Patent ID: 8166802
Filing Date: 2012-05-01
Classification: A61M

Abstract:
1. A chest drainage apparatus, comprising: an enclosure with a transparent window; a union for connection to an end of a tube designed to be connected, at another end, to the chest cavity of a patient in order to convey exuded liquids and air losses; a collection vessel arranged to receive the exuded liquids from the tube connected to the union; a duct ( a device for displaying and measuring air losses, the device in communication with the duct, comprising, the device located within the enclosure at the transparent window, the device comprising i) a chamber ( ii) a bell ( iii) a constantly open air outflow port ( iv) an air outflow port ( v) a manually operable, opening and closure element ( the conveyed air losses passing through the air outflow port into the top portion of the chamber when the opening and closure element is in an open position, the conveyed air losses not passing through the air outflow port into the top portion of the chamber when the opening and closure element is in a closed position, and with the opening and closure element in the closed position the air outflow port is closed causing an action emptying the liquid from the bell through the constantly open air outflow port, a measurement of a flow-rate of the loss of air being determined by a time required to empty the volume of the liquid from the bell.