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:
Nov. 18, 2003
Filed:
Feb. 11, 2003
Applicant:
Inventors:
Glenn Sussman, Lake Forest, CA (US);
Donald M. Cohen, Irvine, CA (US);
Assignee:
Alcon Manufacturing, Ltd., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 1/00 ; A61F 9/00 ;
U.S. Cl.
CPC ...
A61M 1/00 ; A61F 9/00 ;
Abstract
A surgical handpiece having at least two lumens or tubes mounted to a body. At least one tube is used for aspiration and at least one other tube is used to inject heated surgical fluid for liquefying a cataractous lens. A portion of the second tube is enlarged to form a pumping chamber. The pumping chamber works by boiling a small volume of the surgical fluid. As the fluid boils, it expands rapidly, thereby propelling the liquid downstream of the pumping chamber out of the second tube. The pumping chamber may use a pair of electrodes.