US3630207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pericardial catheter
Assignee: Bayer Corp
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Filing: 1969-08-08
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Granted: 1971-12-28
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Expires: 1989-08-08
Abstract
Abstract The pericardial catheter has a main tube, flat in cross section, open at one end and closed at the other. The top wall is flat and the bottom wall is generally flat, having a plurality of openings near to but spaced from the closed end. A plurality of lengthwise extending ridges lie between successive openings and on each end of them. A round collapse-prevention member is inside the main tube and has an outer diameter at least as great as the inner distance between the top and bottom walls.
Inventors
- 👤 Paul Kahn
- 👤 Mogens L Bramson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:09
CPC Classifications
A; A61; A61M; A61M27/00; A61M1/00; A61M1/36; A61M1/3621; A61M1/3653; A61M1/3659
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
109 words
A pericardial catheter, including in combination, a main tube of flexible plastic, flat in cross section open at one end and closed at the other and having a flat top wall, a generally flat bottom wall, and shallow sidewalls, said bottom wall having entrance opening means spaced from the closed end of the tube, said bottom wall also having a plurality of lengthwise extending ridges adjacent the longitudinal ends of said opening means, and a collapse-prevention member, round in cross section, inside said main tube along the longitudinal centerline thereof and having an outer diameter at least as great as the inner distance between said top and bottom walls.
Claim 2
Dependent Claim
109 words
A pericardial catheter, including in combination, a main tube of flexible plastic, flat in cross section open at one end and closed at the other and having a flat top wall, a generally flat bottom wall, and shallow sidewalls, said bottom wall having entrance opening means spaced from the closed end of the tube, said bottom wall also having a plurality of lengthwise extending ridges adjacent the longitudinal ends of said opening means, and a collapse-prevention member, round in cross section, inside said main tube along the longitudinal centerline thereof and having an outer diameter at least as great as the inner distance between said top and bottom walls.
Claim 3
Dependent Claim
24 words
The catheter of claim 1 having a plurality of entrance opening means spaced apart from each other by a plurality of lengthwise extending ridges.
Claim 4
Dependent Claim
13 words
The catheter of claim 1 wherein said collapse-prevention member is a hollow tube.
Claim 5
Dependent Claim
111 words
A pericardial catheter, including in combination, a main flexible plastic tube, flat in cross section open at one end and closed at the other and having a generally flat bottom wall, a flat top wall, and shallow sidewalls, said bottom wall having a plurality of entrance openings spaced from each other and from the closed end of the tube, said bottom wall also having a plurality of lengthwise extending ridges between said openings and adjacent their distal ends, and a collapse-prevention tube, round in cross section inside said main tube along the longitudinal outerline thereof and slightly larger in outer diameter than the inner distance between said top and bottom walls.
Claim 6
Dependent Claim
111 words
A pericardial catheter, including in combination, a main flexible plastic tube, flat in cross section open at one end and closed at the other and having a generally flat bottom wall, a flat top wall, and shallow sidewalls, said bottom wall having a plurality of entrance openings spaced from each other and from the closed end of the tube, said bottom wall also having a plurality of lengthwise extending ridges between said openings and adjacent their distal ends, and a collapse-prevention tube, round in cross section inside said main tube along the longitudinal outerline thereof and slightly larger in outer diameter than the inner distance between said top and bottom walls.
Claim 7
Dependent Claim
12 words
The catheter of claim 4 wherein said entrance openings are generally rectangular.
Claim 8
Dependent Claim
25 words
The catheter of claim 5 wherein there are two said entrance openings and wherein there are three said ridges in each location of said ridges.
Claim 9
Dependent Claim
19 words
The catheter of claim 6 wherein said entrance openings are approximately as wide as the width across said ridges.
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) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |