Endotracheal tube for a high-frequency respirator

US4646733A · kind A · utility

Assignee

• Firma Carl Freudenberg · DE

Inventors

• Norbert Stroh · Magstadt, DE
• Paul P. Lunkenheimer · Munster, DE

Key dates

• Filing date: Sep 30, 1985
• Grant date: Mar 3, 1987
• Expiry date: Sep 30, 2005

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M16/0096
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An apparatus for the high-frequency artificial respiration of living animals or human beings has a flexible endotracheal tube for introduction into the trachea thereof. The flexible endotracheal tube has an outlet end, a valve at the outlet end and control and air supplies along the endotracheal tube to the valve. The control operates the valve to produce steep-flanked respiratory-air pulses. The valve can serve simultaneously for removing used air through a conventional endotracheal tube as a sleeve about the other endotracheal tube.