US4790833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag of plastic film for collecting discharges from human or animal bodies via drains
Assignee: Coloplast AS
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Filing: 1986-09-26
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Granted: 1988-12-13
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Expires: 2006-09-26
Abstract
Abstract A plastic bag for collecting discharges via a drain, especially from operation wounds, from, e.g., the thoracic and abdominal cavities. The bag is somewhat similar to an ostomy bag but differs in that a portion of its front wall has an increased surface area and reduced material thickness by being processed to form a film blister. This blister area allows a grip on the drain protruding into the bag through an aperture in its rear wall. The grip provided by the blister area makes it possible to manipulate the drain, notably to pull it gradually out from the body, without exposing the operation wound to any risk of infection.
Inventors
- 👤 Richard Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:51
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/69
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
A bag of plastic film for collecting discharges from human and animal bodies via drains, the bag consisting of a rear wall and a front wall sealed to each other along the peripheral edges, the rear wall being provided with an aperture adapted to receive a drain; means around said aperture for attaching the bag to the body surface around a body opening through which the drain carries the discharges from the body to the bag; wherein the upper part of the front wall in at least an area opposite the aperture in the rear wall has been processed to form a supple film blister means to allow the user to manipulate a drain, said film blister means being of increased surface area and reduced material thickness compared to the surface area and thickness without such processing.
Claim 2
Dependent Claim
137 words
A bag of plastic film for collecting discharges from human and animal bodies via drains, the bag consisting of a rear wall and a front wall sealed to each other along the peripheral edges, the rear wall being provided with an aperture adapted to receive a drain; means around said aperture for attaching the bag to the body surface around a body opening through which the drain carries the discharges from the body to the bag; wherein the upper part of the front wall in at least an area opposite the aperture in the rear wall has been processed to form a supple film blister means to allow the user to manipulate a drain, said film blister means being of increased surface area and reduced material thickness compared to the surface area and thickness without such processing.
Claim 3
Dependent Claim
16 words
A collecting bag according to claim 1, wherein the film blister pattern is wavy in cross-section.
Claim 4
Dependent Claim
63 words
A collecting bag according to claim 2, wherein the waves of the film blister in cross-section form a pattern of a number of substantially straight lines substantially parallel to lateral edges of the bag, each straight line parallel to one lateral edge being connected to a corresponding straight line parallel to the other lateral edge of the bag by a substantially circular arc.
Claim 5
Dependent Claim
24 words
A collecting bag according to claim 1, wherein the film blister has a comparatively coarse structure and has been overlaid with finer blister structure.
Claim 6
Dependent Claim
148 words
A bag of plastic film for collecting discharges from human and animal bodies via drains, the bag consisting of a rear wall and a front wall sealed to each other along the peripheral edges, the rear wall being provided with an aperture adapted to receive a drain; means around said aperture for attaching the bag to the body surface around a body opening through which the drain carries the discharges from the body to the bag, and a closable discharge opening in the bottom of the bag; wherein the upper part of the front wall in at least an area opposite the aperture in the rear wall has been processed to form a supple film blister means to allow the user to manipulate a drain, said film blister means being of increased surface area and reduced material thickness compared to the surface area and thickness without much processing.
Claim 7
Dependent Claim
148 words
A bag of plastic film for collecting discharges from human and animal bodies via drains, the bag consisting of a rear wall and a front wall sealed to each other along the peripheral edges, the rear wall being provided with an aperture adapted to receive a drain; means around said aperture for attaching the bag to the body surface around a body opening through which the drain carries the discharges from the body to the bag, and a closable discharge opening in the bottom of the bag; wherein the upper part of the front wall in at least an area opposite the aperture in the rear wall has been processed to form a supple film blister means to allow the user to manipulate a drain, said film blister means being of increased surface area and reduced material thickness compared to the surface area and thickness without much processing.
Claim 8
Dependent Claim
25 words
A collecting bag according to claim 5, wherein the film blister has a comparatively coarse structure and has been overlaid with a finer blister structure.
Claim 9
Dependent Claim
16 words
A collecting bag according to claim 5, wherein the film blister pattern is wavy in cross-section.
Claim 10
Dependent Claim
63 words
A collecting bag according to claim 7, wherein the waves of the film blister in cross-section form a pattern of a number of substantially straight lines substantially parallel to lateral edges of the bag, each straight line parallel to one lateral edge being connected to a corresponding straight line parallel to the other lateral edge of the bag by a substantially circular arc.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |