Weifang Zhuohui Trading Co., Ltd.

End-tidal CO₂ Sampling Tube

Disposable End-tidal CO₂ Sampling Tube

Product Introduction2. Nasal Oxygen Cannula with End-tidal CO₂ Sampling FunctionEnd-tidal carbon dioxide (EtCO₂) monitoring is a non-invasive technique widely adopted for anesthesia monitoring. Featuring high sensitivity, it assesses ventilation status as well as circulatory function and pulmonary blood flow, and has become a routine and effective monitoring method in anesthesia practice.Clinically, EtCO₂ monitoring is applied for the safe operation of anesthesia machines and ventilators, and for cases including various respiratory insufficiency, cardiopulmonary resuscitation, severe shock, heart failure and pulmonary embolism. It also helps verify the placement of endotracheal tubes during general anesthesia. Regarded as the sixth vital sign alongside body temperature, respiration, pulse, blood pressure and arterial oxygen saturation.For painless examinations and minor surgeries, non-intubated general anesthesia is commonly used. Traditional masks and oxygen cannulas only deliver oxygen without CO₂ monitoring. When anesthetics cause respiratory depression or airway obstruction leading to impaired ventilation, abnormal conditions cannot be detected in a timely manner. As the gold standard for ventilation monitoring, EtCO₂ monitoring should be routinely applied under such anesthesia to prevent severe complications.Clinical Value of End-tidal CO₂ Monitoring

1. For patients undergoing extubation during general anesthesia recovery, especially critically ill patients, children and the elderly, EtCO₂ monitoring reduces the incidence of respiratory failure and re-intubation rate.
2. For patients under intravenous combined anesthesia, EtCO₂ monitoring detects hypoventilation, airway obstruction and respiratory depression earlier than blood oxygen saturation, so as to lower anesthesia risks and adverse reactions.

Clinical Evidence for End-tidal CO₂ MonitoringNumerous overseas clinical studies prove that standardized EtCO₂ monitoring reduces anesthesia risks and medical costs, improves patient safety and minimizes medical disputes.

• "EtCO₂ monitoring is mandatory for patients under moderate or deeper sedation (unconscious and unresponsive to verbal stimuli)." — 2018 Guidelines by ASA and European Society of Anaesthesiology
• "Continuous end-tidal CO₂ monitoring is required throughout general anesthesia." — National Anesthesia Quality Control Requirements
• "EtCO₂ monitoring must be performed during painless gastrointestinal endoscopy." — Guidelines from Anesthesia Collaborative Group of American Society for Gastrointestinal Endoscopy
• "End-tidal CO₂ monitoring is recommended during painless gastrointestinal endoscopy." — Expert Consensus of Chinese Society of Digestive Endoscopy (Compliance with Anesthesia Quality Control Standards)