2646results about How to "Avoid contamination" patented technology

Antimicrobial compositions, especially those useful when applied topically, particularly to mucosal tissues (i.e., mucous membranes), including a cationic antiseptic such as biguanides and bisbiguanides such as chlorhexidine and its various salts including but not limited to the digluconate, diacetate, dimethosulfate, and dilactate salts; polymeric quaternary ammonium compounds such as polyhexamethylenebiguanide; silver and various silver complexes; small molecule quaternary ammonium compounds such as benzalkoium chloride and alkyl substituted derivatives; di-long chain alkyl (C8-C18) quaternary ammonium compounds; cetylpyridinium halides and their derivatives; benzethonium chloride and its alkyl substituted derivatives; and octenidine. The compositions can also include an enhancer component, a surfactant, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

Antimicrobial compositions, especially those useful when applied topically to tissue, such as mucosal tissues (i.e., mucous membranes), that include an antimicrobial selected from the group consisting of peroxides, C6-C14 alkyl carboxylic acids, C6-C14 alkyl carboxylate ester carboxylic acids, C8-C22 mono- or polyunsaturated carboxylic acids, and antimicrobial natural oils. The compositions can also include an enhancer component, a surfactant, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

Antimicrobial compositions, especially those useful when applied topically, particularly to mucosal tissues (i.e., mucous membranes), including an antiseptic selected from the group consisting of halogenated phenols, bisphenols, diphenyl ethers, anilides and derivatives thereof, and combinations thereof. The compositions can also include an enhancer component, a surfactant, a hydrophobic component, and/or a hydrophilic component. Such compositions provide effective topical antimicrobial activity and are accordingly useful in the treatment and/or prevention of conditions that are caused, or aggravated by, microorganisms (including viruses).

The disclosure relates to a method and apparatus for preventing oxidation or contamination during a circuit printing operation. The circuit printing operation can be directed to OLED-type printing. In an exemplary embodiment, the printing process is conducted at a load-locked printer housing having one or more of chambers. Each chamber is partitioned from the other chambers by physical gates or fluidic curtains. A controller coordinates transportation of a substrate through the system and purges the system by timely opening appropriate gates. The controller may also control the printing operation by energizing the print-head at a time when the substrate is positioned substantially thereunder.

A device (10) used with high frequency ultrasound provides a replaceable barrier between the ultrasound transducer and the tissues being imaged. The device (10) provides an acoustic pathway of minimal effect on the ultrasound signals, and furthermore provides for a safety barrier between a mechanical scanner and the tissues being imaged. The configuration of the device (10) allows it to function as a standoff for the ultrasound transducer to place the focus of the ultrasound beam at the desired depth of tissue for imaging. In addition, the device (10) may be sterilized and replaced as needed, providing sterile tissue contact surfaces. The device (10) has additional features, which are especially advantageous for diagnosis and surgery of the eye.

A thin film transistor, a method of manufacturing the thin film transistor, and a flat panel display device including the thin film transistor. The thin film transistor includes: a gate electrode formed on a substrate; a gate insulating film formed on the gate electrode; an activation layer formed on the gate insulating film; a passivation layer including a compound semiconductor oxide, formed on the activation layer; and source and drain electrodes that contact the activation layer.

A disposable aerosol generator for use with an inhaler device which includes a heater adapted to volatilize fluid stored in the disposable aerosol generator and method of using the inhaler. The disposable body includes a sealed chamber and an outlet, the chamber being located between first and second layers of material. The chamber holds a predetermined volume of a fluid which is expelled through the outlet when the fluid in the chamber is volatilized by the heater. The disposable body can include a series of spaced apart aerosol generators, each of which can be advanced to a release position at which the heater can heat one of the fluid containing chambers. Prior to heating the fluid, the outlet can be formed by severing the first and/or second layer with a piercing element and the volatilized fluid can be expelled from the outlet into a passage of a dispensing member.

A down hole flow control tool for use in a well bore, such as a bridge or frac plug, includes back-flow vent holes in a central mandrel and initially covered by a member on the mandrel, such as a lower slip or a lower cone. In a subsequent, set configuration, the member moves away from the vent hole allowing back flow of well fluids.

A light active device includes a semiconductor particulate dispersed within a carrier material. A first contact layer is provided so on application of an electric field charge carriers having a polarity are injected into the semiconductor particulate through the carrier material. A second contact layer is provided so on application of the electric field to the second contact layer charge carriers having an opposite polarity are injected into the semiconductor particulate through the carrier material. The semiconductor particulate comprises at least one of an organic and an inorganic semiconductor. The semiconductor particulate may comprise an organic light active particulate. When constructed as a light emitting device, an electric field applied to the semiconductor particulate through the carrier causes charge carriers of opposite polarity to be injected into the semiconductor particulate. The charge carriers combine to form carrier pairs which decay and give off light.

A bag-in-bag-in-bottle assembly formed by a flexible dispensing container with a dispensing fitment. The dispensing container is positioned adjacent or sandwiched between one or more flexible pressurization containers having a separate inlet/outlet path through a second fitment. The bag-in-bag assembly can then be placed in a containment vessel with the fitments mounted such that it is accessible on the vessel. A liquid can be extracted from the dispensing container by introducing a fluid into the pressurization container(s) with enough pressure to force the liquid out through the dispensing fitment. A contoured dispensing head may be coupled to the bag-in-bag-in-bottle assembly using a earn actuation arrangement for simultaneously locking the pressurization, vent and fluid extraction couplings.

A bipolar cardiac vein lead and method of assembly is provided wherein the lead includes a flexible coil anode electrode such that the lead may be advanced through a tortuous pathway. The coil electrode is coupled to a conductor using a method of assembly that minimizes or eliminates rigid components, maintaining flexibility of the distal lead end. Multi-polar cardiac vein leads may include multiple flexible coil electrodes to achieve pacing and/or sensing in the left atrium and the left ventricle or at multiple left heart sites.

