A flow-through chamber, e.g. a drip chamber or an expansion chamber (1), intended to form part of a duct for blood or similarly sensitive fluids and comprising at least one inlet (2) and at least one outlet (4) and provided with special means (8) for the deflection of the fluid flow after the inlet (2). …??The said means is formed by the actual wall of the chamber (1) in that a portion (8) of the same is intented. …??The chamber (1) may be manufactured by blow moulding with simultaneous formation of the said indented part (8).
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