Patent US3627432A successfully refreshed from Google Patents.
Patent US4848329A successfully refreshed from Google Patents.
US4848329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mucoid absorbing dressing
Assignee: Individual
•
Filing: 1987-09-01
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Granted: 1989-07-18
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Expires: 2007-09-01
Abstract
Abstract A method of absorbing secretions from urostomies or other body openings and a disposable mucoid absorbing dressing having a quantity of liquid absorbing material contained therein for absorbing mucus secretions from urostomies or other body openings is disclosed.
Inventors
- 👤 Herbert Dardik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:17
CPC Classifications
A; A61; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/58; A61F; A61F13/00; A61F13/02; A61F13/0203; A61L15/22; A61L15/28
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
117 words
A dressing for covering an opening on a person's body and absorbing fluid exudate therefrom, comprising: a pad having a top surface defining a first area and an opposite bottom surface, a water-impervious backing sheet having a top surface with an adhesive coating adjacent said bottom surface of the pad and adhered thereto, said backing sheet having area greater than said first area of said pad, whereby outer portions of said backing sheet extend beyond said area of the pad, a cover sheet overlying the top surface of said pad and overlying and removably adhered to said outer portions of said adhesive-coated backing sheet, said pad containing a layer of liquid-absorbing material comprising hydrophilic beads of dextranomer.
Claim 2
Dependent Claim
117 words
A dressing for covering an opening on a person's body and absorbing fluid exudate therefrom, comprising: a pad having a top surface defining a first area and an opposite bottom surface, a water-impervious backing sheet having a top surface with an adhesive coating adjacent said bottom surface of the pad and adhered thereto, said backing sheet having area greater than said first area of said pad, whereby outer portions of said backing sheet extend beyond said area of the pad, a cover sheet overlying the top surface of said pad and overlying and removably adhered to said outer portions of said adhesive-coated backing sheet, said pad containing a layer of liquid-absorbing material comprising hydrophilic beads of dextranomer.
Claim 3
Dependent Claim
22 words
The dressing of claim 1 further comprising a readily openable sealed outer package containing said dressing and providing a humidity barrier therefore.
Claim 4
Dependent Claim
47 words
The dressing according to claim 1 wherein said pad comprises at least two layers of gauze, each having mesh apertures smaller than 0.1 mm in breadth, and said liquid-absorbing beads each having diameter of at least 0.1 mm and being disposed between said two layers of gauze.
Claim 5
Dependent Claim
40 words
A dressing according to claim 1 wherein said pad comprises at least two double layers of gauze, with said beads distributed as a layer between said two double layers, each double layer comprising at least two single layers of gauze.
Claim 6
Dependent Claim
40 words
A dressing according to claim 4 wherein each gauze layer comprises warp and weft threads, and wherein said warp threads of each single layer are oriented at an acute angle relative to the warp threads of the adjacent single layer.
Claim 7
Dependent Claim
76 words
A dressing according to claim 1 wherein said pad comprises at least two double layers of gauze, with said beads distributed as a layer between said two double layers, each double layer comprising at least two single layers, each single layer comprising sets of warp and weft threads, with the set of warp threads of one sngle layer oriented generally parallel to the set of warp threads of the other single layer and laterally displaced therefrom.
Claim 8
Dependent Claim
39 words
A dressing according to claim 1 wherein said pad comprises at least one layer of cotton comprising a plurality of cotton fibers sandwiched between two layers of gauze, and wherein said absorbent beads are distributed generally between said fibers.
Claim 9
Dependent Claim
16 words
A dressing according to claim 1 wherein said absorbent beads are spherical hydrophilic beads of dextranomer.
Claim 10
Dependent Claim
22 words
A dressing according to claim 8 wherein said absorbent material is a paste comprising 3 parts absorbent beads and 1 part glycerin.
Claim 11
Dependent Claim
29 words
A dressing according to claim 1 wherein each bead has the capacity to absorb approximately 4 ml of fluid and consequently swell to approximately 4 times its original size.
Claim 12
Dependent Claim
38 words
A dressing according to claim 1 wherein said cover sheet comprises a set of partially overlapping sheets which can be peeled back to uncover the top surface of said pad and said outer portions of said backing sheet.
Claim 13
Dependent Claim
25 words
The dressing of claim 1, wherein the liquid absorbing material comprises absorbent beads having a diameter in the range of 0.1 mm to 0.3 mm.
Claim 14
Independent Claim
179 words
A method of absorbing mucus or liquid body discharge seeping from an urostomy that serves as the exit site for a continent catheterizable ideal bladder or other body opening comprising the steps of forming a dressing by providing a pad of at least two layers of fabric, the warp and weft threads of each layer of fabric defining apertures of a first diameter, distributing a quantity of liquid absorbing material comprising hydrophilic beads of dextranomer in a layer between said fabric layers, the beads having diameter greater than the diameter of said apertures in said fabric, thereby retaining said beads from falling out of the pad, providing a water-impervious outer layer having area greater than said pad and with adhesive on its inside surface, adhering said adhesive surface to the exposed outer surface of a first of said fabric layers with a marginal area of said adhesive coated surface exposed, placing said dressing with its second fabric adjacent the body opening and with said adhesive-coated marginal area of the outer layer adhered to the person's skin adjacent said opening.
Claim 15
Independent Claim
179 words
A method of absorbing mucus or liquid body discharge seeping from an urostomy that serves as the exit site for a continent catheterizable ideal bladder or other body opening comprising the steps of forming a dressing by providing a pad of at least two layers of fabric, the warp and weft threads of each layer of fabric defining apertures of a first diameter, distributing a quantity of liquid absorbing material comprising hydrophilic beads of dextranomer in a layer between said fabric layers, the beads having diameter greater than the diameter of said apertures in said fabric, thereby retaining said beads from falling out of the pad, providing a water-impervious outer layer having area greater than said pad and with adhesive on its inside surface, adhering said adhesive surface to the exposed outer surface of a first of said fabric layers with a marginal area of said adhesive coated surface exposed, placing said dressing with its second fabric adjacent the body opening and with said adhesive-coated marginal area of the outer layer adhered to the person's skin adjacent said opening.
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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) | 1992-07-17 | 1993-01-16 | 1993-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-17 | 1997-01-16 | 1997-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-17 | 2001-01-16 | 2001-07-18 | $7700.00 | Window Closed / Lapsed |