US3960153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the palliative treatment of pleural effusions
Assignee: Individual
•
Filing: 1972-02-22
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Granted: 1976-06-01
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Expires: 1992-02-22
Abstract
Abstract To withdraw pleural effusions from between the visceral and parietal pleurae, which accumulate due to metastatic carcinoma of the breast, a catheter is inserted into the fluid accumulation which is withdrawn through the catheter by a suction device. The catheter has a weighted end which can be magnetically manipulated. The catheter is provided with specially shaped and located openings to take into account the fluid's high content of insoluble, coagulable strands of fibrin.
Inventors
- 👤 Jane Towne Carey
- 👤 Alfred Andrew Fracchia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:37
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61M1/00; A61M1/84; A61M25/0021; A61M25/0023; A61M25/01; A61M25/0105; A61M25/0127
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
152 words
Apparatus for removing fluid from a body cavity comprising an elongated flexible tube including distal and proximal ends and having at the distal end a closed chamber, said proximal end being adapted for being coupled to a suction source, the tube including a generally cylindrical wall provided with a bore extending substantially throughout the tube from adjacent said chamber to said proximal end, said wall being provided with elliptical openings distributed longitudinally along said wall from adjacent the chamber toward said proximal end along a length of the tube which is less than one-third the total length thereof, and a weight in said chamber, the elliptical openings being substantially the same size and having a major axis of about 8.0 to 10.0 mm., a minor axis of about 4.0 - 50 mm., a distance between foci of about 7.0 to 8.8 mm. and an area of about 0.215 to 0.393 sq. cm.
Claim 2
Dependent Claim
152 words
Apparatus for removing fluid from a body cavity comprising an elongated flexible tube including distal and proximal ends and having at the distal end a closed chamber, said proximal end being adapted for being coupled to a suction source, the tube including a generally cylindrical wall provided with a bore extending substantially throughout the tube from adjacent said chamber to said proximal end, said wall being provided with elliptical openings distributed longitudinally along said wall from adjacent the chamber toward said proximal end along a length of the tube which is less than one-third the total length thereof, and a weight in said chamber, the elliptical openings being substantially the same size and having a major axis of about 8.0 to 10.0 mm., a minor axis of about 4.0 - 50 mm., a distance between foci of about 7.0 to 8.8 mm. and an area of about 0.215 to 0.393 sq. cm.
Claim 3
Dependent Claim
20 words
Apparatus as claimed in claim 1 wherein said weight is unmagnetized but is magnetically attractable for manipulation in said cavity.
Claim 4
Dependent Claim
22 words
Apparatus as claimed in claim 1 comprising means detachably coupled to the proximal end for coupling the latter to said suction source.
Claim 5
Dependent Claim
54 words
Apparatus as claimed in claim 1 comprising trocar means to insert the tube into said cavity, said trocar means including a tapered sleeve and a obturator detachably extending through and conforming to the shape of the sleeve, said obturator having a pointed end extending from the sleeve and adapted for penetrating into said cavity.
Claim 6
Dependent Claim
18 words
Apparatus as claimed in claim 1 wherein the tube inclusive of said chamber is of uniform diameter throughout.
Claim 7
Dependent Claim
12 words
Apparatus as claimed in claim 1 wherein the tube is of polyvinyl.
Claim 8
Dependent Claim
19 words
Apparatus as claimed in claim 1 wherein the weight is an elongated cylinder weighing about 1.25 to 2.25 grams.
Claim 9
Dependent Claim
28 words
Apparatus as claimed in claim 1 wherein the tube has an outside diameter of about 4.3 to 5.3 mm. and an inner diameter of about 3.8 to 4.8.
Claim 10
Dependent Claim
25 words
Apparatus as claimed in claim 1 wherein said openings are distributed along a length of the tube equal to about ten centimeters from said chamber.
Claim 11
Dependent Claim
30 words
Apparatus as claimed in claim 9 comprising gradations along the tube adjacent the length in which the openings are located to enable ascertaining the depth of penetration of the tube.
Claim 12
Dependent Claim
17 words
Apparatus as claimed in claim 1 wherein the openings are staggered on opposite sides of the tube.
Claim 13
Dependent Claim
25 words
Apparatus as claimed in claim 9 wherein said tube is imperforate between the proximal end and the said length in which the openings are located.
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) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |