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Publication numberUS1270565 A
Publication typeGrant
Publication dateJun 25, 1918
Filing dateOct 17, 1914
Priority dateOct 17, 1914
Publication numberUS 1270565 A, US 1270565A, US-A-1270565, US1270565 A, US1270565A
InventorsCharles K Teter
Original AssigneeTeter Mfg Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pharyngeal inhaler.
US 1270565 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)



Patented June 25, 1918'.

drawings wherein:



To all whom it may concern:

Be it known that 1, CHARLES K. T TER, a .citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Pharyngeal Inhalers, of which the following is a specification.

My invention relates to improvements in pharyngeal inhalers, and has for its object the provision of simple and eflicient inhaling apparatus for conveniently continuing the anesthesia of a patient indefinitely, with- "out the loss or dilution of the anesthetizing reagents, while insuring the normal breathing functions of said patient. i

One of the most common difficulties experienced during continued anesthesia is the closing of the patients throat, by reason of the tongue sliding back and thereby restricting or checking thev breathing. Furthermore, it is found that the ordinary facial or nasal inhaler is likely to permit the leakage of air, as well as the escape and loss of gas,

which are conditions thatshould be care fully avoided duringcontinued anesthesia.

Accordingly, I have provided an appli ance which is, adapted to be substituted for the ordinary inhaler, as soon as the patient is under the influence of the anesthetic,fand

said appliance serves positively to holdthe tongue in position, maintain normal breathing conditionsunder a definite pressure of gas, and prevent the escape orwaste of the anesthetic. To this end, I have provided a curved and flattened pharyngeal tube terminating in suitably positioned openings to prevent their obstruction in the patients throat. Associated with said tubethere is provided a positive pressure valve adapted to insure. a definite gaseouspressure, a contiguous gas-bag or reservoir, an interior or labial shield for the patients mouth, and an exterior apron adapted to. be strapped tightly about the patients mouth and serve to hold the device in proper position, during anesthesia. The details and further functions of the appliance may best be explained by making reference to the accompanying Figure l is a view of th appliance side Specification of Letters Patent. Pgflbmmbed June 25, 191,

Application filed October 17, 1914. Serial No. 867,103.

ing apparatus, andmore particularly one adapted for administering nitrous oxid and oxygen, such as shown in Letters Patent No.

883,987, April 7th, 1908. This constitutes an anesthetizing gas pressure supply line,with' which my inhaler is used. It is unnecessary to describe such apparatus, but I may state that the gas-bag a terminates-a supply tube through which the anesthetizing gases are adapted to be admitted by suitable controlling Valves. This gas bag or reservoir (1 is attached at the extremity'of the anesthetiz- ,ing-gas pressure supply line, and ordinarily is positioned in close proximity to the patient, preferably. resting upon the forehead, so that there need be no fluctuation in the flow of gases through the supply line, and

the breathing of the patient will not affect the definite pressure insured by the positive pressure valve through which the exhalations of the patient are directed. lfhis valve is provided with a graduated stem 72 whereefiecting the corresponding compression of a weak spring 0. The valve part 0 and spring are of such light weight as to be operated by the breathing of the patient, yet the spring is capable ofsufficient tension to insure a positive gas pressure of the anesthetic withinthe lungs of the patient.

In order to increase the absorption by the blood of the anesthetizing gases, or vapors, suchas ether, the positive pressure valve serves to insure a constant adjustable, gaseous pressure within the respiratory organs of the patient,suificient to prevent anyj'col- Jon the adjustable collar and set screw 6 may be secured in any desired position for lapse of the lungs, Ordinarily such gas pressure ranges between two and twentyi'our millimeters, whereby actual distension of the lungs may beefiected,

ac d tether Tr n eet n. Z is. the pharyngeal tube e," which is terminally flat tened as best shown in Fig. 2 and is adapted to beiinserted through the mouth of the pa-. tient, as soon asanesthesia hasbeen induced. This tube 6 serves to fit beneath, and hold the tongue 6" in position, while a terminalboss 6' upon the tube, preferably formed of lead, is provided with openings upon three sides and the bottom, in order to prevent any obstruction of the patients breathing. This ead b es erve t preven ac rations of the mouth, ongue and" ph ryn whi h i iigh 'be c us d yt ieshatp e ge h tu e. r a

