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:
Apr. 06, 1993
Filed:
Mar. 21, 1991
Jay L Federman, Philadelphia, PA (US);
Escalon Ophthalmics, Inc., Skillman, NJ (US);
Abstract
Foreign substances may be removed from a mammalian body cavity containing an aqueous phase by injecting into the cavity a water-immiscible, optically clear, biocompatible debridement fluid to at least partially displace the aqueous phase, and removing the aqueous phase and the foreign substances. In addition, a method is provided for visualizing a transparent foreign substance in a mammalian body cavity using a water-immiscible, optically clear, biocompatible fluid having a refractive index different from that of water. The debridement fluid may also be used to reposition desirable substances, such as a lens in an ocular cavity, or to remove a secondary membrane from a cavity lining or structure. Preferably, a liquid heavier than water, such as a perfluorocarbon liquid, is used as the debridement fluid.