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:
May. 02, 1995
Filed:
Nov. 12, 1993
Applicant:
Inventor:
Gary W Hall, Phoenix, AZ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606166 ; 8352214 ; 606170 ;
Abstract
A keratotomy incision is formed in a cornea manipulating an RK knife so that its blade extends a preselected depth into a preselected point on the cornea. Sufficient force is applied by a surgeon's fingers to the knife to advance its blade in a preselected direction. Advancement of the blade is halted when resistance of the cornea against the blade exceeds a certain level. A signal representative of the resistance is produced by a strain gauge or transducer in or on the knife. The level of the resistance is indicated on a display or audibly in response to the signal.