Additive effect enhanced hydrogen peroxide disinfection method and apparatus
AssigneeAtrion Medical Products, Inc.
InventorRowland W. Kanner
Life of this patent
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Abstract
A method which enhances a disinfection process by obtaining an additive effect from energy and byproducts of the decomposition process. Also disclosed are contact lens disinfecting systems, wherein the systems are configured to create the desirable elevated pressure, oxygen saturation and sustained peroxide concentration conditions within a contact lens holding and reaction chamber, in order to enhance disinfection by additive effect. The systems are configured to provide that an elevated pressure is maintained in the reaction chamber before venting occurs.
Claims20
A disinfecting system for using solution and a catalyst to disinfect an object, said disinfecting system comprising;
- a cup configured to retain the solution therein;
- and a cap assembly engageable with the cup and configured to retain the object as well as the catalyst, said cap assembly comprising a shiftable member, said shiftable member comprising a plunger, a plunger cap on the plunger, and a biasing member between the plunger and the plunger cap, wherein the plunger is shiftable between a first position for sealing the disinfecting system and a second position for venting the disinfecting system, and a control spring in contact with the plunger cap when the plunger is in the second position and configured to bias the plunger from the second position to the first position, said plunger cap being between the plunger and the control spring, wherein the biasing member is configured to bias the plunger away from the plunger cap, wherein the disinfecting system is configured such that pressure within the disinfecting system increases as a result of the solution reacting to the catalyst, during which time additive effect enhances disinfection of the object, and during which time the plunger is in said first position, wherein the disinfecting system is configured such that pressure within the disinfecting system further increases, thereby causing the plunger to shift from the first position to the second position, thereby causing venting of the disinfecting system, and wherein the disinfecting system is configured such that pressure within the disinfecting system decreases during venting, thereby causing the biasing member to push the plunger away from the plunger cap, causing the plunger to shift from the second position to the first position, thereby causing resealing of the disinfecting system, wherein the disinfecting system is configured such that pressure within the disinfecting system increases again, thereby causing the plunger to shift from the first position to the second position, thereby causing venting of the disinfecting system, wherein the disinfecting system is configured such that pressure within the disinfecting system decreases again during venting, thereby causing the control spring to push and move the shiftable member, thereby causing resealing of the disinfecting system.
Dependencies are inferred from the claim text.