Patents by Inventor Tu Cam Tran
Tu Cam Tran 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: 20230157813Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and a ramp may be formed on the interior surface so as to cause a leading haptic of an intraocular lens (IOL) being advanced through the passage to lift above a surface of an optic of the IOL to ensure proper folding of the IOL.Type: ApplicationFiled: January 4, 2023Publication date: May 25, 2023Inventors: Kyle Brown, Tu Cam Tran, Yinghui Wu, Stephen J. Van Noy
-
Patent number: 11571294Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and a ramp may be formed on the interior surface so as to cause a leading haptic of an intraocular lens (IOL) being advanced through the passage to lift above a surface of an optic of the IOL to ensure proper folding of the IOL.Type: GrantFiled: January 23, 2020Date of Patent: February 7, 2023Assignee: Alcon Inc.Inventors: Kyle Brown, Tu Cam Tran, Yinghui Wu, Stephen J Van Noy
-
Patent number: 11000367Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and one or more rails may be formed on the interior surface so as to displace an optic of an intraocular lens (IOL) being advanced through the passage towards a portion of the interior surface disposed opposite the one or more rails.Type: GrantFiled: December 12, 2017Date of Patent: May 11, 2021Inventors: Yinghui Wu, Kyle Brown, Tu Cam Tran, Douglas Brent Wensrich, Todd Taber, Jyoti Bhatia
-
Publication number: 20200163754Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and a ramp may be formed on the interior surface so as to cause a leading haptic of an intraocular lens (IOL) being advanced through the passage to lift above a surface of an optic of the IOL to ensure proper folding of the IOL.Type: ApplicationFiled: January 23, 2020Publication date: May 28, 2020Inventors: Kyle Brown, Tu Cam Tran, Yinghui Wu, Stephen J. Van Noy
-
Patent number: 10568735Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and a ramp may be formed on the interior surface so as to cause a leading haptic of an intraocular lens (IOL) being advanced through the passage to lift above a surface of an optic of the IOL to ensure proper folding of the IOL.Type: GrantFiled: December 12, 2017Date of Patent: February 25, 2020Assignee: ALCON INC.Inventors: Kyle Brown, Tu Cam Tran, Yinghui Wu, Stephen J Van Noy
-
Patent number: 10390941Abstract: An IOL injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. The device is configured so that when the plunger is translated towards the front of the device, its tip engages an intraocular lens insertion cartridge mounted at or near the front end of the housing. The IOL injection device further comprises a control circuit. The control circuit is configured to perform the steps of advancing the plunger to a critical point at which an axial compressive force on the lens suddenly increases, retracting the plunger from the critical point to a sufficient distance for material of the intraocular lens to relax, pausing to allow the material of the intraocular lens to relax, advancing the plunger to the critical point a second time, and continuing to advance the plunger beyond the critical point to implant the intraocular lens.Type: GrantFiled: August 10, 2016Date of Patent: August 27, 2019Assignee: Novartis AGInventors: David A. Downer, Tu Cam Tran
-
Publication number: 20180200046Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and a ramp may be formed on the interior surface so as to cause a leading haptic of an intraocular lens (IOL) being advanced through the passage to lift above a surface of an optic of the IOL to ensure proper folding of the IOL.Type: ApplicationFiled: December 12, 2017Publication date: July 19, 2018Inventors: Kyle Brown, Tu Cam Tran, Yinghui Wu, Stephen J Van Noy
-
Publication number: 20180200047Abstract: Apparatuses, systems, and methods for implanting an intraocular lens into an eye are described. For example, an intraocular lens injector may include a passage formed in a distal end portion of the intraocular lens injector. The passage may define an interior surface, and one or more rails may be formed on the interior surface so as to displace an optic of an intraocular lens (IOL) being advanced through the passage towards a portion of the interior surface disposed opposite the one or more rails.Type: ApplicationFiled: December 12, 2017Publication date: July 19, 2018Inventors: Yinghui Wu, Kyle Brown, Tu Cam Tran, Douglas Brent Wensrich, Todd Taber, Jyoti Bhatia
-
Publication number: 20160346078Abstract: An IOL injection device comprises a tubular housing with a plunger longitudinally disposed within the tubular housing. The device is configured so that when the plunger is translated towards the front of the device, its tip engages an intraocular lens insertion cartridge mounted at or near the front end of the housing. The IOL injection device further comprises a control circuit. The control circuit is configured to perform the steps of advancing the plunger to a critical point at which an axial compressive force on the lens suddenly increases, retracting the plunger from the critical point to a sufficient distance for material of the intraocular lens to relax, pausing to allow the material of the intraocular lens to relax, advancing the plunger to the critical point a second time, and continuing to advance the plunger beyond the critical point to implant the intraocular lens.Type: ApplicationFiled: August 10, 2016Publication date: December 1, 2016Inventors: David A. Downer, Tu Cam Tran
-
