US Patent No: 5,507,734
Number of patents in Portfolio can not be more than 2000
Drainage device
Stats
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Apr 16, 1996
Issued date -
Apr 1, 1994
filing date -
08/221,977
serial no -
Expired
status
Importance
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Abstract
An apparatus for draining fluids, for example, from a chest or pleural cavity, includes a collection chamber for collecting fluids through an inlet port for entry of the fluids. Also included is a dry or waterless suction control chamber in fluid communication with the collection chamber for regulating the degree of vacuum imposed in the collection chamber. If desired, a seal chamber can also be provided between the dry suction control chamber and the collection chamber so as to prevent any ambient or atmospheric air from passing into the collection chamber. The suction control chamber has a first inlet which is coupled to a suction source and a second inlet communicates with the ambient. A waterless regulator is provided for regulating the degree of suction imposed in the collection chamber at a plurality of predetermined preset levels of suction. This regulator is positioned between the suction inlet and the ambient inlet. The suction control chamber also has at least a visual indicator disposed between the regulator and the suction inlet for providing immediate confirmation of proper operation of suction in the collection chamber. The present invention also includes a device for retaining tubing under compression so as to provide self-sealing capability of the tubing during sampling or injection procedures.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,425,125 Two-chamber underwater drainage apparatus with oneway outflow valve | 14 | 1981 | |
| 4,468,226 Surgical drainage apparatus with incremental suction control and indication | 32 | 1982 | |
| 4,469,484 Surgical drainage device with automatic negative pressure relief system | 16 | 1982 | |
| 4,605,400 Surgical drainage apparatus | 27 | 1984 | |
| 4,619,647 Surgical drainage apparatus | 10 | 1985 | |
| 4,675,011 Surgical drainage apparatus | 15 | 1985 | |
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| 4,544,370 Air leak detection system for chest fluid collection bottles and blow-out prevention baffle | 26 | 1982 | |
| 4,698,060 Pressure regulation system | 30 | 1984 | |
| 4,715,855 Dry bottle drainage system | 21 | 1984 | |
| 4,889,531 Dry bottle drainage system | 24 | 1987 | |
| 4,902,284 Dry bottle drainage system | 18 | 1988 | |
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| 4,258,824 Sound muffling baffle for drainage device | 32 | 1979 | |
| 4,519,796 Thoracic drainage device | 24 | 1983 | |
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| 4,533,353 Dry type discharge liquid extraction device for the thoracic chamber | 16 | 1982 | |
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| 4,372,336 Chest drainage unit | 37 | 1980 | |
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| 4,534,765 Modular drainage apparatus having excess negativity control | 9 | 1982 | |
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| 4,455,141 Drainage apparatus with vacuum control | 18 | 1982 | |
| 4,540,413 Cardiopulmonary drainage collector with blood transfer adapter | 52 | 1983 | |