Types of Dialysis Machines – A Comprehensive 2025 Guide

What Is a Dialysis Machine?
A dialysis machine is a medical device that performs artificial blood filtration for patients with kidney failure. It replaces the natural function of kidneys by removing toxins, excess fluids, and waste products from the bloodstream.

 

Main Types of Dialysis Machines

Type	Description	Typical Use
Hemodialysis (HD)	Filters blood through a dialyzer connected to a vascular access	Hospitals & clinics
Peritoneal Dialysis (PD)	Uses the patient’s peritoneum as a filter, with dialysate infused into the abdomen	Home-based therapy
Continuous Renal Replacement Therapy (CRRT)	Designed for ICU patients; runs continuously to gently filter blood	Critical care (ICU)
Home Hemodialysis Machines	Portable versions designed for self-use under medical supervision	Patients at home
Wearable Artificial Kidneys (in development)	Experimental, wearable dialysis technologies	Future outpatient use

Key Differences
Hemodialysis requires external machinery and is typically done 3–4 times per week.

Peritoneal dialysis can be continuous or automated (via a cycler), allowing more freedom at home.

CRRT machines operate 24/7 in ICU and have advanced software to manage fluid balances in unstable patients.