Suction Canister Having A Replaceable Filter Cartridge

摘要

A canister assembly for use with a medical suction or aspiration device having a ball float assembly defined in the lid. The lid accepts a replaceable filter cartridge containing a filter element. The ball float engages the replaceable filter cartridge when the canister is near full.

主权项

1. A lid assembly for a suction canister comprising:
a lid body, having a lip defined therein for engagement with a canister; a hollow cylindrical structure, having a top portion extending above a top surface of said lid and a bottom portion extending below a bottom surface of said lid, such that said bottom portion of said cylindrical structure will contact fluid collected in a canister to which it is attached when the canister is nearly full; a bottom wall, covering all or a portion of the open end of said bottom portion of said cylindrical structure; one or more slots, defined in the bottom portion of said cylindrical structure, allowing fluid communication with the canister; and one or more tabs, defined in bottom portion of said cylindrical structure, said tabs extending into the interior of said cylindrical structure at said one or more slots.