Surgery – Means and methods for collecting body fluids or waste material – Aspiration collection container or trap
Patent
1988-11-07
1990-05-08
Kruter, Jerome L.
Surgery
Means and methods for collecting body fluids or waste material
Aspiration collection container or trap
604118, A61M 100
Patent
active
049234510
ABSTRACT:
A chest drainage device is provided for draining fluid and gases from the pleural cavity of a patient. The drainage device has three chambers; a collection chamber, a water seal chamber, and suction control chamber. The suction control chamber includes a first column which has an upper end adapted to be open to the atmosphere, and a second column, which has a substantially larger cross-sectional area than the first column. A filter member on the lower end of the first column disperses the atmospheric air into small diameter bubbles as it enters liquid present in the lower end of the second column. The present invention provides an improved means for muffling the sound of the atmospheric air as it bubbles through the liquid in the second column. Additionally, the present invention provides a means for increasing the accuracy of the vacuum pressure actually being applied to the pleural cavity of the patient as compared to the prescribed vacuum pressure.
REFERENCES:
patent: 3545440 (1970-12-01), Mishkin et al.
patent: 3782497 (1974-01-01), Bidwell et al.
patent: 4258824 (1981-03-01), Kurtz et al.
patent: 4439190 (1984-03-01), Protzmann et al.
patent: 4601715 (1986-07-01), Olson
patent: 4781707 (1988-11-01), Boehringer et al.
Sintercon by Advance Filtration Limited, date of publication unknown, Advanced Filtration Limited, Wietham North Wales, LL12 9YH.
Allison Richard D.
Beck Andrew J.
Kruter Jerome L.
Sherwood Medical Company
Smith Montgomery W.
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