
US Patent No: 4,735,606
Number of patents in Portfolio can not be more than 2000
Chest drainage apparatus
Stats
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Apr 5, 1988
Issued date -
Oct 12, 1982
filing date -
06/433,932
serial no -
Expired
status
Importance
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Abstract
A medical underwater seal, chest drainage apparatus is provided which includes a catheter having a main lumen and an auxiliary lumen for insertion into a chest cavity to be drained of body fluid. The main lumen is connected to a drainage collection device and the auxiliary lumen is adapted to be connected to a variable setting venting valve so that an adjustable flow rate of air from the atmosphere can flow into the auxiliary lumen for venting the cavity.
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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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| 4,363,321 I.V. Administration flow rate gauge | 4 | 1981 | |
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| 4,382,442 Thoracostomy pump-tube apparatus | 10 | 1980 | |
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| 4,372,336 Chest drainage unit | 37 | 1980 | |
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| 4,300,550 Suction and oxygenation catheter | 80 | 1980 | |