The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1994
Filed:
Oct. 12, 1993
Anita S Nevyas-Wallace, Narberth, PA (US);
Other;
Abstract
A surgical knife and a method for enhancing incisions in radial keratotomy enhancement surgery on an eye having a cornea and a central optical zone, where a generally radial incision previously made in the cornea has a wall adjacent the optical zone and is to be extended centripetally toward the optical zone. The knife comprises a knife blade with an end, and the blade has a sharpened cutting edge facing in a leading direction, a recess extending inwardly from the cutting edge and from the end of the blade, and a stopping edge and a measuring edge at the recess. The stopping edge faces in the leading direction. The measuring edge has a predetermined length and extends from the cutting edge to the stopping edge. The surgical knife is inserted into a previously made incision so that the cutting edge and the stopping edge face centripetally and the end of the blade contacts a bottom portion of the incision. The knife is advanced toward the optical zone, and the incision is extended a distance no greater than the predetermined length of the measuring edge. The surgical knife is then removed from the extended incision and the uneven bottom portion of the incision is evened out.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile