US4781713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Incontinence pad for females
Assignee: Covidien AG
•
Filing: 1987-06-10
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Granted: 1988-11-01
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Expires: 2007-06-10
Abstract
Abstract A disposable incontinence pad to be worn by a female. The pad is an essentially two part design including a moisture multi-layered absorbent pad encase in a moisture resistant hydrophobic layer which prevents leakage of urine to the skin of the wearer. The pad has an essentially ovoid opening on the side facing the wearer. Securely attached to the opening into the pad is an essentially ovoid, resilient contoured rim portion which surrounds and conforms itself to the vulvar region of the wearer. The rim portion is contoured so as to direct urine flow into the absorbent pad with minimal splash-back while at the same time preventing urine from contacting the user.
Inventors
- 👤 Kathleen Welch
- 👤 Terese Campion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:06
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/4401; A61F5/451; A61F5/455; A61F13/00; A61F13/15; A61F13/45; A61F13/47; A61F13/472
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
132 words
A disposable incontinence pad to be worn by a female comprising a highly moisture-absorbent multi-layered pad encased in a moisture-resistant hydrophobic layer which in turn is surrounded by a moisture absorbent-hydrophilic layer, said pad having an essentially ovoid opening therein and having securely attached thereto on a surface of the pad contacting a user an essentially ovoid resilient contoured rim portion defining an essentially ovoid opening which is continuous with said opening in said pad, said rim portion surrounding and conforming itself to the entire vulvar region of the user and surrounding and being in contact with said opening in said pad, the rim portion being contoured so as to direct urine flow into the absorbent pad with minimal splash-back while at the same time preventing urine from contacting the vulvar tissue.
Claim 2
Dependent Claim
132 words
A disposable incontinence pad to be worn by a female comprising a highly moisture-absorbent multi-layered pad encased in a moisture-resistant hydrophobic layer which in turn is surrounded by a moisture absorbent-hydrophilic layer, said pad having an essentially ovoid opening therein and having securely attached thereto on a surface of the pad contacting a user an essentially ovoid resilient contoured rim portion defining an essentially ovoid opening which is continuous with said opening in said pad, said rim portion surrounding and conforming itself to the entire vulvar region of the user and surrounding and being in contact with said opening in said pad, the rim portion being contoured so as to direct urine flow into the absorbent pad with minimal splash-back while at the same time preventing urine from contacting the vulvar tissue.
Claim 3
Dependent Claim
17 words
Incontinence pad as in claim 1 in which the rim is made from polyurethane foam or polyester.
Claim 4
Dependent Claim
26 words
Incontinence pad as in claim 2 in which the polyurethane foam rim portion is made hydrophobic so as to promote urine flow into the absorbent pad.
Claim 5
Dependent Claim
26 words
Incontinence pad as in claim 1 wherein the moisture absorbent pad comprises a central layer of superabsorbent material surrounded by two outside layers of absorbent material.
Claim 6
Dependent Claim
24 words
Incontinence pad as in claim 4 in which the absorbent material is selected from the group consisting of cellulose fluff and synthetic fluff material.
Claim 7
Dependent Claim
28 words
Incontinence pad as in claim 4 in which the pad accomodates a urine flow into the pad at a flow rate of up to 25 cc per second.
Claim 8
Dependent Claim
21 words
Incontinence pad as in claim 4 in which the layers of the pad can absorb up to 300 cc of urine.
Claim 9
Dependent Claim
23 words
Incontinence pad as in claim 1 in which the hydrophobic layer is a film selected from the group consisting of polyethylene and polypropylene.
Claim 10
Dependent Claim
20 words
Incontinence pad as in claim 1 in which the hydrophilic layer is a cover sheet formed from nonwoven absorbent polyester.
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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) | 1991-11-01 | 1992-05-02 | 1992-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-11-01 | 1996-05-02 | 1996-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-11-01 | 2000-05-02 | 2000-11-01 | $7700.00 | Window Closed / Lapsed |