Title:
中空糸膜型人工肺および処理方法
Document Type and Number:
Japanese Patent JP4046146
Kind Code:
B1
Abstract:
[Object] To provide an oxygenator of a hollow fiber membrane type wherein permeability and exchange ability of oxygen and carbon dioxide gas are excellent, elution into the blood is small, strength is excellent, blood coagulation and plasma leakage are low. [Constitution] An oxygenator of a hollow fiber membrane type where a plurality of hollow fiber membranes are received in a housing, characterized in that at least a part of the regions of contact with the blood of the hollow fiber membrane is coated with a water-insoluble (meth)acrylate copolymer in which a hydrophobic (meth)acrylate is copolymerized with a hydrophilic (meth)acrylate at a molar ratio of (50 to 90) : (50 to 10) (hereinabove, the term "water-insoluble" means that, when 1% by weight of the (meth)acrylate copolymer is allowed to stand for 30 days in 99% by weight (to said copolymer) of a physiological saline solution of 37°C, a weight reduction ratio of said copolymer is not more than 1% by weight).
Inventors:
Yuta Kawakatsu
Hidenori Tanaka
Kashiwara Susumu
Hidenori Tanaka
Kashiwara Susumu
Application Number:
JP2007113480A
Publication Date:
February 13, 2008
Filing Date:
April 23, 2007
Export Citation:
Assignee:
TOYO BOSEKI KABUSHIKI KAISHA
International Classes:
A61M1/18
Domestic Patent References:
| JP2004298223A | ||||
| JP2006142035A | ||||
| JP2003111836A | ||||
| JP2006299045A | ||||
| JP1168703A | ||||
| JP3741320B2 | ||||
| JP2006077136A |
Attorney, Agent or Firm:
Norio Kakizawa