Rodney L. Ross, James Dennewill, Gregg Hughes
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Publication number: 20120065655Abstract: A microkeratome cutting head includes a head structure, an applanation plate, and a stromal plate. The head structure may include a blade cavity for receiving a blade and a blade opening through which the blade extends. The blade is configured for creating a corneal flap at a corneal flap thickness. The applanation plate is disposed at an elevation above the stromal plate plane. The elevation difference is approximately equal to the corneal flap thickness. An artificial anterior chamber (AAC) system is used to hold the donor eye for interfacing with the microkeratome. The AAC system includes an optional pressure valve and pressure gauge in a closed loop system for the user or surgeon to control line pressure applied to the donor eye during the procedure.Type: ApplicationFiled: September 1, 2011Publication date: March 15, 2012Applicant: MED-LOGICS, INC.Inventors: RODNEY L. ROSS, JAMES R. DENNEWILL
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Publication number: 20110196320Abstract: Irrigation fluid is aspirated from an eye and through an aspiration instrument by operating a vacuum pump, including moving first and second plungers between respective suction strokes and discharge strokes. Vacuum pressure at an input side of the pump is maintained at a desired vacuum pressure setting by controlling speeds and directions of the plungers, and controlling positions of input and output valves communicating with cylinders in which the plungers move. Controlling is based on the pressure setting and measured pressures in the cylinders. Vacuum pressure is maintained while transitioning from the suction stroke of the first plunger to the suction stroke of the second plunger, by synchronizing respective positions of the plungers and the valves, such that initiation of the suction stroke of the second plunger during the transitioning is delayed until a vacuum pressure in the second cylinder is equal to a vacuum pressure in the first cylinder.Type: ApplicationFiled: February 28, 2011Publication date: August 11, 2011Applicant: ENLIGHTEN TECHNOLOGIES, INC.Inventors: Rodney L. Ross, Gregg Hughes
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Publication number: 20100191178Abstract: A tissue removal device includes a cannula that can aspirate tissue, and a thermal element located at a tip of the cannula that can apply localized heat to the tissue to be aspirated. The tissue removal device may also include a device for applying a vacuum in the cannula, which may be configured for applying vacuum pulses according to a controlled pulse rate and vacuum level. The tissue removal device may also include a device for applying the heat at the tip according to a controllable pulse rate and power level.Type: ApplicationFiled: January 7, 2010Publication date: July 29, 2010Applicant: ENLIGHTEN TECHNOLOGIES, INC.Inventors: Rodney L. Ross, Gregg Hughes
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Publication number: 20090234333Abstract: A microkeratome cutting head includes a head structure, an applanation plate, and a stromal plate. The head structure may include a blade cavity for receiving a blade and a blade opening through which the blade extends. The blade is configured for creating a corneal flap at a corneal flap thickness. The applanation plate is disposed at an elevation above the stromal plate plane. The elevation difference is approximately equal to the corneal flap thickness.Type: ApplicationFiled: February 12, 2009Publication date: September 17, 2009Inventors: Rodney L. Ross, James R. Dennewill, Shawn Wong, Gregg Hughes