Abstract: A device having a bone screw with a body, an outer thread and a proximal screw head. A fluid-permeable conduit is disposed in the body, begins at the head and opens out into a fluid outlet opening that is spaced apart from the head in the distal direction. An axial groove extends from the fluid outlet opening to the screw head. The base of the groove is deeper than the base of the outer thread. A cap detachably connects with the screw head, in which a fluid-permeable conduit is disposed, which opens out into the conduit of the bone screw. A hose for feeding fluid is connected or connectable in a fluid-permeable manner with the inlet opening on the cap so that a pharmaceutical fluid is pressable out of the fluid outlet opening through the hose, through the conduit of the cap and through the conduit of the bone screw.

Abstract: One aspect relates to an augmentation device comprising an annular cone surrounding a channel extending through the cone from a proximal cone end to a distal cone end of the cone. One aspect further relates to an augmentation system comprising such an augmentation device and an applicator, as well as an implantation method of an augmentation device using such an augmentation system.

Abstract: One aspect relates to a process for producing an electrical medical implant, comprising the following steps: a. providing an electrical feedthrough, which comprises a substrate, an electrical component, and a contact element; b. coating the electrical component with a layer.

Abstract: Provided is a titanium-containing quartz glass having excellent UV absorption. The quartz glass absorbs ultraviolet rays having a wavelength of 250 nm or less, ozone generation-related adverse effects on the human body, are prevented, a decrease in transmittance of the quartz glass in the range from near-ultraviolet to visible light due to being colored when irradiated with ultraviolet rays does not occur, absorption build-up or lamp burst-inducing deformation build-up, which is caused by a structural change in the quartz glass that occurs in the range of 200-300 nm when irradiated with ultraviolet rays, is suppressed, and a decrease in transmittance at intended wavelength ranges does not occur even when exposed to ultraviolet rays. The titanium-containing quartz glass having excellent UV absorption is colorless, wherein the average concentration of titanium is 10-500 ppm, the concentration of OH group is 10-350 ppm.

Abstract: One aspect is a heat reflective member, a laminated structure in which quartz glass layers are formed on an upper surface and a lower surface of a siliceous sintered powder layer. The heat reflective member has an impermeable layer formed at a portion of the siliceous sintered powder layer at a cut-out end portion of the heat reflective member. The impermeable layer has a thickness at least larger than half of a thickness of the siliceous sintered powder layer and through which a gas or a liquid is prevented from penetrating. A buffer layer is formed between the impermeable layer and the siliceous sintered powder layer next to the impermeable layer and spaced apart from the cut-out end portion. The buffer layer changes in density from the impermeable layer toward the siliceous sintered powder layer.

Abstract: A method for recovering precious metal from an acidic aqueous solution containing dissolved precious metal and free chlorine, comprising the following successive steps: (1) combining a salt of a non-precious metal present in a low oxidation state as a solid or as an aqueous solution with the acidic aqueous solution to consume the free chlorine and form an acidic aqueous mixture, and (2) adding non-precious metal to the acidic aqueous mixture formed in step (1) to precipitate elementary precious metal.

Abstract: One aspect is a reflective member, which has a laminated structure in which transparent quartz glass members are formed on an upper surface and a lower surface of an opaque siliceous sintered powder layer. The opaque siliceous sintered powder layer has a thickness of 0.1 mm or more and a thickness distribution of ±0.05 mm or less. When a load is applied to each of the transparent quartz glass members on an upper surface and a lower surface of the laminated structure in a direction parallel to the laminated structure, the reflective member is fractured at a load of 5 N or more per square centimeter. The laminated structure includes a semi-transparent portion having a width of 0.01 mm or less, which has an intermediate opacity between an opacity of the opaque siliceous sintered powder layer and an opacity of each of the transparent quartz glass members.

Abstract: The invention relates to a method for preparing a catalyst composition, wherein in an aqueous medium containing an iridium compound, at a pH 9, an iridium-containing solid is deposited on a support material, and the support material loaded with the iridium-containing solid is separated from the aqueous medium and dried, wherein, in the method, the support material loaded with the iridium-containing solid is not subjected to a thermal treatment at a temperature of more than 250° C. for a period of time of longer than 1 hour.

Abstract: Described is a process for the production of synthetic fused silica in which the deposition surface is located for a period of at least 50% of the build-up time of the soot body at a burner distance in which the horizontally integrated luminous intensity of the flame of the burner used in the targetless state is still at least ? of the maximum horizontally integrated luminous intensity of the flame.

Abstract: A method for homogenizing glass includes the method: providing a cylindrical blank composed of the glass having a cylindrical outer surface that extends along a longitudinal axis of the blank between a first end face and a second end face, forming a shear zone in the blank by softening a longitudinal section of the blank and subjecting it to a thermal-mechanical intermixing treatment, and displacing the shear zone along the longitudinal axis of the blank. The displacement of the shear zone along the longitudinal axis of the blank is superimposed by a simultaneous oscillating motion of the shear zone along the longitudinal axis of the blank. The first end of the blank is rotated at a first rotational speed and the second end of the blank is rotated at a second rotational speed. An oscillating motion of the shear zone is generated by periodically varying the first and/or second rotational speed.

Abstract: Methods are known for producing an anti-resonant hollow-core fiber which has a hollow core extending along a fiber longitudinal axis and an inner jacket region that surrounds the hollow core, said jacket region comprising multiple anti-resonant elements. The known methods have the steps of: providing a cladding tube that has a cladding tube inner bore and a cladding tube longitudinal axis along which a cladding tube wall extends that is delimited by an interior and an exterior; providing a number of tubular anti-resonant element preforms; arranging the anti-resonant element preforms at target positions of the interior of the cladding tube wall, thereby forming a primary preform which has a hollow core region and an inner jacket region; and elongating the primary preform in order to form the hollow-core fiber or further processing the primary preform in order to form a secondary preform.

Abstract: One aspect relates to a device for locally applying a medical fluid, including a flexibly deformable tube including a tube wall. The tube includes a plurality of openings in the tube wall, the plurality of openings connecting an inner line of the tube to the surroundings of the tube, and the tube being closed at a distal tube. A proximal tube end of the tube is liquid-permeably connectable to a container for the medical fluid such that the medical fluid from the container can be pushed through the proximal tube end of the tube into the inner line of the tube and can be pushed out through the plurality of openings into the surroundings of the tube.

Abstract: One aspect relates to an electrode-electrical conductor system for a medical device. The system includes one or more electrically insulated wire(s) or cable(s) wherein. The electrical insulation includes electrical conductor one or more partial opening(s), which is/are arranged on one side of the wire(s) or cable(s), and one or more electrode(s), which is/are mechanically and electrically connected to the wire(s) or cable(s) via the one or more partial opening(s) arranged on one side of the wire(s) or cable(s). The mechanical and electrical connections are made by welding, pressing, swaging, adhesives, brazing, soldering and/or dimples. One aspect also relates to a method for preparing such an electrode-electrical conductor system.

Abstract: Known processes for preparing a porous carbonaceous material require lengthy polymerization and washing steps involving solvents or neutralizing agents. The use of high quantities of pore formers leads to a lower carbon yield and higher costs, and use of sulphuric acid leads to sulphur contamination of the final material, but also to corrosion and corrosive by-products and a more complicated handling of the process. In order allows the manufacturing of a porous carbonaceous material with a high pore volume and avoiding the disadvantages of the known methods, a process is provide that comprise the steps of a) providing at least one carbon source and at least one amphiphilic species, b) combining at least the carbon source and the amphiphilic species to obtain a precursor material, c) heating the precursor material to a temperature in the range between 300° C. and 600° C.

Abstract: Methods are known for producing an anti-resonant hollow-core fiber which has a hollow core extending along a fiber longitudinal axis and an inner jacket region that surrounds the hollow core, said jacket region comprising multiple anti-resonant elements. The known methods have the steps of: providing a cladding tube that has a cladding tube inner bore and a cladding tube longitudinal axis along which a cladding tube wall extends that is delimited by an interior and an exterior; providing a number of tubular anti-resonant element preforms; arranging the anti-resonant element preforms at target positions of the interior of the cladding tube wall, thereby forming a primary preform which has a hollow core region and an inner jacket region; and elongating the primary preform in order to form the hollow-core fiber or further processing the primary preform in order to form a secondary preform.

Abstract: Methods are known for producing an anti-resonant hollow-core fiber which has a hollow core extending along a fiber longitudinal axis and an inner jacket region that surrounds the hollow core, said jacket region comprising multiple anti-resonant elements. The known methods have the steps of: providing a cladding tube that has a cladding tube inner bore and a cladding tube longitudinal axis along which a cladding tube wall extends that is delimited by an interior and an exterior; providing a number of tubular anti-resonant element preforms; arranging the anti-resonant element preforms at target positions of the interior of the cladding tube wall, thereby forming a primary preform which has a hollow core region and an inner jacket region; and elongating the primary preform in order to form the hollow-core fiber or further processing the primary preform in order to form a secondary preform.

Abstract: One aspect relates to a medical electrode, having a conductor, an insulation, which surrounds the conductor at least in some sections over its entire circumference, protrusions in the insulation, electrode segments arranged between the protrusions, and insulating areas arranged between the electrode segments, wherein the electrode segments have steps, wherein the steps engage with the insulating areas.

Abstract: A device for local administration of pharmaceutical fluids. The device has at least one capillary with at least one opening in the region of its distal end, a hollow intermediate piece which is connected with the at least one capillary so as to allow the passage of liquid, a guide for directing the intermediate piece which comprises a distal support for resting on the patient, and a fixing element for fixing the intermediate piece to the guide. The fixing element allows fixing of the intermediate piece in various positions relative to the guide. Such fixation prevents displacement of the intermediate piece in relation to the guide. Also disclosed is a method for preparing such a device.

Abstract: Methods are known for producing an anti-resonant hollow-core fiber which has a hollow core extending along a fiber longitudinal axis and an inner jacket region that surrounds the hollow core, said jacket region comprising multiple anti-resonant elements. The known methods have the steps of: providing a cladding tube that has a cladding tube inner bore and a cladding tube longitudinal axis along which a cladding tube wall extends that is delimited by an interior and an exterior; providing a number of tubular anti-resonant element preforms; arranging the anti-resonant element preforms at target positions of the interior of the cladding tube wall, thereby forming a primary preform which has a hollow core region and an inner jacket region; and further processing the primary preform in order to form a secondary preform, including a process of elongating the primary preform in order to directly form the hollow-core fiber or to form the secondary preform.

Abstract: Provided is a heat reflective member, which is prevented from braking even in a high-temperature environment. It generates no dust in use, and can be washed with a chemical liquid. The heat reflective member has a laminated structure in which quartz glass layers are formed on an upper surface and a lower surface of a siliceous sintered powder layer. The heat reflective member includes: an impermeable layer which is formed at a portion of the siliceous sintered powder layer at an end portion of the heat reflective member, which has a thickness at least larger than half of a thickness of the siliceous sintered powder layer, and through which a gas or a liquid is prevented from penetrating; and a buffer layer which is formed between the impermeable layer and the siliceous sintered powder layer, and which changes in density from the impermeable layer toward the sintered powder layer.