Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving viable micro-organism
Patent
1996-05-13
1998-04-07
Beisner, William H.
Chemistry: molecular biology and microbiology
Measuring or testing process involving enzymes or...
Involving viable micro-organism
4352874, 4352876, 4352882, C12Q 122, C12M 134
Patent
active
057363552
ABSTRACT:
A self contained biological indicator (A) determines an effectiveness of a microbial decontamination process. A dart (68) has a seal (80) engaged by rim (58) in detents (50C) in fins (36A-36F) of a cap (C). The dart has a cutting edge (76) aligned just above a foil seal (86) sealing a growth medium (F) in a medium housing (D). The dart has a chamber (72) in which challenge spores or other microorganisms on a paper disk (74) are housed. A microporous membrane (G) traps the challenge spores in the chamber while allowing a microbial decontamination fluid to flow through to contact the spores. The housing is lodged by a flange (56) in detents (50A) in fins (36A-36F). After the microbial decontamination process is complete, the cap is forced toward medium housing causing the rim and the flange to dislodge from their respective detents and lodge in detents (50B) resulting in the puncturing of the foil seal, the sealing of the dart within the medium housing and the immersion of the dart and the challenge spores into the growth medium.
REFERENCES:
patent: 2854384 (1958-09-01), Beakley et al.
patent: 3134725 (1964-05-01), Brook et al.
patent: 3239429 (1966-03-01), Menolasino et al.
patent: 3255926 (1966-06-01), Modderno
patent: 3378168 (1968-04-01), Hildebrandt
patent: 3440144 (1969-04-01), Andersen
patent: 3585112 (1971-06-01), Ernst
patent: 3613955 (1971-10-01), Wetherell, Jr.
patent: 3616263 (1971-10-01), Anandam
patent: 3657073 (1972-04-01), Burton et al.
patent: 3752743 (1973-08-01), Henshilwood
patent: 3762540 (1973-10-01), Baumann et al.
patent: 3875012 (1975-04-01), Dorn et al.
patent: 3968872 (1976-07-01), Cavazza
patent: 4136775 (1979-01-01), Zaltsman
patent: 4252904 (1981-02-01), Nelson et al.
patent: 4291122 (1981-09-01), Orelski
patent: 4596773 (1986-06-01), Wheeler, Jr.
patent: 4885253 (1989-12-01), Kralovic
patent: 4937115 (1990-06-01), Leatherman
patent: 5500184 (1996-03-01), Palmer
patent: 5516648 (1996-05-01), Malchesky et al.
Dyke Denis G.
Kralovic Raymond C.
Malchesky Paul S.
Richardson Donna M.
Switka Joseph J.
Beisner William H.
Steris Corporation
LandOfFree
Self contained biological indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self contained biological indicator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self contained biological indicator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-11698