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.:

US 7513621 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 07, 2009

Filed:

Oct. 25, 2004
Applicants:

Herbert J. Nevyas, Narberth, PA (US);

Anita Nevyas-wallace, Narberth, PA (US);

Inventors:

Herbert J. Nevyas, Narberth, PA (US);

Anita Nevyas-Wallace, Narberth, PA (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 3/10 (2006.01); A61B 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is an operative keratometer consisting of a built-in bright LED ring light, which uniquely provides immediate direct preoperative confirmation to the ophthalmologist of the proper meridian for astigmatic cuts and the most advantageous location of cataract incisions to minimize postoperative astigmatism. Also provided are methods for using the operative keratometer device to facilitate evaluation of the amount and direction of astigmatism in a patient. Further provided is a movable fixation/centration device and methods for its use to focus the operative keratometer, particularly for treating astigmatism, permitting the ophthalmologist to qualitatively assess both the amount and direction of the astigmatism; to more accurately conduct surgery near the pupil by providing a patient fixation point that permits the ophthalmologist to more precisely control movement of the patient's eye during an ophthalmic procedure; and to provide monocular centration of the patient's eye.


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Nevyas, Herbert. (2009). Ophthalmic operative keratometer with movable fixation/centration device (U.S. Patent No. 7513621). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7513621

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