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:
Feb. 07, 1995
Filed:
May. 20, 1993
Donald E Lehmer, Berkeley, CA (US);
Allergan, Inc., Irvine, CA (US);
Abstract
A method of generating wave forms for a phaco surgical handpiece, with each wave form having a different frequency includes storing a plurality of sets of digital information, each set corresponding to a different specific frequency and selecting a set of digital information in response to an input corresponding to a resonance frequency of said phaco surgical handpiece. Thereafter selected digital information is read in a manner producing a digital output having a corresponding frequency equal to or lower than the frequency corresponding to the selected set of digital information. Subsequently, the digital output is converted into an analog wave form for driving said phaco surgical handpiece.