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US 10,441,462 B1Granted
Ophthalmic surgical instruments and methods of use thereof
OwnerRichard Mackoolinventor
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Abstract
An ophthalmic surgical instrument includes a housing and a snare operably coupled to the housing. The snare is configured to transition between an insertion configuration and a deployed configuration, in which the snare is sized to encircle lenticular tissue. The ophthalmic surgical instrument is designed to prevent elevation and/or tilting of the lenticular tissue as the snare transitions toward the insertion configuration to divide the lenticular tissue.
Claims17
An ophthalmic surgical instrument for severing a lens of an eye, comprising:
- an elongated shaft including:
- a proximal end portion;
- and
- a distal end portion defining an opening, the distal end portion being offset from the proximal end portion;
- and
- a snare extending along the elongated shaft and including a cutting segment disposed adjacent the opening and configured to move between a contracted configuration and a dilated configuration, in which the cutting segment assumes a diameter approximating a diameter and shape of a lens, wherein the cutting segment is configured to sever the lens upon moving toward the contracted configuration, wherein the elongated shaft further includes an intermediate portion extending between the proximal and distal end portions, the intermediate portion being angled relative to the proximal and distal end portions, wherein the proximal end portion defines a first longitudinal axis, the distal end portion defines a second longitudinal axis that is parallel with the first longitudinal axis.
3 more elements
An ophthalmic surgical instrument for severing a lens of an eye, comprising:
- a handle;
- an elongated shaft extending distally from the handle and including a distal end portion defining an opening, the distal end portion being angled relative to a proximal portion of the elongated shaft that is disposed proximally of the distal end portion;
- and
- a snare operably coupled to the housing and including a looped segment configured to move between a contracted configuration and a dilated configuration, in which the looped segment assumes a diameter approximating a diameter and shape of a lens, wherein the looped segment is configured to sever the lens upon moving toward the contracted configuration, wherein the distal end portion has a bottom portion configured to be oriented toward a human eye, and an upper portion, the bottom portion defining the opening therein, the upper portion having a concave inner surface overlapping the looped segment and the opening.
1 more element
Dependencies are inferred from the claim text.