Publication number: 20150359624Abstract: An intraocular lens delivery system includes an injector body having a bore surrounded by an inner wall. The system further includes a plunger configured to fit within the bore. The system also includes a plurality of deflectable members connected to the plunger and configured to contact the inner wall and to be deflected when the plunger is inserted within the bore. The deflectable members center the shaft and, when inserted within the injector body, contribute to producing a predetermined force resisting advancement of the plunger when deflected in the bore.Type: ApplicationFiled: November 16, 2012Publication date: December 17, 2015Applicant: Novartis AGInventors: David A. Downer, Kyle Brown, Dengzhu Yan, Marshall Keith Proulx, Sushant Muchhala, Tu Cam Tran
-
Patent number: 9089419Abstract: Embodiments of the present invention provide an intraocular lens with an optic zone having a first surface topology and a haptic zone having a second surface topology. The surface roughness of the haptic zone may be greater than the surface roughness of the optic zone. The surface topology of the optic zone may have a first surface geometry and the surface topology of the haptic zone may have a second surface geometry. The first and second surface geometries may retain lubrication fluid in a space formed therein. The haptics formed by the manufacturing process may have a reduced ability to adhere to the optic zone, such as when the lens is folded or advanced through a cannula.Type: GrantFiled: October 5, 2009Date of Patent: July 28, 2015Assignee: Novartis AGInventors: David A. Downer, Drew Morgan, Tu Cam Tran, Bobby C. Van Winkle
-
Publication number: 20140142586Abstract: An intraocular lens delivery system includes an injector body having a bore surrounded by an inner wall. The system further includes a plunger configured to fit within the bore. The system also includes a plurality of deflectable members connected to the plunger and configured to contact the inner wall and to be deflected when the plunger is inserted within the bore. The deflectable members center the shaft and, when inserted within the injector body, contribute to producing a predetermined force resisting advancement of the plunger when deflected in the bore.Type: ApplicationFiled: November 16, 2012Publication date: May 22, 2014Applicant: Novartis AGInventors: David A. Downer, Kyle Brown, Dengzhu Yan, Marshall Keith Proulx, Sushant Muchhala, Tu Cam Tran
-
Patent number: 8377076Abstract: An intraocular lens delivery system includes an injector body having a bore surrounded by an inner wall. The system further includes a plunger configured to fit within the bore. The system also includes a plurality of deflectable members connected to the plunger and configured to contact the inner wall and to be deflected when the plunger is inserted within the bore. The deflectable members center the shaft and, when inserted within the injector body, contribute to producing a predetermined force resisting advancement of the plunger when deflected in the bore.Type: GrantFiled: June 3, 2010Date of Patent: February 19, 2013Assignee: Novartis AGInventors: David Anthony Downer, Kyle Brown, Dengzhu Yan, Marshall Keith Proulx, Sushant Muchhala, Tu Cam Tran
-
Publication number: 20100312254Abstract: An intraocular lens delivery system includes an injector body having a bore surrounded by an inner wall. The system further includes a plunger configured to fit within the bore. The system also includes a plurality of deflectable members connected to the plunger and configured to contact the inner wall and to be deflected when the plunger is inserted within the bore. The deflectable members center the shaft and, when inserted within the injector body, contribute to producing a predetermined force resisting advancement of the plunger when deflected in the bore.Type: ApplicationFiled: June 3, 2010Publication date: December 9, 2010Inventors: David Anthony Downer, Kyle Brown, Dengzhu Yan, Marshall Keith Proulx, Sushant Muchhala, Tu Cam Tran
-
Publication number: 20100094414Abstract: Embodiments of the present invention provide an intraocular lens with an optic zone having a first surface topology and a haptic zone having a second surface topology. The surface roughness of the haptic zone may be greater than the surface roughness of the optic zone. The surface topology of the optic zone may have a first surface geometry and the surface topology of the haptic zone may have a second surface geometry. The first and second surface geometries may retain lubrication fluid in a space formed therein. The haptics formed by the manufacturing process may have a reduced ability to adhere to the optic zone, such as when the lens is folded or advanced through a cannula.Type: ApplicationFiled: October 5, 2009Publication date: April 15, 2010Inventors: David A. Downer, Drew Morgan, Tu Cam Tran, Bobby C. Van Winkle
-
Publication number: 20080255577Abstract: A cartridge for an IOL delivery system that has a straight thinned walled distal nozzle. The transition region between the tapered folding portion of the cartridge and the nozzle contain reinforcing gussets to help prevent splitting of the cartridge. Flow leaders in the nozzle direct the flow of material during molding at the 12:00 o'clock position, positioning the weld line of the flow front at the 6:00 o'clock position.Type: ApplicationFiled: April 11, 2007Publication date: October 16, 2008Inventors: David A. Downer, Kyle Brown, Sushant Muchhala, Tu Cam Tran, Dengzhu Yan