A - Human Necessities – 61 – L
Patent
A - Human Necessities
61
L
A61L 2/04 (2006.01)
Patent
CA 2068909
A sterilizing apparatus and method for contaminated syringe needles includes an elongated heating tube having a central bore capable of receiving only the needle of a syringe assembly and which is heated by electrical resistance material surrounding the tube. Precise regulation over the interval and level of heating of the tube is provided through a power controller associated with logic circuitry, switches and a series of timers sequential- ly initiated. In this manner, should a fault in the apparatus exist and the temperature within the heating tube not reach at least 482 degrees C. within the duration of the cycle of a first one of the timers, the power controller interrupts passage of current to the heating tube. On the other hand, when this tem- perature is achieved during the time cycle of the first timer, a second timer is initiated and allows continued passage of current to the heating tube for a prescribed interval calculated to achieve the desired sterilization. The concentrated heat as applied to the air within the restrictive tube bore additionally physically renders the sterilized needle un-usable as it will have been annealed and this fact will be apparent from its black- ened appearance.
Gettig William A.
Shook Larry E.
Gettig Technologies Incorporated
Mcfadden Fincham
LandOfFree
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