US3908663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter
Assignee: Individual
•
Filing: 1974-01-30
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Granted: 1975-09-30
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Expires: 1994-01-30
Abstract
Abstract A catheter structure which includes a disc adapted to be positioned in contact with the urethral meatus. The disc is provided with an aperture within which is positioned a thinwalled, flexible, tubular envelope that is secured to the disc. A semi-rigid catheter tube is associated with and supported by the envelope. As the catheter tube is moved toward and into the urethra, the envelope unrolls progressively to cover the walls of the urethra and thereby prevents direct contact between the catheter tube and the walls of the urethra.
Inventors
- 👤 Nicholas F Viek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:53
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0119
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
266 words
A catheter structure comprising, in combination, a. a disc having an aperture therein, said disc being adapted to be placed in contact with the area surrounding the urethral meatus with said aperture in registry with the urethra, b. a thin-walled, flexible, tubular envelope secured to said disc, the forward end of said envelope being disposed within said aperture, said envelope extending rearwardly of said disc and terminating in a plurality of bands, and c. a semi-rigid catheter tube associated with said envelope, said catheter tube and said envelope having a common axis, the forward end of said catheter tube being inseparably secured to, disposed within and supported by said envelope rearwardly of said disc, said catheter tube having a plurality of apertures corresponding to the number of said bands through which said bands are threaded, said bands extending forwardly over said catheter tube and the ends of said bands are secured to said disc, said apertures in said catheter tube being spaced from the forward end of said catheter tube a distance sufficient to allow the envelope to cover the walls of the urethra and the forward end of said catheter tube within the envelope to enter the bladder, whereby upon longitudinal movement of said catheter tube toward and into the urethra causes said envelope to unroll progressively to cover the walls of the urethra and upon longitudinal withdrawal of said catheter tube causes said envelope to uncover progressively the walls of the urethra, said envelope being of sufficient length so as to cover the walls of the urethrha before said catheter tube enters the bladder.
Claim 2
Dependent Claim
266 words
A catheter structure comprising, in combination, a. a disc having an aperture therein, said disc being adapted to be placed in contact with the area surrounding the urethral meatus with said aperture in registry with the urethra, b. a thin-walled, flexible, tubular envelope secured to said disc, the forward end of said envelope being disposed within said aperture, said envelope extending rearwardly of said disc and terminating in a plurality of bands, and c. a semi-rigid catheter tube associated with said envelope, said catheter tube and said envelope having a common axis, the forward end of said catheter tube being inseparably secured to, disposed within and supported by said envelope rearwardly of said disc, said catheter tube having a plurality of apertures corresponding to the number of said bands through which said bands are threaded, said bands extending forwardly over said catheter tube and the ends of said bands are secured to said disc, said apertures in said catheter tube being spaced from the forward end of said catheter tube a distance sufficient to allow the envelope to cover the walls of the urethra and the forward end of said catheter tube within the envelope to enter the bladder, whereby upon longitudinal movement of said catheter tube toward and into the urethra causes said envelope to unroll progressively to cover the walls of the urethra and upon longitudinal withdrawal of said catheter tube causes said envelope to uncover progressively the walls of the urethra, said envelope being of sufficient length so as to cover the walls of the urethrha before said catheter tube enters the bladder.
Claim 3
Dependent Claim
44 words
A catheter structure as defined in claim 1 wherein said disc is provided with an internal collar defining said aperture, said envelope terminating in a cuff brought over and secured to said collar and the ends of said bands are secured to said collar.
Claim 4
Dependent Claim
190 words
A catheter structure comprising, in combination, a. a disc having an aperture therein, said disc being adapted to be placed in contact with the area surrounding the urethral meatus with said aperture in registry with the urethra, b. a thin-walled, flexible, tubular envelope secured to said disc, the forward end of said envelope being disposed within said aperture, said envelope extending rearwardly of said disc, c. a semi-rigid tubular sleeve enclosed within said envelope, said tubular sleeve being coextensive longitudinally with said envelope, and d. a semi-rigid catheter tube associated with said envelope, said catheter tube and said envelope having a common axis, theh forward end of said catheter tube being inseparably secured to and supported by the rearward end of said envelope, whereby upon longitudinal movement of said catheter tube toward and into the urethra causes said envelope to unroll progressively to cover the walls of the urethra and upon longitudinal withdrawal of said catheter tube causes said envelope to uncover progressively the walls of the urethra, said envelope being of sufficient length so as to cover the walls of the urethra before said catheter tube enters the bladder.
Claim 5
Dependent Claim
190 words
A catheter structure comprising, in combination, a. a disc having an aperture therein, said disc being adapted to be placed in contact with the area surrounding the urethral meatus with said aperture in registry with the urethra, b. a thin-walled, flexible, tubular envelope secured to said disc, the forward end of said envelope being disposed within said aperture, said envelope extending rearwardly of said disc, c. a semi-rigid tubular sleeve enclosed within said envelope, said tubular sleeve being coextensive longitudinally with said envelope, and d. a semi-rigid catheter tube associated with said envelope, said catheter tube and said envelope having a common axis, theh forward end of said catheter tube being inseparably secured to and supported by the rearward end of said envelope, whereby upon longitudinal movement of said catheter tube toward and into the urethra causes said envelope to unroll progressively to cover the walls of the urethra and upon longitudinal withdrawal of said catheter tube causes said envelope to uncover progressively the walls of the urethra, said envelope being of sufficient length so as to cover the walls of the urethra before said catheter tube enters the bladder.
Claim 6
Dependent Claim
41 words
A catheter structure as defined in claim 3 wherein said disc consists of a pair of mating plates each having an aperture and an annular kerf surrounding said aperture and the ends of said tubular envelope are secured within said kerfs.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |