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US 11,079,340 B2Granted
Methods of monitoring wetness utilizing a resonant circuit
Assignee3M Innovative Properties Company
InventorsG. Marco Bommarito, Justin M. Johnson, Kevin D. Landgrebe, Xin X. Wang
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Abstract
Methods that include: subjecting an article including a moisture sensor to steam sterilization in a steam sterilizer to produce a sterilized article, the moisture sensor having a moisture absorbing layer and a resonant circuit; subjecting the sterilized article to drying; and interrogating the resonant circuit, wherein the interrogation is affected by an amount of water present in the moisture absorbing layer.
Claims16
A method comprising:
- (a) subjecting an article comprising a moisture sensor to a sterilization process to produce a sterilized article, the sterilization process is a steam sterilization process, the moisture sensor comprising a moisture absorbing layer and a resonant circuit;
- (al) subjecting the sterilized article to a first drying step after subjecting the article to the sterilization process and before interrogating the resonant circuit;
- (b) conducting a first interrogation step comprising interrogating the resonant circuit, wherein the interrogating is affected by an amount of moisture present in the moisture absorbing layer;
- and
- (c) subjecting the sterilized article to a second drying step after interrogating the resonant circuit.
2 more elements
Dependencies are inferred from the claim text.