Patent ID: 7179378

Claim:
Transducer-protector device for biomedical haemodialysis lines comprising: a first element including in a single piece of moulded thermoplastic material a tubular fitting of the female Luer Lock type, designed to be connected to a tubing of a haemodialysis machine, and an annular radial flange, a second element including in a single piece of moulded thermoplastic material a tubular fitting and an annular radial flange permanently joined in sealed fashion to said annular radial flange of the first element with said tubular fittings arranged coaxially, and a filtering membrane of permeable material defining a sterile anti-contamination barrier peripherally secured between said annular radial flanges, wherein the thermoplastic material of said first element is a relatively elastic material, and wherein: said thermoplastic material of said first element is a polymer with a semi-crystalline structure and a structure that remains in an amorphous state in a portion of said annular radial flange of the first element that has a greatly reduced thickness to an extent such as to be transparent, thereby allowing the vision of said membrane from the exterior of said first element.