|Publication number||US3908665 A|
|Publication date||30 Sep 1975|
|Filing date||20 May 1974|
|Priority date||20 May 1974|
|Publication number||US 3908665 A, US 3908665A, US-A-3908665, US3908665 A, US3908665A|
|Inventors||Moses John A|
|Original Assignee||Moses John A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (5), Referenced by (76), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent Moses 1 Sept. 30, 1975  OROPHARYNGEAL FOREIGN PATENTS OR APPLICATIONS 1 1 lnvcnm John 310M111" CW 1348518 6/1964 France 123/351 Fairfield, Conn. 06430 22 Filed; May 20 1974 Primary E.\'an1i1m'Channing L. Pace Attorney. Agent or Firm-Arthur T. Fattibene 121] App]. No: 471,485
 ABSTRACT 52 us. c1 128/351 An improved oro pharyngeal airway which comprises  Int. Cl. A61M 16/00 a relatively Short Straight bite portion having an ex  Field of Search 128/208, 351 tended elongated body portion formed in the general shape of the normal pharyngeal contour wherein the  References cued outer diameter of the body portion progressively in- UNITED STATES PATENTS creases from the distal to proximate end portions 2,127,215 8/1938 Gwathmey 128/208 thereof so as to relieve any obstruction to the flow of 2.599.521 6/1952 Barnum.v 128/208 air by the base of the tongue falling back on the poste- 2,7()5,959 Elmore rior pharyngeal WZIL 3,306 298 2/1967 Raimo 123/351 3.756.244 9 1973 Kinnear Ct 111. 128/351 5 l m 10 r ing Fig r US. Patent Sept. 30,1975 Sheet 1 of2 3,908,665
U.S. Patent Sept. 30,1975 Sheet2of2 $908,665
F/G.6 F165 ORO-PHARYNGEAL AIRWAY PROBLEM AND PRIOR ART It is noted that several efforts have been made to develope a satisfactory respiratory device for insertion into the mouth and pharynx in the practice of anesthesiology and resuscitation as evidenced by the patented structures disclosed in the following noted U.S. Letters Patents: 3,756,244; 3,576,187; 3,568,680; 3,543,751; 3,398,747; 3,306,298; 2,705,959; 2,599,521; and 2,127,215. The known airways which are generally available have a curved body portion having generally uniform cross section throughout the length thereof. While such shaped pharyngeal airways are satisfactory for use on certain patients, it has been noted that in other patients the known airways will not always or completely relieve an obstruction to the flow of air. The incomplete relief of obstruction occurs primarily in those patients in which the known airway structures fail to elevate the base of the tongue sufficiently high to maintain the patency of the air passages.
OBJECTS An object of this invention is to provide an orcpharyngeal airway in which pharyngeal contour portion of the airway is formed with a progressively increasing outside diameter to more effectively elevate the base of a patients tongue to more efficiently relieve any obstructions to air flow and to more effectively maintain the patency of the air passages.
Another object is to provide an ore-pharyngeal air .way having a progressively increasing pharyngeal contour portion which can be readily cleaned.
Another object is to provide an ro-pharyngeal airway in which the external dimensions of the pharyngeal curved portion is progressively increased while the internal dead space can be maintained within optimum limits.
Another object is to provide an oro-pharyngeal air way which is readily simple in construction, relatively inexpensive to manufacture, and which is simple to use and/or clean.
BRIEF DESCRIPTION The foregoing objects and other features and advantages are attained by an ore-pharyngeal airway having a generally straight bite portion and a connected pharyngeal curved body portion wherein the body portion is formed with a cross-sectional shape which progressively increases from the distal to proximate end thereof so that in operation the enlarged proximate end portion functions to elevate the base of the tongue higher so as to relieve any obstruction more effectively. In another form of the invention the wall thickness of the pharyngeal curved portion is progressively increased so that the outer dimension progressively increases from distal to proximate end while the internal passageway is maintained generally uniform in crosssection. In another form of the invention the progressively increasing pharyngeal curved portion is formed with a C shape cross-section to permit visibility of the passageway defined to facilitate cleaning.
FEATURES A feature of this invention resides in the provision whereby the airway may be readily fabricated of any suitable material; e.g., metal, plastics, rubber and the like.
Another feature resides in the provision that the airway is specifically shaped and formed to elevate the base of the tongue and thereby relieve any obstruction to the flow of air caused by the base of the tongue falling back in the posterior pharyngeal wall.
