Abstract: An easy-assembly bed includes a top plate, and a leg portion having a plurality of leg members that are linked using notched joints. The top plate is constituted of a bonded material, which includes a plate-shaped foam plate formed with a foam body, and a front board member and a rear board member having an identical shape to the foam plate and that are bonded to the rear surface and the front surface of the foam plate, respectively, and a top plate molded resin portion overing the cut ends of the bonded material with a molded resin; and the leg members are each constituted of a grooved bonded material, which includes a plate-shaped grooved foam plate having locking grooves and formed with a foam body, and a grooved front board member and a grooved rear board member on the front surface and the rear surface of the grooved foam plate.

Abstract: This invention relates to a hollow fiber membrane module to be used in industrial fields such as the semiconductor industry, food processing industry, pharmaceutical industry, and medical industry, and to a method for the production thereof. Permselective hollow fiber membranes having rigidity are cheese-wound in a plurality of layers, thereby forming a hollow fiber membrane bundle. One terminal part of this hollow fiber membrane bundle together with a case is adhered and solidified with a thermally molten mass of thermoplastic resin, thereby forming a solidified part. This solidified part is cut to form a sealed part serving to open terminal parts of the hollow fiber membranes.

Abstract: A filter element includes a bundle of hollow fibers made of first polyolefin. The bundle has at least one end sealed with second polyolefin having an average molecular weight in the range of 1,000 to 16,000. The filter element is produced by a method including the steps of fusing the second polyolefin having a fusion point lower than that of the first polyolefin, attaching the fused second polyolefin to at least one end of the bundle, allowing the attached second polyolefin to set, thereby providing the bundle with a sealed portion, and cutting off the leading end of the sealed portion.

Abstract: A filter element includes a bundle of hollow fibers made of first polyolefin. The bundle has at least one end sealed with second polyolefin having an average molecular weight in the range of 1,000 to 16,000. The filter element is produced by a method including the steps of fusing the second polyolefin having a fusion point lower than that of the first polyolefin, attaching the fused second polyolefin to at least one end of the bundle, allowing the attached second polyolefin to set, thereby providing the bundle with a sealed portion, and cutting off the leading end of the sealed portion.

Abstract: A filter element includes unit members and spacers interposed one each between adjacent ones of the unit members. Each unit member includes a supporting plate having a pair of planar porous membranes joined to the opposite surfaces thereof and also having an opening for insertion of a spacer and removal of a cleaned fluid. The opening has an inner peripheral surface and a stepped part. Each spacer having an outer peripheral part and a stepped part. The stepped part of the opening of one unit member and the outer peripheral part of one spacer define a first axial seal part therebetween, and the inner peripheral surface of the opening of another unit member and the stepped part of the one spacer define a second axial seal part therebetween. The unit members and spacers are interconnected by tightly joining the supporting plates and the spacers at the first and second axial seal parts.

Abstract: In a blood reservoir comprising a hollow housing and filtration/defoaming and blood collecting sections therein; the blood collecting section is located below and separated from the filtration/defoaming section receiving bubbled blood and has a sufficient capacity, typically 500 to 2,500 ml, to keep blood collected therein out of contact with the filtration/defoaming section; guide means in the form of a cone-shaped deflector is disposed between the filtration/defoaming section and the base of the housing to lead along its inner surface defoamed blood from the filtration/defoaming section to the collecting section without dripping.

Abstract: An artificial lung has an axially extending housing which accommodates a bundle of hollow fibers retained within the housing by a pair of walls provided at the ends of the housing. The housing has blood inlet and outlet ports defining a blood chamber within the housing. Oxygen gas is passed through the hollow fibers and blood is passed through the blood chamber so that a gas exchange may take place through the hollow fiber walls. The artificial lung is provided with a blood reservoir chamber integral with the blood chamber and capable of being communicated with the blood chamber, so that blood which has undergone a gas exchange inside the chamber may be stored within the reservoir. A heat exchanger is disposed at a point preceding, following or intermediate the blood chamber and blood reservoir chamber, which construct a blood circuit.

Abstract: An artificial lung has an axially extending housing which accommodates a bundle of hollow fibers retained within the housing by a pair of walls provided at the ends of the housing. The housing has blood inlet and outlet ports defining a blood chamber within the housing. Oxygen gas is passed through the hollow fibers and blood is passed through the blood chamber so that a gas exchange may take place through the hollow fiber walls. The artificial lung is provided with a blood reservoir chamber integral with the blood chamber and capable of being communicated with the blood chamber, so that blood which has undergone a gas exchange inside the chamber may be stored within the reservoir. A heat exchanger is disposed at a point preceding, following or intermediate the blood chamber and blood reservoir chamber, which construct a blood circuit.