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:
Jan. 19, 1999
Filed:
Jul. 30, 1996
Yoseph Yaacobi, Fort Worth, TX (US);
Other;
Abstract
A remotely operable intraocular surgical instrument specially adapted to perform anterior capsulectomy/capsulorhexis for extracapsular cataract extractions and emulsifications is disclosed. The intraocular instrument has a main body portion including at least two internally defined passageways and a rounded internal chamber including a rotatable wheel or a gear. An arm of variable length including a knife is associated with the rotatable wheel or gear such that movement of the wheel/gear rotates the knife through 360 degrees. In one embodiment, the wheel is driven through the use of a fluid forced through the internal passageways and around the wheel. In another embodiment a shaft having specialized teeth communicates pressure applied to a handle to the gear, thus turning the associated knife. Both embodiments include a releasable stop to prevent the knife from rotating and cutting past 360 degrees. Both embodiments also include structure for providing a viscoelastic solution to the operative field and an optional passageway to remove undesired material from the operative field. The lack of movement of the main body portion of the instrument during the procedure, simplicity of design, relative low expense of manufacture and disposable nature of the instrument provide obvious advantages and benefits.