Addi ional bosse or nla gem n s, f of, also' j lea-d or a' e 'at ii' y' oft31 33 are o wardly positioned upon the tube 6 and are respec i e y adap ed f he at c m nt of the, 'ep tu ate, bial, inn Shi d 9, Whi

the raaa'vu soa material oftl e enlarge- Iueutf e gagesa d pre ents th b eak g tithe; hipp ng f th p ti ii s, t'eetl'i, ,This

labial shi d a tends an ai -t g t eal fo the patients"mouth, when said' shield is slipped between the lips and gums the forme b ing depr d by he ru er apre ih,

v li ehi'ie Se ur d t he ba k ottlie patients ahead and Iie kI y c r s h;

Inpiia'c tica it is of course necessary to: check the;v breathing th pat ent h o gh he m et}? app ying an, o dinary nas l. mp,

f l that he ih af ion mu e ni en irely through the rubber gasbag or reseryoir a,

which affords fsufiicient reServe supply to P event any" l wering of the djusted ge iiresstra', e n with e p br hing; A cordi'ngi the ope at r may reg flthe. flow bf he a e het c to Suit the eryin'gri q ir ments of the; patient, with the. full lniowledge 'that'the mixture of nitrousloxidand oxygen or other anesthetizing reagents in L QIf iQQt Pl' PQ T l011S, is not subj eat to dilution or d1m1nut1onfrom loss, Furthermore, the

,, positive; p sur val e 6 may h?- dju te 7 fremtlme o t n1l in ord r t m et'the v ying' conditions, of the patient, and insure'a suflicient pressure of the gas within his res- 'p atory Organ 'Beeauseof its e r edei d flattened for 1n,'my pharyngeal inhaler is best adapt d o. keep th teiiguegiri proper po ition and fits without. danger or heee iing" clogged, in o he threat t he pa en 'lihie' las fe ture, i mat r lly ebntrihute o y he con tr ction". of he. boss Which gu rd th three v lateral openi gs by eircling flanges, wh le the bo tom openi g communicates directly "wit the. pa ien thre t-J It is pra ieelly impossible fo l ojttheseldpenings to 'b om frestriet d suf- Z ficiently 'to. impa the-breathing of th pa- Having now set forth the preferred embodiment of my invention, I claim as new and desire to secure by Letters Patent the following 1. In an'inhaling appliance, the combination with a curved tube adapted to fit into thepharynx of the patient, of means for preventing mouth. breathing associated therewith, and an outwardly-opening valve associated with said tube and adapted to permit the exhalations from the patients "lungs, substantially as set forth.

the combination with a curved tube fitting within the pharynx of the patient, of an enlarged term nal thereon having a plurality oi open ngs from different sides, and means associated J with said tube for preventing mouth breathing, substantially asset i'orth.

4.1: In an inhaler of the class described, the combination with a'tube, curved and flattened to fit within the mouth and pharynx of the patient, of, an abutment thereon formed of rela ively soft material for engagement, with the teeth of the patient, and means for preventing mouth-breathing, subantially as s f h- 5. In an inhaling device, the combination with; means for directing anesthetizing gases to the respiratory organs of the patient, of an exhaling valve, an anesthetizinggas pressure supply linje, and agas bag or reservoir posit ned. im e iat y dja ent to; a inhaler, substantially as set forth.

,6; In an inhaling device, the combination with a member adapted to direct a gaseous anesthetic to the respiratoryorgans of the patient,- ot a positive-pressure valve, an anesthetizing-gas pressure supply line, and a stantia ly as. set. f rth.

7:. In inhaling device, they combination w th a tubular memberterminally curved and fla ten d 0 tv-w l in'the hery-nx of the r t ent, o ee emt df a iel h e a apted t fi int rier y o the lips of he patien and an, exhaling, v l e Substantially iese o th,-

. In an inhalin .clevice,, the combination with a pharyngea tubular member terminally curved and flattened to fit within the pharynx of thepatient, of an apron fitting exteriorly about the patients mouth, and an adjustable exhaling valve, substantially as s t, f0 h 1,270,565 Jail:

9. A pharyngeal inhaling appliance com prising a flattened tube shaped to fit Within the mouth and pharynx of the patient, an inner labial shield and a depressing apron for the lips of the patient, an adjustableexhaling valve, and a gas bag positioned immediately adjacent to said tube through which the gas-supply is adapted to be di rected, substantially as set forth.

10. A pharyngeal inhaling appliance com prising a curved tubular member shaped to fit Within the mouth and pharynx of the patient, a spatulate inner labial shield, a depressing apron for covering the mouth of the patient, an exhaling valve, and a gas supply reservoir, substantially as set forth.

11. In an inhaling appliance, the combination with a member adapted to direct the anesthetizing reagents to the respiratory organs oi the patient, of an adjustable positive-pressure valve, anv anesthetizing-gas pressure supply line, and a distensible reservoir positioned immediately adjacent to said member, substantially as set forth.

12. In an inhaling device of the class described, the combination with a tubular pharyngeal member sha ed to fit Within the mouth and pharynx of t e patient, of an associated inner labial shield fitting between the lips and gums of the patient, an apron fitting exteriorly about and covering the Epatients inouth, means for securing the same in place and an exhaling valve, substantially as set forth 13. In an anesthetizing inhaler, the combination With a curved tubular member fitting Within the pharynx provided with lateral openings terminally thereof, and projections or ribs guarding said openings, of means for preventing mouth breathing and an outwardly opening valve associated Withsaid tube, substantially as set forth.

14:. In an anesthetizing inhaler, the combination With a pharyngeal inhaler tube, of means for supplying gas thereto, an outwardly opening valve associated with said tube, and a mouth-covering through which said tube extends, equipped with means for positively fastening said covering to the face of the patient, substantially as set forth.

In testimony whereof I do now. afiix my signature in the presence of tWo Witnesses.


. Witnesses:


Eagles of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, JD. #8.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2599521 *Jun 2, 1949Jun 3, 1952Berman Robert ARespiratory device
US2638096 *Nov 8, 1949May 12, 1953Waldhaus Edith AApparatus for oral anesthesia
US2669988 *May 8, 1951Feb 23, 1954Carpenter Victor HTeeth protector
US2750938 *Jan 24, 1955Jun 19, 1956Roy Bier EmanuelOropharyngeal airway and suction tube
US2820457 *Jan 14, 1955Jan 21, 1958John W PhillipsPositioning retainer for oro-tracheal tubes
US2882893 *May 23, 1957Apr 21, 1959Godfroy Nicholas A CCombination mouth piece and air-way
US2908269 *Mar 24, 1958Oct 13, 1959Sierra Eng CoEndotracheal tube holder and bite block
US3013554 *Aug 8, 1958Dec 19, 1961Johnson & JohnsonAirway
US3089485 *Jul 15, 1960May 14, 1963Louis HirschhornMouth-to-airway artificial respiration device
US4050457 *Sep 23, 1974Sep 27, 1977Davidson Stacy DSanitary mouth-to-mouth shield
US4223671 *Mar 26, 1979Sep 23, 1980Rudolph MutoEndotracheal tube stabilizer
US4256099 *Mar 21, 1979Mar 17, 1981Dryden Gale ETwo-tube resuscitation system
US4270531 *Dec 11, 1978Jun 2, 1981Blachly Paul HOropharyngeal airway and bite block assembly and method of use for closed pulmonary ventilation
US4374521Sep 12, 1980Feb 22, 1983Puritan-Bennett CorporationSqueeze bag type resuscitator apparatus
US5469865 *Jun 2, 1994Nov 28, 1995Minneman; Sue A. F.Mouthguard having an extra-oral portion and an intra-oral portion
US5533524 *Sep 12, 1995Jul 9, 1996Minneman; Sue A. F.Mouthguard having an extra-oral portion and an intra-oral portion
U.S. Classification128/205.17, 128/207.16
Cooperative ClassificationA61M16/0488, A61M16/0078, A61M2016/0495, A61M2016/0493
European ClassificationA61M16/04M