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. 16, 2000
Filed:
Mar. 17, 1997
Applicant:
Inventor:
David F Muller, Boston, MA (US);
Assignee:
Summit Technology, Inc., Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61N / ;
U.S. Cl.
CPC ...
606-5 ; 606 10 ; 606 13 ; 606 17 ;
Abstract
Methods and apparatus for corneal reprofiling are disclosed in which a beam-swapping assembly is employed to redirect rays of ablative radiation passing through the assembly. Essentially, the beam-swapping assembly turns the beam profile 'inside out' redirecting the inner most rays to the periphery of the beam while redirecting the outer rays at the same time to the center of the beam. The beam-swapping assembly can be used in conjunction with a beam-shaper, such as an adjustable iris or other beam-shaping device, to create convoluted annular ablation patterns of variable depth and, thereby, perform hyperopia and/or astigmatism correcting procedures.