Patent application number | Description | Published |
20080213123 | Doped Iridium with Improved High-Temperature Properties - The invention relates to an iridium alloy of at least 85% by weight iridium, at least 0.005% by weight molybdenum, 0.001 to 0.6% by weight hafnium and, if necessary, rhenium, the sum of molybdenum and hafnium being between 0.002 and 1.2% by weight, and to a process for the production of an iridium alloy, an IrMo and an IrHf master alloy, respectively, being produced in the electric arc and immersed into an iridium melt, if necessary together with Re. | 09-04-2008 |
20080295925 | PT/PD ALLOY WIRES, STRIPS OR RESHAPED PARTS HARDENED BY OXIDE DISPERSION, AND PROCESS OF PRODUCING THE SAME - A wire, strip or reshaped part is produced from an alloy based on platinum, palladium or a mixture of platinum and palladium and hardened by oxide dispersion. The wire, strip or reshaped part cross-section exhibits a peripheral zone in which at least one relatively easily volatilized oxide generator is depleted by at least 25%. In addition, a process is provided for production of such a wire, strip or reshaped part, in which a porous skin is produced thermally on the wire, strip or reshaped part, and the porous skin is compacted by conversion into a soft or impermeable skin. | 12-04-2008 |
20100276646 | PT OR PT ALLOY MATERIALS HARDENED BY OXIDE DISPERSION, PRODUCED BY INNER OXIDATION AND HAVING PROPORTIONS OF OXIDE AND GOOD DUCTILITY - A solid body of a metal alloy comprising less than 99% by weight of noble metal and more than 1% by weight of dispersion-strengthening metals is converted for production of a dispersion-strengthened platinum material by at least 90% oxidation of the dispersion-strengthening metals into a dispersion-strengthened platinum material. The dispersion-strengthened platinum material contains a noble metal component and a dispersion-strengthening agent, the proportion by mass of the noble metal component amounting to between 95 and 99% by weight and the noble metal component of platinum or a platinum alloy including at least 55% by weight Pt, 0 to 30% by weight Rh, 0 to 30% by weight Au, and 0 to 40% by weight Pd. The remaining proportion by mass of more than 1% by weight is a dispersion-strengthening agent, which contains at least one metal oxidized at least 90% by weight with oxygen, the metal being selected from the group of Ce, Zr, Sc, and Y. | 11-04-2010 |
20100329922 | INCREASING THE STRENGTH OF IRIDIUM, RHODIUM, AND ALLOYS THEREOF - The addition of 0.5 to 30 ppm boron and 0.5 to 20 ppm calcium to iridium and the Zr- and Hf-free alloys thereof and rhodium and the Zr- and Hf-free alloys thereof surprisingly increases the creep rupture strength at high temperatures, in particular around 1,800° C. | 12-30-2010 |
20110129406 | METAL FIBERS FOR CATALYST NON-WOVENS - A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400 ° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers. | 06-02-2011 |
20110198983 | COMPOSITE PRODUCED FROM INTERMETALLIC PHASES AND METAL - A method is provided for producing a wire or tape, especially for use as an electrode or electrode tip in spark plugs. The method includes the following steps: (a) producing an intermetallic compound having a melting point above 1700° C.; (b) grinding the intermetallic compound; (c) mixing the intermetallic compound with metal powder; (d) introducing the mixture obtained in step (c) in a tube produced from ductile material; and (e) shaping the tube filled in step (d) to give a wire or tape. Also provided are a wrapped wire or wrapped tape, especially a semifinished product for producing electrodes or electrode tips of spark plugs. | 08-18-2011 |
20120000582 | TREATMENT OF BORON-CONTAINING, PLATINUM GROUP METAL-BASED ALLOYS - Castings made of boron-containing alloys based on at least one platinum group metal are treated by thermal ageing in the presence of oxygen and at temperatures below the melting point of the alloy. This enables the alloys to be processed at temperatures customary in the jewelry industry. The treated castings can also be processed into medical technology products. | 01-05-2012 |
20130040807 | NON-WOVEN MATERIAL OR NETTING OF METAL FIBERS - A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers. | 02-14-2013 |
20130186146 | REDUCTION OF THE EVAPORATION RATE OUT OF PLATINUM AND Pt ALLOYS - Methods for reducing the evaporation rate of platinum and Pt alloys upon their use at high temperatures >1,200° C. in an oxidizing atmosphere include the steps: (A) providing a component made of platinum or a platinum alloy; (B) wrapping the outer surface of the component with a flexible bandage having open porosity and provided with an oxide ceramic material and/or a glass-forming material; (C) using the component at operating temperatures >1,200° C. Methods for scavenging noble metal oxides evaporating or sublimating from the surface of platinum or Pt alloys include: (A) providing a component made of platinum or a platinum alloy; (B) wrapping the outer surface of the component with a flexible bandage having open porosity; and (C) using the component at operating temperatures >1,200° C. Correspondingly wrapped components are also provided. | 07-25-2013 |
Patent application number | Description | Published |
20130338473 | SYSTEMS, METHODS, AND SENSORS FOR MEASURING TISSUE - Embodiments of devices and methods for evaluating tissue are disclosed. In one embodiment, a method for measuring a characteristic of a tissue may include passing a current through the tissue, measuring a signal corresponding to the voltage resulting from passing the current through the tissue, analyzing current passed through the tissue and resulting voltage to determine the electrical characteristics of the tissue; and analyzing the electrical characteristics of the tissue to determine a status of the tissue. Disposable sensors are disclosed. | 12-19-2013 |
20140039341 | DEVICES AND METHODS FOR EVALUATING TISSUE - Embodiments of devices and methods for evaluating tissue are disclosed. In one embodiment, a method for measuring a characteristic of a tissue may include passing a current through the tissue, measuring a signal corresponding to the voltage resulting from passing the current through the tissue, analyzing current passed through the tissue and resulting voltage to determine the electrical characteristics of the tissue; and analyzing the electrical characteristics of the tissue to determine a status of the tissue. | 02-06-2014 |
20160038053 | SENSORS, INCLUDING DISPOSABLE SENSORS, FOR MEASURING TISSUE - Embodiments of devices and methods for evaluating tissue are disclosed. In one embodiment, a method for measuring a characteristic of a tissue may include passing a current through the tissue, measuring a signal corresponding to the voltage resulting from passing the current through the tissue, analyzing current passed through the tissue and resulting voltage to determine the electrical characteristics of the tissue; and analyzing the electrical characteristics of the tissue to determine a status of the tissue. Disposable sensors are disclosed. | 02-11-2016 |
Patent application number | Description | Published |
20110201854 | LOW OXYGEN BIOMASS-DERIVED PYROLYSIS OILS AND METHODS FOR PRODUCING THE SAME - Methods are provided for producing low oxygen biomass-derived pyrolysis oil from carbonaceous biomass feedstock. The carbonaceous biomass feedstock is pyrolyzed in the presence of a steam reforming catalyst to produce char and pyrolysis gases. During pyrolysis, a portion of the oxygenated hydrocarbons in the pyrolysis gases is converted into hydrocarbons by steam reforming also yielding carbon oxides and hydrogen gas. The hydrogen gas at least partially deoxygenates a residual portion of the oxygenated hydrocarbons. Additional hydrogen gas may also be produced by water-gas shift reactions to deoxygenate the residual portion of the oxygenated hydrocarbons in the pyrolysis gases. Deoxygenation may occur in the presence of a hydroprocessing catalyst. A condensable portion of the pyrolysis gases is condensed to form low oxygen biomass-derived pyrolysis oil. | 08-18-2011 |
20120167454 | PRETREATMENT OF FATS AND OILS IN THE PRODUCTION OF BIOFUELS - Methods are disclosed for the treatment of feedstocks comprising a fatty acid- or triglyceride-containing component to remove contaminants that are detrimental to the conversion of such feedstocks to hydrocarbons, and especially biofuel fractions such as diesel or aviation biofuels. Contaminants contributing to the presence of trace elements in animal fats and/or plant oils, as components of feedstocks, hinder the ability to catalytically convert these feedstocks, for example by hydroprocessing, to biofuels. | 07-05-2012 |
20130152454 | METHODS FOR DEOXYGENATING BIOMASS-DERIVED PYROLYSIS OIL - Methods for deoxygenating a biomass-derived pyrolysis oil are provided. In an embodiment, a method for deoxygenating a biomass-derived pyrolysis oil comprises the steps of combining a biomass-derived pyrolysis oil stream with a heated low-oxygen-pyoil diluent recycle stream to form a heated diluted pyoil feed stream. The heated diluted pyoil feed stream has a feed temperature of about 150° C. or greater. The heated diluted pyoil feed stream is contacted with a first deoxygenating catalyst in the presence of hydrogen at first hydroprocessing conditions effective to form a low-oxygen biomass-derived pyrolysis oil effluent. | 06-20-2013 |
20130158278 | METHODS FOR REMOVING CONTAMINANTS FROM ALGAL OIL - Methods for removing contaminants from algal oil are provided. In an embodiment, a method comprises the steps of combining a sulfuric acid-aqueous solution that has a pH of about 1 or less with a contaminant-containing algal oil at treatment conditions effective to form an effluent. The effluent comprises a treated algal oil phase and contaminants in an acidic aqueous phase. The contaminants comprise metals, phosphorus, or combinations thereof The acidic aqueous phase is removed from the effluent to form a contaminant-depleted algal oil. | 06-20-2013 |
20150069646 | CARBON-CARBON COMPOSITES FORMED USING PYROLYSIS OIL AND METHODS OF FORMING THE SAME - A technique of forming a carbon-carbon composite material may include infusing pyrolysis oil into a porous preform, polymerizing at least some components of the pyrolysis oil infused in the preform to form a phenolic resin, and pyrolyzing the phenolic resin to form a partially densified preform. Carbon-carbon composites formed from porous preforms in which pyrolysis oil comprising a phenolic compound and at least one of an aldehyde or ketone compound is disposed in pores of the preform are also described. | 03-12-2015 |
20150094482 | METHODS FOR REMOVING CONTAMINANTS FROM ALGAL OIL - Methods for removing contaminants from algal oil are provided. In an embodiment, a method comprises the steps of combining a sulfuric acid-aqueous solution that has a pH of about 1 or less with a contaminant-containing algal oil at treatment conditions effective to form an effluent. The effluent comprises a treated algal oil phase and contaminants in an acidic aqueous phase. The contaminants comprise metals, phosphorus, or combinations thereof. The acidic aqueous phase is removed from the effluent to form a contaminant-depleted algal oil. | 04-02-2015 |
20160090608 | METHODS AND APPARATUSES FOR TREATING BIOMASS - Methods and apparatuses for treating biomass are provided herein. In an embodiment, an exemplary method of treating biomass includes providing a biomass stream that includes a lipid component or a derivative thereof and a contaminant component that includes nitrogen, phosphorous, ammonia, or a combination thereof. The contaminant component is extracted from the biomass stream with a wash composition that includes water to produce a washed biomass stream that includes the lipid component and a waste water stream that includes the contaminant component. The waste water stream is contacted with a substrate that includes a bound microorganism to remove the contaminant component from the waste water stream. | 03-31-2016 |
Patent application number | Description | Published |
20080281228 | Guidewire with adjustable stiffness - A method of adjusting the stiffness and size of a guidewire without full withdrawal of the guidewire from a patient's vascular system comprising providing a guidewire system comprising an inner member having a first outer diameter and a first stiffness, an outer member having a third larger diameter and a third stiffness, and a stiffener positioned between the inner and outer members and having a second outer diameter larger than the first diameter and smaller than the third diameter. The method includes selectively changing the relative positions of the members to alter the pushability and stiffness of the guidewire system. | 11-13-2008 |
20080281229 | Guidewire with adjustable stiffness - A medical guidewire system comprising a first inner member having a first outer diameter, a second intermediate member having a second outer diameter larger than the first outer diameter, and a third outer member having a third diameter larger than the second outer diameter of the second member. The second member has a longitudinal extending opening to receive the first member for sliding movement with respect to the first member and the third outer member has a longitudinally extending opening to receive the second member for sliding movement with respect to the first and second member. The first member has a first stiffness, the third member has a third stiffness greater than the first stiffness, and the second member is movable to stiffen the guidewire system. | 11-13-2008 |
20090143768 | Guidewire with adjustable stiffness - A method of adjusting the stiffness and size of a guidewire without full withdrawal of the guidewire from a patient's vascular system comprising providing a guidewire system comprising an inner member having a first outer diameter and a first stiffness, an outer member having a third larger diameter and a third stiffness, and a stiffener positioned between the inner and outer members and having a second outer diameter larger than the first diameter and smaller than the third diameter. The method includes selectively changing the relative positions of the members to alter the pushability and stiffness of the guidewire system. | 06-04-2009 |
20090143769 | Guidewire with adjustable stiffness - A medical guidewire system comprising a first inner member having a first outer diameter, a second intermediate member having a second outer diameter larger than the first outer diameter, and a third outer member having a third diameter larger than the second outer diameter of the second member. The second member has a longitudinal extending opening to receive the first member for sliding movement with respect to the first member and the third outer member has a longitudinally extending opening to receive the second member for sliding movement with respect to the first and second member. The first member has a first stiffness, the third member has a third stiffness greater than the first stiffness, and the second member is movable to stiffen the guidewire system. | 06-04-2009 |
20100305475 | Guidewire with adjustable stiffness - A medical guidewire system including an inner member having an outer diameter and an outer member having an inner diameter, the inner diameter being larger than the outer diameter. The inner and outer members are relatively slidable to adjust a stiffness of the guidewire system. The lumen of the outer member forms a gap for fluid flow therethrough. A connector has a first end portion connected to the outer member, a second end portion connected to the inner member and a fluid infusion channel communicating with the gap for injection of fluid through the gap to exit a distal portion of the outer member. | 12-02-2010 |
20130131643 | GUIDEWIRE WITH ADJUSTABLE STIFFNESS - A medical guidewire system including an inner member having an outer diameter and an outer member having an inner diameter, the inner diameter being larger than the outer diameter. The inner and outer members are relatively slidable to adjust a stiffness of the guidewire system. The lumen of the outer member forms a gap for fluid flow therethrough. A connector to the inner member and a fluid infusion channel communicating with the gap for injection of fluid through the gap to exit a distal portion of the outer member. | 05-23-2013 |
20130131644 | GUIDEWIRE WITH ADJUSTABLE STIFFNESS - A medical guidewire system including an inner member having an outer diameter and an outer member having an inner diameter, the inner diameter being larger than the outer diameter. The inner and outer members are relatively slidable to adjust a stiffness of the guidewire system. The lumen of the outer member forms a gap for fluid flow therethrough. A connector to the inner member and a fluid infusion channel communicating with the gap for injection of fluid through the gap to exit a distal portion of the outer member. | 05-23-2013 |
Patent application number | Description | Published |
20130317485 | CAPTURE DEVICE - The present invention relates to a device and a method for capturing a guidewire being progressed along the lumen of a bodily duct and to direct it into a catheter. In one aspect a catheter-based eccentric cone capture means is used to engage and direct a guidewire oppositely approaching the capture means. | 11-28-2013 |
20130331735 | INTERVENTIONAL GUIDEWIRE - The present invention is an interventional guidewire particularly adapted for use in percutaneous transluminal angioplasty (PTA) procedures. A guidewire of this invention enhances peripheral vascular access for either diagnostic or therapeutic vascular or arterial procedures by having opposing ends of different stiffnesses. Retrograde dorsalis pedis artery access to upper body vascular occlusions is a particularly preferred application of this invention. | 12-12-2013 |
20140236126 | MULTICONDUCTOR OR MULTIPOLAR GUIDEWIRE - This invention is a multipolar or multi-conductor guidewire which can be navigated or steered through the vasculature from outside a patient's body to perform a medical procedure within the patient's vasculature. In one embodiment, a guidewire of this invention has at least 4, preferably at least 6, to as many as 10 or more distal-to-proximal conductive pathways, which are substantially longitudinally parallel to each other running linearly along substantially the majority if not the entire length of the guidewire body, preferably in a printed circuit format. In a further practice, the conductive pathways helically wound around the guidewire body. | 08-21-2014 |
20150032027 | LOW PROFILE, MULTI-CONDUCTOR GUIDEWIRE - This invention relates to medical guidewire having multiple electrically conductive pathways extending from substantially their distal ends to substantially their proximal ends. | 01-29-2015 |
Patent application number | Description | Published |
20100112713 | Methods For Detecting Colorectal Diseases And Disorders - The present invention relates to methods and compositions for the detection of biomarkers associated with colorectal diseases and disorders. In preferred embodiments, said colorectal disease is colorectal cancer. In some embodiments, the invention relates to the detection of said biomarkers using non-invasive methods. In further embodiments, the invention relates to the isolation and evaluation of biomarkers residing in feces from a subject at risk for or exhibiting symptoms associated with a colorectal disease or disorder. In still further embodiments, said biomarkers include exfoliated colonocytes. In additional embodiments, mRNA transcripts isolated from said colonocytes and associated with said colorectal diseases and disorders are quantified. | 05-06-2010 |
20100272824 | COMPOSITIONS AND METHODS FOR PREVENTING AND MONITORING DISEASE - Gene expression patterns were analyzed that identified multiple genes associated with radiation enhanced colon carcinogenesis. Some of the genes modulated by radiation exposure may be involved in up-regulating the Wnt/β-catenin signaling pathway and promote colon carcinogenesis. Consumption of a fish oil/pectin diet caused a general down-regulation of genes encoding proteins involved in cell adhesion and receptor activity, which may be involved in down-regulating the Wnt/β-catenin signaling pathway. The data suggest that dietary fish oil/pectin may be an effective countermeasure against radiation-induced colon carcinogenesis. In accordance with this, gene expression profiles can be monitored to reduce the risk of radiation induced carcinogenesis in high risk personnel (i.e., for example, astronauts) before, during, and/or after radiation exposure (i.e., for example, spaceflight), and/or to detect radiation-induced carcinogenesis so that an appropriate countermeasure administration can be implemented. The techniques are also targeted at non-invasively monitoring cancer patients after the primary cancer has been resected to determine if/when a secondary tumor develops. | 10-28-2010 |