Patent US4820289A successfully refreshed from Google Patents.
US4820289A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Male external catheter
Assignee: ER Squibb and Sons LLC
•
Filing: 1987-09-29
•
Granted: 1989-04-11
•
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 12:43
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.
References Cited (Backward Citations)
US3349768A
Cited
US3511241A
Cited
US3520305A
Cited
US3633581A
Cited
US3608552A
Cited
US3788324A
Cited
US3863638A
Cited
US4035532A
Cited
US4187851A
Cited
US4483951A
Cited
GB2099706A
Cited
US4419097A
Cited
US4475910A
Cited
US4475909A
Cited
US4573984A
Cited
US4490145A
Cited
US4675012A
Cited
US4601716A
Cited
US4726359A
Cited
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 |