Another feature resides in the provision whereby the airway may be readily formed in different sizes to fit men, women, children or infant.
Other features and advantages will become more readily apparent when considered in view of the drawings and specification in which:
FIG. 1 is a longitudinal section of a patients head illustrating the oro-pharyngeal airway in place.
FIG. 2 is a perspective view of an airway embodying this invention.
FIG. 3 is a sectional view of the airway of FIG. 2.
FIG. 4 is a sectional view ofa modified embodiment.
FIG. 5 is a perspective view of another modified embodiment.
FIG. 6 is a detailed sectional view taken along line 66 of FIG. 5.
FIG. 7 is a perspective view of another modified embodiment.
FIG. 8 is a sectional view taken on line 88 on FIG.
FIG. 9 is another modified construction.
FIG. 10 is a section view taken on line 10-10 on FIG. 9.
DETAILED DESCRIPTION Referring to the drawings, there is shown in FIG. 1 a longitudinal section of a patients head and neck illustrating how the oro-pharyngeal airway 20 embodying the present invention is applied. The ore-pharyngeal airway 20 as best seen in FIGS. 2 and 3 comprises a relatively short bite portion 21 which terminates in a lateral extending mouth flange 22. Connected to the other end of the bite portion 21 is an extended body portion 23 which is contourned or shaped in the form of a pharyngeal curve. In the form illustrated in FIG. 1, the bite portion 21 and extended body portion 23 is defined by an upper wall and lower wall portion 24, 25 respectively, interconnected in spaced relationship by opposed end walls 26-26. The wall portions 24,25,26-26 define a continuous air passageway 27. In accordance with this invention the upper and lower walls 24, 25 are spaced apart so that the spacing there between is progressively increased from the distal end 23A to proximate end 23B of the extended body portion 23. If desired, interconnecting or end walls 26-26 likewise may also progressively increase from distal to proximate end of the pharyngeal curved body portion 23. With this construction, the outside diameter of the extended body portion 23 progressively increases from distal 23A to proximate end 23B thereof.
With the construction described, it will be noted that the progressively increasing body portion 23, when inserted into the mouth and pharynx of a patient causes the base 28 of the patients tongue 29 to be elevated to a higher degree and thus relieve any obstruction more effectively; and maintains the patency of the pharynx passageways particularly in those patients where the base of the tongue tends to fall back on the posterior of the pharyngeal wall.
It will be understood that the airway may be made of various materials; e.g., metal, hard rubber, plastic and the like, and in varying sizes for use on men, women, children and infants.
FIG. 4 illustrates a modified embodiment. In this embodiment, the construction of the airway is identical to that described with respect to FIGS. 2 and 3, except that the wall thickness of the upper wall 31 and lower wall 32 progressively increases from the distal end or upper end portion 33A of the pharyngeal curved body portion 33 to the proximate or lower end portion 338 thereof. In this embodiment the dead air space can be reduced; i.e., upper and lower walls 31 and 32 and interconnecting or side walls 35 define a passageway 34 in which the cross-sectional area is maintained generally uniform throughout the length of the airway 30.
FIG. 5 illustrates another embodiment. In this embodiment the airway is similar to that described with respect to FIGS. 2 and 3 except that the upper and lower walls 41, 42 of the pharyngeal curved body portion 43 are maintained in spaced relationship by a single end wall 44 that extends along the length of the body portion 43 and bite portion 45. Thus as seen in FIGS. 5 and 6, the passageway 46 is defined with a C- shaped cross section in which, the extended body portion progressively increased in cross-section area from the distal to proximate end thereof. With this construction, cleaning of the airway is greatly facilitated as the interior of the passageway is rendered relatively visible.
FIG. 9 illustrates another modified embodiment of airway 50. This embodiment is similar in all respects to the embodiment of FIGS. 1 and 2 except that the bottom wall 51 is formed with a longitudinally extending slot or opening 52 which extends along the length of the bottom wall. This construction imparts a substantial C cross section to the airway.
FIGS. 7 and 8 illustrate another embodiment. The airway of FIGS. 7 and 8 comprises a straight bite portion 61 terminating in a mouth flange 62. Connected to the end of the bite portion is the extended pharyngeal curved body portion 63. In this form, the bite portion 61 and curved extended body portion 63 is defined by an upper wall 64 and a complementary bottom wall 65 spaced therefrom. In the straight bite portion, the upper and bottom walls 64 and 65 respectively are substantially parallel. However, as the upper wall and bottom walls 64 and 65 continue to form the extended body portion 63, they progressively diverge so that the spacing therebetween progressively increases toward the proximate end 66 thereof. To maintain the upper wall 64 and bottom wall 65 in spaced position, an interconnecting or dividing wall 67 is interconnected between the upper wall 64 and lower wall 65. The intermediate wall extends along the longitudinal length of the airway 60. If desired, the intermediate wall 67 may be provided with space openings not shown to place the two passageways 68 and 69 defined thereby in communication.
