Abstract: A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assembly (42) which is latched (74, 94) with the nipples and which receives a disposable desiccant cartridge (40). In an alternate embodiment, a reusable desiccant cartridge (40?) is connected directly to the nipples (72, 92). When the desiccant cartridge (40?) is saturated, it is removed and placed in a regenerator unit (120). A regenerated cartridge is installed in its place.

Abstract: A biological indicator for monitoring the effectiveness of a sterilizing, disinfecting, etc., compound or condition is disclosed which comprises a substrate having a surface layer containing functional groups thereon desirably free of silicone linking groups. The functional groups are desirably in the form of a monolayer of a uniformed distribution and of a selected quantity. Various types of microorganisms such as spores and/or etiological agents are covalently bonded to the surface layer functional groups through a crosslinking reagent and thus form a uniform number and distribution of the microorganisms and/or etiological agents. After being subjected to sterilization or other similar treatment, etc., along with various articles such as instruments, the indicator can be cultivated to determine the effectiveness of the sterilization, disinfection, etc. process.

Abstract: A biological indicator for monitoring the effectiveness of a sterilizing, disinfecting, etc., compound or condition is disclosed which comprises a substrate having a surface layer containing functional groups thereon desirably free of silicone linking groups. The functional groups are desirably in the form of a monolayer of a uniformed distribution and of a selected quantity. Various types of microorganisms such as spores and/or etiological agents are covalently bonded to the surface layer functional groups through a crosslinking reagent and thus form a uniform number and distribution of the microorganisms and/or etiological agents. After being subjected to sterilization or other similar treatment, etc., along with various articles such as instruments, the indicator can be cultivated to determine the effectiveness of the sterilization, disinfection, etc. process.

Abstract: A cartridge holder (30) for an automated endoscope reprocessor (10) is mounted on a movable rack (14). As the rack is wheeled into the chamber, a connector (164) on the cartridge holder (164) automatically makes a fluid connection with a connection port (158) within the chamber. The cartridge holder includes a base (42) and a lid (44), which is pivotally connected to the base by a hinge (110). A cartridge (40) holding a dose of a disinfectant concentrate or reagents is positioned in a well (50) defined by the base and the lid closed. Water flows through the cartridge holder via a fluid passageway (A) defined in part by the lid and in part by the hinge. The water mixes with the concentrate or reagents and the resulting disinfectant solution passes out of a lower end (205) of the cartridge into the well. The solution flows upwardly, around the cartridge, through an annular space (232) between the cartridge and the well, disinfecting the well in the process.

Abstract: A method of treating the surfaces of medical instruments which are contaminated with prions includes contacting the surface with a composition containing a source of peroxide ions, such as hydrogen peroxide, at a molar concentration of at least 1.5M peroxide (equivalent to approximately 5% hydrogen peroxide) and preferably, about 2M peroxide (approximately 7% hydrogen peroxide). The composition is optionally in the form of a gel. The composition is retained in contact with the surfaces for about 1-2 hours until all or substantially all prion contamination is removed.

Abstract: When microbial contamination is introduced into a room (20*) of an enclosure, such as a building, an HVAC system including supply ductwork (16) and a return ductwork (34) is decontaminated with hydrogen peroxide vapor. A decontamination controller (46) operates controllable baffles (22) at outlet registers (20), temporary controllable baffles (44) at inlet registers (30), and a blower system (10) to circulate hydrogen peroxide vapor from hydrogen peroxide vapor generators (42) through the ductwork in both forward and reverse directions. Further, at least portions of the baffles are closed to create dwell times in which the hydrogen peroxide vapor resides in the ductwork with minimal or turbulent flow.

Abstract: When microbial contamination is introduced into a room (20*) of an enclosure, such as a building, an HVAC system including supply ductwork (16) and a return ductwork (34) is decontaminated with hydrogen peroxide vapor. A decontamination controller (46) operates controllable baffles (22) at outlet registers (20), temporary controllable baffles (44) at inlet registers (30), and a blower system (10) to circulate hydrogen peroxide vapor from hydrogen peroxide vapor generators (42) through the ductwork in both forward and reverse directions. Further, at least portions of the baffles are closed to create dwell times in which the hydrogen peroxide vapor resides in the ductwork with minimal or turbulent flow.

Abstract: A system for microbially and/or chemically decontaminating a room such as a hotel room includes a vapor generator which supplies a decontaminant vapor, such as hydrogen peroxide vapor to the room. The room is then aerated to a level at which it is safe for normal occupants to enter. By using a two step aeration, with a second step at lower humidity than the first, the concentration of residual hydrogen peroxide is reduced rapidly to safe levels of 1 ppm or less, typically about 0.5 ppm, in under four hours. The room is rendered substantially free of contaminants, such as those responsible for Severe Acute Respiratory Syndrome (SARS), Norwalk virus, and unpleasant odors.

Abstract: A cartridge holder (30) for an automated endoscope reprocessor (10) is mounted on a movable rack (14). As the rack is wheeled into the chamber, a connector (164) on the cartridge holder (164) automatically makes a fluid connection with a connection port (158) within the chamber. The cartridge holder includes a base (42) and a lid (44), which is pivotally connected to the base by a hinge (110). A cartridge (40) holding a dose of a disinfectant concentrate or reagents is positioned in a well (50) defined by the base and the lid closed. Water flows through the cartridge holder via a fluid passageway (A) defined in part by the lid and in part by the hinge. The water mixes with the concentrate or reagents and the resulting disinfectant solution passes out of a lower end (205) of the cartridge into the well. The solution flows upwardly, around the cartridge, through an annular space (232) between the cartridge and the well, disinfecting the well in the process.

Abstract: A one part, solids containing decontamination blend composition comprises a solid acetyl donor coated with a compound that protects it from hydrolysis, a peroxygen source, optionally a catalyst, optionally a surfactant, and optionally a buffer. The decontamination blend composition is generally in a dry powder, particle, etc. form or in a tablet, pill, etc. form and is complete in and of itself in that no additional compounds are required prior to use and is readily distributed as a one package system. Upon the addition of water, a peroxygen compound such as hydrogen peroxide is formed, and peracetic acid is generated under alkaline conditions. The decontamination blend composition is particularly suitable for oxidizing various chemical and biological compounds thereby eradicating the same in situ as on surfaces, clothes, articles, and the like. Representative contaminants include mustard gas, nerve gas, bacterial toxins, anthrax, bird flu, and the like.

Abstract: A surgical light system (10) includes a lighthead (44) coupled to a suspension arm (41?) adapted for mounting to a surface (14) of a surgical room. A bulb (130) is disposed in the lighthead. A processor (120) in the lighthead is operatively coupled with the bulb for controlling an intensity of light of the bulb and is adapted to generate a lighthead status signal representative of a first status of the lighthead. A control apparatus (32, 34) is in operative communication with the processor (120) in the lighthead. The control apparatus receives the lighthead status signal and selects a set of control algorithms from among a group of algorithms based on the lighthead status signal for controlling the lighthead.

Abstract: A method of microbially deactivating items and storing the same, comprising the steps of: a) placing items within a cavity in a sealable container having fluid access ports therein, the fluid access ports having a normally closed position and being moveable to an open position; b) placing the container having items to be microbially deactivated in the cavity into a reprocessor having a circulation system for circulating a microbial deactivation fluid during a deactivation cycle, wherein the fluid access ports in the container are moved to the open position to be in fluid communication with the circulation systems by contact with the reprocessor; c) circulating the microbial deactivation fluid through the cavity of the container; and d) removing the container from the reprocessor following a deactivation cycle, wherein removal of the container from the reprocessor causes the fluid access ports to assume the normally closed position.

