Abstract: A copper alloy trolley wire is formed of a composition containing Mg in a range of 0.15% by mass or more and 0.50% by mass or less, Cr in a range of 0.25% by mass or more and 1.0% by mass or less, and a Cu balance containing inevitable impurities, in which a tensile strength is 600 MPa or higher and an electrical conductivity is 60% IACS or higher.

Abstract: A copper alloy material having a composition contains, Mg in a range of 0.15 mass % or more and 0.50 mass % or less, Cr in a range of 0.20 mass % or more and 0.90 mass % or less, and a balance consisting of Cu and inevitable impurities. Tensile strength is 600 MPa or more, and elongation is 3% or more. Electric conductivity is preferably 60% TACS or more.

Abstract: An artificial lung is provided that includes a plurality of porous hollow fiber membranes for gas exchange comprising a hydrophobic polymer material, wherein the hollow fiber membranes have inner surfaces forming lumens and outer surfaces, and wherein at least one of the inner surfaces or the outer surfaces is coated with a polymer-containing solution that has a surface tension of 40 to 55 dyn/cm and that contains a solvent and a polymer having a structural unit represented by Formula (I): wherein in Formula (I), R3 represents a hydrogen atom or a methyl group, R1 represents an alkylene group having 1 to 4 carbon atoms, and R2 represents an alkyl group having 1 to 4 carbon atoms.

Abstract: An artificial lung is provided that includes a plurality of porous hollow fiber membranes for gas exchange comprising a hydrophobic polymer material, wherein the hollow fiber membranes have inner surfaces forming lumens and outer surfaces, and wherein at least one of the inner surfaces or the outer surfaces is coated with a polymer-containing solution that has a surface tension of 40 to 55 dyn/cm and that contains a solvent and a polymer having a structural unit represented by Formula (I): wherein in Formula (I), R3 represents a hydrogen atom or a methyl group, R1 represents an alkylene group having 1 to 4 carbon atoms, and R2 represents an alkyl group having 1 to 4 carbon atoms.

Abstract: This copper alloy wire consists of a precipitation strengthening type copper alloy containing Co, P, and Sn, wherein an average grain size of precipitates observed through cross-sectional structure observation immediately after performing an intermediate aging heat treatment is equal to or less than 15 nm and a number of precipitates having grain sizes of equal to or less than 5 nm is 10% or higher of a total number of observed precipitates, and the copper alloy wire is subjected to cold working and a final aging heat treatment after the intermediate aging heat treatment.

Abstract: A copper alloy trolley wire includes: 0.12 mass % to 0.40 mass % of Co; 0.040 mass % to 0.16 mass % of P; 0.005 mass % to 0.70 mass % of Sn; and the balance including Cu and unavoidable impurities, wherein precipitates have an average grain size of equal to or greater than 10 nm, and the number of precipitates having a grain size of equal to or greater than 5 nm is 90% or greater of the total number of observed precipitates, and a heat resistance HR defined by HR=TS1/TS0×100 in which TS0 is an initial tensile strength and TS1 is a tensile strength after holding the copper alloy trolley wire at 400° C. for 2 hours, is equal to or greater than 90%.

Abstract: A copper alloy wire of the present invention consists of a precipitation strengthening type copper alloy containing Co, P, and Sn, wherein an average grain size of precipitates observed through cross-sectional structure observation immediately after performing an aging heat treatment is equal to or greater than 15 nm and a number of precipitates having grain sizes of equal to or greater than 5 nm is 80% or higher of a total number of observed precipitates, and the copper alloy wire is subjected to cold working after the aging heat treatment.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: A material of an interconnector for a solar battery used as an interconnector for a solar battery which connects cells with each other in a solar battery module, in which at least one of Zr and Mg is contained in a range of 3 ppm or more and 20 ppm or less, O is contained at 5 ppm or less in parts per million by mass, the balance consisting of Cu and inevitable impurities, and the residual resistance ratio is 300 or more. Further, an interconnector for a solar battery (32) connects between cells (31) with each other in a solar battery module (30), and the interconnector for a solar battery is made of the above-described material of the interconnector for a solar battery, and which is a rectangular wire having a rectangular cross section, in which a lead-free solder coated layer is formed on at least one of the principal faces extending in a direction at which the rectangular wire extends.

Abstract: A liquid collection bag is used as a part of an extracorporeal circuit and is connected via a tube to a storage container containing a priming solution. The collection container collects the priming solution from the storage container by a pressure differential between the pressure inside the collection container and the pressure inside the storage container. The liquid collection container is a flexible bag body having a partition part dividing the inside of the bag body into a first space and a second space. In addition, a communication part communicates the first space with the second space.

Abstract: An oxygenator unit includes a venous reservoir, a centrifugal pump, an oxygenator, a connection part for connecting the reservoir and the pump, a connection part for connecting the pump and the oxygenator, and a unit frame. The unit frame includes a reservoir receiving part, a pump receiving part provided at the position under a blood outlet of the venous reservoir disposed at the reservoir receiving part, and an oxygenator receiving part provided at the position in the vicinity of the blood outlet of the centrifugal pump disposed on the pump receiving part. The reservoir is disposed at the reservoir receiving part, the pump is disposed at the pump receiving part; and the oxygenator is disposed at the oxygenator receiving part, and they are held by the unit frame, resulting in a unit.

Abstract: A method and apparatus for manufacturing copper and/or copper alloy ingots having no shrinkage cavities and having smooth surfaces without wrinkles are provided. The apparatus comprises a bottom-casting type melting furnace and a heating furnace for heating a mold in which the molten metal is cast. The method comprises the steps of melting the material of copper and/or copper alloy, and casting the molten copper and/or molten copper alloy into a cylindrical mold which is placed on a cooled pedestal provided at the bottom of the heating furnace and the side wall of which is heated by the heating furnace so as to form a temperature gradient increasing from the bottom to the top of the mold.

Abstract: A method and apparatus for manufacturing copper and/or copper alloy ingots having no shrinkage cavities and having smooth surfaces without wrinkles are provided. The apparatus comprises a bottom-casting type melting furnace and a heating furnace for heating a mold in which the molten metal is cast. The method comprises the steps of melting the material of copper and/or copper alloy, and casting the molten copper and/or molten copper alloy into a cylindrical mold which is placed on a cooled pedestal provided at the bottom of the heating furnace and the side wall of which is heated by the heating furnace so as to form a temperature gradient increasing from the bottom to the top of the mold.

Abstract: Copper oxide is added to molten copper to produce an extra-low-oxygen copper having an oxygen concentration of at most 0.5 ppm. In some embodiments, the copper oxide is added as a powder introduced into the melt with a blowing gas. In other embodiments, the molten copper is in contact with graphite during deoxidation and the addition of copper oxide.