Suction systems

Details Suction systems Suction systems

A - Human Necessities

61

M

A61M 1/00 (2006.01)

Patent

CA 2108709

ABSTRACT OF THE DISCLOSURE Medico-surgical suction system are known in which the outlet of a container is connected to a vacuum pump, and an inlet is connected to a suction catheter. In the present invention the catheter is connected to the container inlet via a dual-lumen tube assembly one end of which is connected to the container and the other end of which has a suction control and a coupling for the catheter. A valve located in the outlet of the container is connected to the suction control via a minor lumen of the tube. A side lumen enables the vacuum pump to apply reduced pressure to one end of the valve, which holds the valve off against the action of a spring. Actuating the suction control allows air to flow to the valve via the minor lumen so that the effect of the reduced pressure is overcome and the spring opens the valve, thereby applying suction to the catheter.

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