Clip for an aneurism suitable for being implanted into tissue in which an aneurism has formed and carrying out a tight closure of the aneurism which comprises a pair of claw members (2a, 2b) made of non-metallic material, said claw members being provided with articulated joining means (3) which allow the rotation of the pair of claw members around a pivot (4) which interlocks them, the clip being able to adopt at least one opening position (A) and one closure position (B)； the clip being provided with at least one spring element (6) at least partially housed in the clip which bends to arrange the clip in closure position which comprises at least one flexible (7) and elastic element with a section with arced configuration (8), press-fitted with two opposing ends (9a, 9b) each one exerting pressure on a different claw member both in the opening and in the closure position.
