US4085755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urinary drainage bag
Assignee: Individual
•
Filing: 1977-09-01
•
Granted: 1978-04-25
•
Expires: 1997-09-01
Abstract
Abstract The specification describes a fluid drainage bag having first and second plies, a fold in the first ply, and a drainage opening closed by a flap valve in the fold. The fold is held open by means of a flexible drainage tube maintained in a flexed position between the fold and the upper end of the bag. The opening of the fold draws the flap valve away from the second ply so that it does not stick in the open position to the second ply.
Inventors
- 👤 Benjamin Stuart Burrage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:49
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
165 words
A fluid drainage bag comprising a first ply, a second ply, a fold in said first ply, a hollow fitting provided at said fold and forming a drainage opening through said first ply into said bag, a resilient self closing flap valve for closing said drainage opening, a flexible drainage tube secured to said fitting and means for flexing a portion of said drainage tube between said fitting and the upper end of said bag, the flexed portion of said drainage tube opening said fold and drawing said flap valve away from said second ply to permit free opening of the flap valve in a manner so as to preclude sticking in the open position to the second ply, the arrangement being such that said fitting is inclined from the horizontal and said flap valve is inclined from the vertical so that fluid draining through said drainage tube flows down through said fitting onto said flap valve which opens under the weight of the fluid.
Claim 2
Dependent Claim
165 words
A fluid drainage bag comprising a first ply, a second ply, a fold in said first ply, a hollow fitting provided at said fold and forming a drainage opening through said first ply into said bag, a resilient self closing flap valve for closing said drainage opening, a flexible drainage tube secured to said fitting and means for flexing a portion of said drainage tube between said fitting and the upper end of said bag, the flexed portion of said drainage tube opening said fold and drawing said flap valve away from said second ply to permit free opening of the flap valve in a manner so as to preclude sticking in the open position to the second ply, the arrangement being such that said fitting is inclined from the horizontal and said flap valve is inclined from the vertical so that fluid draining through said drainage tube flows down through said fitting onto said flap valve which opens under the weight of the fluid.
Claim 3
Dependent Claim
24 words
A fluid drainage bag as claimed in claim 1 wherein said fitting is stiff to preclude bending of same during opening of said fold.
Claim 4
Dependent Claim
22 words
A fluid drainage bag as claimed in claim 2 wherein said fitting is a straight fitting to preclude trapping of fluid therein.
Claim 5
Dependent Claim
26 words
A fluid drainage bag as claimed in claim 1 wherein said flap valve is larger than said drainage opening and is intregal with said first ply.
Claim 6
Dependent Claim
54 words
A fluid drainage bag as claimed in claim 1 wherein said means for flexing a portion of said drainage tube comprises an aperture provided in a plate at the upper end of said bag, said aperture frictionally engaging the sidewall of said drainage tube thereby precluding movement of said drainage tube in said aperture.
Claim 7
Dependent Claim
24 words
A fluid drainage bag as claimed in claim 5 wherein said plate is provided between said first and second plies for reinforcing said bag.
Claim 8
Dependent Claim
29 words
A fluid drainage bag as claimed in claim 1 including hook means for hanging said bag on a support and fluid drainage means for draining fluid from said bag.
Claim 9
Dependent Claim
39 words
A bag as claimed in claim 7 wherein said fluid draining means comprises a flexible tube extending from the interior of said bag and a clamp on said tube to pinch and close said tube when not in use.
Claim 10
Dependent Claim
27 words
A bag as claimed in claim 4 wherein a clearance is provided along the edge of said flap valve between said flap valve and said first ply.
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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |