Surgery – Respiratory method or device – Respiratory gas supply means enters nasal passage
Reexamination Certificate
2002-03-14
2004-10-19
Bennett, Henry (Department: 3743)
Surgery
Respiratory method or device
Respiratory gas supply means enters nasal passage
C128S203220
Reexamination Certificate
active
06805126
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a an oxygen delivery and gas sensing nasal cannula system and more particularly pertains to safely and conveniently providing oxygenation and gas analysis.
2. Description of the Prior Art
The use of known methods and apparatuses is known in the prior art. More specifically, known methods and apparatuses previously devised and utilized for the purpose of providing oxygenation and analyzing gases are known to consist basically of familiar, expected, and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which has been developed for the fulfillment of countless objectives and requirements.
By way of example, U.S. Pat. No. 5,682,881 to Winthrop et al issued Nov. 4, 1997 discloses a CPAP cannula and securement apparatus. U.S. Pat. No. 5,099,836 to Rowland et al, issued Mar. 31, 1992 discloses an intermittent oxygen delivery system and cannula. U.S. Pat. No. 4,989,599 to Carter issued Feb. 5, 1991 discloses a dual lumen cannula. U.S. Pat. No. 5,335,656 to Bowe et al issued Aug. 9, 1994 discloses a providing a treating gas and sampling the exhaled gas. Lastly, U.S. Pat. No. 4,648,398 to Agdanowski et al issued Mar. 10, 1987 discloses a nasal cannula.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not describe an oxygen delivery and gas sensing nasal cannula system that allows safely and conveniently providing oxygenation and gas analysis.
In this respect, the an oxygen delivery and gas sensing nasal cannula system according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of safely and conveniently providing oxygenation and gas analysis.
Therefore, it can be appreciated that there exists a continuing need for a new and improved an oxygen delivery and gas sensing nasal cannula system which can be used for safely and conveniently providing oxygenation and gas analysis. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of known methods and apparatuses now present in the prior art, the present invention provides an improved an oxygen delivery and gas sensing nasal cannula system. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved oxygen delivery and gas sensing nasal cannula system and method which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention essentially comprises an oxygen delivery and gas sensing nasal cannula system for safely and conveniently providing oxygenation and gas analysis when in use. The system comprises, in combination, several components. First provided is a pair of nasal prongs. These are fabricated of a flexible elastomeric material and have a hollow round cylindrical shape. There is an internal surface and an external surface to the prongs with a wall thickness there between. Each of the nasal prongs has an inboard end and an outboard end with the outboard end being toward a user. Next provided is a main prong assembly. The assembly has a hollow round cylindrical shape with two ends. It is fabricated of a flexible elastomeric material. The assembly has an internal surface and an external surface with a wall thickness there between. The cylindrical wall of the assembly has a taper at each end, with a round body of the main prong assembly being there between. There are a pair of apertures located in the approximately midway position of the main prong assembly. The apertures are sized to firmly receive the nasal prongs. Next provided is an adhesive coupling means to secure the nasal prongs to the main prong assembly. Next provided is a pair of smaller oxygen conduit tubes. The tubes are fabricated of a flexible elastomeric material and have a round, hollow cylindrical shape. The tubes have an internal surface and an external surface with a wall thickness there between. Each of the smaller oxygen conduit tubes has an outboard end and an inboard end. The outboard end of the conduit tubes are sized to be receivably fit into, and held securely in place within, the internal diameter of the tapered end of the main prong assembly. Next provided is a main oxygen delivery tube. It is fabricated of a flexible elastomeric material and has a round, hollow cylindrical shape. The delivery tube has an internal surface and an external surface with a wall thickness there between. It also has an outboard end and an inboard end with a length there between. The main tube is sized to receive and retain the inboard ends of the pair of conduit tubes within the internal diameter of the outboard end of the main tube. Next provided is an adhesive coupling means to secure the conduit tubes within the outboard end internal diameter of the main tube. Next provided is an adjustment sleeve. The sleeve has a round hollow cylindrical configuration. It is fabricated of an elastomeric material and has an internal surface and an external surface with a wall thickness there between. The sleeve has an internal diameter sufficient to allow the adjustment sleeve to be slid with a minimal resistance along the external diameter of the main oxygen tube on to the pair of conduit tubes. The sleeve functions to tighten the cannula in place on the patient, when in use. Next provided is a flared end piece. The end piece is fabricated of an elastomeric material. It has a tapered, hollow cylindrical shape. It has an internal surface and an external surface with a wall thickness there between. The flared end piece also has an inboard end and an outboard end. The outboard end has an internal diameter sized to securely receive the external diameter of the inboard end of the main oxygen delivery tube. The inboard end is sized to have an internal diameter of between about 5 and 7 millimeters. Next provided is a gas machine adapter. The adapter is fabricated of a rigid material. It has an oxygen line portion and a gas machine portion. The oxygen line portion has a generally tapered hollow round cylindrical configuration. It has an inboard end and an outboard end. The taper of the oxygen line portion of the gas machine adapter decreases from inboard to outboard. The adapter has an internal surface and an external surface and a wall thickness there between. The internal surface is smooth and the external surface of the oxygen line portion has a series of concentric steps along the axis of the taper of the oxygen line portion. The inboard end of the oxygen line portion joins, and is coupled to, the gas machine portion. The gas machine portion of the gas machine adapter has a generally round, hollow, cylindrical shape. It has an external surface and an internal surface with a wall thickness there between. The gas machine portion has an inboard end and an outboard end. The internal diameter of the inboard gas machine portion of the adapter is between about 7 and 12 millimeters. The gas machine portion of the adapter has a knurled surface on the outboard end of the gas machine portion. The knurled surface acts to facilitate the gripping of the gas machine portion. Next provided is a gas machine with a gas machine outlet having a round hollow cylindrical configuration. The outlet has an internal surface and an external surface. The outlet has an internal diameter of between about 10 and 20 millimeters. Next provided is a gas sampling conduit. The conduit is fabricated of a flexible elastomeric material and has a generally round, hollow, cylindrical configuration. The conduit has an outside diameter of between about 1 and 4 millimeters. The conduit has an internal surface and an external surface and a wall thickness of between. The thickness of the wall is between about 1 and 3 millimeters. The conduit has an inboard end and a
Bennett Henry
Patel Mital
LandOfFree
Oxygen delivery and gas sensing nasal cannula system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Oxygen delivery and gas sensing nasal cannula system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oxygen delivery and gas sensing nasal cannula system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3290287