| 摘要 |
A mass transfer device of the type used, e.g., for blood dialysis is made by winding on a mandrel (20) a series of fiber strands (24), each of which consists of a solid fiber (26) and one or more hollow fibers (22), the solid fiber being at least as large, and preferably substantially larger, in diameter than the hollow fiber. As the strands are wound on the mandrel they are temporarily anchored at spaced locations along the mandrel by beads of a liquid pre-potting compound which eventually harden into solid anchor plates (32). When the winding is complete, the mandrel is cut at each anchor plate to form individual temporary cartridges which can withstand the handling required in washing and drying. After each individual cartridge is final-potted, the anchor plates (32) are discarded, and the final potting is cut in a conventional manner to form manifold surfaces at each end of the cartridge. A deburring treatment is then applied to the manifold surface at each end of the cartridge to smooth out any microscopic irregularities of the manifold surface which can cause thrombogenesis. |
