Abstract: An automatically centering filter device is disclosed, intended for preventing embolisms, comprising an assembly of identical, curved, elastic legs, disposed in two's successively in opposite direction and joined together at their ends; said legs, in the out-spread state for use, being angularly distributed in substantially regular manner. The invention is more especially applicable to the medical domain.

Abstract: To provide access to the circulatory system, and to allow withdrawal and return of blood, of a living body, a T shaped implantable device includes a bar having outlet ends connected to the circulatory system, and a shaft having an end for forming an access well connectable to an external exchange system. The device can be connected, or disconnected, to the external exchange system by means of a rotary plug which is in the shape of a substantially cylindrical, circular disk whose outer diameter corresponds substantially to the inside diameter of the access well. The rotary plug operates in conjunction with a complementary component in the access well to ensure that the disk bears with pressure on the bottom of the access well, such that the closure of the well is leakproof.

Abstract: The invention concerns an implantable drug-dispensing capsule and a process and system facilitating its use. According to the invention, a mechanism (7) for detecting the proximity of the injection needle (1) is provided inside the body (5) of the capsule (3), which detection mechanism is connected to an external signaling device (32) which signals when this proximity is realized.The invention is in particular applicable to the injection of various drugs in localized sites.