Development of a multifunctional detoxifying unit for liver failure patients

Area of Science:

• Biomedical Engineering
• Hepatology
• Artificial Organ Development

Background:

• Liver failure necessitates extracorporeal blood detoxification due to organ donor shortages.
• Current artificial liver devices are complex and costly, utilizing multistage adsorption and hemodialysis.
• There is a need for simpler, more cost-effective liver support systems.

Purpose of the Study:

• To develop a simplified strategy for liver dialysis.
• To create a multifunctional filter for simultaneous plasma separation and perfusion.
• To evaluate the efficacy and safety of the new liver support unit.

Main Methods:

• A novel multifunctional filter was designed and developed.
• The filter unit enabled plasma separation and perfusion in a single device.
• Bovine blood containing uremic and hepatic toxins was used to test the liver dialysis unit.

Main Results:

• Successful liver dialysis treatments were performed using the devised unit.
• Significant reduction ratios were achieved: 78% for urea, 98% for creatinine, and 91% for bilirubin.
• Plasma free hemoglobin levels were maintained, and blood cell counts remained stable during 5-hour treatments.

Conclusions:

• The developed liver support unit provides a straightforward and efficient method for blood detoxification.
• This technology shows promise for patients suffering from hepatic failure.
• The multifunctional filter simplifies the process of artificial liver support.