A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
128/106
A61M 1/00 (2006.01)
Patent
CA 1170533
TITLE OF THE INVENTION THORACIC DRAINAGE UNIT ABSTRACT OF THE DISCLOSURE A thoracic drainage unit for removal of fluids from the thoracic cavity of a patient and/or to assist a patient in breathing comprises a col- lection chamber for receiving the fluids from the patient and an underwater seal located between the collection chamber and the patient. The under- water seal prevents pressure being applied to the thoracic cavity or back- flow to that cavity. The water or other liquid for the seal is provided with the collection chamber as a complete unit ready for use. A collapsible bottle h s a breakable neck that is readily broken by the user, whereupon the bottle is collapsed to force the liquid therein to create the liquid deal A means is provided to prevent the liquid from reentering the bottle as it reexapnds so that the precise needed volume of liquid is retained to create the seal. Also, the water seal is located in a particular location, and the underwater seal chamber is designed such that seal integrity is not lost upon tipping over the drainage unit; and the seal remains viable upon rerighting the unit. The underwater seal chamber is designed to allow view- ing of an air leak from the patient, even through foaming or opaque fluid. Critical measurement area for collected fluids is provided, and hangers that can be used also as floor stand are included with unit.
388683
Kayser John P.
Pinkert John R.
Gowling Lafleur Henderson Llp
The Boc Group Inc.
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