Catheter Device intended to be introduced in or connected to a catheter introduced, existing in a Cavity of the body; for example, for drainage of urine. Includes a Channel (6) to the entrance of the gas that has two openings, the first Container flows into the liquid Collection (4) and the second in another Channel (5) where it circulates the Fluid to Drain.As the gas Channel has no other openings, a gas circuit is obtained in which the intended to enter the channel (5) is taken from the liquid Container Liquid Collection (4).
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