Patents by Inventor Qiping Shen

Qiping Shen 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: 6929638
    Abstract: An orientation system and method for corrective eye surgery includes a camera for performing a first image mapping of a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping of the eye is performed with the patient in a different position. The second image map is processed to locate the predetermined eye feature. Correlation of the mappings is used to calculate an orientational change of the eye between the two positions. This procedure may also be performed at different times during surgery to permit “real-time” data on orientational changes undergone by the eye to be collected. In both cases the data are used to calculate an adjustment to be applied to a corrective prescription for application by the surgical procedure.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: August 16, 2005
    Assignee: Alcon RefractiveHorizons, Inc.
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen
  • Patent number: 6866661
    Abstract: An orientation system for corrective eye surgery includes a camera for performing a first image mapping of a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping of the eye is performed with the patient in a different position. The second image map is processed to locate the predetermined eye feature. Correlation of the mappings is used to calculate an orientational change of the eye between the two positions. The data are used to calculate an adjustment to be applied to a corrective prescription for application by the surgical procedure.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: March 15, 2005
    Assignee: Alcon RefractiveHorizons, Inc.
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen
  • Publication number: 20040143245
    Abstract: An orientation system for corrective eye surgery includes a camera for performing a first image mapping of a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping of the eye is performed with the patient in a different position. The second image map is processed to locate the predetermined eye feature. Correlation of the mappings is used to calculate an orientational change of the eye between the two positions. The data are used to calculate an adjustment to be applied to a corrective prescription for application by the surgical procedure.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 22, 2004
    Applicant: Alcon RefractiveHorizons, Inc.
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen
  • Publication number: 20040143244
    Abstract: An orientation system and method for corrective eye surgery includes a camera for performing a first image mapping of a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping of the eye is performed with the patient in a different position. The second image map is processed to locate the predetermined eye feature. Correlation of the mappings is used to calculate an orientational change of the eye between the two positions. This procedure may also be performed at different times during surgery to permit “real-time” data on orientational changes undergone by the eye to be collected. In both cases the data are used to calculate an adjustment to be applied to a corrective prescription for application by the surgical procedure.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 22, 2004
    Applicant: Alcon RefractiveHorizons, Inc.
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen
  • Patent number: 6702806
    Abstract: An orientation system for corrective eye surgery includes a camera for performing a first image mapping a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping is performed with the patient in a different position. The second image map is processed to locate the feature. In a second embodiment a pen is used to make two alignment marks on the eye. The eye is imaged with the patient in another position, and the image displayed. Software superimposes a graphical reticle onto the eye image, which is movable to align with the two alignment marks. In both cases software also calculates an orientational change to be applied to a corrective prescription for a surgical procedure to be performed on the eye with the patient in the second position.
    Type: Grant
    Filed: April 19, 2001
    Date of Patent: March 9, 2004
    Assignee: Alcon, Inc.
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen
  • Publication number: 20020013576
    Abstract: An orientation system for corrective eye surgery includes a camera for performing a first image mapping a patient's eye using a predetermined eye feature and software for processing the first image map to determine an edge location of the feature. A second image mapping is performed with the patient in a different position. The second image map is processed to locate the feature. In a second embodiment a pen is used to make two alignment marks on the eye. The eye is imaged with the patient in another position, and the image displayed. Software superimposes a graphical reticle onto the eye image, which is movable to align with the two alignment marks. In both cases software also calculates an orientational change to be applied to a corrective prescription for a surgical procedure to be performed on the eye with the patient in the second position.
    Type: Application
    Filed: April 19, 2001
    Publication date: January 31, 2002
    Inventors: Gary Paul Gray, John Alfred Campin, Qiping Shen