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Hemodialysis I: Introduction

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...

Hemodialysis II: Procedure and Complications

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...

Dialysis

Dialysis

Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...

Dialysis

Dialysis

Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...

Hemodialysis III: Nursing Management

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...

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Updated: Jun 7, 2026

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

Published on: July 20, 2022

Hemodialysis machine technology: a global overview.

Hans-Dietrich Polaschegg¹

¹Medical Devices Consultant, Malerweg 12, A-9231 Koestenberg, Austria. hdp@aon.at

Expert Review of Medical Devices

|November 6, 2010

Summary

This review examines hemodialysis machines, including established and emerging products for home use. It questions the medical value of high-tech innovations versus simpler, more frequent dialysis treatments.

Area of Science:

Nephrology
Medical Device Technology
Biomedical Engineering

Background:

The hemodialysis market encompasses established and emerging manufacturers.
Current hemodialysis machines feature diverse functionalities.
Home hemodialysis represents a growing area of development.

Purpose of the Study:

To describe the current market and products for hemodialysis machines.
To outline new developments, particularly for home hemodialysis.
To critically review the medical utility of advanced hemodialysis technologies.

Main Methods:

Literature review of publications.
Analysis of patent applications.
Critical assessment of technological advancements.

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Last Updated: Jun 7, 2026

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

Published on: July 20, 2022

Main Results:

Established companies offer a range of hemodialysis machines.
Chinese manufacturers are entering the market.
Innovations in home hemodialysis are emerging.
High-tech features are being developed for hemodialysis devices.

Conclusions:

The medical benefit of complex, high-tech hemodialysis machines requires critical evaluation.
More frequent or longer dialysis sessions with simpler machines may offer comparable or superior clinical outcomes.
Future developments should balance technological sophistication with patient benefit and treatment efficacy.