Devices and methods for the removal of lenticular tissue
DCFirst Claim
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1. A method of cutting a lens within a capsular bag of an eye, comprising:
- introducing a cutting element of a device into an anterior chamber of the eye, wherein at least a portion of said cutting element is positioned in a first, retracted configuration within a lumen of a shaft, and wherein a first leg of the cutting element is configured to advance distally relative to a distal end of the shaft and a second leg of the cutting element is configured to move proximally relative to the distal end of the shaft to expand the cutting element from the first configuration to a second, expanded configuration having an open area;
positioning the cutting element in the first configuration over an anterior surface of the lens with the lens inside the capsular bag;
expanding the cutting element from the first configuration to the second configuration, wherein the cutting element advances between the capsular bag and the anterior surface of the lens as the cutting element moves toward the second configuration;
positioning the cutting element in the second configuration around a portion of the lens between a posterior portion of the capsular bag and the lens to capture the portion of the lens within the open area; and
tensioning the cutting element so that the lens is fully sectioned into at least two fragments.
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Abstract
An exemplary surgical device includes a shaft with a lumen defined therethrough and an element movable from a stored position to a deployed position in which a larger portion of the element extends out of the distal end of the lumen; wherein motion from the stored position to the deployed position causes a first leg of the element to advance distally relative to the distal end of the shaft, and causes a second leg of the element to move proximally relative to the distal end of the shaft.
38 Citations
19 Claims
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1. A method of cutting a lens within a capsular bag of an eye, comprising:
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introducing a cutting element of a device into an anterior chamber of the eye, wherein at least a portion of said cutting element is positioned in a first, retracted configuration within a lumen of a shaft, and wherein a first leg of the cutting element is configured to advance distally relative to a distal end of the shaft and a second leg of the cutting element is configured to move proximally relative to the distal end of the shaft to expand the cutting element from the first configuration to a second, expanded configuration having an open area; positioning the cutting element in the first configuration over an anterior surface of the lens with the lens inside the capsular bag; expanding the cutting element from the first configuration to the second configuration, wherein the cutting element advances between the capsular bag and the anterior surface of the lens as the cutting element moves toward the second configuration; positioning the cutting element in the second configuration around a portion of the lens between a posterior portion of the capsular bag and the lens to capture the portion of the lens within the open area; and tensioning the cutting element so that the lens is fully sectioned into at least two fragments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification