Patent US2344583A successfully refreshed from Google Patents.
US4474571A
Expired / Lapsed
US
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Portable topical hyperbaric chamber assembly
Assignee: Individual
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Filing: 1982-09-29
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Granted: 1984-10-02
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Expires: 2002-09-29
Abstract
Abstract A portable topical hyperbaric chamber assembly for covering a surface portion of the patient's body for treatment with pressurized oxygen. The assembly comprises a circular base with a plurality of support and positioning rods extending downwardly from the peripheral portion of the base. A resilient circular gasket, open at its top and bottom, snugly fitted into the circular area defined by the rods depending from the base so that its top snugly engages the bottom surface of the base for sealing purposes and the bottom engages the skin of the patient for sealing. The base is equipped with connections for attaching various hoses from the pressurized oxygen control device.
Inventors
- 👤 Robert A. Lasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:05
CPC Classifications
A; A61; A61M; A61M35/00; A61M35/30; A61H; A61H33/00; A61H33/14; A61H2033/143; A61H35/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
220 words
A portable topical hyperbaric chamber for enclosing a surface portion of the patient's body for treatment with oxygen or other gas at pressures slightly above atmospheric said portable chamber comprising: a flat circular base having a top face and a bottom face, a plurality of support and positioning rods secured to and extending downwardly from the peripheral edge portion of the bottom face of the circular base to define a circular area, a circular resilient gasket having a top and a bottom, open at its bottom, fitted into the circular area defined by the support and positioning rods, the top of said gasket being adjacent the flat circular base, said gasket having a cylindrical body with a vertical outside wall sized to fit within the area defined by the said rods and engaged thereby to retain the gasket in position, said cylindrical body having a top portion and a bottom portion, a flange extending radially and inwardly from the bottom portion of the body, said flange terminating in a feather lip to form the bottom of the gasket being adapted to sealingly contact the patient's skin surrounding the wound to be treated and the base being provided with connections to receive a controlled supply of pressurized oxygen or other suitable gas, said connections communicating with the interior of the gasket.
Claim 2
Dependent Claim
220 words
A portable topical hyperbaric chamber for enclosing a surface portion of the patient's body for treatment with oxygen or other gas at pressures slightly above atmospheric said portable chamber comprising: a flat circular base having a top face and a bottom face, a plurality of support and positioning rods secured to and extending downwardly from the peripheral edge portion of the bottom face of the circular base to define a circular area, a circular resilient gasket having a top and a bottom, open at its bottom, fitted into the circular area defined by the support and positioning rods, the top of said gasket being adjacent the flat circular base, said gasket having a cylindrical body with a vertical outside wall sized to fit within the area defined by the said rods and engaged thereby to retain the gasket in position, said cylindrical body having a top portion and a bottom portion, a flange extending radially and inwardly from the bottom portion of the body, said flange terminating in a feather lip to form the bottom of the gasket being adapted to sealingly contact the patient's skin surrounding the wound to be treated and the base being provided with connections to receive a controlled supply of pressurized oxygen or other suitable gas, said connections communicating with the interior of the gasket.
Claim 3
Dependent Claim
26 words
The invention as set forth in claim 1 and wherein the circular resilient gasket is provided with an opening at its top and at its bottom.
Claim 4
Dependent Claim
42 words
The invention as set forth in claim 2 and wherein the openings in the top and bottom of the gasket are of different sizes and the gasket is reversible whereby the chamber may conveniently be used in treating wounds of different sizes.
Claim 5
Dependent Claim
21 words
The invention as set forth in claim 1 and wherein the flat circular base is provided with a safety exhaust valve.
Claim 6
Dependent Claim
27 words
The invention as set forth in claim 1 and wherein the flat circular base is transparent to thereby aid in properly positioning the chamber over the wound.
Claim 7
Dependent Claim
22 words
The invention as set forth in claim 1 and wherein flexible strap means are provided to secure the chamber to the patient.
Claim 8
Dependent Claim
52 words
The invention as set forth in claim 2 and wherein a flange extends radially inward from the top portion of the body, said flange terminating in a feather lip to form said top opening, the lip of the flange extending from the top flange sealingly engaging the bottom face of the base.
References Cited (Backward Citations)
GB641061A
Cited
US4328799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |