Patents by Inventor James Chon
James Chon 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: 11185442Abstract: A phacoemulsification needle comprises a hollow shaft with an interior surface, an exterior surface, and a distal end terminating in a distal edge. The shaft has a central bore extending there through. The central bore is defined by the interior surface of the hollow shaft. A first over mold is located on the exterior surface and distal edge of the hollow shaft. The first over mold covers at least a portion of a periphery of the exterior surface of the hollow shaft, the distal edge, and terminates at the central bore.Type: GrantFiled: May 8, 2019Date of Patent: November 30, 2021Assignee: Alcon Inc.Inventors: James Chon, Kristine Velasco, Rudolph Zacher
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Publication number: 20190262176Abstract: A phacoemulsification needle comprises a hollow shaft with an interior surface, an exterior surface, and a distal end terminating in a distal edge. The shaft has a central bore extending there through. The central bore is defined by the interior surface of the hollow shaft. A first over mold is located on the exterior surface and distal edge of the hollow shaft. The first over mold covers at least a portion of a periphery of the exterior surface of the hollow shaft, the distal edge, and terminates at the central bore.Type: ApplicationFiled: May 8, 2019Publication date: August 29, 2019Inventors: James Chon, Kristine Velasco, Rudolph Zacher
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Patent number: 9681947Abstract: An intraocular lens delivery system has an injector body, a plunger, a nozzle portion, and a heater. The plunger is slidably movable within the injector body. The nozzle portion is located on a distal end of the injector body and has a hollow interior adapted for receiving the intraocular lens. The heater is integrated with the intraocular lens delivery system and is adapted to heat the intraocular lens.Type: GrantFiled: October 23, 2006Date of Patent: June 20, 2017Assignee: NOVARTIS AGInventors: Mikhail Boukhny, James Chon, David Downer, Steve Van Noy
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Patent number: 9283113Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.Type: GrantFiled: May 22, 2014Date of Patent: March 15, 2016Assignee: Novartis AGInventors: James Chon, John Zhongyu Yan
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Publication number: 20150335483Abstract: A surgical hand piece comprises a generally cylindrical horn with a flange on one end. The flange has a central hub and first and second protruding sections. First and second polarized piezoelectric crystals are held against the flange such that rotative or torsional motion is induced in the horn.Type: ApplicationFiled: May 22, 2014Publication date: November 26, 2015Applicant: NOVARTIS AGInventors: JAMES CHON, JOHN ZHONGYU YAN
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Publication number: 20150112356Abstract: A phacoemulsification needle comprises a hollow shaft with an interior surface, an exterior surface, and a distal end terminating in a distal edge. The shaft has a central bore extending there through. The central bore is defined by the interior surface of the hollow shaft. A first over mold is located on the exterior surface and distal edge of the hollow shaft. The first over mold covers at least a portion of a periphery of the exterior surface of the hollow shaft, the distal edge, and terminates at the central bore.Type: ApplicationFiled: October 23, 2013Publication date: April 23, 2015Inventors: JAMES CHON, KRISTINE VELASCO, RUDOLPH ZACHER
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Patent number: 8900249Abstract: A method of delivering an intraocular lens into an eye is disclosed. The intraocular lens is heated. The intraocular lens is maintained within a desired temperature range. The intraocular lens is injected into the eye when the intraocular lens is within the desired temperature range.Type: GrantFiled: October 23, 2006Date of Patent: December 2, 2014Assignee: Novartis AGInventors: Mikhail Boukhny, James Chon, David Downer, Steve Van Noy
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Patent number: 8814894Abstract: A handpiece having at least one set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency.Type: GrantFiled: September 11, 2009Date of Patent: August 26, 2014Assignee: Novartis AGInventors: Mikhail Boukhny, James Chon, Ahmad Salehi
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Patent number: 8808308Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: GrantFiled: January 27, 2012Date of Patent: August 19, 2014Assignee: Alcon Research, Ltd.Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Patent number: 8771301Abstract: A handpiece having a single set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. Preferably, the two drive frequencies are not coincident, but provided in non-overlapping pulses.Type: GrantFiled: September 11, 2009Date of Patent: July 8, 2014Assignee: Alcon Research, Ltd.Inventors: Mikhail Boukhny, James Chon
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Patent number: 8657835Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: GrantFiled: January 27, 2012Date of Patent: February 25, 2014Assignee: Alcon Research, Ltd.Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Publication number: 20130197531Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Publication number: 20130197532Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Patent number: 8308736Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: GrantFiled: October 13, 2008Date of Patent: November 13, 2012Assignee: Alcon Research, Ltd.Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Patent number: 8157797Abstract: A capsularhexis device includes a loop-shaped cutting portion formed from flexible, superelastic metal strips separated by an insulating layer, and configured so that the cutting portion may be retracted into a tubular insertion cartridge for insertion into and removal from the eye, and extended from the insertion cartridge for the capsularhexis procedure. In its extended configuration, the cutting portion forms a cutting loop such that a free end of the cutting loop is proximate a connecting end of the cutting loop, with the connecting end joined to a shaft portion. The shaft portion extends into the insertion capsule, and is used to move the cutting portion in and out of the insertion cartridge.Type: GrantFiled: January 12, 2009Date of Patent: April 17, 2012Assignee: Alcon Research, Ltd.Inventors: Mikhail Boukhny, James Chon
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Publication number: 20100179544Abstract: A capsularhexis device includes a loop-shaped cutting portion formed from flexible, superelastic metal strips separated by an insulating layer, and configured so that the cutting portion may be retracted into a tubular insertion cartridge for insertion into and removal from the eye, and extended from the insertion cartridge for the capsularhexis procedure. In its extended configuration, the cutting portion forms a cutting loop such that a free end of the cutting loop is proximate a connecting end of the cutting loop, with the connecting end joined to a shaft portion. The shaft portion extends into the insertion capsule, and is used to move the cutting portion in and out of the insertion cartridge.Type: ApplicationFiled: January 12, 2009Publication date: July 15, 2010Inventors: Mikhail Boukhny, James Chon
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Publication number: 20100094309Abstract: An intraocular lens injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. An electric drive system longitudinally translates the plunger so that its tip engages an insertion cartridge to fold and displace an intraocular lens disposed within and to inject the folded lens into the lens capsule of an eye. A control circuit is configured to start translation of the plunger, responsive to user input, to detect at least one fault condition based on a counter-electromotive force produced by the electric motor, and to stop translation of the plunger assembly responsive to the detected fault condition, which may comprise excessive resistance to forward or rearward translation of the plunger or insufficient resistance to forward translation of the plunger.Type: ApplicationFiled: October 13, 2008Publication date: April 15, 2010Inventors: Mikhail Boukhny, Bill Chen, James Chon
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Publication number: 20100036256Abstract: An ultrasonic hand piece has a horn, piezoelectric crystals, and a cutting tip. The piezoelectric crystals and cutting tip are coupled to the horn. A centerline of the piezoelectric crystals is offset from a center line of the cutting tip such that oscillatory movement is produced in the cutting tip when the piezoelectric crystals are excited.Type: ApplicationFiled: August 8, 2008Publication date: February 11, 2010Inventors: Mikhail Boukhny, James Chon
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Publication number: 20100004586Abstract: A handpiece having at least one set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency.Type: ApplicationFiled: September 11, 2009Publication date: January 7, 2010Inventors: Mikhail Boukhny, James Chon, Ahmad Salehi
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Publication number: 20100004585Abstract: A handpiece having a single set of piezoelectric elements polarized to produce longitudinal motion when excited at the relevant resonant frequency. The piezoelectric crystals are connected to an ultrasonic horn to which a cutting tip is attached. The horn and/or the cutting tip contains a plurality of diagonal slits or grooves. The slits or grooves produce optimized torsional movement in the cutting tip when the piezoelectric crystals are excited at a second resonant frequency. Preferably, the two drive frequencies are not coincident, but provided in non-overlapping pulses.Type: ApplicationFiled: September 11, 2009Publication date: January 7, 2010Inventors: Mikhail Boukhny, James Chon