Patents by Inventor Michael J. Simpson

Michael J. Simpson 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: 9271835
    Abstract: Devices and associated methods are disclosed for treating bone, and particularly bone tissue at the joints. Disclosed are implantable devices that can be used either alone or in combination with this augmentation or hardening material for the repair of bone defects and which are particularly suited for use at the joints, and even more particularly suited for use at the subchondral bone level.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 1, 2016
    Assignee: ZIMMER KNEE CREATIONS, INC.
    Inventors: Charanpreet S. Bagga, Shaun B. Hanson, Christopher D. Mandeen, Michael J. Simpson, Steven B. Cohen, Charles F. Leinberry, Peter F. Sharkey
  • Publication number: 20140180406
    Abstract: A dynamic accommodative intraocular lens is provided in which a central lens portion of the intraocular lens undergoes dynamic change in curvature to adjust focus from distant objects to those nearby in response to natural accommodative actions of the patient's eye. The intraocular lens utilizes fluid movement from flexible fluid reservoirs defined along or adjacent haptic elements of the intraocular lens, which are engaged and compressed by the accommodating movements of the ciliary body of the patient's eye to cause expansion and flattening of the intraocular lens to adjust the optic power of the lens.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Applicant: NOVARTIS AG
    Inventor: MICHAEL J. SIMPSON
  • Publication number: 20140121768
    Abstract: An accommodative lens assembly includes a lens body defining an optic lens, a haptic system, and a wing. The lens body is formed and implanted into an eye in a disaccommodative configuration. The haptic system includes one or more haptics that support the optic lens and transmits forces from an anatomical structure such as a ciliary body of the eye, causing the optic lens to deform into an accommodative configuration. In order to stabilize the optic lens so that the optic lens is not displaced from its implantation site, the wing anchors the optic lens within an anterior capsulorhexis of the capsular bag such that the transmitted forces that deform the optic lens during accommodation do not also displace the optic lens from its implanted position. When implanted, the optic lens is anterior to the capsular bag.
    Type: Application
    Filed: September 23, 2013
    Publication date: May 1, 2014
    Applicant: NOVARTIS AG
    Inventor: MICHAEL J. SIMPSON
  • Publication number: 20140121767
    Abstract: A method and system provide an ophthalmic device and treat a patient using the ophthalmic device. The ophthalmic device includes an ophthalmic lens having an anterior surface, a posterior surface and an optic axis. At least one of the anterior surface and the posterior surface is an aspheric surface. The aspheric surface has a toricity configured to spread retroreflected light incident in a plurality of directions canted from the optic axis. In one aspect, the method includes selecting the ophthalmic device for implantation in an eye of the patient and implanting the ophthalmic device in the patient's eye.
    Type: Application
    Filed: September 24, 2013
    Publication date: May 1, 2014
    Applicant: NOVARTIS AG
    Inventor: MICHAEL J. SIMPSON
  • Publication number: 20140107781
    Abstract: Devices and associated methods are disclosed for treating bone, and particularly bone tissue at the joints. Disclosed are implantable devices that can be used either alone or in combination with this augmentation or hardening material for the repair of bone defects and which are particularly suited for use at the joints, and even more particularly suited for use at the subchondral bone level.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: ZIMMER KNEE CREATIONS, INC.
    Inventors: Charanpreet S. BAGGA, Shaun B. HANSON, Christopher D. MANDEEN, Michael J. SIMPSON, Steven B. COHEN, Charles F. LEINBERRY, Peter F. SHARKEY
  • Patent number: 8632178
    Abstract: In certain embodiments, determining physical lengths of an eye includes determining an optical length of each segment of a plurality of segments of an axis of the eye, where each segment corresponds to a portion of the eye. A refractive index is determined for each segment. A physical length of each segment is determined according to the optical length and the refractive index of the segment.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: January 21, 2014
    Assignee: Novartis AG
    Inventor: Michael J. Simpson
  • Patent number: 8608802
    Abstract: Devices and associated methods are disclosed for treating bone, and particularly bone tissue at the joints. Disclosed are implantable devices that can be used either alone or in combination with this augmentation or hardening material for the repair of bone defects and which are particularly suited for use at the joints, and even more particularly, suited for use at the subchondral bone level.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 17, 2013
    Assignee: Zimmer Knee Creations, Inc.
