Experience with the clinical use of the upgraded ACH-Σ software program and the new CHDF-FS circuit

Abstract

The new CHDF-FS^® circuit (Asahi Kasei Medical Co.) and its upgraded software program have been used for continuous hemodiafiltration (CHDF) with ACH-Σ^® (Asahi Kasei Medical Co.). The new circuits have a compact design, integrated infusion and anticoagulant lines, a needless port and altered position for anticoagulant administration. A hemofilter washing system and mechanism for adjusting the volume of sound according to the mode and pressure settings have been added to the upgraded software program. After using the CHDF-FS^® as well as the upgraded ACH-Σ^® software, we felt that adequate consideration had been given to improving the overall safety and usefulness of the device. However, a better way of avoiding the unanticipated rapid injection of drugs due to changing the position during anticoagulant administration needs to be developed.