US4296748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater drainage apparatus with separable suction control chamber
Assignee: Bioresearch Inc
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Filing: 1979-06-27
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Granted: 1981-10-27
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Expires: 1999-06-27
Abstract
Abstract An underwater drainage apparatus is provided which is convertible from a two bottle system including a collection chamber and underwater seal chamber to a three bottle system including a suction control chamber. A rubber diaphragm is provided in the container for the collection chamber and underwater seal and a needle having a large bore is provided in the suction control chamber. Trackways on the suction control chamber and collection chamber interfit so that the suction control chamber can be slid into position wherein the needle penetrates the diaphragm to place the suction control chamber in fluid communication with the underwater seal chamber and collection chamber.
Inventors
- 👤 Leonard D. Kurtz
- 👤 Robert E. Bidwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:39
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/60; A61M1/61
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
An underwater drainage apparatus comprising an integral container having an inlet adapted to be connected to the pleural cavity of a patient, an underwater seal chamber disposed beneath said inlet, a tube extending from said inlet into the lower end of said underwater seal chamber, a collection chamber for receiving fluid overflowing from said underwater seal chamber, an outlet in the upper end of said container, an outlet chamber surrounding said outlet within the container, a passageway interconnecting said outlet chamber with said underwater seal chamber, diaphragm means disposed within said outlet chamber, a separable suction control chamber attachable to said integral container, said suction control chamber including a U tube manometer having a small arm open to atmosphere and a large arm, a passageway extending downwardly from the upper end of the large arm of the U tube manometer and needle means having a bore therethrough disposed at the lower end of said passageway.
Claim 2
Dependent Claim
155 words
An underwater drainage apparatus comprising an integral container having an inlet adapted to be connected to the pleural cavity of a patient, an underwater seal chamber disposed beneath said inlet, a tube extending from said inlet into the lower end of said underwater seal chamber, a collection chamber for receiving fluid overflowing from said underwater seal chamber, an outlet in the upper end of said container, an outlet chamber surrounding said outlet within the container, a passageway interconnecting said outlet chamber with said underwater seal chamber, diaphragm means disposed within said outlet chamber, a separable suction control chamber attachable to said integral container, said suction control chamber including a U tube manometer having a small arm open to atmosphere and a large arm, a passageway extending downwardly from the upper end of the large arm of the U tube manometer and needle means having a bore therethrough disposed at the lower end of said passageway.
Claim 3
Dependent Claim
24 words
An underwater drainage apparatus according to claim 1 and further including complementary track means on said integral container and said separable suction control chamber.
Claim 4
Dependent Claim
164 words
A package for forming a drainage apparatus with a collection chamber and an underwater seal chamber and a three chambered apparatus including a suction control chamber comprising an integral container having an inlet adapted to be connected to the pleural cavity of a patient, an underwater seal chamber disposed beneath said inlet, a tube extending from said inlet into the lower end of said underwater seal chamber, a collection chamber for receiving fluid overflowing from said underwater seal chamber, an outlet from said container, an outlet chamber surrounding said outlet within the container, a passageway interconnecting said outlet chamber with said underwater seal chamber, diaphragm means disposed within said outlet chamber, a separable suction control chamber including a U tube manometer having a small arm open to atmosphere and a large arm, a passageway extending downwardly from the upper end of the large arm of the U tube manometer and needle means having a bore therethrough disposed at the lower end of said passageway.
Claim 5
Dependent Claim
164 words
A package for forming a drainage apparatus with a collection chamber and an underwater seal chamber and a three chambered apparatus including a suction control chamber comprising an integral container having an inlet adapted to be connected to the pleural cavity of a patient, an underwater seal chamber disposed beneath said inlet, a tube extending from said inlet into the lower end of said underwater seal chamber, a collection chamber for receiving fluid overflowing from said underwater seal chamber, an outlet from said container, an outlet chamber surrounding said outlet within the container, a passageway interconnecting said outlet chamber with said underwater seal chamber, diaphragm means disposed within said outlet chamber, a separable suction control chamber including a U tube manometer having a small arm open to atmosphere and a large arm, a passageway extending downwardly from the upper end of the large arm of the U tube manometer and needle means having a bore therethrough disposed at the lower end of said passageway.
Claim 6
Dependent Claim
24 words
An underwater drainage apparatus according to claim 3 and further including complementary track means on said integral container and said separable suction control chamber.
Claim 7
Dependent Claim
145 words
An underwater drainage apparatus comprising a container including a first container including an inlet opening adapted to be connected to a patient's pleural cavity, a collection chamber in fluid communication with the inlet, an outlet, an underwater seal chamber disposed between the inlet and outlet, a frangible seal in a wall of said container, a trackway on an outer wall of said first container, a separable second container comprising a suction manometer chamber having a needle with a bore therein extending outwardly from a wall of said second container, a trackway on an outer wall of said second container, said trackways on said first and second containers adapted to interfit for sliding engagement between said first and second containers to position said needle on said second container to puncture said seal on said first container to place said first and second containers in fluid communication.
Claim 8
Dependent Claim
145 words
An underwater drainage apparatus comprising a container including a first container including an inlet opening adapted to be connected to a patient's pleural cavity, a collection chamber in fluid communication with the inlet, an outlet, an underwater seal chamber disposed between the inlet and outlet, a frangible seal in a wall of said container, a trackway on an outer wall of said first container, a separable second container comprising a suction manometer chamber having a needle with a bore therein extending outwardly from a wall of said second container, a trackway on an outer wall of said second container, said trackways on said first and second containers adapted to interfit for sliding engagement between said first and second containers to position said needle on said second container to puncture said seal on said first container to place said first and second containers in fluid communication.
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |