Non-invasive method for optimizing the respiration of atelectatic lungs

US6612995B2 · kind B2 · utility

Inventors

• Steffen Leonhardt · Wulfen, DE
• Stephan Bohm · Oederan, DE

Key dates

• Filing date: Jul 26, 2001
• Grant date: Sep 2, 2003
• Expiry date: Jul 26, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2230/432
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to a method and an apparatus to identify alveolar opening and collapse of a lung. To automatically generate the settings of ventilator parameters in a simple and gentle way, the hemoglobin oxygen saturation and/or the endtidal CO2 concentration and/or the CO2 output are-measured and processed to detect alveolar opening and closing. From the knowledge of the corresponding airway pressures, a central processing unit may generate the settings of ventilation parameters such that gas exchange is maximal while the mechanical stress of the lung tissue is minimal.