As the core component connecting oxygen supply equipment and patients, medical oxygen tubes play a crucial role in ensuring stable and safe oxygen delivery during respiratory support therapy. Their performance and quality directly affect the effectiveness of oxygen therapy and patient safety, serving as a fundamental guarantee for oxygen therapy implementation in medical institutions at all levels.
The design of oxygen tubes adheres to the principles of "low resistance, airtightness, and adaptability." The main body is mostly made of medical-grade polymer materials, such as polyvinyl chloride (PVC) or thermoplastic elastomer (TPE), combining flexibility and biocompatibility. It can bend appropriately with changes in patient position without breaking, reducing airflow resistance and mucosal irritation. Structurally, they are divided into single-lumen and multi-lumen types: single-lumen tubes are suitable for low-flow routine oxygen therapy, with a simple structure and controllable cost; multi-lumen tubes integrate humidification or monitoring functions to meet the needs of complex scenarios such as intensive care. The tube diameter is set according to the flow rate range; low flow rates use narrow-diameter tubes (2-3 mm inner diameter) to avoid nasal compression, while high flow rates use wide-diameter tubes to reduce resistance and ensure stable airflow.
In clinical applications, oxygen tubing covers a wide range of scenarios. In long-term oxygen therapy for chronic diseases such as COPD, its stable low-flow delivery maintains a safe blood oxygenation threshold; during the perioperative period, it provides respiratory support during anesthesia recovery or postoperative analgesia, reducing the burden of repeated repositioning; in emergency and critical care, its rapid insertion capability (within 30 seconds) buys valuable time for resuscitation. In pediatrics and geriatrics, where patients have sensitive nasal passages, softer TPE materials are required to reduce the risk of mucosal damage.
Proper use is a prerequisite for maximizing the effectiveness of oxygen tubing. The oxygen flow rate should be adjusted according to the patient's age and condition-2–4 L/min for adults and 0.5–2 L/min for children-to avoid high-flow shocks that can dry out the mucosa; for long-term use, a humidification device should be used to prevent secretions from crusting; regular checks of tubing patency and tightness are necessary, and condensation should be removed promptly to reduce the risk of infection.
As the "transmission artery" of the oxygen therapy system, oxygen tubing, with its non-invasive, convenient, and safe characteristics, serves as a crucial link between the device and the patient. With advancements in materials and processes, its lightweight and intelligent features will continue to improve, providing more reliable support for precision oxygen therapy.