Membrane type oxygenator

Abstract

Abstract PURPOSE:To obtain an oxygenator having blood flow capable of sufficiently developing the capacity (gas exchange capacity) of a hollow fiber membrane by winding hollow fiber in a state opened at specific sharpness with respect to the flow direction of blood to form a hollow fiber layer. CONSTITUTION:A hollow fiber layer 6 is fixed at both end parts of inner and outer cylinders 3, 5 by an adhesive and the opening surfaces 11, 11 of the hollow fiber layer 6 are provided to both end surfaces of the fixed parts 10, 10' thereof. The hollow fiber sharpness theta of an oxygenator is pref. set to a range from 100 deg. to below 130 deg.. Blood is introduced into an oxygenator 2 from a blood inlet 1 to enter an inner cylinder 3 and flows in the hollow fiber layer 6 packed between the inner and outer cylinders 3, 5 from a blood inflow port 4. The blood inflow port 4 is uniformly opened to the circumference of the upper part of the inner cylinder 3 and blood smoothly flows in the hollow fiber layer 6 to be brought into contact with the oxygen-containing gas in hollow fibers through the pores formed to the hollow fiber during the flow through the hollow fiber layer 6 to be subjected to gas exchange and oxygen is supplied to said blood while carbon dioxide is reduced.

Inventors

• 👤 Yasushi Shimomura
• 👤 下村　泰志
• 👤 Masahiko Yamaguchi
• 👤 正彦 山口
• 👤 Keiichi Koyama
• 👤 小山　敬市
• 👤 Akio Funakubo
• 👤 昭夫 舟久保

Bibliographic Details