US4820289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Male external catheter
Assignee: ER Squibb and Sons LLC
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Filing: 1987-09-29
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Granted: 1989-04-11
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Expires: 2007-09-29
Abstract
Abstract A male external catheter comprising a condom-like sheath having at least one of its surfaces flocked with a fabric is disclosed. The flocked catheter provides greater comfort, absorbs moisture, and is easier to apply than prior art sheaths.
Inventors
- 👤 Frank Coury
- 👤 Margaret A. Frank
- 👤 Daniel M. Sivilich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:26
CPC Classifications
A; A61; A61L; A61L29/00; A61L29/04; A61F; A61F5/00; A61F5/44; A61F5/451; A61F5/453
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
In a male external condom catheter for use in male urinary evacuation or male incontinence, which catheter comprises a sheath of a thin, flexible, elastomeric material, having an inside surface and an outside surface, adapted to fit over the penis, and having a constricted downstream end portion adapted to provide a fluid-tight connection with a drain tube; the improvement wherein at least one of said surfaces of said sheath is flocked wherein said flocking comprises a thin uniform layer of adhesive on said surface and a plurality of particles of a fiber uniformly covering, and bonded to, said adhesive such that a smooth felt-like surface is provided.
Claim 2
Dependent Claim
107 words
In a male external condom catheter for use in male urinary evacuation or male incontinence, which catheter comprises a sheath of a thin, flexible, elastomeric material, having an inside surface and an outside surface, adapted to fit over the penis, and having a constricted downstream end portion adapted to provide a fluid-tight connection with a drain tube; the improvement wherein at least one of said surfaces of said sheath is flocked wherein said flocking comprises a thin uniform layer of adhesive on said surface and a plurality of particles of a fiber uniformly covering, and bonded to, said adhesive such that a smooth felt-like surface is provided.
Claim 3
Dependent Claim
20 words
The external catheter of claim 1 wherein said thin, flexible, elastomeric material is selected from latex rubber and silicone rubber.
Claim 4
Dependent Claim
12 words
The external catheter of claim 2 wherein said material is latex rubber.
Claim 5
Dependent Claim
20 words
The external catheter of claim 1 wherein said flocking is selected from cotton, rayon, polyester, polypropylene, polyethylene and blends thereof.
Claim 6
Dependent Claim
12 words
The external catheter of claim 4 wherein said flocking is of rayon.
Claim 7
Dependent Claim
17 words
The external catheter of claim 1 wherein said adhesive is selected from neoprene blends and acrylic adhesives.
Claim 8
Dependent Claim
13 words
The external catheter of claim 6 wherein said adhesive is a neoprene blend.
Claim 9
Independent Claim
101 words
A method for preparing a flocked male external condom catheter comprising (a) forming a sheath in the shape desired for said catheter; (b) applying a thin, uniform coating of adhesive to surfaces of said sheath to be flocked; (c) placing the so-coated sheath, prior to curing of said adhesive, into an enclosed chamber containing an amount of particles of a desired fabric flocking material sufficient to cover said surfaces to be flocked; and, (d) establishing relative motion between said sheath and said particles of fabric such that a uniform coating of said particles bonded to said adhesive coated sheath is provided.
Claim 10
Independent Claim
101 words
A method for preparing a flocked male external condom catheter comprising (a) forming a sheath in the shape desired for said catheter; (b) applying a thin, uniform coating of adhesive to surfaces of said sheath to be flocked; (c) placing the so-coated sheath, prior to curing of said adhesive, into an enclosed chamber containing an amount of particles of a desired fabric flocking material sufficient to cover said surfaces to be flocked; and, (d) establishing relative motion between said sheath and said particles of fabric such that a uniform coating of said particles bonded to said adhesive coated sheath is provided.
Claim 11
Dependent Claim
49 words
The method of claim 8 wherein said sheath is formed by dipping a mold of the desired catheter shape into a bath of a flexible elastomeric material in a liquid, uncured state and thereafter removing said mold from said bath and allowing the so-formed sheath to cool and dry.
Claim 12
Dependent Claim
17 words
The method of claim 8 wherein said thin, uniform coating of adhesive is sprayed onto said sheath.
Claim 13
Dependent Claim
19 words
The method of claim 8 wherein the relative motion is established by blowing said flocking particles throughout said chamber.
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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) | 1992-04-10 | 1992-10-10 | 1993-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-10 | 1996-10-10 | 1997-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-10 | 2000-10-10 | 2001-04-11 | $7700.00 | Window Closed / Lapsed |