US4445897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter for postsurgical drainage
Assignee: METEVE A SWEDEN CORP AB
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Filing: 1982-05-28
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Granted: 1984-05-01
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Expires: 2002-05-28
Abstract
Abstract The present invention relates to a catheter intended for postsurgical drainage of a wound area after a surgical incision and particularly such a catheter which is connected to a wound secretion receiver being provided with a vacuo. The catheter is characterized in that it at its front end is provided with at least one slot (6), which extends along the catheter (1), whereby throughopenings (9) are arranged from the bottom of the slot (6) to a lumen (2) arranged centrally in the catheter (1). Using the present invention no suction-in of tissue into the lumen (2) of the catheter (1) will occur but the catheter can be removed without applying any greater force and without obtaining any trauma in the wound.
Inventors
- 👤 Fred V. G. Ekbladh
- 👤 Hans Tillander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:43
CPC Classifications
A; A61; A61M; A61M27/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A catheter for post-surgical drainage of a wound comprising a flexible tube having a distal end and a proximal end, and having a centrally arranged inner lumen extending longitudinally thereof, said catheter being adapted to be connected at its proximal end to a suction means for withdrawing drainage through said lumen and further being adapted for its distal end to be implanted in the wound area to be drained, in which catheter there is provided at least one longitudinal slot opening in the surface of the distal end of said catheter which connects to a second longitudinal lumen which is at least as long as said slot opening and has a maximum width which is larger than the width of said slot opening, and there further being a plurality of through-openings extending between the base of said second lumen into said first lumen, whereby drainage can pass from the wound area to said second lumen, then into said first lumen.
Claim 2
Dependent Claim
160 words
A catheter for post-surgical drainage of a wound comprising a flexible tube having a distal end and a proximal end, and having a centrally arranged inner lumen extending longitudinally thereof, said catheter being adapted to be connected at its proximal end to a suction means for withdrawing drainage through said lumen and further being adapted for its distal end to be implanted in the wound area to be drained, in which catheter there is provided at least one longitudinal slot opening in the surface of the distal end of said catheter which connects to a second longitudinal lumen which is at least as long as said slot opening and has a maximum width which is larger than the width of said slot opening, and there further being a plurality of through-openings extending between the base of said second lumen into said first lumen, whereby drainage can pass from the wound area to said second lumen, then into said first lumen.
Claim 3
Dependent Claim
21 words
Catheter according to claim 1, characterized in that it is provided with two slots (6) arranged diametrically opposite to each other.
Claim 4
Dependent Claim
62 words
Catheter according to claim 1, characterized in that the lumen (7) formed by the widening of the slot (6) runs parallel to the inner lumen (2) of the catheter (1) and is arranged to allow passage to the area outside the catheter (1), whereby this second lumen (7) is preferably arranged to be blocked at the rear end of the catheter (1).
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) | 1987-05-01 | 1987-10-31 | 1988-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-01 | 1991-10-31 | 1992-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-01 | 1995-10-31 | 1996-05-01 | $7700.00 | Window Closed / Lapsed |