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:
Apr. 06, 1993
Filed:
Dec. 12, 1991
Applicant:
Inventor:
Peter Wypych, Irvine, CA (US);
Assignee:
Alcon Surgical, Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
604 22 ; 606169 ; 606107 ;
Abstract
An ultrasonic surgical handpiece having a generally hollow body with a reduced diameter portion at a free end and an interior surface, an ultrasonic horn coaxially mounted inside the body, terminating at the free end and defining a fluid flow passage at the reduced diameter portion and a spiral thread formed in the interior surface at the reduced diameter portion for reducing shearing of a fluid flowing through the fluid flow passage created by an ultrasonic vibration of the horn.