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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,...

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...

Dialysis

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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).
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Dialysis

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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...

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Related Experiment Video

Updated: Jul 3, 2026

An Open-Source Normothermic Perfusion System Designed for Research Scientists

An Open-Source Normothermic Perfusion System Designed for Research Scientists

Published on: July 18, 2025

The ideal home hemodialysis machine.

Carl M Kjellstrand¹, Per Kjellstrand

¹Loyola University Chicago, Chicago, Illinois, USA. ckjellstrand@gmail.com

Hemodialysis International. International Symposium on Home Hemodialysis

|July 22, 2008

Summary

Daily home hemodialysis offers superior survival rates. The ideal home hemodialysis machine concept enables daily treatments, automates preparation and cleanup, and enhances patient interaction for improved outcomes.

Area of Science:

Nephrology
Biomedical Engineering

Background:

Daily home hemodialysis (HD) is associated with superior survival rates compared to conventional in-center HD or peritoneal dialysis.
Current hemodialysis machines are not optimized for home use, limiting patient accessibility and treatment frequency.

Purpose of the Study:

To present a conceptual design for an ideal home hemodialysis machine.
To outline features that would enable daily short and long HD treatments at home.

Main Methods:

Conceptualization of a home HD machine integrating dialyzer and blood tubing for reduced replacement frequency.
Design specifications include automated fluid preparation, patient-controlled intravenous infusion, and elimination of systemic anticoagulation.
Incorporation of patient-interactive and educational functionalities during dialysis sessions.

Related Experiment Videos

Last Updated: Jul 3, 2026

An Open-Source Normothermic Perfusion System Designed for Research Scientists

An Open-Source Normothermic Perfusion System Designed for Research Scientists

Published on: July 18, 2025

Main Results:

The proposed machine concept facilitates daily hemodiafiltration (at least 200 L/week).
Integrated components and beyond-ultrapure fluid systems minimize contamination and enhance safety.
Automated processes and patient interaction features aim to simplify home HD management.

Conclusions:

The conceptual ideal home HD machine addresses current limitations, promoting more frequent and effective dialysis.
This design has the potential to significantly improve patient outcomes and quality of life for individuals requiring renal replacement therapy.