Systems and methods for ablating body tissue use an electrode for contacting tissue to form a tissue-electrode interface. The electrode is adapted to be connected to a source of ablation energy to conduct ablation energy for transmission by the electrode into tissue at the tissue-electrode interface. The electrode is preferably cooled. The systems and methods include multiple temperature sensing e...

A safety shield for use in laparoscopic or like electrosurgical procedures where the shield surrounds the active electrode and extends from a trocar or the like to the field of view of the surgical procedure. The shield is connected to the return lead via a low impedance path which includes monitor circuitry for determining whether the shield current is associated with an abnormal condition. The s...

Azeotrope-like compositions of 1,1,1,3,3-pentafluoropropane and 1,1-dichloro-1-fluoroethane are provided. The compositions of the invention are useful in the preparation of polyurethane and polyisocyanurate foams and as aerosol propellants.

A process for producing polyurethane rigid foams comprises reacting a) organic polyisocyanates b) relatively high molecular weight compounds containing at least two respective hydrogen atoms and, if desired, c) low molecular weight chain extenders and/or crosslinkers in the presence of d) blowing agents e) catalysts and, if desired, f) auxiliaries and additives, wherein the relatively high molecul...

Polyurethane/urea elastomers having an isocyanate equivalent index below 100, preferably from about 15 to about 80; containing an effective amount of polyisocyanate component, and an effective amount of an isocyanate reactive component comprising at least one polyamine and at least one polyol, wherein said elastomer contains from about 1 to about 199 equivalent percent amine per isocyanate equival...

PCT No. PCT/EP94/03890 Sec. 371 Date Jul. 3, 1996 Sec. 102(e) Date Jul. 3, 1996 PCT Filed Nov. 24, 1994 PCT Pub. No. WO95/15349 PCT Pub. Date Jun. 8, 1995A polyurethane composition for the production of single-component polyurethane foams on dry or wet substrates, wherein the composition is the reaction product of a polyol with a molar excess of difunctional or polyfunctional isocyanates and where...

A method of processing a digital signal wherein multiple signal values are simultaneously operated upon in a single register. The register is not segmented in hardware, but is segmented by operation of a controlling computer software program. The controlling computer software arranges the digital signal in a computer memory in such a manner as to permit the register to be loaded with a plurality o...

The method of the invention is concerned with the manufacture of a molded copper-chromium family metal based alloy article which involves the steps of injection-molding a mixture of copper powder, a chromium family metal powder, an iron family metal powder and a thermoplastic organic binder made up of a polymer binder and low molecular binder in a ratio by volume of 5:1 to 1:1, dewaxing a molded b...

PROBLEM TO BE SOLVED: To provide a method for preserving a food, capable of storing an agricultural food such as stored grain while maintaining its qualities for a long period of time by preserving the agricultural food in a space at a specific temperature at a prescribed humidity. SOLUTION: An agricultural food to be preserved is treated with a highhumidity air having a mixed system of air ion co...

PROBLEM TO BE SOLVED: To replace conventional railway white signal lamps using incandescent lamps with an arrangement of two types of light-emitting diodes(LEDs), while allowing emitting color to be changed little when one of these LEDs is broken. SOLUTION: On a substrate, a plurality of yellow LEDs 13b are unidirectionally and closely disposed allowing a little number of cyanblue LEDs 13a to be i...

PROBLEM TO BE SOLVED: To obtain a prophylactic and/or treating agent for a hyperphosphatemia, containing a pharmaceutically acceptable anion exchange resin as an active ingredient and useful for a prophylaxis and/or a treatment for a hyperphosphatemia caused by a disease of a functional disturbance of kidney. SOLUTION: This prophylactic and/or treating agent for a hyperphosphotemia comprises a pha...

The invention relates to a novel process for depolymerizing polyesters by subjecting the polyesters to catalysts and organic solvents which are substantially free of oxygen and water in order to produce macrocyclic polyester oligomers substantially free of hydroxybutyl terminated linear impurities.

PROBLEM TO BE SOLVED: To increase the strength of a column of a handrail provided on a coping against the external force in the horizontal direction by inserting and screwing a fixing bolt into a trapezoidal raised part which is short in the side on the inner edge side and inclined toward the inner side edge, and welding a head part. SOLUTION: A trapezoidal raised part 3 which is inclined in the d...

Three software routines are used. The first tests that the computer's real time clock (RTC) can perform the transition to the year 2000 properly. The second installs a routine for updating the century stored by the RTC's memory when the transition to the year 2000 occurs and is used in the case where the RTC cannot itself perform the transition to the year 2000 correctly. The third scans program, ...

Disclosed is a crosslinked cellulose composite film including a regenerated cellulose matrix containing a uniform dispersion of hemp fibers and a poly(ethylene oxide) plasticizer. A method for forming the film includes mixing a slurry of the hemp, poly(ethylene oxide) and a cellulose solvent with a cellulose solution, extruding the mixture, regenerating the cellulose from the solution to form the ...

A drive device comprises a gearbox (1) of the motorcycle type in which a selector shaft (10), via its angular position, enables the gear ratio in which the gearbox will be engaged to be determined. The device is provided with an electronic control device (DCE) designed to automatically place the gearbox (1), or in other words the selector shaft (10), in the position corresponding to the gear selec...

Tower packing element comprising a tubular body member with an essentially triangular cross-section and having projections within the element extending from the inside surface of the body member, is provided. The axial length of the tubular body member is smaller than the width as measured from an apex of the triangle to the nearest point on the opposed side.

A biodegradable filament nonwoven fabric comprising a nonwoven web made up of filaments, each filament comprising a high melting point component composed of a first aliphatic polyester having biodegradability and a low melting point component composed of a second aliphatic polyester having biodegradability with a melting point lower than that of the high melting point component, the nonwoven web p...

PCT No. PCT/US94/10491 Sec. 371 Date Mar. 12, 1996 Sec. 102(e) Date Mar. 12, 1996 PCT Filed Sep. 16, 1994 PCT Pub. No. WO95/10560 PCT Pub. Date Apr. 20, 1995Disclosed is a foam structure of desirable mechanical strength made with a low molecular weight alkenyl aromatic polymer material and an inorganic blowing agent. The polymer material has an alkenyl aromatic polymer of a weight average molecula...

PCT No. PCT/JP93/01051 Sec. 371 Date Mar. 25, 1994 Sec. 102(e) Date Mar. 25, 1994 PCT Filed Jul. 27, 1993 PCT Pub. No. WO94/03531 PCT Pub. Date Feb. 17, 1994There is provided a polytetrafluoroethylene (PTFE) porous material which has improved adhesion and improved buckling resistance on bending without a tearing problem along a tubular axial direction. The porous material is composed of a polytetr...