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Ramses Nashed: Breathing circuit disconnect warning system and method for using a disconnect system. Edward P Dutkiewicz, February 8, 2005: US06851427 (25 worldwide citation)

A breathing circuit disconnect warning system comprising an endotracheal tube, a breathing circuit supply tube with a pair of spaced electrically conductive strips, and a coupling tube. The coupling tube has an output end with a normally open switch including a first electrically conductive element ...


2
Ramses Nashed: Gas delivery, evacuation and respiratory monitoring system and method. Edward P Dutkiewicz, October 3, 2006: US07114498 (9 worldwide citation)

A gas delivery, evacuation and respiratory monitoring system comprises a face mask having an inflow flapper valve and a fresh-gas inflow tube and an exhaust-gas outflow tube and a gas sampling tube, a fresh gas source and an exhaust-gas scavenging system, a fresh gas supply tube operative coupling t ...


3
Ramses Nashed: Disposable anesthesia face mask. Ronald E Smith, Smith & Hopen P A, December 25, 2012: US08336549 (6 worldwide citation)

A disposable anesthesia face mask comprising a shell member having an annular flange and a do-nut shaped pneumatic sealing cushion attached to the shell member annular flange. The shell member and its flange are “pear-shaped” defining a nasal portion of first transverse extent, a mouth portion of se ...


4
Ramses Nashed: Breathing circuit disconnect warning system and method for using a disconnect system. Edward P Dutkiewicz, April 5, 2005: US06874502 (6 worldwide citation)

A gas circuit has an outlet and an inlet. Circuit adapters are provided. An anesthesia breathing circuit has tubular breathing circuit hoses, a Y connector and a connecting elbow. The breathing circuit has an electronically conductive system of wires and contacts to form two unconnected parallel ele ...


5
Ramses Nashed: Gas delivery, evacuation and respiratory monitoring system and method. Edward P Dutkiewicz, February 28, 2006: US07004163 (5 worldwide citation)

A carbon-dioxide sampling tube operatively couples a capnograph and an exhaust-gas sampling tube of a mask. The mask has an ambient-to-inside-the mask inflow flapper valve located on a wall of the mask, a fresh-gas inflow tube, an exhaust-gas outflow tube, and a gas sampling tube. A fresh gas inflow ...


6
Ramses Nashed: Respiratory face mask and headstrap assembly. Ronald E Smith, Smith & Hopen P A, September 9, 2014: US08826909 (1 worldwide citation)

A respiratory face mask is provided suitably sized and configured to engage the nose portion, mouth portion and chin portion of a patient's face. The face mask is characterized by a cup-like shell or receptacle member defining a peripheral flange and a flexible inflatable hollow sealing cushion on t ...


7
Ramses Nashed: Demand anesthetic gas delivery system with disposable breathing and scavenging circuit. Ronald E Smith, Smith & Hopen P A, May 20, 2014: US08726900 (1 worldwide citation)

A demand valve is fixedly and rigidly mounted on an anesthetic gas mixer stand in close proximity to the gas mixer. A single-patient-use disposable breathing and scavenging circuit is adapted to be removably connected to the demand valve output for permitting a patient to breath gas, or a mixture ga ...


8
Ramses Nashed: Respiratory face mask and breathing circuit assembly. Ronald E Smith, Smith & Hopen P A, September 9, 2014: US08826905 (1 worldwide citation)

A disposable breathing circuit is adapted to be connected between a disposable face mask and a vacuum source for delivering fresh gas to the face mask and for scavenging waste gas exhaled from the face mask. The breathing circuit includes a fresh gas supply tube, a flexible flow-through exhalation b ...


9
Ramses Nashed: Vacuum attachment and breathing circuit apparatus. Ronald E Smith, Smith & Hopen P A, October 8, 2013: US08550076 (1 worldwide citation)

An ambient or room air vacuum attachment or nozzle is provided proximal to the connection between a breathing circuit and the protruding inlet port of a respiratory face mask, and a tubular passageway is sealingly connected between the vacuum attachment or nozzle and a source of vacuum. By virtue of ...


10
Ramses Nashed: Demand gas flow valve apparatus. Sedation Systems, Nilay J Choksi, Smith & Hopen P A, October 2, 2018: US10086166

A gas flow valve assembly. The assembly includes a cylindrical housing and a resiliently-biased valve supported substantially centrally within the housing. In the default or “off” condition, the resilient bias causes the valve to be seated on a valve seat shutting off axial flow of gas through the v ...