Hollow fiber Hemodayzer

Hollow Fiber Hemodialyzer – Description

A Hollow Fiber Hemodialyzer (commonly called a dialyzer) is a biomedical filtration device used in hemodialysis to remove waste products, excess fluids, and toxins from the blood of patients with renal failure. It acts as an artificial kidney, enabling diffusion and ultrafiltration across a semi-permeable membrane.

Structure and Components

A hollow fiber dialyzer is typically a cylindrical cartridge made of biocompatible materials and consists of:

1. Outer Shell (Housing):

   • Made from transparent polycarbonate or similar medical-grade plastic.

   • Protects and encloses the internal fiber bundle.

   • Contains blood and dialysate ports at both ends.

2. Hollow Fiber Bundle (Membrane):

   • Thousands of microscopic hollow fibers (capillary-like tubes) are tightly packed inside.

   • Each fiber acts as a semi-permeable membrane—allowing selective exchange of molecules.

   • Total fiber length can range from 1.5 to 2 meters per fiber, with an effective surface area of 1.0–2.5 m²