Patent US3636187A successfully refreshed from Google Patents.
US4548602A
Expired / Lapsed
US
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Intercostal tube
Assignee: Individual
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Filing: 1983-07-27
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Granted: 1985-10-22
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Expires: 2003-07-27
Abstract
Abstract An intercostal tube designed to be inserted between the ribs of a patient for drainage purposes of the chest area, made of relatively stiff but pliable plastic material with its inserting end at a sharp taper with a blunted end, that by being arcuate, preserves the adequate rigidity to permit the tube to be compressed transversely and inserted between the ribs, without widening the portion of the tube required to pass between the ribs, which would require a larger opening in the patient, and increased pain, and that avoids snagging tissue during insertion.
Inventors
- 👤 Edward M. Ring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:43
CPC Classifications
A; A61; A61M; A61M27/00; A61B; A61B17/00; A61B17/34; A61B17/3415
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
180 words
An intercostal tube of plastic material, the tube being of a size to enable drainage from a body cavity into which it is inserted, and being flexible about its longitudinal axis but relatively resistant to transverse crushing force; the tube having a sloping tip end portion for insertion into the body by way of a passage therein made such as one between the ribs; the end of the tube being blunted to reduce its tendency to bend or to snag body tissue during insertion, the sloping tip, when viewed transversely of the tube axis, extending in a single slope from a point on the surface of the tube toward the end of the tube and toward the opposite side of the tube but terminating short of the opposite side of the tube, leaving a continuous end that is blunted and that extends around the tube, and the blunted part of which when viewed from the end of the tube, is arcuate and is relatively rigid against collapse upon being forced through a passage such as the one between the ribs.
Claim 2
Dependent Claim
180 words
An intercostal tube of plastic material, the tube being of a size to enable drainage from a body cavity into which it is inserted, and being flexible about its longitudinal axis but relatively resistant to transverse crushing force; the tube having a sloping tip end portion for insertion into the body by way of a passage therein made such as one between the ribs; the end of the tube being blunted to reduce its tendency to bend or to snag body tissue during insertion, the sloping tip, when viewed transversely of the tube axis, extending in a single slope from a point on the surface of the tube toward the end of the tube and toward the opposite side of the tube but terminating short of the opposite side of the tube, leaving a continuous end that is blunted and that extends around the tube, and the blunted part of which when viewed from the end of the tube, is arcuate and is relatively rigid against collapse upon being forced through a passage such as the one between the ribs.
Claim 3
Dependent Claim
32 words
The tube of claim 1, the slope being about twenty-five degrees to the longitudinal axis, and the tip of the tube being rigid enough to be inserted between the ribs without bending.
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) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |