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Disinfecting system

A radiation source and energy technology, which is applied in disinfection, irradiation, sanitary equipment for toilets, etc., can solve problems such as unsatisfactory, low efficiency, and slowness

Inactive Publication Date: 2004-01-21
JOHNSON & JOHNSON VISION CARE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disinfection methods applying pulsed light disinfection are both inefficient and slow, and are far from ideal if UV calorimeters are used to provide instantaneous and on-line monitoring

Method used

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  • Disinfecting system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The control system described here is used to generate radiation spectrograms for the individual radiation sources of the PurePulse PB1-4 system. Radiation between 240nm and 280nm was measured at a power level of 52% from 21 mm from one of the two lamps. Radiation was measured from -25mm to 25mm in 5mm increments from the center of the lamp perpendicular to the axis of the lamp. The graph obtained by the system is attached image 3 shown.

Embodiment 2

[0060] The radiation spectrum of the lamp was measured when the lamp was new and after 2600 flashes. Although the total energy of the lamp is only reduced by 3.4% (such as using a thermopile calorimeter), the attached Figure 4 It was shown that the energy of the lamp between 240nm and 280nm (this radiation range is the limit of disinfection) has been reduced by 8.6%. A change in the energy of the lamp between 240 and 280 nm is sufficient to cause more resistant microorganisms to survive. However, the system cannot detect this change, it is only able to measure changes in total energy. in the attached Figure 4 In , the solid line is the measurement result of the radiation spectrum of the new lamp, and the dotted line represents the measurement result of the radiation spectrum after 2600 flashes.

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PUM

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Abstract

A sterilization system comprising: radiation source; optical and / or electrical sensors; and timing means; wherein the measurement of radiation by said optical sensor is substantially synchronized based on said timing means to the start and end of each pulse of radiation from said radiation source or to the start and end of the exposure of a product to said radiation source.

Description

technical field [0001] The present invention relates broadly to the disinfection of medical equipment by ultraviolet radiation, and more particularly to a disinfection system by which the amount of radiation produced by the disinfection system can be measured, and the measurement and control The method of radiation dose produced by the disinfection system. Background technique [0002] Sterilization of medical devices, especially during the manufacture of commercial contact lenses, generally involves some form of temperature and / or pressure based sterilization techniques. For example, a hydrophilic contact lens is typically first formed by injecting a monomer mixture into a mold. The monomer mixture is then polymerized (ie, the lens is cured). After other optional processing steps such as quality inspection, the lens is placed in a container containing the solution and the container is sealed. The packaged lenses are sterilized for an extended period of time, usually at l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L2/08A61L2/00A61L2/10A61L12/06B65B25/00B65B55/08
CPCA61L2/10B65B25/008A61L12/063A61L2/00
Inventor J·A·埃贝尔J·B·恩斯P·德科尔迪D·因格拉姆
Owner JOHNSON & JOHNSON VISION CARE INC