    Inventors: Charanpreet S. Bagga, Shaun B. Hanson, Christopher D. Mandeen, Michael J. Simpson, Steven B. Cohen, Charles F. Leinberry, Peter F. Sharkey
  • Patent number: 8556421
    Abstract: In certain embodiments, calculating intraocular lens (IOL) power includes determining locations of parts of an eye along an axis of the eye. The locations include the location of a cornea, the anterior and posterior locations of a crystalline lens, and the location of a retina. An IOL location of an IOL is calculated according to the anterior and posterior locations of the crystalline lens. Corneal data is also determined. The IOL power is calculated using the corneal data, the IOL location, and the retinal location. In certain embodiments, refractive indices are determined for segments of the axis, and at least one location is adjusted according to the refractive indices.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: October 15, 2013
    Assignee: Novartis AG
    Inventor: Michael J. Simpson
  • Publication number: 20130100403
    Abstract: In certain embodiments, determining physical lengths of an eye includes determining an optical length of each segment of a plurality of segments of an axis of the eye, where each segment corresponds to a portion of the eye. A refractive index is determined for each segment. A physical length of each segment is determined according to the optical length and the refractive index of the segment.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 25, 2013
    Inventor: Michael J. Simpson
  • Publication number: 20130100408
    Abstract: In certain embodiments, calculating intraocular lens (IOL) power includes determining locations of parts of an eye along an axis of the eye. The locations include the location of a cornea, the anterior and posterior locations of a crystalline lens, and the location of a retina. An IOL location of an IOL is calculated according to the anterior and posterior locations of the crystalline lens. Corneal data is also determined. The IOL power is calculated using the corneal data, the IOL location, and the retinal location. In certain embodiments, refractive indices are determined for segments of the axis, and at least one location is adjusted according to the refractive indices.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 25, 2013
    Inventor: Michael J. Simpson
  • Publication number: 20110125265
    Abstract: Devices and associated methods are disclosed for treating bone, and particularly bone tissue at the joints. Disclosed are implantable devices that can be used either alone or in combination with this augmentation or hardening material for the repair of bone defects and which are particularly suited for use at the joints, and even more particularly, suited for use at the subchondral bone level.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 26, 2011
    Applicant: KNEE CREATIONS, LLC
    Inventors: Charanpreet S. Bagga, Shaun B. Hanson, Christopher D. Mandeen, Michael J. Simpson, Steven B. Cohen, Charles F. Leinberry, Peter F. Sharkey
  • Patent number: 7944553
    Abstract: A method and system for measuring an optical property of a multi-focal lens are disclosed. One embodiment of the method comprises: filtering out light transmitted by all but one of a plurality of diffraction orders of the lens to provide an unfiltered light from a single diffraction order; receiving the unfiltered light at a wavefront detector; and analyzing the unfiltered light at the wavefront detector to measure the optical property. The multi-focal lens can be a multi-focal diffractive intra-ocular lens. The measured optical property can be a discontinuity in the lens surface. Filtering can comprise blocking all but the unfiltered light using an aperture operable to let through the unfiltered light from the single diffraction order, and/or blocking all but the unfiltered light using an opaque obstruction operable to let through only a selected amount of light corresponding to the light transmitted by the single diffraction order.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: May 17, 2011
    Assignee: Alcon, Inc.
    Inventors: Michael J. Simpson, Jihong Xie
  • Publication number: 20110022170
    Abstract: In one aspect, the present invention provides a method of designing a diffractive ophthalmic lens (e.g., an intraocular lens (IOL)) that includes providing an optic having an anterior refractive surface and a posterior refractive surface, wherein the optic provides a far-focus power (e.g., in a range of about 18 to about 26 Diopters (D)). A truncated diffractive structure can be disposed on at least one of the surfaces for generating a near-focus add power (e.g., in a range of about 3 D to about 4 D). And the diffractive structure can be adjusted so as to obtain a desired distribution of optical energy between the near and far foci for a range of pupil sizes.
    Type: Application
    Filed: July 30, 2010
    Publication date: January 27, 2011
    Inventors: Michael J. Simpson, Mutlu Karakelle, Stephen J. Van Noy, Xiaoxiao Zhang, Xin Hong, Jihong Xie
  • Patent number: 7777872
    Abstract: A method for measuring the optical properties of multifocal ophthalmic lenses. Collimated light is passed through an ophthalmic lens and onto an array of lenslets. Light exiting the array of lenslets is detected by a sensor. Blurred spots and/or double spots may represent diffractive zones of the wavefront. A centroid of the spot or a brighter of two spots may be used to determine the lateral position of the spot. Theoretical calculations, laboratory measurements, clinical measurements and experimental image spots may be generated, compared and cross-checked to determine a monofocal equivalent lens. A Modulation Transfer Function (MTF) may be used to evaluate and compare a diffractive lens and a monofocal equivalent lens.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: August 17, 2010
    Assignee: Alcon Research, Ltd.
