Imaging surgical target tissue by nonlinear scanning
First Claim
Patent Images
1. A method for guiding an eye surgery, comprising the steps of;
- creating first scan data by determining a depth of an eye target region at a first set of points along a first arc by one of an optical coherence tomographic (OCT) imaging system and an interference-based imaging system;
creating second scan data by determining a depth of the eye target region at a second set of points along a second arc by the one of the OCT imaging system and the interference-based imaging system;
determining target region parameters based on the first and second scan data by a computer controller;
wherein the determining target region parameters step comprises;
fitting a sinusoidal function or Fourier harmonics with at least one fitting parameter to the first and second scan data; and
determining the target region parameters using the fitting parameter; and
assisting an adjusting of one or more surgical position parameters according to the determined target region parameters by the computer controller.
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Abstract
Systems and techniques for laser surgery based on imaging a target tissue by nonlinear scanning are presented. In one implementation, a method for guiding an eye surgery can include the steps of: positioning an eye in relation to an imaging system; creating first scan data by determining a depth of an eye target region at a first set of points along a first arc; creating second scan data by determining a depth of the eye target region at a second set of points along a second arc; determining target region parameters based on the first and second scan data; and adjusting one or more surgical position parameters according to the determined target region parameters.
235 Citations
20 Claims
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1. A method for guiding an eye surgery, comprising the steps of;
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creating first scan data by determining a depth of an eye target region at a first set of points along a first arc by one of an optical coherence tomographic (OCT) imaging system and an interference-based imaging system; creating second scan data by determining a depth of the eye target region at a second set of points along a second arc by the one of the OCT imaging system and the interference-based imaging system; determining target region parameters based on the first and second scan data by a computer controller; wherein the determining target region parameters step comprises; fitting a sinusoidal function or Fourier harmonics with at least one fitting parameter to the first and second scan data; and determining the target region parameters using the fitting parameter; and assisting an adjusting of one or more surgical position parameters according to the determined target region parameters by the computer controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification