US2418473A - Hood for oxygen therapy - Google Patents
Hood for oxygen therapy Download PDFInfo
- Publication number
- US2418473A US2418473A US589449A US58944945A US2418473A US 2418473 A US2418473 A US 2418473A US 589449 A US589449 A US 589449A US 58944945 A US58944945 A US 58944945A US 2418473 A US2418473 A US 2418473A
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- Prior art keywords
- hood
- oxygen
- skirt
- base
- patient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002640 oxygen therapy Methods 0.000 title description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 38
- 229910052760 oxygen Inorganic materials 0.000 description 38
- 239000001301 oxygen Substances 0.000 description 38
- 238000004378 air conditioning Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000474 nursing effect Effects 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 210000000038 chest Anatomy 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 206010009244 Claustrophobia Diseases 0.000 description 2
- 206010035664 Pneumonia Diseases 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 208000019899 phobic disease Diseases 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010007559 Cardiac failure congestive Diseases 0.000 description 1
- 208000001778 Coronary Occlusion Diseases 0.000 description 1
- 206010011086 Coronary artery occlusion Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241000792859 Enema Species 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 208000032923 Lobar pneumonia Diseases 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 206010039897 Sedation Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 210000003278 egg shell Anatomy 0.000 description 1
- 238000002565 electrocardiography Methods 0.000 description 1
- 239000007920 enema Substances 0.000 description 1
- 229940079360 enema for constipation Drugs 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010253 intravenous injection Methods 0.000 description 1
- 238000002483 medication Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003236 psychic effect Effects 0.000 description 1
- 230000036280 sedation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G10/00—Treatment rooms or enclosures for medical purposes
- A61G10/04—Oxygen tents ; Oxygen hoods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/06—Respiratory or anaesthetic masks
- A61M16/0605—Means for improving the adaptation of the mask to the patient
- A61M16/0627—Means for improving the adaptation of the mask to the patient with sealing means on a part of the body other than the face, e.g. helmets, hoods or domes
Definitions
- This invention relates generally to oxygen therapy apparatus but more particularly to a transparent hood adapted for the administration of oxygen.
- Another object of the invention is to provide an oxygen hood which permits such procedures as intravenous injections of fluids and medications, enemas, bed baths, X-ray photography and electrocardiography without removing the patient from the hood.
- Another object of the invention is to provide an oxygen hood in which the patients chest and abdomen are accessible for examination, and one in which his head and face may be easily inspected.
- Another object of the invention is to provide a transparent oxygen hood which provides for the patients visibility without any distortion and by which patients who ar not acutely ill are able to read or write without eyestrain or inconvenience.
- Figure 1 is a perspective view showing the assembled hood placed in operative position
- Figure 2 is a sectionized View taken on a longitudinal plane through the center of the hood
- Figure 3 is a plan view showing the hood in operative position
- Figure 4 is a perspective view of the hood showing the arrangement of the skirt and means (of attachment to the rim;
- Figure 5 is a sectiom'zed detail of a portion of the base taken on the line 5-5 of Figure 2 showing the construction of the inlet and outlet tube connections;
- Figure 6 is a sectionized perspective of a portion of the base taken on the line 6-6 of Figure 3 showing the construction of the nozzle.
- the oxygen therapy unit which forms the subject matter of this invention. comprises a small completely transparent hood enclosing the head and neck of the patient, and designed to be removably attached by inlet and outlet tubes to the air conditioning machine of the standard oxygen tent, and to be snugly'sealed 2 about the neck of a patient by means of an attached skirt.
- the hood is a modification of the oxygen tent principle which is designed to obviate many of th disadvantages of the large oxygen tent, namely, low oxygen concentrations, inaccessibility of the patient, difiiculty of application, and psychic phenomena such as claustrophobia and feeling of suffocation.
- the base and the dome are preferably formed of Lucite, a methyl methacrylatic plastic, or any other suitable, tough, colorless, transparent material, and the skirt is made of oiled silk.
- the shape of the oxygen hood is that of an eggshell bisected longitudinally.
- the base por- .tion iii of the hood is a wedge-shaped section of the entire oval unit upon which the dome H is mounted.
- the base adjacent its upper edge is stepped inward to form a flange i3 and a ledge I l upon which the dome rests when its inner peripheral surfaoeengages the flange.
- a grooved rim !5 To the outer surface of the base adjacent its lower edge is located a grooved rim !5. This grooved rim is adapted to retain the skirt 52 by means of a draw string It which clamps a portion of the skirt adjacen its upper edge within the groove H in the rim.
- the skirt is formed of a pliable material such as oiled silk and is of sufiicient length to overlap posteriorly, when it is attached to the rim l5 by means of the draw string l6, as shown in Fig. 4.
- the posterior edges 58 and I8 of the skirt 12 are formed with concave arcuate portions as illustrated at it and IS in Fig. 4. The edges are thus formed to adapt the skirt to contact more perfectly the curved surface of the patients neck.
- the skirt which functions as a snugly fitting drape, prevents gross leakage of gas about the neck of the patient, and may be easily replaced when it becomes soiled or worn.
- the nozzle 22, which communicates with th nipple 23, may be formed integral with the base ii as shown in Figs. 5 and 6, or it may be formed as a separate unit and attached to the base.
- Circulation, cooling, humidification, carbon dioxide absorption and addition of oxygen to the respired gases is accomplished by means of an air conditioning unit as used with a standard oxygen tent.
- an air conditioning unit as used with a standard oxygen tent.
- An additional rheostat should be added to the circuit to slow the motor down to any desired speed.
- the adaptability of the hood to this common type of equipment obviates the necessity of specialized equipment and is of considerable economic importance.
- the air exhaled by the patient is drawn out the back of the hood via the flexible outlet tube 20 into the air conditioning unit 24 where it is cooled, humidified, carbon dioxide absorbed therefrom, and oxygen is added thereto. From the cooling chamber it is blown through the corrugated inlet tube 29 into the hood where it follows the dome of the hood anteriorly.
- the technique for use of the oxygen therapy hood is extremely simple. With oxygen flowing at the desired rate and the circulating fan turned on, the hood is placed over the head of the patient in such a way that it rests on the pillow posteriorly and on the patients chest anteriorly. The patient, therefore, lies with his head on a pillow and is in contact with the hood at only one point, the chest.
- the skirt l2 overlaps the rim I5 posteriorly.
- the free edges l8 and iii of the skirt are crossed behind the patients neck with the arcuately curved portions l9 and I9 drawn snugly on each side thereof and the lower portion of the edges overlapped anteriorly.
- the end portion of the skirt is then folded once under th hood completing the application. This provides a comfortable, adequate seal which can be immediately undone, even by the patient.
- the application is identical for patients in the Fowler position. It is unnecessary to point out that proper application of any device for oxygen therapy contributes greatly to its emciency.
- .Per cent 50- The hood is of great service in the treatment of various pathological conditions requiring oxygen therapy seen in a general hospital. Pneumonia, acute coronary occlusion and congestive heart failure, or where a combinationof these made up the largest group of patients. Post op- .erative patients, shock, asthma and a. number of other conditions have also been treated in this manner.
- This small oxygen hood has advantages other than high oxygen concentration and its acceptability to the patient. It is safe. Mistakes in its application or in the oxygen supply will not harm the patient.
- the hood In comparison with oxygen administration by nasal catheter, the hood has the advantage of being far more comfortable and acceptable to the patient, especially if therapy must be prolonged more than a few hours, and higher oxygen concentrations can be administered by means of the hood.
- a well placed nasal catheter is capable of providing alveolar concentrations of about 60% oxygen (comparable to inspired air oxygen concentrations of approximately 65-68%) at a flow of 6-8 liters oxygen per minute.
- the eiiectiveness is dependent largely upon the proper insertion of the catheter.
- the hood has certain advantages over the face masks in popular use at this time. It is more acceptable to the patient, and more comfortable if used for periods of twenty-four hours or longer. Furthermore, in the majority of conditions which call for oxygen therapy, concentrations of 70-80% are entirely adequate for clinical purposes, barring acute surgical, anaesthetic and traumatic emergencies, where oxygen is of great value.
- An oxygen hood comprising a base member having inlet and outlet tubes adapted to be connected to an air conditioning apparatus, a transparent oval-shaped dome mounted upon said base, and a skirt of flexible material connected to the lower portion of said base, said skirt being provided with free edges having arcuately curved portions and lower extending portions adapted respectively to be crossed behind the patients neck and overlapped anteriorly.
- a device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a wedge-shaped base section having an upper flanged ledge portion, and a dome mounted on said flanged ledge, a grooved rim formed integral with said base portion adjacent its lower periphery, and a skirt formed of gas-tight material detachably connected to said grooved rim by means of an encircling string.
- a device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a wedge-shaped base section provided with inlet and outlet tube connections, and an upper flanged ledge portion, a dome mounted on said flanged portion, a grooved rim surrounding said base portion adjacent its lower periphery, and a skirt formed of flexible gas-tight material detachably connected to said grooved rim by means of an encircling string.
- a device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a base section having an upper flanged ledge formed integral therewith and upper and lower edges in anteriorly converging planes, a dome mounted on said flanged ledge, a grooved rim surrounding said base portion adjacent its lower extremity, and a flexible gas-tight skirt detachably connected to said grooved rim by means of an encircling string.
- a device for administration of oxygen comprising an oval-shaped hood formed of transparent material, said hood including a wedge- I shaped base section provided with an inlet and an outlet tube connection, a nozzle attached to said base and communicating with said inlet tube connection, a flanged ledge formed integral with said base at its upper extremity, a grooved rim encircling said base at its lower extremity, and a skirt detachably connected to said grooved rim by means of an encircling string, said skirt having overlapping edges with oppositely located concaved portions adapted to encircle the neck of the patient, and to overlap and fold upon itself to form a seal.
- a device for administration of oxygen comprising an oval-shaped hood formed of transparent material, said hood including a wedgeshaped base section having an upper flanged ledge and a lower grooved rim, the upper and lower periphery of said flange and said rim lying in anteriorly converging planes, an inlet and an outlet tube connection attached to the posterior portion of said base adapted to elTect communication with an air conditioning apparatus, adefleeting nozzle in communication with said inlet connection, a skirt encircling said rim with overlapping edges, each of which is formed with a contour including a centrally located concaved portion adapted to encircle the neck of the patient, said skirt being of suflicient length to be folded upon itself at its extremity to form a' gas seal.
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Description
April 1947- c. J. LAMBERTSEN EI'AL 2,418,473
HOOD FOR OXYGEN THERAPY Filed April 20, 1945 2 Sheets-Sheet l J4- P 20 z avwcvlfo'co Ghri -fian JLalmberfsen L/nco/n Godfrey 4 b; q flfwk w afloznur April 8, 1947.
C. J. LAMBERTSEN EI'AL HOOD FOR OXYGEN THERAPY Filed April 20, 1945 2 Sheets-Sheet 2 atfozmmga Patented Apr. 8, 1947 HOOD FUR ()XZGEN THERAPY Christian J. Lambertscn and Lincoln Godfrey, United States Army Application April 20, 1945, Serial No. 589,449
(Granted under the act of March 3, 1883, as
amended April 30, 1928; 3'70 0. G. 757) 6 Claims.
The invention described herein may be manufactured and used by or for the Government for governmental purposes, without payment to us of any royalty thereon.
This invention relates generally to oxygen therapy apparatus but more particularly to a transparent hood adapted for the administration of oxygen.
One object of the invention 'is to provide a small, light-weight oxygen hood which may be easily applied and taken care of by the nursin stair, and which makes nursing of acutely in patients who need, oxygen a great deal easier.
Another object of the invention is to provide an oxygen hood which permits such procedures as intravenous injections of fluids and medications, enemas, bed baths, X-ray photography and electrocardiography without removing the patient from the hood.
Another object of the invention is to provide an oxygen hood in which the patients chest and abdomen are accessible for examination, and one in which his head and face may be easily inspected.
Another object of the invention is to provide a transparent oxygen hood which provides for the patients visibility without any distortion and by which patients who ar not acutely ill are able to read or write without eyestrain or inconvenience.
Further objects and advantages of the present invention will be apparent from the following description reference being had to the accompanying drawings.
Referring to the drawings in which like parts are indicated by similar reference characters:
Figure 1 is a perspective view showing the assembled hood placed in operative position;
Figure 2 is a sectionized View taken on a longitudinal plane through the center of the hood;
Figure 3 is a plan view showing the hood in operative position;
Figure 4 is a perspective view of the hood showing the arrangement of the skirt and means (of attachment to the rim;
Figure 5 is a sectiom'zed detail of a portion of the base taken on the line 5-5 of Figure 2 showing the construction of the inlet and outlet tube connections; and
Figure 6 is a sectionized perspective of a portion of the base taken on the line 6-6 of Figure 3 showing the construction of the nozzle.
Briefly stated, the oxygen therapy unit which forms the subject matter of this invention. comprises a small completely transparent hood enclosing the head and neck of the patient, and designed to be removably attached by inlet and outlet tubes to the air conditioning machine of the standard oxygen tent, and to be snugly'sealed 2 about the neck of a patient by means of an attached skirt.
The hood is a modification of the oxygen tent principle which is designed to obviate many of th disadvantages of the large oxygen tent, namely, low oxygen concentrations, inaccessibility of the patient, difiiculty of application, and psychic phenomena such as claustrophobia and feeling of suffocation.
Referring to the illustrations, particularly Fig. l, the numeral it indicates the base of the hood, H the dome, and I2 the skirt. The base and the dome are preferably formed of Lucite, a methyl methacrylatic plastic, or any other suitable, tough, colorless, transparent material, and the skirt is made of oiled silk.
The shape of the oxygen hood is that of an eggshell bisected longitudinally. The base por- .tion iii of the hood is a wedge-shaped section of the entire oval unit upon which the dome H is mounted.
The base adjacent its upper edge is stepped inward to form a flange i3 and a ledge I l upon which the dome rests when its inner peripheral surfaoeengages the flange.
To the outer surface of the base adjacent its lower edge is located a grooved rim !5. This grooved rim is adapted to retain the skirt 52 by means of a draw string It which clamps a portion of the skirt adjacen its upper edge within the groove H in the rim.
The skirt. is formed of a pliable material such as oiled silk and is of sufiicient length to overlap posteriorly, when it is attached to the rim l5 by means of the draw string l6, as shown in Fig. 4.
The posterior edges 58 and I8 of the skirt 12 are formed with concave arcuate portions as illustrated at it and IS in Fig. 4. The edges are thus formed to adapt the skirt to contact more perfectly the curved surface of the patients neck. The skirt, which functions as a snugly fitting drape, prevents gross leakage of gas about the neck of the patient, and may be easily replaced when it becomes soiled or worn.
Two long corrugated rubber inlet and outlet tubes 29 and 253 engage nipples 2| and 2! attached to the base H3. These tubes connect the hood with the air conditioning unit 24. By means of a small flat nozzle 22 having a narrow discharge opening 23, the air current into the hood is deflected upward and carried forward along the curve of the dome. 4
The nozzle 22, which communicates with th nipple 23, may be formed integral with the base ii as shown in Figs. 5 and 6, or it may be formed as a separate unit and attached to the base.
Circulation, cooling, humidification, carbon dioxide absorption and addition of oxygen to the respired gases is accomplished by means of an air conditioning unit as used with a standard oxygen tent. When operating the hood described herein, it is necessary to change the air conditioning unit in only one respect. An additional rheostat should be added to the circuit to slow the motor down to any desired speed. The adaptability of the hood to this common type of equipment obviates the necessity of specialized equipment and is of considerable economic importance.
The air exhaled by the patient is drawn out the back of the hood via the flexible outlet tube 20 into the air conditioning unit 24 where it is cooled, humidified, carbon dioxide absorbed therefrom, and oxygen is added thereto. From the cooling chamber it is blown through the corrugated inlet tube 29 into the hood where it follows the dome of the hood anteriorly.
The technique for use of the oxygen therapy hood is extremely simple. With oxygen flowing at the desired rate and the circulating fan turned on, the hood is placed over the head of the patient in such a way that it rests on the pillow posteriorly and on the patients chest anteriorly. The patient, therefore, lies with his head on a pillow and is in contact with the hood at only one point, the chest.
As mentioned above, the skirt l2 overlaps the rim I5 posteriorly. In applying the hood the free edges l8 and iii of the skirt are crossed behind the patients neck with the arcuately curved portions l9 and I9 drawn snugly on each side thereof and the lower portion of the edges overlapped anteriorly. The end portion of the skirt is then folded once under th hood completing the application. This provides a comfortable, adequate seal which can be immediately undone, even by the patient. The application is identical for patients in the Fowler position. It is unnecessary to point out that proper application of any device for oxygen therapy contributes greatly to its emciency.
In using this hood, the general considerations of oxygen flow and air circulation are decisions to be made by the clinician in his judgment of the case. Thus, in certain cases it may be desirable V to decrease the air temperature within the hood,
Average Oxygen Concentration Liters Oxygen per min.
.Per cent 50- The hood is of great service in the treatment of various pathological conditions requiring oxygen therapy seen in a general hospital. Pneumonia, acute coronary occlusion and congestive heart failure, or where a combinationof these made up the largest group of patients. Post op- .erative patients, shock, asthma and a. number of other conditions have also been treated in this manner.
This small oxygen hood has advantages other than high oxygen concentration and its acceptability to the patient. It is safe. Mistakes in its application or in the oxygen supply will not harm the patient.
Three factors contribute largely to the patients feeling of comfort and safety; the whole tent is very light and no weight rests upon the patients head, the visibility is excellent, and the hood can be removed by the patient at a moments notice. These have overcome one of the theoretical objections to such an apparatus, the belief that many would develop claustrophobia in such a confined space. This has not been true as has been found by test.
There are certain limitations which must be realized. Any of the present types of apparatus designed for the therapeutic administration of oxygen suffer in efiiciency if they are improperly or poorly handled, and, although in clinical use the small hood gives uniformly good results with a minimum of nursing care and has obviated the need of special technicians or special duty nurses, its efiiciency will suffer with poor care.
Patients who are vomiting frequently and those who must expectorate continually are not easily handled in the hood. The latter objection does not hold true for cases in which expectoration and cough can be minimized by sedation as in lobar pneumonia.
In comparing this small hood with the large oxygen tents in use today, the greatest single advantage for the former is the fact that oxygen concentrations can be maintained that are far above the theoretical maximum concentrations obtained in the large tents. It is generally supposed that, at a flow of from 6-8 liters per minute, concentrations ranging from 40%60% are obtained in the large oxygen tents. However, it has been the applicants experience and the experience of others that such concentrations are only seen when special duty nursing care is given the patient. In fact, with ward nursing care, a maximum concentration of 40% is seldom seen unless the oxygen flow is increased to from 12 to 16 liters per minute.
In comparison with oxygen administration by nasal catheter, the hood has the advantage of being far more comfortable and acceptable to the patient, especially if therapy must be prolonged more than a few hours, and higher oxygen concentrations can be administered by means of the hood. A well placed nasal catheter is capable of providing alveolar concentrations of about 60% oxygen (comparable to inspired air oxygen concentrations of approximately 65-68%) at a flow of 6-8 liters oxygen per minute. However, the eiiectiveness is dependent largely upon the proper insertion of the catheter.
The hood has certain advantages over the face masks in popular use at this time. It is more acceptable to the patient, and more comfortable if used for periods of twenty-four hours or longer. Furthermore, in the majority of conditions which call for oxygen therapy, concentrations of 70-80% are entirely adequate for clinical purposes, barring acute surgical, anaesthetic and traumatic emergencies, where oxygen is of great value.
Having thus described our invention, what we claim as new and wish to secure by Letters Patent is: I
1. An oxygen hood comprising a base member having inlet and outlet tubes adapted to be connected to an air conditioning apparatus, a transparent oval-shaped dome mounted upon said base, and a skirt of flexible material connected to the lower portion of said base, said skirt being provided with free edges having arcuately curved portions and lower extending portions adapted respectively to be crossed behind the patients neck and overlapped anteriorly.
2. A device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a wedge-shaped base section having an upper flanged ledge portion, and a dome mounted on said flanged ledge, a grooved rim formed integral with said base portion adjacent its lower periphery, and a skirt formed of gas-tight material detachably connected to said grooved rim by means of an encircling string.
3. A device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a wedge-shaped base section provided with inlet and outlet tube connections, and an upper flanged ledge portion, a dome mounted on said flanged portion, a grooved rim surrounding said base portion adjacent its lower periphery, and a skirt formed of flexible gas-tight material detachably connected to said grooved rim by means of an encircling string.
4. A device for administration of oxygen comprising an oval-shaped hood formed of transparent plastic material, said hood comprising a base section having an upper flanged ledge formed integral therewith and upper and lower edges in anteriorly converging planes, a dome mounted on said flanged ledge, a grooved rim surrounding said base portion adjacent its lower extremity, and a flexible gas-tight skirt detachably connected to said grooved rim by means of an encircling string.
5. A device for administration of oxygen comprising an oval-shaped hood formed of transparent material, said hood including a wedge- I shaped base section provided with an inlet and an outlet tube connection, a nozzle attached to said base and communicating with said inlet tube connection, a flanged ledge formed integral with said base at its upper extremity, a grooved rim encircling said base at its lower extremity, and a skirt detachably connected to said grooved rim by means of an encircling string, said skirt having overlapping edges with oppositely located concaved portions adapted to encircle the neck of the patient, and to overlap and fold upon itself to form a seal.
6. A device for administration of oxygen comprising an oval-shaped hood formed of transparent material, said hood including a wedgeshaped base section having an upper flanged ledge and a lower grooved rim, the upper and lower periphery of said flange and said rim lying in anteriorly converging planes, an inlet and an outlet tube connection attached to the posterior portion of said base adapted to elTect communication with an air conditioning apparatus, adefleeting nozzle in communication with said inlet connection, a skirt encircling said rim with overlapping edges, each of which is formed with a contour including a centrally located concaved portion adapted to encircle the neck of the patient, said skirt being of suflicient length to be folded upon itself at its extremity to form a' gas seal.
CHRISTIAN J. LAMBERTSEN. LINCOLN GODFREY.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,389,293 Blosser Nov. 120, 1945 FOREIGN PATENTS Number Country Date 826,254 French Jan. 4. 1938
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US589449A US2418473A (en) | 1945-04-20 | 1945-04-20 | Hood for oxygen therapy |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US589449A US2418473A (en) | 1945-04-20 | 1945-04-20 | Hood for oxygen therapy |
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US2418473A true US2418473A (en) | 1947-04-08 |
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US589449A Expired - Lifetime US2418473A (en) | 1945-04-20 | 1945-04-20 | Hood for oxygen therapy |
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Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2503725A (en) * | 1948-07-24 | 1950-04-11 | John Bunn Corp | Oxygen tent sealing appliance |
US2508050A (en) * | 1947-06-26 | 1950-05-16 | V S Anthony Company Inc | Device for administering oxygen |
US3357426A (en) * | 1965-01-14 | 1967-12-12 | Univ California | Adherent face mask having a quick disconnect fitting and disposable components |
US4328799A (en) * | 1980-06-13 | 1982-05-11 | Lopiano Rocco W | Sacral topical hyperbaric oxygen chambers |
US4444183A (en) * | 1981-12-04 | 1984-04-24 | Heckendorn David E | Hood |
US4832042A (en) * | 1987-08-19 | 1989-05-23 | Emory University | Ventilator hood system for indirect calorimetry |
US4949714A (en) * | 1989-07-26 | 1990-08-21 | Viratek Inc. | Scavenging medical hood |
WO1992018189A1 (en) * | 1991-04-12 | 1992-10-29 | N.J. Rochester Limited | Equipment and method for gas extraction in general anaesthesia |
EP0610097A1 (en) * | 1993-02-05 | 1994-08-10 | Instrumentarium Corporation | Gas collecting unit |
US5636627A (en) * | 1991-04-12 | 1997-06-10 | N.J. Rochester Limited | Equipment and method for gas extraction in general anaesthesia |
US6076524A (en) * | 1992-08-31 | 2000-06-20 | Children's Medical Center Corporation | Anesthetic scavenging hood |
US6572594B2 (en) | 1999-08-18 | 2003-06-03 | R.S. Medical Equipment Llc | Skin treatment using neuromuscular stimulation and a treatment gas containing medicine |
US20030135915A1 (en) * | 2002-01-24 | 2003-07-24 | Starmed S.P.A. | Helmet for artificial respiration without the aid of masks |
US8397725B2 (en) | 2009-09-04 | 2013-03-19 | Designwise Medical | Respiratory treatment delivery system |
US20160107006A1 (en) * | 2013-06-13 | 2016-04-21 | The Board Of Trustees Of The University Of Illinois | Helmet for anesthesia |
US9795758B2 (en) | 2013-06-25 | 2017-10-24 | Breathe Technologies, Inc. | Ventilator with integrated cooling system |
US20210330419A1 (en) * | 2020-04-24 | 2021-10-28 | Dr. J.L. Danner, Inc. | Patient barrier device and associated system and method for reducing exposure between a patient and caregiver |
IT202100009506A1 (en) * | 2021-04-15 | 2022-10-15 | Intersurgical S P A | HELMET FOR THERAPY OF PATIENTS |
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FR826254A (en) * | 1936-12-04 | 1938-03-28 | Individual and collective oxygen-inhaler | |
US2389293A (en) * | 1943-07-12 | 1945-11-20 | John A Blosser | Inhalant hood |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2508050A (en) * | 1947-06-26 | 1950-05-16 | V S Anthony Company Inc | Device for administering oxygen |
US2503725A (en) * | 1948-07-24 | 1950-04-11 | John Bunn Corp | Oxygen tent sealing appliance |
US3357426A (en) * | 1965-01-14 | 1967-12-12 | Univ California | Adherent face mask having a quick disconnect fitting and disposable components |
US4328799A (en) * | 1980-06-13 | 1982-05-11 | Lopiano Rocco W | Sacral topical hyperbaric oxygen chambers |
US4444183A (en) * | 1981-12-04 | 1984-04-24 | Heckendorn David E | Hood |
US4832042A (en) * | 1987-08-19 | 1989-05-23 | Emory University | Ventilator hood system for indirect calorimetry |
US4949714A (en) * | 1989-07-26 | 1990-08-21 | Viratek Inc. | Scavenging medical hood |
US5636627A (en) * | 1991-04-12 | 1997-06-10 | N.J. Rochester Limited | Equipment and method for gas extraction in general anaesthesia |
WO1992018189A1 (en) * | 1991-04-12 | 1992-10-29 | N.J. Rochester Limited | Equipment and method for gas extraction in general anaesthesia |
US6076524A (en) * | 1992-08-31 | 2000-06-20 | Children's Medical Center Corporation | Anesthetic scavenging hood |
EP0610097A1 (en) * | 1993-02-05 | 1994-08-10 | Instrumentarium Corporation | Gas collecting unit |
US5526818A (en) * | 1993-02-05 | 1996-06-18 | Instrumentarium Corporation | Gas collecting unit |
US6572594B2 (en) | 1999-08-18 | 2003-06-03 | R.S. Medical Equipment Llc | Skin treatment using neuromuscular stimulation and a treatment gas containing medicine |
US6792623B2 (en) * | 2002-01-24 | 2004-09-21 | Starmed S.P.A. | Helmet for artificial respiration without the aid of masks |
US20030135915A1 (en) * | 2002-01-24 | 2003-07-24 | Starmed S.P.A. | Helmet for artificial respiration without the aid of masks |
US8397725B2 (en) | 2009-09-04 | 2013-03-19 | Designwise Medical | Respiratory treatment delivery system |
US20160107006A1 (en) * | 2013-06-13 | 2016-04-21 | The Board Of Trustees Of The University Of Illinois | Helmet for anesthesia |
US10799727B2 (en) * | 2013-06-13 | 2020-10-13 | The Board Of Trustees Of The University Of Illinois | Helmet for anesthesia |
US9795758B2 (en) | 2013-06-25 | 2017-10-24 | Breathe Technologies, Inc. | Ventilator with integrated cooling system |
US20210330419A1 (en) * | 2020-04-24 | 2021-10-28 | Dr. J.L. Danner, Inc. | Patient barrier device and associated system and method for reducing exposure between a patient and caregiver |
IT202100009506A1 (en) * | 2021-04-15 | 2022-10-15 | Intersurgical S P A | HELMET FOR THERAPY OF PATIENTS |
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