US3820546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined air vent,filter and adapter for urinary drainage assemblies
Assignee: Abbott Laboratories
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Filing: 1972-09-01
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Granted: 1974-06-28
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Expires: 1992-09-01
Abstract
Abstract A combined air vent, filter and adapter for connecting a urinary drainage catheter to a collection container is disclosed. The combined device comprises two tubular extensions joined by a cylindrical chamber of larger diameter than the tubular extensions and having an opening therein through which air can pass. The opening is covered with a filtering material of a pore size selected to filter bacteria from the air entering it.
Inventors
- 👤 E Wilson
- 👤 F Macalalad
- 👤 R Massman
- 👤 R Chittenden
- 👤 A Whitton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:31
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/44; A61F5/4404; A61F5/441
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
164 words
In a tubular adapter for use with a urinary drainage system, wherein said tubular adapter has one extension thereof adapted for engagement with a drainage catheter and the other extension thereof adapted for engagement with the proximal end of a drainage tube joined at its distal end to a urine collection container to thereby provide a consecutive flow path through said catheter, adapter and tube into said container, and wherein said tubular adapter is further characterized by a filtered opening therein in communication with said flow path and covered by a bacteria filtering material through which air can pass but body fluids cannot, which filtered opening is adapted to admit filtered, atmospheric air into said flow path in the vicinity of said proximal end of said drainage tube, the improvement which comprises: a diametrically enlarged chamber portion in said tubular adapter intermediate said extensions thereof and having said filtered opening disposed in an end wall of said enlarged chamber transverse to said flow path.
Claim 2
Dependent Claim
164 words
In a tubular adapter for use with a urinary drainage system, wherein said tubular adapter has one extension thereof adapted for engagement with a drainage catheter and the other extension thereof adapted for engagement with the proximal end of a drainage tube joined at its distal end to a urine collection container to thereby provide a consecutive flow path through said catheter, adapter and tube into said container, and wherein said tubular adapter is further characterized by a filtered opening therein in communication with said flow path and covered by a bacteria filtering material through which air can pass but body fluids cannot, which filtered opening is adapted to admit filtered, atmospheric air into said flow path in the vicinity of said proximal end of said drainage tube, the improvement which comprises: a diametrically enlarged chamber portion in said tubular adapter intermediate said extensions thereof and having said filtered opening disposed in an end wall of said enlarged chamber transverse to said flow path.
Claim 3
Dependent Claim
11 words
The adapter of claim 1, wherein said enlarged chamber is cylindrical.
Claim 4
Dependent Claim
12 words
The adapter of claim 1, wherein said bacteria filtering material is hydrophobic.
Claim 5
Dependent Claim
29 words
The adapter of claim 1, wherein said filtered third opening is disposed in said end wall adapted for facing said catheter when said catheter is joined to said adapter.
Claim 6
Dependent Claim
16 words
The adapter of claim 1, wherein the configuration of said filtered third opening is an annulus.
Claim 7
Dependent Claim
30 words
The adapter of claim 1, wherein said filtered third opening is defined by legs connecting the portion of said adapter defining said enlarged chamber to adjacent portions of said adapter.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |