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Patent US3924624A successfully refreshed from Google Patents.
US3924624A
Expired / Lapsed
US
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Modular thoracic drainage device
Assignee: Sherwood Medical Co
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Filing: 1974-10-10
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Granted: 1975-12-09
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Expires: 1994-10-10
Abstract
Abstract A modular thoracic drainage device having one or more preformed plastic ''''bottles'''' or chamber members which can be selectively connected together to provide ''''one-bottle'''', ''''two-bottle'''', ''''three-bottle'''' and ''''four-bottle'''' systems. The members can be connected together in a ''''four-bottle'''' system which includes a preformed drainage collector chamber, a liquid seal chamber, a pressure regulating manometer chamber, and a second liquid seal and direct reading manometer chamber. Each member has an integral connector for use in effecting fluid communication with another chamber and the chambers are provided with complementary coupling portions for receiving locking pins to secure adjacent members in fixed relationship.
Inventors
- 👤 Eli Schachet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:31
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/60; A61M1/61; Y; Y10; Y10S; Y10S128/00; Y10S128/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
219 words
A drainage apparatus comprising a hollow relatively rigid plastic drainage collector chamber member having a chamber with at least one partition wall integral therewith dividing the chamber into a pair of relatively rigid vertical channels connected in fluid communication witH each other above the upper end of said partition wall, one of said channels having an initial predetermined amount of liquid to a predetermined level, an indicia mark on said chamber providing a visual indication of said level, passage means for connection in fluid communication at the upper end thereof with a body cavity to be drained, said passage means extending through an upper portion of said chamber member and into said one channel to a point below said indicia mark, vent means above the upper end of said partition wall connecting said chamber to atmosphere whereby fluid draining from the cavity flows through the passage means and enters the liquid in said one channel to fill said one channel and overflow into said second channel with gas from the cavity passing through the liquid and out through said vent means, and tube connection means above the upper end of said partition wall and the level of liquid in said collector chamber during use of the apparatus for connecting another chamber member in fluid communication with said collector chamber.
Claim 2
Dependent Claim
219 words
A drainage apparatus comprising a hollow relatively rigid plastic drainage collector chamber member having a chamber with at least one partition wall integral therewith dividing the chamber into a pair of relatively rigid vertical channels connected in fluid communication witH each other above the upper end of said partition wall, one of said channels having an initial predetermined amount of liquid to a predetermined level, an indicia mark on said chamber providing a visual indication of said level, passage means for connection in fluid communication at the upper end thereof with a body cavity to be drained, said passage means extending through an upper portion of said chamber member and into said one channel to a point below said indicia mark, vent means above the upper end of said partition wall connecting said chamber to atmosphere whereby fluid draining from the cavity flows through the passage means and enters the liquid in said one channel to fill said one channel and overflow into said second channel with gas from the cavity passing through the liquid and out through said vent means, and tube connection means above the upper end of said partition wall and the level of liquid in said collector chamber during use of the apparatus for connecting another chamber member in fluid communication with said collector chamber.
Claim 3
Dependent Claim
242 words
A drainage apparatus comprising a relatively rigid plastic collector chamber having first and second relatively rigid liquid holding chamber portions partitioned from each other by a partition wall with the upper ends of said chambers in fluid communication with each other above the upper end of said partition wall so that liquid overflowing said first chamber portion flows into said second chamber portion, said first chamber portion having an initial amount of liquid to a predetermined level, an indicia means providing a visual indication of said level, passage means having one end exteriorly of the collector chamber for connection with a body cavity to be drained, said passage means extending into the collector chamber and into said first chamber portion with the opposite end of said passage means below the upper end of said first chamber portion, said indicia means, and the level of said initial amount of liquid so that drainage liquid and gas may flow into the liquid in said first chamber portion during use of the apparatus, gas outlet means above the upper end of said partition wall and the level of liquid in said first chamber portion during use of the apparatus for passing gas out of the collector chamber, and tube connection means above the upper end of said partition wall and the level of liquid in said collector chamber during use of the apparatus for connecting another chamber member in fluid communication with said collector chamber.
Claim 4
Dependent Claim
242 words
A drainage apparatus comprising a relatively rigid plastic collector chamber having first and second relatively rigid liquid holding chamber portions partitioned from each other by a partition wall with the upper ends of said chambers in fluid communication with each other above the upper end of said partition wall so that liquid overflowing said first chamber portion flows into said second chamber portion, said first chamber portion having an initial amount of liquid to a predetermined level, an indicia means providing a visual indication of said level, passage means having one end exteriorly of the collector chamber for connection with a body cavity to be drained, said passage means extending into the collector chamber and into said first chamber portion with the opposite end of said passage means below the upper end of said first chamber portion, said indicia means, and the level of said initial amount of liquid so that drainage liquid and gas may flow into the liquid in said first chamber portion during use of the apparatus, gas outlet means above the upper end of said partition wall and the level of liquid in said first chamber portion during use of the apparatus for passing gas out of the collector chamber, and tube connection means above the upper end of said partition wall and the level of liquid in said collector chamber during use of the apparatus for connecting another chamber member in fluid communication with said collector chamber.
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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |