US3683918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable bag for medical uses
Assignee: Individual
•
Filing: 1971-02-02
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Granted: 1972-08-15
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Expires: 1991-02-02
Abstract
Abstract A disposable bag for medical uses includes front and back plastic sheets edge-sealed together. The front sheet has a circular opening and a double-sided adhesive annular disc, with a peelable covering, concentrically disposed about the opening. The diameter of the annulus is smaller than that of the opening in the front sheet so that, in a smaller annular area about the opening, the front and back sheets stick to one another, thereby maintaining a sanitary interior prior to use and, when the bag is not completely filled, enabling the opening to be closed after use. In one embodiment the bag is also provided with a valve to drain the collected contents or to permit the escape of trapped gases.
Inventors
- 👤 Raymond R Pizzella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:03
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/443; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
88 words
A disposable bag comprising first and second sheets of flexible material edge-sealed together to form a hollow flexible structure, said first sheet having an opening of a first diameter, an annular double-sided adhesive member contacting said first member and surrounding said opening, said member having an annulus of diameter less than the diameter of said opening, thereby to define a smaller annular adhesive area between said diameters in which said first and second sheets releaseably adhere to one another, and a removable covering disposed on said adhesive member.
Claim 2
Dependent Claim
88 words
A disposable bag comprising first and second sheets of flexible material edge-sealed together to form a hollow flexible structure, said first sheet having an opening of a first diameter, an annular double-sided adhesive member contacting said first member and surrounding said opening, said member having an annulus of diameter less than the diameter of said opening, thereby to define a smaller annular adhesive area between said diameters in which said first and second sheets releaseably adhere to one another, and a removable covering disposed on said adhesive member.
Claim 3
Dependent Claim
25 words
The disposable bag of claim 1 wherein said sheets are substantially triangular in shape, said opening being disposed near to one of the apexes thereof.
Claim 4
Dependent Claim
129 words
The disposable bag of claim 2 for medical uses including the collection of human excretions from a body opening wherein said first and second sheets comprise a flexible plastic translucent material, upon the removal of said covering said annular adhesive member being adapted to adhere to the skin surrounding the body opening, thereby to provide a fluid tight seal to prevent the leakage of excretions flowing from said body opening through said opening in said front sheet into the hollow interior of said bag, the hollow interior of said bag being adapted to receive said excretions by pulling apart said first and second sheets in said smaller annular adhesive area, and further being adapted to re-seal said bag by pressing together said sheets in said smaller annular adhesive area.
Claim 5
Dependent Claim
28 words
The disposAble bag of claim 3 wherein said covering includes a circular central portion covering said annulus to maintain the interior of said bag sanitary prior to use.
Claim 6
Dependent Claim
36 words
The disposable bag of claim 3 in combination with a valve in one of said sheets to permit the drainage of the contents collected in said bag or to permit the escape of gases trapped therein.
Claim 7
Dependent Claim
16 words
The disposable bag of claim 5 wherein said covering is substantially congruent to said annular member.
Claim 8
Dependent Claim
55 words
The disposable bag of claim 6 wherein said annular adhesive member has an outside diameter of about 4.0 inches and an annulus of diameter about 1.25 inches, said opening in said first member being a circle having a diameter of about 1.75 inches, thereby defining said smaller annular area as being about 0.25 inches wide.
Claim 9
Dependent Claim
33 words
The disposable bag of claim 7 wherein said bag has the approximate shape of an isosceles triangle having a base dimension of about 13 inches and a height dimension of about 14 inches.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |