US3552391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for maintaining a stabilized oxygen atmosphere about the head of a patient
Assignee: Individual
•
Filing: 1969-07-02
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Granted: 1971-01-05
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Expires: 1989-07-02
Abstract
Abstract A sidewall forms an open-top chamber having dimensions for containing the head of a patient and permitting free access to the head of the patient. An opening is defined in the sidewall for receiving the neck portion of the patient. Inlet structure supplies a metered supply of oxygen through the sidewall so as to induce flow currents within the chamber which tends to maintain a stabilized oxygen atmosphere about the head of the patient. A flexible sealing curtain is attached to the opening through the sidewall for sealing with the neck of the patient to eliminate leakage of the oxygen.
Inventors
- 👤 David W Deaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:28
CPC Classifications
A; A61; A61G; A61G10/00; A61G10/04
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
82 words
Apparatus for maintaining a stabilized gas atmosphere about the head of a patient comprising: a generally cylindrical open-topped chamber; a patient-receiving opening in the lower portion of said chamber; gas inlet means in the form of a T-shaped tangentially arranged inlet to establish a tangential vortex flow within said chamber and positioned in the lower portion of said chamber diammetrically opposed to said patient receiving opening; and sealing means in said patient-receiving opening to effect an airtight flow path within said chamber.
Claim 2
Dependent Claim
82 words
Apparatus for maintaining a stabilized gas atmosphere about the head of a patient comprising: a generally cylindrical open-topped chamber; a patient-receiving opening in the lower portion of said chamber; gas inlet means in the form of a T-shaped tangentially arranged inlet to establish a tangential vortex flow within said chamber and positioned in the lower portion of said chamber diammetrically opposed to said patient receiving opening; and sealing means in said patient-receiving opening to effect an airtight flow path within said chamber.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 and further comprising: means for selectively varying the percentage of a selected gas supplied to said chamber.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1 wherein the sidewalls of said chamber have a height of a dimension greater than the head of a patient.
Claim 5
Dependent Claim
23 words
The apparatus of claim 1 and further comprising: means for supplying a predetermined amount of moisture to the gas supplied to said chamber.
Claim 6
Dependent Claim
74 words
Apparatus for maintaining a selected atmosphere about the head of a patient comprising: a generally cylindrical open ended chamber; a patient-receiving opening defined in the lower portion of said chamber; and gas inlet means for establishing a tangential vortex flow of gas within said chamber and positioned in a lower portion of said chamber spaced from said patient-receiving opening, and means in said patient-receiving opening to effect a controlled flow path within said chamber.
Claim 7
Dependent Claim
74 words
Apparatus for maintaining a selected atmosphere about the head of a patient comprising: a generally cylindrical open ended chamber; a patient-receiving opening defined in the lower portion of said chamber; and gas inlet means for establishing a tangential vortex flow of gas within said chamber and positioned in a lower portion of said chamber spaced from said patient-receiving opening, and means in said patient-receiving opening to effect a controlled flow path within said chamber.
Claim 8
Dependent Claim
33 words
The apparatus of claim 3 wherein said gas inlet means comprises a T-shaped inlet for supplying gas tangent to the sidewalls of said chamber in opposite directions to induce said tangential vortex flow.
Claim 9
Dependent Claim
27 words
The apparatus of claim 5 wherein said chamber comprises: a base; and a detachable flexible member connectable to said base to form the sidewalls of said chamber.
Claim 10
Dependent Claim
94 words
Apparatus for maintaining a stabilized gas atmosphere about the head of a patient comprising: an open ended chamber having curved sidewalls; patient-receiving means defined in a lower portion of said sidewalls; and gas inlet means in the form of a tangentially arranged inlet to establish a tangential vortex flow within said chamber to maintain a stabilized gas atmosphere about the head of a patient, said gas inlet means being positioned to direct said vortex flow from a lower position within said chamber tangentially around said sidewalls and then upwardly to maintain said stabilized atmosphere.
Claim 11
Dependent Claim
94 words
Apparatus for maintaining a stabilized gas atmosphere about the head of a patient comprising: an open ended chamber having curved sidewalls; patient-receiving means defined in a lower portion of said sidewalls; and gas inlet means in the form of a tangentially arranged inlet to establish a tangential vortex flow within said chamber to maintain a stabilized gas atmosphere about the head of a patient, said gas inlet means being positioned to direct said vortex flow from a lower position within said chamber tangentially around said sidewalls and then upwardly to maintain said stabilized atmosphere.
Claim 12
Dependent Claim
20 words
The apparatus of claim 8 and further comprising: means for selectively varying the percentage of oxygen supplied to said chamber.
Claim 13
Dependent Claim
20 words
The apparatus of claim 8 wherein said sidewalls are made of transparent material to enable observation of the patient therethrough.
Claim 14
Dependent Claim
10 words
The apparatus of claim 8 wherein said sidewalls are disposable.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |