Fine membrane forceps with integral scraping feature
First Claim
Patent Images
1. Membrane forceps for performing an ILM (internal limiting membrane) or ERM (epiretinal membrane) peel procedure;
- comprising;
a handle;
a tube extending from the handle; and
forceps jaws extending from the tube, the forceps jaws being configured to grasp an ILM or ERM between two opposing grip faces configured to abut each other when the forceps jaws are closed, the forceps jaws also comprising an outer surface, external to the grip faces, having a series of ridges, the series of ridges being structurally configured to aid in scraping the ILM or ERM and gaining an edge of the ILM or ERM;
wherein the series of ridges are disposed substantially parallel to leading edges at distal-most ends of the forceps jaws;
wherein the series of ridges comprise surface features having a peak to valley height within a range of about 3-40 microns; and
wherein the outer surface is angled relative to a longitudinal axis of the tube at an angle having a value between about 25 degrees and 65 degrees to lie substantially parallel to tissue within an eye that is to be scraped when the membrane forceps is in the eye.
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Abstract
Membrane forceps for performing an ILM or ERM peel procedure include a handle, a tube extending from the handle, and forceps jaws extending from the tube. The forceps jaws may be configured to grasp an ILM or ERM, and may include an outer surface having a roughened surface. The roughened surface may be structurally configured to aid in gaining an edge of the ILM or ERM.
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Citations
13 Claims
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1. Membrane forceps for performing an ILM (internal limiting membrane) or ERM (epiretinal membrane) peel procedure;
- comprising;
a handle; a tube extending from the handle; and forceps jaws extending from the tube, the forceps jaws being configured to grasp an ILM or ERM between two opposing grip faces configured to abut each other when the forceps jaws are closed, the forceps jaws also comprising an outer surface, external to the grip faces, having a series of ridges, the series of ridges being structurally configured to aid in scraping the ILM or ERM and gaining an edge of the ILM or ERM; wherein the series of ridges are disposed substantially parallel to leading edges at distal-most ends of the forceps jaws; wherein the series of ridges comprise surface features having a peak to valley height within a range of about 3-40 microns; and wherein the outer surface is angled relative to a longitudinal axis of the tube at an angle having a value between about 25 degrees and 65 degrees to lie substantially parallel to tissue within an eye that is to be scraped when the membrane forceps is in the eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- comprising;
Specification