US5004455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infection-resistant catheter
Assignee: Individual
•
Filing: 1989-07-17
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Granted: 1991-04-02
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Expires: 2009-07-17
Abstract
Abstract A draining catheter for the prevention of infectious diseases around its outside periphery, which has a secondary channel system for the application of anti-microbial agents to the area surrounding its outside periphery.
Inventors
- 👤 Eugene C. Greenwood
- 👤 John Hyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:07
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0043; A61M25/0017; A61M25/0021; A61M25/0023; A61M25/0026; A61M2025/0036; A61M2025/004; A61M2025/0056; A61M25/0067; A61M25/0074; A61M25/0075; A61M2025/0076; A61M25/003; A61M25/0068; A61M25/007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
A catheter comprising: an elastomeric tubular device for passing into the human body containing a first channel passing through the entire length of said catheter, open proximate one end to the outside of said catheter for receiving fluid, and a means at the other end to contain or dispose of said fluid, and one or more secondary channels generally parallel to said first channel with closed ends proximate the open end of said first channel, with slits or punctures through the wall to the periphery of said catheter, said slits or punctures being dimensionless and closed by elastic memory until pressurized from within said secondary channel or channels.
Claim 2
Dependent Claim
108 words
A catheter comprising: an elastomeric tubular device for passing into the human body containing a first channel passing through the entire length of said catheter, open proximate one end to the outside of said catheter for receiving fluid, and a means at the other end to contain or dispose of said fluid, and one or more secondary channels generally parallel to said first channel with closed ends proximate the open end of said first channel, with slits or punctures through the wall to the periphery of said catheter, said slits or punctures being dimensionless and closed by elastic memory until pressurized from within said secondary channel or channels.
Claim 3
Dependent Claim
21 words
A catheter as set forth in claim 1 wherein said secondary channels are combined into one channel proximate the open end.
Claim 4
Dependent Claim
23 words
A catheter as set forth in claim 1 wherein said combined channel contains connecting means for connecting to a pressure and pumping source.
References Cited (Backward Citations)
US4717379A
Cited
US4867742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-01 | 1994-10-01 | 1995-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-01 | 1998-10-01 | 1999-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-01 | 2002-10-01 | 2003-04-02 | $7700.00 | Window Closed / Lapsed |