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. 07, 2000
Filed:
Jul. 18, 1997
Thomas A Silvestrini, Alamo, CA (US);
Robert A Proudfoot, Santa Clara, CA (US);
John A Scholl, Danville, CA (US);
Kera Vision Inc., Freemont, CA (US);
Abstract
This invention is a vacuum centering device which may be used in conjunction with other surgical instruments in opthomological surgery. The device provides an improved interface with the eye by way of features that reduce interference with a patient's eyelids interocular pressure and/or the propensity to rotate. These features may include a flared outer wall portion which may either be curved or straight for a section, providing a low profile vacuum chamber, and/or the use of a non-circular outer sealing region potentially producing a saddle-shaped outer periphery providing for potentially increased vacuum exposure to the eye and a contour resistant to rotation.