US3744491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low pressure localized hyperbaric oxygen chamber
Assignee: Individual
•
Filing: 1972-01-20
•
Granted: 1973-07-10
•
Expires: 1992-01-20
Abstract
Abstract A portable chamber is provided which permits the localized treatment, with low pressure oxygen, of non-healing ulcerations or lacerations of the body particularly the leg. In the case of a leg chamber, a sealing unit is adapted to be sealed to the patient''s leg above the ulceration. A transparent sleeve is adapted to detachably connect with the sealing unit and a sole plate which combines to effectively enclose the affected part of the leg within the chamber about the ulceration. An oxygen inlet connection is provided into the chamber with a manometer being employed to permit monitoring of chamber pressure and a pressure release valve being employed to permit adjustment of chamber pressure. A support may also be provided on the chamber exterior for purposes of preventing undesirable tilting or rolling of the chamber when sealed to the patient''s leg.
Inventors
- 👤 B Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:28
CPC Classifications
A; A61; A61M; A61M35/00; A61M35/30; A61H; A61H33/00; A61H33/14; A61H2033/143
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A low pressure hyperbaric oxygen chamber for localized treatment of wounds and ulcerations on a selected part of a patient comprising: a unitary sleeve unit adapted to encircle said body portion and having a first and a second end; a plate; first means detachably connecting and sealing the plate to said first end of the sleeve unit; a sealing unit comprising a flexible apron adapted to encircle said selected part and having a free end directed inwardly of the sleeve unit; second means detachably connecting and sealing the sealing unit to the second enD of the sleeve unit; third means comprising an elastic band for placement about the free end of the apron so as to overlap said free end and said selected part whereby said free end is sealed to surfaces of said part; and, oxygen atmosphere entry means for subjecting for interior of the chamber to an oxygen atmosphere.
Claim 2
Dependent Claim
151 words
A low pressure hyperbaric oxygen chamber for localized treatment of wounds and ulcerations on a selected part of a patient comprising: a unitary sleeve unit adapted to encircle said body portion and having a first and a second end; a plate; first means detachably connecting and sealing the plate to said first end of the sleeve unit; a sealing unit comprising a flexible apron adapted to encircle said selected part and having a free end directed inwardly of the sleeve unit; second means detachably connecting and sealing the sealing unit to the second enD of the sleeve unit; third means comprising an elastic band for placement about the free end of the apron so as to overlap said free end and said selected part whereby said free end is sealed to surfaces of said part; and, oxygen atmosphere entry means for subjecting for interior of the chamber to an oxygen atmosphere.
Claim 3
Dependent Claim
38 words
The invention in accordance with claim 1 wherein the sleeve unit comprises a sleeve of substantially transparent material tapering from a substantially smaller cross-sectional configuration at said second means to a substantially larger configuration at said first means.
Claim 4
Dependent Claim
45 words
The invention in accordance with claim 1 wherein said first means comprises a first collar on said sleeve unit and a second collar on the plate adapted to meet with one another in sealing relationship and latches for detachably connecting the collars to one another.
Claim 5
Dependent Claim
16 words
The invention in accordance with claim 3 wherein support feet form part of said second collar.
Claim 6
Dependent Claim
41 words
The invention in accordance with claim 1 wherein the second means includes a collar on said sleeve unit and a collar on the sealing unit adapted to mate with one another and latches for detachably connecting said collars in sealing relationship.
Claim 7
Dependent Claim
36 words
The invention in accordance with claim 1 wherein the third means includes fastening means on the band for adjusting the extent of compressive forces exerted by the band on the engaged surfaces of said selected part.
Claim 8
Dependent Claim
60 words
The invention in accordance with claim 1 wherein the oxygen atmosphere entry means includes fitting means at the second means having a passageway communicating with the interior of the chamber, said fitting means being adapted for coupling with a source of oxygen at a low pressure whereby such low pressure oxygen may be introduced into the interior of the chamber.
Claim 9
Dependent Claim
38 words
The invention in accordance with claim 7 wherein a pressure release valve is at the first means for controlling the pressure within the chamber of the oxygen and for providing an exit passage for oxygen within the chamber.
Claim 10
Dependent Claim
45 words
The invention in accordance with claim 8 wherein a fitting is provided at the first means having a passageway communicating with the interior of the chamber, said fitting means being adapted for coupling with a monometer to monitor the pressure of oxygen within the chamber.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |