05750184 is referenced by 27 patents and cites 35 patents.

A biological indicator is formed from two members (or a sheet with one portion folded onto another portion) which are sealed together and form a pathway having three sections. One section opens to the exterior and is preferably configured as a tortuous path. A middle pathway portion downstream of the tortuous path houses a frangible ampule. The frangible ampule contains growth medium for microorganisms. An interior pathway portion (most downstream from the exterior) houses a carrier inoculated with spores of a microorganism. The biological indicator preferably is prepared by a process in which a thermoplastic sheet has the pathway formed by thermoforming and the sealing is by heat sealing.

Title
Unitary biological indicator for gaseous sterilants and process
Application Number
8/574642
Publication Number
5750184
Application Date
December 19, 1995
Publication Date
May 12, 1998
Inventor
Richard Imburgia
Vernon Hills
IL, US
Agent
Majestic Parsons Siebert & Hsue P C
Assignee
Pharmaceutical Systems
IL, US
IPC
G01N 21/00
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