In operation the various airway constructions defined are similar. Each when inserted into the mouth and pharynx of a patient, due to the enlarged prximate end portions thereof will cause the base of the patients tongue to be raised to a higher degree than is otherwise possible with the known oro-pharyngeal airways, and thereby relieve any obstruction which may be occasioned in certain patients by the tongue falling back against the posterior pharyngeal wall.
From the foregoing, it will be apparent that the structure defined is relatively simple and can be readily manufactured from a number of various materials. The structure can be readily cleaned and sterilized and enables the base of the tongue to be elevated to an optimum degree.
In view of the description and drawings, it will be readily apparent to one skilled in the art that variation and modification may be made without departing from the spirit or scope of the invention.
What is claimed is:
1. An oro-pharyngeal airway for use in the practice of anesthesiology and resuscitation for insertion into a patients mouth and pharynx to relieve obstruction to the flow of air that may be occasioned by the base of the tongue falling back in the posterior pharyngeal wall comprising:
a generally straight bite portion having a transversely extending flange at one end thereof,
an extended curved body portion integrally connected to said bite portion, said curved body portion functioning to maintain the patency of a pharynx passageway; said curved body portion having a distal end portion connected to said bite portion and a terminal proximate end portion to define a unitary airway,
said body portion including spaced apart upper and lower curved walls, and an interconnecting wall for rigidly maintaining the spatial relationship between said upper and lower curved walls,
said curved body portion having a cross-sectional area which progressively increases from said distal end portion to said proximal end portion.
2. The invention as defined in claim 1 wherein said upper and lower curved walls have a thickness which progressively increases from said distal to proximal ends.
3. The invention as defined in claim 2 wherein said upper and lower curved walls and interconnecting wall defines a passageway which is substantially uniform in cross section.
4. The invention as defined in claim 1 wherein the extended body portion is C-shaped in cross-section.
5. The invention as defined in claim 1 wherein said extended body portion is H-shaped in cross section.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US2127215 *||27 Mar 1937||16 Aug 1938||Gwathmey James T||Expansible respiratory airway|
|US2599521 *||2 Jun 1949||3 Jun 1952||Berman Robert A||Respiratory device|
|US2705959 *||8 Dec 1953||12 Apr 1955||Ursula Z Janis||Oro-pharyngeal suction airway|
|US3306298 *||31 Mar 1964||28 Feb 1967||Raimo Victor H||Airway|
|US3756244 *||10 Jun 1971||4 Sep 1973||Hudson Oxygen Therapy Sales Co||Breathing aid|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US4054135 *||15 Dec 1976||18 Oct 1977||Berman Robert A||Intubating pharyngeal airway|
|US4067331 *||23 Jul 1976||10 Jan 1978||Berman Robert A||Intubating pharyngeal airway|
|US4068658 *||15 Mar 1977||17 Jan 1978||Berman Robert A||Intubating pharyngeal airway|
|US4069820 *||15 Mar 1977||24 Jan 1978||Berman Robert A||Intubating pharyngeal airway|
|US4166467 *||8 Aug 1977||4 Sep 1979||Metatech Corporation||Bite block for endotracheal tube|
|US4198970 *||11 Sep 1978||22 Apr 1980||Raymond Luomanen||Airway for drainage of the nasopharynx|
|US4231364 *||30 Apr 1979||4 Nov 1980||Speshyock Fred R||Respiratory control|
|US4338930 *||8 Sep 1980||13 Jul 1982||Tudor Williams R||Airway intubator|
|US4553540 *||16 Aug 1983||19 Nov 1985||Straith Richard E||Airway|
|US5038766 *||8 Nov 1989||13 Aug 1991||Parker Jeffrey D||Blind orolaryngeal and oroesophageal guiding and aiming device|
|US5147298 *||3 Apr 1991||15 Sep 1992||National Research Development Corporation||Feeding apparatus|
|US5174283 *||7 May 1992||29 Dec 1992||Parker Jeffrey D||Blind orolaryngeal and oroesophageal guiding and aiming device|
|US5339805 *||23 Dec 1992||23 Aug 1994||Parker Jeffrey D||Blind orolaryngeal and oroesophageal guiding and aiming device|
|US5355874 *||21 Nov 1991||18 Oct 1994||Volker Bertram||Oropharyngeal device|
|US5743254 *||31 Mar 1997||28 Apr 1998||Parker Medical Limited Partnership||Orotracheal intubation guide|
|US6144867 *||3 Sep 1999||7 Nov 2000||The United States Of America As Represented By The Secretary Of The Army||Self-piercing pulse oximeter sensor assembly|
|US6196224||30 Sep 1998||6 Mar 2001||David D. Alfery||Perilaryngeal oral airway|
|US6253098||3 Sep 1999||26 Jun 2001||The United States Of America As Represented By The Secretary Of The Army||Disposable pulse oximeter assembly and protective cover therefor|
|US6256524||3 Sep 1999||3 Jul 2001||The United States Of America As Represented By The Secretary Of The Army||Pulse oximeter sensor combined with a combination oropharyngeal airway and bite block|
|US6263223||3 Sep 1999||17 Jul 2001||The United States Of America As Represented By The Secretary Of The Army||Method for monitoring arterial oxygen saturation|
|US6266547||3 Sep 1999||24 Jul 2001||The United States Of America As Represented By The Secretary Of The Army||Nasopharyngeal airway with reflectance pulse oximeter sensor|
|US6386199||29 Sep 1999||14 May 2002||David D. Alfery||Perilaryngeal oral airway|
|US6470200||12 Feb 2001||22 Oct 2002||The United States Of America As Represented By The Secretary Of The Army||Pacifier pulse oximeter sensor|
|US6474332 *||1 Oct 1998||5 Nov 2002||Wisconsin Medical Incorporated||Bite block|
|US6533761||31 May 2001||18 Mar 2003||The United States Of America As Represented By The Secretary Of The Army||Catheter securing device and bite block|
|US6672305||26 Feb 2001||6 Jan 2004||Parker Medical Limited Partnership||Shallow throat orotracheal intubation guide|
|US6729325||14 May 2002||4 May 2004||David D. Alfery||Perilaryngeal oral airway|
|US6755191||22 Feb 2001||29 Jun 2004||The United States Of America As Represented By The Secretary Of The Army||Securing device for an endotracheal tube|
|US6890322||29 Jun 2001||10 May 2005||The United States Of America As Represented By The Secretary Of The Army||Catheter securing device|
|US6981502 *||1 Apr 2004||3 Jan 2006||Numask, Inc.||Respiratory mask having intraoral mouthpiece with large sealing area and multiple sealing configuration|
|US6983744||5 Apr 2004||10 Jan 2006||Alfery David D||Perilaryngeal oral airway with temperature sensor|
|US7013899||13 Aug 2004||21 Mar 2006||Engineered Medical System, Inc.||Perilaryngeal oral airway with multi-lumen esophogeal-obturator|
|US7040312||16 May 2002||9 May 2006||Engineered Medical Systems, Inc.||Perilaryngeal oral airway with flexible tip guide|
|US7278420 *||19 Sep 2003||9 Oct 2007||Thomas Jefferson University||Oropharyngeal airway|
|US7866313||22 Jun 2007||11 Jan 2011||Isen Innovations, Llc||Oral airways that facilitate tracheal intubation|
|US7866314||29 Dec 2007||11 Jan 2011||Isen Innovations, Llc||Method of tracheal intubation|
|US7913687||23 Oct 2006||29 Mar 2011||Munn Myron L||Oral airway|
|US7946289||23 Oct 2006||24 May 2011||Munn Myron L||Oral airway|
|US7954488 *||17 Jul 2007||7 Jun 2011||Munn Myron L||Oral airway|
|US7975689 *||2 Jun 2006||12 Jul 2011||Russ Hauge||Apparatus for maintaining a surgical airway and method of the same|
|US7975695||31 Jan 2008||12 Jul 2011||Myron Munn||Oral airway|
