| Theme |
Monitoring Technologies in Dialysis Therapy |
| Title |
Safety monitoring systems for hemo-dialysis |
| Author |
Yuji Ono |
Dialysis Unit, Takadanobaba Shinryojo / clinical engineer |
| Author |
Takashi Shibamoto |
Department of Blood Purification, Tokyo Medical and Dental University / clinical engineer |
| [ Summary ] |
Development of dialysis machines' monitoring systems began with an automated dialysate supply system for dialysate concentrates of sodium acetate. Dialysate concentrations are monitored and controlled by sensing the conductivity of the solute with electrodes, which may be come contaminated or changed by the dialysate itself. Sodium or bicarbonate specific ion sensitive electrodes should be introduced in the near future for careful control of dialysate contents. Though transluminacence monitoring of blood lines has been used in air bubble detectors, the deference in sound impedance between air bubbles and blood can be detected in modern dialysis machines, achieving increased sensitivity to micro bubbles for electrical function monitoing. Bloodleek monitors also detect the increased adsorbance of dialysate. Light passage could be restricted by us age of protein perme able dialyzers. They could be easily wiped or washed. Safety monitoring systems along with dialysis machines might be the technology of the future for dialysis, which could lead to increased safety in dialysis therapy. |