Packaged blood purification device
AssigneeNipro Corporation
InventorsToshiaki Masuda, Yuki Hatakeyama, Takashi Sunohara
Life of this patent
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Abstract
A packaged blood purification device including a hollow fiber blood-processing device having a bundle of hollow fibers and a cylindrical container holding the bundle of hollow fibers; and a gas-impermeable container for packaging the hollow fiber blood-processing device. The hollow fiber blood-processing device is sealed together with an oxygen absorber in the gas-impermeable container, and is sterilized with radiation. The blood-processing device is produced by a method including the steps of sealing a hollow fiber blood-processing device in said gas-impermeable container together with an oxygen absorber, and radiation sterilizing the blood-processing device held in the sealed gas-impermeable container.
Claims13
A packaged blood purification device comprising:
- a hollow fiber blood-processing device including a bundle of hollow fibers and a cylindrical container holding said bundle of hollow fibers;
- a water-releasing oxygen absorber;
- and
- a gas impermeable container,
- wherein said hollow fiber blood-processing device and the water-releasing oxygen absorber are packaged and sealed within the gas impermeable container, and
- within the gas impermeable container, only a substantially oxygen-free gas separates the cylindrical container of the hollow fiber blood-processing device from the water-releasing oxygen absorber, such that the cylindrical container of the hollow fiber blood-processing device and the water-releasing oxygen absorber are directly exposed to each other through the substantially oxygen-free gas,
- wherein each of said gas impermeable container, said hollow fiber blood-processing device, and said water-releasing oxygen absorber has been subjected to sterilization,
- wherein the cylindrical container includes a single inlet port projecting and opening sideways adjacent to one end of the cylindrical container, and a single outlet port projecting and opening sideways from at an opposite end of the cylindrical container,
- wherein the cylindrical container has an outer circumferential wall which directly faces inner walls of gas impermeable container,
- wherein said hollow fibers include an amount hydrophilic polymer in a range of 3% to 20% by weight.
Dependencies are inferred from the claim text.