|US8413658 *||2 Jun 2008||9 Apr 2013||Andrea R. Williams||Oral airway for endoscopic and intubating procedures|
|US8443797 *||18 Dec 2007||21 May 2013||Russ Hauge||Apparatus for maintaining a surgical airway and method of the same|
|US8640692||26 Jan 2010||4 Feb 2014||Adrian A. Matioc||Oropharyngeal device for assisting oral ventilation of a patient|
|US20020095119 *||29 Jun 2001||18 Jul 2002||Bertoch Todd M.||Catheter securing device|
|US20040129272 *||19 Sep 2003||8 Jul 2004||Thomas Jefferson University||Oropharyngeal airway|
|US20040182384 *||5 Apr 2004||23 Sep 2004||Alfery David D.||Perilaryngeal oral airway with temperature sensor|
|US20040231675 *||20 May 2003||25 Nov 2004||Lyons James R.||Method and apparatus for transnasal ventilation|
|US20050217678 *||1 Apr 2004||6 Oct 2005||Mccormick James J||Respiratory mask having intraoral mouthpiece with large sealing area and multiple sealing configuration|
|US20060032505 *||13 Aug 2004||16 Feb 2006||Engineered Medical Systems, Inc.||Perilaryngeal oral airway with multi-lumen esophogeal-obturator|
|US20060081241 *||15 Sep 2004||20 Apr 2006||Quinn George E||Small disposable medical device|
|US20060272647 *||2 Jun 2006||7 Dec 2006||Russ Hauge||Apparatus for maintaining a surgical airway and method of the same|
|US20080000481 *||10 Jul 2007||3 Jan 2008||Arjunan Ganesh||Oropharyngeal Airway|
|US20080092882 *||23 Oct 2006||24 Apr 2008||Munn Myron L||Oral airway|
|US20080092900 *||17 Jul 2007||24 Apr 2008||Munn Myron L||Oral airway|
|US20080121229 *||31 Jan 2008||29 May 2008||Myron Munn||Oral airway|
|US20080156322 *||22 Jun 2007||3 Jul 2008||Amy Isenberg||Oral airways that facilitate tracheal intubation|
|US20080156324 *||29 Dec 2007||3 Jul 2008||Isen Innovations, Llc||Scented and flavored oral airways|
|US20080156331 *||29 Dec 2007||3 Jul 2008||Isen Innovations, Llc||Method of tracheal intubation|
|US20080185004 *||23 Oct 2006||7 Aug 2008||Munn Myron L||Oral airway|
|US20090013995 *||2 Jun 2008||15 Jan 2009||Williams Andrea R||Oral airway for endoscopic and intubating procedures|
|US20090064998 *||10 Sep 2007||12 Mar 2009||Bassili Hosni R||Breathing Tube Bite Inhibitor|
|US20090101140 *||16 Apr 2008||23 Apr 2009||Patrick John Miller||Airway devices and methods of making and using the same|
|US20100065062 *||17 Sep 2009||18 Mar 2010||Wolfe Tory Medical, Inc.||Temporary pharyngeal airway|
|US20100101567 *||18 Dec 2007||29 Apr 2010||Russ Hauge||Apparatus for maintaining a surgical airway and method of the same|
|US20100199998 *||26 Jan 2010||12 Aug 2010||Matioc Adrian A||Oropharyngeal Device for Assisting Oral Ventilation of a Patient|
|US20110226239 *||22 Sep 2011||Russ Hauge||Apparatus for maintaining a surgical airway and method of the same|
|USRE39508 *||23 Aug 1996||13 Mar 2007||Parker Medical||Blind orolaryngeal and oroesophageal guiding and aiming device|
|DE4037084A1 *||22 Nov 1990||27 May 1992||Volker Bertram||Oropharyngeal-tubus|
|EP0030014A1 *||27 Nov 1980||10 Jun 1981||Michael S. Upsher||A combination of a laryngoscope and a flexible tube|
|WO1980000538A1 *||11 Sep 1979||3 Apr 1980||R Luomanen||Airway for drainage of the nasopharynx|
|WO2000018461A1||29 Sep 1999||6 Apr 2000||David D Alfery||Perilaryngeal oral airway|
|WO2004064704A2 *||20 Jan 2004||5 Aug 2004||Ernest Halberg||Accessory for an inhaler|
|WO2004103165A2 *||20 May 2004||2 Dec 2004||Lyons James R||Method and apparatus for transnasal ventilation|
|WO2006032007A2 *||15 Sep 2005||23 Mar 2006||Quinn George E||Small disposable medical device|
|WO2008122679A1 *||10 Apr 2007||16 Oct 2008||Ajl S A||Fibroscopic intubation cannula|
|International Classification||A61B1/267, A61M16/04|
|Cooperative Classification||A61B1/267, A61M16/0488, A61M2016/0495, A61M2016/0493|
|European Classification||A61M16/04M, A61B1/267|