Abstract
Some contrivances are made on hollow fiber type dialyzer in an attempt to increace dialysis performance.
Of these, gadgets in a dialysate compartmente such as construction of baffle(s)or a long dialysate channel are evidenced to present a dangerous problem under particular workingcondition. Flow resistance is higer in a dialysate compartment than in a blood compartment. As a result, ultrafiltration directs from a dialysate compartment to ward a blood compartment.
If there are any broken fibers, nonsterile dialysate directly flows into blood.