98results about "Investigating sterilization degree" patented technology

There is provided a device (10) for monitoring sterilization of a material with steam comprising at least one layer (20), having incorporated therein an isomeric indicator (22), capable of undergoing at least one color change and optionally a controller (23) for said indicator capable of influencing the time and temperature required for said color change when contact with steam. Composed of polymeric binder (21).

Embodiments of the invention relate to a medical device with a visual indicator that changes color when exposed to a particular environment and / or chemical. The visual indicator may be printed or otherwise affixed on a portion of a medical device, for example the handle, and initially have the same color as that portion. When exposed to a particular environment and / or chemical, the visual indicator changes color so that it has a different color than that portion of the medical device.

An oxidative dye solution comprises an indicating dye that has been reacted with a reducing agent. The pre-reacted dye when subjected to an oxidizing disinfection or sterilization agent such as peracetic acid or hydrogen peroxide under goes a visible color change and thus can serve as a chemical, process, or chemical integrator, indicator. The dyes include various azines, thiazines, and oxazines compounds and the reducing agents include alkali metal alkyloxides and alkaline earth metal alkyloxide compounds.

The present invention generally relates to fluorescent marking compositions and their use to determine whether a surface has been cleaned. More particularly, the marking compositions comprise fluorescent polymers.

The disclosure provides compositions and methods for making a colorized solution of an aqueous disinfectant that is both stable in bulk solution and will fade to clear within a predetermined period of time after being applied to a surface, for example as a spray or film. The compositions and methods described here allow an end user to visualize both the extent of coverage and the duration of contact of the disinfectant with the surface, thereby providing more efficient disinfection of the surface.

The invention relates to a chemical indication composition, a steam sterilization indication tape using the chemical indication composition and a manufacturing method thereof. The chemical indication composition provided by the invention comprises: an indicator, an organosilicon modified polymer and a solvent, wherein the indicator comprises a bismuth compound, a sulfur source and a compound that can generate alkaline conditions when it is exposed to high temperature water vapor. The chemical indication composition can be directly applied to a non-adhesive surface of an adhesive tape, thus realizing preparation of the steam sterilization indication tape by one step.

An indicator for sterilization comprising an indication chemical which is useful in plasma sterilization with the use of hydrogen peroxide; and a packaging material for sterilization which has an indication unit comprising the above indicator for sterilization and in which a substance to be subjected to a plasma sterilization treatment is packaged. The above-described indicator for sterilization contains (A) one or more compounds selected from the group consisting of adsorption indication chemicals and chelate titration / metal indication chemicals and (B) an organic metal compound and shows an irreversible color change at a high speed. Thus, it enables definite judgment whether or not a subject has been plasma sterilized and, therefore, is useful as an indicator for plasma sterilization. By further adding (C) a polyhydric alcohol to the indicator, the color change speed can be elevated and well controlled, thereby giving favorable indication performance. The above-described packaging material for sterilization is a packaging material which has a part made of a gas-permeable paper or nonwoven fabric and in which a substance to be subjected to a plasma sterilization treatment is packaged. Since the above-described indicator for sterilization is employed in the indication unit of this packaging material, it can be definitely judged whether or not a subject has been plasma sterilized without affecting the sterilization performance.

A pathogen surrogate, formed by a DNA tag or bar code and a carrier, is described for use in the validation and verification of sanitation, such as in food processing operations and for wash water systems for fresh produce. The carrier material is selected so that the pathogen surrogate mimics the behavior of a pathogen when subjected to a sanitation operation. One or more surrogates can be introduced in to an environment, which is then subjected to sanitation process, followed by a detection process using the DNA tag of the surrogate.

Radiant energy control systems, methods, and apparatuses are provided. An example light emitting device may comprise a sensor operable to detect whether a space is occupied, and a controller in communication with the sensor and operable to cause output, via a first light emitter for a first time period in the space, of a white light comprising a spectral energy of up to 30% energy in a wavelength range of 380 to 420 nm, cause output, via a second light emitter for a second time period in the space, of a non-white light comprising a spectral energy greater than 70% energy in the wavelength range of 380 to 420 nm, and switch, based on whether the space is occupied and to achieve a minimum dosage of light in the wavelength range of 380 to 420 nm during a third period that includes the first time period and the second time period, between causing output of the white light and causing output of the non-white light.

Sterilization indicators that include a neutralizer, such indicators useful for testing the effectiveness of a sterilization procedure by measuring the activity of an active enzyme whose activity is correlated with the survival of microorganisms.

The present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, exhibiting excellent heat resistance, with the gasification of the color-changing layer or the scattering of the fine debris of the color-changing layer caused by the plasma treatment being suppressed to such a degree as to not affect the electronic device properties. Specifically, the present invention provides a plasma treatment detection indicator including a color-changing layer that changes color by plasma treatment, the color-changing layer containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi in the form of a simple substance and / or an inorganic compound containing at least one metal element selected from the group consisting of Mo, W, Sn, V, Ce, Te, and Bi.