684results about How to "Reduce contamination" patented technology

Embodiments of nanoelectronic sensors are described, including sensors for detecting analytes such ammonia. An environmental control system employing nanoelectronic sensors is described. A personnel safety system configured as a disposable badge employing nanoelectronic sensors is described. A method of dynamic sampling and exposure of a sensor providing a number of operational advantages is described.

An automatic exchanger apparatus for peritoneal dialysis fluids is provided having a dialysis fluid bag and a drained fluid bag and arranged for connecting and disconnecting between the end of a peritoneal dialysis circuit equipped with a branching point and the end of a tube extending from a patient to drain the waste dialysis fluid from the cavity of the patient and fill the peritoneal cavity of the patient with a fresh peritoneal dialysis fluid for exchange, and in particular comprises: means A, B, and C for carrying out respectively a step (A) of connecting the end of the patient side tube to the end of the peritoneal dialysis circuit, a step (B) of delivering and draining the waste fluid, and a step (C) of, disconnecting the two ends and connecting the end of the patient side tube to its shut-off member, arranged for carrying out their respective steps (A) and (C) automatically; and a controlling means for controlling the respectively means to execute their respectively steps in a sequence. The apparatus is simple in the construction while carrying out, with much ease, the connection and disconnection of the tubes and the exchange of the fluids including a waste and a fresh supply one, hence avoiding operational errors of the operator and minimizing the possibility of infection and contamination.

An inflatable resuscitation face mask comprising a top sheet joined to a bottom sheet to form an inflatable pocket which when inflated forms a raised body having an apex and a lower perimeter, wherein inflation means is provided on the mask and an opening at the apex allows air to be administered through the opening to an area underneath the inflated mask.

A method of producing a multi-component cigarette filter having one more filter component than the number of hoppers on the machine producing the cigarette filter rods. A dual hopper machine can produce two-component filters as well as three-component filters, and a three hopper machine can produce three-component filters as well as four-component filters.

A digital camera module (200) includes a lens holder (20), a lens module (30) received in the lens holder, and an image sensor chip package (40) mounted to the lens holder. The lens module includes a lens barrel (301) movably engaged in the lens holder and at least one lens (302) received in the lens barrel. The image sensor chip package includes a base (401), an image sensor chip (402) mounted on the base, a transparent cover (405), and an adhesive (50) positioning the transparent cover with respect to the image sensor chip. The adhesive and the transparent cover cooperatively seal the image sensor chip therein.

The invention discloses a dry sand maker which comprises a hollow crushing cavity (2). A hollow dust removal cavity (5) is arranged under the hollow crushing cavity (2); the upper end of a feeding channel (6) is hermetically connected with a feeding mouth (22) and the lower end (61) thereof is positioned in the dust removal cavity (5) on which an air vent (7) is also arranged; an air duct (8) is arranged in the dust removal cavity (5); the lower end (61) of the feeding channel (6) is staggered with the upper end (81) of the air duct (8) in the horizontal direction; the bottom surface of the dust removal cavity (5) is provided with an outlet (51); a dust absorption component is hermetically connected with the lower end (82) of the air duct (8) or the air vent (7) after passing through the outlet (51). The invention also provides a method for drying sand making simultaneously. By adopting the dry sand maker, the drying sand making can have the advantages of high production efficiency and low environmental pollution.

The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

In one embodiment, a spin coating process comprises: dispensing a solution of a solution solvent and about 3 to about 30 wt % thermoplastic polymer, based upon the total weight of the solution, wherein the solution solvent has a boiling point at atmospheric pressure of about 110° C. to about 250° C., a polarity index of greater than or equal to about 4.0, a pH of about 5.5 to about 9; spinning the substrate; and removing the solution solvent to produce a coated substrate comprising a coating having less than or equal to 10 asperities over the entire surface of the coated substrate.

The present invention is to provide a method of manufacturing a circuit layout on a touch panel by utilizing metal plating technology, comprising uniformly coating a conductive metal or conductive oxidized metal on predetermined areas proximate edges of a transparent conductive layer on a transparent glass substrate for forming a circuit by utilizing metal plating technology, which has the advantages of uniform thickness of circuit, higher hardness, better adhesion of the plated material to the underlying substrate, whether it is a resistive film or bare glass, improved weathering and chemical properties, and solderability.

A light source apparatus for generating a plasma and supplying a light irradiated from the plasma to an optical system, said light source apparatus includes a chamber for accommodating a region that generates the plasma, wherein a density of a hydrocarbon compound included in a gas in the chamber is 300 ppb or less.