Patent US4501580A successfully refreshed from Google Patents.
US4501580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indwelling catheters
Assignee: Individual
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Filing: 1983-01-21
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Granted: 1985-02-26
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Expires: 2003-01-21
Abstract
Abstract Indwelling catheters provided in their insert end with an inflatable balloon, having at least one longitudinal channel, serpentine or otherwise, on it's outside surface terminating at the insert end of the catheter spaced from the inflatable balloon. The channel has a series of ports opening into a passageway in the catheter wall that terminates at the outer end of the catheter in a fluid inlet. The fluid is delivered into the passageway through said inlet and flows through the ports and into the channel so as to irrigate or medicate the urethral canal and the outside surface of the catheter.
Inventors
- 👤 Jacob A. Glassman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:02
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0017; A61M25/10; A61M2025/1043; A61M2025/1061; A61M2210/00; A61M2210/10; A61M2210/1078; A61M2210/1085; A61M2210/1089; A61M2210/16; A61M2210/166; A61M25/0067; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
215 words
A catheter for use in the irrigation of a bladder and flushing of urethral and prostatic canal, comprising; a. a flexible tubular member having an annular wall of uniform diameter; b. said wall having exterior and interior surfaces; c. said tubular member having a closed end for insertion into the bladder and an open outer end; d. an annular inflation balloon adjacent the insertable end of said tubular member; e. the interior surface of said tubular member forming an axial flow duct of uniform diameter having at least one drain hole near said closed end to receive fluid drainage from the bladder; f. a passage in the wall of said tubular member extending from said tubular outer end and opening at it's other end into the interior of said balloon; g. a relative deep channel in said exterior surface of said tubular member extending from adjacent the open outer end of said member into close proximity with the balloon; h. a fluid passageway in the annular wall of said member: and i. at least one radial vent in said tubular member flow-connecting said fluid passageway with said channel whereby fluid delivered through the vent enters the channel for distribution on the walls of the prostatic and urethral canals to eliminate ascending infection in said channel.
Claim 2
Dependent Claim
215 words
A catheter for use in the irrigation of a bladder and flushing of urethral and prostatic canal, comprising; a. a flexible tubular member having an annular wall of uniform diameter; b. said wall having exterior and interior surfaces; c. said tubular member having a closed end for insertion into the bladder and an open outer end; d. an annular inflation balloon adjacent the insertable end of said tubular member; e. the interior surface of said tubular member forming an axial flow duct of uniform diameter having at least one drain hole near said closed end to receive fluid drainage from the bladder; f. a passage in the wall of said tubular member extending from said tubular outer end and opening at it's other end into the interior of said balloon; g. a relative deep channel in said exterior surface of said tubular member extending from adjacent the open outer end of said member into close proximity with the balloon; h. a fluid passageway in the annular wall of said member: and i. at least one radial vent in said tubular member flow-connecting said fluid passageway with said channel whereby fluid delivered through the vent enters the channel for distribution on the walls of the prostatic and urethral canals to eliminate ascending infection in said channel.
Claim 3
Dependent Claim
160 words
A catheter comprising: a. a flexible tubular member for insertion into the urethral and prostatic canals having an annular wall; b. said wall having outer and inner surfaces; c. said tubular member having an insertable end and an open outer end; d. said inner surface of the annular wall forming an axial flow duct opening through both ends of the tubular member for draining purposes; e. an inflatable balloon secured to the tubular member adjacent it's insertable end; f. at least one passageway for sterile fluid in the annular wall extending from said outer end and terminating short of said insertable end; g. at least one channel in the outer surface of the said annular wall starting from adjacent the said open end and terminating just short of the balloon; and h. at least one flow duct connecting the passageway with the channel to admit sterile fluid from the passageway into the channel for irrigating the urethral and prostatic canals.
Claim 4
Dependent Claim
160 words
A catheter comprising: a. a flexible tubular member for insertion into the urethral and prostatic canals having an annular wall; b. said wall having outer and inner surfaces; c. said tubular member having an insertable end and an open outer end; d. said inner surface of the annular wall forming an axial flow duct opening through both ends of the tubular member for draining purposes; e. an inflatable balloon secured to the tubular member adjacent it's insertable end; f. at least one passageway for sterile fluid in the annular wall extending from said outer end and terminating short of said insertable end; g. at least one channel in the outer surface of the said annular wall starting from adjacent the said open end and terminating just short of the balloon; and h. at least one flow duct connecting the passageway with the channel to admit sterile fluid from the passageway into the channel for irrigating the urethral and prostatic canals.
Claim 5
Dependent Claim
27 words
The catheter recited in claim 2, wherein the channel is serpentine in configuration and of sufficient depth to insure fluid flow therein when the prostate is swollen.
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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) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |