IP Library Granted Patent US 7,001,441
Granted Patent B2
US 7,001,441 · App. 10/872,230 · Granted Feb 21, 2006

Sterilization container filter system

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Quick Facts
Patent No.
US 7,001,441
App. No.
10/872,230
Granted
Feb 21, 2006
Kind
B2
Abstract

The invention described herein relates to a filter system for sterilization containers which secures a gas permeable filter onto a vented portion of the container. The filter system of the invention includes a locking mechanism that is comfortable and easy to use, and that requires a simple sliding movement of the users hand to lock and unlock the filter system components in place. The invention further includes a filter system structured such that the openings of the filter system plates permit transport of air across the filter while at the same time the openings are arranged to reduce or prevent undesirable physical perforation of the filter. By virtue of its structure, the need for particular rotational positioning of filter components in relation to one another is significantly reduced. The filter system of the invention also reduces or eliminates the need for perimeter gaskets. The invention is useful in a variety of medical applications wherein sterilization of medical devices and instruments is associated with a surgical treatment or procedure.

Claims (4)

1. A filter system for sterilization container having a vented portion comprising a plurality of openings, said filter system comprising:

a first filter retention plate comprising a plurality of openings;

a second protective plate comprising a plurality of openings;

wherein said first filter retention plate and second protective plate are structured so that the openings thereof and said openings of said vented portion are arranged to permit substantially unobstructed movement of air across said filter while forming a barrier to transverse physical perforation of said filter, said openings maintaining such barrier irrespective of rotational positioning of said plates relative to a central axis.

Assignments (1)
CORRECTIVE ASSIGNMENT TO CORRECT THE EFFECTIVE DATE OF 29 JULY 2009 PREVIOUSLY RECORDED ON REEL 023518 FRAME 0760. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECT EFFECTIVE DATE OF THE CHANGE OF NAME AS BEING 03 AUGUST 2009.. Recorded Jul 8, 2011
From: CARDINAL HEALTH CMP 200, INC
To: CAREFUSION 2200, INC
Reel/Frame 026560/0843 →