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US 5,699,810 AGranted
Procedure for removal of soft eye tissue
OwnerIoannis G. Pallikarisinventor
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OwnerIoannis G. Pallikarisinventor
Estimating the term…
A surgical procedure and device are used to precisely remove soft tissue from the eye. For example, a corneal epithelial layer is removed from the eye as part of a photorefractive keratectomy (PRK) or phototherapeutic keratectomy (PTK) procedure. In the procedure, the epithelial layer is abraded, under irrigation, using a relatively soft and pliable rotating abrading surface. The device used to perform the procedure is a hand-held rotary brush having semi-rigid plastic bristles with flat polished ends. In another embodiment, a rotating abrading surface is provided by open cells of a sponge material, instead of a brush. In this manner, the epithelium can be abraded away within a few seconds in a precisely defined area without causing mechanical damage to the underlying stromal layer. In a further application, the tool is used to remove a so-called pseudo-membrane formed during laser ablation of the corneal stroma during PRK or PTK.
A procedure for removing a corneal epithelial layer from an eye, comprising:
A procedure for removing soft tissue from an eye, comprising:
A procedure for removing soft tissue from an eye, comprising:
A procedure for removing soft tissue from any eye, comprising:
A procedure for removing soft tissue from an eye, comprising:
Dependencies are inferred from the claim text.