Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate
2011-08-16
2011-08-16
Yu, Justine (Department: 3771)
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
C128S204180, C128S200240, C128S206290, C128S206210, C128S207180
Reexamination Certificate
active
07997271
ABSTRACT:
This disclosure is of a mask-free device for supplying sufficient gas to a medical patient and for more accurately sampling the exhalation gas of the patient. The device includes a flexible body having lumens adapted to extend into the nares of a patient and adjacent the patient's mouth for collecting and transmitting a sampling of the patient's end tidal exhalation to a gas analyzer to analyze one or more component gases in that exhalation. The disclosure also discloses the transmittal of pressure from the nares of the patient to a pressure transducer for determining the respiratory phase of the patient and for controlling the volume of oxygen delivered to the patient. The body of the mask-free unit further includes conduits for delivering oxygen through diffuser orifices to positions adjacent the patient's nares and mouth. Finally, a controller is interconnected between the pressure transducer and the gas supply for increasing the delivery of gas during the inhalation phase of the patient's respiration and for decreasing said delivery upon the exhalation phase for the purpose of avoiding dilution of the exhalation sample.
REFERENCES:
patent: 5046491 (1991-09-01), Derrick
patent: 5099836 (1992-03-01), Rowland et al.
patent: 5400781 (1995-03-01), Davenport
patent: 5474060 (1995-12-01), Evans
patent: 5735268 (1998-04-01), Chua et al.
patent: 5800361 (1998-09-01), Rayburn
patent: 5865174 (1999-02-01), Kloeppel
patent: 5873361 (1999-02-01), Hakala
patent: 6155986 (2000-12-01), Brydon et al.
patent: 6371114 (2002-04-01), Schmidt et al.
patent: 6422240 (2002-07-01), Levitsky et al.
patent: 6439234 (2002-08-01), Curti et al.
patent: 6532958 (2003-03-01), Buan et al.
patent: 6938619 (2005-09-01), Hickle
patent: 7152604 (2006-12-01), Hickle et al.
Hickle Randall S
Lampotang Samsun
Baker Dorsey L.
Dixon Annette
Scott Laboratories, Inc
Yu Justine
LandOfFree
Apparatus and method for mask free delivery of an inspired... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for mask free delivery of an inspired..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for mask free delivery of an inspired... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2689398