| abstract |
The present invention relates to a highly water-permeable hollow medical device having high water permeability for use in the treatment of chronic renal failure, excellent in the permeability of small molecular weight substances, and having a small size and high pressure durability. A yarn membrane module is provided. A dense layer on an inner surface side having a crimp with an inner diameter of 190 to 250 μm, a film thickness of 10 to 60 μm, a thickness deviation of 0.6 or more, a wavelength of 10 mm or more, and an amplitude of 0.2 mm or more. Hollow fiber membrane module having a burst pressure of 0.5 to 2.0 MPa and a water permeability of 150 to 2000 ml / m 2 / hr / mmHg . [Selection figure] None |