Hemodialysis machine with one-touch volume replacement and one-touch hemodialysis completion

Takahiro Shinzato, Shigeru Nakai, Masamiki Miwa, Ichiro Takai, Kenji Maeda

Research output: Contribution to journalArticlepeer-review


In order to encourage the spread of home hemodialysis, we have developed a hemodialysis machine that enables "one-touch" volume replacement and "one-touch" hemodialysis completion, by modifying a viscous pump-type hemodialysis machine. When emergency volume replacement is needed, pressing the volume replacement button will serve to transfer 200ml of dialysate to the blood side as a replacement fluid, at 100ml/min within the dialyzer. Pressing the completion procedure button when the hemodialysis is over causes 420ml of the dialysate to be transferred to the blood side, at 100ml/min within the dialyzer, so that the blood within the dialyzer and the blood tubing is replaced by the thus-transferred dialysate. The two puncture needles on the arterial and venous sides are then removed, and the hemodialysis completion procedure is finished. In a trial, the new hemodialysis machine, together with a cellulose triacetate membrane artificial kidney, was used a total of 144 times over a period of 4 months in three outpatients receiving maintenance hemodialysis. With the machine, 32 emergency volume replacements were performed. Both the hemodialysis completion and the emergency volume replacement procedure were performed uneventfully.

Original languageEnglish
Pages (from-to)183-187
Number of pages5
JournalJournal of Artificial Organs
Issue number3
Publication statusPublished - 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering
  • Cardiology and Cardiovascular Medicine


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