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:
Jun. 10, 2003
Filed:
Sep. 11, 2000
Gregg D. Scheller, Chesterfield, MO (US);
Michael D. Auld, Chesterfield, MO (US);
Christopher F. Lumpkin, O'Fallon, MO (US);
Synergetics, Inc., St. Charles, MO (US);
Abstract
A microsurgical instrument used in ophthalmic surgery to remove proliferative membranes during a surgical procedure treating proliferative vitreoretinal membrane disorders and other macular diseases where the microsurgical instrument has a instrument handle, a tip, and abrasive particles attached to a scraping edge projecting beyond the tip. The microsurgical instrument may be fitted with infusion, aspiration, or illumination sources, and these sources are directed to the surgical site in proximity to the scraping edge, the abrasive particles on the edge scrape membranes to remove tissue at the surgical site. In one embodiment, the microsurgical instrument may be configured with a retractable/extendable pick where the relative stiffness of the pick and the edge may be adjusted. In another embodiment the edge may also be angularly positionable as it is retracted/extended from the microsurgical instrument.