Abstract: A device for medical, use and particularly a filter intended to be placed in a vessel, provided with flat branches, called fixing branches, which cut off the blood flow when the device is placed in the vessel. The extremities of the fixing branches are locked inside of at least one ogival head by means of a locking art and the shape of said extremities is adapted to the internal and external peripheries, respectively of the ogival head and of the locking part. According to a first embodiment, the locking part and the ogival head being cylindrical parts, each fixing branch has a slightly curved extremity so as to adapt itself to the internal periphery of the ogival head and to the external periphery of the locking part. According to a second embodiment, the internal and external peripheries, respectively of the ogival head and of the locking part form regular polygons of which the number of sides is equal to the number of fixing branches of the filter, and of which the sides are parallel by pairs.

Abstract: A medical kit comprises: a) a filter consisting of elastic lugs deployed substantially in the form of a conical corolla emerging rearwardly from a distal head, and having a small orifice of diameter D1 at its end; b) a metal guide of outside diameter D2; c) a push rod consisting of a hollow tube having an internal opening of diameter D3; d) an insertion tube fitted at its distal end with a rigid cylindrical cap of inside diameter D4, and having an internal annular shoulder towards its proximate end capable of serving as a stop for the ends of the filter tabs. The respective dimensions of the various elements are such that D4>D3>D1>D2.