1
Stephen D Flynn: Valve for breathing device. O Two Systems International, George A Rolston, November 18, 1986: US04622964 (161 worldwide citation)

A breathing valve having a valve chamber connectable to a gas supply and to a breathing device, a gas flow opening for exit of exhaled gases through which atmospheric air may be inducted into the chamber, a valve member in the chamber, a one-way flow opening in the valve member through which gas may ...


2
Kevin D J Bowden: Flow control valve for manual resuscitator devices. O Two Systems International, Kusner & Jaffe, September 21, 2004: US06792947 (40 worldwide citation)

An improved manual resuscitation device such as a bag-valve-mask (BVM) device with flow control valve to eliminate the danger of patient distension and aspiration of stomach contents during ventilation. The BVM having the usual patient mask with a gas inlet and flexible patient face sealing edge, fl ...


3
Kevin D J Bowden: Ventilation training analyzer manikin. O Two Systems International, Mark Kusner, October 2, 2001: US06296490 (37 worldwide citation)

A ventilation training analyzer manikin, for providing a quantitative measurement of the relative proportions of breathable gas volume delivered to a patient's lungs and patient's stomach during ventilation attempts by a user, thus demonstrating that the user is or is not using proper vent ...


4
Kevin D J Bowden, Tian X Zhao: Tracheo-esophageal tube and ventilator for pneumatic cardiopulmonary resuscitation. O Two Systems International, Mark Kusner, Michael A Jaffe, April 23, 2002: US06374827 (37 worldwide citation)

The invention relates to a device for and method of cardio-pulmonary resuscitation (CPR) involving cardiac compression of a patient's heart through expansion of the esophagus with an orally inserted balloon. Traditional CPR applies external pressure to the patient's sternum in an attempt t ...


5
Ronald A Laswick, Kevin D J Bowden: Low input pressure alarm for gas input. O Two Systems International, Parkhurst & Wendell L, May 23, 2000: US06067022 (24 worldwide citation)

The invention provides an in-line low supply pressure alarm device powered solely by supply flow of pressurized gas from a gas supply for providing an alarm signal when supply gas pressure is below a selected minimum pressure. The alarm device includes a manifold having an input port for communicati ...


6
Ronald A Laswick, Kevin D J Bowden, Helmut Zauner, Tian X Zhao, Tarek A F Arafat: Automatic transport ventilator with monitoring alarms. O Two Systems International, Parkhurst & Wendel L, May 2, 2000: US06055981 (23 worldwide citation)

An automatic resuscitation device for administering a breathable gas under pressure to a patient by an operator where all operating controls and alarms are powered by the pressurized gas in a manual override mode, a patient breathing deemed override mode, and an automatic mode. The device uses no po ...


7
Kevin D J Bowden: Neonatal patient ventilator circuit. O Two Systems International, Mark Kusner, Michael A Jaffe, February 11, 2003: US06516800 (12 worldwide citation)

A disposable neonatal patient ventilator circuit for an automatic ventilator. All components that are exposed to contamination from the patient are packaged together in a disposable unit external to the automatic ventilator. The automatic ventilator has a receptacle with a pressurized breathable gas ...


8
Ronald A Laswick, Kevin D J Bowden: Automatic resuscitator. O Two Systems International, May 28, 1996: US05520170 (8 worldwide citation)

An automatic resuscitation apparatus for administering a breathable gas to a patient that can be held in one hand, and containing the necessary valves and controls, and operable in automatic mode, demand mode, and manual mode, and having, a flow chamber for a breathable gas, a patient mask connector ...


9
Kevin D J Bowden: Syringe and multi-dose inhaler adapter for a ventilator. O Two Systems International, Paul J Field, April 24, 2007: US07207329 (8 worldwide citation)

An adapter for disposition in a breathing system circuit between a source of breathable gas and a patient airway circuit, the adapter having: a tube with a side wall defining a breathing passage between a tube inlet and a tube outlet; an injector conduit extending laterally through the tube side wal ...


10
Kevin D J Bowden, Helmut F Zauner: Low supply pressure alarm for gas supply. O Two Systems International, Mark Kusner, April 3, 2001: US06209579 (7 worldwide citation)

The invention provides an in-line low supply pressure alarm device preferably housed together with a gas pressure regulator and a gas flow controller, thereby eliminating the need for the operator to monitor gas availability. The alarm device is designed to be inserted in-line and includes a hollow ...