A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 2/10 (2006.01) A61L 12/06 (2006.01)
Patent
CA 2299692
This invention provides a process of sterilizing a medical device, and preferably the contents of a sealed container which comprises said medical device, comprising the step of exposing said medical device to ultraviolet radiation whereby the D value of Bacillus stearothermophilus (ATCC 7953) is at least 3.9 mJ/cm2 ultraviolet radiation in the range of 240-280 nm to the spore. Further, this invention provides a process of sterilizing a medical device comprising the step of subjecting said medical device to ultraviolet radiation wherein the minimum total energy density of said ultraviolet radiation in the range of 240-280 nm which reaches the microorganisms present on said medical device is at least 18 mJ/cm2. This invention further provides an apparatus for delivering UV radiation to a medical device for sterilization comprising a radiation source and a reflector for said radiation source wherein said reflector directs radiation from said radiation source such that at least 3 J/cm2 broad spectrum radiation of which at least 50 mJ/cm2 of said radiation is UV radiation in the range of 240-280 nm to a treatment area for said medical device, said treatment area is at the focal plane of said reflector. This invention provides a process and apparatus in which sterilization can be achieved in less than 20 seconds, preferably less than 15 seconds, more preferably in less than 5 seconds. The process and apparatus are efficient and continuous.
Beaton Stephen R.
Brown-Skrobot Susan K.
Bussey Eric P.
Cristol David A.
Ebel James A.
Johnson & Johnson Vision Care Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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