US3589368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Postsurgical tubes with capped proximal end
Assignee: Individual
•
Filing: 1969-02-07
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Granted: 1971-06-29
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Expires: 1989-02-07
Abstract
Abstract Thoracic catheters and similar postsurgical drainage tubes are made with a proximal end unit which forms an end closure to maintain sterile conditions and to provide forceps grasping means during patient insertion procedures. Following placement in the patient, the closed tip of the proximal end is cut off to permit fluid flow through the tube.
Inventors
- 👤 Isaac S Jackson
- 👤 David S Sheridan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/0074; A61M25/0069; A61M25/008
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
141 words
A postsurgical drainage tube in which the lumen of the proximal end can remain sterile throughout placement of the tube in a patient and until the tube is prepared for fluid flow therethrough formed of nonfibrous plastic material comprising a distal end portion, at least one fluid opening in said distal end portion, a proximal end portion, a central body portion joining the distal end portion to the pRoximal end portion, and a closed cap on said proximal end, said closed cap having an elongated cylindrical portion which tapers to a closed tip, said cylindrical portion having an outside diameter at least equal to the outside diameter of said proximal end, said closed tip having an arcuate perimeter, no portion of said closed tip having dimension transverse to the longitudinal axis of said cylindrical portion as great as said outside diameter.
Claim 2
Dependent Claim
141 words
A postsurgical drainage tube in which the lumen of the proximal end can remain sterile throughout placement of the tube in a patient and until the tube is prepared for fluid flow therethrough formed of nonfibrous plastic material comprising a distal end portion, at least one fluid opening in said distal end portion, a proximal end portion, a central body portion joining the distal end portion to the pRoximal end portion, and a closed cap on said proximal end, said closed cap having an elongated cylindrical portion which tapers to a closed tip, said cylindrical portion having an outside diameter at least equal to the outside diameter of said proximal end, said closed tip having an arcuate perimeter, no portion of said closed tip having dimension transverse to the longitudinal axis of said cylindrical portion as great as said outside diameter.
Claim 3
Dependent Claim
12 words
A postsurgical drainage tube of claim 1 which is an intercostal catheter.
Claim 4
Dependent Claim
18 words
A postsurgical drainage tube of claim 1 wherein said closed tip has a width longer than its depth.
Claim 5
Dependent Claim
40 words
A postsurgical drainage tube of claim 1 wherein the inside diameter of said cylindrical portion is substantially equal to the outside diameter of said proximal end and said closed cap is joined to said proximal end with an overlap joint.
Claim 6
Dependent Claim
36 words
A postsurgical drainage tube of claim 1 wherein said outside diameter is substantially equal to the outside diameter of said proximal end and said closed cap is joined to said proximal end by a butt joint.
Claim 7
Dependent Claim
28 words
A post surgical drainage tube of claim 1 wherein said tube is formed of flexible transparent plastic material and said closed cap is formed of semirigid plastic material.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |