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AssigneeJohnson & Johnson Medical, Inc.
InventorsPatricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli
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A method and apparatus for detecting exposure to an oxidation-type sterilant using a chemical indicator comprising bleachable dye is disclosed. Using the method and apparatus disclosed, a bleachable azo dye is incorporated with an anodized aluminum or chromate conversion coated surface and exposed to an oxidation-type sterilant, such as hydrogen peroxide, and inspected upon completion of the sterilization process for color change. If exposed to sterilant for an appropriate amount of time the bleachable dye changes color thereby indicating adequate sterilization. The surface incorporating bleachable dye may be made to change color after a predetermined number of exposures to a oxidation-type sterilant.
A method for indicating adequate exposure to an oxidative sterilant or disinfectant comprising:
A method for determining if a device has been exposed to an oxidation-type sterilization process a predetermined number of times comprising:
An apparatus for determining exposure to an oxidation-type sterilization comprising:
Dependencies are inferred from the claim text.