Patent ID: 8404116

Claim:
A safety insert or an extra-corporeal circuit, comprising: a first half-shell including a first tubular connector with a seat having a substantially cylindrical shape and defining an axis X; a second half-shell including a second tubular connector configured for connection to a transducer; and a hydrophobic semi-permeable membrane enclosed between the first half-shell and the second half shell, the seat being configured to receive an end of a branch pipe from the extra-corporeal circuit, with said end defining a front surface substantially configured as an annulus and being insertable inside the seat in an axial direction along the axis X, the seat including a plurality of abutments extending in a substantially radial direction and being tangentially spaced from one another so as to form a support for the front surface of the end and define a limit stop in the axial direction for the end, and the abutments defining a partial support for the annulus of the front surface of the end and defining at least one radially outer cavity configured to leave at least one radially outer zone of the annulus without support.