US 11,596,547 B2 · Hydrodissection and posterior capsule opacification prevention during capsulotomy procedure

Abstract

Embodiments of the invention provide hydrodissection and/or PCO prevention or reduction in a patient undergoing eye surgery. In one embodiment, the invention is a surgical device for cutting and excising a portion of tissue, for example in performing a lens capsulotomy. A capsulotomy tip is inserted into an eye through an incision in the surface of the eye. The capsulotomy tip includes a suction cup to provide suction to the lens capsule. Then suction is applied via the suction cup to secure the capsulotomy tip to the eye. In some embodiments, after the capsulotomy tip is secured to the lens capsule, a cutting element of the capsulotomy tip is used to cut a tissue of the eye. Fluid is pushed through the capsulotomy tip and the capsulotomy tip is removed from the eye. Moreover, disclosed is an intraocular lens (IOL) to be used in conjunction with the surgical device.

Claims22

Dependent claims

A surgical device comprising:

a suction cup including an inner diameter wall, an outer diameter wall, and a roof, the inner diameter wall, the outer diameter wall, and the roof forming a channel;
a stem coupled to the suction cup, the stem including a lumen that is in fluid communication with the suction cup, the lumen configured to be coupled to the channel;
a lip coupled to the outer diameter wall, the lip configured to be pulled against a capsular membrane of an eye to form a low leakage seal to allow a pressure inside the channel to decrease;
an electrical cutting element for cutting tissue, wherein the electrical cutting element is mounted on an underside of the suction cup, the electrical cutting element configured to cause a shrinkage of collagen fibers resulting in an upward fold of the cut tissue;
and
a dispenser coupled to the lumen of the stem, the dispenser configured to dispense a predetermined amount of fluid through the lumen to the suction cup.

3 more elements

Dependencies are inferred from the claim text.

Hydrodissection and posterior capsule opacification prevention during capsulotomy procedure

Life of this patent

Hydrodissection and posterior capsule opacification prevention during capsulotomy procedure

Life of this patent

Abstract

Claims22