Airway for pharyngeal cavity

Abstract

Abstract An airway for the pharyngeal cavity, which does not need to be inserted into the trachea (T) and can be easily inserted into the hypopharynx cavity (P) from the oral cavity (O) to airtightly seal an area extending from the hypopharynx to the esophagus (E) and an area around the laryngeal opening (AL), thereby enabling a pressurized artificial respiration while ensuring the respiratory tract. The airway comprises a tube (1) for the respiratory tract having a closed end thereof obtusely rounded and an opening (2) for ventilation at a side surface thereof, and a balloon (3) joined to a peripheral edge of the opening (2) for ventilation and an outer peripheral surface near portions in front and rear thereof and surrounding an outer peripheral surface near the end of the tube for the respiratory tract and is adapted to expand. The tube for the respiratory tract is provided in its tube wall with a slit (4) which is opened at its end into the balloon to serve as a gas passage and is connected at its rear end to a thin tube (5) which is provided with a connector (7).

Inventors

• 👤 Toru Sato
• 👤 Minoru Shibata
• 👤 Shiro Akita Agehama

Bibliographic Details