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Haemodialyzer apparatus

  • US 4,212,744 A
  • Filed: 06/14/1978
  • Issued: 07/15/1980
  • Est. Priority Date: 06/21/1977
  • Status: Expired due to Term
First Claim
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1. In a haemodialyzer comprising a housing having an inlet and an outlet for blood and an inlet and an outlet for dialyzate, a plurality of membranes positioned in said housing and fixation block means for holding said membranes at their end portions, in a liquid tight connection, in relation to said housing wherein separate liquid passages for said blood and said dialyzate are formed by said plurality of membranes that are separately communicated with said inlet and outlet for blood and with said inlet and outlet for dialyzate, the improvement wherein said membranes comprise a first plurality of semi-permeable dialyzing membrane means substantially incapable of passing blood plasma proteins therethrough, said dialyzing membrane means contacting all components of said blood on one side thereof and contacting said dialyzate on the other side thereof, and a second plurality of filter membrane means for passing blood plasma proteins and for not passing blood corpuscles therethrough, wherein said dialyzing membrane means and said filter membrane means are held in said fixation block means.

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