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:
Jul. 06, 1999
Filed:
Feb. 13, 1997
Applicant:
Inventors:
David A Saperstein, Atlanta, GA (US);
Michael D Bennett, Atlanta, GA (US);
Assignee:
Emory University, Atlanta, GA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61M / ;
U.S. Cl.
CPC ...
604 49 ; 623-6 ; 604280 ;
Abstract
An infusion cannula for use in clearing and preventing condensation on the posterior surface of an artificial lens during the fluid-gas exchange portion of a pars plana vitrectomy is described. The infusion cannula directs the flow of gas entering the eye toward the posterior surface of the lens. The moisture content of the gas supplied to the infusion cannula is minimized in order to increase the effectiveness with which condensation is removed or prevented. Additionally, the temperature of the gas supplied to the infusion cannula is controlled to further increase the effectiveness with which condensation is removed.