Method, device and composition for the sustained release of an antimicrobial gas
First Claim
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1. A method of generating chlorine dioxide gas comprising:
- providing a dry solid composition which reacts in the presence of water or water vapor to produce an antimicrobially active gas, but does not react in the absence of water or water vapor, and exposing the composition to a moist environment, wherein the composition is divided into a plurality of separate portions, each contained in a separate sealed compartment of a container housing, and the sealed compartments are sequentially unsealed to expose the contents thereof to the environment around said container housing in response to a predetermined stimulus event.
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Abstract
A unitary container housing having a plurality of sealed compartments each containing a dry composition which will gradually release an antimicrobially active gas upon exposure to moist air, and each compartment being separately openable to expose its contents to the environment, and a method of using the same.
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Citations
19 Claims
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1. A method of generating chlorine dioxide gas comprising:
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providing a dry solid composition which reacts in the presence of water or water vapor to produce an antimicrobially active gas, but does not react in the absence of water or water vapor, and exposing the composition to a moist environment, wherein the composition is divided into a plurality of separate portions, each contained in a separate sealed compartment of a container housing, and the sealed compartments are sequentially unsealed to expose the contents thereof to the environment around said container housing in response to a predetermined stimulus event. - View Dependent Claims (2, 3, 4, 5)
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6. A device for delivering an antimicrobially active gas comprising
a unitary container housing having a plurality of sealed compartments each containing a dry composition which will gradually release chlorine dioxide upon exposure to moist air, a compartment opener operable on said unitary container housing to open a said compartment in sequence in response to an opening signal and a controller operable to periodically issue a opening signal to the opener. 7.The device of claim 6 wherein said controller issues an opening signal in response to a timing program.
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9. A unitary container housing having a plurality of sealed compartments each containing a dry composition which will gradually release chlorine dioxide upon exposure to moist air, and each compartment being separately openable to expose its contents to the environment.
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10. A container housing as in claim 10 wherein each of the compartments is sealed by a thermoplastic film cover.
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11. A device for the sustained release of an antimicrobially active gas comprising:
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a) a power supply;
b) an electrical switch;
c) a plurality of conductors connected to said electrical switch each of which terminates in an electrode;
d) a controller operatively connected to said power supply and said electrical switch; and
e) a container having a top and a bottom housing a plurality of sealed pockets, each pocket containing a composition which generates an antimicrobially active gas upon exposure to water or water vapor and wherein each electrode is attached to a pocket;
wherein the controller directs the switch to apply power sequentially to each conductor for a first predetermined time interval with a second predetermined time interval between each application of power for opening said sealed pockets.
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- 12. The device of claim 12 wherein said top is film or a film laminate having at least a first layer and a second layer.
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19. A method for the sustained release of an antimicrobially active gas comprising the steps of:
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a) providing a container having a plurality of sealed pockets each of which contains a composition which generates an antimicrobially active gas upon exposure to water or water vapor, a plurality of conductors terminated in an electrode and each electrode attached to at least one of said plurality of said sealed pockets, an electrical switch connected to said conductors which is in turn connected to a power source; and
b) sequentially supplying power to each of said conductors for a first predetermined time interval with a second predetermined time interval between each application of power for opening said sealed pockets.
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Specification