Device and system for draining a body cavity and methods related

Details Device and system for draining a body cavity and methods related Device and system for draining a body cavity and methods related

1997-01-14

1999-11-23

McDermott, Corrine

Surgery

Means and methods for collecting body fluids or waste material

Aspiration collection container or trap

604319, 604324, A61M 100

Patent

active

059892340

ABSTRACT:
Featured is a device for draining fluids and/or gas from body cavities, including at least a pressure control chamber and a collection chamber being fluidly coupled by a one-way valve thereby establishing a waterless seal between the collection chamber, including the patient, and the suction source. The pressure control chamber also includes a waterless suction pressure control regulator that controls and maintains the suction pressure at or about a selected value. Preferably, the regulator includes a spring operated valve. The device also includes a vent path arrangement having an intermediate chamber and at least two passages that are perpendicular to two adjacent surfaces within the intermediate chamber. The two passages and intermediate chamber are arranged so liquid in the collection chamber does not flow and contaminate the upstream portions of the device when the device is resting on its front side or backside. Also featured is an autotransfusion system including a drainage device and a bag assembly attached thereto. The device and bag assembly are fluidly coupled so the differential pressure established by the device causes the blood from the patient to drain into the bag assembly. In an alternate embodiment, the drainage device is configured to continuously collect and filter a patient's blood and continuously output it for re-infusion back into the patient.

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