Abstract: Provided is a thin, narrow tube for use in a biodegradable medical device formed from a round tube made of a magnesium material as the base material, in which a desired outer diameter and an inner diameter are provided with good precision over the entire region in a longitudinal direction and a circumferential direction, and the length of biodegradation time can be controlled without changing a material composition. The thin, narrow tube is a thin, narrow tube of a biodegradable medical device, in which the thin, narrow tube is a round tube made of crystals containing magnesium (Mg) having a hexagonal crystal structure, and when the crystals forming the round tube are viewed in a round tube axis direction of the round tube, a hexagonal basal plane (0001) is oriented at a predetermined inclination angle with respect to a circumferential direction perpendicular to a radial direction (a direction from an inner surface to an outer surface) of the round tube.

Abstract: Provided are an alloy member which is usable in organisms, makes use of features of bio-affinity and biodegradability of magnesium, and is able to realize required duration of biodegradability, and a production method therefor. According to the present invention, the alloy member usable in organisms includes a base body that contains a magnesium alloy, a first protective layer that contains an oxide derived from a component of the base body or a complex of an oxide and a hydroxide derived from a component of the base body, and a second protective layer that contains a hydroxide derived from a component of the base body.

Abstract: Provided is a thin, narrow tube for use in a biodegradable medical device formed from a round tube made of a magnesium material as the base material, in which a desired outer diameter and an inner diameter are provided with good precision over the entire region in a longitudinal direction and a circumferential direction, and the length of biodegradation time can be controlled without changing a material composition. The thin, narrow tube is a thin, narrow tube of a biodegradable medical device, in which the thin, narrow tube is a round tube made of crystals containing magnesium (Mg) having a hexagonal crystal structure, and when the crystals forming the round tube are viewed in a round tube axis direction of the round tube, a hexagonal basal plane (0001) is oriented at a predetermined inclination angle with respect to a circumferential direction perpendicular to a radial direction (a direction from an inner surface to an outer surface) of the round tube.

Abstract: Provided is a thin, narrow tube for use in a biodegradable medical device formed from a round tube made of a magnesium material as the base material, in which a desired outer diameter and an inner diameter are provided with good precision over the entire region in a longitudinal direction and a circumferential direction, and the length of biodegradation time can be controlled without changing a material composition. The thin, narrow tube is a thin, narrow tube of a biodegradable medical device, in which the thin, narrow tube is a round tube made of crystals containing magnesium (Mg) having a hexagonal crystal structure, and when the crystals forming the round tube are viewed in a round tube axis direction of the round tube, a hexagonal basal plane (0001) is oriented at a predetermined inclination angle with respect to a circumferential direction perpendicular to a radial direction (a direction from an inner surface to an outer surface) of the round tube.

Abstract: Provided are an alloy member which is usable in organisms, makes use of features of bio-affinity and biodegradability of magnesium, and is able to realize required duration of biodegradability, and a production method therefor. According to the present invention, the alloy member usable in organisms includes a base body that contains a magnesium alloy, a first protective layer that contains an oxide derived from a component of the base body or a complex of an oxide and a hydroxide derived from a component of the base body, and a second protective layer that contains a hydroxide derived from a component of the base body.

Abstract: Provided is a thin, narrow tube for use in a biodegradable medical device formed from a round tube made of a magnesium material as the base material, in which a desired outer diameter and an inner diameter are provided with good precision over the entire region in a longitudinal direction and a circumferential direction, and the length of biodegradation time can be controlled without changing a material composition. The thin, narrow tube is a thin, narrow tube of a biodegradable medical device, in which the thin, narrow tube is a round tube made of crystals containing magnesium (Mg) having a hexagonal crystal structure, and when the crystals forming the round tube are viewed in a round tube axis direction of the round tube, a hexagonal basal plane (0001) is oriented at a predetermined inclination angle with respect to a circumferential direction perpendicular to a radial direction (a direction from an inner surface to an outer surface) of the round tube.

Abstract: A novel method is disclosed for the preparation of a sintered porous body of a metallic or ceramic powder having a closed cell texture and a porosity as high as 95% or higher. The method comprises the steps of: preparing a foamable aqueous slurried composition containing a powder of the metallic or ceramic material, a blowing agent and a binder resin which is a water-soluble polymer capable of becoming gelled; subjecting the slurried composition to gelation of the binder resin; subjecting the gelled mass of the composition to foaming by gas-evolution from the blowing agent; and heating the thus gelled and foamed body of the composition to effect drying and sintering of the particles of the metallic or ceramic powder.

Abstract: A novel method is disclosed for the preparation of a sintered porous body of a metallic or ceramic powder having a closed cell texture and a porosity as high as 95% or higher. The method comprises the steps of: preparing a foamable aqueous slurried composition containing a powder of the metallic or ceramic material, a blowing agent and a binder resin which is a water-soluble polymer capable of becoming gelled; subjecting the slurried composition to gelation of the binder resin; subjecting the gelled mass of the composition to foaming by gas-evolution from the blowing agent; and heating the thus gelled and foamed body of the composition to effect drying and sintering of the particles of the metallic or ceramic powder.

Abstract: A method enabling to form a lubricating layer on a work piece and a device to form the same in a simple blast processing are provided, in which injection materials can be injected at higher speed than the conventional way, thereby even a small specific gravity injection materials such as graphite and the like can be used for blast operation. In an injection nozzle of a direct pressure type blast processing device which injects a mixture of injection materials and compressed gas, an aperture which is formed in an axial direction of the injection nozzle has such shape that meets the following conditional equations (1) and (2) in a cross section orthogonal to the axial direction at an arbitrary distance x away from the entrance of the injection nozzle.

Abstract: A mounting structure for mounting an air conditioning unit to a vehicle body and an method of mounting the unit are provided. The structure includes an instrument panel, a steering member and brackets. In assembling, the air conditioning unit and a heater control unit are fixed to the steering member through the brackets, at first. After control cables of the heater control unit has been connected to the air conditioning unit, the instrument panel is assembled to a vehicle body while allowing the heater control unit through the opening of the instrument panel. Therefore, it is possible for a worker to carry out both assembling of the air conditioning unit and the heater control unit and electrical connecting of the control cables in a free space without being restricted in terms of operative directions and posture, so that the workability can be improved remarkably.