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. 11, 2011
Filed:
Aug. 01, 2007
Nobuo Suzuki, Nukata-gun, JP;
Nobuo Suzuki, Nukata-gun, JP;
Nidek Co., Ltd., Gamagori-Shi, JP;
Abstract
To provide an irrigation/aspiration apparatus by which a trouble for an operator is reduced and handling is facilitated and which is capable of preventing a sharp decrease of pressure of an anterior chamber with a simple constitution. The apparatus has a chamber storing an irrigation liquid, a vent tube for making the liquid flow into an aspiration tube, a leading vent leading the liquid into the chamber from an irrigation tube, an outflow pipe extended in an up-and-down direction, an opening formed on a wall of the outflow pipe, of which a width is narrow and set such that an opening is closed by the liquid under surface tension when a liquid level of the liquid inside the chamber rises, an outflow vent to which the irrigation tube or a vent tube is connected, and an air chamber which is a space provided above an inflow hole of the outflow pipe.