Modern Standards for Medical Gas Pipeline Systems Design: From DBN to ISO

Designing engineering networks in medical facilities is a complex, multi-stage process where every technical parameter directly impacts patient safety. In the context of healthcare modernization, transitioning from outdated approaches to modern international protocols is critically important.

Regulatory Framework: DBN and ISO

The primary document in Ukraine is DBN V.2.2-10:2022. It regulates the architectural specifics of hospitals, but regarding gases, engineers increasingly rely on ISO 7396-1. This standard sets strict requirements for compressed medical gases, vacuum, and Anaesthetic Gas Scavenging Systems (AGSS).

Three-Level Supply Safety System

According to European standards, the system must include:

1. Primary Source: For example, an oxygen concentrator (Oxy-Gold station) or a cryogenic gasifier.

2. Secondary Source: A redundant line or manifolds that activate automatically during maintenance of the primary source.

3. Reserve (Emergency) Source: A cylinder installation designed for autonomous operation of ICU departments (typically 24-48 hours).

Installation and Materials

Special attention is paid to pipelines. Only medical-grade copper is used, with marking confirming the absence of oils on the inner surface. Brazing is performed under a "nitrogen cushion" (nitrogen purging during welding) to prevent oxide scale, which could damage ventilator valves.

Quality Control and Monitoring

The final stage involves testing the system for tightness and gas purity. Modern systems include digital monitoring panels that transmit real-time pressure data to the nurse station and the engineering department. This ensures that no failure goes unnoticed.