Intraocular device for retaining a lens capsule
A rod-shaped device holds the equatorial region of the lens capsule during cataract/intraocular lens implantation surgery of patients with a weak or ruptured Zinn zonule. The device has a handle with a length of 6 mm or more and a thickness ranging from 0.01 mm to 1.0 mm, a tip bent into an acute angle, with the length up to this angled tip being 1.5 mm or more from the trough of the bend, and the bent tip having a linear branched or flat pad, with the width between the branches being 1 mm or more or the flat pad having a surface area of 1 mm 2 or more.
1. An ophthalmic device for retaining a lens capsule, comprising:
a single rod forming a linear handle portion, an end of said rod being bent at an acute angle relative to the linear portion of the handle so that the end is not parallel to the linear portion of the handle, and an extension formed at a free portion of the end,
wherein the extension is not parallel to the linear portion of the handle,
wherein the extension includes two linear tips connected to and diverging from the end with respect to each other in opposite directions, and
wherein each tip has a blunt free terminus.
2. The device according to claim 1 , wherein one of the linear tips extends upward to its terminus and the other extends downward to its terminus, each relative to an axis of the linear portion of the handle.
3. The device according to claim 1 , wherein one of the linear tips extends leftward to its terminus and rightward to its terminus, each relative to an axis of the linear portion of the handle.
4. The device according to claim 1 , wherein the rod includes a second opposite end which is bent relative to the linear portion of the handle and includes thereon a positioning stopper.
5. The device according to claim 1 , wherein the device is made of a synthetic resin selected from at least one of polypropylene, nylon, silicone, polyvinyl chloride, polyvinyl fluoride, polymethyl methacrylate, polyimide, and a shape-memory resin.
6. The device according to claim 1 , wherein the device is made of a metal selected from at least one of stainless steel, aluminum, titanium, and a shape-memory metal.
7. The device according to claim 1 , wherein the extension has a width in the range of about 1 mm to 15 mm.
8. The device according to claim 1 , wherein the extension is made of a material that is more flexible than the handle.