Heat exchange systems are provided that include one or more polymeric hollow fibers. Exemplary hollow fibers are asymmetric and include a microporous wall and a dense skin formed thereon, thereby preventing liquid transmission and/or contamination through the wall of the hollow fiber while simultaneously enhancing heat transfer based on the presence of liquid molecules within the porous substructure of the hollow fiber. The hollow fibers may be employed in a variety of heat transfer-related commercial/industrial applications, including solvent-aqueous systems, organic-aqueous systems, organic-organic systems, desalination applications, solar heating applications, applications in the chemical industry, applications in the biomedical industry, and applications in the biotechnology or pharmaceutical industry, e.g., extracorporeal blood oxygenation systems. Heat transfer systems wherein steam is advantageously condensed on a first side of a polymeric, hollow fiber-based heat exchanger are also provided. The condensed steam provides energy that may be used to heat water and/or other liquids that flow on a second side of the polymeric, hollow fibers.

A packaging system for the storage of an ionic, hydrogel contact lens employs an aqueous packaging solution including a phosphorylcholine polymer. Preferably, the solution has an osmolality of at least about 200 mOsm/kg, a pH of about 6 to about 8 and is heat sterilized.

The invention provides an automatic assembly machine for an infusion apparatus, and belongs to the technical field of medicinal instruments. The automatic assembly machine solves the problem of low automation degree of the conventional infusion apparatus assembly machine. The automatic assembly machine for the infusion apparatus comprises a frame, wherein the frame is glidingly connected with a feeding sliding table; a feeding driving mechanism is arranged between the frame and the feeding sliding table; two sides of the feeding sliding table are fixedly provided with a plurality of pairs of clamping stations distributed opposite; the inlet end of the feeding sliding table is provided with an infusion long tube feeding device; one side of the feeding sliding table is sequentially providedwith a flow box assembly device, a switching wheel assembly device, an infusion short tube assembly device and a filter assembly device; the other side of the feeding sliding table is sequentially provided with a dropping bottle assembly device, a two-way tube assembly device, an infusion medium tube assembly device and a bottle inserting needle assembly device; and the outlet end of the feeding sliding table is also provided with an unloading device for taking the assembled infusion apparatus assembly out of the clamping station. The automatic assembly machine for the infusion apparatus has high positioning accuracy, accurate clamping position and high automation degree.

Bio-impedance may be used for navigation systems to chronically implant pacing and defibrillation leads in the heart using anon-fluoroscopic position sensing unit (PSU), such as a modified LocaLisa® system from Medtronic Inc., which allows for variable frequency sampling of the position of electrode of a catheter. The PSU injects small AC signals via surface electrodes in three orthogonal axes, each on a slightly different frequency (e.g., near 30 KHz). Indwelling electrodes electrically connected to the PSU resolves the magnitude of induced voltage for each of the three frequencies, thus measuring voltage for each of the three axes. Voltages are divided by induced current to yield impedance in each axis for each electrode. Impedance is proportional to position within the body. Such a system requires that a conductive material, such as a retractable helical tip-electrode, be exposed during implantation. Since the tip is retracted during implantation, this disclosure provides a modified distal portion employing at least one aperture (or “window”) for fluid exposure of the helix-electrode and a deployable internal sleeve for covering the aperture(s) when the helix-electrode is extended.

A logic device having a vertically extending MIM capacitor between interconnect layers includes a semiconductor substrate. A lower interconnect layer is located over the semiconductor substrate, and an upper interconnect layer is located over the lower interconnect layer. A U-shaped lower metal plate is interposed between the lower interconnect layer and the upper interconnect layer. The U-shaped lower metal plate directly contacts the lower interconnect layer. The capacitor dielectric layer covers the inner surface of the lower metal plate. Further, the capacitor dielectric layer has an extension portion interposed between the brim of the lower metal plate and the upper interconnect layer. An upper metal plate covers the inner surface of the capacitor dielectric layer. The upper metal plate is in contact with the upper interconnect layer and is confined by the capacitor dielectric layer.

The invention provides an apparatus for safely storing and retrieving power cords and electronic wiring associated with a mobile intravenous pole serving patients in intensive care settings wherein a plurality of devices are required and enabling the patient to be mobile without causing power cords and wiring to become tangled and dragging on patient room or hospital floors.

Disclosed are methods for making SOI and SOG structures using purified ion shower for implanting ions to the donor substrate. The purified ion shower provides expedient, efficient, low-cost and effective ion implantation while minimizing damage to the exfoliation film.

A pump assembly suitable for negative pressure wound therapy that includes an internal filter for preventing contamination in various components of the pump assembly, such as the pump unit. The internal filter is located in an isolated filter chamber, and inlet vacuum tubing that could contain fluids or bacteria are located inside a double containment sleeve to prevent contamination of components of the pump. The inlet vacuum tubing may be removed without opening the main pump housing and without contaminating the contents of the pump housing.

Improved cap assemblies which isolate materials in containers, e.g., bottles, vials, multi-vial trays, multi-well trays, etc., during processes while permitting vapor to pass into or out of the container, such as during freeze drying and the like, and facilitate subsequent closure of the container to cease such vapor passage (e.g., stoppering, etc.). The cap assembly optimizes containment of solute, prevents contamination, is easy to use and is readily compatible with validated industrial drying processes.

A needle has a hollow shaft, a tip formed at one end of the shaft, one or more ports in fluid communication with the interior of the hollow shaft, and a closure. The closure and/or the shaft is movable between (i) a first position wherein the closure closes the port(s), and (ii) a second position opening the port(s).