SELF-EXPANDING REMOVABLE CAVA FILTER OF TINBTAZR ALLOY Russian patent published in 2020 - IPC A61M1/34 A61F2/01 A61L27/06 A61L27/50 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, namely to X-ray endovascular dilatation and discloses a self-expanding removable cava filter. Cava filter is characterized by that it consists of alloy TiNbTaZr and includes 3 inseparable parts in finished product: 1 - woven from thin wire TiNbTaZr base, 2 - bioresorbable polymer with embedded medicine applied on surface of first element, 3 - woven cone element of mesh structure from thin wire TiNbTaZr, which is located across the blood flow and serves to retain thrombi. Invention extends the range of articles implanted into human vessels and made from material with shape memory effect, ensuring absence of allergic reactions on the part of the body and having the property of self-unfolding.

EFFECT: design and material of cava filter have high safety for organism by using nickel-free material, minimizing possibility of postoperative complications and negative reactions of organism, while ensuring quality non-injurious fixation of the product, effective thrombotic entrapment ensured by the braided shape of the product, the material used and the controlled release of the drug.

1 cl, 1 ex, 2 dwg