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. 14, 2023
Filed:
Jul. 15, 2022
Alex Urich, Coto de Caza, CA (US);
Alex Urich, Coto de Caza, CA (US);
Other;
Abstract
Disclosed is a surgical instrument for cataract eye surgery. The instrument generally includes a handpiece that delivers sub-ultrasonic and ultrasonic vibrations in either a steady-state emulsification mode or with on-off pulses that dynamically drives a hollow needle in either a pulsed fragmentation mode or a pulsed emulsification mode. The pulsed fragmentation mode is efficient at cutting lens tissue and the pulsed emulsification mode is efficient and emulsifying the cut lands tissue. The pulsed modes manage heat buildup from becoming excessive in the eye during the cataract surgery. While in the pulsed fragmentation mode, the hollow needle is never given the chance to vibrate at an established resonant frequency of the handpiece due to the short on-off period. In contrast, the pulsed emulsification mode has a long enough on-off period to permit an ultrasonic resonant frequency in the handpiece to develop thereby driving the hollow needle at a higher energy than the pulsed fragmentation mode.