Abstract: Antimicrobial compositions which can be used wherever disinfecting compositions are needed, such as in a hospital, healthcare industry, workplace, recreational facility, home or similar environment. The antimicrobial compositions are particularly useful as a topical application for a substrate, such as skin and can be used as a hand sanitizer or pre-surgical scrub. The compositions comprise a synergistic combination of a simple aliphatic alcohol and an activity enhancing substance, wherein the composition provides, heretofore unexpected, persistent activity against a broad range of microorganisms, including gram-negative organisms, while moisturizing the skin.

Abstract: Mail which may be contaminated with a biotoxin, such as Anthrax, is received in a preliminary sorting area (16) including a dirty side sorting room (40) that is sealed to the ambient environment. The mail is loaded into a pass-through decontamination system (22) in which the mail is sterilized or otherwise decontaminated. The mail is removed from the pass-through system in a second or clean room (18) which is isolated from the first. The mail is then sorted and processed in the lean room (18). In the event that the sorting room (40) becomes contaminated or is suspected of being contaminated by pathogenic biological or chemical agents, a spray system (86) supplies a decontamination gas into the preliminary sorting area (16) to decontaminate the dirty side sorting room (40), any equipment (42, 44) in the room, and any mail located in the room.

Abstract: A vapor decontamination system for decontaminating a defined region. The system is comprised of a chamber defining a region, and a generator for generating vaporized hydrogen peroxide from a solution of hydrogen peroxide and water. A closed loop circulating system is provided for supplying the vaporized hydrogen peroxide to the region. A destroyer within the closed loop circulating system breaks down the vaporized hydrogen peroxide. A bypass conduit is provided to bypass the destroyer. A controller causes vaporized hydrogen peroxide from the generator to bypass the destroyer during a predetermined phase of operation.

Abstract: A loading device for a tunnel washer having a primary conveyor for conveying articles to be washed through the tunnel washer. The loading device includes a frame having a pair of spaced apart legs attached thereto and a conveyor belt. The conveyor belt has an upper surface that is movable and defines a path from a first end to a second end. The loading device also includes an adjusting device for changing a height of the first end relative to the second end. The adjusting device is mounted to the pair legs at one end and is attached to the frame at another end. The second end of the upper surface is disposed adjacent to the tunnel washer and the legs are dimensioned such that the article can be discharged from the second end of the upper surface onto the primary conveyor of the tunnel washer.

Abstract: A system for data acquisition providing dual monitoring of sensor data. Data is acquired from sensing devices by a primary data acquisition circuit and a secondary data acquisition circuit. Multiple sensors are used to sense a condition of the same operating parameters, in order to verify a process condition. Data acquired by first and second sensing devices are respectively processed by the primary and secondary data acquisition circuits. According to one aspect of the present invention, a process condition is verified by comparing data associated with the first sensing device and data associated with the second sensing device. In accordance with another aspect of the present invention data acquired by a single sensing device may be processed through both the primary data acquisition circuit and the secondary data acquisition circuit, in order to verify operation of the primary and secondary data acquisition circuits.

Abstract: A sensor for detecting hydrogen peroxide, comprising an element exhibiting piezoelectric properties having a metal-oxide-containing coating, the metal-oxide having a divalent or tetravalent state.

Abstract: A container for holding powdered reagents that interact with water to form an anti-microbial fluid for use in an apparatus for cleaning and microbially deactivating items. The container includes a fluid inlet connectable to a source of water on an apparatus for cleaning and microbially deactivating items and a fluid outlet in fluid communication with items to be microbially deactivated. A continuous fluid passage is defined through the container between the fluid inlet and the fluid outlet. A plurality of spaced-apart barrier elements are disposed within the fluid passage to define a plurality of isolated compartments within the container. The barrier elements are impervious to powdered reagents, but permeable to the chemical reagents when dissolved in a liquid. A first dry, powdered reagent is disposed within one of the compartments for forming an anti-microbial solution when water flows through the container.