    Inventor: Michael J. Simpson
  • Publication number: 20100131060
    Abstract: The present invention generally provides multifocal ophthalmic lenses, e.g., multifocal intraocular lenses, that employ a central refractive region for providing a refractive focusing power and a diffractive region for providing diffractive focusing powers. The refractive focusing power provided by the lens's central region corresponds to a far-focusing power that is substantially equal to one of the diffractive focusing powers while the other diffractive power corresponds to a near-focusing power. The far-focusing power can be enhanced by changes to the phase of the central refractive region and/or changes to the curvature of the central refractive region.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Inventors: Michael J. Simpson, Krishnakumar Venkateswaran
  • Publication number: 20100125331
    Abstract: A method of designing an intraocular lens (IOL) of a selected power includes determining a power-specific axial separation parameter for the selected power. The method also includes selecting at least one aberration correction for the IOL. The method further includes designing the IOL based on the power-specific axial separation parameter to produce the selected aberration correction.
    Type: Application
    Filed: November 17, 2009
    Publication date: May 20, 2010
    Inventor: Michael J. Simpson
  • Publication number: 20100087921
    Abstract: Aspheric diffractive lenses are disclosed for ophthalmic applications. For example, multifocal intraocular lens (IOLs) are disclosed that include an optic having an anterior surface and a posterior surface, at least one of which surfaces includes an aspherical base profile on a portion of which a plurality of diffractive zones are disposed so as to generate a far focus and a near focus. The aspherical base profile enhances image contrast at the far focus of the lens relative to that obtained by a substantially identical IOL in which the respective base profile is spherical.
    Type: Application
    Filed: November 4, 2009
    Publication date: April 8, 2010
    Inventor: Michael J. Simpson
  • Patent number: 7659970
    Abstract: A method and system for measuring an optical property of a multi-focal lens are disclosed. One embodiment of the method comprises: filtering out light transmitted by all but one of a plurality of diffraction orders of the lens to provide an unfiltered light from a single diffraction order; receiving the unfiltered light at a wavefront detector; and analyzing the unfiltered light at the wavefront detector to measure the optical property. The multi-focal lens can be a multi-focal diffractive intra-ocular lens. The measured optical property can be a discontinuity in the lens surface. Filtering can comprise blocking all but the unfiltered light using an aperture operable to let through the unfiltered light from the single diffraction order, and/or blocking all but the unfiltered light using an opaque obstruction operable to let through only a selected amount of light corresponding to the light transmitted by the single diffraction order.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: February 9, 2010
    Assignee: Alcon, Inc.
    Inventors: Michael J. Simpson, Jihong Xie
  • Patent number: RE45751
    Abstract: A computerized docketing system for legal matters, comprising a database operatively arranged to store information related to the legal matters, including actions to be taken with respect to the legal matters, and due dates associated with the actions to be taken, an arithmetic logic unit operatively arranged to scan the database, compare each of the due dates with a reference date, and classify the due dates according to proximity of each of the due dates to the reference date, and, means for displaying different classifications of the due dates in different colors for the purpose of alerting a user of the system of matters requiring attention. A computerized method and apparatus for comparing two dates and alerting user of impending due date by changing color of one of the two dates.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: October 13, 2015
    Assignee: Legalstar, Inc.
    Inventors: Robert P. Simpson, Michael J. Simpson, William S. Perrello
  • Patent number: RE45969
    Abstract: In one aspect, the present invention provides an ophthalmic lens (e.g., an IOL) that includes an optic having an anterior surface and a posterior surface disposed about an optical axis. At least one of the surfaces (e.g., the anterior surface) has a profile characterized by superposition of a base profile and an auxiliary profile. The auxiliary profile can include an inner region, an outer region and a transition region between the inner and the outer regions, where an optical path difference across the transition region (i.e., the optical path difference between the inner and the outer radial boundaries of the transition region) corresponds to a non-integer fraction (e.g., ½) of a design wavelength (e.g., a wavelength or about 550 nm).
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: April 12, 2016
    Assignee: NOVARTIS AG
    Inventors: Xin Hong, Myoung-Taek Choi, Mutlu Karakelle, Xiaoxiao Zhang, Michael J. Simpson, Yan Zhang