Irrigation/aspiration apparatus

Details Irrigation/aspiration apparatus Irrigation/aspiration apparatus

2011-01-11

2011-01-11

Sirmons, Kevin C (Department: 3767)

Surgery

Means for introducing or removing material from body for...

Material introduced into and removed from body through...

C604S027000, C604S030000, C604S031000, C604S131000, C604S149000, C604S151000

Reexamination Certificate

active

07867191

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.

REFERENCES:
patent: 4246932 (1981-01-01), Raines
patent: 4493695 (1985-01-01), Cook
patent: 5897524 (1999-04-01), Wortrich et al.
patent: 6723065 (2004-04-01), Kishimoto
patent: 6780166 (2004-08-01), Kanda et al.
patent: A-10-043229 (1998-02-01), None
patent: A-2001-170102 (2001-06-01), None
patent: A-2001-212169 (2001-08-01), None

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